/* roulang page: index */
:root {
            --c-primary: #A52A2A;
            --c-primary-deep: #7E1F1F;
            --c-accent: #C79B4B;
            --c-bg: #F7F3EC;
            --c-surface: #FFFFFF;
            --c-ink: #1C1C1C;
            --c-text-muted: #6B6B6B;
            --c-line: rgba(28, 28, 28, 0.08);
            --c-green: #2F7D5B;
            --c-cream: #F0EAE0;
            --radius-card: 14px;
            --radius-btn: 8px;
            --radius-badge: 4px;
            --shadow-card: 0 8px 30px rgba(28, 28, 28, 0.06);
            --shadow-card-hover: 0 14px 40px rgba(28, 28, 28, 0.10);
            --shadow-float: 0 12px 40px rgba(165, 42, 42, 0.18);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            --transition-base: all 0.25s ease;
            --container-max: 1200px;
            --section-gap-desktop: 72px;
            --section-gap-mobile: 48px;
            --header-height: auto;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--c-bg);
            color: var(--c-ink);
            font-size: 16px;
            line-height: 1.8;
            margin: 0;
            padding: 0;
            padding-bottom: 76px;
            min-width: 320px;
            font-variant-numeric: tabular-nums;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        a {
            color: var(--c-primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover {
            color: var(--c-primary-deep);
            text-decoration: none;
        }

        button,
        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 16px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-sans);
            color: var(--c-ink);
            margin-top: 0;
            font-weight: 800;
            line-height: 1.25;
        }

        h1 {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 800;
            line-height: 1.2;
        }

        h2 {
            font-size: clamp(22px, 2.8vw, 28px);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 10px;
        }

        p {
            margin-top: 0;
            margin-bottom: 16px;
            color: var(--c-text-muted);
            line-height: 1.8;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .section {
            padding-top: var(--section-gap-desktop);
            padding-bottom: var(--section-gap-desktop);
            position: relative;
        }

        .section-sm {
            padding-top: 48px;
            padding-bottom: 48px;
        }

        .section-tight {
            padding-top: 36px;
            padding-bottom: 36px;
        }

        .section-alt {
            background-color: #FBF8F3;
        }

        .section-dark {
            background-color: var(--c-ink);
            color: #F5F0E8;
        }

        .section-dark h2,
        .section-dark h3,
        .section-dark .section-lead {
            color: #F5F0E8;
        }

        .section-dark p {
            color: #C9C2B6;
        }

        .section-lead {
            font-size: 16px;
            color: var(--c-text-muted);
            max-width: 720px;
            margin: 0 auto 40px;
            line-height: 1.8;
        }

        .text-center {
            text-align: center;
        }

        .mt-0 {
            margin-top: 0;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .mb-12 {
            margin-bottom: 12px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .mb-32 {
            margin-bottom: 32px;
        }
        .mb-40 {
            margin-bottom: 40px;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            font-family: var(--font-sans);
            border: 1px solid transparent;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
            line-height: 1.2;
        }

        .btn-primary {
            background-color: var(--c-primary);
            color: #FFFFFF;
            border-color: var(--c-primary);
        }

        .btn-primary:hover {
            background-color: var(--c-primary-deep);
            border-color: var(--c-primary-deep);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(165, 42, 42, 0.25);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--c-primary);
            border: 1px solid var(--c-primary);
        }

        .btn-secondary:hover {
            background-color: rgba(165, 42, 42, 0.08);
            color: var(--c-primary-deep);
            border-color: var(--c-primary-deep);
            transform: translateY(-2px);
        }

        .btn-light {
            background-color: #FFFFFF;
            color: var(--c-primary);
            border-color: #FFFFFF;
        }

        .btn-light:hover {
            background-color: #F5EFE8;
            color: var(--c-primary-deep);
            border-color: #F5EFE8;
            transform: translateY(-2px);
        }

        .btn-sm {
            min-height: 36px;
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 6px;
            gap: 4px;
        }

        .btn-lg {
            min-height: 52px;
            padding: 14px 32px;
            font-size: 16px;
            border-radius: 10px;
        }

        :focus-visible {
            outline: 3px solid var(--c-accent);
            outline-offset: 2px;
        }

        /* ===== Badges ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.5;
            letter-spacing: 0.02em;
            background-color: rgba(199, 155, 75, 0.15);
            color: #8A6A2F;
            text-decoration: none;
        }

        .badge-red {
            background-color: rgba(165, 42, 42, 0.12);
            color: var(--c-primary-deep);
        }

        .badge-green {
            background-color: rgba(47, 125, 91, 0.12);
            color: var(--c-green);
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 900;
            background: #FFFFFF;
            border-bottom: 1px solid var(--c-line);
            box-shadow: 0 2px 12px rgba(28, 28, 28, 0.05);
        }

        .header-top {
            padding: 12px 0;
            background: #FFFFFF;
            border-bottom: 1px solid var(--c-line);
        }

        .header-top .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 18px;
            color: var(--c-ink);
            text-decoration: none;
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .logo:hover {
            color: var(--c-primary);
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--c-primary);
            color: #FFFFFF;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            flex-shrink: 0;
        }

        .search-box {
            position: relative;
            flex: 1;
            max-width: 280px;
        }

        .search-box input {
            width: 100%;
            min-height: 40px;
            padding: 8px 16px 8px 38px;
            border: 1px solid var(--c-line);
            border-radius: 8px;
            font-size: 14px;
            background: var(--c-bg);
            color: var(--c-ink);
            transition: var(--transition-base);
        }

        .search-box input:focus {
            border-color: var(--c-primary);
            box-shadow: 0 0 0 3px rgba(165, 42, 42, 0.15);
            background: #FFFFFF;
            outline: none;
        }

        .search-box .search-icon {
            position: absolute;
            left: 12px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--c-text-muted);
            font-size: 14px;
            pointer-events: none;
        }

        .version-switch {
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .version-btn {
            min-height: 36px;
            padding: 6px 14px;
            border: 1px solid var(--c-line);
            border-radius: 6px;
            background: #FFFFFF;
            color: var(--c-text-muted);
            font-size: 13px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition-base);
        }

        .version-btn:hover {
            border-color: var(--c-primary);
            color: var(--c-primary);
        }

        .version-btn.active {
            background: var(--c-primary);
            color: #FFFFFF;
            border-color: var(--c-primary);
        }

        .nav-bar {
            background: #FFFFFF;
        }

        .nav-toggle {
            display: none;
            min-height: 44px;
            padding: 8px 12px;
            border: 1px solid var(--c-line);
            border-radius: 6px;
            background: #FFFFFF;
            color: var(--c-ink);
            font-size: 18px;
            cursor: pointer;
            transition: var(--transition-base);
        }

        .nav-toggle:hover {
            border-color: var(--c-primary);
            color: var(--c-primary);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }

        .main-nav li {
            margin: 0;
        }

        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 10px 14px;
            font-size: 14px;
            font-weight: 600;
            color: var(--c-text-muted);
            text-decoration: none;
            border-radius: 6px;
            transition: var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .main-nav a:hover {
            color: var(--c-primary);
            background: rgba(165, 42, 42, 0.06);
        }

        .main-nav a.active {
            color: #FFFFFF;
            background: var(--c-primary);
        }

        .main-nav a.active:hover {
            color: #FFFFFF;
            background: var(--c-primary-deep);
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            overflow: hidden;
            background: var(--c-ink);
            padding: 80px 0;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center center;
            background-repeat: no-repeat;
            z-index: 0;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: rgba(28, 28, 28, 0.72);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 820px;
            margin: 0 auto;
        }

        .hero-play-btn {
            margin-bottom: 24px;
        }

        .hero-play-btn a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.16);
            border: 2px solid rgba(255, 255, 255, 0.55);
            color: #FFFFFF;
            font-size: 20px;
            text-decoration: none;
            transition: var(--transition-base);
            backdrop-filter: blur(6px);
        }

        .hero-play-btn a:hover {
            background: rgba(255, 255, 255, 0.28);
            border-color: #FFFFFF;
            transform: scale(1.08);
        }

        .hero h1 {
            color: #FFFFFF;
            margin-bottom: 20px;
            font-size: clamp(28px, 4.5vw, 44px);
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
        }

        .hero-subtitle {
            color: #EAE4DA;
            font-size: 16px;
            line-height: 1.9;
            max-width: 720px;
            margin: 0 auto 32px;
        }

        .hero-cta {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .hero-cta .btn {
            min-height: 48px;
            padding: 14px 28px;
            font-size: 15px;
        }

        /* ===== Data strip ===== */
        .data-strip {
            background: #FFFFFF;
            border-bottom: 1px solid var(--c-line);
            padding: 20px 0;
        }

        .data-strip .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .data-strip-label {
            font-size: 13px;
            font-weight: 700;
            color: var(--c-text-muted);
            letter-spacing: 0.03em;
            text-transform: uppercase;
            white-space: nowrap;
        }

        .data-strip-items {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            align-items: center;
        }

        .data-strip-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
            padding: 0 16px;
            border-left: 1px solid var(--c-line);
        }

        .data-strip-item:first-child {
            border-left: none;
        }

        .data-strip-item .num {
            font-size: 18px;
            font-weight: 800;
            color: var(--c-primary);
            letter-spacing: 0.02em;
        }

        .data-strip-item .label {
            font-size: 12px;
            color: var(--c-text-muted);
        }

        /* ===== Generic cards ===== */
        .card {
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            height: 100%;
        }

        .card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(165, 42, 42, 0.18);
        }

        .card-head {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }

        .card-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
            background: rgba(165, 42, 42, 0.08);
            color: var(--c-primary);
        }

        .card-icon.accent {
            background: rgba(199, 155, 75, 0.16);
            color: #8A6A2F;
        }

        .card-icon.green {
            background: rgba(47, 125, 91, 0.12);
            color: var(--c-green);
        }

        .card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--c-ink);
            margin-bottom: 0;
        }

        .card-body {
            color: var(--c-text-muted);
            font-size: 14px;
            line-height: 1.75;
        }

        .card-footer {
            margin-top: 16px;
        }

        .card-link {
            font-weight: 600;
            font-size: 14px;
            color: var(--c-primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            text-decoration: none;
            transition: var(--transition-base);
        }

        .card-link:hover {
            color: var(--c-primary-deep);
            gap: 10px;
        }

        /* ===== Selling points / feature cards ===== */
        .feature-cards {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
        }

        .feature-cards .cell {
            display: flex;
        }

        .feature-card-num {
            font-size: 40px;
            font-weight: 800;
            color: rgba(165, 42, 42, 0.12);
            line-height: 1;
            display: block;
            margin-bottom: 8px;
        }

        .feature-card-spotlight {
            background: var(--c-primary);
            color: #FFFFFF;
            border-radius: var(--radius-card);
            padding: 28px;
            border: none;
            box-shadow: 0 10px 32px rgba(165, 42, 42, 0.28);
        }

        .feature-card-spotlight .card-title,
        .feature-card-spotlight .card-body,
        .feature-card-spotlight .feature-card-num {
            color: #FFFFFF;
        }

        .feature-card-spotlight .card-icon {
            background: rgba(255, 255, 255, 0.15);
            color: #FFFFFF;
        }

        /* ===== Steps / timeline ===== */
        .steps-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            counter-reset: step-counter;
        }

        .step-item {
            flex: 1 1 220px;
            min-width: 200px;
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            padding: 24px;
            position: relative;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }

        .step-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }

        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--c-primary);
            color: #FFFFFF;
            font-weight: 800;
            font-size: 16px;
            margin-bottom: 14px;
        }

        .step-title {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--c-ink);
        }

        .step-desc {
            font-size: 13px;
            color: var(--c-text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== Brand intro ===== */
        .brand-intro-wrap {
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            padding: 32px;
            box-shadow: var(--shadow-card);
        }

        .brand-intro-wrap p {
            color: var(--c-text-muted);
            line-height: 1.9;
            font-size: 15px;
        }

        /* ===== Category entry grid ===== */
        .category-entry-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .category-entry-card {
            flex: 1 1 220px;
            min-width: 180px;
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            padding: 20px;
            text-decoration: none;
            color: var(--c-ink);
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 10px;
            box-shadow: var(--shadow-card);
        }

        .category-entry-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            color: var(--c-primary);
            border-color: rgba(165, 42, 42, 0.25);
        }

        .category-entry-icon {
            font-size: 20px;
            color: var(--c-primary);
        }

        .category-entry-name {
            font-size: 15px;
            font-weight: 700;
            color: var(--c-ink);
        }

        .category-entry-desc {
            font-size: 13px;
            color: var(--c-text-muted);
            line-height: 1.6;
        }

        .category-entry-card:hover .category-entry-name {
            color: var(--c-primary);
        }

        /* ===== Comparison ===== */
        .compare-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
        }

        .compare-col {
            flex: 1 1 280px;
            min-width: 240px;
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            padding: 24px;
            background: #FFFFFF;
            box-shadow: var(--shadow-card);
        }

        .compare-col.highlight {
            border-color: var(--c-primary);
            background: linear-gradient(180deg, #FFF9F4 0%, #FFFFFF 100%);
            box-shadow: 0 8px 28px rgba(165, 42, 42, 0.12);
        }

        .compare-title {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--c-ink);
        }

        .compare-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .compare-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--c-line);
            font-size: 14px;
            color: var(--c-text-muted);
            display: flex;
            align-items: flex-start;
            gap: 8px;
            line-height: 1.6;
        }

        .compare-list li:last-child {
            border-bottom: none;
        }

        .compare-list li i {
            color: var(--c-green);
            margin-top: 4px;
            font-size: 14px;
        }

        .compare-list li i.fa-xmark {
            color: #B0A99E;
        }

        /* ===== Social proof / testimonials ===== */
        .testimonial-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
        }

        .testimonial-card {
            flex: 1 1 260px;
            min-width: 220px;
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            padding: 22px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }

        .testimonial-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }

        .testimonial-text {
            font-size: 14px;
            color: var(--c-text-muted);
            line-height: 1.7;
            margin-bottom: 14px;
            position: relative;
            padding-left: 12px;
        }

        .testimonial-text::before {
            content: '';
            position: absolute;
            left: 0;
            top: 4px;
            bottom: 4px;
            width: 3px;
            border-radius: 2px;
            background: var(--c-accent);
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .testimonial-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(165, 42, 42, 0.12);
            color: var(--c-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
        }

        .testimonial-name {
            font-size: 13px;
            font-weight: 700;
            color: var(--c-ink);
        }
        .testimonial-role {
            font-size: 12px;
            color: var(--c-text-muted);
        }

        /* ===== News ===== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-item {
            display: flex;
            gap: 16px;
            padding: 20px 0;
            border-bottom: 1px solid var(--c-line);
            transition: var(--transition-base);
        }

        .news-item:last-child {
            border-bottom: none;
        }

        .news-item:hover {
            background: rgba(165, 42, 42, 0.03);
            padding-left: 8px;
        }

        .news-thumb {
            width: 90px;
            height: 70px;
            border-radius: 8px;
            overflow: hidden;
            flex-shrink: 0;
            background: var(--c-cream);
        }

        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .news-body {
            flex: 1;
            min-width: 0;
        }

        .news-date {
            font-size: 12px;
            color: var(--c-text-muted);
            letter-spacing: 0.02em;
            margin-bottom: 4px;
            display: block;
        }

        .news-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--c-ink);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .news-excerpt {
            font-size: 13px;
            color: var(--c-text-muted);
            line-height: 1.65;
            margin-bottom: 6px;
        }

        .news-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--c-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .news-more:hover {
            color: var(--c-primary-deep);
            gap: 8px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: 10px;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }

        .faq-item:hover {
            border-color: rgba(165, 42, 42, 0.22);
            box-shadow: var(--shadow-card-hover);
        }

        .faq-question {
            padding: 18px 20px;
            font-size: 15px;
            font-weight: 700;
            color: var(--c-ink);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            user-select: none;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-sans);
            transition: var(--transition-base);
        }

        .faq-question:hover {
            color: var(--c-primary);
        }

        .faq-question .fa-chevron-down {
            transition: transform 0.3s ease;
            color: var(--c-text-muted);
            font-size: 13px;
        }

        .faq-item.open .faq-question .fa-chevron-down {
            transform: rotate(180deg);
            color: var(--c-primary);
        }

        .faq-answer {
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--c-text-muted);
            line-height: 1.75;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        /* ===== Trust strip ===== */
        .trust-strip {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            justify-content: center;
            padding: 24px;
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
        }

        .trust-strip-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--c-text-muted);
            font-weight: 500;
            padding: 6px 14px;
            border-radius: 20px;
            background: rgba(47, 125, 91, 0.06);
        }

        .trust-strip-item i {
            color: var(--c-green);
            font-size: 14px;
        }

        /* ===== CTA section ===== */
        .cta-section {
            background: var(--c-primary);
            padding: 56px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 20%, rgba(199, 155, 75, 0.2) 0%, transparent 60%);
            pointer-events: none;
        }

        .cta-section h2 {
            color: #FFFFFF;
            font-size: clamp(22px, 3vw, 30px);
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            color: #F0E6DC;
            max-width: 620px;
            margin: 0 auto 28px;
            font-size: 15px;
            position: relative;
            z-index: 1;
        }

        .cta-section .btn {
            position: relative;
            z-index: 1;
        }

        /* ===== Floating bottom CTA ===== */
        .floating-cta {
            position: fixed;
            bottom: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 950;
            background: #FFFFFF;
            border: 1px solid var(--c-line);
            border-radius: 12px;
            padding: 12px 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            box-shadow: 0 8px 32px rgba(28, 28, 28, 0.16);
            max-width: 560px;
            width: calc(100% - 32px);
            transition: var(--transition-base);
        }

        .floating-cta-text {
            font-size: 14px;
            font-weight: 600;
            color: var(--c-ink);
            flex: 1;
            line-height: 1.4;
        }

        .floating-cta .btn {
            flex-shrink: 0;
            min-height: 40px;
            padding: 8px 18px;
            font-size: 13px;
        }

        .floating-cta-close {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: none;
            background: var(--c-bg);
            color: var(--c-text-muted);
            cursor: pointer;
            font-size: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition-base);
            flex-shrink: 0;
        }

        .floating-cta-close:hover {
            background: rgba(165, 42, 42, 0.1);
            color: var(--c-primary);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--c-ink);
            color: #C9C2B6;
            padding: 48px 0 32px;
            font-size: 14px;
            line-height: 1.7;
        }

        .site-footer h4 {
            color: #F5F0E8;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .site-footer .footer-logo {
            color: #FFFFFF;
            font-weight: 800;
            font-size: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }

        .site-footer .footer-logo .logo-icon {
            width: 32px;
            height: 32px;
            font-size: 14px;
            border-radius: 8px;
            background: var(--c-primary);
            color: #FFFFFF;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .site-footer p {
            color: #A8A29B;
            font-size: 13px;
            line-height: 1.7;
        }

        .site-footer .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .site-footer .footer-links li {
            margin-bottom: 8px;
        }

        .site-footer .footer-links a {
            color: #A8A29B;
            text-decoration: none;
            font-size: 13px;
            transition: color 0.2s ease;
        }

        .site-footer .footer-links a:hover {
            color: #FFFFFF;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            margin-top: 32px;
            text-align: center;
            font-size: 12px;
            color: #8A857E;
        }

        .footer-bottom a {
            color: #B0AAA2;
            text-decoration: none;
        }

        .footer-bottom a:hover {
            color: #FFFFFF;
        }

        /* ===== Responsive ===== */
        @media screen and (max-width: 1200px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        @media screen and (max-width: 1024px) {
            .section {
                padding-top: 56px;
                padding-bottom: 56px;
            }

            .main-nav a {
                padding: 8px 10px;
                font-size: 13px;
            }

            .search-box {
                max-width: 220px;
            }

            .floating-cta {
                max-width: 100%;
                bottom: 0;
                border-radius: 12px 12px 0 0;
                width: 100%;
                padding: 12px 16px;
            }

            body {
                padding-bottom: 72px;
            }

            .compare-col {
                flex: 1 1 220px;
                min-width: 200px;
            }

            .category-entry-card {
                flex: 1 1 180px;
                min-width: 150px;
            }
        }

        @media screen and (max-width: 768px) {
            .section {
                padding-top: 44px;
                padding-bottom: 44px;
            }

            .header-top {
                padding: 10px 0;
            }

            .header-top .container {
                flex-wrap: wrap;
                gap: 10px;
            }

            .search-box {
                order: 3;
                max-width: 100%;
                flex-basis: 100%;
            }

            .version-switch {
                margin-left: auto;
            }

            .nav-toggle {
                display: flex;
                align-items: center;
                gap: 8px;
                font-size: 15px;
                font-weight: 600;
            }

            .nav-bar .container {
                display: flex;
                align-items: center;
                justify-content: space-between;
                padding: 10px 16px;
            }

            .main-nav {
                display: none;
                flex-direction: column;
                gap: 0;
                width: 100%;
                background: #FFFFFF;
                border-top: 1px solid var(--c-line);
                padding: 8px 0;
                margin-top: 8px;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                z-index: 950;
                box-shadow: 0 12px 30px rgba(28, 28, 28, 0.1);
            }

            .main-nav.open {
                display: flex;
            }

            .main-nav a {
                padding: 12px 16px;
                font-size: 14px;
                border-radius: 0;
                border-bottom: 1px solid var(--c-line);
            }

            .main-nav li:last-child a {
                border-bottom: none;
            }

            .nav-bar .container {
                position: relative;
            }

            .hero {
                min-height: 520px;
                padding: 60px 0;
            }

            .hero h1 {
                font-size: 26px;
            }

            .hero-subtitle {
                font-size: 14px;
                line-height: 1.8;
            }

            .hero-cta {
                flex-direction: column;
                align-items: center;
                gap: 12px;
            }

            .hero-cta .btn {
                width: 100%;
                max-width: 320px;
            }

            .data-strip .container {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }

            .data-strip-items {
                flex-wrap: wrap;
                gap: 12px;
            }

            .data-strip-item {
                padding: 0 10px;
                border-left: 1px solid var(--c-line);
            }

            .feature-cards {
                flex-direction: column;
                gap: 16px;
            }

            .steps-grid {
                flex-direction: column;
                gap: 16px;
            }

            .step-item {
                flex: 1 1 auto;
            }

            .news-thumb {
                width: 70px;
                height: 56px;
            }

            .news-item {
                padding: 16px 0;
            }

            .compare-grid {
                flex-direction: column;
                gap: 16px;
            }

            .testimonial-grid {
                flex-direction: column;
                gap: 16px;
            }

            .category-entry-grid {
                flex-direction: column;
                gap: 12px;
            }

            .category-entry-card {
                flex: 1 1 auto;
                min-width: 0;
            }

            .floating-cta {
                flex-direction: column;
                gap: 8px;
                border-radius: 12px 12px 0 0;
                padding: 12px 14px;
                bottom: 0;
            }

            .floating-cta .btn {
                width: 100%;
            }

            .trust-strip {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
                padding: 16px;
            }

            .brand-intro-wrap {
                padding: 20px;
            }

            .site-footer {
                padding: 36px 0 24px;
            }
        }

        @media screen and (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }

            .hero {
                min-height: 480px;
                padding: 48px 0;
            }

            .hero h1 {
                font-size: 22px;
            }

            .hero-play-btn a {
                width: 52px;
                height: 52px;
                font-size: 16px;
            }

            .section {
                padding-top: 36px;
                padding-bottom: 36px;
            }

            .card {
                padding: 18px;
            }

            .category-entry-card {
                padding: 16px;
            }

            .data-strip-item .num {
                font-size: 15px;
            }

            .data-strip-item .label {
                font-size: 11px;
            }

            .news-thumb {
                width: 60px;
                height: 48px;
            }

            .news-title {
                font-size: 14px;
            }

            .news-excerpt {
                font-size: 12px;
            }

            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }

            .footer-bottom {
                font-size: 11px;
            }
        }

/* roulang page: category1 */
:root {
            --c-primary: #A52A2A;
            --c-primary-deep: #7E1F1F;
            --c-accent: #C79B4B;
            --c-bg: #F7F3EC;
            --c-surface: #FFFFFF;
            --c-ink: #1C1C1C;
            --c-text-muted: #6B6B6B;
            --c-line: rgba(28, 28, 28, 0.08);
            --c-green: #2F7D5B;
            --c-cream: #F0EAE0;
            --radius-card: 14px;
            --radius-btn: 8px;
            --radius-badge: 4px;
            --shadow-card: 0 8px 30px rgba(28, 28, 28, 0.06);
            --shadow-card-hover: 0 14px 40px rgba(28, 28, 28, 0.10);
            --shadow-float: 0 12px 40px rgba(165, 42, 42, 0.18);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            --transition-base: all 0.25s ease;
            --container-max: 1200px;
            --section-gap-desktop: 72px;
            --section-gap-mobile: 48px;
            --header-height: auto;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--c-bg);
            color: var(--c-ink);
            font-size: 16px;
            line-height: 1.8;
            margin: 0;
            padding: 0;
            padding-bottom: 76px;
            min-width: 320px;
            font-variant-numeric: tabular-nums;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        a {
            color: var(--c-primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--c-primary-deep);
            text-decoration: none;
        }
        button,
        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 16px;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .section {
            padding-top: var(--section-gap-desktop);
            padding-bottom: var(--section-gap-desktop);
            position: relative;
        }
        .section-sm {
            padding-top: 48px;
            padding-bottom: 48px;
        }
        .section-tight {
            padding-top: 36px;
            padding-bottom: 36px;
        }
        .section-alt {
            background-color: #FBF8F3;
        }
        .section-dark {
            background-color: var(--c-ink);
            color: #F5F0E8;
        }
        .section-dark h2,
        .section-dark h3,
        .section-dark .section-lead {
            color: #F5F0E8;
        }
        .section-dark p {
            color: #C9C2B6;
        }
        .section-lead {
            font-size: 16px;
            color: var(--c-text-muted);
            max-width: 720px;
            margin: 0 auto 40px;
            line-height: 1.8;
        }
        .text-center {
            text-align: center;
        }
        .text-muted {
            color: var(--c-text-muted);
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            font-family: var(--font-sans);
            border: 1px solid transparent;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
            line-height: 1.2;
        }
        .btn-primary {
            background-color: var(--c-primary);
            color: #FFFFFF;
            border-color: var(--c-primary);
        }
        .btn-primary:hover {
            background-color: var(--c-primary-deep);
            border-color: var(--c-primary-deep);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(165, 42, 42, 0.25);
        }
        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--c-primary);
            border: 1px solid var(--c-primary);
        }
        .btn-secondary:hover {
            background-color: rgba(165, 42, 42, 0.08);
            color: var(--c-primary-deep);
            border-color: var(--c-primary-deep);
            transform: translateY(-2px);
        }
        .btn-light {
            background-color: #FFFFFF;
            color: var(--c-primary);
            border-color: #FFFFFF;
        }
        .btn-light:hover {
            background-color: #F5EFE8;
            color: var(--c-primary-deep);
            border-color: #F5EFE8;
            transform: translateY(-2px);
        }
        .btn-sm {
            min-height: 36px;
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 6px;
            gap: 4px;
        }
        .btn-lg {
            min-height: 52px;
            padding: 14px 32px;
            font-size: 16px;
            border-radius: 10px;
        }
        .btn:focus-visible,
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 3px solid var(--c-accent);
            outline-offset: 2px;
        }

        /* ===== Badges ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.5;
            letter-spacing: 0.02em;
            background-color: rgba(199, 155, 75, 0.15);
            color: #8A6A2F;
            text-decoration: none;
        }
        .badge-red {
            background-color: rgba(165, 42, 42, 0.12);
            color: var(--c-primary-deep);
        }
        .badge-green {
            background-color: rgba(47, 125, 91, 0.12);
            color: var(--c-green);
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 900;
            background: #FFFFFF;
            border-bottom: 1px solid var(--c-line);
            box-shadow: 0 2px 12px rgba(28, 28, 28, 0.04);
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            min-height: 64px;
            flex-wrap: wrap;
            padding: 8px 0;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--c-primary);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
        }
        .logo-text {
            font-weight: 800;
            font-size: 19px;
            letter-spacing: 0.02em;
            color: var(--c-ink);
            line-height: 1.2;
        }
        .logo-text span {
            color: var(--c-primary);
        }
        .header-search {
            flex: 0 1 280px;
            min-width: 200px;
            position: relative;
        }
        .header-search input {
            width: 100%;
            min-height: 44px;
            padding: 10px 40px 10px 16px;
            border-radius: 8px;
            border: 1px solid var(--c-line);
            background-color: var(--c-bg);
            font-size: 14px;
            transition: var(--transition-base);
            color: var(--c-ink);
        }
        .header-search input:focus {
            outline: none;
            border-color: var(--c-primary);
            box-shadow: 0 0 0 3px rgba(165, 42, 42, 0.15);
            background-color: #fff;
        }
        .header-search button {
            position: absolute;
            right: 6px;
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            color: var(--c-text-muted);
            font-size: 16px;
            cursor: pointer;
            padding: 8px;
        }
        .header-tools {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .version-select {
            min-height: 44px;
            padding: 8px 12px;
            border-radius: 8px;
            border: 1px solid var(--c-line);
            background-color: #fff;
            color: var(--c-ink);
            font-size: 13px;
            cursor: pointer;
        }
        .lang-switch {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            min-height: 44px;
            padding: 8px 12px;
            border-radius: 8px;
            border: 1px solid var(--c-line);
            background-color: #fff;
            color: var(--c-ink);
            font-size: 13px;
            cursor: pointer;
            text-decoration: none;
            font-weight: 600;
        }
        .lang-switch:hover {
            background-color: var(--c-bg);
            color: var(--c-primary);
        }
        .hamburger {
            display: none;
            background: none;
            border: 1px solid var(--c-line);
            border-radius: 8px;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            color: var(--c-ink);
            font-size: 20px;
            cursor: pointer;
        }
        .main-nav {
            border-top: 1px solid var(--c-line);
            background: #FFFFFF;
        }
        .main-nav-inner {
            display: flex;
            align-items: center;
            gap: 4px;
            overflow-x: auto;
            white-space: nowrap;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            padding: 4px 0;
        }
        .main-nav a {
            display: inline-flex;
            align-items: center;
            min-height: 44px;
            padding: 0 14px;
            font-size: 14px;
            font-weight: 600;
            color: var(--c-ink);
            border-radius: 8px;
            text-decoration: none;
            transition: var(--transition-base);
            flex-shrink: 0;
        }
        .main-nav a:hover {
            background-color: rgba(165, 42, 42, 0.06);
            color: var(--c-primary);
        }
        .main-nav a.active {
            background-color: var(--c-primary);
            color: #fff;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background: #fff;
            border-top: 1px solid var(--c-line);
            padding: 8px 20px 16px;
        }
        .nav-mobile a {
            padding: 12px 0;
            border-bottom: 1px solid var(--c-line);
            font-weight: 600;
            color: var(--c-ink);
            font-size: 15px;
            text-decoration: none;
        }
        .nav-mobile a.active {
            color: var(--c-primary);
        }
        .nav-mobile.open {
            display: flex;
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 13px;
            color: var(--c-text-muted);
            padding: 16px 0 0;
        }
        .breadcrumb a {
            color: var(--c-text-muted);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: var(--c-primary);
        }
        .breadcrumb i {
            font-size: 11px;
            color: var(--c-text-muted);
        }

        /* ===== Page Intro ===== */
        .page-intro {
            padding: 24px 0 20px;
        }
        .page-intro h1 {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 800;
            line-height: 1.2;
            margin: 0 0 10px;
            color: var(--c-ink);
        }
        .page-intro p {
            font-size: 16px;
            color: var(--c-text-muted);
            max-width: 820px;
            margin: 0;
            line-height: 1.8;
        }

        /* ===== Category Layout ===== */
        .category-layout {
            display: grid;
            grid-template-columns: 240px 1fr;
            gap: 32px;
            align-items: start;
            padding-top: 16px;
            padding-bottom: 48px;
        }
        .doc-sidebar {
            position: sticky;
            top: 80px;
            background: #fff;
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 20px;
            max-height: calc(100vh - 100px);
            overflow-y: auto;
        }
        .doc-sidebar h4 {
            font-size: 15px;
            font-weight: 800;
            margin: 0 0 12px;
            color: var(--c-ink);
        }
        .doc-sidebar ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .doc-sidebar li {
            margin: 0;
        }
        .doc-sidebar a {
            display: block;
            padding: 8px 10px;
            font-size: 14px;
            color: var(--c-text-muted);
            border-radius: 6px;
            text-decoration: none;
            transition: var(--transition-base);
            line-height: 1.5;
        }
        .doc-sidebar a:hover,
        .doc-sidebar a.active {
            background-color: rgba(165, 42, 42, 0.08);
            color: var(--c-primary);
            font-weight: 600;
        }
        .sidebar-toggle {
            display: none;
            width: 100%;
            justify-content: space-between;
            align-items: center;
            min-height: 44px;
            padding: 10px 16px;
            background: #fff;
            border: 1px solid var(--c-line);
            border-radius: 8px;
            font-weight: 700;
            cursor: pointer;
            color: var(--c-ink);
            margin-bottom: 16px;
        }
        .sidebar-toggle i {
            transition: transform 0.2s ease;
        }
        .sidebar-toggle.open i {
            transform: rotate(180deg);
        }

        .main-content {
            min-width: 0;
        }

        /* ===== Filter Bar ===== */
        .filter-bar {
            background: #fff;
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: flex-end;
            margin-bottom: 24px;
        }
        .filter-item {
            display: flex;
            flex-direction: column;
            gap: 6px;
            flex: 1 1 180px;
            min-width: 160px;
        }
        .filter-item label {
            font-size: 13px;
            font-weight: 600;
            color: var(--c-ink);
        }
        .filter-item select,
        .filter-item input {
            min-height: 44px;
            padding: 10px 14px;
            border-radius: 8px;
            border: 1px solid var(--c-line);
            background-color: var(--c-bg);
            color: var(--c-ink);
            font-size: 14px;
            transition: var(--transition-base);
        }
        .filter-item select:focus,
        .filter-item input:focus {
            outline: none;
            border-color: var(--c-primary);
            box-shadow: 0 0 0 3px rgba(165, 42, 42, 0.15);
            background-color: #fff;
        }

        /* ===== Result List ===== */
        .result-card {
            background: #fff;
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 20px 24px;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            transition: var(--transition-base);
        }
        .result-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .result-info {
            display: flex;
            flex-direction: column;
            gap: 4px;
            flex: 1 1 200px;
            min-width: 180px;
        }
        .result-info .lottery-type {
            font-weight: 800;
            font-size: 17px;
            color: var(--c-ink);
        }
        .result-info .result-meta {
            font-size: 13px;
            color: var(--c-text-muted);
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .numbers {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
            flex: 0 1 auto;
        }
        .number-ball {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background-color: var(--c-primary);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
            box-shadow: 0 4px 12px rgba(165, 42, 42, 0.20);
            transition: var(--transition-base);
        }
        .number-ball.blue {
            background-color: #2B5C8F;
            box-shadow: 0 4px 12px rgba(43, 92, 143, 0.20);
        }
        .status-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            min-width: 60px;
            justify-content: center;
        }

        /* ===== Section Headings ===== */
        .section-title {
            font-size: 24px;
            font-weight: 800;
            line-height: 1.3;
            margin: 0 0 8px;
            color: var(--c-ink);
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--c-text-muted);
            margin: 0 0 24px;
            line-height: 1.7;
        }

        /* ===== Cards ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            gap: 20px;
        }
        .info-card {
            background: #fff;
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 20px 24px;
            transition: var(--transition-base);
        }
        .info-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .info-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--c-ink);
        }
        .info-card p {
            font-size: 14px;
            color: var(--c-text-muted);
            margin: 0;
            line-height: 1.7;
        }
        .stat-value {
            font-size: 28px;
            font-weight: 800;
            color: var(--c-primary);
            line-height: 1.2;
            margin-bottom: 4px;
            font-variant-numeric: tabular-nums;
        }
        .stat-label {
            font-size: 13px;
            color: var(--c-text-muted);
        }

        /* ===== Calendar ===== */
        .calendar-card {
            background: #fff;
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px;
        }
        .calendar-days {
            display: grid;
            grid-template-columns: repeat(7, 1fr);
            gap: 8px;
            margin-top: 16px;
        }
        .calendar-day {
            background: var(--c-bg);
            border-radius: 8px;
            padding: 12px 8px;
            text-align: center;
            font-size: 14px;
            font-weight: 600;
            color: var(--c-ink);
            border: 1px solid transparent;
            transition: var(--transition-base);
            min-height: 52px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }
        .calendar-day.highlight {
            background: rgba(165, 42, 42, 0.10);
            border-color: var(--c-primary);
            color: var(--c-primary-deep);
        }
        .calendar-day .day-num {
            font-size: 18px;
            font-weight: 800;
        }
        .calendar-day .day-label {
            font-size: 11px;
            color: var(--c-text-muted);
            margin-top: 2px;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: #fff;
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }
        .faq-item summary {
            list-style: none;
            cursor: pointer;
            padding: 18px 24px;
            font-weight: 700;
            font-size: 16px;
            color: var(--c-ink);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: var(--transition-base);
            user-select: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary:hover {
            background-color: var(--c-bg);
        }
        .faq-item summary i {
            color: var(--c-primary);
            transition: transform 0.25s ease;
        }
        .faq-item[open] summary i {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 24px 20px;
            font-size: 15px;
            color: var(--c-text-muted);
            line-height: 1.8;
        }

        /* ===== Subscribe ===== */
        .subscribe-box {
            background: var(--c-ink);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            color: #F5F0E8;
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            align-items: center;
            justify-content: space-between;
        }
        .subscribe-box h3 {
            color: #F5F0E8;
            font-size: 20px;
            font-weight: 800;
            margin: 0 0 6px;
        }
        .subscribe-box p {
            color: #C9C2B6;
            margin: 0;
            font-size: 14px;
        }
        .subscribe-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            min-width: 260px;
        }
        .subscribe-form input {
            flex: 1 1 200px;
            min-height: 44px;
            padding: 10px 16px;
            border-radius: 8px;
            border: 1px solid rgba(255,255,255,0.2);
            background: rgba(255,255,255,0.08);
            color: #F5F0E8;
            font-size: 14px;
            transition: var(--transition-base);
        }
        .subscribe-form input::placeholder {
            color: #C9C2B6;
            opacity: 0.7;
        }
        .subscribe-form input:focus {
            outline: none;
            border-color: var(--c-accent);
            background: rgba(255,255,255,0.12);
        }
        .subscribe-form .btn {
            flex-shrink: 0;
        }

        /* ===== Disclaimer ===== */
        .disclaimer-bar {
            background: rgba(165, 42, 42, 0.06);
            border-left: 4px solid var(--c-primary);
            border-radius: 8px;
            padding: 16px 20px;
            font-size: 14px;
            color: var(--c-text-muted);
            line-height: 1.8;
            margin-top: 24px;
        }
        .disclaimer-bar i {
            color: var(--c-primary);
            margin-right: 8px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--c-ink);
            color: #C9C2B6;
            padding: 56px 0 28px;
            margin-top: 64px;
        }
        .site-footer .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .site-footer .footer-logo span {
            color: #F5F0E8;
            font-weight: 800;
            font-size: 18px;
        }
        .site-footer p {
            font-size: 14px;
            line-height: 1.8;
            margin: 0 0 16px;
            color: #C9C2B6;
        }
        .site-footer h4 {
            color: #F5F0E8;
            font-size: 15px;
            font-weight: 700;
            margin: 0 0 16px;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #C9C2B6;
            font-size: 14px;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        .footer-links a:hover {
            color: #F5F0E8;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            margin-top: 40px;
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: 4px;
            font-size: 13px;
            color: #C9C2B6;
        }
        .footer-bottom a {
            color: #C9C2B6;
            text-decoration: none;
        }
        .footer-bottom a:hover {
            color: #F5F0E8;
        }

        /* ===== Fixed bottom CTA ===== */
        .fixed-bottom-cta {
            position: fixed;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: min(720px, calc(100% - 24px));
            background: #fff;
            border: 1px solid var(--c-line);
            border-radius: 12px 12px 0 0;
            box-shadow: 0 -4px 24px rgba(28,28,28,0.10);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 12px 20px;
            z-index: 950;
        }
        .fixed-bottom-cta p {
            margin: 0;
            font-size: 14px;
            font-weight: 600;
            color: var(--c-ink);
        }
        .fixed-bottom-cta .btn {
            flex-shrink: 0;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .category-layout {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .doc-sidebar {
                position: static;
                max-height: none;
                display: none;
            }
            .doc-sidebar.open {
                display: block;
                margin-bottom: 16px;
            }
            .sidebar-toggle {
                display: flex;
            }
            .header-search {
                flex: 1 1 180px;
            }
            .header-top {
                gap: 10px;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding-top: var(--section-gap-mobile);
                padding-bottom: var(--section-gap-mobile);
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .header-top {
                flex-wrap: wrap;
                min-height: auto;
                padding: 10px 0;
            }
            .header-search {
                order: 3;
                flex-basis: 100%;
                min-width: 100%;
                margin-top: 4px;
            }
            .header-tools {
                gap: 6px;
            }
            .lang-switch span.lang-label {
                display: none;
            }
            .hamburger {
                display: inline-flex;
            }
            .main-nav-inner {
                display: none;
            }
            .nav-mobile {
                display: none;
            }
            .nav-mobile.open {
                display: flex;
            }
            .result-card {
                flex-direction: column;
                align-items: flex-start;
            }
            .numbers {
                width: 100%;
                justify-content: flex-start;
            }
            .filter-bar {
                flex-direction: column;
                align-items: stretch;
            }
            .filter-item {
                flex: 1 1 auto;
            }
            .subscribe-box {
                flex-direction: column;
                align-items: flex-start;
            }
            .subscribe-form {
                width: 100%;
            }
            .fixed-bottom-cta {
                width: 100%;
                border-radius: 0;
                left: 0;
                transform: none;
                padding: 10px 16px;
            }
            body {
                padding-bottom: 86px;
            }
            .calendar-days {
                gap: 4px;
            }
            .calendar-day {
                padding: 8px 4px;
                min-height: 44px;
            }
            .calendar-day .day-num {
                font-size: 15px;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 520px) {
            .logo-text {
                font-size: 17px;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
            }
            .version-select {
                padding: 8px 6px;
                font-size: 11px;
            }
            .number-ball {
                width: 32px;
                height: 32px;
                font-size: 13px;
            }
            .page-intro h1 {
                font-size: 26px;
            }
            .section-title {
                font-size: 20px;
            }
            .result-card {
                padding: 16px;
            }
            .faq-item summary {
                padding: 14px 16px;
                font-size: 15px;
            }
            .faq-item .faq-answer {
                padding: 0 16px 16px;
                font-size: 14px;
            }
        }

/* roulang page: category3 */
:root {
            --c-primary: #A52A2A;
            --c-primary-deep: #7E1F1F;
            --c-accent: #C79B4B;
            --c-bg: #F7F3EC;
            --c-surface: #FFFFFF;
            --c-ink: #1C1C1C;
            --c-text-muted: #6B6B6B;
            --c-line: rgba(28, 28, 28, 0.08);
            --c-green: #2F7D5B;
            --c-cream: #F0EAE0;
            --radius-card: 14px;
            --radius-btn: 8px;
            --radius-badge: 4px;
            --shadow-card: 0 8px 30px rgba(28, 28, 28, 0.06);
            --shadow-card-hover: 0 14px 40px rgba(28, 28, 28, 0.10);
            --shadow-float: 0 12px 40px rgba(165, 42, 42, 0.18);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            --transition-base: all 0.25s ease;
            --container-max: 1200px;
            --section-gap-desktop: 72px;
            --section-gap-mobile: 48px;
            --header-height: auto;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--c-bg);
            color: var(--c-ink);
            font-size: 16px;
            line-height: 1.8;
            margin: 0;
            padding: 0;
            padding-bottom: 76px;
            min-width: 320px;
            font-variant-numeric: tabular-nums;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        a {
            color: var(--c-primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--c-primary-deep);
            text-decoration: none;
        }
        button, input, select, textarea {
            font-family: var(--font-sans);
            font-size: 16px;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .section {
            padding-top: 48px;
            padding-bottom: 48px;
            position: relative;
        }
        .section-sm {
            padding-top: 32px;
            padding-bottom: 32px;
        }
        .section-alt {
            background-color: #FBF8F3;
        }
        .section-dark {
            background-color: var(--c-ink);
            color: #F5F0E8;
        }
        .section-dark h2, .section-dark h3, .section-dark .section-lead {
            color: #F5F0E8;
        }
        .section-dark p {
            color: #C9C2B6;
        }
        .text-center {
            text-align: center;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            font-family: var(--font-sans);
            border: 1px solid transparent;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
            line-height: 1.2;
        }
        .btn-primary {
            background-color: var(--c-primary);
            color: #FFFFFF;
            border-color: var(--c-primary);
        }
        .btn-primary:hover {
            background-color: var(--c-primary-deep);
            border-color: var(--c-primary-deep);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(165, 42, 42, 0.25);
        }
        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--c-primary);
            border: 1px solid var(--c-primary);
        }
        .btn-secondary:hover {
            background-color: rgba(165, 42, 42, 0.08);
            color: var(--c-primary-deep);
            border-color: var(--c-primary-deep);
            transform: translateY(-2px);
        }
        .btn-sm {
            min-height: 36px;
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 6px;
            gap: 4px;
        }
        .btn-block {
            width: 100%;
        }

        /* Badges */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.5;
            letter-spacing: 0.02em;
            background-color: rgba(199, 155, 75, 0.15);
            color: #8A6A2F;
            text-decoration: none;
        }
        .badge-red {
            background-color: rgba(165, 42, 42, 0.12);
            color: var(--c-primary-deep);
        }
        .badge-green {
            background-color: rgba(47, 125, 91, 0.12);
            color: var(--c-green);
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 900;
            background: #FFFFFF;
            border-bottom: 1px solid var(--c-line);
            box-shadow: 0 2px 12px rgba(28, 28, 28, 0.06);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            min-height: 64px;
            flex-wrap: wrap;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 18px;
            color: var(--c-ink);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .nav-logo:hover {
            color: var(--c-primary);
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--c-primary);
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            flex-shrink: 0;
        }
        .nav-search {
            display: flex;
            align-items: center;
            gap: 0;
            background: var(--c-bg);
            border: 1px solid var(--c-line);
            border-radius: var(--radius-btn);
            padding: 0 12px;
            min-height: 40px;
            width: 240px;
            flex-shrink: 0;
        }
        .nav-search input {
            border: none;
            background: transparent;
            outline: none;
            flex: 1;
            min-width: 0;
            font-size: 14px;
            color: var(--c-ink);
            padding: 8px 0;
        }
        .nav-search input::placeholder {
            color: var(--c-text-muted);
        }
        .nav-search i {
            color: var(--c-text-muted);
            font-size: 14px;
        }
        .nav-search:focus-within {
            border-color: var(--c-primary);
            box-shadow: 0 0 0 3px rgba(165, 42, 42, 0.15);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .nav-version {
            display: flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            color: var(--c-text-muted);
            border: 1px solid var(--c-line);
            border-radius: 6px;
            padding: 4px 10px;
            background: #FFFFFF;
            cursor: pointer;
            transition: var(--transition-base);
        }
        .nav-version:hover {
            border-color: var(--c-primary);
            color: var(--c-primary);
        }
        .nav-version i {
            font-size: 10px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid var(--c-line);
            border-radius: 6px;
            min-height: 40px;
            padding: 0 12px;
            color: var(--c-ink);
            cursor: pointer;
            align-items: center;
            gap: 6px;
            font-size: 15px;
        }
        .primary-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
            padding: 4px 0 8px;
        }
        .primary-nav a {
            display: inline-flex;
            align-items: center;
            padding: 6px 12px;
            border-radius: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--c-ink);
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .primary-nav a:hover {
            background: rgba(165, 42, 42, 0.06);
            color: var(--c-primary);
        }
        .primary-nav a.active {
            background: var(--c-primary);
            color: #FFFFFF;
        }
        .mobile-menu {
            display: none;
            background: #FFFFFF;
            border-top: 1px solid var(--c-line);
            padding: 12px 0;
        }
        .mobile-menu a {
            display: block;
            padding: 10px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--c-ink);
            border-bottom: 1px solid var(--c-line);
        }
        .mobile-menu a:last-child {
            border-bottom: none;
        }
        .mobile-menu a:hover {
            color: var(--c-primary);
            background: rgba(165, 42, 42, 0.04);
        }
        .mobile-menu a.active {
            color: var(--c-primary);
            background: rgba(165, 42, 42, 0.08);
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 13px;
            color: var(--c-text-muted);
            padding: 16px 0 8px;
        }
        .breadcrumb a {
            color: var(--c-text-muted);
        }
        .breadcrumb a:hover {
            color: var(--c-primary);
        }
        .breadcrumb .sep {
            color: #C9C2B6;
            font-size: 10px;
        }
        .breadcrumb .current {
            color: var(--c-ink);
            font-weight: 600;
        }

        /* Page Header */
        .page-header {
            padding: 16px 0 24px;
        }
        .page-header h1 {
            font-size: clamp(28px, 4vw, 36px);
            font-weight: 800;
            line-height: 1.25;
            color: var(--c-ink);
            margin: 0 0 10px;
        }
        .page-header p {
            font-size: 16px;
            color: var(--c-text-muted);
            max-width: 720px;
            margin: 0;
            line-height: 1.8;
        }

        /* Doc Sidebar */
        .doc-sidebar {
            position: sticky;
            top: 80px;
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            padding: 20px 16px;
            box-shadow: var(--shadow-card);
            margin-bottom: 24px;
        }
        .doc-sidebar h3 {
            font-size: 14px;
            font-weight: 700;
            color: var(--c-text-muted);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin: 0 0 12px;
            padding: 0 8px;
        }
        .doc-sidebar ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .doc-sidebar li {
            margin: 0;
        }
        .doc-sidebar a {
            display: block;
            padding: 8px 12px;
            border-radius: 6px;
            font-size: 14px;
            color: var(--c-ink);
            transition: var(--transition-base);
        }
        .doc-sidebar a:hover {
            background: rgba(165, 42, 42, 0.06);
            color: var(--c-primary);
        }
        .doc-sidebar a.active {
            background: rgba(165, 42, 42, 0.08);
            color: var(--c-primary);
            font-weight: 600;
        }
        .sidebar-collapse-toggle {
            display: none;
            width: 100%;
            text-align: left;
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: var(--radius-btn);
            padding: 12px 16px;
            font-weight: 600;
            font-size: 14px;
            color: var(--c-ink);
            cursor: pointer;
            margin-bottom: 16px;
            align-items: center;
            justify-content: space-between;
        }
        .sidebar-collapse-toggle i {
            transition: transform 0.3s ease;
        }
        .sidebar-collapse-toggle.open i {
            transform: rotate(180deg);
        }

        /* Filter Bar */
        .filter-bar {
            display: flex;
            align-items: flex-end;
            gap: 12px;
            flex-wrap: wrap;
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            padding: 20px;
            box-shadow: var(--shadow-card);
        }
        .filter-group {
            display: flex;
            flex-direction: column;
            gap: 4px;
            flex: 1;
            min-width: 140px;
        }
        .filter-group label {
            font-size: 13px;
            font-weight: 600;
            color: var(--c-text-muted);
        }
        .filter-group select,
        .filter-group input {
            min-height: 44px;
            border: 1px solid var(--c-line);
            border-radius: var(--radius-btn);
            padding: 8px 12px;
            background: #FFFFFF;
            color: var(--c-ink);
            font-size: 14px;
            outline: none;
            transition: var(--transition-base);
            width: 100%;
        }
        .filter-group select:focus,
        .filter-group input:focus {
            border-color: var(--c-primary);
            box-shadow: 0 0 0 3px rgba(165, 42, 42, 0.15);
        }
        .filter-actions {
            display: flex;
            gap: 8px;
            flex-shrink: 0;
        }

        /* Chart Cards */
        .chart-card {
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            padding: 20px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .chart-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }
        .chart-card-header {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 12px;
            margin-bottom: 14px;
        }
        .chart-card-header h3 {
            font-size: 18px;
            font-weight: 700;
            margin: 0;
            color: var(--c-ink);
            line-height: 1.3;
        }
        .chart-card-header .badge {
            flex-shrink: 0;
        }
        .chart-card-meta {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--c-text-muted);
            margin-bottom: 12px;
        }
        .chart-card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .chart-body {
            flex: 1;
            min-height: 140px;
            background: #FDFBF8;
            border: 1px solid var(--c-line);
            border-radius: 8px;
            padding: 16px;
            overflow: hidden;
            position: relative;
        }
        .chart-card-footer {
            margin-top: 14px;
            font-size: 13px;
            color: var(--c-text-muted);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
        }
        .chart-card-footer a {
            font-weight: 600;
            font-size: 13px;
        }

        /* Bar Chart CSS */
        .bar-chart {
            display: flex;
            align-items: flex-end;
            gap: 6px;
            height: 120px;
            padding-top: 8px;
        }
        .bar-item {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            min-width: 0;
        }
        .bar-item .bar {
            width: 100%;
            max-width: 32px;
            border-radius: 4px 4px 0 0;
            background: var(--c-primary);
            transition: var(--transition-base);
            min-height: 4px;
        }
        .bar-item .bar.hot {
            background: var(--c-accent);
        }
        .bar-item .bar.cold {
            background: #C9C2B6;
        }
        .bar-item .bar-label {
            font-size: 11px;
            color: var(--c-text-muted);
            font-weight: 600;
            white-space: nowrap;
        }
        .bar-item:hover .bar {
            background: var(--c-primary-deep);
        }

        /* Dot Matrix */
        .dot-matrix {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(28px, 1fr));
            gap: 6px;
        }
        .dot-cell {
            aspect-ratio: 1;
            border-radius: 4px;
            background: #E8E2D8;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 11px;
            font-weight: 700;
            color: var(--c-ink);
            transition: var(--transition-base);
        }
        .dot-cell.hot {
            background: rgba(199, 155, 75, 0.7);
            color: #FFFFFF;
        }
        .dot-cell.cold {
            background: #D5CFC4;
            color: var(--c-text-muted);
        }
        .dot-cell.mid {
            background: rgba(165, 42, 42, 0.65);
            color: #FFFFFF;
        }

        /* SVG Trend */
        .trend-svg {
            width: 100%;
            height: auto;
            display: block;
        }
        .trend-svg .grid-line {
            stroke: rgba(28, 28, 28, 0.08);
            stroke-width: 1;
        }
        .trend-svg .trend-line {
            fill: none;
            stroke: var(--c-primary);
            stroke-width: 3;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        .trend-svg .trend-line.secondary {
            stroke: var(--c-accent);
            stroke-width: 2;
        }
        .trend-svg .trend-dot {
            fill: var(--c-primary);
            stroke: #FFFFFF;
            stroke-width: 2;
        }
        .trend-svg .trend-dot.secondary {
            fill: var(--c-accent);
        }

        /* Featured Items */
        .featured-card {
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            padding: 16px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            display: flex;
            gap: 16px;
            align-items: flex-start;
            height: 100%;
        }
        .featured-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }
        .featured-card img {
            width: 80px;
            height: 80px;
            object-fit: cover;
            border-radius: 10px;
            flex-shrink: 0;
        }
        .featured-card-content h4 {
            font-size: 16px;
            font-weight: 700;
            margin: 0 0 6px;
            color: var(--c-ink);
            line-height: 1.3;
        }
        .featured-card-content p {
            font-size: 13px;
            color: var(--c-text-muted);
            margin: 0 0 8px;
            line-height: 1.6;
        }
        .featured-card-content .badge {
            font-size: 11px;
        }

        /* Data Summary */
        .data-summary-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 16px;
        }
        .summary-card {
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            padding: 18px 16px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }
        .summary-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }
        .summary-value {
            font-size: 28px;
            font-weight: 800;
            color: var(--c-primary);
            line-height: 1.2;
            margin-bottom: 4px;
            font-variant-numeric: tabular-nums;
        }
        .summary-value.accent {
            color: var(--c-accent);
        }
        .summary-label {
            font-size: 13px;
            color: var(--c-text-muted);
            font-weight: 600;
        }

        /* Subscribe Box */
        .subscribe-box {
            background: var(--c-ink);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            justify-content: space-between;
        }
        .subscribe-box .text {
            flex: 1;
            min-width: 200px;
        }
        .subscribe-box h3 {
            font-size: 20px;
            font-weight: 700;
            color: #F5F0E8;
            margin: 0 0 6px;
        }
        .subscribe-box p {
            font-size: 14px;
            color: #C9C2B6;
            margin: 0;
        }
        .subscribe-box .form-row {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .subscribe-box input {
            min-height: 44px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-btn);
            padding: 8px 14px;
            background: rgba(255, 255, 255, 0.08);
            color: #FFFFFF;
            font-size: 14px;
            outline: none;
            width: 220px;
        }
        .subscribe-box input::placeholder {
            color: #9A9388;
        }
        .subscribe-box input:focus {
            border-color: var(--c-accent);
            box-shadow: 0 0 0 3px rgba(199, 155, 75, 0.25);
        }

        /* Compliance Note */
        .compliance-note {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            background: rgba(47, 125, 91, 0.08);
            border: 1px solid rgba(47, 125, 91, 0.2);
            border-radius: var(--radius-card);
            padding: 16px 20px;
            font-size: 14px;
            color: var(--c-text-muted);
            line-height: 1.7;
        }
        .compliance-note i {
            color: var(--c-green);
            font-size: 18px;
            margin-top: 4px;
            flex-shrink: 0;
        }

        /* FAQ Accordion */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .faq-item {
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: var(--transition-base);
        }
        .faq-item details {
            width: 100%;
        }
        .faq-item summary {
            list-style: none;
            cursor: pointer;
            padding: 16px 20px;
            font-weight: 700;
            font-size: 15px;
            color: var(--c-ink);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: var(--transition-base);
            user-select: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary i {
            color: var(--c-primary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
            font-size: 14px;
        }
        .faq-item details[open] summary i {
            transform: rotate(180deg);
        }
        .faq-item details[open] summary {
            color: var(--c-primary);
            background: rgba(165, 42, 42, 0.04);
        }
        .faq-item .faq-answer {
            padding: 0 20px 16px;
            font-size: 14px;
            color: var(--c-text-muted);
            line-height: 1.7;
        }

        /* Footer */
        .site-footer {
            background: var(--c-ink);
            color: #F5F0E8;
            padding: 48px 0 24px;
            margin-top: 40px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 800;
            color: #F5F0E8;
            margin-bottom: 12px;
        }
        .footer-logo .logo-icon {
            width: 32px;
            height: 32px;
            border-radius: 6px;
            background: var(--c-primary);
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }
        .site-footer p {
            font-size: 14px;
            color: #C9C2B6;
            line-height: 1.7;
            margin-bottom: 0;
        }
        .site-footer h4 {
            font-size: 14px;
            font-weight: 700;
            color: #F5F0E8;
            margin: 0 0 14px;
            letter-spacing: 0.04em;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin: 0 0 8px;
        }
        .footer-links a {
            color: #C9C2B6;
            font-size: 14px;
            transition: var(--transition-base);
        }
        .footer-links a:hover {
            color: var(--c-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 32px;
            padding-top: 16px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 4px;
            font-size: 13px;
            color: #9A9388;
        }
        .footer-bottom a {
            color: #C9C2B6;
            font-size: 13px;
        }
        .footer-bottom a:hover {
            color: var(--c-accent);
        }

        /* Bottom CTA Bar */
        .bottom-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 800;
            background: #FFFFFF;
            border-top: 1px solid var(--c-line);
            box-shadow: 0 -4px 20px rgba(28, 28, 28, 0.1);
            padding: 10px 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .bottom-cta-bar .text {
            font-size: 14px;
            font-weight: 600;
            color: var(--c-ink);
        }
        .bottom-cta-bar .text span {
            color: var(--c-primary);
        }

        /* Focus */
        :focus-visible {
            outline: 3px solid var(--c-accent);
            outline-offset: 2px;
        }

        /* Responsive */
        @media screen and (max-width: 1024px) {
            .nav-search {
                width: 180px;
            }
            .primary-nav a {
                padding: 6px 8px;
                font-size: 13px;
            }
        }
        @media screen and (max-width: 768px) {
            .header-inner {
                flex-wrap: nowrap;
            }
            .nav-search {
                display: none;
            }
            .nav-version {
                font-size: 12px;
                padding: 4px 8px;
            }
            .nav-toggle {
                display: flex;
            }
            .primary-nav {
                display: none;
            }
            .mobile-menu {
                display: block;
            }
            .mobile-menu.hidden {
                display: none;
            }
            .section {
                padding-top: 32px;
                padding-bottom: 32px;
            }
            .doc-sidebar {
                position: static;
                top: auto;
                margin-bottom: 16px;
            }
            .sidebar-collapse-toggle {
                display: flex;
            }
            .doc-sidebar .sidebar-body {
                display: none;
            }
            .doc-sidebar .sidebar-body.open {
                display: block;
            }
            .filter-bar {
                flex-direction: column;
                align-items: stretch;
            }
            .filter-actions {
                flex-direction: column;
            }
            .filter-actions .btn {
                width: 100%;
            }
            .subscribe-box {
                flex-direction: column;
                align-items: stretch;
            }
            .subscribe-box .form-row {
                flex-direction: column;
            }
            .subscribe-box input {
                width: 100%;
            }
            .bottom-cta-bar {
                padding: 8px 12px;
                gap: 8px;
            }
            .bottom-cta-bar .text {
                font-size: 12px;
            }
            .bottom-cta-bar .btn {
                min-height: 36px;
                padding: 8px 14px;
                font-size: 13px;
            }
            .featured-card {
                flex-direction: row;
            }
            .featured-card img {
                width: 60px;
                height: 60px;
            }
            .chart-card {
                padding: 16px;
            }
            .chart-body {
                min-height: 110px;
                padding: 10px;
            }
            .data-summary-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media screen and (max-width: 520px) {
            .header-inner {
                gap: 8px;
            }
            .nav-logo {
                font-size: 15px;
                gap: 6px;
            }
            .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 12px;
                border-radius: 6px;
            }
            .nav-version {
                display: none;
            }
            .data-summary-grid {
                grid-template-columns: 1fr;
            }
            .featured-card {
                flex-direction: column;
            }
            .featured-card img {
                width: 100%;
                height: 120px;
                object-fit: cover;
            }
            .chart-card-header {
                flex-direction: column;
                gap: 6px;
            }
            .chart-card-header .badge {
                align-self: flex-start;
            }
            .bar-chart {
                gap: 3px;
            }
            .bar-item .bar {
                max-width: 24px;
            }
            .bar-item .bar-label {
                font-size: 9px;
            }
            .page-header h1 {
                font-size: 26px;
            }
        }

/* roulang page: category2 */
:root {
            --c-primary: #A52A2A;
            --c-primary-deep: #7E1F1F;
            --c-accent: #C79B4B;
            --c-bg: #F7F3EC;
            --c-surface: #FFFFFF;
            --c-ink: #1C1C1C;
            --c-text-muted: #6B6B6B;
            --c-line: rgba(28, 28, 28, 0.08);
            --c-green: #2F7D5B;
            --c-cream: #F0EAE0;
            --radius-card: 14px;
            --radius-btn: 8px;
            --radius-badge: 4px;
            --shadow-card: 0 8px 30px rgba(28, 28, 28, 0.06);
            --shadow-card-hover: 0 14px 40px rgba(28, 28, 28, 0.10);
            --shadow-float: 0 12px 40px rgba(165, 42, 42, 0.18);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            --transition-base: all 0.25s ease;
            --container-max: 1200px;
            --section-gap-desktop: 64px;
            --section-gap-mobile: 44px;
            --header-height: auto;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--c-bg);
            color: var(--c-ink);
            font-size: 16px;
            line-height: 1.8;
            margin: 0;
            padding: 0;
            padding-bottom: 76px;
            min-width: 320px;
            font-variant-numeric: tabular-nums;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        a {
            color: var(--c-primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--c-primary-deep);
            text-decoration: none;
        }
        button,
        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 16px;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .section {
            padding-top: var(--section-gap-desktop);
            padding-bottom: var(--section-gap-desktop);
            position: relative;
        }
        .section-sm {
            padding-top: 40px;
            padding-bottom: 40px;
        }
        .section-tight {
            padding-top: 28px;
            padding-bottom: 28px;
        }
        .section-alt {
            background-color: #FBF8F3;
        }
        .section-dark {
            background-color: var(--c-ink);
            color: #F5F0E8;
        }
        .section-dark h2,
        .section-dark h3,
        .section-dark .section-lead {
            color: #F5F0E8;
        }
        .section-dark p {
            color: #C9C2B6;
        }
        .section-lead {
            font-size: 16px;
            color: var(--c-text-muted);
            max-width: 720px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }
        .text-center {
            text-align: center;
        }
        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            font-family: var(--font-sans);
            border: 1px solid transparent;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
            line-height: 1.2;
        }
        .btn-primary {
            background-color: var(--c-primary);
            color: #FFFFFF;
            border-color: var(--c-primary);
        }
        .btn-primary:hover {
            background-color: var(--c-primary-deep);
            border-color: var(--c-primary-deep);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(165, 42, 42, 0.25);
        }
        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--c-primary);
            border: 1px solid var(--c-primary);
        }
        .btn-secondary:hover {
            background-color: rgba(165, 42, 42, 0.08);
            color: var(--c-primary-deep);
            border-color: var(--c-primary-deep);
            transform: translateY(-2px);
        }
        .btn-light {
            background-color: #FFFFFF;
            color: var(--c-primary);
            border-color: #FFFFFF;
        }
        .btn-light:hover {
            background-color: #F5EFE8;
            color: var(--c-primary-deep);
            border-color: #F5EFE8;
            transform: translateY(-2px);
        }
        .btn-sm {
            min-height: 36px;
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 6px;
            gap: 4px;
        }
        .btn-lg {
            min-height: 52px;
            padding: 14px 32px;
            font-size: 16px;
            border-radius: 10px;
        }
        /* Badges */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.5;
            letter-spacing: 0.02em;
            background-color: rgba(199, 155, 75, 0.15);
            color: #8A6A2F;
            text-decoration: none;
        }
        .badge-red {
            background-color: rgba(165, 42, 42, 0.12);
            color: var(--c-primary-deep);
        }
        .badge-green {
            background-color: rgba(47, 125, 91, 0.12);
            color: var(--c-green);
        }
        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 900;
            background: #FFFFFF;
            border-bottom: 1px solid var(--c-line);
            box-shadow: 0 2px 12px rgba(28, 28, 28, 0.05);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 16px;
            flex-wrap: wrap;
            padding: 10px 0;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: var(--c-ink);
            text-decoration: none;
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .logo:hover {
            color: var(--c-primary);
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--c-primary);
            color: #FFFFFF;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }
        .nav-links a {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 8px 12px;
            font-size: 14px;
            font-weight: 600;
            color: #3A3A3A;
            border-radius: 6px;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .nav-links a:hover {
            background-color: rgba(165, 42, 42, 0.06);
            color: var(--c-primary);
        }
        .nav-links a.active {
            background-color: rgba(165, 42, 42, 0.12);
            color: var(--c-primary);
            font-weight: 700;
        }
        .header-search {
            display: flex;
            align-items: center;
            gap: 6px;
            background: var(--c-bg);
            border: 1px solid var(--c-line);
            border-radius: 8px;
            padding: 0 12px;
            min-height: 40px;
            min-width: 220px;
            max-width: 280px;
            flex: 1 1 auto;
        }
        .header-search i {
            color: var(--c-text-muted);
            font-size: 14px;
        }
        .header-search input {
            border: none;
            background: transparent;
            outline: none;
            width: 100%;
            font-size: 14px;
            color: var(--c-ink);
            padding: 8px 0;
        }
        .header-search input:focus {
            box-shadow: none;
        }
        .lang-switch {
            display: flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 600;
            color: var(--c-text-muted);
        }
        .lang-switch .active-lang {
            color: var(--c-primary);
            font-weight: 700;
        }
        .lang-switch button {
            background: none;
            border: 1px solid var(--c-line);
            border-radius: 6px;
            padding: 6px 10px;
            cursor: pointer;
            font-size: 12px;
            font-weight: 600;
            color: var(--c-text-muted);
            transition: var(--transition-base);
        }
        .lang-switch button:hover {
            border-color: var(--c-primary);
            color: var(--c-primary);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid var(--c-line);
            border-radius: 8px;
            padding: 8px 12px;
            cursor: pointer;
            font-size: 18px;
            color: var(--c-ink);
            align-items: center;
            gap: 6px;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            gap: 4px;
            padding: 12px 0;
            border-top: 1px solid var(--c-line);
        }
        .mobile-nav a {
            padding: 10px 12px;
            font-size: 15px;
            font-weight: 600;
            color: #3A3A3A;
            border-radius: 6px;
            transition: var(--transition-base);
        }
        .mobile-nav a:hover {
            background-color: rgba(165, 42, 42, 0.06);
            color: var(--c-primary);
        }
        .mobile-nav a.active {
            color: var(--c-primary);
            font-weight: 700;
            background-color: rgba(165, 42, 42, 0.12);
        }
        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--c-text-muted);
            margin-bottom: 12px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--c-text-muted);
            transition: var(--transition-base);
        }
        .breadcrumb a:hover {
            color: var(--c-primary);
        }
        .breadcrumb .sep {
            color: #B8B0A3;
            font-size: 12px;
        }
        .breadcrumb .current {
            color: var(--c-ink);
            font-weight: 600;
        }
        /* Page Header */
        .page-header {
            margin-bottom: 28px;
        }
        .page-header h1 {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 800;
            line-height: 1.2;
            margin: 0 0 12px 0;
            color: var(--c-ink);
        }
        .page-header .page-desc {
            font-size: 16px;
            color: var(--c-text-muted);
            max-width: 760px;
            line-height: 1.8;
            margin: 0;
        }
        /* Doc Sidebar */
        .doc-sidebar {
            position: sticky;
            top: 80px;
            max-height: calc(100vh - 100px);
            overflow-y: auto;
            padding-right: 8px;
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            padding: 20px;
            box-shadow: var(--shadow-card);
        }
        .doc-sidebar h3 {
            font-size: 16px;
            font-weight: 700;
            margin: 0 0 12px;
            color: var(--c-ink);
        }
        .doc-sidebar ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .doc-sidebar ul li {
            margin-bottom: 4px;
        }
        .doc-sidebar ul li a {
            display: block;
            padding: 8px 12px;
            font-size: 14px;
            font-weight: 500;
            color: #4A4A4A;
            border-radius: 6px;
            transition: var(--transition-base);
            border-left: 3px solid transparent;
        }
        .doc-sidebar ul li a:hover {
            background-color: rgba(165, 42, 42, 0.06);
            color: var(--c-primary);
            border-left-color: var(--c-primary);
        }
        .doc-sidebar .sidebar-group + .sidebar-group {
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid var(--c-line);
        }
        .doc-sidebar .sidebar-group-title {
            font-size: 13px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            color: var(--c-text-muted);
            margin-bottom: 8px;
        }
        /* Filter Bar */
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            padding: 16px 18px;
            margin-bottom: 24px;
            box-shadow: var(--shadow-card);
        }
        .filter-bar label {
            font-size: 14px;
            font-weight: 600;
            color: var(--c-text-muted);
            margin-right: 6px;
        }
        .filter-bar select,
        .filter-bar input[type="text"] {
            min-height: 40px;
            border: 1px solid var(--c-line);
            border-radius: var(--radius-btn);
            background: var(--c-bg);
            padding: 0 12px;
            font-size: 14px;
            color: var(--c-ink);
            outline: none;
            transition: var(--transition-base);
            min-width: 140px;
        }
        .filter-bar select:focus,
        .filter-bar input[type="text"]:focus {
            border-color: var(--c-primary);
            box-shadow: 0 0 0 3px rgba(165, 42, 42, 0.15);
        }
        .filter-bar .filter-btn {
            min-height: 40px;
            padding: 0 18px;
            background: var(--c-primary);
            color: #FFF;
            border: none;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 14px;
            cursor: pointer;
            transition: var(--transition-base);
        }
        .filter-bar .filter-btn:hover {
            background: var(--c-primary-deep);
        }
        /* Analysis Cards */
        .analysis-card {
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            padding: 20px 22px;
            margin-bottom: 18px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }
        .analysis-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(165, 42, 42, 0.2);
        }
        .analysis-card-top {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }
        .analysis-card-top .league-badge {
            background: rgba(199, 155, 75, 0.15);
            color: #8A6A2F;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.02em;
        }
        .analysis-card-top .match-time {
            font-size: 13px;
            color: var(--c-text-muted);
            font-variant-numeric: tabular-nums;
        }
        .analysis-card-top .status-tag {
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 4px;
        }
        .status-tag.hot {
            background: rgba(165, 42, 42, 0.12);
            color: var(--c-primary);
        }
        .status-tag.stable {
            background: rgba(47, 125, 91, 0.12);
            color: var(--c-green);
        }
        .analysis-card-match {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 12px;
        }
        .analysis-card-match .team {
            font-size: 18px;
            font-weight: 800;
            color: var(--c-ink);
        }
        .analysis-card-match .vs {
            font-size: 14px;
            font-weight: 700;
            color: var(--c-text-muted);
            background: var(--c-bg);
            padding: 4px 14px;
            border-radius: 20px;
            letter-spacing: 0.06em;
        }
        .analysis-card-data {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            gap: 10px;
            margin-bottom: 12px;
            padding: 14px;
            background: var(--c-bg);
            border-radius: 10px;
        }
        .analysis-card-data .data-item {
            font-size: 13px;
            color: var(--c-text-muted);
        }
        .analysis-card-data .data-item strong {
            display: block;
            font-size: 15px;
            color: var(--c-ink);
            font-weight: 700;
            font-variant-numeric: tabular-nums;
        }
        .analysis-card-summary {
            font-size: 14px;
            color: #3A3A3A;
            line-height: 1.7;
            margin: 0 0 12px;
        }
        .analysis-card-footer {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            border-top: 1px solid var(--c-line);
            padding-top: 12px;
        }
        .analysis-card-footer .injury-tag {
            font-size: 12px;
            color: var(--c-primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .analysis-card-footer .link-more {
            font-size: 13px;
            font-weight: 700;
            color: var(--c-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-left: auto;
            transition: var(--transition-base);
        }
        .analysis-card-footer .link-more:hover {
            color: var(--c-primary-deep);
            gap: 8px;
        }
        /* Featured Cards */
        .featured-card {
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            margin-bottom: 18px;
        }
        .featured-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }
        .featured-card .featured-img {
            height: 180px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .featured-card .featured-img .overlay-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(28, 28, 28, 0.7);
            color: #FFF;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 4px;
        }
        .featured-card .featured-body {
            padding: 18px 20px;
        }
        .featured-card .featured-body h4 {
            font-size: 16px;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--c-ink);
        }
        .featured-card .featured-body p {
            font-size: 13px;
            color: var(--c-text-muted);
            line-height: 1.6;
            margin: 0 0 12px;
        }
        /* Data Trend */
        .trend-panel {
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            padding: 22px;
            box-shadow: var(--shadow-card);
        }
        .trend-bars {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 16px;
        }
        .trend-bar-row {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .trend-bar-row .trend-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--c-text-muted);
            min-width: 90px;
            text-align: right;
        }
        .trend-bar-row .trend-bar-bg {
            flex: 1;
            height: 24px;
            background: var(--c-bg);
            border-radius: 6px;
            overflow: hidden;
            position: relative;
        }
        .trend-bar-row .trend-bar-fill {
            height: 100%;
            border-radius: 6px;
            background: var(--c-primary);
            transition: width 0.4s ease;
        }
        .trend-bar-row .trend-bar-fill.accent {
            background: var(--c-accent);
        }
        .trend-bar-row .trend-bar-fill.green {
            background: var(--c-green);
        }
        .trend-bar-row .trend-value {
            font-size: 13px;
            font-weight: 700;
            color: var(--c-ink);
            font-variant-numeric: tabular-nums;
            min-width: 40px;
        }
        /* Subscription Card */
        .subscribe-card {
            background: var(--c-ink);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 20px;
            color: #F5F0E8;
        }
        .subscribe-card .subscribe-text {
            flex: 1;
            min-width: 220px;
        }
        .subscribe-card .subscribe-text h3 {
            font-size: 20px;
            font-weight: 700;
            margin: 0 0 8px;
            color: #F5F0E8;
        }
        .subscribe-card .subscribe-text p {
            font-size: 14px;
            color: #C9C2B6;
            margin: 0;
            line-height: 1.6;
        }
        .subscribe-card .subscribe-action {
            display: flex;
            gap: 10px;
            align-items: center;
        }
        /* Compliance Notice */
        .compliance-bar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            background: rgba(199, 155, 75, 0.08);
            border: 1px solid rgba(199, 155, 75, 0.2);
            border-radius: var(--radius-card);
            padding: 16px 20px;
            font-size: 14px;
            color: #5A4A2F;
        }
        .compliance-bar i {
            font-size: 20px;
            color: var(--c-accent);
        }
        .compliance-bar .compliance-text {
            flex: 1;
            line-height: 1.6;
        }
        /* FAQ */
        .faq-item {
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: 10px;
            margin-bottom: 10px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .faq-item summary {
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 700;
            color: var(--c-ink);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: var(--transition-base);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary:hover {
            background-color: rgba(165, 42, 42, 0.04);
        }
        .faq-item summary .fa-chevron-down {
            transition: transform 0.3s ease;
            font-size: 13px;
            color: var(--c-text-muted);
            flex-shrink: 0;
        }
        .faq-item[open] summary .fa-chevron-down {
            transform: rotate(180deg);
        }
        .faq-item .faq-body {
            padding: 0 20px 18px;
            font-size: 14px;
            color: #3A3A3A;
            line-height: 1.7;
            border-top: 1px solid var(--c-line);
            padding-top: 14px;
            margin: 0 20px 0 20px;
            padding-left: 0;
            padding-right: 0;
        }
        /* Footer */
        .site-footer {
            background-color: var(--c-ink);
            color: #C9C2B6;
            padding: 48px 0 28px;
            font-size: 14px;
            line-height: 1.7;
        }
        .site-footer .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #F5F0E8;
            margin-bottom: 12px;
        }
        .site-footer .footer-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--c-primary);
            color: #FFF;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
        }
        .site-footer h4 {
            font-size: 16px;
            font-weight: 700;
            color: #F5F0E8;
            margin: 0 0 12px;
        }
        .site-footer p {
            font-size: 13px;
            color: #C9C2B6;
            line-height: 1.7;
            margin: 0;
        }
        .site-footer .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .site-footer .footer-links li {
            margin-bottom: 6px;
        }
        .site-footer .footer-links a {
            color: #C9C2B6;
            font-size: 13px;
            transition: var(--transition-base);
        }
        .site-footer .footer-links a:hover {
            color: #FFFFFF;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 18px;
            margin-top: 28px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: 4px;
            font-size: 12px;
            color: #8A8A8A;
        }
        .site-footer .footer-bottom a {
            color: #C9C2B6;
            font-size: 12px;
        }
        .site-footer .footer-bottom a:hover {
            color: #FFFFFF;
        }
        /* Fixed Bottom CTA */
        .fixed-bottom-cta {
            position: fixed;
            bottom: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 800;
            background: var(--c-ink);
            color: #F5F0E8;
            border-radius: 12px;
            padding: 12px 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            box-shadow: 0 8px 30px rgba(28, 28, 28, 0.35);
            max-width: calc(100% - 32px);
            flex-wrap: wrap;
            justify-content: center;
        }
        .fixed-bottom-cta .cta-text {
            font-size: 14px;
            font-weight: 600;
        }
        .fixed-bottom-cta .btn {
            min-height: 36px;
            padding: 8px 18px;
            font-size: 13px;
            border-radius: 6px;
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .header-search {
                min-width: 160px;
                max-width: 200px;
            }
            .nav-links a {
                padding: 6px 8px;
                font-size: 13px;
            }
            .section {
                padding-top: 48px;
                padding-bottom: 48px;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .header-search {
                order: 3;
                min-width: 100%;
                max-width: 100%;
                flex-basis: 100%;
            }
            .nav-links {
                display: none;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .mobile-nav.open {
                display: flex;
            }
            .lang-switch {
                margin-left: auto;
            }
            .doc-sidebar {
                position: static;
                max-height: none;
                margin-bottom: 20px;
            }
            .doc-sidebar {
                display: none;
            }
            .doc-sidebar.mobile-visible {
                display: block;
            }
            .mobile-toc-toggle {
                display: block;
                margin-bottom: 16px;
            }
            .mobile-toc-toggle summary {
                background: var(--c-surface);
                border: 1px solid var(--c-line);
                border-radius: 8px;
                padding: 12px 16px;
                font-size: 14px;
                font-weight: 700;
                cursor: pointer;
                list-style: none;
                display: flex;
                align-items: center;
                justify-content: space-between;
            }
            .mobile-toc-toggle summary::-webkit-details-marker {
                display: none;
            }
            .section {
                padding-top: 40px;
                padding-bottom: 40px;
            }
            .analysis-card-match .team {
                font-size: 16px;
            }
            .fixed-bottom-cta {
                bottom: 8px;
                padding: 10px 16px;
                gap: 10px;
                border-radius: 8px;
            }
            .fixed-bottom-cta .cta-text {
                font-size: 12px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 12px;
                padding-right: 12px;
            }
            .page-header h1 {
                font-size: 26px;
            }
            .filter-bar {
                flex-direction: column;
                align-items: stretch;
            }
            .filter-bar select,
            .filter-bar input[type="text"] {
                width: 100%;
                min-width: 0;
            }
            .analysis-card-data {
                grid-template-columns: 1fr;
            }
            .subscribe-card {
                flex-direction: column;
                align-items: flex-start;
            }
            .subscribe-card .subscribe-action {
                flex-wrap: wrap;
            }
            .analysis-card-footer .link-more {
                margin-left: 0;
            }
            .fixed-bottom-cta {
                flex-direction: column;
                align-items: stretch;
                text-align: center;
            }
            .fixed-bottom-cta .btn {
                justify-content: center;
            }
        }

/* roulang page: category4 */
:root {
            --c-primary: #A52A2A;
            --c-primary-deep: #7E1F1F;
            --c-accent: #C79B4B;
            --c-bg: #F7F3EC;
            --c-surface: #FFFFFF;
            --c-ink: #1C1C1C;
            --c-text-muted: #6B6B6B;
            --c-line: rgba(28, 28, 28, 0.08);
            --c-green: #2F7D5B;
            --c-cream: #F0EAE0;
            --radius-card: 14px;
            --radius-btn: 8px;
            --radius-badge: 4px;
            --shadow-card: 0 8px 30px rgba(28, 28, 28, 0.06);
            --shadow-card-hover: 0 14px 40px rgba(28, 28, 28, 0.10);
            --shadow-float: 0 12px 40px rgba(165, 42, 42, 0.18);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            --transition-base: all 0.25s ease;
            --container-max: 1200px;
            --section-gap-desktop: 72px;
            --section-gap-mobile: 48px;
            --header-height: auto;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--c-bg);
            color: var(--c-ink);
            font-size: 16px;
            line-height: 1.8;
            margin: 0;
            padding: 0;
            min-width: 320px;
            font-variant-numeric: tabular-nums;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        a {
            color: var(--c-primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover {
            color: var(--c-primary-deep);
            text-decoration: none;
        }

        button,
        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 16px;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .section {
            padding-top: var(--section-gap-desktop);
            padding-bottom: var(--section-gap-desktop);
            position: relative;
        }

        .section-sm {
            padding-top: 48px;
            padding-bottom: 48px;
        }

        .section-tight {
            padding-top: 36px;
            padding-bottom: 36px;
        }

        .section-alt {
            background-color: #FBF8F3;
        }

        .section-dark {
            background-color: var(--c-ink);
            color: #F5F0E8;
        }

        .section-dark h2,
        .section-dark h3,
        .section-dark .section-lead {
            color: #F5F0E8;
        }

        .section-dark p {
            color: #C9C2B6;
        }

        .section-lead {
            font-size: 16px;
            color: var(--c-text-muted);
            max-width: 720px;
            margin: 0 auto 40px;
            line-height: 1.8;
        }

        .text-center {
            text-align: center;
        }

        .text-muted {
            color: var(--c-text-muted);
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            font-family: var(--font-sans);
            border: 1px solid transparent;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
            line-height: 1.2;
        }

        .btn-primary {
            background-color: var(--c-primary);
            color: #FFFFFF;
            border-color: var(--c-primary);
        }

        .btn-primary:hover {
            background-color: var(--c-primary-deep);
            border-color: var(--c-primary-deep);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(165, 42, 42, 0.25);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--c-primary);
            border: 1px solid var(--c-primary);
        }

        .btn-secondary:hover {
            background-color: rgba(165, 42, 42, 0.08);
            color: var(--c-primary-deep);
            border-color: var(--c-primary-deep);
            transform: translateY(-2px);
        }

        .btn-light {
            background-color: #FFFFFF;
            color: var(--c-primary);
            border-color: #FFFFFF;
        }

        .btn-light:hover {
            background-color: #F5EFE8;
            color: var(--c-primary-deep);
            border-color: #F5EFE8;
            transform: translateY(-2px);
        }

        .btn-sm {
            min-height: 36px;
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 6px;
            gap: 4px;
        }

        .btn-lg {
            min-height: 52px;
            padding: 14px 32px;
            font-size: 16px;
            border-radius: 10px;
        }

        .btn-outline-light {
            background-color: transparent;
            color: #F5F0E8;
            border: 1px solid rgba(245, 240, 232, 0.35);
        }

        .btn-outline-light:hover {
            background-color: rgba(245, 240, 232, 0.08);
            color: #FFFFFF;
            border-color: #F5F0E8;
            transform: translateY(-2px);
        }

        /* ===== Badges ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.5;
            letter-spacing: 0.02em;
            background-color: rgba(199, 155, 75, 0.15);
            color: #8A6A2F;
            text-decoration: none;
        }

        .badge-red {
            background-color: rgba(165, 42, 42, 0.12);
            color: var(--c-primary-deep);
        }

        .badge-green {
            background-color: rgba(47, 125, 91, 0.12);
            color: var(--c-green);
        }

        .badge-muted {
            background-color: rgba(28, 28, 28, 0.06);
            color: var(--c-text-muted);
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 900;
            background: #FFFFFF;
            border-bottom: 1px solid var(--c-line);
            box-shadow: 0 2px 12px rgba(28, 28, 28, 0.05);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 16px;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background-color: var(--c-primary);
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 18px;
            font-weight: 800;
            color: var(--c-ink);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .logo-text span {
            color: var(--c-primary);
        }

        .header-search {
            display: flex;
            align-items: center;
            background-color: #F5F1EA;
            border: 1px solid transparent;
            border-radius: 8px;
            padding: 0 12px;
            min-height: 40px;
            flex: 1;
            max-width: 280px;
            transition: var(--transition-base);
        }

        .header-search i {
            color: var(--c-text-muted);
            font-size: 14px;
        }

        .header-search input {
            border: 0;
            background: transparent;
            padding: 8px 10px;
            min-height: 38px;
            width: 100%;
            outline: none;
            font-size: 14px;
            color: var(--c-ink);
        }

        .header-search:focus-within {
            border-color: var(--c-primary);
            box-shadow: 0 0 0 3px rgba(165, 42, 42, 0.15);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .version-selector {
            display: flex;
            align-items: center;
            gap: 6px;
            background-color: #F5F1EA;
            border-radius: 8px;
            padding: 4px 12px;
            min-height: 40px;
            font-size: 13px;
            color: var(--c-text-muted);
            cursor: pointer;
            transition: var(--transition-base);
            border: 1px solid transparent;
        }

        .version-selector:hover {
            border-color: var(--c-primary);
            color: var(--c-primary);
        }

        .version-selector i {
            font-size: 12px;
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: 0;
            font-size: 24px;
            color: var(--c-ink);
            cursor: pointer;
            padding: 8px;
            min-height: 44px;
            min-width: 44px;
        }

        .nav-row {
            display: flex;
            align-items: center;
            gap: 4px;
            border-top: 1px solid var(--c-line);
            padding: 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
        }

        .nav-row::-webkit-scrollbar {
            height: 3px;
        }

        .nav-row::-webkit-scrollbar-thumb {
            background-color: rgba(28, 28, 28, 0.15);
            border-radius: 6px;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 16px;
            font-size: 14px;
            font-weight: 600;
            color: var(--c-text-muted);
            text-decoration: none;
            white-space: nowrap;
            border-bottom: 2px solid transparent;
            transition: var(--transition-base);
            min-height: 44px;
        }

        .nav-link:hover {
            color: var(--c-primary);
        }

        .nav-link.active {
            color: var(--c-primary);
            border-bottom-color: var(--c-primary);
        }

        .nav-link i {
            font-size: 13px;
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--c-text-muted);
            padding: 8px 0;
            flex-wrap: wrap;
            list-style: none;
            margin: 0;
        }

        .breadcrumb li {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb li:not(:last-child)::after {
            content: "/";
            color: rgba(28, 28, 28, 0.25);
            font-size: 12px;
        }

        .breadcrumb a {
            color: var(--c-text-muted);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        .breadcrumb a:hover {
            color: var(--c-primary);
        }

        .breadcrumb .current {
            color: var(--c-ink);
            font-weight: 600;
        }

        /* ===== Layout: Sidebar ===== */
        .page-layout {
            display: flex;
            gap: 32px;
            align-items: flex-start;
        }

        .sidebar {
            width: 240px;
            flex-shrink: 0;
            position: sticky;
            top: 80px;
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            padding: 20px;
            box-shadow: var(--shadow-card);
        }

        .sidebar-title {
            font-size: 14px;
            font-weight: 700;
            color: var(--c-ink);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-title i {
            color: var(--c-accent);
            font-size: 14px;
        }

        .sidebar-nav {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 12px;
            font-size: 13px;
            color: var(--c-text-muted);
            text-decoration: none;
            border-radius: 6px;
            transition: var(--transition-base);
            line-height: 1.5;
        }

        .sidebar-nav a:hover {
            color: var(--c-primary);
            background-color: rgba(165, 42, 42, 0.05);
        }

        .sidebar-nav a i {
            font-size: 11px;
            color: var(--c-accent);
            flex-shrink: 0;
        }

        .sidebar-mobile-toggle {
            display: none;
            width: 100%;
            margin-bottom: 12px;
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: 8px;
            padding: 10px 14px;
            font-size: 14px;
            font-weight: 600;
            color: var(--c-ink);
            cursor: pointer;
            transition: var(--transition-base);
            justify-content: space-between;
            align-items: center;
        }

        .sidebar-mobile-toggle:hover {
            border-color: var(--c-primary);
            color: var(--c-primary);
        }

        .main-content {
            flex: 1;
            min-width: 0;
        }

        /* ===== Cards ===== */
        .card {
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: var(--transition-base);
            box-shadow: var(--shadow-card);
        }

        .card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }

        .tool-card {
            display: flex;
            flex-direction: column;
            gap: 12px;
            padding: 20px;
        }

        .tool-card .tool-icon {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            background-color: rgba(165, 42, 42, 0.08);
            color: var(--c-primary);
            flex-shrink: 0;
        }

        .tool-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin: 0;
            color: var(--c-ink);
        }

        .tool-card p {
            font-size: 14px;
            color: var(--c-text-muted);
            margin: 0;
            line-height: 1.7;
            flex: 1;
        }

        .tool-card .tool-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .tool-card .tool-actions {
            display: flex;
            gap: 8px;
            margin-top: 4px;
        }

        .tool-card-img {
            border-radius: 8px;
            overflow: hidden;
            margin-bottom: 4px;
        }

        .tool-card-img img {
            width: 100%;
            height: 140px;
            object-fit: cover;
            transition: transform 0.35s ease;
        }

        .tool-card:hover .tool-card-img img {
            transform: scale(1.03);
        }

        /* ===== Filter Bar ===== */
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: 12px;
            padding: 16px 20px;
            box-shadow: var(--shadow-card);
        }

        .filter-bar label {
            font-size: 13px;
            font-weight: 600;
            color: var(--c-text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .filter-bar select,
        .filter-bar input[type="text"] {
            min-height: 40px;
            border: 1px solid var(--c-line);
            border-radius: 8px;
            padding: 8px 12px;
            font-size: 13px;
            color: var(--c-ink);
            background-color: #FBF8F3;
            outline: none;
            transition: var(--transition-base);
        }

        .filter-bar select:focus,
        .filter-bar input[type="text"]:focus {
            border-color: var(--c-primary);
            box-shadow: 0 0 0 3px rgba(165, 42, 42, 0.12);
        }

        /* ===== List ===== */
        .list-item {
            padding: 16px 0;
            border-bottom: 1px solid var(--c-line);
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }

        .list-item:last-child {
            border-bottom: 0;
        }

        .list-item .list-date {
            font-size: 13px;
            color: var(--c-text-muted);
            font-variant-numeric: tabular-nums;
            flex-shrink: 0;
            min-width: 80px;
        }

        .list-item .list-content h4 {
            font-size: 15px;
            font-weight: 700;
            margin: 0 0 4px;
            color: var(--c-ink);
        }

        .list-item .list-content p {
            font-size: 14px;
            color: var(--c-text-muted);
            margin: 0 0 8px;
            line-height: 1.7;
        }

        .read-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--c-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            text-decoration: none;
            transition: var(--transition-base);
        }

        .read-more i {
            font-size: 11px;
            transition: transform 0.2s ease;
        }

        .read-more:hover {
            color: var(--c-primary-deep);
        }

        .read-more:hover i {
            transform: translateX(4px);
        }

        /* ===== FAQ ===== */
        .faq-item {
            border: 1px solid var(--c-line);
            border-radius: 10px;
            margin-bottom: 10px;
            background: var(--c-surface);
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-item:hover {
            border-color: rgba(165, 42, 42, 0.25);
        }

        .faq-item summary {
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 700;
            color: var(--c-ink);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            outline: none;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 12px;
            color: var(--c-accent);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item[open] summary::after {
            transform: rotate(180deg);
        }

        .faq-item .faq-body {
            padding: 0 20px 16px;
            font-size: 14px;
            color: var(--c-text-muted);
            line-height: 1.8;
        }

        /* ===== Info Strip ===== */
        .info-strip {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            background: rgba(47, 125, 91, 0.06);
            border: 1px solid rgba(47, 125, 91, 0.15);
            border-radius: 10px;
            padding: 16px 20px;
        }

        .info-strip i {
            color: var(--c-green);
            font-size: 18px;
            flex-shrink: 0;
        }

        .info-strip p {
            margin: 0;
            font-size: 14px;
            color: #3D5A4C;
            flex: 1;
            line-height: 1.7;
        }

        /* ===== Stats ===== */
        .stat-block {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            align-items: center;
        }

        .stat-item {
            text-align: center;
            padding: 12px 20px;
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: 10px;
            flex: 1;
            min-width: 100px;
        }

        .stat-item .stat-number {
            font-size: 28px;
            font-weight: 800;
            color: var(--c-primary);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }

        .stat-item .stat-label {
            font-size: 12px;
            color: var(--c-text-muted);
            margin-top: 4px;
        }

        /* ===== Section Titles ===== */
        .section-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--c-ink);
            margin: 0 0 12px;
            line-height: 1.3;
        }

        .section-title-sm {
            font-size: 20px;
            font-weight: 700;
            color: var(--c-ink);
            margin: 0 0 8px;
            line-height: 1.3;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--c-text-muted);
            margin: 0 0 24px;
            line-height: 1.7;
        }

        /* ===== Page Header ===== */
        .page-header {
            padding: 28px 0 20px;
            border-bottom: 1px solid var(--c-line);
            margin-bottom: 32px;
        }

        .page-header h1 {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 800;
            line-height: 1.2;
            margin: 0 0 10px;
            color: var(--c-ink);
        }

        .page-header .page-desc {
            font-size: 15px;
            color: var(--c-text-muted);
            max-width: 720px;
            line-height: 1.8;
            margin: 0;
        }

        /* ===== Footer ===== */
        .site-footer {
            background-color: var(--c-ink);
            color: #F5F0E8;
            padding: 48px 0 32px;
        }

        .site-footer h4 {
            font-size: 15px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 16px;
        }

        .site-footer p {
            font-size: 14px;
            color: #C9C2B6;
            line-height: 1.7;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }

        .footer-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background-color: var(--c-primary);
            color: #FFF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
        }

        .footer-logo span {
            font-size: 17px;
            font-weight: 700;
            color: #FFF;
        }

        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links a {
            font-size: 14px;
            color: #C9C2B6;
            text-decoration: none;
            transition: color 0.2s ease;
        }

        .footer-links a:hover {
            color: #FFF;
        }

        .footer-bottom {
            border-top: 1px solid rgba(245, 240, 232, 0.15);
            margin-top: 32px;
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 4px;
            align-items: center;
            font-size: 13px;
            color: #9E968A;
        }

        .footer-bottom a {
            color: #C9C2B6;
            text-decoration: none;
            transition: color 0.2s ease;
        }

        .footer-bottom a:hover {
            color: #FFF;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .page-layout {
                flex-direction: column;
                gap: 20px;
            }

            .sidebar {
                width: 100%;
                position: static;
                padding: 16px 20px;
            }

            .sidebar-nav {
                flex-direction: row;
                flex-wrap: wrap;
                gap: 6px;
            }

            .sidebar-nav a {
                font-size: 12px;
                padding: 6px 10px;
            }

            .header-search {
                max-width: 200px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding-top: var(--section-gap-mobile);
                padding-bottom: var(--section-gap-mobile);
            }

            .header-inner {
                flex-wrap: wrap;
                padding: 12px 0;
                gap: 8px;
            }

            .header-search {
                order: 3;
                max-width: 100%;
                width: 100%;
                flex-basis: 100%;
            }

            .mobile-menu-toggle {
                display: block;
            }

            .nav-row {
                display: none;
                flex-direction: column;
                align-items: stretch;
                padding: 8px 0;
            }

            .nav-row.open {
                display: flex;
            }

            .nav-link {
                padding: 10px 12px;
                border-bottom: 0;
                border-left: 2px solid transparent;
            }

            .nav-link.active {
                border-left-color: var(--c-primary);
                border-bottom-color: transparent;
            }

            .version-selector span {
                display: none;
            }

            .sidebar-mobile-toggle {
                display: flex;
            }

            .sidebar {
                display: none;
                padding: 12px 16px;
            }

            .sidebar.open {
                display: block;
            }

            .sidebar-nav {
                flex-direction: column;
            }

            .filter-bar {
                flex-direction: column;
                align-items: stretch;
            }

            .filter-bar select,
            .filter-bar input[type="text"] {
                width: 100%;
            }

            .stat-block {
                flex-wrap: wrap;
                gap: 10px;
            }

            .stat-item {
                min-width: calc(50% - 10px);
            }

            .tool-card .tool-actions {
                flex-direction: column;
            }

            .tool-card .tool-actions .btn {
                width: 100%;
            }
        }

        @media (max-width: 520px) {
            .logo-text {
                font-size: 15px;
            }

            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }

            .header-inner {
                gap: 6px;
            }

            .page-header h1 {
                font-size: 26px;
            }

            .stat-item .stat-number {
                font-size: 22px;
            }

            .card {
                padding: 16px;
            }

            .tool-card {
                padding: 16px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }
        }

/* roulang page: category5 */
:root {
        --c-primary: #A52A2A;
        --c-primary-deep: #7E1F1F;
        --c-accent: #C79B4B;
        --c-bg: #F7F3EC;
        --c-surface: #FFFFFF;
        --c-ink: #1C1C1C;
        --c-text-muted: #6B6B6B;
        --c-line: rgba(28,28,28,0.08);
        --c-green: #2F7D5B;
        --c-cream: #F0EAE0;
        --radius-card: 14px;
        --radius-btn: 8px;
        --radius-badge: 4px;
        --shadow-card: 0 8px 30px rgba(28,28,28,0.06);
        --shadow-card-hover: 0 14px 40px rgba(28,28,28,0.10);
        --shadow-float: 0 12px 40px rgba(165,42,42,0.18);
        --font-sans: "PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
        --transition-base: all 0.25s ease;
        --container-max: 1200px;
        --section-gap-desktop: 72px;
        --section-gap-mobile: 48px;
        --header-height: auto;
    }
    html {
        scroll-behavior: smooth;
        -webkit-text-size-adjust: 100%;
    }
    body {
        font-family: var(--font-sans);
        background-color: var(--c-bg);
        color: var(--c-ink);
        font-size: 16px;
        line-height: 1.8;
        margin: 0;
        padding: 0;
        padding-bottom: 76px;
        min-width: 320px;
        font-variant-numeric: tabular-nums;
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
        border: 0;
    }
    a {
        color: var(--c-primary);
        text-decoration: none;
        transition: color 0.2s ease;
    }
    a:hover {
        color: var(--c-primary-deep);
        text-decoration: none;
    }
    button, input, select, textarea {
        font-family: var(--font-sans);
        font-size: 16px;
    }
    .container {
        max-width: var(--container-max);
        margin: 0 auto;
        padding-left: 20px;
        padding-right: 20px;
    }
    .section {
        padding-top: 36px;
        padding-bottom: 36px;
        position: relative;
    }
    .section-alt {
        background-color: #FBF8F3;
        border-top: 1px solid var(--c-line);
        border-bottom: 1px solid var(--c-line);
    }
    .section-lead {
        font-size: 15px;
        color: var(--c-text-muted);
        max-width: 760px;
        margin: 0 0 28px;
        line-height: 1.8;
    }
    .text-center {
        text-align: center;
    }
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        min-height: 44px;
        padding: 12px 22px;
        border-radius: var(--radius-btn);
        font-weight: 700;
        font-size: 15px;
        font-family: var(--font-sans);
        border: 1px solid transparent;
        cursor: pointer;
        transition: var(--transition-base);
        text-decoration: none;
        line-height: 1.2;
    }
    .btn-primary {
        background-color: var(--c-primary);
        color: #FFFFFF;
        border-color: var(--c-primary);
    }
    .btn-primary:hover {
        background-color: var(--c-primary-deep);
        border-color: var(--c-primary-deep);
        color: #FFFFFF;
        transform: translateY(-2px);
        box-shadow: 0 8px 20px rgba(165,42,42,0.25);
    }
    .btn-primary:active {
        transform: translateY(1px);
        box-shadow: none;
    }
    .btn-secondary {
        background-color: transparent;
        color: var(--c-primary);
        border: 1px solid var(--c-primary);
    }
    .btn-secondary:hover {
        background-color: rgba(165,42,42,0.08);
        color: var(--c-primary-deep);
        border-color: var(--c-primary-deep);
        transform: translateY(-2px);
    }
    .btn-sm {
        min-height: 36px;
        padding: 8px 16px;
        font-size: 13px;
        border-radius: 6px;
        gap: 4px;
    }
    .badge {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 4px 12px;
        border-radius: 20px;
        font-size: 12px;
        font-weight: 600;
        line-height: 1.5;
        letter-spacing: 0.02em;
        background-color: rgba(199,155,75,0.15);
        color: #8A6A2F;
        text-decoration: none;
    }
    .badge-red {
        background-color: rgba(165,42,42,0.12);
        color: var(--c-primary-deep);
    }
    .badge-green {
        background-color: rgba(47,125,91,0.12);
        color: var(--c-green);
    }
    /* Header */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 900;
        background: #FFFFFF;
        border-bottom: 1px solid var(--c-line);
        box-shadow: 0 2px 12px rgba(28,28,28,0.04);
    }
    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        min-height: 68px;
        gap: 16px;
    }
    .logo {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        font-weight: 800;
        font-size: 18px;
        color: var(--c-ink);
        letter-spacing: 0.02em;
        text-decoration: none;
        white-space: nowrap;
    }
    .logo:hover {
        color: var(--c-primary);
    }
    .logo-icon {
        width: 34px;
        height: 34px;
        border-radius: 8px;
        background: var(--c-primary);
        color: #FFFFFF;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 16px;
    }
    .header-actions {
        display: flex;
        align-items: center;
        gap: 12px;
    }
    .header-search {
        display: flex;
        align-items: center;
        background: #F7F3EC;
        border: 1px solid var(--c-line);
        border-radius: 8px;
        padding: 0 12px;
        height: 42px;
        width: 240px;
        transition: border-color 0.2s ease, box-shadow 0.2s ease;
    }
    .header-search:focus-within {
        border-color: var(--c-primary);
        box-shadow: 0 0 0 3px rgba(165,42,42,0.12);
        background: #FFFFFF;
    }
    .header-search i {
        color: var(--c-text-muted);
        font-size: 14px;
        margin-right: 8px;
    }
    .header-search input {
        border: none;
        background: transparent;
        outline: none;
        flex: 1;
        font-size: 14px;
        color: var(--c-ink);
        min-height: 40px;
    }
    .header-search input::placeholder {
        color: #9A938A;
    }
    .lang-switch {
        display: inline-flex;
        border: 1px solid var(--c-line);
        border-radius: 8px;
        overflow: hidden;
        height: 42px;
    }
    .lang-switch button {
        border: none;
        background: #FFFFFF;
        padding: 0 14px;
        font-size: 13px;
        font-weight: 600;
        color: var(--c-text-muted);
        cursor: pointer;
        min-height: 42px;
        transition: var(--transition-base);
    }
    .lang-switch button.active {
        background: var(--c-ink);
        color: #FFFFFF;
    }
    .hamburger {
        display: none;
        flex-direction: column;
        gap: 5px;
        background: transparent;
        border: none;
        cursor: pointer;
        padding: 8px;
        border-radius: 6px;
    }
    .hamburger span {
        width: 22px;
        height: 2px;
        background: var(--c-ink);
        border-radius: 2px;
        transition: var(--transition-base);
    }
    .main-nav {
        display: flex;
        align-items: center;
        gap: 8px;
        flex-wrap: wrap;
        border-top: 1px solid var(--c-line);
        padding: 8px 0;
    }
    .main-nav a {
        display: inline-flex;
        align-items: center;
        gap: 4px;
        padding: 8px 14px;
        font-size: 14px;
        font-weight: 600;
        color: #4A4A4A;
        border-radius: 8px;
        text-decoration: none;
        transition: var(--transition-base);
        white-space: nowrap;
    }
    .main-nav a:hover {
        background: rgba(165,42,42,0.08);
        color: var(--c-primary);
    }
    .main-nav a.active {
        background: var(--c-primary);
        color: #FFFFFF;
    }
    /* Breadcrumb */
    .breadcrumb {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 8px;
        font-size: 13px;
        color: var(--c-text-muted);
        padding: 16px 0 4px;
    }
    .breadcrumb a {
        color: var(--c-text-muted);
        text-decoration: none;
    }
    .breadcrumb a:hover {
        color: var(--c-primary);
    }
    .breadcrumb i {
        font-size: 10px;
        color: #B5AFA5;
    }
    /* Page header */
    .page-header {
        padding: 24px 0 8px;
        border-bottom: 1px dashed var(--c-line);
        margin-bottom: 28px;
    }
    .page-header h1 {
        font-size: clamp(26px, 3.4vw, 34px);
        font-weight: 800;
        line-height: 1.25;
        margin: 0 0 10px;
        color: var(--c-ink);
    }
    .page-header p {
        font-size: 15px;
        color: var(--c-text-muted);
        margin: 0;
        max-width: 760px;
        line-height: 1.8;
    }
    /* Sidebar */
    .doc-sidebar {
        position: sticky;
        top: 120px;
        background: #FFFFFF;
        border: 1px solid var(--c-line);
        border-radius: var(--radius-card);
        padding: 18px 16px;
        box-shadow: var(--shadow-card);
    }
    .doc-sidebar h3 {
        font-size: 15px;
        font-weight: 700;
        margin: 0 0 12px;
        color: var(--c-ink);
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .doc-sidebar h3 i {
        color: var(--c-accent);
        font-size: 14px;
    }
    .doc-sidebar ul {
        list-style: none;
        margin: 0;
        padding: 0;
    }
    .doc-sidebar ul li {
        margin-bottom: 4px;
    }
    .doc-sidebar ul a {
        display: block;
        padding: 8px 12px;
        font-size: 13px;
        color: #4A4A4A;
        border-radius: 6px;
        text-decoration: none;
        transition: var(--transition-base);
        border-left: 2px solid transparent;
    }
    .doc-sidebar ul a:hover {
        background: rgba(165,42,42,0.06);
        color: var(--c-primary);
        border-left-color: var(--c-primary);
    }
    /* Guide cards */
    .guide-card {
        background: var(--c-surface);
        border: 1px solid var(--c-line);
        border-radius: var(--radius-card);
        padding: 20px 22px;
        box-shadow: var(--shadow-card);
        transition: var(--transition-base);
        display: flex;
        flex-direction: column;
        height: 100%;
    }
    .guide-card:hover {
        transform: translateY(-3px);
        box-shadow: var(--shadow-card-hover);
        border-color: rgba(165,42,42,0.18);
    }
    .guide-card .guide-tag {
        font-size: 12px;
        font-weight: 600;
        color: var(--c-primary);
        background: rgba(165,42,42,0.08);
        padding: 3px 10px;
        border-radius: 4px;
        display: inline-flex;
        align-items: center;
        gap: 4px;
        margin-bottom: 12px;
        width: fit-content;
    }
    .guide-card h3 {
        font-size: 18px;
        font-weight: 700;
        line-height: 1.45;
        margin: 0 0 8px;
        color: var(--c-ink);
    }
    .guide-card p {
        font-size: 14px;
        color: var(--c-text-muted);
        line-height: 1.75;
        margin: 0 0 14px;
        flex: 1;
    }
    .guide-card .guide-meta {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        border-top: 1px solid var(--c-line);
        padding-top: 14px;
    }
    .guide-card .guide-date {
        font-size: 12px;
        color: #9A938A;
        letter-spacing: 0.02em;
    }
    .read-more {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-size: 13px;
        font-weight: 700;
        color: var(--c-primary);
        text-decoration: none;
        transition: var(--transition-base);
    }
    .read-more:hover {
        color: var(--c-primary-deep);
        gap: 10px;
    }
    .read-more i {
        font-size: 11px;
        transition: transform 0.2s ease;
    }
    .read-more:hover i {
        transform: translateX(3px);
    }
    /* Steps */
    .step-row {
        display: flex;
        flex-wrap: wrap;
        gap: 16px;
        margin-top: 16px;
    }
    .step-item {
        flex: 1 1 220px;
        min-width: 200px;
        background: var(--c-surface);
        border: 1px solid var(--c-line);
        border-radius: var(--radius-card);
        padding: 18px;
        box-shadow: var(--shadow-card);
        transition: var(--transition-base);
    }
    .step-item:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-card-hover);
    }
    .step-num {
        width: 32px;
        height: 32px;
        border-radius: 50%;
        background: var(--c-primary);
        color: #FFFFFF;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 14px;
        font-weight: 800;
        margin-bottom: 10px;
    }
    .step-item h4 {
        font-size: 15px;
        font-weight: 700;
        margin: 0 0 6px;
        color: var(--c-ink);
    }
    .step-item p {
        font-size: 13px;
        color: var(--c-text-muted);
        margin: 0;
        line-height: 1.7;
    }
    /* FAQ */
    .faq-item {
        margin-bottom: 12px;
        border: 1px solid var(--c-line);
        border-radius: 10px;
        overflow: hidden;
        background: #FFFFFF;
        transition: var(--transition-base);
    }
    .faq-item:hover {
        border-color: rgba(165,42,42,0.25);
    }
    .faq-question {
        width: 100%;
        background: none;
        border: none;
        padding: 16px 20px;
        font-size: 15px;
        font-weight: 700;
        color: var(--c-ink);
        text-align: left;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        transition: var(--transition-base);
        font-family: var(--font-sans);
        min-height: 44px;
    }
    .faq-question:hover {
        color: var(--c-primary);
    }
    .faq-question i {
        color: var(--c-accent);
        font-size: 13px;
        transition: transform 0.2s ease;
        flex-shrink: 0;
    }
    .faq-item.open .faq-question i {
        transform: rotate(180deg);
    }
    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease, padding 0.3s ease;
        padding: 0 20px;
        font-size: 14px;
        color: var(--c-text-muted);
        line-height: 1.8;
    }
    .faq-item.open .faq-answer {
        max-height: 300px;
        padding: 0 20px 18px;
    }
    /* Notice bar */
    .notice-bar {
        background: rgba(47,125,91,0.08);
        border: 1px solid rgba(47,125,91,0.2);
        border-radius: 10px;
        padding: 14px 20px;
        display: flex;
        align-items: center;
        gap: 12px;
        font-size: 14px;
        color: #285C44;
    }
    .notice-bar i {
        font-size: 18px;
        color: var(--c-green);
        flex-shrink: 0;
    }
    /* Hot cards */
    .hot-card {
        background: var(--c-surface);
        border: 1px solid var(--c-line);
        border-radius: var(--radius-card);
        overflow: hidden;
        box-shadow: var(--shadow-card);
        transition: var(--transition-base);
        height: 100%;
        display: flex;
        flex-direction: column;
    }
    .hot-card:hover {
        transform: translateY(-3px);
        box-shadow: var(--shadow-card-hover);
    }
    .hot-card .hot-img {
        height: 150px;
        background-size: cover;
        background-position: center;
        position: relative;
    }
    .hot-card .hot-badge {
        position: absolute;
        top: 12px;
        left: 12px;
        background: var(--c-primary);
        color: #FFFFFF;
        font-size: 11px;
        font-weight: 700;
        padding: 4px 10px;
        border-radius: 4px;
    }
    .hot-card .hot-body {
        padding: 16px 18px;
        flex: 1;
    }
    .hot-card h4 {
        font-size: 15px;
        font-weight: 700;
        margin: 0 0 6px;
        line-height: 1.45;
        color: var(--c-ink);
    }
    .hot-card p {
        font-size: 13px;
        color: var(--c-text-muted);
        margin: 0 0 10px;
        line-height: 1.7;
    }
    /* Help entry */
    .help-entry {
        background: var(--c-ink);
        border-radius: var(--radius-card);
        padding: 26px 28px;
        color: #F5F0E8;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 20px;
        flex-wrap: wrap;
    }
    .help-entry h3 {
        font-size: 17px;
        font-weight: 700;
        margin: 0 0 4px;
        color: #F5F0E8;
    }
    .help-entry p {
        font-size: 14px;
        color: #C9C2B6;
        margin: 0;
    }
    .help-entry .btn {
        flex-shrink: 0;
    }
    /* Footer */
    .site-footer {
        background: var(--c-ink);
        color: #F5F0E8;
        padding: 48px 0 20px;
        margin-top: 0;
    }
    .site-footer .footer-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-weight: 800;
        font-size: 18px;
        margin-bottom: 12px;
        color: #F5F0E8;
    }
    .site-footer .footer-logo .logo-icon {
        width: 34px;
        height: 34px;
        border-radius: 8px;
        background: var(--c-primary);
        color: #FFFFFF;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 16px;
    }
    .site-footer p {
        font-size: 14px;
        color: #C9C2B6;
        line-height: 1.8;
    }
    .site-footer h4 {
        font-size: 15px;
        font-weight: 700;
        color: #F5F0E8;
        margin: 0 0 14px;
    }
    .site-footer .footer-links {
        list-style: none;
        margin: 0;
        padding: 0;
    }
    .site-footer .footer-links li {
        margin-bottom: 8px;
    }
    .site-footer .footer-links a {
        color: #C9C2B6;
        font-size: 14px;
        text-decoration: none;
        transition: color 0.2s ease;
    }
    .site-footer .footer-links a:hover {
        color: #FFFFFF;
    }
    .footer-bottom {
        border-top: 1px solid rgba(255,255,255,0.1);
        margin-top: 32px;
        padding-top: 16px;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-wrap: wrap;
        gap: 2px;
        font-size: 13px;
        color: #9A938A;
    }
    .footer-bottom a {
        color: #C9C2B6;
        text-decoration: none;
    }
    .footer-bottom a:hover {
        color: #FFFFFF;
    }
    /* Bottom fixed bar */
    .bottom-float {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        z-index: 800;
        background: #FFFFFF;
        border-top: 1px solid var(--c-line);
        box-shadow: 0 -4px 20px rgba(28,28,28,0.08);
        padding: 12px 20px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
    }
    .bottom-float p {
        margin: 0;
        font-size: 14px;
        font-weight: 600;
        color: var(--c-ink);
    }
    .bottom-float .btn {
        flex-shrink: 0;
    }
    /* Responsive */
    @media (max-width: 1024px) {
        .header-search {
            width: 180px;
        }
        .main-nav a {
            padding: 8px 10px;
            font-size: 13px;
        }
        .section {
            padding-top: 28px;
            padding-bottom: 28px;
        }
    }
    @media (max-width: 768px) {
        .hamburger {
            display: flex;
        }
        .header-actions .header-search,
        .header-actions .lang-switch {
            display: none;
        }
        .header-inner {
            min-height: 58px;
        }
        .main-nav {
            display: none;
            flex-direction: column;
            align-items: stretch;
            gap: 2px;
            padding: 8px 0;
        }
        .main-nav.open {
            display: flex;
        }
        .main-nav a {
            padding: 10px 14px;
            border-radius: 6px;
        }
        .doc-sidebar {
            display: none;
        }
        .page-header {
            padding: 16px 0 4px;
            margin-bottom: 20px;
        }
        .guide-card {
            padding: 16px 18px;
        }
        .step-row {
            flex-direction: column;
            gap: 12px;
        }
        .help-entry {
            flex-direction: column;
            align-items: flex-start;
        }
        .bottom-float {
            padding: 10px 16px;
            flex-wrap: wrap;
        }
        .bottom-float p {
            font-size: 13px;
            flex: 1;
            min-width: 150px;
        }
    }
    @media (max-width: 520px) {
        body {
            font-size: 15px;
        }
        .container {
            padding-left: 16px;
            padding-right: 16px;
        }
        .logo {
            font-size: 16px;
        }
        .logo-icon {
            width: 30px;
            height: 30px;
            font-size: 14px;
        }
        .page-header h1 {
            font-size: 24px;
        }
        .section {
            padding-top: 24px;
            padding-bottom: 24px;
        }
        .guide-card h3 {
            font-size: 16px;
        }
        .hot-card .hot-img {
            height: 130px;
        }
        .help-entry {
            padding: 20px;
        }
        .footer-bottom {
            flex-direction: column;
            gap: 4px;
        }
        .bottom-float .btn {
            padding: 10px 16px;
            font-size: 14px;
        }
    }
    .focus-visible {
        outline: 3px solid var(--c-accent);
        outline-offset: 2px;
    }

/* roulang page: category6 */
:root {
            --c-primary: #A52A2A;
            --c-primary-deep: #7E1F1F;
            --c-accent: #C79B4B;
            --c-bg: #F7F3EC;
            --c-surface: #FFFFFF;
            --c-ink: #1C1C1C;
            --c-text-muted: #6B6B6B;
            --c-line: rgba(28, 28, 28, 0.08);
            --c-green: #2F7D5B;
            --c-cream: #F0EAE0;
            --radius-card: 14px;
            --radius-btn: 8px;
            --radius-badge: 4px;
            --shadow-card: 0 8px 30px rgba(28, 28, 28, 0.06);
            --shadow-card-hover: 0 14px 40px rgba(28, 28, 28, 0.10);
            --shadow-float: 0 12px 40px rgba(165, 42, 42, 0.18);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            --transition-base: all 0.25s ease;
            --container-max: 1200px;
            --section-gap-desktop: 64px;
            --section-gap-mobile: 44px;
            --header-height: auto;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--c-bg);
            color: var(--c-ink);
            font-size: 16px;
            line-height: 1.8;
            margin: 0;
            padding: 0;
            padding-bottom: 76px;
            min-width: 320px;
            font-variant-numeric: tabular-nums;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        a {
            color: var(--c-primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--c-primary-deep);
            text-decoration: none;
        }
        button,
        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 16px;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .section {
            padding-top: var(--section-gap-desktop);
            padding-bottom: var(--section-gap-desktop);
            position: relative;
        }
        .section-sm {
            padding-top: 40px;
            padding-bottom: 40px;
        }
        .section-tight {
            padding-top: 28px;
            padding-bottom: 28px;
        }
        .section-alt {
            background-color: #FBF8F3;
        }
        .section-dark {
            background-color: var(--c-ink);
            color: #F5F0E8;
        }
        .section-dark h2,
        .section-dark h3,
        .section-dark .section-lead {
            color: #F5F0E8;
        }
        .section-dark p {
            color: #C9C2B6;
        }
        .section-lead {
            font-size: 16px;
            color: var(--c-text-muted);
            max-width: 720px;
            margin: 0 auto 40px;
            line-height: 1.8;
        }
        .text-center {
            text-align: center;
        }
        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            font-family: var(--font-sans);
            border: 1px solid transparent;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
            line-height: 1.2;
        }
        .btn-primary {
            background-color: var(--c-primary);
            color: #FFFFFF;
            border-color: var(--c-primary);
        }
        .btn-primary:hover {
            background-color: var(--c-primary-deep);
            border-color: var(--c-primary-deep);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(165, 42, 42, 0.25);
        }
        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--c-primary);
            border: 1px solid var(--c-primary);
        }
        .btn-secondary:hover {
            background-color: rgba(165, 42, 42, 0.08);
            color: var(--c-primary-deep);
            border-color: var(--c-primary-deep);
            transform: translateY(-2px);
        }
        .btn-light {
            background-color: #FFFFFF;
            color: var(--c-primary);
            border-color: #FFFFFF;
        }
        .btn-light:hover {
            background-color: #F5EFE8;
            color: var(--c-primary-deep);
            border-color: #F5EFE8;
            transform: translateY(-2px);
        }
        .btn-sm {
            min-height: 36px;
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 6px;
            gap: 4px;
        }
        .btn-lg {
            min-height: 52px;
            padding: 14px 32px;
            font-size: 16px;
            border-radius: 10px;
        }
        :focus-visible {
            outline: 3px solid var(--c-accent);
            outline-offset: 2px;
        }
        /* ===== Badges ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.5;
            letter-spacing: 0.02em;
            background-color: rgba(199, 155, 75, 0.15);
            color: #8A6A2F;
            text-decoration: none;
        }
        .badge-red {
            background-color: rgba(165, 42, 42, 0.12);
            color: var(--c-primary-deep);
        }
        .badge-green {
            background-color: rgba(47, 125, 91, 0.12);
            color: var(--c-green);
        }
        /* ===== Header / Navigation ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 900;
            background: #FFFFFF;
            border-bottom: 1px solid var(--c-line);
            box-shadow: 0 2px 12px rgba(28, 28, 28, 0.04);
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding-top: 12px;
            padding-bottom: 12px;
            min-height: 64px;
        }
        .logo-link {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 800;
            color: var(--c-ink);
            letter-spacing: 0.01em;
            white-space: nowrap;
            text-decoration: none;
        }
        .logo-link:hover {
            color: var(--c-primary);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--c-primary);
            color: #FFFFFF;
            font-size: 14px;
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: var(--c-bg);
            border: 1px solid var(--c-line);
            border-radius: 8px;
            padding: 0 12px;
            min-height: 40px;
            width: 240px;
            gap: 8px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .nav-search:focus-within {
            border-color: var(--c-primary);
            box-shadow: 0 0 0 3px rgba(165, 42, 42, 0.12);
        }
        .nav-search i {
            color: var(--c-text-muted);
            font-size: 14px;
        }
        .nav-search input {
            border: none;
            background: transparent;
            outline: none;
            flex: 1;
            font-size: 14px;
            color: var(--c-ink);
            min-height: 38px;
            padding: 0;
        }
        .nav-search input::placeholder {
            color: #9A9A9A;
        }
        .lang-switch {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            border: 1px solid var(--c-line);
            border-radius: 6px;
            padding: 4px 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--c-text-muted);
            cursor: pointer;
            background: #FFFFFF;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .lang-switch:hover {
            border-color: var(--c-primary);
            color: var(--c-primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li {
            margin: 0;
        }
        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 600;
            color: #4A4A4A;
            border-radius: 6px;
            text-decoration: none;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .nav-links a:hover {
            background: rgba(165, 42, 42, 0.06);
            color: var(--c-primary);
        }
        .nav-links a.active {
            background: rgba(165, 42, 42, 0.12);
            color: var(--c-primary-deep);
        }
        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--c-line);
            border-radius: 6px;
            padding: 8px 12px;
            font-size: 18px;
            color: var(--c-ink);
            cursor: pointer;
            line-height: 1;
        }
        .nav-toggle:hover {
            border-color: var(--c-primary);
            color: var(--c-primary);
        }
        .mobile-menu {
            display: none;
            background: #FFFFFF;
            border-top: 1px solid var(--c-line);
            padding: 12px 20px 20px;
        }
        .mobile-menu ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-menu a {
            display: block;
            padding: 10px 12px;
            font-size: 15px;
            font-weight: 600;
            color: #3A3A3A;
            border-radius: 6px;
            text-decoration: none;
            transition: var(--transition-base);
        }
        .mobile-menu a:hover {
            background: rgba(165, 42, 42, 0.06);
            color: var(--c-primary);
        }
        .mobile-menu a.active {
            background: rgba(165, 42, 42, 0.12);
            color: var(--c-primary-deep);
        }
        /* ===== Breadcrumb ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--c-text-muted);
            padding: 8px 0;
            margin-bottom: 12px;
        }
        .breadcrumb a {
            color: var(--c-text-muted);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        .breadcrumb a:hover {
            color: var(--c-primary);
        }
        .breadcrumb span {
            color: #9A9A9A;
        }
        .breadcrumb .current {
            color: var(--c-primary);
            font-weight: 600;
        }
        /* ===== Layout with sidebar ===== */
        .doc-layout {
            display: flex;
            gap: 32px;
            align-items: flex-start;
        }
        .doc-sidebar {
            width: 260px;
            flex-shrink: 0;
            position: sticky;
            top: 80px;
            max-height: calc(100vh - 100px);
            overflow-y: auto;
            background: #FFFFFF;
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            padding: 20px;
            box-shadow: var(--shadow-card);
        }
        .doc-sidebar h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--c-ink);
            margin: 0 0 12px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--c-line);
            letter-spacing: 0.02em;
            text-transform: uppercase;
        }
        .doc-sidebar ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .doc-sidebar ul a {
            display: block;
            padding: 8px 10px;
            font-size: 14px;
            color: #5A5A5A;
            border-radius: 6px;
            text-decoration: none;
            transition: var(--transition-base);
            line-height: 1.5;
        }
        .doc-sidebar ul a:hover {
            background: rgba(165, 42, 42, 0.06);
            color: var(--c-primary);
        }
        .doc-sidebar ul a i {
            width: 18px;
            margin-right: 6px;
            font-size: 12px;
        }
        .doc-main {
            flex: 1;
            min-width: 0;
        }
        /* ===== Page header ===== */
        .page-header {
            padding: 20px 0 28px;
            border-bottom: 1px solid var(--c-line);
            margin-bottom: 36px;
        }
        .page-header h1 {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 800;
            line-height: 1.2;
            margin: 0 0 12px;
            color: var(--c-ink);
        }
        .page-header p {
            font-size: 16px;
            color: var(--c-text-muted);
            margin: 0;
            max-width: 720px;
            line-height: 1.8;
        }
        /* ===== News list ===== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .news-item {
            background: #FFFFFF;
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            padding: 24px 28px;
            margin-bottom: 16px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            position: relative;
        }
        .news-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .news-item .news-date {
            font-size: 13px;
            color: var(--c-text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }
        .news-item .news-date i {
            font-size: 12px;
            color: var(--c-accent);
        }
        .news-item h3 {
            font-size: 19px;
            font-weight: 700;
            line-height: 1.4;
            margin: 0 0 10px;
            color: var(--c-ink);
        }
        .news-item h3 a {
            color: var(--c-ink);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        .news-item h3 a:hover {
            color: var(--c-primary);
        }
        .news-item .news-summary {
            font-size: 15px;
            color: #5A5A5A;
            line-height: 1.8;
            margin: 0 0 14px;
        }
        .news-item .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 700;
            color: var(--c-primary);
            text-decoration: none;
            transition: var(--transition-base);
            cursor: pointer;
            border: none;
            background: transparent;
            padding: 0;
        }
        .news-item .read-more:hover {
            color: var(--c-primary-deep);
            gap: 10px;
        }
        .news-item .read-more i {
            font-size: 12px;
            transition: transform 0.25s ease;
        }
        .news-item .news-detail {
            display: none;
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid var(--c-line);
            font-size: 15px;
            color: #5A5A5A;
            line-height: 1.8;
        }
        .news-item .news-detail.open {
            display: block;
            animation: fadeIn 0.3s ease;
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(-6px); }
            to { opacity: 1; transform: translateY(0); }
        }
        /* ===== Tag section ===== */
        .tags-section {
            background: #FFFFFF;
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            padding: 24px 28px;
            box-shadow: var(--shadow-card);
        }
        .tags-section h3 {
            font-size: 17px;
            font-weight: 700;
            margin: 0 0 14px;
            color: var(--c-ink);
        }
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-list a {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 600;
            color: #5A5A5A;
            background: var(--c-bg);
            border: 1px solid var(--c-line);
            border-radius: 20px;
            text-decoration: none;
            transition: var(--transition-base);
            cursor: pointer;
        }
        .tag-list a:hover {
            background: rgba(165, 42, 42, 0.08);
            color: var(--c-primary);
            border-color: rgba(165, 42, 42, 0.25);
        }
        /* ===== Hot news ===== */
        .hot-news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 20px;
        }
        .hot-news-card {
            background: #FFFFFF;
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }
        .hot-news-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .hot-news-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }
        .hot-news-card .hot-body {
            padding: 18px 20px 20px;
        }
        .hot-news-card .hot-date {
            font-size: 12px;
            color: var(--c-text-muted);
            margin-bottom: 6px;
            letter-spacing: 0.02em;
        }
        .hot-news-card h4 {
            font-size: 16px;
            font-weight: 700;
            line-height: 1.4;
            margin: 0 0 8px;
            color: var(--c-ink);
        }
        .hot-news-card p {
            font-size: 14px;
            color: var(--c-text-muted);
            line-height: 1.6;
            margin: 0;
        }
        /* ===== Subscribe ===== */
        .subscribe-box {
            background: var(--c-ink);
            border-radius: var(--radius-card);
            padding: 36px 32px;
            color: #F5F0E8;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .subscribe-box h3 {
            font-size: 20px;
            font-weight: 700;
            color: #F5F0E8;
            margin: 0 0 6px;
        }
        .subscribe-box p {
            font-size: 14px;
            color: #C9C2B6;
            margin: 0;
            line-height: 1.6;
        }
        .subscribe-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .subscribe-form input {
            min-height: 44px;
            padding: 10px 16px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-btn);
            background: rgba(255, 255, 255, 0.08);
            color: #FFFFFF;
            font-size: 14px;
            min-width: 240px;
            outline: none;
            transition: var(--transition-base);
        }
        .subscribe-form input::placeholder {
            color: #A9A9A9;
        }
        .subscribe-form input:focus {
            border-color: var(--c-accent);
            box-shadow: 0 0 0 3px rgba(199, 155, 75, 0.2);
        }
        /* ===== Compliance ===== */
        .compliance-bar {
            background: rgba(47, 125, 91, 0.06);
            border: 1px solid rgba(47, 125, 91, 0.2);
            border-radius: 10px;
            padding: 16px 20px;
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 14px;
            color: #3A5A4A;
            line-height: 1.6;
        }
        .compliance-bar i {
            font-size: 18px;
            color: var(--c-green);
            margin-top: 2px;
            flex-shrink: 0;
        }
        /* ===== Section title ===== */
        .section-title {
            font-size: clamp(24px, 3vw, 28px);
            font-weight: 700;
            line-height: 1.3;
            margin: 0 0 10px;
            color: var(--c-ink);
        }
        .section-sub {
            font-size: 15px;
            color: var(--c-text-muted);
            margin: 0 0 32px;
            line-height: 1.7;
        }
        .section-head {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }
        .section-head-left {
            flex: 1;
            min-width: 0;
        }
        .section-head-left h2 {
            margin-bottom: 6px;
        }
        .section-head-left p {
            margin: 0;
        }
        /* ===== Footer ===== */
        .site-footer {
            background-color: var(--c-ink);
            color: #C9C2B6;
            padding: 48px 0 32px;
            margin-top: 0;
        }
        .site-footer .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: #F5F0E8;
            margin-bottom: 14px;
        }
        .site-footer .footer-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--c-primary);
            color: #FFFFFF;
            font-size: 14px;
        }
        .site-footer p {
            font-size: 14px;
            line-height: 1.7;
            color: #C9C2B6;
            margin: 0 0 20px;
        }
        .site-footer h4 {
            font-size: 15px;
            font-weight: 700;
            color: #F5F0E8;
            margin: 0 0 14px;
            letter-spacing: 0.02em;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .footer-links a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: #C9C2B6;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        .footer-links a:hover {
            color: #FFFFFF;
        }
        .footer-links a i {
            font-size: 10px;
            color: var(--c-accent);
        }
        .footer-bottom {
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 4px;
            font-size: 13px;
            color: #A9A9A9;
        }
        .footer-bottom a {
            color: #C9C2B6;
            text-decoration: none;
            transition: color 0.2s ease;
            font-size: 13px;
        }
        .footer-bottom a:hover {
            color: #FFFFFF;
        }
        /* ===== Fixed bottom CTA ===== */
        .fixed-bottom-bar {
            position: fixed;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 950;
            background: #FFFFFF;
            border: 1px solid var(--c-line);
            border-radius: 12px;
            box-shadow: var(--shadow-float);
            padding: 12px 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            max-width: 560px;
            width: calc(100% - 40px);
        }
        .fixed-bottom-bar p {
            font-size: 14px;
            color: var(--c-ink);
            margin: 0;
            font-weight: 600;
            flex: 1;
            line-height: 1.4;
        }
        .fixed-bottom-bar .btn {
            flex-shrink: 0;
        }
        /* ===== Responsive ===== */
        @media screen and (max-width: 1024px) {
            .doc-layout {
                flex-direction: column;
                gap: 24px;
            }
            .doc-sidebar {
                width: 100%;
                position: static;
                max-height: none;
                overflow-y: visible;
                padding: 16px 20px;
            }
            .doc-sidebar ul {
                flex-direction: row;
                flex-wrap: wrap;
                gap: 6px;
            }
            .doc-sidebar ul a {
                padding: 6px 12px;
                font-size: 13px;
            }
            .nav-search {
                width: 180px;
            }
            .nav-links a {
                padding: 6px 10px;
                font-size: 13px;
            }
            .subscribe-box {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }
            .subscribe-form input {
                min-width: 100%;
                width: 100%;
            }
            .fixed-bottom-bar {
                bottom: 10px;
                width: calc(100% - 20px);
                padding: 10px 16px;
                gap: 10px;
            }
        }
        @media screen and (max-width: 768px) {
            .section {
                padding-top: var(--section-gap-mobile);
                padding-bottom: var(--section-gap-mobile);
            }
            .nav-container {
                gap: 10px;
                padding-top: 10px;
                padding-bottom: 10px;
            }
            .nav-links {
                display: none;
            }
            .nav-right {
                gap: 8px;
            }
            .nav-search {
                width: 140px;
            }
            .nav-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
            .mobile-menu.open {
                display: block;
            }
            .news-item {
                padding: 18px 18px;
            }
            .news-item h3 {
                font-size: 17px;
            }
            .news-item .news-summary {
                font-size: 14px;
            }
            .tags-section {
                padding: 18px 18px;
            }
            .hot-news-grid {
                grid-template-columns: 1fr;
            }
            .hot-news-card img {
                height: 160px;
            }
            .subscribe-box {
                padding: 28px 20px;
            }
            .compliance-bar {
                flex-direction: column;
                gap: 8px;
                padding: 14px 16px;
                font-size: 13px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }
            .footer-bottom span {
                margin: 0 !important;
            }
            .page-header h1 {
                font-size: 26px;
            }
            .breadcrumb {
                font-size: 12px;
                gap: 4px;
                margin-bottom: 8px;
            }
        }
        @media screen and (max-width: 520px) {
            .nav-container {
                flex-wrap: wrap;
            }
            .nav-search {
                width: 100%;
                order: 3;
                min-height: 38px;
            }
            .logo-link {
                font-size: 16px;
                gap: 8px;
            }
            .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 12px;
            }
            .nav-right {
                gap: 6px;
            }
            .lang-switch {
                font-size: 12px;
                padding: 3px 5px;
            }
            .fixed-bottom-bar {
                bottom: 0;
                border-radius: 0;
                width: 100%;
                left: 0;
                transform: none;
                padding: 10px 14px;
                gap: 8px;
                flex-wrap: wrap;
            }
            .fixed-bottom-bar p {
                font-size: 12px;
            }
            .fixed-bottom-bar .btn {
                font-size: 13px;
                padding: 8px 14px;
                min-height: 36px;
            }
            body {
                padding-bottom: 68px;
            }
            .hot-news-card img {
                height: 140px;
            }
            .news-item {
                padding: 14px 14px;
            }
            .news-item h3 {
                font-size: 16px;
            }
            .news-item .news-summary {
                font-size: 13px;
            }
            .section-head {
                flex-direction: column;
                gap: 8px;
            }
            .subscribe-form {
                flex-direction: column;
                width: 100%;
            }
            .subscribe-form input {
                width: 100%;
            }
            .subscribe-form .btn {
                width: 100%;
            }
        }

/* roulang page: category7 */
:root {
            --c-primary: #A52A2A;
            --c-primary-deep: #7E1F1F;
            --c-accent: #C79B4B;
            --c-bg: #F7F3EC;
            --c-surface: #FFFFFF;
            --c-ink: #1C1C1C;
            --c-text-muted: #6B6B6B;
            --c-line: rgba(28, 28, 28, 0.08);
            --c-green: #2F7D5B;
            --c-cream: #F0EAE0;
            --radius-card: 14px;
            --radius-btn: 8px;
            --radius-badge: 4px;
            --shadow-card: 0 8px 30px rgba(28, 28, 28, 0.06);
            --shadow-card-hover: 0 14px 40px rgba(28, 28, 28, 0.10);
            --shadow-float: 0 12px 40px rgba(165, 42, 42, 0.18);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            --transition-base: all 0.25s ease;
            --container-max: 1200px;
            --section-gap-desktop: 72px;
            --section-gap-mobile: 48px;
            --header-height: auto;
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--c-bg);
            color: var(--c-ink);
            font-size: 16px;
            line-height: 1.8;
            margin: 0;
            padding: 0;
            padding-bottom: 76px;
            min-width: 320px;
            font-variant-numeric: tabular-nums;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }
        a {
            color: var(--c-primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--c-primary-deep);
            text-decoration: none;
        }
        button,
        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 16px;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .section {
            padding-top: var(--section-gap-desktop);
            padding-bottom: var(--section-gap-desktop);
            position: relative;
        }
        .section-sm {
            padding-top: 48px;
            padding-bottom: 48px;
        }
        .section-tight {
            padding-top: 36px;
            padding-bottom: 36px;
        }
        .section-alt {
            background-color: #FBF8F3;
        }
        .section-dark {
            background-color: var(--c-ink);
            color: #F5F0E8;
        }
        .section-dark h2,
        .section-dark h3,
        .section-dark .section-lead {
            color: #F5F0E8;
        }
        .section-dark p {
            color: #C9C2B6;
        }
        .section-lead {
            font-size: 16px;
            color: var(--c-text-muted);
            max-width: 720px;
            margin: 0 auto 40px;
            line-height: 1.8;
        }
        .text-center {
            text-align: center;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            font-family: var(--font-sans);
            border: 1px solid transparent;
            cursor: pointer;
            transition: var(--transition-base);
            text-decoration: none;
            line-height: 1.2;
        }
        .btn-primary {
            background-color: var(--c-primary);
            color: #FFFFFF;
            border-color: var(--c-primary);
        }
        .btn-primary:hover {
            background-color: var(--c-primary-deep);
            border-color: var(--c-primary-deep);
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(165, 42, 42, 0.25);
        }
        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--c-primary);
            border: 1px solid var(--c-primary);
        }
        .btn-secondary:hover {
            background-color: rgba(165, 42, 42, 0.08);
            color: var(--c-primary-deep);
            border-color: var(--c-primary-deep);
            transform: translateY(-2px);
        }
        .btn-light {
            background-color: #FFFFFF;
            color: var(--c-primary);
            border-color: #FFFFFF;
        }
        .btn-light:hover {
            background-color: #F5EFE8;
            color: var(--c-primary-deep);
            border-color: #F5EFE8;
            transform: translateY(-2px);
        }
        .btn-sm {
            min-height: 36px;
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 6px;
            gap: 4px;
        }
        .btn-lg {
            min-height: 52px;
            padding: 14px 32px;
            font-size: 16px;
            border-radius: 10px;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.5;
            letter-spacing: 0.02em;
            background-color: rgba(199, 155, 75, 0.15);
            color: #8A6A2F;
            text-decoration: none;
        }
        .badge-red {
            background-color: rgba(165, 42, 42, 0.12);
            color: var(--c-primary-deep);
        }
        .badge-green {
            background-color: rgba(47, 125, 91, 0.12);
            color: var(--c-green);
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 900;
            background: #FFFFFF;
            border-bottom: 1px solid var(--c-line);
            box-shadow: 0 2px 12px rgba(28, 28, 28, 0.06);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            min-height: 68px;
            padding-top: 10px;
            padding-bottom: 10px;
        }
        .logo-link {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: var(--c-ink);
            font-weight: 800;
            font-size: 20px;
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .logo-link:hover {
            color: var(--c-primary-deep);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background-color: rgba(165, 42, 42, 0.08);
            border-radius: 10px;
            color: var(--c-primary);
            font-size: 18px;
        }
        .header-search {
            flex: 1;
            min-width: 180px;
            max-width: 280px;
            display: flex;
            align-items: center;
            gap: 6px;
            border: 1px solid var(--c-line);
            border-radius: var(--radius-btn);
            padding: 0 12px;
            background: #FAF7F2;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .header-search:focus-within {
            border-color: var(--c-primary);
            box-shadow: 0 0 0 3px rgba(165, 42, 42, 0.15);
            background: #FFFFFF;
        }
        .header-search i {
            color: var(--c-text-muted);
            font-size: 14px;
        }
        .header-search input {
            border: none;
            outline: none;
            background: transparent;
            padding: 8px 0;
            font-size: 14px;
            width: 100%;
        }
        .header-search input::placeholder {
            color: #9A968F;
        }
        .header-tools {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-left: auto;
        }
        .header-tools select {
            min-height: 36px;
            padding: 6px 12px;
            border-radius: 6px;
            border: 1px solid var(--c-line);
            background: #FFFFFF;
            font-size: 13px;
            color: var(--c-ink);
            cursor: pointer;
            outline: none;
        }
        .header-tools select:focus {
            border-color: var(--c-primary);
            box-shadow: 0 0 0 3px rgba(165, 42, 42, 0.15);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--c-ink);
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
        }
        .hamburger:hover {
            background: rgba(28, 28, 28, 0.06);
        }
        .site-nav {
            background: #FFFFFF;
            border-top: 1px solid rgba(28, 28, 28, 0.04);
        }
        .site-nav .container {
            display: flex;
            align-items: center;
            gap: 0;
            min-height: 48px;
            padding-top: 0;
            padding-bottom: 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }
        .site-nav a {
            display: inline-flex;
            align-items: center;
            padding: 14px 16px;
            font-size: 14px;
            font-weight: 600;
            color: var(--c-ink);
            text-decoration: none;
            border-bottom: 2px solid transparent;
            white-space: nowrap;
            transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
        }
        .site-nav a:hover {
            color: var(--c-primary);
            background: rgba(165, 42, 42, 0.04);
        }
        .site-nav a.active {
            color: var(--c-primary);
            border-bottom-color: var(--c-primary);
        }
        @media (max-width: 768px) {
            .site-header .container {
                flex-wrap: wrap;
                gap: 8px;
            }
            .header-search {
                order: 3;
                max-width: 100%;
                flex-basis: 100%;
            }
            .header-tools {
                margin-left: 0;
            }
            .hamburger {
                display: inline-flex;
            }
            .site-nav {
                display: none;
            }
            .site-nav.is-open {
                display: block;
            }
            .site-nav .container {
                flex-direction: column;
                align-items: stretch;
                overflow-x: visible;
            }
            .site-nav a {
                padding: 12px 16px;
                border-bottom: 1px solid var(--c-line);
                border-left: 3px solid transparent;
            }
            .site-nav a.active {
                border-bottom-color: var(--c-line);
                border-left-color: var(--c-primary);
            }
        }
        .breadcrumb-row {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--c-text-muted);
            flex-wrap: wrap;
            padding: 12px 0 4px;
        }
        .breadcrumb-row a {
            color: var(--c-text-muted);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        .breadcrumb-row a:hover {
            color: var(--c-primary);
        }
        .breadcrumb-row .sep {
            color: #B5B0A8;
            font-size: 12px;
        }
        .breadcrumb-row .current {
            color: var(--c-ink);
            font-weight: 600;
        }
        .service-page-title {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 800;
            line-height: 1.2;
            color: var(--c-ink);
            margin: 8px 0 12px;
            letter-spacing: 0.01em;
        }
        .service-page-desc {
            font-size: 16px;
            color: var(--c-text-muted);
            max-width: 720px;
            line-height: 1.8;
            margin-bottom: 8px;
        }
        .doc-layout {
            display: flex;
            gap: 32px;
            align-items: flex-start;
        }
        .doc-sidebar-wrap {
            flex: 0 0 240px;
            width: 240px;
            position: sticky;
            top: 80px;
            max-height: calc(100vh - 100px);
            overflow-y: auto;
            margin-bottom: 24px;
        }
        .doc-sidebar {
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            padding: 18px 16px;
            box-shadow: var(--shadow-card);
        }
        .doc-sidebar h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--c-ink);
            margin: 0 0 12px;
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .doc-sidebar h4 i {
            color: var(--c-primary);
            font-size: 14px;
        }
        .doc-sidebar ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .doc-sidebar ul li {
            margin: 0;
            padding: 0;
        }
        .doc-sidebar ul li a {
            display: block;
            padding: 8px 12px;
            font-size: 13px;
            font-weight: 500;
            color: var(--c-text-muted);
            text-decoration: none;
            border-radius: 6px;
            transition: all 0.2s ease;
            line-height: 1.5;
        }
        .doc-sidebar ul li a:hover {
            background: rgba(165, 42, 42, 0.06);
            color: var(--c-primary);
        }
        .doc-sidebar ul li a i {
            font-size: 12px;
            margin-right: 6px;
            opacity: 0.7;
        }
        .doc-main-content {
            flex: 1;
            min-width: 0;
        }
        .sidebar-toggle-btn {
            display: none;
            margin-bottom: 12px;
            padding: 10px 16px;
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--c-ink);
            cursor: pointer;
            gap: 8px;
            align-items: center;
            transition: all 0.2s ease;
        }
        .sidebar-toggle-btn:hover {
            border-color: var(--c-primary);
            color: var(--c-primary);
        }
        @media (max-width: 768px) {
            .doc-layout {
                flex-direction: column;
                gap: 0;
            }
            .doc-sidebar-wrap {
                position: static;
                flex: none;
                width: 100%;
                max-height: none;
                overflow-y: visible;
                margin-bottom: 16px;
                display: none;
            }
            .doc-sidebar-wrap.is-open {
                display: block;
            }
            .sidebar-toggle-btn {
                display: inline-flex;
            }
        }
        .help-card {
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            padding: 20px 22px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            margin-bottom: 16px;
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .help-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(165, 42, 42, 0.2);
        }
        .help-card-icon {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(165, 42, 42, 0.08);
            color: var(--c-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }
        .help-card-icon.gold {
            background: rgba(199, 155, 75, 0.14);
            color: #8A6A2F;
        }
        .help-card-icon.green {
            background: rgba(47, 125, 91, 0.12);
            color: var(--c-green);
        }
        .help-card-body {
            flex: 1;
        }
        .help-card-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--c-ink);
            margin: 0 0 6px;
            line-height: 1.4;
        }
        .help-card-body p {
            font-size: 14px;
            color: var(--c-text-muted);
            margin: 0 0 8px;
            line-height: 1.7;
        }
        .help-card-body .btn-sm {
            font-size: 12px;
        }
        .faq-list {
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .faq-list li {
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            box-shadow: 0 2px 10px rgba(28, 28, 28, 0.03);
            transition: border-color 0.2s ease;
            overflow: hidden;
        }
        .faq-list li:hover {
            border-color: rgba(165, 42, 42, 0.2);
        }
        .faq-list details {
            padding: 0;
        }
        .faq-list summary {
            list-style: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 20px;
            font-weight: 700;
            font-size: 15px;
            color: var(--c-ink);
            transition: background 0.2s ease;
            -webkit-tap-highlight-color: transparent;
        }
        .faq-list summary::-webkit-details-marker {
            display: none;
        }
        .faq-list summary:hover {
            background: rgba(165, 42, 42, 0.04);
        }
        .faq-list summary .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(165, 42, 42, 0.08);
            color: var(--c-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            transition: transform 0.2s ease;
        }
        .faq-list details[open] summary .faq-icon {
            transform: rotate(45deg);
        }
        .faq-list .faq-answer {
            padding: 0 20px 16px;
            font-size: 14px;
            color: var(--c-text-muted);
            line-height: 1.8;
        }
        .helper-note {
            background: rgba(199, 155, 75, 0.08);
            border: 1px solid rgba(199, 155, 75, 0.25);
            border-radius: var(--radius-card);
            padding: 16px 20px;
            display: flex;
            gap: 12px;
            align-items: flex-start;
        }
        .helper-note i {
            color: #8A6A2F;
            font-size: 18px;
            margin-top: 2px;
        }
        .helper-note p {
            margin: 0;
            font-size: 14px;
            color: #6B5A38;
            line-height: 1.7;
        }
        .contact-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            gap: 16px;
        }
        .contact-item {
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            padding: 18px 20px;
            box-shadow: 0 2px 10px rgba(28, 28, 28, 0.03);
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .contact-item i {
            font-size: 20px;
            color: var(--c-primary);
            width: 40px;
            height: 40px;
            background: rgba(165, 42, 42, 0.08);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .contact-item div {
            flex: 1;
        }
        .contact-item h4 {
            font-size: 14px;
            font-weight: 700;
            margin: 0 0 2px;
            color: var(--c-ink);
        }
        .contact-item p {
            margin: 0;
            font-size: 13px;
            color: var(--c-text-muted);
        }
        .responsible-banner {
            background: linear-gradient(135deg, rgba(165, 42, 42, 0.06) 0%, rgba(199, 155, 75, 0.08) 100%);
            border: 1px solid rgba(165, 42, 42, 0.15);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            display: flex;
            gap: 16px;
            align-items: flex-start;
            flex-wrap: wrap;
        }
        .responsible-banner i {
            font-size: 24px;
            color: var(--c-primary);
            flex-shrink: 0;
        }
        .responsible-banner h3 {
            font-size: 17px;
            font-weight: 700;
            margin: 0 0 6px;
            color: var(--c-ink);
        }
        .responsible-banner p {
            margin: 0;
            font-size: 14px;
            color: var(--c-text-muted);
            line-height: 1.7;
            flex: 1;
            min-width: 200px;
        }
        .subscribe-box {
            background: var(--c-surface);
            border: 1px solid var(--c-line);
            border-radius: var(--radius-card);
            padding: 22px 24px;
            box-shadow: var(--shadow-card);
            display: flex;
            gap: 16px;
            align-items: center;
            flex-wrap: wrap;
        }
        .subscribe-box h3 {
            font-size: 17px;
            font-weight: 700;
            margin: 0;
            color: var(--c-ink);
        }
        .subscribe-box p {
            margin: 0;
            font-size: 14px;
            color: var(--c-text-muted);
            flex: 1;
            min-width: 200px;
        }
        .site-footer {
            background: var(--c-ink);
            color: #F5F0E8;
            padding: 48px 0 24px;
            margin-top: 0;
        }
        .site-footer h4 {
            font-size: 16px;
            font-weight: 700;
            color: #F5F0E8;
            margin: 0 0 16px;
            letter-spacing: 0.02em;
        }
        .site-footer p {
            font-size: 14px;
            color: #C9C2B6;
            line-height: 1.7;
            margin: 0 0 12px;
        }
        .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #F5F0E8;
            margin-bottom: 12px;
        }
        .footer-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: rgba(165, 42, 42, 0.25);
            border-radius: 10px;
            color: #E8B4B4;
            font-size: 18px;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            color: #C9C2B6;
            font-size: 14px;
            text-decoration: none;
            transition: color 0.2s ease;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-links a:hover {
            color: #F5F0E8;
        }
        .footer-bottom {
            border-top: 1px solid rgba(245, 240, 232, 0.15);
            margin-top: 32px;
            padding-top: 16px;
            font-size: 13px;
            color: #A9A49A;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 4px;
        }
        .footer-bottom a {
            color: #C9C2B6;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        .footer-bottom a:hover {
            color: #F5F0E8;
        }
        @media (max-width: 768px) {
            .section {
                padding-top: var(--section-gap-mobile);
                padding-bottom: var(--section-gap-mobile);
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
            .help-card {
                flex-direction: column;
                gap: 12px;
            }
            .contact-grid {
                grid-template-columns: 1fr;
            }
            .subscribe-box {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .btn {
                padding: 10px 18px;
                font-size: 14px;
            }
            .help-card {
                padding: 16px 18px;
            }
            .faq-list summary {
                font-size: 14px;
                padding: 14px 16px;
            }
            .faq-list .faq-answer {
                padding: 0 16px 14px;
                font-size: 13px;
            }
        }