/* roulang page: index */
:root {
            --color-primary: #0F3D2E;
            --color-primary-dark: #0B2F23;
            --color-accent: #B8E24A;
            --color-score: #E85D3F;
            --color-bg: #F4F1EA;
            --color-bg-dark: #122B23;
            --color-white: #FFFFFF;
            --color-text: #1F2A24;
            --color-text-secondary: #5C6B62;
            --color-text-muted: #8A9B90;
            --color-border: rgba(15, 61, 46, 0.08);
            --color-border-light: #D9DEDB;
            --radius-card: 16px;
            --radius-button: 999px;
            --radius-input: 12px;
            --shadow-card: 0 2px 12px rgba(15, 61, 46, 0.05);
            --shadow-card-hover: 0 8px 28px rgba(15, 61, 46, 0.12);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-serif: 'Noto Serif CJK SC', 'STSong', 'SimSun', serif;
            --font-mono: 'DIN Alternate', 'Roboto Mono', 'SF Mono', monospace;
            --container-max: 1200px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-2xl: 80px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--color-accent);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }

        button,
        input {
            font-family: var(--font-sans);
            font-size: 16px;
            outline: none;
            border: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            width: 100%;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: var(--color-primary);
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.15);
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
        }

        .nav-container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: var(--spacing-md);
        }

        .nav-logo {
            font-size: 24px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--color-white);
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
        }
        .nav-logo:hover {
            opacity: 0.85;
            color: var(--color-white);
        }
        .nav-logo .logo-suffix {
            color: var(--color-accent);
            font-size: 14px;
            letter-spacing: 1px;
            font-weight: 400;
            margin-left: 4px;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
        }

        .nav-menu li {
            position: relative;
        }

        .nav-menu a {
            display: block;
            padding: 10px 16px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.8);
            border-radius: 8px;
            transition: all var(--transition-fast);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .nav-menu a:hover,
        .nav-menu a:focus {
            color: var(--color-white);
            background: rgba(184, 226, 74, 0.12);
        }

        .nav-menu a.active {
            color: var(--color-white);
            background: rgba(184, 226, 74, 0.18);
            box-shadow: inset 0 -2px 0 var(--color-accent);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.1);
            transition: background var(--transition-fast);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.2);
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-white);
            border-radius: 2px;
            transition: transform var(--transition-base), opacity var(--transition-base);
        }
        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* Hero */
        .hero {
            position: relative;
            min-height: 78vh;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/823917f07bb21ee1.webp');
            background-size: cover;
            background-position: center 40%;
            isolation: isolate;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 61, 46, 0.88) 0%, rgba(15, 61, 46, 0.62) 50%, rgba(18, 43, 35, 0.55) 100%);
            z-index: -1;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--color-bg) 0%, transparent 100%);
            z-index: 0;
        }
        .hero-content {
            position: relative;
            z-index: 1;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: var(--spacing-xl) var(--spacing-md);
            width: 100%;
        }
        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(184, 226, 74, 0.18);
            color: var(--color-accent);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            border-radius: var(--radius-button);
            border: 1px solid rgba(184, 226, 74, 0.3);
            margin-bottom: var(--spacing-md);
        }
        .hero h1 {
            font-size: clamp(32px, 5vw, 48px);
            font-weight: 800;
            color: var(--color-white);
            line-height: 1.25;
            letter-spacing: 2px;
            max-width: 720px;
            margin-bottom: var(--spacing-md);
        }
        .hero h1 .highlight {
            color: var(--color-accent);
        }
        .hero-subtitle {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
            max-width: 600px;
            margin-bottom: var(--spacing-lg);
            letter-spacing: 0.5px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-sm);
            margin-bottom: var(--spacing-lg);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            font-size: 16px;
            font-weight: 600;
            letter-spacing: 1px;
            border-radius: var(--radius-button);
            transition: all var(--transition-base);
            border: 2px solid transparent;
            text-align: center;
        }
        .btn-primary {
            background-color: var(--color-accent);
            color: var(--color-primary-dark);
            border-color: var(--color-accent);
        }
        .btn-primary:hover {
            background-color: #c8f25a;
            border-color: #c8f25a;
            color: var(--color-primary-dark);
            box-shadow: 0 4px 20px rgba(184, 226, 74, 0.35);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(184, 226, 74, 0.25);
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--color-white);
            border-color: rgba(255, 255, 255, 0.5);
        }
        .btn-secondary:hover {
            background-color: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.8);
            color: var(--color-white);
            transform: translateY(-1px);
        }
        .btn-secondary:active {
            transform: translateY(0);
        }
        .btn:focus-visible {
            outline: 3px solid var(--color-accent);
            outline-offset: 2px;
        }

        /* Data Bar */
        .data-bar {
            background-color: var(--color-white);
            border-top: 4px solid var(--color-accent);
            box-shadow: var(--shadow-card);
            margin-top: -40px;
            position: relative;
            z-index: 2;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }
        .data-bar .container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
        }
        .data-item {
            padding: var(--spacing-md) var(--spacing-lg);
            text-align: center;
            border-right: 1px solid var(--color-border);
            transition: background var(--transition-fast);
        }
        .data-item:last-child {
            border-right: none;
        }
        .data-item:hover {
            background: rgba(184, 226, 74, 0.06);
        }
        .data-number {
            font-family: var(--font-mono);
            font-size: 36px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .data-unit {
            font-size: 14px;
            color: var(--color-text-muted);
            font-weight: 400;
            margin-left: 2px;
        }
        .data-label {
            font-size: 14px;
            color: var(--color-text-secondary);
            margin-top: 4px;
            letter-spacing: 0.5px;
        }

        /* Section Common */
        .section {
            padding: var(--spacing-xl) 0;
        }
        .section-alt {
            background-color: var(--color-white);
        }
        .section-dark {
            background-color: var(--color-bg-dark);
            color: var(--color-white);
        }
        .section-header {
            margin-bottom: var(--spacing-lg);
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: var(--spacing-md);
            flex-wrap: wrap;
        }
        .section-header h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 1px;
            position: relative;
            padding-bottom: 10px;
        }
        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 48px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 2px;
        }
        .section-dark .section-header h2 {
            color: var(--color-white);
        }
        .section-header .section-link {
            font-size: 14px;
            color: var(--color-text-secondary);
            font-weight: 500;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }
        .section-header .section-link:hover {
            color: var(--color-accent);
        }

        /* Category Entrance */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }
        .category-card {
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .category-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(184, 226, 74, 0.5);
            transform: translateY(-2px);
        }
        .category-card .card-img {
            height: 180px;
            object-fit: cover;
            width: 100%;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }
        .category-card .card-body {
            padding: var(--spacing-md);
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-xs);
        }
        .category-card .card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.5px;
        }
        .category-card .card-desc {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.6;
            flex: 1;
        }
        .category-card .card-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--color-primary);
            background: rgba(184, 226, 74, 0.2);
            padding: 4px 12px;
            border-radius: var(--radius-button);
            letter-spacing: 1px;
            align-self: flex-start;
        }
        .category-card.large {
            grid-column: span 2;
            flex-direction: row;
        }
        .category-card.large .card-img {
            width: 50%;
            height: auto;
            min-height: 220px;
            border-radius: var(--radius-card) 0 0 var(--radius-card);
        }

        /* Match Focus */
        .match-focus-grid {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: var(--spacing-md);
        }
        .match-highlight {
            background: var(--color-primary);
            border-radius: var(--radius-card);
            padding: var(--spacing-lg);
            color: var(--color-white);
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }
        .match-highlight .match-status {
            font-size: 13px;
            color: var(--color-accent);
            font-weight: 600;
            letter-spacing: 2px;
        }
        .match-highlight h3 {
            font-size: 22px;
            font-weight: 700;
            line-height: 1.4;
        }
        .match-highlight .match-score {
            font-family: var(--font-mono);
            font-size: 48px;
            font-weight: 700;
            color: var(--color-accent);
            letter-spacing: 4px;
        }
        .match-highlight .match-info {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
        }
        .match-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }
        .match-item {
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            padding: var(--spacing-md);
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            transition: all var(--transition-base);
            flex-wrap: wrap;
        }
        .match-item:hover {
            border-color: rgba(184, 226, 74, 0.6);
            box-shadow: var(--shadow-card-hover);
            transform: translateX(4px);
        }
        .match-item .match-time {
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-muted);
            min-width: 60px;
        }
        .match-item .match-teams {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            flex: 1;
        }
        .match-item .match-mini-score {
            font-family: var(--font-mono);
            font-size: 20px;
            font-weight: 700;
            color: var(--color-score);
        }
        .match-item .match-venue {
            font-size: 13px;
            color: var(--color-text-muted);
            min-width: 80px;
            text-align: right;
        }

        /* Beijing Home */
        .bj-home-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-lg);
            align-items: center;
        }
        .bj-home-text {
            font-size: 16px;
            color: var(--color-text);
            line-height: 2;
        }
        .bj-home-text p {
            margin-bottom: var(--spacing-md);
        }
        .bj-home-text .highlight-text {
            color: var(--color-primary);
            font-weight: 600;
        }
        .bj-home-img {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card-hover);
        }
        .bj-home-img img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            border-radius: var(--radius-card);
        }
        .bj-home-img .img-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: var(--spacing-md);
            background: linear-gradient(to top, rgba(15, 61, 46, 0.85), transparent);
            color: var(--color-white);
            font-size: 14px;
            font-weight: 500;
            border-radius: 0 0 var(--radius-card) var(--radius-card);
        }

        /* Data Research */
        .research-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-lg);
            align-items: stretch;
        }
        .research-text {
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            padding: var(--spacing-lg);
            font-size: 15px;
            line-height: 2;
            color: var(--color-text);
        }
        .research-text p {
            margin-bottom: var(--spacing-sm);
        }
        .research-chart-placeholder {
            background: var(--color-bg-dark);
            border-radius: var(--radius-card);
            padding: var(--spacing-lg);
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: var(--spacing-md);
            min-height: 400px;
        }
        .chart-title {
            font-size: 16px;
            color: var(--color-accent);
            font-weight: 600;
            letter-spacing: 1px;
        }
        .chart-bars {
            display: flex;
            align-items: flex-end;
            gap: var(--spacing-sm);
            height: 200px;
            padding-top: var(--spacing-md);
        }
        .chart-bar {
            flex: 1;
            background: var(--color-accent);
            border-radius: 6px 6px 0 0;
            opacity: 0.8;
            transition: all var(--transition-base);
            position: relative;
            min-height: 20px;
        }
        .chart-bar:hover {
            opacity: 1;
            transform: scaleY(1.02);
            transform-origin: bottom;
        }
        .chart-bar .bar-label {
            position: absolute;
            bottom: -28px;
            left: 50%;
            transform: translateX(-50%);
            font-size: 11px;
            color: var(--color-text-muted);
            white-space: nowrap;
        }
        .chart-bar .bar-value {
            position: absolute;
            top: -24px;
            left: 50%;
            transform: translateX(-50%);
            font-family: var(--font-mono);
            font-size: 13px;
            color: var(--color-accent);
            font-weight: 600;
        }

        /* Community Timeline */
        .timeline-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
            position: relative;
            padding-left: var(--spacing-md);
        }
        .timeline-list::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: rgba(184, 226, 74, 0.3);
            border-radius: 2px;
        }
        .timeline-item {
            position: relative;
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            padding: var(--spacing-md);
            transition: all var(--transition-base);
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -20px;
            top: 20px;
            width: 10px;
            height: 10px;
            background: var(--color-accent);
            border-radius: 50%;
            box-shadow: 0 0 0 3px rgba(184, 226, 74, 0.25);
        }
        .timeline-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(184, 226, 74, 0.5);
        }
        .timeline-header {
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
            flex-wrap: wrap;
            margin-bottom: 6px;
        }
        .timeline-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-primary);
            flex: 1;
        }
        .timeline-meta {
            font-size: 13px;
            color: var(--color-text-muted);
            display: flex;
            gap: var(--spacing-sm);
        }
        .timeline-excerpt {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.6;
        }

        /* Equipment Tickets */
        .equipment-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
        }
        .equipment-card {
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .equipment-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: rgba(184, 226, 74, 0.5);
        }
        .equipment-card .equip-img {
            height: 160px;
            object-fit: cover;
            width: 100%;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }
        .equipment-card .equip-body {
            padding: var(--spacing-md);
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .equipment-card .equip-tag {
            font-size: 12px;
            font-weight: 600;
            color: var(--color-score);
            letter-spacing: 1px;
        }
        .equipment-card .equip-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.4;
        }
        .equipment-card .equip-price {
            font-family: var(--font-mono);
            font-size: 20px;
            font-weight: 700;
            color: var(--color-score);
        }
        .equipment-card .equip-price .price-unit {
            font-size: 12px;
            font-weight: 400;
            color: var(--color-text-muted);
        }

        /* Brand Intro */
        .brand-intro {
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            padding: var(--spacing-xl) var(--spacing-lg);
        }
        .brand-intro h2 {
            font-size: clamp(24px, 3vw, 30px);
            color: var(--color-primary);
            margin-bottom: var(--spacing-lg);
            letter-spacing: 1px;
            position: relative;
            padding-bottom: 10px;
        }
        .brand-intro h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 48px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 2px;
        }
        .brand-intro .intro-text {
            font-family: var(--font-serif);
            font-size: 16px;
            line-height: 2.1;
            color: var(--color-text);
            column-count: 1;
        }
        .brand-intro .intro-text p {
            margin-bottom: var(--spacing-md);
            text-indent: 2em;
        }
        .brand-intro .intro-text p:last-of-type {
            text-indent: 0;
        }

        /* Content Aggregation */
        .content-agg-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }
        .content-agg-card {
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            padding: var(--spacing-md);
            transition: all var(--transition-base);
        }
        .content-agg-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(184, 226, 74, 0.4);
        }
        .content-agg-card .agg-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--color-primary);
            background: rgba(184, 226, 74, 0.18);
            padding: 3px 10px;
            border-radius: var(--radius-button);
            letter-spacing: 1px;
            margin-bottom: var(--spacing-xs);
        }
        .content-agg-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 6px;
            line-height: 1.5;
        }
        .content-agg-card .agg-excerpt {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: var(--spacing-xs);
        }
        .content-agg-card .agg-meta {
            font-size: 13px;
            color: var(--color-text-muted);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }
        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: rgba(184, 226, 74, 0.4);
        }
        .faq-question {
            width: 100%;
            padding: var(--spacing-md) var(--spacing-lg);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-sm);
            font-size: 16px;
            font-weight: 600;
            color: var(--color-primary);
            text-align: left;
            transition: background var(--transition-fast);
        }
        .faq-question:hover {
            background: rgba(184, 226, 74, 0.06);
        }
        .faq-question .faq-icon {
            font-size: 24px;
            font-weight: 300;
            color: var(--color-text-muted);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            color: var(--color-accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 var(--spacing-lg);
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.8;
            background: #F8F6F0;
            border-radius: 0 0 var(--radius-card) var(--radius-card);
        }
        .faq-item.open .faq-answer {
            max-height: 200px;
            padding: var(--spacing-md) var(--spacing-lg);
        }

        /* Media Partners */
        .partner-grid {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-sm);
            justify-content: center;
        }
        .partner-badge {
            padding: 12px 24px;
            background: var(--color-white);
            border-radius: var(--radius-button);
            border: 1px solid var(--color-border);
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-secondary);
            letter-spacing: 1px;
            transition: all var(--transition-fast);
            cursor: default;
        }
        .partner-badge:hover {
            border-color: var(--color-accent);
            color: var(--color-primary);
            background: rgba(184, 226, 74, 0.06);
        }

        /* Subscribe CTA */
        .cta-box {
            background: var(--color-primary);
            border-radius: var(--radius-card);
            padding: var(--spacing-xl);
            text-align: center;
            color: var(--color-white);
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(184, 226, 74, 0.15), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-box h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-white);
            margin-bottom: var(--spacing-sm);
            letter-spacing: 1px;
        }
        .cta-box p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: var(--spacing-md);
        }
        .cta-form {
            display: flex;
            gap: var(--spacing-sm);
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        .cta-form input[type="email"] {
            padding: 14px 20px;
            font-size: 15px;
            border-radius: var(--radius-input);
            border: 1px solid rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.1);
            color: var(--color-white);
            width: 280px;
            transition: all var(--transition-fast);
            placeholder-color: rgba(255, 255, 255, 0.5);
        }
        .cta-form input[type="email"]::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .cta-form input[type="email"]:focus {
            border-color: var(--color-accent);
            background: rgba(255, 255, 255, 0.15);
            outline: none;
        }
        .cta-form .btn-primary {
            padding: 14px 24px;
            font-size: 15px;
        }

        /* City Locations */
        .location-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }
        .location-card {
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            padding: var(--spacing-md);
            display: flex;
            gap: var(--spacing-sm);
            align-items: flex-start;
            transition: all var(--transition-base);
        }
        .location-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(184, 226, 74, 0.5);
        }
        .location-icon {
            font-size: 28px;
            flex-shrink: 0;
        }
        .location-info h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 4px;
        }
        .location-info p {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.6;
        }

        /* Latest Articles */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
        }
        .article-card {
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .article-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .article-card .article-img {
            height: 140px;
            object-fit: cover;
            width: 100%;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }
        .article-card .article-body {
            padding: var(--spacing-sm);
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .article-card .article-tag {
            font-size: 12px;
            font-weight: 600;
            color: var(--color-primary);
            letter-spacing: 0.5px;
        }
        .article-card .article-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card .article-summary {
            font-size: 13px;
            color: var(--color-text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card .article-meta {
            font-size: 12px;
            color: var(--color-text-muted);
            margin-top: auto;
        }

        /* Footer */
        .site-footer {
            background-color: var(--color-primary);
            color: rgba(255, 255, 255, 0.8);
            padding: var(--spacing-xl) 0 var(--spacing-sm);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-lg);
            padding-bottom: var(--spacing-lg);
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        }
        .footer-brand .footer-logo {
            font-size: 28px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--color-white);
            margin-bottom: var(--spacing-sm);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
            max-width: 320px;
        }
        .footer-col h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-accent);
            letter-spacing: 1px;
            margin-bottom: var(--spacing-sm);
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            padding-top: var(--spacing-sm);
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            line-height: 2;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: underline;
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: var(--color-accent);
        }

        /* Mobile nav drawer */
        .nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .nav-overlay.show {
            display: block;
            opacity: 1;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-card.large {
                grid-column: span 2;
            }
            .equipment-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .article-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .match-focus-grid {
                grid-template-columns: 1fr;
            }
            .research-layout {
                grid-template-columns: 1fr;
            }
            .bj-home-layout {
                grid-template-columns: 1fr;
            }
            .location-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .content-agg-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-container {
                height: 60px;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: var(--color-primary);
                flex-direction: column;
                padding: var(--spacing-sm);
                gap: 2px;
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
                border-radius: 0 0 var(--radius-card) var(--radius-card);
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                padding: 12px 16px;
                font-size: 16px;
                border-radius: 8px;
            }
            .nav-toggle {
                display: flex;
            }
            .hero {
                min-height: 60vh;
            }
            .hero h1 {
                font-size: 28px;
                letter-spacing: 1px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .data-bar .container {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-item {
                border-right: none;
                border-bottom: 1px solid var(--color-border);
                padding: var(--spacing-sm);
            }
            .data-item:nth-child(odd) {
                border-right: 1px solid var(--color-border);
            }
            .data-item:nth-child(3),
            .data-item:nth-child(4) {
                border-bottom: none;
            }
            .data-number {
                font-size: 28px;
            }
            .section {
                padding: var(--spacing-lg) 0;
            }
            .category-grid {
                grid-template-columns: 1fr;
            }
            .category-card.large {
                grid-column: span 1;
                flex-direction: column;
            }
            .category-card.large .card-img {
                width: 100%;
                border-radius: var(--radius-card) var(--radius-card) 0 0;
                min-height: auto;
                height: 180px;
            }
            .equipment-grid {
                grid-template-columns: 1fr;
            }
            .article-grid {
                grid-template-columns: 1fr;
            }
            .location-grid {
                grid-template-columns: 1fr;
            }
            .content-agg-grid {
                grid-template-columns: 1fr;
            }
            .match-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }
            .match-item .match-venue {
                text-align: left;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
            .cta-form input[type="email"] {
                width: 100%;
                max-width: none;
            }
            .brand-intro {
                padding: var(--spacing-lg) var(--spacing-md);
            }
            .section-header {
                flex-direction: column;
                align-items: flex-start;
            }
            .timeline-list {
                padding-left: 24px;
            }
        }

        @media (max-width: 520px) {
            .hero {
                min-height: 55vh;
            }
            .hero h1 {
                font-size: 24px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .btn {
                padding: 12px 20px;
                font-size: 15px;
                width: 100%;
            }
            .data-bar .container {
                grid-template-columns: 1fr;
            }
            .data-item {
                border-right: none !important;
                border-bottom: 1px solid var(--color-border);
            }
            .data-item:last-child {
                border-bottom: none;
            }
            .match-highlight .match-score {
                font-size: 36px;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #0F3D2E;
            --color-primary-dark: #0B2F23;
            --color-accent: #B8E24A;
            --color-score: #E85D3F;
            --color-bg: #F4F1EA;
            --color-bg-dark: #122B23;
            --color-white: #FFFFFF;
            --color-text: #1F2A24;
            --color-text-secondary: #5C6B62;
            --color-text-muted: #8A9B90;
            --color-border: rgba(15, 61, 46, 0.08);
            --color-border-light: #D9DEDB;
            --radius-card: 16px;
            --radius-button: 999px;
            --radius-input: 12px;
            --shadow-card: 0 2px 12px rgba(15, 61, 46, 0.05);
            --shadow-card-hover: 0 8px 28px rgba(15, 61, 46, 0.12);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-serif: 'Noto Serif CJK SC', 'STSong', 'SimSun', serif;
            --font-mono: 'DIN Alternate', 'Roboto Mono', 'SF Mono', monospace;
            --container-max: 1200px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-2xl: 80px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }
        button,
        input {
            font-family: var(--font-sans);
            font-size: 16px;
            outline: none;
            border: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            width: 100%;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: var(--color-primary);
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.15);
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
        }
        .nav-container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: var(--spacing-md);
        }
        .nav-logo {
            font-size: 24px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--color-white);
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
        }
        .nav-logo:hover {
            opacity: 0.85;
            color: var(--color-white);
        }
        .nav-logo .logo-suffix {
            color: var(--color-accent);
            font-size: 14px;
            letter-spacing: 1px;
            font-weight: 400;
            margin-left: 4px;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-menu li {
            position: relative;
        }
        .nav-menu a {
            display: block;
            padding: 10px 16px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.8);
            border-radius: 8px;
            transition: all var(--transition-fast);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .nav-menu a:hover,
        .nav-menu a:focus {
            color: var(--color-white);
            background: rgba(184, 226, 74, 0.12);
        }
        .nav-menu a.active {
            color: var(--color-white);
            background: rgba(184, 226, 74, 0.18);
            box-shadow: inset 0 -2px 0 var(--color-accent);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.1);
            transition: background var(--transition-fast);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.2);
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-white);
            border-radius: 2px;
            transition: transform var(--transition-base), opacity var(--transition-base);
        }
        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .breadcrumb-nav {
            padding: var(--spacing-md) 0 var(--spacing-sm);
            font-size: 14px;
            color: var(--color-text-muted);
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
            flex-wrap: wrap;
        }
        .breadcrumb-nav a {
            color: var(--color-text-secondary);
            transition: color var(--transition-fast);
        }
        .breadcrumb-nav a:hover {
            color: var(--color-primary);
        }
        .breadcrumb-nav .separator {
            color: var(--color-text-muted);
            user-select: none;
        }
        .breadcrumb-nav .current {
            color: var(--color-primary);
            font-weight: 600;
        }
        .category-hero {
            position: relative;
            padding: var(--spacing-xl) 0 var(--spacing-lg);
            background-image: linear-gradient(135deg, rgba(15, 61, 46, 0.92) 0%, rgba(18, 43, 35, 0.88) 100%), url('/assets/images/83b9ceeb3b0cb4ed.jpg');
            background-size: cover;
            background-position: center 30%;
            border-radius: 0 0 var(--radius-card) var(--radius-card);
            margin-bottom: var(--spacing-lg);
            color: var(--color-white);
            overflow: hidden;
        }
        .category-hero .category-hero-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            display: flex;
            flex-wrap: wrap;
            align-items: flex-end;
            justify-content: space-between;
            gap: var(--spacing-md);
        }
        .category-hero h1 {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 700;
            letter-spacing: 1px;
            margin: 0 0 var(--spacing-sm);
            color: var(--color-white);
            line-height: 1.3;
        }
        .category-hero .category-hero-sub {
            font-size: 16px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            margin: 0;
        }
        .category-hero .category-hero-meta {
            display: flex;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            margin-top: var(--spacing-sm);
        }
        .category-hero .category-hero-meta span {
            background: rgba(255, 255, 255, 0.12);
            padding: 6px 14px;
            border-radius: var(--radius-button);
            letter-spacing: 0.5px;
            font-weight: 500;
        }
        .section-pad {
            padding: var(--spacing-lg) 0;
        }
        .section-pad-sm {
            padding: var(--spacing-md) 0;
        }
        .section-title-row {
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            gap: var(--spacing-md);
            margin-bottom: var(--spacing-lg);
            flex-wrap: wrap;
        }
        .section-title-row h2 {
            font-size: clamp(22px, 3vw, 28px);
            font-weight: 700;
            letter-spacing: 0.5px;
            margin: 0;
            color: var(--color-text);
            position: relative;
            padding-left: 16px;
        }
        .section-title-row h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 5px;
            height: 26px;
            background: var(--color-accent);
            border-radius: 4px;
        }
        .section-title-row .section-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color var(--transition-fast);
        }
        .section-title-row .section-link:hover {
            color: var(--color-primary);
        }
        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }
        .article-card {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .article-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-accent);
        }
        .article-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            border-radius: 0;
            background: var(--color-bg);
        }
        .article-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-base);
        }
        .article-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .article-card .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--color-primary);
            color: var(--color-white);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.5px;
            padding: 4px 12px;
            border-radius: var(--radius-button);
            z-index: 2;
        }
        .article-card .card-tag.tag-accent {
            background: var(--color-score);
        }
        .article-card .card-body {
            padding: var(--spacing-md);
            display: flex;
            flex-direction: column;
            flex: 1;
            gap: var(--spacing-xs);
        }
        .article-card .card-body h3 {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.5;
            margin: 0;
            color: var(--color-text);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card .card-body p {
            font-size: 14px;
            line-height: 1.6;
            color: var(--color-text-secondary);
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card .card-meta {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-size: 12px;
            color: var(--color-text-muted);
            margin-top: auto;
            padding-top: var(--spacing-xs);
            border-top: 1px solid var(--color-border);
        }
        .article-card .card-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .rank-list {
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            padding: var(--spacing-md);
            box-shadow: var(--shadow-card);
        }
        .rank-list .rank-item {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            padding: 10px 0;
            border-bottom: 1px solid var(--color-border);
        }
        .rank-list .rank-item:last-child {
            border-bottom: none;
        }
        .rank-list .rank-number {
            font-family: var(--font-mono);
            font-size: 20px;
            font-weight: 700;
            color: var(--color-primary);
            width: 40px;
            flex-shrink: 0;
            text-align: center;
        }
        .rank-list .rank-number.highlight {
            color: var(--color-score);
        }
        .rank-list .rank-info {
            flex: 1;
            min-width: 0;
        }
        .rank-list .rank-info .rank-name {
            font-weight: 600;
            font-size: 15px;
            color: var(--color-text);
        }
        .rank-list .rank-info .rank-desc {
            font-size: 13px;
            color: var(--color-text-muted);
        }
        .rank-list .rank-value {
            font-family: var(--font-mono);
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text-secondary);
            white-space: nowrap;
        }
        .sub-channel-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-sm);
        }
        .sub-channel-card {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: var(--spacing-md);
            text-align: center;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: var(--spacing-xs);
        }
        .sub-channel-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-accent);
        }
        .sub-channel-card .channel-icon {
            font-size: 32px;
            line-height: 1;
            margin-bottom: 4px;
        }
        .sub-channel-card h3 {
            font-size: 16px;
            font-weight: 700;
            margin: 0;
            color: var(--color-text);
        }
        .sub-channel-card p {
            font-size: 13px;
            color: var(--color-text-muted);
            margin: 0;
            line-height: 1.5;
        }
        .horizontal-scroll {
            display: flex;
            gap: var(--spacing-sm);
            overflow-x: auto;
            padding-bottom: var(--spacing-sm);
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--color-primary) var(--color-border);
        }
        .horizontal-scroll::-webkit-scrollbar {
            height: 6px;
        }
        .horizontal-scroll::-webkit-scrollbar-track {
            background: var(--color-border);
            border-radius: 3px;
        }
        .horizontal-scroll::-webkit-scrollbar-thumb {
            background: var(--color-primary);
            border-radius: 3px;
        }
        .horizontal-scroll .scroll-card {
            flex: 0 0 300px;
            scroll-snap-align: start;
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }
        .horizontal-scroll .scroll-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }
        .horizontal-scroll .scroll-card .img-wrap {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            border-radius: 0;
        }
        .horizontal-scroll .scroll-card .img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-base);
        }
        .horizontal-scroll .scroll-card:hover .img-wrap img {
            transform: scale(1.04);
        }
        .horizontal-scroll .scroll-card .scroll-body {
            padding: var(--spacing-sm);
        }
        .horizontal-scroll .scroll-card .scroll-body h3 {
            font-size: 15px;
            font-weight: 700;
            margin: 0 0 4px;
            color: var(--color-text);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .horizontal-scroll .scroll-card .scroll-body p {
            font-size: 13px;
            color: var(--color-text-muted);
            margin: 0;
        }
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: 12px;
            margin-bottom: var(--spacing-sm);
            overflow: hidden;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        .faq-item:hover {
            border-color: rgba(15, 61, 46, 0.2);
            box-shadow: var(--shadow-card);
        }
        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-sm);
            width: 100%;
            padding: var(--spacing-md);
            text-align: left;
            font-weight: 600;
            font-size: 16px;
            color: var(--color-text);
            background: none;
            border: none;
            cursor: pointer;
            transition: color var(--transition-fast);
        }
        .faq-item .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-item .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--color-primary);
            transition: transform var(--transition-base);
            font-weight: 400;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 var(--spacing-md);
            color: var(--color-text-secondary);
            font-size: 15px;
            line-height: 1.7;
            background: #F8F6F0;
            border-top: 0 solid var(--color-border);
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: var(--spacing-md);
            border-top: 1px solid rgba(15, 61, 46, 0.1);
        }
        .cta-subscribe {
            background: var(--color-bg-dark);
            border-radius: var(--radius-card);
            padding: var(--spacing-lg) var(--spacing-md);
            text-align: center;
            color: var(--color-white);
            background-image: linear-gradient(135deg, rgba(184, 226, 74, 0.08) 0%, transparent 100%);
        }
        .cta-subscribe h2 {
            font-size: clamp(22px, 3vw, 28px);
            font-weight: 700;
            margin: 0 0 var(--spacing-sm);
            color: var(--color-white);
        }
        .cta-subscribe p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 520px;
            margin: 0 auto var(--spacing-md);
            line-height: 1.7;
        }
        .cta-subscribe .subscribe-form {
            display: flex;
            gap: var(--spacing-sm);
            max-width: 420px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-subscribe .subscribe-form input {
            flex: 1;
            min-width: 200px;
            padding: 12px 18px;
            border-radius: var(--radius-input);
            border: 1px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.1);
            color: var(--color-white);
            font-size: 15px;
            transition: border-color var(--transition-fast), background var(--transition-fast);
        }
        .cta-subscribe .subscribe-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .cta-subscribe .subscribe-form input:focus {
            border-color: var(--color-accent);
            background: rgba(255, 255, 255, 0.15);
        }
        .cta-subscribe .btn-primary-custom {
            background: var(--color-accent);
            color: var(--color-primary-dark);
            font-weight: 700;
            padding: 12px 28px;
            border-radius: var(--radius-button);
            transition: background var(--transition-fast), transform var(--transition-fast);
            letter-spacing: 0.5px;
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .cta-subscribe .btn-primary-custom:hover {
            background: #a8d83a;
            transform: translateY(-1px);
        }
        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: var(--radius-button);
            border: 1.5px solid var(--color-primary);
            color: var(--color-primary);
            font-weight: 600;
            font-size: 15px;
            transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
        }
        .btn-outline-custom:hover {
            background: rgba(15, 61, 46, 0.06);
            color: var(--color-primary-dark);
            transform: translateY(-1px);
        }
        .site-footer {
            background-color: var(--color-primary);
            color: rgba(255, 255, 255, 0.8);
            padding: var(--spacing-xl) 0 var(--spacing-md);
            margin-top: var(--spacing-xl);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }
        .footer-brand .footer-logo {
            font-size: 24px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--color-white);
            margin-bottom: var(--spacing-sm);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.7);
            max-width: 320px;
            margin: 0;
        }
        .footer-col h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-white);
            letter-spacing: 0.5px;
            margin: 0 0 var(--spacing-sm);
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition-fast);
        }
        .footer-col ul a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: var(--spacing-md);
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-sm);
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom p {
            margin: 0;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: var(--color-accent);
        }
        @media (max-width: 1024px) {
            .article-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .sub-channel-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
                flex-direction: column;
            }
            .nav-menu {
                position: fixed;
                top: 68px;
                left: 0;
                right: 0;
                background: var(--color-primary);
                flex-direction: column;
                padding: var(--spacing-md);
                gap: 8px;
                transform: translateY(-120%);
                transition: transform var(--transition-base);
                z-index: 999;
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
                border-radius: 0 0 var(--radius-card) var(--radius-card);
            }
            .nav-menu.open {
                transform: translateY(0);
            }
            .nav-menu a {
                width: 100%;
                text-align: center;
                padding: 12px 16px;
                font-size: 16px;
            }
            .category-hero {
                padding: var(--spacing-lg) 0;
            }
            .category-hero .category-hero-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .article-grid {
                grid-template-columns: 1fr;
            }
            .sub-channel-grid {
                grid-template-columns: 1fr 1fr;
            }
            .horizontal-scroll .scroll-card {
                flex: 0 0 260px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 4px;
            }
            .section-title-row {
                flex-direction: column;
                gap: var(--spacing-xs);
            }
        }
        @media (max-width: 520px) {
            .sub-channel-grid {
                grid-template-columns: 1fr;
            }
            .horizontal-scroll .scroll-card {
                flex: 0 0 220px;
            }
            .cta-subscribe .subscribe-form {
                flex-direction: column;
            }
            .cta-subscribe .subscribe-form input {
                min-width: 100%;
            }
            .nav-logo {
                font-size: 20px;
                letter-spacing: 1px;
            }
            .nav-logo .logo-suffix {
                font-size: 12px;
            }
            .category-hero h1 {
                font-size: 26px;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #0F3D2E;
            --color-primary-dark: #0B2F23;
            --color-accent: #B8E24A;
            --color-score: #E85D3F;
            --color-bg: #F4F1EA;
            --color-bg-dark: #122B23;
            --color-white: #FFFFFF;
            --color-text: #1F2A24;
            --color-text-secondary: #5C6B62;
            --color-text-muted: #8A9B90;
            --color-border: rgba(15, 61, 46, 0.08);
            --color-border-light: #D9DEDB;
            --radius-card: 16px;
            --radius-button: 999px;
            --radius-input: 12px;
            --shadow-card: 0 2px 12px rgba(15, 61, 46, 0.05);
            --shadow-card-hover: 0 8px 28px rgba(15, 61, 46, 0.12);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-serif: 'Noto Serif CJK SC', 'STSong', 'SimSun', serif;
            --font-mono: 'DIN Alternate', 'Roboto Mono', 'SF Mono', monospace;
            --container-max: 1200px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-2xl: 80px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--color-accent);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }

        button,
        input {
            font-family: var(--font-sans);
            font-size: 16px;
            outline: none;
            border: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            width: 100%;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: var(--color-primary);
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.15);
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
        }

        .nav-container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: var(--spacing-md);
        }

        .nav-logo {
            font-size: 24px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--color-white);
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
        }

        .nav-logo:hover {
            opacity: 0.85;
            color: var(--color-white);
        }

        .nav-logo .logo-suffix {
            color: var(--color-accent);
            font-size: 14px;
            letter-spacing: 1px;
            font-weight: 400;
            margin-left: 4px;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
        }

        .nav-menu li {
            position: relative;
        }

        .nav-menu a {
            display: block;
            padding: 10px 16px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.8);
            border-radius: 8px;
            transition: all var(--transition-fast);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .nav-menu a:hover,
        .nav-menu a:focus {
            color: var(--color-white);
            background: rgba(184, 226, 74, 0.12);
        }

        .nav-menu a.active {
            color: var(--color-white);
            background: rgba(184, 226, 74, 0.18);
            box-shadow: inset 0 -2px 0 var(--color-accent);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.1);
            transition: background var(--transition-fast);
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.2);
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-white);
            border-radius: 2px;
            transition: transform var(--transition-base), opacity var(--transition-base);
        }

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .breadcrumb-area {
            background: var(--color-bg);
            padding: var(--spacing-sm) 0;
            border-bottom: 1px solid var(--color-border);
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--color-text-muted);
            flex-wrap: wrap;
        }

        .breadcrumb-nav a {
            color: var(--color-text-secondary);
            transition: color var(--transition-fast);
        }

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

        .breadcrumb-nav .separator {
            color: var(--color-text-muted);
            user-select: none;
        }

        .breadcrumb-nav .current {
            color: var(--color-primary);
            font-weight: 500;
        }

        .category-header-section {
            background: var(--color-bg);
            padding: var(--spacing-lg) 0;
            border-bottom: 1px solid var(--color-border);
        }

        .category-header-content {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        .category-header-content h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 2px;
            margin: 0;
            line-height: 1.3;
        }

        .category-header-content .category-subtitle {
            font-size: 18px;
            color: var(--color-text-secondary);
            font-weight: 400;
            line-height: 1.7;
            margin: 0;
        }

        .category-intro-section {
            padding: var(--spacing-lg) 0;
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border);
        }

        .category-intro-text {
            font-size: 16px;
            line-height: 1.9;
            color: var(--color-text);
            max-width: 880px;
        }

        .category-intro-text strong {
            color: var(--color-primary);
            font-weight: 600;
        }

        .match-list-section {
            padding: var(--spacing-xl) 0;
            background: var(--color-bg);
        }

        .section-title-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: var(--spacing-lg);
            flex-wrap: wrap;
            gap: var(--spacing-sm);
        }

        .section-title-row h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 1px;
            position: relative;
            padding-bottom: 10px;
            margin: 0;
        }

        .section-title-row h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 3px;
        }

        .section-more-link {
            display: inline-block;
            padding: 10px 24px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-primary);
            border: 1px solid var(--color-primary);
            border-radius: var(--radius-button);
            transition: all var(--transition-fast);
            background: transparent;
        }

        .section-more-link:hover {
            background: var(--color-primary);
            color: var(--color-white);
        }

        .match-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }

        .match-card {
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .match-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-accent);
        }

        .match-card-image {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            border-radius: 0;
        }

        .match-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-base);
        }

        .match-card:hover .match-card-image img {
            transform: scale(1.05);
        }

        .match-card-image .match-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--color-primary);
            color: var(--color-white);
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 500;
            border-radius: 20px;
            letter-spacing: 0.5px;
            z-index: 2;
        }

        .match-card-image .match-status {
            position: absolute;
            top: 12px;
            right: 12px;
            background: var(--color-score);
            color: var(--color-white);
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 500;
            border-radius: 20px;
            letter-spacing: 0.5px;
            z-index: 2;
        }

        .match-card-body {
            padding: var(--spacing-md);
            display: flex;
            flex-direction: column;
            gap: var(--spacing-xs);
            flex: 1;
        }

        .match-card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.4;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .match-card-summary {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.6;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .match-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: auto;
            padding-top: var(--spacing-xs);
            font-size: 13px;
            color: var(--color-text-muted);
        }

        .match-card-meta .match-time {
            font-family: var(--font-mono);
            letter-spacing: 0.5px;
        }

        .match-card-meta .match-heat {
            color: var(--color-score);
            font-weight: 500;
        }

        .match-score-display {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--color-bg);
            border-radius: 10px;
            padding: 10px 14px;
            margin-top: var(--spacing-xs);
        }

        .match-score-display .team-name {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-secondary);
            flex: 1;
        }

        .match-score-display .score {
            font-family: var(--font-mono);
            font-size: 20px;
            font-weight: 700;
            color: var(--color-primary);
        }

        .match-score-display .score .score-separator {
            color: var(--color-text-muted);
            margin: 0 4px;
        }

        .match-score-display .score.pending {
            color: var(--color-text-muted);
            font-weight: 400;
        }

        .related-topics-section {
            padding: var(--spacing-xl) 0;
            background: var(--color-bg-dark);
        }

        .related-topics-section h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-white);
            letter-spacing: 1px;
            position: relative;
            padding-bottom: 10px;
            margin-bottom: var(--spacing-lg);
        }

        .related-topics-section h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 3px;
        }

        .topics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
        }

        .topic-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(184, 226, 74, 0.2);
            border-radius: var(--radius-card);
            padding: var(--spacing-md);
            transition: all var(--transition-base);
            display: block;
        }

        .topic-card:hover {
            background: rgba(184, 226, 74, 0.1);
            border-color: var(--color-accent);
            transform: translateY(-2px);
            color: var(--color-white);
        }

        .topic-card .topic-name {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-accent);
            margin-bottom: 8px;
            letter-spacing: 0.5px;
        }

        .topic-card .topic-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.6;
            margin: 0;
        }

        .stats-section {
            padding: var(--spacing-xl) 0;
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border);
        }

        .stats-section h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 1px;
            position: relative;
            padding-bottom: 10px;
            margin-bottom: var(--spacing-lg);
        }

        .stats-section h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 3px;
        }

        .stats-table-wrapper {
            overflow-x: auto;
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
        }

        .stats-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--color-white);
            font-size: 14px;
            min-width: 640px;
        }

        .stats-table th {
            background: var(--color-primary);
            color: var(--color-white);
            font-weight: 600;
            padding: 14px 16px;
            text-align: left;
            letter-spacing: 0.5px;
            font-size: 13px;
            white-space: nowrap;
        }

        .stats-table td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--color-border);
            color: var(--color-text);
            white-space: nowrap;
        }

        .stats-table tr:last-child td {
            border-bottom: none;
        }

        .stats-table tr:hover td {
            background: #F8F6F0;
        }

        .stats-table .rank-col {
            font-family: var(--font-mono);
            font-weight: 700;
            color: var(--color-primary);
            width: 60px;
        }

        .stats-table .team-col {
            font-weight: 600;
        }

        .stats-table .data-col {
            font-family: var(--font-mono);
            color: var(--color-text-secondary);
        }

        .stats-table .highlight-row td {
            background: rgba(184, 226, 74, 0.08);
        }

        .editor-picks-section {
            padding: var(--spacing-xl) 0;
            background: var(--color-bg);
        }

        .editor-picks-section h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 1px;
            position: relative;
            padding-bottom: 10px;
            margin-bottom: var(--spacing-lg);
        }

        .editor-picks-section h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 3px;
        }

        .picks-scroll-row {
            display: flex;
            gap: var(--spacing-md);
            overflow-x: auto;
            padding-bottom: var(--spacing-sm);
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }

        .picks-scroll-row::-webkit-scrollbar {
            height: 6px;
        }

        .picks-scroll-row::-webkit-scrollbar-track {
            background: var(--color-border);
            border-radius: 3px;
        }

        .picks-scroll-row::-webkit-scrollbar-thumb {
            background: var(--color-primary);
            border-radius: 3px;
        }

        .pick-card {
            flex: 0 0 300px;
            scroll-snap-align: start;
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: transform var(--transition-base), box-shadow var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .pick-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }

        .pick-card-image {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            border-radius: 0;
        }

        .pick-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }

        .pick-card-body {
            padding: var(--spacing-md);
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .pick-card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.4;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .pick-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--color-text-muted);
        }

        .faq-section {
            padding: var(--spacing-xl) 0;
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border);
        }

        .faq-section h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 1px;
            position: relative;
            padding-bottom: 10px;
            margin-bottom: var(--spacing-lg);
        }

        .faq-section h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 3px;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
            max-width: 880px;
        }

        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            background: var(--color-white);
            overflow: hidden;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .faq-item:hover {
            border-color: rgba(15, 61, 46, 0.2);
        }

        .faq-item.open {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-card);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            cursor: pointer;
            transition: background var(--transition-fast);
            gap: var(--spacing-sm);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }

        .faq-question:hover {
            background: rgba(15, 61, 46, 0.04);
        }

        .faq-item.open .faq-question {
            color: var(--color-primary);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--color-bg);
            color: var(--color-primary);
            font-size: 18px;
            font-weight: 700;
            transition: transform var(--transition-base), background var(--transition-base);
            line-height: 1;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--color-accent);
            color: var(--color-primary-dark);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 20px;
            color: var(--color-text-secondary);
            font-size: 15px;
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        .cta-section {
            padding: var(--spacing-xl) 0;
            background: var(--color-primary);
        }

        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-lg);
            flex-wrap: wrap;
        }

        .cta-text h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-white);
            letter-spacing: 1px;
            margin: 0 0 8px 0;
        }

        .cta-text p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            margin: 0;
            line-height: 1.6;
        }

        .cta-form {
            display: flex;
            gap: var(--spacing-xs);
            flex-wrap: wrap;
        }

        .cta-form input {
            padding: 14px 20px;
            border-radius: var(--radius-input);
            border: 1px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.1);
            color: var(--color-white);
            font-size: 15px;
            min-width: 260px;
            transition: border-color var(--transition-fast), background var(--transition-fast);
            placeholder-color: rgba(255, 255, 255, 0.5);
        }

        .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .cta-form input:focus {
            border-color: var(--color-accent);
            background: rgba(255, 255, 255, 0.15);
        }

        .cta-form button {
            padding: 14px 32px;
            background: var(--color-accent);
            color: var(--color-primary-dark);
            font-weight: 700;
            border-radius: var(--radius-button);
            transition: all var(--transition-fast);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .cta-form button:hover {
            background: #c9ee5e;
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(184, 226, 74, 0.3);
        }

        .site-footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.8);
            padding: var(--spacing-xl) 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: var(--spacing-lg);
            padding-bottom: var(--spacing-lg);
        }

        .footer-brand .footer-logo {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-white);
            letter-spacing: 3px;
            margin-bottom: var(--spacing-sm);
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            margin: 0;
        }

        .footer-col h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-white);
            letter-spacing: 1px;
            margin-bottom: var(--spacing-sm);
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--color-accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: var(--spacing-md) 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            text-align: center;
        }

        .footer-bottom p {
            margin: 0;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: var(--color-accent);
        }

        @media (max-width: 1024px) {
            .match-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .topics-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }

            .nav-menu {
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: var(--color-primary);
                flex-direction: column;
                padding: var(--spacing-sm) var(--spacing-md);
                gap: 4px;
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
                display: none;
                align-items: stretch;
            }

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

            .nav-menu a {
                display: block;
                padding: 12px 16px;
                text-align: left;
                white-space: normal;
            }

            .category-header-content h1 {
                font-size: 28px;
            }

            .category-header-content .category-subtitle {
                font-size: 16px;
            }

            .match-grid {
                grid-template-columns: 1fr;
            }

            .topics-grid {
                grid-template-columns: 1fr;
            }

            .section-title-row h2,
            .editor-picks-section h2,
            .faq-section h2,
            .stats-section h2,
            .related-topics-section h2 {
                font-size: 22px;
            }

            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-form input {
                min-width: 100%;
                width: 100%;
            }

            .cta-form button {
                width: 100%;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }

            .pick-card {
                flex: 0 0 260px;
            }
        }

        @media (max-width: 520px) {
            .nav-container {
                height: 60px;
            }

            .nav-menu {
                top: 60px;
            }

            .nav-logo {
                font-size: 20px;
                letter-spacing: 1px;
            }

            .nav-logo .logo-suffix {
                font-size: 12px;
            }

            .breadcrumb-nav {
                font-size: 12px;
                gap: 4px;
            }

            .category-header-section {
                padding: var(--spacing-md) 0;
            }

            .category-header-content h1 {
                font-size: 24px;
                letter-spacing: 1px;
            }

            .match-list-section,
            .editor-picks-section,
            .faq-section,
            .stats-section,
            .related-topics-section,
            .cta-section {
                padding: var(--spacing-lg) 0;
            }

            .match-card-image {
                aspect-ratio: 4 / 3;
            }

            .match-score-display .score {
                font-size: 16px;
            }

            .stats-table th,
            .stats-table td {
                padding: 10px 12px;
                font-size: 12px;
            }

            .faq-question {
                padding: 14px 16px;
                font-size: 15px;
            }

            .faq-answer {
                font-size: 14px;
                padding: 0 16px;
            }

            .faq-item.open .faq-answer {
                padding: 0 16px 14px;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #0F3D2E;
            --color-primary-dark: #0B2F23;
            --color-accent: #B8E24A;
            --color-score: #E85D3F;
            --color-bg: #F4F1EA;
            --color-bg-dark: #122B23;
            --color-white: #FFFFFF;
            --color-text: #1F2A24;
            --color-text-secondary: #5C6B62;
            --color-text-muted: #8A9B90;
            --color-border: rgba(15, 61, 46, 0.08);
            --color-border-light: #D9DEDB;
            --radius-card: 16px;
            --radius-button: 999px;
            --radius-input: 12px;
            --shadow-card: 0 2px 12px rgba(15, 61, 46, 0.05);
            --shadow-card-hover: 0 8px 28px rgba(15, 61, 46, 0.12);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-serif: 'Noto Serif CJK SC', 'STSong', 'SimSun', serif;
            --font-mono: 'DIN Alternate', 'Roboto Mono', 'SF Mono', monospace;
            --container-max: 1200px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-2xl: 80px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--color-accent);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }

        button,
        input {
            font-family: var(--font-sans);
            font-size: 16px;
            outline: none;
            border: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            width: 100%;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: var(--color-primary);
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.15);
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
        }

        .nav-container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: var(--spacing-md);
        }

        .nav-logo {
            font-size: 24px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--color-white);
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
        }

        .nav-logo:hover {
            opacity: 0.85;
            color: var(--color-white);
        }

        .nav-logo .logo-suffix {
            color: var(--color-accent);
            font-size: 14px;
            letter-spacing: 1px;
            font-weight: 400;
            margin-left: 4px;
        }

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

        .nav-menu li {
            position: relative;
        }

        .nav-menu a {
            display: block;
            padding: 10px 16px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.8);
            border-radius: 8px;
            transition: all var(--transition-fast);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .nav-menu a:hover,
        .nav-menu a:focus {
            color: var(--color-white);
            background: rgba(184, 226, 74, 0.12);
        }

        .nav-menu a.active {
            color: var(--color-white);
            background: rgba(184, 226, 74, 0.18);
            box-shadow: inset 0 -2px 0 var(--color-accent);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.1);
            transition: background var(--transition-fast);
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.2);
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-white);
            border-radius: 2px;
            transition: transform var(--transition-base), opacity var(--transition-base);
        }

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* Breadcrumb + Header */
        .page-header {
            background-color: var(--color-primary-dark);
            padding: var(--spacing-lg) 0 var(--spacing-xl);
            color: var(--color-white);
            position: relative;
            overflow: hidden;
        }

        .page-header::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,61,46,0.95) 0%, rgba(18,43,35,0.8) 100%);
            z-index: 1;
        }

        .page-header .container {
            position: relative;
            z-index: 2;
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255,255,255,0.7);
            margin-bottom: var(--spacing-md);
            flex-wrap: wrap;
        }

        .breadcrumb-nav a {
            color: var(--color-accent);
        }

        .breadcrumb-nav a:hover {
            color: var(--color-white);
        }

        .breadcrumb-nav .separator {
            color: rgba(255,255,255,0.4);
        }

        .page-header h1 {
            font-size: 36px;
            font-weight: 700;
            letter-spacing: 1px;
            margin: 0 0 var(--spacing-sm);
            color: var(--color-white);
            line-height: 1.3;
        }

        .page-header .subhead {
            font-size: 18px;
            color: rgba(255,255,255,0.85);
            max-width: 700px;
            margin: 0;
        }

        /* Intro paragraph */
        .intro-section {
            padding: var(--spacing-xl) 0;
            background-color: var(--color-white);
        }

        .intro-text {
            font-size: 17px;
            line-height: 1.9;
            color: var(--color-text-secondary);
            max-width: 900px;
            margin: 0 auto;
            text-align: left;
        }

        /* Listing cards */
        .listing-section {
            padding: var(--spacing-xl) 0;
            background-color: var(--color-bg);
        }

        .section-heading {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: var(--spacing-lg);
            position: relative;
            display: inline-block;
        }

        .section-heading::after {
            content: "";
            display: block;
            width: 56px;
            height: 4px;
            background-color: var(--color-accent);
            margin-top: 8px;
            border-radius: 2px;
        }

        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }

        .article-card {
            background: var(--color-white);
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            display: flex;
            flex-direction: column;
        }

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

        .article-card .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }

        .article-card .card-body {
            padding: var(--spacing-md);
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .article-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 8px;
        }

        .badge-tag {
            display: inline-block;
            padding: 2px 10px;
            background: rgba(184, 226, 74, 0.2);
            color: var(--color-primary-dark);
            font-size: 12px;
            font-weight: 600;
            border-radius: 999px;
            letter-spacing: 0.5px;
        }

        .badge-tag.score {
            background: rgba(232, 93, 63, 0.12);
            color: var(--color-score);
        }

        .article-card .card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.4;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card .card-summary {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card .card-meta {
            font-size: 13px;
            color: var(--color-text-muted);
            margin-top: auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 12px;
            border-top: 1px solid var(--color-border);
        }

        .article-card .card-meta .heat {
            color: var(--color-score);
            font-family: var(--font-mono);
            font-weight: 600;
        }

        /* Related topics */
        .related-topics {
            padding: var(--spacing-xl) 0;
            background-color: var(--color-white);
        }

        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }

        .topic-card {
            background: var(--color-bg);
            border-radius: var(--radius-card);
            padding: var(--spacing-md);
            text-align: center;
            border: 1px solid var(--color-border);
            transition: transform var(--transition-base), border-color var(--transition-base);
            display: block;
        }

        .topic-card:hover {
            transform: translateY(-2px);
            border-color: var(--color-accent);
        }

        .topic-card .topic-icon {
            font-size: 28px;
            margin-bottom: 8px;
        }

        .topic-card .topic-name {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 4px;
        }

        .topic-card .topic-desc {
            font-size: 13px;
            color: var(--color-text-secondary);
            line-height: 1.5;
        }

        /* Data ranking */
        .data-ranking {
            padding: var(--spacing-xl) 0;
            background-color: var(--color-bg);
        }

        .ranking-list {
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }

        .ranking-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 24px;
            border-bottom: 1px solid var(--color-border);
        }

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

        .ranking-item .rank {
            font-family: var(--font-mono);
            font-size: 18px;
            font-weight: 700;
            color: var(--color-score);
            width: 40px;
        }

        .ranking-item .name {
            flex: 1;
            font-weight: 600;
            color: var(--color-text);
        }

        .ranking-item .value {
            font-family: var(--font-mono);
            color: var(--color-primary);
            font-weight: 600;
        }

        /* Editor picks */
        .editor-picks {
            padding: var(--spacing-xl) 0;
            background-color: var(--color-white);
        }

        .picks-row {
            display: flex;
            gap: var(--spacing-md);
            overflow-x: auto;
            padding-bottom: var(--spacing-sm);
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }

        .pick-card {
            flex: 0 0 280px;
            scroll-snap-align: start;
            background: var(--color-bg);
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--color-border);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }

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

        .pick-card img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }

        .pick-card .pick-body {
            padding: var(--spacing-sm);
        }

        .pick-card .pick-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            line-height: 1.4;
            margin-bottom: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .pick-card .pick-meta {
            font-size: 12px;
            color: var(--color-text-muted);
        }

        /* FAQ */
        .faq-section {
            padding: var(--spacing-xl) 0;
            background-color: var(--color-bg);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-card);
            margin-bottom: var(--spacing-sm);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: border-color var(--transition-base);
        }

        .faq-item.active {
            border-color: var(--color-accent);
        }

        .faq-question {
            padding: var(--spacing-md);
            font-weight: 600;
            color: var(--color-text);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-size: 16px;
        }

        .faq-question .icon {
            font-size: 20px;
            transition: transform var(--transition-base);
            color: var(--color-primary);
            flex-shrink: 0;
        }

        .faq-item.active .faq-question .icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base);
            padding: 0 var(--spacing-md);
            color: var(--color-text-secondary);
            background: #F8F6F0;
            border-top: 1px solid transparent;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-top: var(--spacing-sm);
            padding-bottom: var(--spacing-md);
            border-top-color: var(--color-border);
        }

        .faq-answer p {
            margin: 0;
            font-size: 15px;
            line-height: 1.7;
        }

        /* Subscribe CTA */
        .subscribe-section {
            padding: var(--spacing-xl) 0;
            background-color: var(--color-primary-dark);
            color: var(--color-white);
        }

        .subscribe-inner {
            max-width: 600px;
            margin: 0 auto;
            text-align: center;
        }

        .subscribe-inner h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
            color: var(--color-white);
        }

        .subscribe-inner p {
            color: rgba(255,255,255,0.8);
            margin-bottom: var(--spacing-md);
            font-size: 16px;
        }

        .subscribe-form {
            display: flex;
            gap: var(--spacing-sm);
            justify-content: center;
            flex-wrap: wrap;
        }

        .subscribe-form input[type="email"] {
            flex: 1;
            min-width: 250px;
            padding: 12px 20px;
            border-radius: var(--radius-input);
            background: rgba(255,255,255,0.12);
            border: 1px solid rgba(255,255,255,0.25);
            color: var(--color-white);
            font-size: 15px;
        }

        .subscribe-form input[type="email"]::placeholder {
            color: rgba(255,255,255,0.6);
        }

        .subscribe-form input[type="email"]:focus {
            border-color: var(--color-accent);
            background: rgba(255,255,255,0.18);
        }

        .btn-primary {
            display: inline-block;
            background-color: var(--color-primary);
            color: var(--color-white);
            padding: 12px 28px;
            border-radius: var(--radius-button);
            font-weight: 600;
            letter-spacing: 0.5px;
            transition: all var(--transition-base);
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            background-color: var(--color-accent);
            color: var(--color-primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(0,0,0,0.2);
        }

        .btn-outline {
            background: transparent;
            border: 2px solid var(--color-white);
            color: var(--color-white);
            padding: 10px 24px;
            border-radius: var(--radius-button);
            font-weight: 600;
            transition: all var(--transition-base);
        }

        .btn-outline:hover {
            background: var(--color-white);
            color: var(--color-primary);
        }

        /* Footer */
        .site-footer {
            background-color: var(--color-primary);
            color: rgba(255,255,255,0.8);
            padding: var(--spacing-xl) 0 var(--spacing-md);
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
        }

        .footer-brand .footer-logo {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-white);
            letter-spacing: 2px;
            margin-bottom: var(--spacing-sm);
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(255,255,255,0.7);
            line-height: 1.7;
        }

        .footer-col h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-white);
            margin-bottom: var(--spacing-sm);
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: rgba(255,255,255,0.7);
            font-size: 14px;
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--color-accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.15);
            padding-top: var(--spacing-md);
            font-size: 13px;
            color: rgba(255,255,255,0.6);
            text-align: center;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 8px 16px;
            align-items: center;
        }

        .footer-bottom a {
            color: rgba(255,255,255,0.7);
        }

        .footer-bottom a:hover {
            color: var(--color-accent);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-md);
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }

            .nav-menu {
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background-color: var(--color-primary);
                flex-direction: column;
                align-items: stretch;
                padding: var(--spacing-sm);
                gap: 2px;
                display: none;
                box-shadow: 0 8px 16px rgba(0,0,0,0.2);
            }

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

            .nav-menu a {
                padding: 12px 16px;
                font-size: 16px;
                text-align: center;
            }

            .nav-menu a.active {
                background: rgba(184, 226, 74, 0.2);
                box-shadow: none;
            }

            .page-header h1 {
                font-size: 28px;
            }

            .card-grid {
                grid-template-columns: 1fr;
            }

            .topic-grid {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }

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

            .subscribe-form {
                flex-direction: column;
            }

            .subscribe-form input[type="email"] {
                width: 100%;
                min-width: auto;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 var(--spacing-sm);
            }
            .page-header h1 {
                font-size: 24px;
            }
            .page-header .subhead {
                font-size: 16px;
            }
            .intro-text {
                font-size: 15px;
            }
            .section-heading {
                font-size: 24px;
            }
            .ranking-item {
                padding: 12px 16px;
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #0F3D2E;
            --color-primary-dark: #0B2F23;
            --color-accent: #B8E24A;
            --color-score: #E85D3F;
            --color-bg: #F4F1EA;
            --color-bg-dark: #122B23;
            --color-white: #FFFFFF;
            --color-text: #1F2A24;
            --color-text-secondary: #5C6B62;
            --color-text-muted: #8A9B90;
            --color-border: rgba(15, 61, 46, 0.08);
            --color-border-light: #D9DEDB;
            --radius-card: 16px;
            --radius-button: 999px;
            --radius-input: 12px;
            --shadow-card: 0 2px 12px rgba(15, 61, 46, 0.05);
            --shadow-card-hover: 0 8px 28px rgba(15, 61, 46, 0.12);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-serif: 'Noto Serif CJK SC', 'STSong', 'SimSun', serif;
            --font-mono: 'DIN Alternate', 'Roboto Mono', 'SF Mono', monospace;
            --container-max: 1200px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 64px;
            --spacing-2xl: 80px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-card);
        }
        button,
        input {
            font-family: var(--font-sans);
            font-size: 16px;
            outline: none;
            border: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            width: 100%;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: var(--color-primary);
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.15);
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
        }
        .nav-container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: var(--spacing-md);
        }
        .nav-logo {
            font-size: 24px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--color-white);
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
        }
        .nav-logo:hover {
            opacity: 0.85;
            color: var(--color-white);
        }
        .nav-logo .logo-suffix {
            color: var(--color-accent);
            font-size: 14px;
            letter-spacing: 1px;
            font-weight: 400;
            margin-left: 4px;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-menu li {
            position: relative;
        }
        .nav-menu a {
            display: block;
            padding: 10px 16px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.8);
            border-radius: 8px;
            transition: all var(--transition-fast);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .nav-menu a:hover,
        .nav-menu a:focus {
            color: var(--color-white);
            background: rgba(184, 226, 74, 0.12);
        }
        .nav-menu a.active {
            color: var(--color-white);
            background: rgba(184, 226, 74, 0.18);
            box-shadow: inset 0 -2px 0 var(--color-accent);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.1);
            transition: background var(--transition-fast);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.2);
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-white);
            border-radius: 2px;
            transition: transform var(--transition-base), opacity var(--transition-base);
        }
        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .page-banner {
            position: relative;
            min-height: 280px;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/823917f07bb21ee1.webp');
            background-size: cover;
            background-position: center 30%;
            background-repeat: no-repeat;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 61, 46, 0.92) 0%, rgba(18, 43, 35, 0.78) 100%);
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            padding-top: 50px;
            padding-bottom: 50px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 16px;
            list-style: none;
            padding: 0;
            flex-wrap: wrap;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '/';
            color: rgba(255, 255, 255, 0.4);
            margin-left: 8px;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--color-accent);
        }
        .breadcrumb .current {
            color: var(--color-accent);
        }
        .page-banner h1 {
            font-size: 38px;
            font-weight: 700;
            color: var(--color-white);
            letter-spacing: 1px;
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .page-banner .banner-sub {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            line-height: 1.8;
        }
        .section {
            padding: var(--spacing-xl) 0;
        }
        .section-sm {
            padding: var(--spacing-lg) 0;
        }
        .section-tight {
            padding: var(--spacing-md) 0;
        }
        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
            letter-spacing: 0.5px;
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--color-text-muted);
            margin-bottom: var(--spacing-lg);
        }
        .tag-badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.5px;
            background: rgba(184, 226, 74, 0.18);
            color: var(--color-primary);
            margin-right: 6px;
            margin-bottom: 6px;
        }
        .tag-badge.score {
            background: rgba(232, 93, 63, 0.12);
            color: var(--color-score);
        }
        .tag-badge.primary {
            background: rgba(15, 61, 46, 0.1);
            color: var(--color-primary);
        }
        .topic-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .topic-tags a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            background: var(--color-white);
            color: var(--color-text);
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
        }
        .topic-tags a:hover {
            border-color: var(--color-accent);
            background: rgba(184, 226, 74, 0.1);
            color: var(--color-primary);
        }
        .topic-tags a .count {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--color-text-muted);
            margin-left: 6px;
        }
        .post-card {
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .post-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(184, 226, 74, 0.5);
        }
        .post-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
        }
        .post-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.5s ease;
        }
        .post-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .post-card .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--color-primary);
            color: var(--color-white);
            font-size: 12px;
            padding: 4px 12px;
            border-radius: 999px;
            font-weight: 500;
        }
        .post-card .card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .post-card .card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.5;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 48px;
        }
        .post-card .card-excerpt {
            font-size: 14px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
            flex: 1;
        }
        .post-card .card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 13px;
            color: var(--color-text-muted);
            border-top: 1px solid var(--color-border-light);
            padding-top: 12px;
        }
        .post-card .card-meta .heat {
            font-family: var(--font-mono);
            color: var(--color-score);
            font-weight: 600;
        }
        .post-card .card-meta .replies {
            font-family: var(--font-mono);
        }
        .stats-panel {
            background: var(--color-bg-dark);
            border-radius: var(--radius-card);
            padding: var(--spacing-lg) var(--spacing-md);
            color: var(--color-white);
        }
        .stats-panel .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
        }
        .stats-panel .stat-item {
            text-align: center;
            padding: var(--spacing-sm);
        }
        .stats-panel .stat-number {
            font-family: var(--font-mono);
            font-size: 42px;
            font-weight: 700;
            color: var(--color-accent);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .stats-panel .stat-number .unit {
            font-size: 16px;
            font-weight: 400;
            color: rgba(255, 255, 255, 0.6);
            margin-left: 2px;
        }
        .stats-panel .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }
        .hscroll-wrap {
            overflow-x: auto;
            padding-bottom: var(--spacing-sm);
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--color-border-light) transparent;
        }
        .hscroll-wrap::-webkit-scrollbar {
            height: 4px;
        }
        .hscroll-wrap::-webkit-scrollbar-track {
            background: transparent;
        }
        .hscroll-wrap::-webkit-scrollbar-thumb {
            background: var(--color-border-light);
            border-radius: 4px;
        }
        .hscroll-track {
            display: flex;
            gap: var(--spacing-md);
            min-width: max-content;
        }
        .hscroll-card {
            flex: 0 0 300px;
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .hscroll-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(184, 226, 74, 0.5);
        }
        .hscroll-card .hscroll-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }
        .hscroll-card .hscroll-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .hscroll-card .hscroll-body {
            padding: 14px 16px 16px;
        }
        .hscroll-card .hscroll-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.5;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .hscroll-card .hscroll-meta {
            font-size: 12px;
            color: var(--color-text-muted);
        }
        .feature-split {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-lg);
            align-items: center;
        }
        .feature-split .feature-img img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
        }
        .feature-split .feature-text h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: var(--spacing-sm);
        }
        .feature-split .feature-text p {
            color: var(--color-text-secondary);
            font-size: 15px;
            line-height: 1.9;
            margin-bottom: var(--spacing-sm);
        }
        .faq-item {
            background: var(--color-white);
            border-radius: 12px;
            border: 1px solid var(--color-border);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:last-child {
            margin-bottom: 0;
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-sm);
            padding: 16px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            background: var(--color-white);
            transition: background var(--transition-fast);
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            background: #F8F6F0;
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(15, 61, 46, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--color-primary);
            transition: transform var(--transition-base);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            background: rgba(184, 226, 74, 0.25);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base) ease;
            background: #F8F6F0;
        }
        .faq-item.open .faq-answer {
            max-height: 200px;
        }
        .faq-answer-inner {
            padding: 0 20px 16px;
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.8;
        }
        .cta-section {
            background: var(--color-primary);
            border-radius: var(--radius-card);
            padding: var(--spacing-lg) var(--spacing-md);
            text-align: center;
            color: var(--color-white);
        }
        .cta-section h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-white);
            margin-bottom: 8px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 15px;
            margin-bottom: var(--spacing-md);
            max-width: 480px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 420px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-form input {
            flex: 1;
            min-width: 200px;
            padding: 14px 18px;
            border-radius: var(--radius-input);
            background: var(--color-white);
            color: var(--color-text);
            font-size: 15px;
            border: 2px solid transparent;
            transition: border-color var(--transition-fast);
        }
        .cta-form input:focus {
            border-color: var(--color-accent);
        }
        .cta-form input::placeholder {
            color: var(--color-text-muted);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: var(--radius-button);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.5px;
            background: var(--color-accent);
            color: var(--color-primary);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: #a8d63c;
            color: var(--color-primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(184, 226, 74, 0.35);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: var(--radius-button);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.5px;
            background: transparent;
            color: var(--color-primary);
            border: 2px solid var(--color-primary);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-secondary:hover {
            background: rgba(15, 61, 46, 0.06);
            color: var(--color-primary);
        }
        .site-footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.8);
            padding-top: var(--spacing-xl);
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: var(--spacing-lg);
            padding-bottom: var(--spacing-lg);
        }
        .footer-brand .footer-logo {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-white);
            letter-spacing: 2px;
            margin-bottom: var(--spacing-sm);
        }
        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.8;
            max-width: 300px;
        }
        .footer-col h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-accent);
            margin-bottom: var(--spacing-sm);
            letter-spacing: 1px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: var(--spacing-md) 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            text-align: center;
            line-height: 1.8;
        }
        .footer-bottom p {
            margin-bottom: 4px;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: var(--color-accent);
        }
        .grid-posts {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }
        .section-bg-white {
            background: var(--color-white);
            border-radius: var(--radius-card);
            padding: var(--spacing-lg);
            box-shadow: var(--shadow-card);
        }
        .divider-light {
            height: 1px;
            background: var(--color-border-light);
            margin: var(--spacing-lg) 0;
        }
        @media (max-width: 1024px) {
            .grid-posts {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-panel .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .feature-split {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
            .page-banner h1 {
                font-size: 30px;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                flex-direction: column;
                background: var(--color-primary);
                padding: 12px var(--spacing-md) 20px;
                gap: 2px;
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                display: block;
                padding: 12px 8px;
                font-size: 16px;
                border-radius: 6px;
            }
            .nav-menu a.active {
                box-shadow: none;
                background: rgba(184, 226, 74, 0.18);
            }
            .page-banner {
                min-height: 220px;
            }
            .page-banner h1 {
                font-size: 26px;
            }
            .page-banner .banner-sub {
                font-size: 15px;
            }
            .grid-posts {
                grid-template-columns: 1fr;
            }
            .stats-panel .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--spacing-sm);
            }
            .stats-panel .stat-number {
                font-size: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
            .section {
                padding: var(--spacing-lg) 0;
            }
            .section-title {
                font-size: 22px;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-form input {
                min-width: auto;
                width: 100%;
            }
            .hscroll-card {
                flex: 0 0 260px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 var(--spacing-sm);
            }
            .page-banner h1 {
                font-size: 22px;
            }
            .breadcrumb {
                font-size: 12px;
            }
            .post-card .card-title {
                font-size: 15px;
                min-height: auto;
            }
            .stats-panel .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stats-panel .stat-number {
                font-size: 28px;
            }
            .footer-bottom {
                font-size: 12px;
            }
        }

/* roulang page: category5 */
:root {
      --color-primary: #0F3D2E;
      --color-primary-dark: #0B2F23;
      --color-accent: #B8E24A;
      --color-score: #E85D3F;
      --color-bg: #F4F1EA;
      --color-bg-dark: #122B23;
      --color-white: #FFFFFF;
      --color-text: #1F2A24;
      --color-text-secondary: #5C6B62;
      --color-text-muted: #8A9B90;
      --color-border: rgba(15, 61, 46, 0.08);
      --color-border-light: #D9DEDB;
      --radius-card: 16px;
      --radius-button: 999px;
      --radius-input: 12px;
      --shadow-card: 0 2px 12px rgba(15, 61, 46, 0.05);
      --shadow-card-hover: 0 8px 28px rgba(15, 61, 46, 0.12);
      --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', -apple-system, BlinkMacSystemFont, sans-serif;
      --font-serif: 'Noto Serif CJK SC', 'STSong', 'SimSun', serif;
      --font-mono: 'DIN Alternate', 'Roboto Mono', 'SF Mono', monospace;
      --container-max: 1200px;
      --spacing-xs: 8px;
      --spacing-sm: 16px;
      --spacing-md: 24px;
      --spacing-lg: 40px;
      --spacing-xl: 64px;
      --spacing-2xl: 80px;
      --transition-fast: 0.2s ease;
      --transition-base: 0.3s ease;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }
    body {
      font-family: var(--font-sans);
      font-size: 16px;
      line-height: 1.8;
      color: var(--color-text);
      background-color: var(--color-bg);
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      overflow-x: hidden;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: color var(--transition-fast);
    }
    a:hover {
      color: var(--color-accent);
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
      border-radius: var(--radius-card);
    }
    button,
    input {
      font-family: var(--font-sans);
      font-size: 16px;
      outline: none;
      border: none;
    }
    button {
      cursor: pointer;
      background: none;
    }
    .container {
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 var(--spacing-md);
      width: 100%;
    }
    /* Header */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background-color: var(--color-primary);
      box-shadow: 0 2px 16px rgba(0, 0, 0, 0.15);
      transition: box-shadow var(--transition-base);
    }
    .site-header.scrolled {
      box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
    }
    .nav-container {
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 var(--spacing-md);
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 68px;
      gap: var(--spacing-md);
    }
    .nav-logo {
      font-size: 24px;
      font-weight: 700;
      letter-spacing: 2px;
      color: var(--color-white);
      flex-shrink: 0;
      transition: opacity var(--transition-fast);
    }
    .nav-logo:hover {
      opacity: 0.85;
      color: var(--color-white);
    }
    .nav-logo .logo-suffix {
      color: var(--color-accent);
      font-size: 14px;
      letter-spacing: 1px;
      font-weight: 400;
      margin-left: 4px;
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 4px;
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .nav-menu li {
      position: relative;
    }
    .nav-menu a {
      display: block;
      padding: 10px 16px;
      font-size: 15px;
      font-weight: 500;
      color: rgba(255, 255, 255, 0.8);
      border-radius: 8px;
      transition: all var(--transition-fast);
      letter-spacing: 0.5px;
      white-space: nowrap;
    }
    .nav-menu a:hover,
    .nav-menu a:focus {
      color: var(--color-white);
      background: rgba(184, 226, 74, 0.12);
    }
    .nav-menu a.active {
      color: var(--color-white);
      background: rgba(184, 226, 74, 0.18);
      box-shadow: inset 0 -2px 0 var(--color-accent);
    }
    .nav-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      padding: 8px;
      border-radius: 8px;
      background: rgba(255, 255, 255, 0.1);
      transition: background var(--transition-fast);
    }
    .nav-toggle:hover {
      background: rgba(255, 255, 255, 0.2);
    }
    .nav-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background: var(--color-white);
      border-radius: 2px;
      transition: transform var(--transition-base), opacity var(--transition-base);
    }
    .nav-toggle.open span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }
    .nav-toggle.open span:nth-child(2) {
      opacity: 0;
    }
    .nav-toggle.open span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }
    /* Page Header / Breadcrumb */
    .page-header {
      background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
      color: var(--color-white);
      padding: var(--spacing-xl) 0 var(--spacing-lg);
      border-bottom: 4px solid var(--color-accent);
    }
    .breadcrumb {
      list-style: none;
      display: flex;
      gap: 8px;
      padding: 0;
      margin-bottom: var(--spacing-sm);
      font-size: 14px;
      color: rgba(255,255,255,0.7);
      flex-wrap: wrap;
    }
    .breadcrumb li:not(:last-child)::after {
      content: "/";
      margin-left: 8px;
      color: rgba(255,255,255,0.5);
    }
    .breadcrumb a {
      color: rgba(255,255,255,0.8);
    }
    .breadcrumb a:hover {
      color: var(--color-accent);
    }
    .breadcrumb li:last-child {
      color: var(--color-accent);
    }
    .page-header h1 {
      font-size: 2.8rem;
      font-weight: 700;
      letter-spacing: 2px;
      margin-bottom: var(--spacing-sm);
      line-height: 1.3;
    }
    .page-header .subtitle {
      font-size: 1.1rem;
      color: rgba(255,255,255,0.85);
      max-width: 700px;
      line-height: 1.8;
    }
    /* Main content */
    main {
      padding: var(--spacing-xl) 0;
      background: var(--color-bg);
    }
    section {
      margin-bottom: var(--spacing-xl);
    }
    .section-title {
      font-size: 1.9rem;
      font-weight: 700;
      color: var(--color-primary);
      letter-spacing: 1px;
      margin-bottom: var(--spacing-md);
      position: relative;
      padding-bottom: 10px;
      display: inline-block;
    }
    .section-title::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: 0;
      width: 60px;
      height: 3px;
      background: var(--color-accent);
      border-radius: 2px;
    }
    .section-subtitle {
      font-size: 1rem;
      color: var(--color-text-secondary);
      margin-bottom: var(--spacing-md);
      max-width: 700px;
    }
    /* Intro guide text */
    .guide-text {
      background: var(--color-white);
      border-left: 4px solid var(--color-accent);
      padding: var(--spacing-md) var(--spacing-lg);
      border-radius: 0 var(--radius-card) var(--radius-card) 0;
      box-shadow: var(--shadow-card);
      font-size: 1.02rem;
      color: var(--color-text);
      line-height: 1.9;
      margin-bottom: var(--spacing-xl);
    }
    /* Card grid */
    .card-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: var(--spacing-md);
    }
    .card-item {
      background: var(--color-white);
      border-radius: var(--radius-card);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      border: 1px solid var(--color-border);
      transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
      display: flex;
      flex-direction: column;
    }
    .card-item:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-card-hover);
      border-color: rgba(184,226,74,0.6);
    }
    .card-item img {
      width: 100%;
      aspect-ratio: 16 / 9;
      object-fit: cover;
      border-radius: 0;
    }
    .card-body {
      padding: var(--spacing-sm) var(--spacing-md) var(--spacing-md);
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .card-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 600;
      padding: 4px 10px;
      border-radius: 999px;
      background: rgba(184,226,74,0.2);
      color: var(--color-primary);
      margin-bottom: 10px;
      align-self: flex-start;
      letter-spacing: 0.5px;
    }
    .card-item h3 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--color-text);
      margin-bottom: 8px;
      line-height: 1.4;
    }
    .card-item p {
      font-size: 0.95rem;
      color: var(--color-text-secondary);
      line-height: 1.7;
      margin-bottom: 12px;
      flex: 1;
    }
    .card-meta {
      font-size: 13px;
      color: var(--color-text-muted);
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-top: 1px solid var(--color-border);
      padding-top: 10px;
    }
    .card-meta .heat {
      font-family: var(--font-mono);
      color: var(--color-score);
      font-weight: 600;
    }
    /* Related topics */
    .topics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: var(--spacing-sm);
    }
    .topic-card {
      background: var(--color-white);
      border-radius: var(--radius-card);
      padding: var(--spacing-md);
      box-shadow: var(--shadow-card);
      border: 1px solid var(--color-border);
      transition: all var(--transition-base);
      text-align: center;
    }
    .topic-card:hover {
      background: var(--color-primary);
      color: var(--color-white);
      transform: translateY(-3px);
      box-shadow: var(--shadow-card-hover);
    }
    .topic-card .topic-icon {
      font-size: 2rem;
      margin-bottom: 8px;
    }
    .topic-card h4 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 4px;
    }
    .topic-card p {
      font-size: 0.85rem;
      color: var(--color-text-secondary);
      margin: 0;
    }
    .topic-card:hover p {
      color: rgba(255,255,255,0.8);
    }
    /* Ranking / data panel */
    .data-panel {
      background: var(--color-bg-dark);
      border-radius: var(--radius-card);
      padding: var(--spacing-lg);
      color: var(--color-white);
      box-shadow: var(--shadow-card);
    }
    .data-panel .section-title {
      color: var(--color-white);
    }
    .data-panel .section-title::after {
      background: var(--color-score);
    }
    .ranking-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .ranking-list li {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 14px 0;
      border-bottom: 1px solid rgba(255,255,255,0.1);
      gap: 16px;
      flex-wrap: wrap;
    }
    .ranking-list li:last-child {
      border-bottom: none;
    }
    .rank-index {
      font-family: var(--font-mono);
      font-weight: 700;
      font-size: 1.1rem;
      color: var(--color-accent);
      width: 40px;
      flex-shrink: 0;
    }
    .rank-name {
      flex: 1;
      font-weight: 600;
      letter-spacing: 0.3px;
    }
    .rank-value {
      font-family: var(--font-mono);
      background: rgba(184,226,74,0.15);
      padding: 4px 12px;
      border-radius: 999px;
      font-size: 0.9rem;
    }
    /* Editor picks horizontal scroll */
    .scroll-row {
      display: flex;
      gap: var(--spacing-md);
      overflow-x: auto;
      padding-bottom: 10px;
      scroll-snap-type: x mandatory;
      -webkit-overflow-scrolling: touch;
    }
    .scroll-row::-webkit-scrollbar {
      height: 6px;
    }
    .scroll-row::-webkit-scrollbar-thumb {
      background: rgba(15,61,46,0.2);
      border-radius: 999px;
    }
    .pick-card {
      min-width: 260px;
      scroll-snap-align: start;
      background: var(--color-white);
      border-radius: var(--radius-card);
      padding: var(--spacing-sm);
      box-shadow: var(--shadow-card);
      border: 1px solid var(--color-border);
      transition: all var(--transition-base);
    }
    .pick-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-card-hover);
    }
    .pick-card img {
      width: 100%;
      aspect-ratio: 16 / 9;
      object-fit: cover;
      border-radius: 12px;
      margin-bottom: 8px;
    }
    .pick-card h4 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--color-primary);
      margin-bottom: 4px;
      line-height: 1.4;
    }
    .pick-card p {
      font-size: 0.85rem;
      color: var(--color-text-secondary);
      margin: 0;
      line-height: 1.5;
    }
    /* FAQ */
    .faq-section {
      background: var(--color-white);
      border-radius: var(--radius-card);
      padding: var(--spacing-lg);
      box-shadow: var(--shadow-card);
      border: 1px solid var(--color-border);
    }
    .faq-item {
      border-bottom: 1px solid var(--color-border);
      padding: var(--spacing-sm) 0;
    }
    .faq-item:last-child {
      border-bottom: none;
    }
    .faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      font-weight: 600;
      color: var(--color-primary);
      padding: 10px 0;
      text-align: left;
      width: 100%;
      background: none;
      border: none;
      font-size: 1.05rem;
      transition: color var(--transition-fast);
    }
    .faq-question:hover {
      color: var(--color-primary-dark);
    }
    .faq-question .icon {
      font-size: 1.4rem;
      transition: transform var(--transition-base);
      flex-shrink: 0;
      margin-left: 12px;
    }
    .faq-item.open .faq-question .icon {
      transform: rotate(45deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height var(--transition-base);
      background: #F8F6F0;
      border-radius: 8px;
      padding: 0 12px;
    }
    .faq-item.open .faq-answer {
      max-height: 200px;
      padding: 12px;
      border: 1px solid rgba(15,61,46,0.1);
    }
    .faq-answer p {
      margin: 0;
      font-size: 0.95rem;
      color: var(--color-text-secondary);
      line-height: 1.7;
    }
    /* CTA */
    .cta-section {
      background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
      border-radius: var(--radius-card);
      padding: var(--spacing-xl) var(--spacing-lg);
      text-align: center;
      color: var(--color-white);
      box-shadow: var(--shadow-card-hover);
    }
    .cta-section h2 {
      font-size: 1.8rem;
      font-weight: 700;
      margin-bottom: var(--spacing-sm);
      letter-spacing: 1px;
    }
    .cta-section p {
      color: rgba(255,255,255,0.85);
      margin-bottom: var(--spacing-md);
      max-width: 600px;
      margin-left: auto;
      margin-right: auto;
    }
    .cta-form {
      display: flex;
      gap: 10px;
      justify-content: center;
      flex-wrap: wrap;
      max-width: 500px;
      margin: 0 auto;
    }
    .cta-form input {
      flex: 1;
      min-width: 240px;
      padding: 12px 18px;
      border-radius: var(--radius-input);
      border: 1px solid var(--color-border-light);
      background: var(--color-white);
      color: var(--color-text);
    }
    .cta-form input:focus {
      border-color: var(--color-accent);
      box-shadow: 0 0 0 3px rgba(184,226,74,0.2);
    }
    .btn {
      display: inline-block;
      padding: 12px 28px;
      border-radius: var(--radius-button);
      font-weight: 600;
      letter-spacing: 0.5px;
      transition: all var(--transition-base);
      border: 2px solid transparent;
      white-space: nowrap;
    }
    .btn-primary {
      background: var(--color-accent);
      color: var(--color-primary-dark);
      border-color: var(--color-accent);
    }
    .btn-primary:hover {
      background: #c9ef6a;
      border-color: #c9ef6a;
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(184,226,74,0.4);
      color: var(--color-primary-dark);
    }
    .btn-outline {
      background: transparent;
      color: var(--color-white);
      border-color: rgba(255,255,255,0.5);
    }
    .btn-outline:hover {
      background: rgba(255,255,255,0.1);
      border-color: var(--color-white);
      color: var(--color-white);
    }
    /* Footer */
    .site-footer {
      background: var(--color-primary);
      color: rgba(255,255,255,0.8);
      padding: var(--spacing-2xl) 0 var(--spacing-md);
      margin-top: 0;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: var(--spacing-lg);
      margin-bottom: var(--spacing-xl);
    }
    .footer-brand .footer-logo {
      font-size: 1.8rem;
      font-weight: 700;
      letter-spacing: 2px;
      color: var(--color-white);
      margin-bottom: 10px;
    }
    .footer-brand p {
      color: rgba(255,255,255,0.7);
      font-size: 0.95rem;
      line-height: 1.7;
    }
    .footer-col h3 {
      color: var(--color-accent);
      font-size: 1rem;
      font-weight: 600;
      margin-bottom: 12px;
      letter-spacing: 1px;
    }
    .footer-col ul {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-col li {
      margin-bottom: 8px;
    }
    .footer-col a {
      color: rgba(255,255,255,0.7);
      font-size: 0.95rem;
      transition: color var(--transition-fast);
    }
    .footer-col a:hover {
      color: var(--color-accent);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.1);
      padding-top: var(--spacing-md);
      text-align: center;
      font-size: 0.85rem;
      color: rgba(255,255,255,0.55);
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .footer-bottom a {
      color: rgba(255,255,255,0.7);
    }
    .footer-bottom a:hover {
      color: var(--color-accent);
    }
    /* Responsive */
    @media (max-width: 1024px) {
      .card-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .topics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 768px) {
      .nav-toggle {
        display: flex;
      }
      .nav-menu {
        display: none;
        position: absolute;
        top: 68px;
        left: 0;
        right: 0;
        background: var(--color-primary);
        flex-direction: column;
        padding: var(--spacing-sm);
        box-shadow: 0 8px 20px rgba(0,0,0,0.25);
        gap: 2px;
      }
      .nav-menu.open {
        display: flex;
      }
      .nav-menu a {
        width: 100%;
        text-align: center;
        padding: 12px;
      }
      .site-header {
        position: relative;
      }
      .page-header h1 {
        font-size: 2rem;
      }
      .card-grid {
        grid-template-columns: 1fr;
      }
      .topics-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .section-title {
        font-size: 1.5rem;
      }
      .scroll-row {
        gap: var(--spacing-sm);
      }
      .pick-card {
        min-width: 220px;
      }
      .cta-form {
        flex-direction: column;
      }
      .cta-form input {
        width: 100%;
        min-width: auto;
      }
      main {
        padding: var(--spacing-lg) 0;
      }
    }
    @media (max-width: 520px) {
      .page-header h1 {
        font-size: 1.7rem;
      }
      .guide-text {
        padding: var(--spacing-sm);
      }
      .data-panel {
        padding: var(--spacing-md);
      }
      .ranking-list li {
        flex-direction: column;
        align-items: flex-start;
      }
      .rank-index {
        width: auto;
      }
      .btn {
        width: 100%;
        text-align: center;
      }
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}