/* roulang page: index */
:root {
            --color-primary: #2A2D3E;
            --color-accent: #F0A020;
            --color-highlight: #2EC4B6;
            --color-bg: #F7F7FA;
            --color-dark: #1B1D2A;
            --color-text: #1A1C26;
            --color-text-muted: #5A5E6E;
            --color-border: #E3E4EB;
            --color-white: #FFFFFF;
            --color-accent-dark: #D98A12;
            --color-highlight-light: rgba(46, 196, 182, 0.1);
            --color-accent-light: rgba(240, 160, 32, 0.1);
            --radius-card: 12px;
            --radius-btn: 10px;
            --radius-pill: 22px;
            --radius-badge: 6px;
            --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 8px 24px rgba(0, 0, 0, 0.08);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --max-container: 1200px;
            --section-padding: 88px 0;
            --transition: all 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family);
            font-size: 0.9375rem;
            font-weight: 400;
            line-height: 1.85;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

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

        button,
        input,
        textarea,
        select {
            font-family: var(--font-family);
            font-size: inherit;
            outline: none;
            border: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--color-text);
            font-weight: 700;
            line-height: 1.3;
        }

        h1 {
            font-size: 2rem;
            font-weight: 700;
        }

        h2 {
            font-size: 1.5rem;
            font-weight: 700;
        }

        h3 {
            font-size: 1.125rem;
            font-weight: 600;
        }

        .container {
            max-width: var(--max-container);
            margin: 0 auto;
            padding: 0 24px;
        }

        .visually-hidden {
            position: absolute;
            width: 1px;
            height: 1px;
            overflow: hidden;
            clip: rect(0 0 0 0);
            white-space: nowrap;
        }

        /* Header / Nav */
        .site-header {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.02);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 24px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-primary);
            flex-shrink: 0;
            letter-spacing: 0.02em;
        }

        .logo .logo-badge {
            width: 32px;
            height: 32px;
            background: var(--color-primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 0.875rem;
            font-weight: 700;
            flex-shrink: 0;
        }

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

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }

        .main-nav a {
            padding: 8px 14px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-text-muted);
            border-radius: 8px;
            white-space: nowrap;
            transition: var(--transition);
            letter-spacing: 0.01em;
        }

        .main-nav a:hover {
            color: var(--color-highlight);
            background: var(--color-highlight-light);
        }

        .main-nav a.active {
            color: var(--color-primary);
            background: rgba(42, 45, 62, 0.06);
            font-weight: 600;
        }

        .nav-cta {
            background: var(--color-accent);
            color: var(--color-primary);
            padding: 9px 18px;
            border-radius: var(--radius-btn);
            font-size: 0.875rem;
            font-weight: 600;
            white-space: nowrap;
            transition: var(--transition);
            flex-shrink: 0;
            letter-spacing: 0.01em;
        }

        .nav-cta:hover {
            background: var(--color-accent-dark);
            color: var(--color-primary);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            flex-shrink: 0;
        }

        .nav-toggle span {
            width: 20px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: var(--transition);
        }

        .nav-toggle[aria-expanded="true"] span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle[aria-expanded="true"] span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-nav {
            display: none;
            flex-direction: column;
            gap: 4px;
            padding: 12px 24px 20px;
            background: var(--color-white);
            border-top: 1px solid var(--color-border);
            position: absolute;
            top: 68px;
            left: 0;
            right: 0;
            z-index: 99;
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.06);
        }

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

        .mobile-nav a {
            padding: 12px 8px;
            font-size: 0.9375rem;
            font-weight: 500;
            border-radius: 8px;
            color: var(--color-text);
        }

        .mobile-nav a:hover,
        .mobile-nav a.active {
            background: rgba(42, 45, 62, 0.05);
            color: var(--color-primary);
        }

        .mobile-nav .nav-cta {
            margin-top: 8px;
            text-align: center;
            border-radius: 8px;
        }

        /* Hero */
        .hero {
            background: var(--color-dark);
            color: #fff;
            position: relative;
            overflow: hidden;
            padding: 72px 0 40px;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/df672b18a09f4bf0.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.2;
            z-index: 1;
        }

        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 20%, rgba(46, 196, 182, 0.08) 0%, transparent 60%), radial-gradient(ellipse at 75% 80%, rgba(240, 160, 32, 0.06) 0%, transparent 55%);
            z-index: 2;
        }

        .hero .container {
            position: relative;
            z-index: 3;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(240, 160, 32, 0.15);
            color: var(--color-accent);
            padding: 6px 14px;
            border-radius: var(--radius-badge);
            font-size: 0.8125rem;
            font-weight: 600;
            width: fit-content;
            letter-spacing: 0.02em;
        }

        .hero h1 {
            color: #fff;
            font-size: 2.25rem;
            line-height: 1.25;
            letter-spacing: 0.01em;
        }

        .hero-subtitle {
            color: rgba(255, 255, 255, 0.78);
            font-size: 1rem;
            line-height: 1.8;
            max-width: 540px;
        }

        .hero-ctas {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 8px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.9375rem;
            transition: var(--transition);
            letter-spacing: 0.01em;
            line-height: 1.5;
        }

        .btn:focus-visible {
            outline: 2px solid rgba(240, 160, 32, 0.5);
            outline-offset: 2px;
        }

        .btn-primary {
            background: var(--color-accent);
            color: var(--color-primary);
        }

        .btn-primary:hover {
            background: var(--color-accent-dark);
            color: var(--color-primary);
        }

        .btn-secondary {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.35);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.55);
        }

        .hero-badges {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 4px;
        }

        .hero-badge {
            display: flex;
            align-items: center;
            gap: 6px;
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.8125rem;
            font-weight: 500;
        }

        .hero-badge .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-highlight);
            flex-shrink: 0;
        }

        .hero-badge .dot.amber {
            background: var(--color-accent);
        }

        .hero-panel {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 16px;
            padding: 24px;
            backdrop-filter: blur(4px);
        }

        .hero-panel-title {
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.875rem;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .hero-panel-options {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .hero-panel-option {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 16px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 10px;
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.875rem;
            transition: var(--transition);
            cursor: pointer;
        }

        .hero-panel-option:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.22);
        }

        .hero-panel-option .pill-icon {
            color: var(--color-highlight);
            font-size: 0.875rem;
            font-weight: 600;
        }

        .hero-panel-result {
            margin-top: 16px;
            padding: 14px 16px;
            background: rgba(46, 196, 182, 0.12);
            border: 1px solid rgba(46, 196, 182, 0.25);
            border-radius: 10px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.8125rem;
            line-height: 1.6;
        }

        .hero-panel-result strong {
            color: var(--color-highlight);
            font-weight: 600;
        }

        /* Pill Navigation */
        .pill-nav-wrapper {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            padding: 12px 0;
            position: relative;
            z-index: 10;
        }

        .pill-nav-wrapper .container {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            display: flex;
            gap: 8px;
            padding-bottom: 2px;
        }

        .pill-nav-wrapper .container::-webkit-scrollbar {
            display: none;
        }

        .pill-nav {
            display: flex;
            gap: 8px;
            flex-wrap: nowrap;
            padding: 0 2px;
        }

        .pill-chip {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 7px 16px;
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-pill);
            font-size: 0.8125rem;
            font-weight: 500;
            color: var(--color-text-muted);
            white-space: nowrap;
            transition: var(--transition);
            flex-shrink: 0;
            letter-spacing: 0.01em;
        }

        .pill-chip:hover {
            border-color: var(--color-highlight);
            color: var(--color-highlight);
        }

        .pill-chip.active {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #fff;
            font-weight: 600;
        }

        /* Breadcrumb */
        .breadcrumb {
            background: var(--color-bg);
            padding: 12px 0;
            border-bottom: 1px solid var(--color-border);
        }

        .breadcrumb .container {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8125rem;
            color: var(--color-text-muted);
        }

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

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

        .breadcrumb .sep {
            color: var(--color-border);
        }

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

        /* Section Base */
        .section {
            padding: var(--section-padding);
        }

        .section-alt {
            background: var(--color-white);
        }

        .section-header {
            margin-bottom: 36px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--color-highlight);
            font-size: 0.8125rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            width: fit-content;
        }

        .section-tag::before {
            content: '';
            width: 18px;
            height: 2px;
            background: var(--color-highlight);
            border-radius: 2px;
        }

        .section-header h2 {
            color: var(--color-primary);
            font-size: 1.75rem;
            letter-spacing: 0.01em;
        }

        .section-header p {
            color: var(--color-text-muted);
            font-size: 0.9375rem;
            max-width: 640px;
            line-height: 1.8;
        }

        .section-header.center {
            text-align: center;
            align-items: center;
        }

        .section-header.center p {
            margin: 0 auto;
        }

        /* Cards Grid */
        .grid {
            display: grid;
            gap: 20px;
        }

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

        .grid-3 {
            grid-template-columns: repeat(3, 1fr);
        }

        .grid-4 {
            grid-template-columns: repeat(4, 1fr);
        }

        .card {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

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

        .card-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--color-highlight-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-highlight);
            font-size: 1.125rem;
            font-weight: 700;
            margin-bottom: 14px;
            flex-shrink: 0;
        }

        .card-icon.amber {
            background: var(--color-accent-light);
            color: var(--color-accent);
        }

        .card-icon.dark {
            background: rgba(42, 45, 62, 0.08);
            color: var(--color-primary);
        }

        .card h3 {
            margin-bottom: 8px;
            color: var(--color-primary);
            font-size: 1rem;
            line-height: 1.4;
        }

        .card p {
            color: var(--color-text-muted);
            font-size: 0.875rem;
            line-height: 1.7;
        }

        .card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-top: 12px;
            color: var(--color-highlight);
            font-size: 0.8125rem;
            font-weight: 600;
        }

        .card .card-link:hover {
            text-decoration: underline;
        }

        .card-img {
            border-radius: 8px;
            overflow: hidden;
            margin-bottom: 14px;
            aspect-ratio: 16/9;
            width: 100%;
        }

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

        /* Feature asymmetric layout */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .feature-card-horizontal {
            grid-column: span 2;
            display: grid;
            grid-template-columns: 1fr 0.8fr;
            gap: 20px;
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            align-items: center;
        }

        .feature-card-horizontal:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-highlight);
            transform: translateY(-2px);
        }

        .feature-card-horizontal .feature-info h3 {
            margin-bottom: 10px;
            color: var(--color-primary);
            font-size: 1.125rem;
        }

        .feature-card-horizontal .feature-info p {
            color: var(--color-text-muted);
            font-size: 0.875rem;
            line-height: 1.7;
        }

        .feature-card-horizontal .feature-img {
            border-radius: 8px;
            overflow: hidden;
            aspect-ratio: 4/3;
            width: 100%;
        }

        .feature-card-horizontal .feature-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .feature-card {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 22px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

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

        .feature-card .card-icon {
            width: 40px;
            height: 40px;
            font-size: 1rem;
        }

        .feature-card h3 {
            font-size: 0.9375rem;
            margin-bottom: 6px;
            color: var(--color-primary);
        }

        .feature-card p {
            font-size: 0.8125rem;
            color: var(--color-text-muted);
            line-height: 1.6;
        }

        /* Steps / Timeline */
        .steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .step-item {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 22px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            position: relative;
        }

        .step-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-highlight);
        }

        .step-num {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8125rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .step-item h3 {
            margin-bottom: 6px;
            color: var(--color-primary);
            font-size: 0.9375rem;
        }

        .step-item p {
            color: var(--color-text-muted);
            font-size: 0.8125rem;
            line-height: 1.6;
        }

        /* Price Cards */
        .price-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            align-items: stretch;
        }

        .price-card {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .price-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-highlight);
        }

        .price-card.featured {
            border-color: var(--color-accent);
            box-shadow: 0 4px 20px rgba(240, 160, 32, 0.12);
            position: relative;
        }

        .price-card .badge-recommend {
            display: inline-block;
            background: var(--color-accent);
            color: var(--color-primary);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: var(--radius-badge);
            margin-bottom: 10px;
            width: fit-content;
        }

        .price-card h3 {
            margin-bottom: 12px;
            color: var(--color-primary);
            font-size: 1.125rem;
        }

        .price-amount {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 16px;
        }

        .price-amount .unit {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-text-muted);
        }

        .price-card ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
            margin-bottom: 20px;
            flex: 1;
        }

        .price-card ul li {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--color-text-muted);
            font-size: 0.8125rem;
            line-height: 1.5;
        }

        .price-card ul li::before {
            content: '✓';
            color: var(--color-highlight);
            font-weight: 700;
            flex-shrink: 0;
        }

        .price-card .btn {
            width: 100%;
        }

        /* Testimonial */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .testimonial-card {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 22px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-highlight);
        }

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

        .testimonial-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            font-size: 0.875rem;
            flex-shrink: 0;
        }

        .testimonial-name {
            font-weight: 600;
            color: var(--color-primary);
            font-size: 0.875rem;
        }

        .testimonial-stars {
            color: var(--color-accent);
            font-size: 0.8125rem;
            letter-spacing: 1px;
        }

        .testimonial-card blockquote {
            color: var(--color-text-muted);
            font-size: 0.8125rem;
            line-height: 1.7;
            font-style: normal;
            border-left: 3px solid var(--color-highlight);
            padding-left: 12px;
        }

        /* Rating summary */
        .rating-summary {
            display: grid;
            grid-template-columns: 1fr 1.5fr;
            gap: 28px;
            align-items: center;
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
        }

        .rating-score {
            display: flex;
            flex-direction: column;
            gap: 8px;
            align-items: center;
            justify-content: center;
            padding: 16px;
        }

        .rating-score .big-number {
            font-size: 3rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1;
        }

        .rating-score .score-label {
            color: var(--color-text-muted);
            font-size: 0.8125rem;
        }

        .rating-bars {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .rating-bar-row {
            display: grid;
            grid-template-columns: 80px 1fr 36px;
            gap: 10px;
            align-items: center;
            font-size: 0.8125rem;
            color: var(--color-text-muted);
        }

        .rating-bar-track {
            height: 6px;
            background: var(--color-bg);
            border-radius: 3px;
            overflow: hidden;
        }

        .rating-bar-fill {
            height: 100%;
            background: var(--color-highlight);
            border-radius: 3px;
            transition: width 0.6s ease;
        }

        /* News List */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .news-item {
            display: grid;
            grid-template-columns: 80px 1fr auto;
            gap: 16px;
            align-items: center;
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 18px 22px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .news-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-highlight);
        }

        .news-date {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--color-highlight);
            text-align: center;
            line-height: 1.4;
            white-space: nowrap;
        }

        .news-info h3 {
            font-size: 0.9375rem;
            color: var(--color-primary);
            margin-bottom: 4px;
            line-height: 1.4;
        }

        .news-info p {
            font-size: 0.8125rem;
            color: var(--color-text-muted);
            line-height: 1.6;
        }

        .news-more {
            color: var(--color-highlight);
            font-size: 0.8125rem;
            font-weight: 600;
            white-space: nowrap;
        }

        .news-more:hover {
            text-decoration: underline;
        }

        /* Data Dashboard */
        .data-dashboard {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
        }

        .data-badges {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-bottom: 20px;
        }

        .data-badge {
            background: var(--color-bg);
            border-radius: 10px;
            padding: 16px;
            text-align: center;
            transition: var(--transition);
        }

        .data-badge:hover {
            background: var(--color-highlight-light);
        }

        .data-badge .num {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
        }

        .data-badge .label {
            font-size: 0.75rem;
            color: var(--color-text-muted);
            margin-top: 4px;
        }

        .data-trend {
            display: flex;
            align-items: flex-end;
            gap: 8px;
            height: 80px;
        }

        .data-trend .bar {
            flex: 1;
            background: var(--color-highlight);
            border-radius: 4px 4px 0 0;
            min-height: 16px;
            transition: var(--transition);
            opacity: 0.8;
        }

        .data-trend .bar:hover {
            opacity: 1;
            background: var(--color-accent);
        }

        .data-trend .bar-label {
            font-size: 0.6875rem;
            color: var(--color-text-muted);
            text-align: center;
        }

        /* Hot Projects */
        .hot-projects {
            display: flex;
            gap: 10px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            padding-bottom: 4px;
        }

        .hot-projects::-webkit-scrollbar {
            display: none;
        }

        .hot-project-card {
            min-width: 160px;
            flex-shrink: 0;
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 16px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            text-align: center;
        }

        .hot-project-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-highlight);
            transform: translateY(-2px);
        }

        .hot-project-card .project-name {
            font-weight: 600;
            color: var(--color-primary);
            font-size: 0.875rem;
            margin-bottom: 4px;
        }

        .hot-project-card .project-type {
            color: var(--color-text-muted);
            font-size: 0.75rem;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: 10px;
            padding: 18px 20px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--color-highlight);
        }

        .faq-item summary {
            font-weight: 600;
            color: var(--color-primary);
            cursor: pointer;
            font-size: 0.9375rem;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            user-select: none;
        }

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

        .faq-item summary::after {
            content: '+';
            font-weight: 400;
            font-size: 1.25rem;
            color: var(--color-text-muted);
            transition: transform 0.2s ease;
            flex-shrink: 0;
        }

        .faq-item[open] summary::after {
            transform: rotate(45deg);
            color: var(--color-highlight);
        }

        .faq-item .faq-answer {
            margin-top: 10px;
            color: var(--color-text-muted);
            font-size: 0.875rem;
            line-height: 1.7;
            padding-top: 10px;
            border-top: 1px solid var(--color-border);
        }

        /* Partners */
        .partner-wall {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }

        .partner-tag {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: 8px;
            color: var(--color-text-muted);
            font-size: 0.8125rem;
            font-weight: 500;
            transition: var(--transition);
        }

        .partner-tag:hover {
            border-color: var(--color-highlight);
            color: var(--color-highlight);
        }

        /* CTA Section */
        .cta-section {
            background: var(--color-dark);
            color: #fff;
            padding: 76px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/3f3220c3c09f7888.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            z-index: 1;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
            display: flex;
            flex-direction: column;
            gap: 20px;
            align-items: center;
        }

        .cta-section h2 {
            color: #fff;
            font-size: 1.75rem;
            letter-spacing: 0.01em;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.9375rem;
            max-width: 520px;
            line-height: 1.8;
        }

        .cta-badges {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-badge {
            display: flex;
            align-items: center;
            gap: 6px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.8125rem;
        }

        .cta-badge .shield {
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--color-highlight);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.625rem;
            color: #fff;
            flex-shrink: 0;
        }

        /* Footer */
        .site-footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 24px;
            margin-top: auto;
        }

        .site-footer .container {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
        }

        .footer-brand .logo {
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand .logo .logo-badge {
            background: rgba(255, 255, 255, 0.15);
            color: var(--color-accent);
        }

        .footer-brand p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.8125rem;
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 0.9375rem;
            margin-bottom: 14px;
            font-weight: 600;
        }

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.8125rem;
            padding: 4px 0;
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: var(--color-highlight);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            margin-top: 36px;
            padding-top: 20px;
            text-align: center;
            color: rgba(255, 255, 255, 0.45);
            font-size: 0.75rem;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            justify-content: center;
            align-items: center;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.75rem;
            text-decoration: underline;
            text-underline-offset: 2px;
        }

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

        .footer-bottom .sep {
            color: rgba(255, 255, 255, 0.25);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-card-horizontal {
                grid-column: span 2;
            }
            .data-badges {
                grid-template-columns: repeat(2, 1fr);
            }
            .site-footer .container {
                grid-template-columns: 1.5fr 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .hero {
                padding: 48px 0 28px;
            }
            .hero .container {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .hero h1 {
                font-size: 1.5rem;
            }
            .hero-subtitle {
                font-size: 0.875rem;
            }
            .grid-2,
            .grid-3 {
                grid-template-columns: 1fr;
            }
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .feature-card-horizontal {
                grid-column: span 1;
                grid-template-columns: 1fr;
            }
            .steps {
                grid-template-columns: 1fr;
            }
            .price-grid {
                grid-template-columns: 1fr;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .rating-summary {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .news-item {
                grid-template-columns: 1fr;
                gap: 8px;
            }
            .news-date {
                text-align: left;
            }
            .data-badges {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-section h2 {
                font-size: 1.375rem;
            }
            .site-footer .container {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .section {
                padding: 56px 0;
            }
            .section-header h2 {
                font-size: 1.375rem;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .hero-ctas {
                flex-direction: column;
            }
            .hero-ctas .btn {
                width: 100%;
            }
        }

        @media (max-width: 576px) {
            .container {
                padding: 0 16px;
            }
            .hero {
                padding: 36px 0 20px;
            }
            .hero h1 {
                font-size: 1.25rem;
            }
            .section {
                padding: 44px 0;
            }
            .data-badges {
                grid-template-columns: 1fr 1fr;
            }
            .hero-badges {
                flex-direction: column;
                gap: 6px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 4px;
            }
        }

/* roulang page: category1 */
:root {
 --color-primary: #2A2D3E;
 --color-accent: #F0A020;
 --color-highlight: #2EC4B6;
 --color-bg: #F7F7FA;
 --color-dark: #1B1D2A;
 --color-text: #1A1C26;
 --color-text-muted: #5A5E6E;
 --color-border: #E3E4EB;
 --color-white: #FFFFFF;
 --color-accent-dark: #D98A12;
 --color-highlight-light: rgba(46, 196, 182, 0.1);
 --color-accent-light: rgba(240, 160, 32, 0.1);
 --radius-card: 12px;
 --radius-btn: 10px;
 --radius-pill: 22px;
 --radius-badge: 6px;
 --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.04);
 --shadow-card-hover: 0 8px 24px rgba(0, 0, 0, 0.08);
 --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
 --max-container: 1200px;
 --section-padding: 88px 0;
 --transition: all 0.25s ease;
 }
 html {
 scroll-behavior: smooth;
 font-size: 16px;
 -webkit-font-smoothing: antialiased;
 -moz-osx-font-smoothing: grayscale;
 }
 body {
 font-family: var(--font-family);
 font-size: 0.9375rem;
 font-weight: 400;
 line-height: 1.85;
 color: var(--color-text);
 background-color: var(--color-bg);
 min-height: 100vh;
 display: flex;
 flex-direction: column;
 }
 img {
 max-width: 100%;
 height: auto;
 display: block;
 }
 a {
 color: var(--color-text);
 text-decoration: none;
 transition: var(--transition);
 }
 a:hover {
 color: var(--color-highlight);
 }
 button,
 input,
 textarea,
 select {
 font-family: var(--font-family);
 font-size: inherit;
 outline: none;
 border: none;
 }
 button {
 cursor: pointer;
 background: none;
 }
 .container {
 max-width: var(--max-container);
 margin: 0 auto;
 padding: 0 24px;
 }
 .site-header {
 background: var(--color-white);
 border-bottom: 1px solid var(--color-border);
 position: sticky;
 top: 0;
 z-index: 100;
 box-shadow: 0 1px 4px rgba(0, 0, 0, 0.02);
 }
 .site-header .container {
 display: flex;
 align-items: center;
 justify-content: space-between;
 height: 68px;
 gap: 24px;
 }
 .logo {
 display: flex;
 align-items: center;
 gap: 8px;
 font-size: 1.25rem;
 font-weight: 700;
 color: var(--color-primary);
 flex-shrink: 0;
 letter-spacing: 0.02em;
 }
 .logo .logo-badge {
 width: 32px;
 height: 32px;
 background: var(--color-primary);
 border-radius: 8px;
 display: flex;
 align-items: center;
 justify-content: center;
 color: var(--color-accent);
 font-size: 0.875rem;
 font-weight: 700;
 flex-shrink: 0;
 }
 .logo:hover {
 color: var(--color-primary);
 }
 .main-nav {
 display: flex;
 align-items: center;
 gap: 6px;
 flex: 1;
 justify-content: center;
 }
 .main-nav a {
 padding: 8px 14px;
 font-size: 0.875rem;
 font-weight: 500;
 color: var(--color-text-muted);
 border-radius: 8px;
 white-space: nowrap;
 transition: var(--transition);
 letter-spacing: 0.01em;
 }
 .main-nav a:hover {
 color: var(--color-highlight);
 background: var(--color-highlight-light);
 }
 .main-nav a.active {
 color: var(--color-primary);
 background: rgba(42, 45, 62, 0.06);
 font-weight: 600;
 }
 .nav-cta {
 background: var(--color-accent);
 color: var(--color-primary);
 padding: 9px 18px;
 border-radius: var(--radius-btn);
 font-size: 0.875rem;
 font-weight: 600;
 white-space: nowrap;
 transition: var(--transition);
 flex-shrink: 0;
 letter-spacing: 0.01em;
 }
 .nav-cta:hover {
 background: var(--color-accent-dark);
 color: var(--color-primary);
 }
 .nav-toggle {
 display: none;
 flex-direction: column;
 gap: 5px;
 width: 40px;
 height: 40px;
 align-items: center;
 justify-content: center;
 border-radius: 8px;
 flex-shrink: 0;
 }
 .nav-toggle span {
 width: 20px;
 height: 2px;
 background: var(--color-primary);
 border-radius: 2px;
 transition: var(--transition);
 }
 .nav-toggle[aria-expanded="true"] span:nth-child(1) {
 transform: translateY(7px) rotate(45deg);
 }
 .nav-toggle[aria-expanded="true"] span:nth-child(2) {
 opacity: 0;
 }
 .nav-toggle[aria-expanded="true"] span:nth-child(3) {
 transform: translateY(-7px) rotate(-45deg);
 }
 .mobile-nav {
 display: none;
 flex-direction: column;
 gap: 4px;
 padding: 12px 24px 20px;
 background: var(--color-white);
 border-top: 1px solid var(--color-border);
 position: absolute;
 top: 68px;
 left: 0;
 right: 0;
 z-index: 99;
 box-shadow: 0 12px 24px rgba(0, 0, 0, 0.06);
 }
 .mobile-nav.open {
 display: flex;
 }
 .mobile-nav a {
 padding: 10px 12px;
 font-size: 0.9375rem;
 font-weight: 500;
 color: var(--color-text-muted);
 border-radius: 8px;
 }
 .mobile-nav a:hover {
 color: var(--color-highlight);
 background: var(--color-highlight-light);
 }
 .mobile-nav a.active {
 color: var(--color-primary);
 background: rgba(42, 45, 62, 0.06);
 font-weight: 600;
 }
 main {
 flex: 1;
 }
 .breadcrumb {
 padding: 22px 0 0;
 font-size: 0.8125rem;
 color: var(--color-text-muted);
 }
 .breadcrumb a {
 color: var(--color-text-muted);
 }
 .breadcrumb a:hover {
 color: var(--color-highlight);
 }
 .breadcrumb .sep {
 margin: 0 8px;
 color: #b4b7c3;
 }
 .category-header {
 padding: 28px 0 18px;
 }
 .category-header h1 {
 font-size: 1.875rem;
 line-height: 1.3;
 font-weight: 700;
 color: var(--color-primary);
 margin: 0 0 12px;
 letter-spacing: 0.01em;
 }
 .category-header .subtitle {
 font-size: 0.9375rem;
 color: var(--color-text-muted);
 max-width: 760px;
 margin: 0;
 line-height: 1.8;
 }
 .section {
 padding: 56px 0;
 }
 .section-alt {
 background: var(--color-white);
 border-top: 1px solid var(--color-border);
 border-bottom: 1px solid var(--color-border);
 }
 .section-title {
 font-size: 1.25rem;
 font-weight: 700;
 color: var(--color-primary);
 margin: 0 0 22px;
 letter-spacing: 0.01em;
 display: flex;
 align-items: center;
 gap: 10px;
 }
 .section-title::before {
 content: "";
 width: 4px;
 height: 22px;
 background: var(--color-highlight);
 border-radius: 2px;
 flex-shrink: 0;
 }
 .data-badges {
 display: grid;
 grid-template-columns: repeat(5, 1fr);
 gap: 14px;
 margin-top: 26px;
 }
 .badge-item {
 background: var(--color-white);
 border: 1px solid var(--color-border);
 border-radius: var(--radius-card);
 padding: 18px 16px;
 text-align: left;
 transition: var(--transition);
 box-shadow: var(--shadow-card);
 }
 .badge-item:hover {
 box-shadow: var(--shadow-card-hover);
 border-color: var(--color-highlight);
 }
 .badge-item .badge-num {
 font-size: 1.5rem;
 font-weight: 700;
 color: var(--color-highlight);
 line-height: 1.2;
 display: block;
 margin-bottom: 4px;
 }
 .badge-item .badge-label {
 font-size: 0.75rem;
 color: var(--color-text-muted);
 line-height: 1.5;
 }
 .article-list {
 display: flex;
 flex-direction: column;
 gap: 20px;
 }
 .article-card {
 display: flex;
 gap: 20px;
 background: var(--color-white);
 border: 1px solid var(--color-border);
 border-radius: var(--radius-card);
 padding: 18px;
 box-shadow: var(--shadow-card);
 transition: var(--transition);
 }
 .article-card:hover {
 box-shadow: var(--shadow-card-hover);
 border-color: var(--color-highlight);
 }
 .article-thumb {
 width: 240px;
 min-width: 240px;
 height: 148px;
 border-radius: 8px;
 overflow: hidden;
 background: #e8e9ef;
 }
 .article-thumb img {
 width: 100%;
 height: 100%;
 object-fit: cover;
 }
 .article-body {
 flex: 1;
 display: flex;
 flex-direction: column;
 min-width: 0;
 }
 .article-date {
 font-size: 0.75rem;
 color: var(--color-text-muted);
 margin-bottom: 6px;
 letter-spacing: 0.02em;
 }
 .article-title {
 font-size: 1.0625rem;
 font-weight: 600;
 color: var(--color-primary);
 line-height: 1.45;
 margin: 0 0 8px;
 transition: var(--transition);
 }
 .article-title:hover {
 color: var(--color-highlight);
 }
 .article-summary {
 font-size: 0.875rem;
 color: var(--color-text-muted);
 line-height: 1.75;
 margin: 0 0 12px;
 display: -webkit-box;
 -webkit-line-clamp: 2;
 -webkit-box-orient: vertical;
 overflow: hidden;
 }
 .read-more {
 align-self: flex-start;
 font-size: 0.8125rem;
 font-weight: 600;
 color: var(--color-highlight);
 padding: 4px 0;
 border-bottom: 1px solid transparent;
 transition: var(--transition);
 }
 .read-more:hover {
 color: #249b8e;
 border-bottom-color: #249b8e;
 }
 .tag-cloud {
 display: flex;
 flex-wrap: wrap;
 gap: 10px;
 }
 .tag {
 display: inline-block;
 padding: 6px 14px;
 background: var(--color-white);
 border: 1px solid var(--color-border);
 border-radius: var(--radius-pill);
 font-size: 0.8125rem;
 color: var(--color-text-muted);
 transition: var(--transition);
 }
 .tag:hover {
 border-color: var(--color-highlight);
 color: var(--color-highlight);
 box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
 }
 .analyst-grid {
 display: grid;
 grid-template-columns: repeat(3, 1fr);
 gap: 18px;
 }
 .analyst-card {
 background: var(--color-white);
 border: 1px solid var(--color-border);
 border-left: 3px solid var(--color-highlight);
 border-radius: var(--radius-card);
 padding: 20px;
 box-shadow: var(--shadow-card);
 transition: var(--transition);
 }
 .analyst-card:hover {
 box-shadow: var(--shadow-card-hover);
 }
 .analyst-card .quote-mark {
 font-size: 1.5rem;
 color: var(--color-highlight);
 line-height: 1;
 display: block;
 margin-bottom: 8px;
 font-weight: 700;
 }
 .analyst-card p {
 font-size: 0.875rem;
 color: var(--color-text);
 line-height: 1.75;
 margin: 0 0 10px;
 }
 .analyst-card .analyst-name {
 font-size: 0.75rem;
 color: var(--color-text-muted);
 font-weight: 500;
 }
 .subscribe-cta {
 background: var(--color-dark);
 border-radius: var(--radius-card);
 padding: 42px 36px;
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 30px;
 flex-wrap: wrap;
 position: relative;
 overflow: hidden;
 }
 .subscribe-cta::after {
 content: "";
 position: absolute;
 right: -60px;
 top: -60px;
 width: 220px;
 height: 220px;
 background: radial-gradient(circle, rgba(46, 196, 182, 0.18), transparent 70%);
 border-radius: 50%;
 pointer-events: none;
 }
 .subscribe-cta .cta-text h3 {
 font-size: 1.25rem;
 font-weight: 700;
 color: var(--color-white);
 margin: 0 0 8px;
 }
 .subscribe-cta .cta-text p {
 font-size: 0.875rem;
 color: rgba(255, 255, 255, 0.7);
 margin: 0;
 line-height: 1.7;
 }
 .subscribe-form {
 display: flex;
 gap: 10px;
 flex-shrink: 0;
 position: relative;
 z-index: 1;
 }
 .subscribe-form input {
 width: 260px;
 padding: 10px 14px;
 background: rgba(255, 255, 255, 0.08);
 border: 1px solid rgba(255, 255, 255, 0.2);
 border-radius: var(--radius-btn);
 color: var(--color-white);
 font-size: 0.875rem;
 transition: var(--transition);
 }
 .subscribe-form input::placeholder {
 color: rgba(255, 255, 255, 0.45);
 }
 .subscribe-form input:focus {
 border-color: var(--color-highlight);
 box-shadow: 0 0 0 3px rgba(46, 196, 182, 0.25);
 }
 .subscribe-form button {
 background: var(--color-accent);
 color: var(--color-primary);
 padding: 10px 22px;
 border-radius: var(--radius-btn);
 font-weight: 600;
 font-size: 0.875rem;
 transition: var(--transition);
 flex-shrink: 0;
 }
 .subscribe-form button:hover {
 background: var(--color-accent-dark);
 }
 .related-cats {
 display: flex;
 flex-wrap: wrap;
 gap: 12px;
 }
 .cat-chip {
 display: inline-flex;
 align-items: center;
 gap: 6px;
 padding: 9px 18px;
 background: var(--color-white);
 border: 1px solid var(--color-border);
 border-radius: var(--radius-pill);
 font-size: 0.875rem;
 font-weight: 500;
 color: var(--color-text);
 transition: var(--transition);
 }
 .cat-chip:hover {
 border-color: var(--color-highlight);
 color: var(--color-highlight);
 box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
 }
 .cat-chip .chip-icon {
 width: 6px;
 height: 6px;
 background: var(--color-highlight);
 border-radius: 50%;
 flex-shrink: 0;
 }
 .faq-list {
 display: flex;
 flex-direction: column;
 gap: 12px;
 }
 .faq-item {
 background: var(--color-white);
 border: 1px solid var(--color-border);
 border-radius: var(--radius-card);
 overflow: hidden;
 box-shadow: var(--shadow-card);
 transition: var(--transition);
 }
 .faq-item:hover {
 border-color: #cdd0da;
 }
 .faq-item summary {
 padding: 16px 20px;
 font-size: 0.9375rem;
 font-weight: 600;
 color: var(--color-primary);
 cursor: pointer;
 list-style: none;
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 14px;
 }
 .faq-item summary::-webkit-details-marker {
 display: none;
 }
 .faq-item summary::after {
 content: "+";
 font-size: 1.25rem;
 color: var(--color-text-muted);
 font-weight: 400;
 transition: var(--transition);
 flex-shrink: 0;
 }
 .faq-item[open] summary::after {
 content: "−";
 color: var(--color-highlight);
 }
 .faq-item .faq-answer {
 padding: 0 20px 18px;
 font-size: 0.875rem;
 color: var(--color-text-muted);
 line-height: 1.8;
 }
 .site-footer {
 background: var(--color-dark);
 color: rgba(255, 255, 255, 0.78);
 padding: 56px 0 28px;
 margin-top: 0;
 }
 .site-footer .container {
 display: flex;
 flex-wrap: wrap;
 gap: 40px;
 }
 .footer-brand {
 flex: 2;
 min-width: 240px;
 }
 .footer-brand .logo {
 color: var(--color-white);
 margin-bottom: 14px;
 }
 .footer-brand .logo .logo-badge {
 background: var(--color-accent);
 color: var(--color-primary);
 }
 .footer-brand p {
 font-size: 0.8125rem;
 line-height: 1.75;
 margin: 0;
 color: rgba(255, 255, 255, 0.62);
 max-width: 360px;
 }
 .footer-col {
 flex: 1;
 min-width: 140px;
 display: flex;
 flex-direction: column;
 gap: 10px;
 }
 .footer-col h4 {
 font-size: 0.9375rem;
 font-weight: 600;
 color: var(--color-white);
 margin: 0 0 4px;
 letter-spacing: 0.01em;
 }
 .footer-col a {
 font-size: 0.8125rem;
 color: rgba(255, 255, 255, 0.62);
 }
 .footer-col a:hover {
 color: var(--color-highlight);
 }
 .footer-bottom {
 width: 100%;
 border-top: 1px solid rgba(255, 255, 255, 0.12);
 padding-top: 20px;
 margin-top: 16px;
 display: flex;
 align-items: center;
 flex-wrap: wrap;
 gap: 8px;
 font-size: 0.75rem;
 color: rgba(255, 255, 255, 0.5);
 }
 .footer-bottom a {
 color: rgba(255, 255, 255, 0.62);
 }
 .footer-bottom a:hover {
 color: var(--color-highlight);
 }
 .footer-bottom .sep {
 color: rgba(255, 255, 255, 0.25);
 }
 @media (max-width: 1024px) {
 .data-badges {
 grid-template-columns: repeat(3, 1fr);
 }
 .analyst-grid {
 grid-template-columns: repeat(2, 1fr);
 }
 .article-thumb {
 width: 190px;
 min-width: 190px;
 height: 130px;
 }
 .subscribe-cta {
 padding: 34px 26px;
 }
 }
 @media (max-width: 768px) {
 .main-nav,
 .nav-cta {
 display: none;
 }
 .nav-toggle {
 display: flex;
 }
 .site-header .container {
 height: 60px;
 }
 .mobile-nav {
 top: 60px;
 }
 .category-header h1 {
 font-size: 1.5rem;
 }
 .section {
 padding: 40px 0;
 }
 .data-badges {
 grid-template-columns: repeat(2, 1fr);
 }
 .article-card {
 flex-direction: column;
 gap: 14px;
 }
 .article-thumb {
 width: 100%;
 min-width: 0;
 height: 180px;
 }
 .analyst-grid {
 grid-template-columns: 1fr;
 }
 .subscribe-cta {
 flex-direction: column;
 align-items: flex-start;
 }
 .subscribe-form {
 width: 100%;
 }
 .subscribe-form input {
 flex: 1;
 width: 100%;
 }
 }
 @media (max-width: 520px) {
 .data-badges {
 grid-template-columns: 1fr;
 }
 .category-header h1 {
 font-size: 1.3125rem;
 }
 .article-thumb {
 height: 160px;
 }
 .subscribe-form {
 flex-direction: column;
 width: 100%;
 }
 .subscribe-form button {
 width: 100%;
 }
 .tag-cloud {
 gap: 8px;
 }
 .tag {
 padding: 5px 12px;
 font-size: 0.75rem;
 }
 .related-cats {
 gap: 8px;
 }
 .cat-chip {
 padding: 7px 14px;
 font-size: 0.8125rem;
 }
 .footer-bottom {
 flex-direction: column;
 align-items: flex-start;
 }
 }

/* roulang page: category2 */
:root {
            --color-primary: #2A2D3E;
            --color-accent: #F0A020;
            --color-highlight: #2EC4B6;
            --color-bg: #F7F7FA;
            --color-dark: #1B1D2A;
            --color-text: #1A1C26;
            --color-text-muted: #5A5E6E;
            --color-border: #E3E4EB;
            --color-white: #FFFFFF;
            --color-accent-dark: #D98A12;
            --color-highlight-light: rgba(46, 196, 182, 0.1);
            --color-accent-light: rgba(240, 160, 32, 0.1);
            --radius-card: 12px;
            --radius-btn: 10px;
            --radius-pill: 22px;
            --radius-badge: 6px;
            --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 8px 24px rgba(0, 0, 0, 0.08);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --max-container: 1200px;
            --section-padding: 72px 0;
            --transition: all 0.25s ease;
            --shadow-lg: 0 16px 40px rgba(27, 29, 42, 0.12);
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family);
            font-size: 0.9375rem;
            font-weight: 400;
            line-height: 1.85;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            overflow-x: hidden;
        }

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

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

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

        button,
        input,
        textarea,
        select {
            font-family: var(--font-family);
            font-size: inherit;
            outline: none;
            border: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

        .container {
            max-width: var(--max-container);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header / Nav */
        .site-header {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.02);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 24px;
            position: relative;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-primary);
            flex-shrink: 0;
            letter-spacing: 0.02em;
        }

        .logo .logo-badge {
            width: 32px;
            height: 32px;
            background: var(--color-primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 0.875rem;
            font-weight: 700;
            flex-shrink: 0;
        }

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

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }

        .main-nav a {
            padding: 8px 14px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-text-muted);
            border-radius: 8px;
            white-space: nowrap;
            transition: var(--transition);
            letter-spacing: 0.01em;
        }

        .main-nav a:hover {
            color: var(--color-highlight);
            background: var(--color-highlight-light);
        }

        .main-nav a.active {
            color: var(--color-primary);
            background: rgba(42, 45, 62, 0.06);
            font-weight: 600;
        }

        .nav-cta {
            background: var(--color-accent);
            color: var(--color-primary);
            padding: 9px 18px;
            border-radius: var(--radius-btn);
            font-size: 0.875rem;
            font-weight: 600;
            white-space: nowrap;
            transition: var(--transition);
            flex-shrink: 0;
            letter-spacing: 0.01em;
        }

        .nav-cta:hover {
            background: var(--color-accent-dark);
            color: var(--color-primary);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            flex-shrink: 0;
        }

        .nav-toggle span {
            width: 20px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: var(--transition);
        }

        .nav-toggle[aria-expanded="true"] span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle[aria-expanded="true"] span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-nav {
            display: none;
            flex-direction: column;
            gap: 4px;
            padding: 12px 24px 20px;
            background: var(--color-white);
            border-top: 1px solid var(--color-border);
            position: absolute;
            top: 68px;
            left: 0;
            right: 0;
            z-index: 99;
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.06);
        }

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

        .mobile-nav a {
            padding: 10px 16px;
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--color-text);
            border-radius: 8px;
        }

        .mobile-nav a:hover {
            background: var(--color-bg);
            color: var(--color-highlight);
        }

        .mobile-nav a.active {
            background: var(--color-bg);
            color: var(--color-primary);
            font-weight: 600;
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            padding: 12px 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8125rem;
            color: var(--color-text-muted);
            flex-wrap: wrap;
        }

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

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

        .breadcrumb .sep {
            color: var(--color-border);
            user-select: none;
        }

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

        /* Category Page Header */
        .category-header {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            padding: 40px 0 28px;
        }

        .category-header .container {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .category-header-content {
            flex: 1;
            min-width: 280px;
        }

        .category-tag {
            display: inline-block;
            background: var(--color-highlight-light);
            color: var(--color-highlight);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }

        .category-header-content h1 {
            font-size: 1.875rem;
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-primary);
            margin-bottom: 10px;
        }

        .category-header-content .subtitle {
            font-size: 0.9375rem;
            color: var(--color-text-muted);
            line-height: 1.8;
            max-width: 620px;
        }

        .category-header-stats {
            display: flex;
            gap: 32px;
            flex-shrink: 0;
        }

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

        .stat-mini .num {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
        }

        .stat-mini .label {
            font-size: 0.75rem;
            color: var(--color-text-muted);
            margin-top: 4px;
        }

        /* Article Grid */
        .articles-section {
            padding: var(--section-padding);
            background: var(--color-bg);
        }

        .section-heading {
            margin-bottom: 28px;
        }

        .section-heading h2 {
            font-size: 1.375rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.35;
            margin-bottom: 6px;
        }

        .section-heading p {
            font-size: 0.875rem;
            color: var(--color-text-muted);
        }

        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .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: var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .article-card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            background: var(--color-bg);
        }

        .article-card-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .article-date {
            font-size: 0.75rem;
            color: var(--color-text-muted);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }

        .article-card-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-primary);
            line-height: 1.45;
            margin-bottom: 8px;
        }

        .article-card-excerpt {
            font-size: 0.8125rem;
            color: var(--color-text-muted);
            line-height: 1.75;
            flex: 1;
            margin-bottom: 12px;
        }

        .article-more {
            font-size: 0.8125rem;
            font-weight: 600;
            color: var(--color-highlight);
            align-self: flex-start;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .article-more:hover {
            text-decoration: underline;
            color: var(--color-primary);
        }

        .article-more::after {
            content: "→";
            transition: var(--transition);
        }

        .article-more:hover::after {
            transform: translateX(3px);
        }

        /* Difficulty Filter */
        .difficulty-filter-section {
            padding: 0 0 28px;
            background: var(--color-bg);
        }

        .difficulty-filter {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .diff-pill {
            padding: 8px 20px;
            border-radius: var(--radius-pill);
            font-size: 0.8125rem;
            font-weight: 500;
            color: var(--color-text-muted);
            background: var(--color-white);
            border: 1px solid var(--color-border);
            cursor: pointer;
            transition: var(--transition);
            letter-spacing: 0.01em;
        }

        .diff-pill:hover {
            border-color: var(--color-highlight);
            color: var(--color-highlight);
            background: var(--color-highlight-light);
        }

        .diff-pill.active {
            background: var(--color-primary);
            color: var(--color-white);
            border-color: var(--color-primary);
            font-weight: 600;
        }

        /* Steps Section */
        .steps-section {
            padding: var(--section-padding);
            background: var(--color-white);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            counter-reset: step-counter;
        }

        .step-card {
            position: relative;
            padding: 24px 20px;
            background: var(--color-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            transition: var(--transition);
        }

        .step-card:hover {
            border-color: var(--color-highlight);
            box-shadow: var(--shadow-card-hover);
        }

        .step-number {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--color-primary);
            color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9375rem;
            margin-bottom: 14px;
            flex-shrink: 0;
        }

        .step-card h3 {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .step-card p {
            font-size: 0.8125rem;
            color: var(--color-text-muted);
            line-height: 1.7;
        }

        /* Authors Section */
        .authors-section {
            padding: var(--section-padding);
            background: var(--color-bg);
        }

        .authors-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .author-card {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            text-align: center;
        }

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

        .author-avatar {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--color-primary);
            color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.375rem;
            font-weight: 700;
            margin: 0 auto 14px;
            letter-spacing: 0.04em;
        }

        .author-card h3 {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 4px;
        }

        .author-role {
            font-size: 0.75rem;
            color: var(--color-highlight);
            font-weight: 500;
            margin-bottom: 10px;
            letter-spacing: 0.03em;
        }

        .author-card p {
            font-size: 0.8125rem;
            color: var(--color-text-muted);
            line-height: 1.7;
        }

        /* Related Categories */
        .related-categories-section {
            padding: var(--section-padding);
            background: var(--color-white);
            border-top: 1px solid var(--color-border);
        }

        .related-chips {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .related-chip {
            padding: 10px 22px;
            border-radius: var(--radius-pill);
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-primary);
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            cursor: pointer;
            transition: var(--transition);
            letter-spacing: 0.01em;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .related-chip:hover {
            border-color: var(--color-highlight);
            color: var(--color-highlight);
            background: var(--color-highlight-light);
        }

        .related-chip .chip-icon {
            font-size: 0.9375rem;
        }

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

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

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

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

        .faq-item summary {
            padding: 18px 24px;
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--color-primary);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            user-select: none;
            transition: var(--transition);
        }

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

        .faq-item summary::after {
            content: "+";
            font-size: 1.25rem;
            font-weight: 400;
            color: var(--color-text-muted);
            flex-shrink: 0;
            transition: var(--transition);
        }

        .faq-item[open] summary::after {
            content: "−";
            color: var(--color-highlight);
        }

        .faq-item summary:hover {
            color: var(--color-highlight);
        }

        .faq-item .faq-answer {
            padding: 0 24px 20px;
            font-size: 0.875rem;
            color: var(--color-text-muted);
            line-height: 1.75;
        }

        /* Footer */
        .site-footer {
            background: var(--color-dark);
            padding: 56px 0 24px;
            margin-top: auto;
        }

        .site-footer .container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
        }

        .footer-brand .logo {
            color: var(--color-white);
            margin-bottom: 12px;
        }

        .footer-brand .logo:hover {
            color: var(--color-white);
        }

        .footer-brand .logo .logo-badge {
            background: var(--color-accent);
            color: var(--color-primary);
        }

        .footer-brand p {
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.75;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--color-white);
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }

        .footer-col a {
            display: block;
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.55);
            padding: 5px 0;
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: var(--color-highlight);
            transform: translateX(2px);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 40px;
            padding-top: 20px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.45);
            grid-column: 1 / -1;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.45);
            transition: var(--transition);
        }

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

        .footer-bottom .sep {
            margin: 0 8px;
            color: rgba(255, 255, 255, 0.2);
        }

        /* Focus states */
        a:focus-visible,
        button:focus-visible,
        summary:focus-visible {
            outline: 2px solid var(--color-highlight);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* Responsive */
        @media (max-width: 991px) {
            .article-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

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

            .category-header-stats {
                gap: 20px;
            }

            .site-footer .container {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }

            .nav-cta {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .category-header .container {
                flex-direction: column;
                gap: 20px;
            }

            .category-header-stats {
                width: 100%;
                justify-content: flex-start;
                gap: 28px;
            }

            .category-header-content h1 {
                font-size: 1.5rem;
            }

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

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

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

            .site-footer .container {
                grid-template-columns: 1fr;
                gap: 24px;
            }

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

            .footer-bottom .sep {
                display: none;
            }
        }

        @media (max-width: 520px) {
            :root {
                --section-padding: 48px 0;
            }

            .container {
                padding: 0 16px;
            }

            .category-header {
                padding: 28px 0 20px;
            }

            .category-header-content h1 {
                font-size: 1.25rem;
            }

            .difficulty-filter {
                gap: 8px;
            }

            .diff-pill {
                padding: 6px 14px;
                font-size: 0.75rem;
            }

            .article-card-body {
                padding: 14px 16px 16px;
            }

            .article-card-title {
                font-size: 0.9375rem;
            }

            .related-chip {
                padding: 8px 16px;
                font-size: 0.8125rem;
            }

            .faq-item summary {
                padding: 14px 16px;
                font-size: 0.875rem;
            }

            .faq-item .faq-answer {
                padding: 0 16px 16px;
                font-size: 0.8125rem;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #2A2D3E;
            --color-accent: #F0A020;
            --color-highlight: #2EC4B6;
            --color-bg: #F7F7FA;
            --color-dark: #1B1D2A;
            --color-text: #1A1C26;
            --color-text-muted: #5A5E6E;
            --color-border: #E3E4EB;
            --color-white: #FFFFFF;
            --color-accent-dark: #D98A12;
            --color-highlight-light: rgba(46, 196, 182, 0.1);
            --color-accent-light: rgba(240, 160, 32, 0.1);
            --color-dark-light: rgba(27, 29, 42, 0.04);
            --radius-card: 12px;
            --radius-btn: 10px;
            --radius-pill: 22px;
            --radius-badge: 6px;
            --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 8px 24px rgba(0, 0, 0, 0.08);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --max-container: 1200px;
            --section-padding: 88px 0;
            --transition: all 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family);
            font-size: 0.9375rem;
            font-weight: 400;
            line-height: 1.85;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

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

        button,
        input,
        textarea,
        select {
            font-family: var(--font-family);
            font-size: inherit;
            outline: none;
            border: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

        .container {
            max-width: var(--max-container);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header / Nav */
        .site-header {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.02);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 24px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-primary);
            flex-shrink: 0;
            letter-spacing: 0.02em;
        }

        .logo .logo-badge {
            width: 32px;
            height: 32px;
            background: var(--color-primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 0.875rem;
            font-weight: 700;
            flex-shrink: 0;
        }

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

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }

        .main-nav a {
            padding: 8px 14px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-text-muted);
            border-radius: 8px;
            white-space: nowrap;
            transition: var(--transition);
            letter-spacing: 0.01em;
        }

        .main-nav a:hover {
            color: var(--color-highlight);
            background: var(--color-highlight-light);
        }

        .main-nav a.active {
            color: var(--color-primary);
            background: rgba(42, 45, 62, 0.06);
            font-weight: 600;
        }

        .nav-cta {
            background: var(--color-accent);
            color: var(--color-primary);
            padding: 9px 18px;
            border-radius: var(--radius-btn);
            font-size: 0.875rem;
            font-weight: 600;
            white-space: nowrap;
            transition: var(--transition);
            flex-shrink: 0;
            letter-spacing: 0.01em;
        }

        .nav-cta:hover {
            background: var(--color-accent-dark);
            color: var(--color-primary);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            flex-shrink: 0;
        }

        .nav-toggle span {
            width: 20px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: var(--transition);
        }

        .nav-toggle[aria-expanded="true"] span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle[aria-expanded="true"] span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-nav {
            display: none;
            flex-direction: column;
            gap: 4px;
            padding: 12px 24px 20px;
            background: var(--color-white);
            border-top: 1px solid var(--color-border);
            position: absolute;
            top: 68px;
            left: 0;
            right: 0;
            z-index: 99;
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.06);
        }

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

        .mobile-nav a {
            padding: 12px 8px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-muted);
            border-radius: 8px;
            transition: var(--transition);
        }

        .mobile-nav a:hover {
            background: var(--color-highlight-light);
            color: var(--color-highlight);
        }

        .mobile-nav a.active {
            color: var(--color-primary);
            background: rgba(42, 45, 62, 0.06);
            font-weight: 600;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            color: var(--color-text-muted);
            margin-bottom: 12px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--color-text-muted);
            transition: var(--transition);
        }

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

        .breadcrumb .sep {
            color: var(--color-border);
            font-size: 0.7rem;
        }

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

        /* Category Header */
        .category-header {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            padding: 36px 0 28px;
        }

        .category-header .container {
            max-width: var(--max-container);
        }

        .category-header h1 {
            font-size: 2rem;
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-primary);
            letter-spacing: 0.01em;
            margin-bottom: 8px;
        }

        .category-header .subtitle {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            max-width: 680px;
            line-height: 1.7;
        }

        .category-tag-row {
            display: flex;
            gap: 8px;
            margin-top: 16px;
            flex-wrap: wrap;
        }

        .category-tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            background: var(--color-highlight-light);
            color: var(--color-highlight);
            font-size: 0.75rem;
            font-weight: 500;
            letter-spacing: 0.02em;
        }

        /* Section Base */
        .section {
            padding: 56px 0;
        }

        .section-alt {
            background: var(--color-white);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        .section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 28px;
            gap: 16px;
            flex-wrap: wrap;
        }

        .section-header h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.3;
            letter-spacing: 0.01em;
        }

        .section-header .section-desc {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            max-width: 480px;
            line-height: 1.7;
        }

        .section-link {
            color: var(--color-highlight);
            font-size: 0.85rem;
            font-weight: 600;
            white-space: nowrap;
            transition: var(--transition);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .section-link:hover {
            color: var(--color-text);
            text-decoration-color: var(--color-highlight);
        }

        /* Data Cards Grid */
        .data-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .data-card {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 20px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .data-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--color-highlight);
            opacity: 0;
            transition: var(--transition);
        }

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

        .data-card:hover::before {
            opacity: 1;
        }

        .data-card-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 10px;
            gap: 8px;
        }

        .data-card-league {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--color-primary);
            background: var(--color-dark-light);
            padding: 3px 10px;
            border-radius: var(--radius-badge);
            letter-spacing: 0.02em;
        }

        .data-card-status {
            font-size: 0.7rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: var(--radius-badge);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .status-upcoming {
            background: var(--color-accent-light);
            color: var(--color-accent-dark);
        }

        .status-live {
            background: var(--color-highlight-light);
            color: var(--color-highlight);
        }

        .status-closed {
            background: rgba(90, 94, 110, 0.1);
            color: var(--color-text-muted);
        }

        .data-card-matchup {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 14px;
            letter-spacing: 0.01em;
            line-height: 1.4;
        }

        .data-card-odds {
            display: flex;
            gap: 12px;
            margin-bottom: 14px;
            flex-wrap: wrap;
        }

        .odds-item {
            flex: 1;
            min-width: 70px;
            background: var(--color-bg);
            border-radius: 8px;
            padding: 8px 10px;
            text-align: center;
        }

        .odds-label {
            font-size: 0.7rem;
            color: var(--color-text-muted);
            display: block;
            margin-bottom: 2px;
        }

        .odds-value {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: 0.02em;
        }

        .data-card-time {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .data-card-time .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--color-highlight);
            flex-shrink: 0;
        }

        /* Update Timestamp */
        .update-stamp-bar {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 14px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-card);
        }

        .update-stamp-left {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .update-stamp-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--color-highlight-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-highlight);
            font-size: 1rem;
            flex-shrink: 0;
        }

        .update-stamp-text {
            font-size: 0.85rem;
            color: var(--color-text-muted);
        }

        .update-stamp-text strong {
            color: var(--color-text);
            font-weight: 600;
        }

        .update-stamp-badge {
            background: var(--color-accent-light);
            color: var(--color-accent-dark);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            white-space: nowrap;
        }

        /* Indicator Cards */
        .indicator-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .indicator-card {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 22px 18px;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
        }

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

        .indicator-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 12px;
            font-size: 1.2rem;
            flex-shrink: 0;
        }

        .indicator-icon.highlight {
            background: var(--color-highlight-light);
            color: var(--color-highlight);
        }

        .indicator-icon.accent {
            background: var(--color-accent-light);
            color: var(--color-accent-dark);
        }

        .indicator-icon.primary {
            background: var(--color-dark-light);
            color: var(--color-primary);
        }

        .indicator-card h3 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 6px;
            letter-spacing: 0.01em;
        }

        .indicator-card p {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            line-height: 1.7;
        }

        /* Trend Charts */
        .charts-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

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

        .chart-card-header {
            padding: 16px 20px;
            border-bottom: 1px solid var(--color-border);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
        }

        .chart-card-header h3 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-primary);
        }

        .chart-card-header .chart-tag {
            font-size: 0.7rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: var(--radius-badge);
            background: var(--color-highlight-light);
            color: var(--color-highlight);
        }

        .chart-card-body {
            padding: 16px 20px 20px;
        }

        .chart-placeholder {
            width: 100%;
            aspect-ratio: 16 / 9;
            border-radius: 8px;
            overflow: hidden;
            background: var(--color-bg);
            position: relative;
        }

        .chart-placeholder img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 8px;
        }

        .chart-note {
            font-size: 0.75rem;
            color: var(--color-text-muted);
            margin-top: 10px;
            text-align: center;
        }

        /* CTA Section */
        .cta-section {
            background: var(--color-dark);
            padding: 56px 0;
        }

        .cta-inner {
            max-width: 680px;
            margin: 0 auto;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-white);
            line-height: 1.3;
            margin-bottom: 10px;
            letter-spacing: 0.01em;
        }

        .cta-section p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 24px;
            line-height: 1.7;
        }

        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 420px;
            margin: 0 auto;
            flex-wrap: wrap;
        }

        .cta-form input[type="email"],
        .cta-form input[type="text"] {
            flex: 1;
            min-width: 200px;
            padding: 12px 16px;
            border-radius: var(--radius-btn);
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: var(--color-white);
            font-size: 0.85rem;
            transition: var(--transition);
        }

        .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, 0.12);
            outline: none;
        }

        .cta-form button {
            background: var(--color-accent);
            color: var(--color-primary);
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.85rem;
            white-space: nowrap;
            transition: var(--transition);
        }

        .cta-form button:hover {
            background: var(--color-accent-dark);
        }

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

        .cta-trust span {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.5);
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .cta-trust .trust-dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--color-highlight);
        }

        /* Chip Navigation */
        .chips-row {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .chip-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 20px;
            border-radius: var(--radius-pill);
            background: var(--color-white);
            border: 1px solid var(--color-border);
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--color-text);
            transition: var(--transition);
            white-space: nowrap;
        }

        .chip-link:hover {
            border-color: var(--color-highlight);
            color: var(--color-highlight);
            box-shadow: var(--shadow-card);
        }

        .chip-link.active {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: var(--color-white);
        }

        /* FAQ */
        .faq-list {
            max-width: 720px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--color-highlight);
        }

        .faq-item summary {
            padding: 16px 20px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-primary);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: var(--transition);
            letter-spacing: 0.01em;
        }

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

        .faq-item summary::after {
            content: '+';
            font-size: 1.2rem;
            font-weight: 400;
            color: var(--color-text-muted);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-item[open] summary::after {
            content: '−';
            color: var(--color-highlight);
        }

        .faq-item summary:hover {
            color: var(--color-highlight);
            background: var(--color-highlight-light);
        }

        .faq-answer {
            padding: 0 20px 16px;
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.8;
        }

        /* Footer */
        .site-footer {
            background: var(--color-dark);
            padding: 56px 0 0;
            margin-top: auto;
        }

        .site-footer .container:first-child {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 32px;
        }

        .footer-brand .logo {
            color: var(--color-white);
            margin-bottom: 12px;
            font-size: 1.1rem;
        }

        .footer-brand .logo:hover {
            color: var(--color-white);
        }

        .footer-brand p {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 0.85rem;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

        .footer-col a {
            display: block;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.55);
            padding: 5px 0;
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: var(--color-highlight);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 18px 0;
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.45);
        }

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

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

        .footer-bottom .sep {
            color: rgba(255, 255, 255, 0.25);
        }

        /* Responsive */
        @media (max-width: 991px) {
            .data-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .indicator-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .charts-grid {
                grid-template-columns: 1fr;
            }
            .site-footer .container:first-child {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 767px) {
            .site-header .container {
                height: 60px;
            }
            .main-nav {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-nav {
                top: 60px;
            }
            .category-header {
                padding: 24px 0 20px;
            }
            .category-header h1 {
                font-size: 1.4rem;
            }
            .section {
                padding: 40px 0;
            }
            .data-cards-grid {
                grid-template-columns: 1fr;
            }
            .indicator-grid {
                grid-template-columns: 1fr;
            }
            .section-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-form button {
                width: 100%;
            }
            .site-footer .container:first-child {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                justify-content: center;
                text-align: center;
            }
        }

        @media (max-width: 575px) {
            .container {
                padding: 0 16px;
            }
            .data-card {
                padding: 16px;
            }
            .data-card-matchup {
                font-size: 1rem;
            }
            .odds-item {
                min-width: 60px;
                padding: 6px 8px;
            }
            .odds-value {
                font-size: 0.9rem;
            }
            .chips-row {
                gap: 6px;
            }
            .chip-link {
                padding: 6px 14px;
                font-size: 0.75rem;
            }
            .update-stamp-bar {
                padding: 12px 16px;
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        @media (min-width: 1200px) {
            .container {
                max-width: 1280px;
            }
        }

/* roulang page: category5 */
:root {
            --color-primary: #2A2D3E;
            --color-accent: #F0A020;
            --color-highlight: #2EC4B6;
            --color-bg: #F7F7FA;
            --color-dark: #1B1D2A;
            --color-text: #1A1C26;
            --color-text-muted: #5A5E6E;
            --color-border: #E3E4EB;
            --color-white: #FFFFFF;
            --color-accent-dark: #D98A12;
            --color-highlight-light: rgba(46, 196, 182, 0.1);
            --color-accent-light: rgba(240, 160, 32, 0.1);
            --radius-card: 12px;
            --radius-btn: 10px;
            --radius-pill: 22px;
            --radius-badge: 6px;
            --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 8px 24px rgba(0, 0, 0, 0.08);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --max-container: 1200px;
            --section-padding: 88px 0;
            --transition: all 0.25s ease;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-family);
            font-size: 0.9375rem;
            font-weight: 400;
            line-height: 1.85;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--color-text);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--color-highlight);
        }
        button,
        input,
        textarea,
        select {
            font-family: var(--font-family);
            font-size: inherit;
            outline: none;
            border: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        .container {
            max-width: var(--max-container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.02);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-primary);
            flex-shrink: 0;
            letter-spacing: 0.02em;
        }
        .logo .logo-badge {
            width: 32px;
            height: 32px;
            background: var(--color-primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 0.875rem;
            font-weight: 700;
            flex-shrink: 0;
        }
        .logo:hover {
            color: var(--color-primary);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }
        .main-nav a {
            padding: 8px 14px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-text-muted);
            border-radius: 8px;
            white-space: nowrap;
            transition: var(--transition);
            letter-spacing: 0.01em;
        }
        .main-nav a:hover {
            color: var(--color-highlight);
            background: var(--color-highlight-light);
        }
        .main-nav a.active {
            color: var(--color-primary);
            background: rgba(42, 45, 62, 0.06);
            font-weight: 600;
        }
        .nav-cta {
            background: var(--color-accent);
            color: var(--color-primary);
            padding: 9px 18px;
            border-radius: var(--radius-btn);
            font-size: 0.875rem;
            font-weight: 600;
            white-space: nowrap;
            transition: var(--transition);
            flex-shrink: 0;
            letter-spacing: 0.01em;
        }
        .nav-cta:hover {
            background: var(--color-accent-dark);
            color: var(--color-primary);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            flex-shrink: 0;
        }
        .nav-toggle span {
            width: 20px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: var(--transition);
        }
        .nav-toggle[aria-expanded="true"] span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle[aria-expanded="true"] span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            gap: 4px;
            padding: 12px 24px 20px;
            background: var(--color-white);
            border-top: 1px solid var(--color-border);
            position: absolute;
            top: 68px;
            left: 0;
            right: 0;
            z-index: 99;
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.06);
        }
        .mobile-nav.open {
            display: flex;
        }
        .mobile-nav a {
            padding: 12px 0;
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--color-text);
            border-bottom: 1px solid var(--color-border);
        }
        .mobile-nav a:last-child {
            border-bottom: none;
        }
        .mobile-nav a.active {
            color: var(--color-highlight);
            font-weight: 600;
        }
        main {
            flex: 1;
        }
        .category-hero {
            background: var(--color-dark);
            padding: 56px 0 48px;
            color: var(--color-white);
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse 60% 55% at 75% 40%, rgba(240, 160, 32, 0.12), transparent 65%), radial-gradient(ellipse 45% 45% at 20% 70%, rgba(46, 196, 182, 0.08), transparent 60%);
            pointer-events: none;
        }
        .category-hero .container {
            position: relative;
            z-index: 1;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
        }
        .breadcrumb a:hover {
            color: var(--color-accent);
        }
        .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.4);
        }
        .breadcrumb .current {
            color: var(--color-accent);
        }
        .category-hero h1 {
            font-size: 2rem;
            font-weight: 700;
            margin: 0 0 12px;
            line-height: 1.25;
            letter-spacing: 0.01em;
        }
        .category-hero .subtitle {
            font-size: 0.9375rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 720px;
            line-height: 1.8;
            margin: 0;
        }
        .section {
            padding: 64px 0;
        }
        .section-alt {
            padding: 64px 0;
            background: var(--color-white);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .section-header {
            margin-bottom: 36px;
        }
        .section-header .eyebrow {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--color-highlight);
            background: var(--color-highlight-light);
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            margin-bottom: 10px;
            letter-spacing: 0.06em;
            text-transform: uppercase;
        }
        .section-header h2 {
            font-size: 1.55rem;
            font-weight: 700;
            color: var(--color-primary);
            margin: 0 0 8px;
            line-height: 1.3;
        }
        .section-header p {
            font-size: 0.9375rem;
            color: var(--color-text-muted);
            margin: 0;
            max-width: 680px;
            line-height: 1.8;
        }
        .rules-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .rule-card {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .rule-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-highlight);
            transform: translateY(-2px);
        }
        .rule-card .card-icon {
            width: 44px;
            height: 44px;
            background: var(--color-highlight-light);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            font-size: 1.25rem;
            color: var(--color-highlight);
            font-weight: 700;
            flex-shrink: 0;
        }
        .rule-card h3 {
            font-size: 1.0625rem;
            font-weight: 600;
            color: var(--color-primary);
            margin: 0 0 8px;
            line-height: 1.4;
        }
        .rule-card p {
            font-size: 0.875rem;
            color: var(--color-text-muted);
            margin: 0 0 16px;
            line-height: 1.75;
            flex: 1;
        }
        .rule-card .tag {
            align-self: flex-start;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--color-primary);
            background: rgba(42, 45, 62, 0.06);
            padding: 3px 10px;
            border-radius: var(--radius-badge);
            letter-spacing: 0.02em;
        }
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 32px;
        }
        .filter-pill {
            padding: 8px 18px;
            font-size: 0.8125rem;
            font-weight: 500;
            color: var(--color-text-muted);
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-pill);
            transition: var(--transition);
            letter-spacing: 0.01em;
            cursor: pointer;
        }
        .filter-pill:hover {
            border-color: var(--color-highlight);
            color: var(--color-highlight);
        }
        .filter-pill.active {
            background: var(--color-primary);
            color: var(--color-white);
            border-color: var(--color-primary);
        }
        .glossary-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        .glossary-item {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .glossary-item:hover {
            border-color: var(--color-highlight);
            box-shadow: var(--shadow-card-hover);
        }
        .glossary-item h3 {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--color-primary);
            margin: 0 0 6px;
            line-height: 1.4;
        }
        .glossary-item p {
            font-size: 0.875rem;
            color: var(--color-text-muted);
            margin: 0;
            line-height: 1.75;
        }
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .tip-card {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            position: relative;
            padding-left: 48px;
        }
        .tip-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-accent);
        }
        .tip-card .tip-num {
            position: absolute;
            left: 16px;
            top: 20px;
            width: 26px;
            height: 26px;
            background: var(--color-accent-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--color-accent-dark);
        }
        .tip-card h3 {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--color-primary);
            margin: 0 0 6px;
            line-height: 1.4;
        }
        .tip-card p {
            font-size: 0.8125rem;
            color: var(--color-text-muted);
            margin: 0;
            line-height: 1.7;
        }
        .related-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .related-chip {
            padding: 10px 20px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-text);
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-pill);
            transition: var(--transition);
            letter-spacing: 0.01em;
        }
        .related-chip:hover {
            border-color: var(--color-highlight);
            color: var(--color-highlight);
            box-shadow: var(--shadow-card);
        }
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--color-border);
        }
        .faq-item summary {
            padding: 18px 24px;
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--color-primary);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            user-select: none;
            line-height: 1.5;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '+';
            font-size: 1.25rem;
            font-weight: 400;
            color: var(--color-text-muted);
            flex-shrink: 0;
            transition: var(--transition);
            line-height: 1;
        }
        .faq-item[open] summary::after {
            content: '−';
            color: var(--color-highlight);
        }
        .faq-item .faq-answer {
            padding: 0 24px 20px;
            font-size: 0.875rem;
            color: var(--color-text-muted);
            line-height: 1.8;
        }
        .faq-item .faq-answer p {
            margin: 0;
        }
        .site-footer {
            background: var(--color-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 24px;
            margin-top: 0;
        }
        .site-footer .container:first-child {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo {
            color: var(--color-white);
            margin-bottom: 14px;
        }
        .footer-brand .logo .logo-badge {
            background: var(--color-white);
            color: var(--color-primary);
        }
        .footer-brand p {
            font-size: 0.8125rem;
            line-height: 1.8;
            margin: 0;
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--color-white);
            margin: 0 0 14px;
        }
        .footer-col a {
            display: block;
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.65);
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            padding-top: 20px;
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.75rem;
        }
        .footer-bottom a:hover {
            color: var(--color-accent);
        }
        .footer-bottom .sep {
            color: rgba(255, 255, 255, 0.3);
        }
        @media (max-width: 1024px) {
            .rules-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .tips-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .site-footer .container:first-child {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-cta {
                display: none;
            }
            .category-hero {
                padding: 40px 0 36px;
            }
            .category-hero h1 {
                font-size: 1.5rem;
            }
            .section {
                padding: 48px 0;
            }
            .section-alt {
                padding: 48px 0;
            }
            .rules-grid {
                grid-template-columns: 1fr;
            }
            .glossary-list {
                grid-template-columns: 1fr;
            }
            .tips-grid {
                grid-template-columns: 1fr;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
            .site-footer .container:first-child {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 576px) {
            .container {
                padding: 0 16px;
            }
            .section-header h2 {
                font-size: 1.2rem;
            }
            .category-hero h1 {
                font-size: 1.35rem;
            }
            .filter-bar {
                gap: 6px;
            }
            .filter-pill {
                padding: 6px 14px;
                font-size: 0.75rem;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #2A2D3E;
            --color-accent: #F0A020;
            --color-highlight: #2EC4B6;
            --color-bg: #F7F7FA;
            --color-dark: #1B1D2A;
            --color-text: #1A1C26;
            --color-text-muted: #5A5E6E;
            --color-border: #E3E4EB;
            --color-white: #FFFFFF;
            --color-accent-dark: #D98A12;
            --color-highlight-light: rgba(46, 196, 182, 0.1);
            --color-accent-light: rgba(240, 160, 32, 0.1);
            --radius-card: 12px;
            --radius-btn: 10px;
            --radius-pill: 22px;
            --radius-badge: 6px;
            --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 8px 24px rgba(0, 0, 0, 0.08);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --max-container: 1200px;
            --section-padding: 72px 0;
            --transition: all 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family);
            font-size: 0.9375rem;
            font-weight: 400;
            line-height: 1.85;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

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

        button,
        input,
        textarea,
        select {
            font-family: var(--font-family);
            font-size: inherit;
            outline: none;
            border: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

        .container {
            max-width: var(--max-container);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header / Nav */
        .site-header {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.02);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 24px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-primary);
            flex-shrink: 0;
            letter-spacing: 0.02em;
        }

        .logo .logo-badge {
            width: 32px;
            height: 32px;
            background: var(--color-primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 0.875rem;
            font-weight: 700;
            flex-shrink: 0;
        }

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

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }

        .main-nav a {
            padding: 8px 14px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-text-muted);
            border-radius: 8px;
            white-space: nowrap;
            transition: var(--transition);
            letter-spacing: 0.01em;
        }

        .main-nav a:hover {
            color: var(--color-highlight);
            background: var(--color-highlight-light);
        }

        .main-nav a.active {
            color: var(--color-primary);
            background: rgba(42, 45, 62, 0.06);
            font-weight: 600;
        }

        .nav-cta {
            background: var(--color-accent);
            color: var(--color-primary);
            padding: 9px 18px;
            border-radius: var(--radius-btn);
            font-size: 0.875rem;
            font-weight: 600;
            white-space: nowrap;
            transition: var(--transition);
            flex-shrink: 0;
            letter-spacing: 0.01em;
        }

        .nav-cta:hover {
            background: var(--color-accent-dark);
            color: var(--color-primary);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            flex-shrink: 0;
        }

        .nav-toggle span {
            width: 20px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: var(--transition);
        }

        .nav-toggle[aria-expanded="true"] span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle[aria-expanded="true"] span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-nav {
            display: none;
            flex-direction: column;
            gap: 4px;
            padding: 12px 24px 20px;
            background: var(--color-white);
            border-top: 1px solid var(--color-border);
            position: absolute;
            top: 68px;
            left: 0;
            right: 0;
            z-index: 99;
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.06);
        }

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

        .mobile-nav a {
            padding: 10px 12px;
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--color-text);
            border-radius: 8px;
        }

        .mobile-nav a:hover {
            background: var(--color-highlight-light);
            color: var(--color-highlight);
        }

        .mobile-nav a.active {
            background: rgba(42, 45, 62, 0.06);
            color: var(--color-primary);
            font-weight: 600;
        }

        /* Breadcrumb */
        .breadcrumb-section {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            padding: 14px 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8125rem;
            color: var(--color-text-muted);
        }

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

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

        .breadcrumb .sep {
            color: var(--color-border);
            user-select: none;
        }

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

        /* Category Hero */
        .category-hero {
            background: var(--color-primary);
            padding: 48px 0 40px;
            position: relative;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(46, 196, 182, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: 20%;
            width: 400px;
            height: 200px;
            background: radial-gradient(ellipse, rgba(240, 160, 32, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .category-hero .container {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: flex-end;
            gap: 32px;
            flex-wrap: wrap;
        }

        .category-hero h1 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-white);
            line-height: 1.3;
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }

        .category-hero .hero-sub {
            font-size: 0.9375rem;
            color: rgba(255, 255, 255, 0.72);
            max-width: 680px;
            line-height: 1.7;
        }

        .category-hero .hero-badge-group {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            margin-left: auto;
        }

        .hero-badge {
            padding: 6px 14px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-pill);
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.85);
            white-space: nowrap;
        }

        /* Section Common */
        .section {
            padding: var(--section-padding);
        }

        .section-alt {
            background: var(--color-white);
        }

        .section-header {
            margin-bottom: 36px;
        }

        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.3;
            letter-spacing: 0.01em;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .section-title::before {
            content: '';
            width: 4px;
            height: 24px;
            background: var(--color-accent);
            border-radius: 2px;
            flex-shrink: 0;
        }

        .section-desc {
            font-size: 0.9375rem;
            color: var(--color-text-muted);
            max-width: 720px;
            margin-top: 10px;
            line-height: 1.75;
        }

        /* Team Cards Grid */
        .team-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

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

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

        .team-card-image {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--color-primary);
        }

        .team-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .team-card:hover .team-card-image img {
            transform: scale(1.04);
        }

        .team-card-image .team-status {
            position: absolute;
            top: 12px;
            right: 12px;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(27, 29, 42, 0.75);
            color: var(--color-white);
            backdrop-filter: blur(4px);
        }

        .team-card-image .team-status.hot {
            background: var(--color-accent);
            color: var(--color-primary);
        }

        .team-card-image .team-status.cool {
            background: rgba(90, 94, 110, 0.75);
            color: var(--color-white);
        }

        .team-card-body {
            padding: 18px 18px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .team-card-name {
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .team-card-name .team-tag {
            font-size: 0.6875rem;
            font-weight: 500;
            padding: 2px 8px;
            background: var(--color-highlight-light);
            color: var(--color-highlight);
            border-radius: var(--radius-badge);
            white-space: nowrap;
        }

        .team-card-record {
            font-size: 0.8125rem;
            color: var(--color-text-muted);
            margin-bottom: 10px;
        }

        .team-card-stats {
            display: flex;
            gap: 16px;
            padding: 10px 0;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
            margin-bottom: 14px;
        }

        .team-stat-item {
            text-align: center;
            flex: 1;
        }

        .team-stat-value {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-primary);
        }

        .team-stat-label {
            font-size: 0.6875rem;
            color: var(--color-text-muted);
        }

        .team-card-actions {
            display: flex;
            gap: 10px;
            margin-top: auto;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 9px 18px;
            border-radius: var(--radius-btn);
            font-size: 0.875rem;
            font-weight: 600;
            transition: var(--transition);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--color-accent);
            color: var(--color-primary);
        }

        .btn-primary:hover {
            background: var(--color-accent-dark);
            color: var(--color-primary);
        }

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

        .btn-secondary:hover {
            background: rgba(42, 45, 62, 0.05);
            color: var(--color-primary);
        }

        .btn-sm {
            padding: 7px 14px;
            font-size: 0.8125rem;
        }

        .btn-link {
            color: var(--color-highlight);
            font-size: 0.8125rem;
            font-weight: 600;
            padding: 4px 0;
            position: relative;
        }

        .btn-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 1.5px;
            background: var(--color-highlight);
            transition: var(--transition);
        }

        .btn-link:hover {
            color: var(--color-highlight);
        }

        .btn-link:hover::after {
            width: 100%;
        }

        /* Ranking Bar */
        .ranking-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 20px;
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .ranking-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-highlight);
        }

        .ranking-position {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-primary);
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(42, 45, 62, 0.06);
            flex-shrink: 0;
        }

        .ranking-position.top1 {
            background: var(--color-accent-light);
            color: var(--color-accent-dark);
        }

        .ranking-position.top2 {
            background: rgba(46, 196, 182, 0.15);
            color: var(--color-highlight);
        }

        .ranking-position.top3 {
            background: rgba(240, 160, 32, 0.1);
            color: var(--color-accent-dark);
        }

        .ranking-info {
            flex: 1;
            min-width: 0;
        }

        .ranking-name {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--color-primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .ranking-name .trend-up {
            color: var(--color-highlight);
            font-size: 0.75rem;
        }

        .ranking-name .trend-down {
            color: #e05a5a;
            font-size: 0.75rem;
        }

        .ranking-meta {
            font-size: 0.75rem;
            color: var(--color-text-muted);
        }

        .ranking-score-bar {
            display: flex;
            align-items: center;
            gap: 12px;
            width: 240px;
            flex-shrink: 0;
        }

        .ranking-bar-track {
            flex: 1;
            height: 6px;
            background: rgba(42, 45, 62, 0.08);
            border-radius: 3px;
            overflow: hidden;
        }

        .ranking-bar-fill {
            height: 100%;
            background: var(--color-highlight);
            border-radius: 3px;
            transition: width 0.6s ease;
        }

        .ranking-bar-fill.accent {
            background: var(--color-accent);
        }

        .ranking-score {
            font-size: 0.9375rem;
            font-weight: 700;
            color: var(--color-primary);
            width: 44px;
            text-align: right;
            flex-shrink: 0;
        }

        /* Featured Team */
        .featured-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

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

        .featured-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-highlight);
        }

        .featured-image {
            aspect-ratio: 21/9;
            overflow: hidden;
            background: var(--color-primary);
        }

        .featured-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .featured-body {
            padding: 20px 24px 24px;
        }

        .featured-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .featured-title .highlight-tag {
            font-size: 0.6875rem;
            font-weight: 600;
            padding: 3px 10px;
            background: var(--color-accent-light);
            color: var(--color-accent-dark);
            border-radius: var(--radius-badge);
            white-space: nowrap;
        }

        .featured-desc {
            font-size: 0.875rem;
            color: var(--color-text-muted);
            line-height: 1.75;
            margin-bottom: 14px;
        }

        .featured-highlights {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            padding-top: 12px;
            border-top: 1px solid var(--color-border);
        }

        .featured-highlight-item {
            text-align: center;
        }

        .featured-highlight-value {
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--color-highlight);
        }

        .featured-highlight-label {
            font-size: 0.6875rem;
            color: var(--color-text-muted);
        }

        /* Compare CTA */
        .compare-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-dark) 100%);
            border-radius: var(--radius-card);
            padding: 40px 44px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }

        .compare-section::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -30px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(240, 160, 32, 0.2) 0%, transparent 70%);
            pointer-events: none;
        }

        .compare-section h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-white);
            margin-bottom: 8px;
            letter-spacing: 0.01em;
        }

        .compare-section p {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.68);
            max-width: 520px;
            line-height: 1.7;
        }

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

        /* Related Categories */
        .related-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 20px;
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-pill);
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-text);
            transition: var(--transition);
        }

        .chip:hover {
            border-color: var(--color-highlight);
            color: var(--color-highlight);
            background: var(--color-highlight-light);
        }

        .chip .chip-arrow {
            font-size: 0.75rem;
            color: var(--color-text-muted);
            transition: var(--transition);
        }

        .chip:hover .chip-arrow {
            color: var(--color-highlight);
            transform: translateX(3px);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
        }

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

        .faq-item:hover {
            border-color: var(--color-highlight);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--color-primary);
            user-select: none;
            transition: var(--transition);
        }

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

        .faq-icon {
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(42, 45, 62, 0.06);
            font-size: 1rem;
            color: var(--color-text-muted);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-item.open .faq-icon {
            background: var(--color-highlight-light);
            color: var(--color-highlight);
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 20px 18px;
            font-size: 0.875rem;
            color: var(--color-text-muted);
            line-height: 1.75;
            display: none;
        }

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

        /* Footer */
        .site-footer {
            background: var(--color-dark);
            color: rgba(255, 255, 255, 0.72);
            padding: 48px 0 24px;
            margin-top: auto;
        }

        .site-footer .container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
        }

        .footer-brand .logo {
            color: var(--color-white);
            margin-bottom: 14px;
        }

        .footer-brand .logo .logo-badge {
            background: var(--color-accent);
            color: var(--color-primary);
        }

        .footer-brand p {
            font-size: 0.8125rem;
            line-height: 1.75;
            max-width: 280px;
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-col h4 {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--color-white);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .footer-col a {
            display: block;
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.55);
            padding: 5px 0;
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: var(--color-highlight);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 32px;
            padding-top: 20px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.42);
            grid-column: 1 / -1;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }

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

        .footer-bottom .sep {
            color: rgba(255, 255, 255, 0.2);
            user-select: none;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .team-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .ranking-score-bar {
                width: 160px;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-cta {
                display: none;
            }
            .site-header .container {
                height: 60px;
            }
            .mobile-nav {
                top: 60px;
            }
            .category-hero {
                padding: 32px 0 28px;
            }
            .category-hero h1 {
                font-size: 1.5rem;
            }
            .category-hero .hero-badge-group {
                margin-left: 0;
                width: 100%;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.375rem;
            }
            .team-grid {
                grid-template-columns: 1fr;
            }
            .ranking-score-bar {
                display: none;
            }
            .compare-section {
                padding: 28px 24px;
                flex-direction: column;
                text-align: center;
                align-items: center;
            }
            .compare-section p {
                max-width: 100%;
            }
            .site-footer .container {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 576px) {
            .container {
                padding: 0 16px;
            }
            .site-footer .container {
                grid-template-columns: 1fr;
            }
            .footer-brand {
                grid-column: auto;
            }
            .team-card-stats {
                flex-wrap: wrap;
                gap: 8px;
            }
            .team-stat-item {
                flex: 0 0 calc(50% - 4px);
            }
            .ranking-item {
                padding: 10px 14px;
                gap: 10px;
            }
            .ranking-position {
                width: 30px;
                height: 30px;
                font-size: 1rem;
            }
            .featured-body {
                padding: 16px 18px 18px;
            }
            .compare-section h2 {
                font-size: 1.25rem;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
            .footer-bottom .sep {
                display: none;
            }
        }