/* roulang page: index */
:root {
            --primary: #1f6fe5;
            --primary-deep: #1a56c4;
            --primary-soft: #e8f0fe;
            --accent: #f97316;
            --accent-deep: #dc5e0a;
            --accent-soft: #fff1e6;
            --ink: #1e293b;
            --ink-light: #334155;
            --muted: #64748b;
            --faint: #94a3b8;
            --bg: #f5f7fb;
            --card: #ffffff;
            --border: #e2e8f0;
            --border-light: rgba(226, 232, 240, 0.8);
            --shadow-sm: 0 2px 8px rgba(30, 41, 59, 0.04);
            --shadow-md: 0 4px 16px rgba(30, 41, 59, 0.06);
            --shadow-lg: 0 12px 32px rgba(30, 41, 59, 0.1);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --font-base: 16px;
            --line-base: 1.75;
            --max-width: 1200px;
            --header-height: 64px;
            --transition: all 0.2s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: var(--font-base);
            line-height: var(--line-base);
            color: var(--ink-light);
            background: var(--bg);
            min-height: 100vh;
            padding-bottom: 60px;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        /* Header & Navbar */
        .site-header {
            background: var(--card);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 200;
            box-shadow: var(--shadow-sm);
        }
        .header-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: var(--header-height);
            gap: 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--ink);
            letter-spacing: 0.5px;
            white-space: nowrap;
            transition: var(--transition);
        }
        .logo:hover {
            color: var(--primary);
            text-decoration: none;
        }
        .logo-mark {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 900;
            flex-shrink: 0;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }
        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--ink-light);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            transition: var(--transition);
            position: relative;
        }
        .main-nav a:hover {
            color: var(--primary);
            background: var(--primary-soft);
            text-decoration: none;
        }
        .main-nav a.active {
            color: var(--primary);
            font-weight: 700;
        }
        .main-nav a.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 4px;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 8px 10px;
            cursor: pointer;
            transition: var(--transition);
        }
        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--ink);
            border-radius: 2px;
            transition: var(--transition);
        }
        .hamburger:hover {
            background: var(--primary-soft);
            border-color: var(--primary);
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 600;
            cursor: pointer;
            border: 1px solid transparent;
            transition: var(--transition);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.3px;
            min-height: 40px;
        }
        .btn:hover {
            text-decoration: none;
        }
        .btn:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn:active {
            transform: translateY(1px);
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--accent-deep);
            color: #fff;
            box-shadow: 0 4px 14px rgba(249, 115, 22, 0.35);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(31, 111, 229, 0.2);
        }
        .btn-sm {
            padding: 7px 14px;
            font-size: 0.8rem;
            min-height: 32px;
            border-radius: 6px;
        }
        .btn-lg {
            padding: 13px 26px;
            font-size: 1rem;
            min-height: 48px;
            border-radius: 10px;
        }

        /* Announcement strip */
        .announcement-strip {
            background: #fafbfd;
            border-bottom: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 8px 0;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .announcement-strip::-webkit-scrollbar {
            display: none;
        }
        .announcement-label {
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--accent-deep);
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .announcement-label::before {
            content: "●";
            font-size: 8px;
            color: var(--accent);
            animation: pulse-dot 1.8s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }
        .chip {
            display: inline-flex;
            align-items: center;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--ink-light);
            background: transparent;
            border: 1px solid var(--border);
            white-space: nowrap;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }
        .chip:hover {
            color: var(--primary);
            border-color: var(--primary);
            background: var(--primary-soft);
            text-decoration: none;
        }
        .chip-accent {
            color: var(--accent-deep);
            border-color: var(--accent);
            background: var(--accent-soft);
        }
        .chip-accent:hover {
            color: #fff;
            background: var(--accent);
            border-color: var(--accent);
        }

        /* Mobile nav drawer */
        .mobile-nav {
            display: none;
            background: var(--card);
            border-top: 1px solid var(--border);
            padding: 16px 20px;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-nav.open {
            display: flex;
        }
        .mobile-nav a {
            padding: 12px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--ink-light);
        }
        .mobile-nav a:hover {
            background: var(--primary-soft);
            color: var(--primary);
            text-decoration: none;
        }
        .mobile-nav a.active {
            color: var(--primary);
            font-weight: 700;
            background: var(--primary-soft);
        }
        .mobile-nav .chip-group {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            padding: 12px 0 4px;
        }

        /* Hero */
        .hero {
            position: relative;
            background: linear-gradient(120deg, #f0f4fc 0%, #e6eefb 100%);
            border-radius: 0 0 var(--radius-xl) var(--radius-xl);
            overflow: hidden;
            padding: 60px 0 70px;
            margin-bottom: 20px;
        }
        .hero::before {
            content: "";
            position: absolute;
            top: 0;
            right: 0;
            width: 55%;
            height: 100%;
            background: url('/assets/images/56ec7adde81dade7.webp') center/cover no-repeat;
            opacity: 0.35;
            mask-image: linear-gradient(to right, transparent 0%, #000 60%);
            -webkit-mask-image: linear-gradient(to right, transparent 0%, #000 60%);
        }
        .hero-inner {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }
        .hero-content h1 {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--ink);
            letter-spacing: -0.5px;
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .hero-content p {
            font-size: 1.05rem;
            color: var(--ink-light);
            line-height: 1.8;
            max-width: 520px;
            margin-bottom: 24px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 20px;
        }
        .hero-stats {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }
        .hero-stat {
            display: flex;
            flex-direction: column;
        }
        .hero-stat strong {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
        }
        .hero-stat span {
            font-size: 0.8rem;
            color: var(--muted);
        }
        .hero-visual {
            background: var(--card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            overflow: hidden;
            min-height: 280px;
            position: relative;
            display: flex;
            align-items: flex-end;
        }
        .hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }
        .hero-visual-overlay {
            position: relative;
            z-index: 2;
            padding: 20px;
            width: 100%;
            background: linear-gradient(to top, rgba(30, 41, 59, 0.85) 0%, rgba(30, 41, 59, 0) 100%);
            color: #fff;
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 12px;
        }
        .hero-visual-overlay .label {
            font-size: 0.8rem;
            font-weight: 600;
            opacity: 0.85;
        }
        .hero-visual-overlay .big {
            font-size: 1.6rem;
            font-weight: 800;
        }

        /* Section common */
        .section {
            padding: 46px 0;
        }
        .section-alt {
            background: #f8fafd;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .section-head {
            margin-bottom: 30px;
        }
        .section-head h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--ink);
            letter-spacing: -0.3px;
            max-width: 700px;
            line-height: 1.4;
        }
        .section-head p {
            font-size: 0.95rem;
            color: var(--muted);
            margin-top: 8px;
            max-width: 650px;
        }

        /* Three pillar cards */
        .pillar-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .pillar-card {
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 26px 22px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .pillar-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--primary);
        }
        .pillar-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .pillar-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--ink);
        }
        .pillar-card p {
            font-size: 0.88rem;
            color: var(--muted);
            line-height: 1.7;
        }

        /* Scene section */
        .scene-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .scene-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            aspect-ratio: 4/3;
        }
        .scene-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .scene-text h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 12px;
        }
        .scene-text p {
            font-size: 0.95rem;
            color: var(--ink-light);
            line-height: 1.8;
            margin-bottom: 14px;
        }
        .scene-steps {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-top: 10px;
        }
        .scene-steps li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--ink-light);
        }
        .scene-steps li::before {
            content: "›";
            font-weight: 800;
            color: var(--accent);
            font-size: 1.2rem;
            line-height: 1.4;
        }

        /* Brand intro */
        .brand-intro {
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 34px 30px;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .brand-intro h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--ink);
        }
        .brand-intro p {
            font-size: 0.95rem;
            color: var(--ink-light);
            line-height: 1.85;
        }

        /* Social proof / data bars */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .stat-card {
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 22px 18px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .stat-card strong {
            display: block;
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -1px;
        }
        .stat-card span {
            font-size: 0.82rem;
            color: var(--muted);
            margin-top: 4px;
            display: block;
        }

        /* Comparison */
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .compare-card {
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 26px 24px;
            box-shadow: var(--shadow-sm);
        }
        .compare-card.featured {
            border-color: var(--primary);
            box-shadow: 0 6px 20px rgba(31, 111, 229, 0.12);
            position: relative;
        }
        .compare-card.featured::before {
            content: "球速体育优势";
            position: absolute;
            top: -12px;
            left: 24px;
            background: var(--primary);
            color: #fff;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 20px;
        }
        .compare-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 14px;
        }
        .compare-card ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .compare-card ul li {
            font-size: 0.88rem;
            color: var(--ink-light);
            padding-left: 20px;
            position: relative;
        }
        .compare-card ul li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: 700;
        }
        .compare-card.muted-card ul li::before {
            content: "×";
            color: var(--faint);
        }

        /* News */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .news-item {
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px 22px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            gap: 18px;
            align-items: flex-start;
        }
        .news-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
            border-color: var(--primary-soft);
        }
        .news-date {
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
            padding-top: 2px;
            min-width: 68px;
        }
        .news-body h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 4px;
        }
        .news-body p {
            font-size: 0.85rem;
            color: var(--muted);
            line-height: 1.7;
            margin-bottom: 8px;
        }
        .news-body .read-more {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .news-body .read-more:hover {
            color: var(--accent);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        /* Deep articles */
        .deep-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }
        .deep-card {
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .deep-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .deep-card img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
        }
        .deep-card .deep-body {
            padding: 18px 16px;
        }
        .deep-card h4 {
            font-size: 0.98rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 6px;
        }
        .deep-card p {
            font-size: 0.82rem;
            color: var(--muted);
            line-height: 1.65;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 850px;
        }
        .faq-item {
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-soft);
        }
        .faq-question {
            width: 100%;
            background: transparent;
            border: none;
            padding: 18px 20px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--ink);
            text-align: left;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question::after {
            content: "+";
            font-size: 1.3rem;
            color: var(--primary);
            font-weight: 400;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question::after {
            content: "−";
            color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 20px;
        }
        .faq-item.active .faq-answer {
            max-height: 220px;
            padding: 0 20px 18px;
        }
        .faq-answer p {
            font-size: 0.88rem;
            color: var(--muted);
            line-height: 1.75;
        }

        /* Category entry */
        .category-entry-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 14px;
        }
        .category-entry {
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px 16px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .category-entry:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--primary);
            text-decoration: none;
        }
        .category-entry h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--ink);
        }
        .category-entry p {
            font-size: 0.8rem;
            color: var(--muted);
            line-height: 1.6;
        }
        .category-entry .arrow {
            display: inline-flex;
            align-self: flex-start;
            margin-top: 6px;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--primary);
        }

        /* Guarantee bar */
        .guarantee-bar {
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
        }
        .guarantee-bar .text {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--ink);
            flex: 1;
            min-width: 200px;
        }
        .guarantee-tags {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .guarantee-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 5px 12px;
            border-radius: 20px;
            white-space: nowrap;
        }
        .guarantee-tag::before {
            content: "✓";
            font-weight: 800;
        }

        /* CTA section */
        .cta-section {
            background: linear-gradient(135deg, #e8f0fe 0%, #dbeafe 100%);
            border-radius: var(--radius-lg);
            padding: 44px 34px;
            text-align: center;
            box-shadow: var(--shadow-sm);
        }
        .cta-section h2 {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--ink);
            margin-bottom: 10px;
        }
        .cta-section p {
            font-size: 0.95rem;
            color: var(--ink-light);
            margin-bottom: 20px;
        }

        /* Fixed bottom bar */
        .fixed-bottom-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 300;
            background: #ffffff;
            border-top: 1px solid var(--border-light);
            box-shadow: 0 -4px 16px rgba(30, 41, 59, 0.08);
            padding: 10px 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            min-height: 56px;
            transition: var(--transition);
        }
        .fixed-bottom-bar .text {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--ink);
            flex: 1;
        }
        .fixed-bottom-bar .close {
            background: transparent;
            border: none;
            font-size: 1.2rem;
            color: var(--muted);
            cursor: pointer;
            padding: 4px;
            line-height: 1;
            transition: var(--transition);
        }
        .fixed-bottom-bar .close:hover {
            color: var(--accent);
        }

        /* Footer */
        .site-footer {
            background: var(--ink);
            color: #cbd5e1;
            margin-top: 50px;
            padding: 50px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 30px;
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 1.3rem;
        }
        .footer-brand .logo:hover {
            color: #e2e8f0;
        }
        .footer-brand p {
            font-size: 0.85rem;
            color: #94a3b8;
            line-height: 1.7;
            margin-top: 12px;
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .footer-col a {
            display: block;
            color: #94a3b8;
            font-size: 0.85rem;
            padding: 5px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: #fff;
            text-decoration: none;
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
            font-size: 0.78rem;
            color: #94a3b8;
        }
        .footer-bottom a {
            color: #94a3b8;
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero {
                padding: 40px 0 50px;
            }
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .hero-content h1 {
                font-size: 2rem;
            }
            .hero-visual {
                min-height: 220px;
            }
            .pillar-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .deep-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-entry-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .nav-cta .btn {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .header-main {
                min-height: 60px;
            }
            .hero {
                padding: 30px 0 40px;
                border-radius: 0 0 var(--radius-lg) var(--radius-lg);
            }
            .hero::before {
                width: 100%;
                opacity: 0.15;
                mask-image: linear-gradient(to bottom, #000 0%, transparent 70%);
                -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 70%);
            }
            .hero-content h1 {
                font-size: 1.7rem;
            }
            .hero-actions {
                flex-direction: column;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .section {
                padding: 34px 0;
            }
            .section-head h2 {
                font-size: 1.35rem;
            }
            .pillar-grid {
                grid-template-columns: 1fr;
            }
            .scene-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .compare-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .deep-grid {
                grid-template-columns: 1fr;
            }
            .category-entry-grid {
                grid-template-columns: 1fr;
            }
            .news-item {
                flex-direction: column;
                gap: 6px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .fixed-bottom-bar {
                flex-direction: column;
                align-items: stretch;
                gap: 8px;
                padding: 10px 14px;
            }
            .fixed-bottom-bar .btn {
                width: 100%;
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 1.5rem;
            }
            .container {
                padding: 0 14px;
            }
            .section-head h2 {
                font-size: 1.2rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stat-card strong {
                font-size: 1.5rem;
            }
            .btn-lg {
                font-size: 0.9rem;
                padding: 11px 20px;
            }
            .announcement-strip {
                padding: 6px 0;
            }
            .chip {
                font-size: 0.72rem;
                padding: 3px 10px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1f6fe5;
            --primary-deep: #1a56c4;
            --primary-soft: #e8f0fe;
            --accent: #f97316;
            --accent-deep: #dc5e0a;
            --accent-soft: #fff1e6;
            --ink: #1e293b;
            --ink-light: #334155;
            --muted: #64748b;
            --faint: #94a3b8;
            --bg: #f5f7fb;
            --card: #ffffff;
            --border: #e2e8f0;
            --border-light: rgba(226, 232, 240, 0.8);
            --shadow-sm: 0 2px 8px rgba(30, 41, 59, 0.04);
            --shadow-md: 0 4px 16px rgba(30, 41, 59, 0.06);
            --shadow-lg: 0 12px 32px rgba(30, 41, 59, 0.1);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --font-base: 16px;
            --line-base: 1.75;
            --max-width: 1200px;
            --header-height: 64px;
            --transition: all 0.2s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: var(--font-base);
            line-height: var(--line-base);
            color: var(--ink-light);
            background: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            display: block;
            height: auto;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        /* Header & Nav */
        .site-header {
            background: var(--card);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 200;
            box-shadow: var(--shadow-sm);
        }
        .header-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: var(--header-height);
            gap: 24px;
            flex-wrap: wrap;
            padding: 8px 0;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--ink);
            letter-spacing: 0.5px;
            white-space: nowrap;
            transition: var(--transition);
        }
        .logo:hover {
            color: var(--primary);
            text-decoration: none;
        }
        .logo-mark {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 900;
            flex-shrink: 0;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }
        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--ink-light);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            transition: var(--transition);
            position: relative;
        }
        .main-nav a:hover {
            color: var(--primary);
            background: var(--primary-soft);
            text-decoration: none;
        }
        .main-nav a.active {
            color: var(--primary);
            font-weight: 700;
        }
        .main-nav a.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 4px;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 8px 10px;
            cursor: pointer;
            transition: var(--transition);
        }
        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--ink);
            border-radius: 2px;
            transition: var(--transition);
        }
        .hamburger:hover {
            background: var(--primary-soft);
            border-color: var(--primary);
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 600;
            cursor: pointer;
            border: 1px solid transparent;
            transition: var(--transition);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.3px;
            min-height: 40px;
        }
        .btn:hover {
            text-decoration: none;
        }
        .btn:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn:active {
            transform: translateY(1px);
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--accent-deep);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
        }
        .btn-sm {
            padding: 6px 14px;
            font-size: 0.85rem;
            min-height: 34px;
        }
        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 0.9rem;
            color: var(--muted);
            padding: 16px 0 0;
        }
        .breadcrumb a {
            color: var(--primary);
            font-weight: 500;
        }
        .breadcrumb a:hover {
            color: var(--accent);
            text-decoration: none;
        }
        .breadcrumb .sep {
            color: var(--faint);
            user-select: none;
        }
        /* Main */
        main {
            display: block;
        }
        .page-heading {
            padding: 24px 0 20px;
        }
        .page-heading h1 {
            font-size: clamp(1.8rem, 3.5vw, 2.4rem);
            font-weight: 800;
            color: var(--ink);
            line-height: 1.3;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }
        .page-heading .intro-text {
            font-size: 1.05rem;
            color: var(--muted);
            max-width: 820px;
            line-height: 1.85;
        }
        /* Section */
        .section {
            padding: 28px 0;
        }
        .section-header {
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 20px;
        }
        .section-title {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--ink);
            letter-spacing: 0.2px;
        }
        .section-subtitle {
            font-size: 0.95rem;
            color: var(--muted);
        }
        /* Score Cards */
        .score-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 16px;
        }
        .score-card {
            background: var(--card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            padding: 18px 20px;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .score-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: var(--primary);
        }
        .score-card .league-tag {
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 3px 10px;
            border-radius: 20px;
            display: inline-block;
            width: fit-content;
        }
        .score-card .match-time {
            font-size: 0.82rem;
            color: var(--muted);
        }
        .score-card .teams-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
        }
        .score-card .team {
            font-weight: 600;
            color: var(--ink);
            font-size: 0.95rem;
            flex: 1;
        }
        .score-card .team:last-child {
            text-align: right;
        }
        .score-card .score {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--ink);
            white-space: nowrap;
        }
        .score-card .match-status {
            font-size: 0.8rem;
            color: var(--accent);
            font-weight: 600;
            text-align: center;
            padding-top: 4px;
            border-top: 1px dashed var(--border);
        }
        .score-card .match-status.finished {
            color: var(--muted);
        }
        /* Focus Match */
        .focus-card {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 28px;
            background: var(--card);
            border-radius: var(--radius-xl);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            padding: 28px;
        }
        .focus-card .focus-info h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 8px;
        }
        .focus-card .focus-meta {
            font-size: 0.9rem;
            color: var(--muted);
            margin-bottom: 16px;
        }
        .focus-card .focus-score {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .focus-card .focus-desc {
            font-size: 0.95rem;
            color: var(--ink-light);
            line-height: 1.8;
        }
        .focus-card .focus-image img {
            border-radius: var(--radius-md);
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 200px;
        }
        /* Stats Strip */
        .stats-strip {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 16px;
        }
        .stat-item {
            background: var(--card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            padding: 18px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
        }
        .stat-item .stat-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 0.85rem;
            color: var(--muted);
            margin-top: 4px;
        }
        /* News List */
        .news-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 14px;
        }
        .news-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            background: var(--card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            padding: 16px 20px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .news-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }
        .news-item .news-date {
            font-size: 0.8rem;
            color: var(--muted);
            white-space: nowrap;
            padding-top: 3px;
            min-width: 80px;
            text-align: center;
            background: var(--bg);
            border-radius: var(--radius-sm);
            padding: 8px 10px;
            font-weight: 600;
        }
        .news-item .news-content {
            flex: 1;
        }
        .news-item .news-title {
            font-weight: 700;
            color: var(--ink);
            font-size: 1rem;
            margin-bottom: 4px;
            line-height: 1.5;
        }
        .news-item .news-summary {
            font-size: 0.88rem;
            color: var(--muted);
            line-height: 1.65;
        }
        /* Quick Entries */
        .quick-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 14px;
        }
        .quick-entry {
            display: flex;
            align-items: center;
            gap: 10px;
            background: var(--card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            padding: 14px 18px;
            font-weight: 600;
            color: var(--ink);
            transition: var(--transition);
            text-decoration: none;
            box-shadow: var(--shadow-sm);
        }
        .quick-entry:hover {
            color: var(--primary);
            border-color: var(--primary);
            text-decoration: none;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .quick-entry .entry-icon {
            font-size: 1.2rem;
            color: var(--accent);
            flex-shrink: 0;
        }
        /* Bottom CTA */
        .bottom-cta {
            background: var(--primary-soft);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            text-align: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
        }
        .bottom-cta h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 8px;
        }
        .bottom-cta p {
            color: var(--muted);
            font-size: 0.95rem;
            margin-bottom: 18px;
        }
        .bottom-cta .btn {
            min-width: 200px;
        }
        /* Footer */
        .site-footer {
            background: #1e293b;
            color: #cbd5e1;
            margin-top: 48px;
            padding: 40px 0 24px;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 28px;
        }
        .site-footer .footer-brand .logo {
            color: #fff;
            font-size: 1.2rem;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .site-footer .footer-brand .logo:hover {
            color: #93c5fd;
            text-decoration: none;
        }
        .site-footer .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.7;
            color: #94a3b8;
            max-width: 320px;
        }
        .site-footer .footer-col {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .site-footer .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: #e2e8f0;
            margin-bottom: 6px;
            letter-spacing: 0.5px;
        }
        .site-footer .footer-col a {
            color: #cbd5e1;
            font-size: 0.88rem;
            transition: var(--transition);
        }
        .site-footer .footer-col a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .site-footer .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid #334155;
            font-size: 0.82rem;
            color: #94a3b8;
        }
        .site-footer .footer-bottom a {
            color: #cbd5e1;
            transition: var(--transition);
        }
        .site-footer .footer-bottom a:hover {
            color: #fff;
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .focus-card {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .focus-card .focus-image img {
                min-height: 160px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 768px) {
            .header-main {
                gap: 12px;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                background: var(--card);
                border-top: 1px solid var(--border);
                padding: 10px 0;
                gap: 2px;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                z-index: 199;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                width: 100%;
                justify-content: flex-start;
                padding: 10px 20px;
            }
            .main-nav a.active::after {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .nav-cta {
                margin-left: auto;
            }
            .section {
                padding: 20px 0;
            }
            .page-heading h1 {
                font-size: 1.6rem;
            }
            .section-title {
                font-size: 1.2rem;
            }
            .score-grid {
                grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            }
            .news-item {
                flex-direction: column;
                gap: 8px;
            }
            .news-item .news-date {
                width: fit-content;
            }
            .bottom-cta {
                padding: 24px 18px;
            }
            .bottom-cta h2 {
                font-size: 1.3rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                align-items: center;
            }
        }
        @media (max-width: 480px) {
            body {
                font-size: 14px;
            }
            .container {
                padding: 0 14px;
            }
            .page-heading h1 {
                font-size: 1.4rem;
            }
            .section-title {
                font-size: 1.1rem;
            }
            .score-grid {
                grid-template-columns: 1fr;
            }
            .stats-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .stat-item .stat-num {
                font-size: 1.5rem;
            }
            .btn {
                padding: 8px 14px;
                font-size: 0.82rem;
                min-height: 36px;
                width: 100%;
            }
            .score-card {
                padding: 14px 16px;
            }
            .focus-card {
                padding: 18px;
            }
            .quick-grid {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1f6fe5;
            --primary-deep: #1a56c4;
            --primary-soft: #e8f0fe;
            --accent: #f97316;
            --accent-deep: #dc5e0a;
            --accent-soft: #fff1e6;
            --ink: #1e293b;
            --ink-light: #334155;
            --muted: #64748b;
            --faint: #94a3b8;
            --bg: #f5f7fb;
            --card: #ffffff;
            --border: #e2e8f0;
            --border-light: rgba(226, 232, 240, 0.8);
            --shadow-sm: 0 2px 8px rgba(30, 41, 59, 0.04);
            --shadow-md: 0 4px 16px rgba(30, 41, 59, 0.06);
            --shadow-lg: 0 12px 32px rgba(30, 41, 59, 0.1);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --font-base: 16px;
            --line-base: 1.75;
            --max-width: 1200px;
            --header-height: 64px;
            --transition: all 0.2s ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: var(--font-base);
            line-height: var(--line-base);
            color: var(--ink-light);
            background: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        /* Header & Navbar */
        .site-header {
            background: var(--card);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 200;
            box-shadow: var(--shadow-sm);
        }
        .header-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: var(--header-height);
            gap: 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--ink);
            letter-spacing: 0.5px;
            white-space: nowrap;
            transition: var(--transition);
        }
        .logo:hover {
            color: var(--primary);
            text-decoration: none;
        }
        .logo-mark {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 900;
            flex-shrink: 0;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }
        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--ink-light);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            transition: var(--transition);
            position: relative;
        }
        .main-nav a:hover {
            color: var(--primary);
            background: var(--primary-soft);
            text-decoration: none;
        }
        .main-nav a.active {
            color: var(--primary);
            font-weight: 700;
        }
        .main-nav a.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 4px;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 8px 10px;
            cursor: pointer;
            transition: var(--transition);
        }
        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--ink);
            border-radius: 2px;
            transition: var(--transition);
        }
        .hamburger:hover {
            background: var(--primary-soft);
            border-color: var(--primary);
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 600;
            cursor: pointer;
            border: 1px solid transparent;
            transition: var(--transition);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.3px;
            min-height: 40px;
        }
        .btn:hover {
            text-decoration: none;
        }
        .btn:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn:active {
            transform: translateY(1px);
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--accent-deep);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-soft);
            color: var(--primary-deep);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 0.85rem;
            min-height: 36px;
        }
        .chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
            background: var(--accent-soft);
            color: var(--accent-deep);
            border: 1px solid rgba(249, 115, 22, 0.25);
            white-space: nowrap;
            transition: var(--transition);
        }
        .chip:hover {
            background: var(--accent);
            color: #fff;
            text-decoration: none;
            border-color: var(--accent);
        }
        .chip-blue {
            background: var(--primary-soft);
            color: var(--primary-deep);
            border-color: rgba(31, 111, 229, 0.2);
        }
        .chip-blue:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--muted);
            padding: 18px 0 6px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--muted);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--faint);
            user-select: none;
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }
        /* Page header / intro */
        .page-header {
            padding: 28px 0 20px;
            border-bottom: 1px solid var(--border);
            margin-bottom: 28px;
        }
        .page-header h1 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--ink);
            margin: 0 0 10px;
            line-height: 1.35;
        }
        .page-header .intro {
            font-size: 1rem;
            color: var(--muted);
            max-width: 780px;
            line-height: 1.85;
            margin: 0;
        }
        /* Section */
        .section {
            padding: 28px 0;
        }
        .section-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--ink);
            margin: 0 0 20px;
            line-height: 1.4;
        }
        .section-subtitle {
            font-size: 0.95rem;
            color: var(--muted);
            margin: -12px 0 24px;
            max-width: 720px;
        }
        /* Data overview cards */
        .data-overview-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .data-card {
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .data-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .data-card .label {
            font-size: 0.8rem;
            color: var(--muted);
            margin-bottom: 6px;
            font-weight: 500;
        }
        .data-card .value {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .data-card .unit {
            font-size: 0.85rem;
            color: var(--faint);
        }
        .data-card .note {
            font-size: 0.78rem;
            color: var(--muted);
            margin-top: 8px;
            border-top: 1px solid var(--border);
            padding-top: 8px;
        }
        /* Bar chart visualization */
        .chart-container {
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-md);
        }
        .chart-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 18px;
        }
        .bar-chart {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .bar-item {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .bar-label {
            width: 110px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--ink-light);
            flex-shrink: 0;
            text-align: right;
        }
        .bar-track {
            flex: 1;
            height: 26px;
            background: var(--bg);
            border-radius: 13px;
            overflow: hidden;
            position: relative;
        }
        .bar-fill {
            height: 100%;
            border-radius: 13px;
            background: linear-gradient(90deg, var(--primary), #4a8ef2);
            transition: width 0.8s ease;
            min-width: 8px;
            display: flex;
            align-items: center;
            justify-content: flex-end;
            padding-right: 10px;
        }
        .bar-fill.accent-fill {
            background: linear-gradient(90deg, var(--accent), #fb923c);
        }
        .bar-value {
            font-size: 0.78rem;
            font-weight: 700;
            color: #fff;
        }
        .chart-note {
            font-size: 0.78rem;
            color: var(--faint);
            margin-top: 14px;
            text-align: right;
        }
        /* Ranking list */
        .rank-list {
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px 0;
            border-bottom: 1px solid var(--border);
            flex-wrap: wrap;
        }
        .rank-item:last-child {
            border-bottom: none;
        }
        .rank-num {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary-deep);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.85rem;
            flex-shrink: 0;
        }
        .rank-num.top1 {
            background: var(--accent-soft);
            color: var(--accent-deep);
        }
        .rank-info {
            flex: 1;
            min-width: 160px;
        }
        .rank-name {
            font-weight: 600;
            color: var(--ink);
            font-size: 0.95rem;
        }
        .rank-team {
            font-size: 0.78rem;
            color: var(--muted);
        }
        .rank-stat {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
        }
        .rank-stat span {
            font-size: 0.75rem;
            color: var(--faint);
            font-weight: 400;
        }
        /* Image + text block */
        .media-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-md);
        }
        .media-block .media-img {
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .media-block .media-img img {
            width: 100%;
            height: 260px;
            object-fit: cover;
        }
        .media-block .media-content h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--ink);
            margin: 0 0 12px;
        }
        .media-block .media-content p {
            color: var(--muted);
            font-size: 0.92rem;
            margin: 0 0 16px;
            line-height: 1.8;
        }
        /* Article list */
        .article-list {
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }
        .article-item {
            display: flex;
            gap: 16px;
            padding: 14px 0;
            border-bottom: 1px solid var(--border);
            align-items: center;
            flex-wrap: wrap;
        }
        .article-item:last-child {
            border-bottom: none;
        }
        .article-thumb {
            width: 80px;
            height: 56px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
        }
        .article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .article-info {
            flex: 1;
            min-width: 200px;
        }
        .article-title {
            font-weight: 600;
            color: var(--ink);
            font-size: 0.92rem;
            display: block;
            line-height: 1.5;
        }
        .article-meta {
            font-size: 0.75rem;
            color: var(--faint);
            margin-top: 4px;
        }
        .article-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            white-space: nowrap;
        }
        .article-link:hover {
            color: var(--accent);
        }
        /* FAQ */
        .faq-section {
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-md);
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 16px 0;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            color: var(--ink);
            cursor: pointer;
            font-size: 0.95rem;
            padding: 4px 0;
            transition: var(--transition);
            user-select: none;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 700;
            flex-shrink: 0;
            transition: var(--transition);
        }
        .faq-answer {
            padding: 10px 0 4px 30px;
            color: var(--muted);
            font-size: 0.9rem;
            line-height: 1.75;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item.open .faq-icon {
            background: var(--accent-soft);
            color: var(--accent-deep);
        }
        /* Bottom CTA */
        .light-cta {
            background: var(--primary-soft);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            border: 1px solid rgba(31, 111, 229, 0.12);
        }
        .light-cta h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--ink);
            margin: 0 0 8px;
        }
        .light-cta p {
            font-size: 0.9rem;
            color: var(--muted);
            margin: 0 0 16px;
        }
        /* Footer */
        .site-footer {
            background: var(--ink);
            color: #cbd5e1;
            padding: 40px 0 20px;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.3fr;
            gap: 32px;
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 1.2rem;
            margin-bottom: 12px;
            display: flex;
        }
        .footer-brand .logo-mark {
            background: var(--accent);
        }
        .footer-brand p {
            font-size: 0.85rem;
            color: #94a3b8;
            line-height: 1.7;
            margin: 0;
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 12px;
        }
        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: #94a3b8;
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: #fff;
            text-decoration: none;
        }
        .footer-bottom {
            border-top: 1px solid rgba(148, 163, 184, 0.2);
            margin-top: 28px;
            padding-top: 16px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.8rem;
            color: #64748b;
        }
        .footer-bottom a {
            color: #94a3b8;
            font-size: 0.8rem;
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .data-overview-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .media-block {
                grid-template-columns: 1fr;
                gap: 20px;
                padding: 24px;
            }
            .media-block .media-img img {
                height: 220px;
            }
        }
        @media (max-width: 768px) {
            .header-main {
                flex-wrap: wrap;
                gap: 12px;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                gap: 2px;
                padding: 8px 0;
                background: var(--card);
                border-radius: var(--radius-md);
                box-shadow: var(--shadow-md);
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                z-index: 199;
                padding: 12px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                width: 100%;
                padding: 10px 14px;
            }
            .main-nav a.active::after {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .nav-cta {
                display: none;
            }
            .data-overview-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .bar-label {
                width: 80px;
                font-size: 0.75rem;
                text-align: left;
            }
            .page-header h1 {
                font-size: 1.5rem;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .media-block .media-img img {
                height: 180px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .page-header h1 {
                font-size: 1.3rem;
            }
            .container {
                padding: 0 14px;
            }
            .bar-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
            .bar-label {
                width: 100%;
                text-align: left;
            }
            .rank-item {
                flex-wrap: wrap;
                gap: 8px;
            }
            .rank-stat {
                width: 100%;
                text-align: left;
                padding-left: 46px;
            }
            .article-item {
                flex-wrap: wrap;
            }
            .article-thumb {
                width: 60px;
                height: 44px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1f6fe5;
            --primary-deep: #1a56c4;
            --primary-soft: #e8f0fe;
            --accent: #f97316;
            --accent-deep: #dc5e0a;
            --accent-soft: #fff1e6;
            --ink: #1e293b;
            --ink-light: #334155;
            --muted: #64748b;
            --faint: #94a3b8;
            --bg: #f5f7fb;
            --card: #ffffff;
            --border: #e2e8f0;
            --border-light: rgba(226, 232, 240, 0.8);
            --shadow-sm: 0 2px 8px rgba(30, 41, 59, 0.04);
            --shadow-md: 0 4px 16px rgba(30, 41, 59, 0.06);
            --shadow-lg: 0 12px 32px rgba(30, 41, 59, 0.1);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --font-base: 16px;
            --line-base: 1.75;
            --max-width: 1200px;
            --header-height: 64px;
            --transition: all 0.2s ease;
        }

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

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: var(--font-base);
            line-height: var(--line-base);
            color: var(--ink-light);
            background: var(--bg);
            min-height: 100vh;
            padding-bottom: 0;
            overflow-x: hidden;
        }

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

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

        a:hover {
            color: var(--accent);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

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

        /* Header & Navbar */
        .site-header {
            background: var(--card);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 200;
            box-shadow: var(--shadow-sm);
        }

        .header-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: var(--header-height);
            gap: 24px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--ink);
            letter-spacing: 0.5px;
            white-space: nowrap;
            transition: var(--transition);
        }

        .logo:hover {
            color: var(--primary);
            text-decoration: none;
        }

        .logo-mark {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 900;
            flex-shrink: 0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }

        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--ink-light);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            transition: var(--transition);
            position: relative;
        }

        .main-nav a:hover {
            color: var(--primary);
            background: var(--primary-soft);
            text-decoration: none;
        }

        .main-nav a.active {
            color: var(--primary);
            font-weight: 700;
        }

        .main-nav a.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 4px;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 8px 10px;
            cursor: pointer;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--ink);
            border-radius: 2px;
            transition: var(--transition);
        }

        .hamburger:hover {
            background: var(--primary-soft);
            border-color: var(--primary);
        }

        .notice-strip {
            background: var(--primary-soft);
            border-top: 1px solid var(--border-light);
            padding: 6px 0;
        }

        .notice-strip-inner {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .notice-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 500;
            color: var(--ink-light);
            transition: var(--transition);
            white-space: nowrap;
        }

        .notice-chip:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            text-decoration: none;
        }

        .notice-chip .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }

        /* Breadcrumb */
        .breadcrumb-wrap {
            padding: 16px 0 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            color: var(--muted);
            flex-wrap: wrap;
        }

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

        .breadcrumb a:hover {
            color: var(--primary);
            text-decoration: none;
        }

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

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

        /* Page Head */
        .page-head {
            padding: 24px 0 32px;
            position: relative;
            overflow: hidden;
        }

        .page-head-bg {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/de979529752758db.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.08;
            z-index: 0;
            pointer-events: none;
        }

        .page-head-inner {
            position: relative;
            z-index: 1;
        }

        .page-head h1 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--ink);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .page-head .page-lead {
            font-size: 1rem;
            color: var(--muted);
            max-width: 720px;
            line-height: 1.85;
        }

        /* Stats Strip */
        .stats-strip {
            padding: 20px 0 32px;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .stat-card {
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            box-shadow: var(--shadow-sm);
            text-align: center;
            transition: var(--transition);
        }

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

        .stat-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .stat-label {
            font-size: 0.82rem;
            color: var(--muted);
            font-weight: 500;
        }

        /* Section Base */
        .section {
            padding: 36px 0;
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .section-header h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--ink);
            letter-spacing: 0.3px;
        }

        .section-header .section-note {
            font-size: 0.85rem;
            color: var(--faint);
            font-weight: 400;
        }

        /* Horizontal Scroll Cards */
        .hscroll-wrap {
            overflow-x: auto;
            overflow-y: visible;
            display: flex;
            gap: 16px;
            padding: 4px 4px 16px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }

        .hscroll-wrap::-webkit-scrollbar {
            height: 6px;
        }

        .hscroll-wrap::-webkit-scrollbar-track {
            background: transparent;
        }

        .hscroll-wrap::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 3px;
        }

        .hscroll-wrap::-webkit-scrollbar-thumb:hover {
            background: var(--faint);
        }

        .match-card {
            flex: 0 0 300px;
            scroll-snap-align: start;
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

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

        .match-card-img {
            width: 100%;
            height: 130px;
            object-fit: cover;
        }

        .match-card-body {
            padding: 16px 18px 18px;
        }

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

        .match-league {
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 3px 10px;
            border-radius: 4px;
        }

        .match-status {
            font-size: 0.72rem;
            font-weight: 600;
            padding: 3px 8px;
            border-radius: 4px;
            background: var(--accent-soft);
            color: var(--accent-deep);
        }

        .match-status.live {
            background: #fee2e2;
            color: #dc2626;
        }

        .match-status.upcoming {
            background: var(--primary-soft);
            color: var(--primary);
        }

        .match-status.ended {
            background: #f1f5f9;
            color: var(--muted);
        }

        .match-teams {
            font-size: 1rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .match-time {
            font-size: 0.82rem;
            color: var(--muted);
        }

        .match-card-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--primary);
            margin-top: 10px;
        }

        .match-card-link:hover {
            color: var(--accent);
            text-decoration: none;
        }

        /* View More Button Center */
        .view-more-wrap {
            text-align: center;
            padding: 8px 0 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 600;
            cursor: pointer;
            border: 1px solid transparent;
            transition: var(--transition);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.3px;
            min-height: 40px;
        }

        .btn:hover {
            text-decoration: none;
        }

        .btn:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .btn:active {
            transform: translateY(1px);
        }

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

        .btn-primary:hover {
            background: var(--accent-deep);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }

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

        /* Schedule List */
        .schedule-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .schedule-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 20px;
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
            flex-wrap: wrap;
        }

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

        .schedule-item:hover {
            background: #fafbfd;
        }

        .schedule-date {
            flex: 0 0 70px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--muted);
            text-align: center;
            line-height: 1.3;
        }

        .schedule-teams {
            flex: 1;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--ink);
            min-width: 160px;
        }

        .schedule-league {
            flex: 0 0 auto;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 3px 10px;
            border-radius: 4px;
        }

        .schedule-status {
            flex: 0 0 auto;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 4px;
            background: var(--accent-soft);
            color: var(--accent-deep);
        }

        .schedule-status.ended {
            background: #f1f5f9;
            color: var(--muted);
        }

        .schedule-status.live {
            background: #fee2e2;
            color: #dc2626;
        }

        /* Feature Cards */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .feature-card {
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }

        .feature-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        .feature-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }

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

        .feature-card-body h3 {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 8px;
        }

        .feature-card-body p {
            font-size: 0.88rem;
            color: var(--muted);
            line-height: 1.7;
            flex: 1;
        }

        .feature-card-body a {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            margin-top: 12px;
        }

        .feature-card-body a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        /* Quick Links */
        .quick-link-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 14px;
        }

        .quick-link-item {
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 16px 18px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .quick-link-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
            transform: translateY(-2px);
            text-decoration: none;
        }

        .quick-link-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            font-weight: 800;
            flex-shrink: 0;
        }

        .quick-link-text {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--ink);
        }

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

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

        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }

        .faq-item summary {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 600;
            color: var(--ink);
            font-size: 0.95rem;
            transition: var(--transition);
            user-select: none;
        }

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

        .faq-item summary:hover {
            background: #fafbfd;
        }

        .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 6px;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 800;
            flex-shrink: 0;
        }

        .faq-answer {
            padding: 0 20px 18px 56px;
            font-size: 0.88rem;
            color: var(--muted);
            line-height: 1.7;
        }

        /* Bottom CTA */
        .bottom-cta {
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }

        .bottom-cta-left h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 4px;
        }

        .bottom-cta-left p {
            font-size: 0.88rem;
            color: var(--muted);
        }

        /* Footer */
        .site-footer {
            background: var(--ink);
            color: #cbd5e1;
            padding: 48px 0 24px;
            margin-top: 56px;
        }

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

        .footer-brand .logo {
            color: #fff;
            font-size: 1.3rem;
            margin-bottom: 12px;
            gap: 10px;
        }

        .footer-brand .logo-mark {
            background: var(--primary);
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: #94a3b8;
            line-height: 1.7;
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 0.85rem;
            font-weight: 700;
            color: #e2e8f0;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .footer-col a {
            display: block;
            font-size: 0.82rem;
            color: #94a3b8;
            padding: 5px 0;
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: #fff;
            text-decoration: none;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 0.8rem;
            color: #64748b;
        }

        .footer-bottom a {
            color: #94a3b8;
            transition: var(--transition);
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(4, 1fr);
                gap: 12px;
            }

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

            .feature-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
                gap: 24px;
            }
        }

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

            .main-nav {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--card);
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 8px 16px 16px;
                z-index: 199;
            }

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

            .main-nav a {
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                font-size: 0.95rem;
                border-bottom: 1px solid var(--border-light);
            }

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

            .main-nav a.active::after {
                display: none;
            }

            .main-nav a.active {
                background: var(--primary-soft);
            }

            .page-head h1 {
                font-size: 1.5rem;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }

            .stat-number {
                font-size: 1.4rem;
            }

            .section {
                padding: 24px 0;
            }

            .section-header h2 {
                font-size: 1.2rem;
            }

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

            .feature-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .feature-card-img {
                height: 160px;
            }

            .quick-link-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .schedule-item {
                padding: 12px 14px;
                gap: 10px;
            }

            .schedule-date {
                flex: 0 0 56px;
                font-size: 0.75rem;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }

            .footer-brand {
                grid-column: 1 / -1;
            }

            .bottom-cta {
                flex-direction: column;
                text-align: center;
                padding: 24px 18px;
            }
        }

        @media (max-width: 480px) {
            .page-head h1 {
                font-size: 1.3rem;
            }

            .page-head .page-lead {
                font-size: 0.88rem;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
            }

            .stat-card {
                padding: 12px 14px;
            }

            .stat-number {
                font-size: 1.2rem;
            }

            .stat-label {
                font-size: 0.72rem;
            }

            .section-header h2 {
                font-size: 1.1rem;
            }

            .match-card {
                flex: 0 0 220px;
            }

            .match-card-img {
                height: 110px;
            }

            .quick-link-grid {
                grid-template-columns: 1fr;
                gap: 8px;
            }

            .quick-link-item {
                padding: 12px 14px;
            }

            .schedule-item {
                flex-wrap: wrap;
                padding: 10px 12px;
            }

            .schedule-teams {
                flex: 1 1 100%;
                min-width: auto;
                font-size: 0.88rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }

            .btn {
                width: 100%;
                justify-content: center;
            }

            .faq-item summary {
                padding: 12px 14px;
                font-size: 0.88rem;
            }

            .faq-answer {
                padding: 0 14px 14px 42px;
                font-size: 0.82rem;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #1f6fe5;
            --primary-deep: #1a56c4;
            --primary-soft: #e8f0fe;
            --accent: #f97316;
            --accent-deep: #dc5e0a;
            --accent-soft: #fff1e6;
            --ink: #1e293b;
            --ink-light: #334155;
            --muted: #64748b;
            --faint: #94a3b8;
            --bg: #f5f7fb;
            --card: #ffffff;
            --border: #e2e8f0;
            --border-light: rgba(226, 232, 240, 0.8);
            --shadow-sm: 0 2px 8px rgba(30, 41, 59, 0.04);
            --shadow-md: 0 4px 16px rgba(30, 41, 59, 0.06);
            --shadow-lg: 0 12px 32px rgba(30, 41, 59, 0.1);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --font-base: 16px;
            --line-base: 1.75;
            --max-width: 1200px;
            --header-height: 64px;
            --transition: all 0.2s ease;
        }

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

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: var(--font-base);
            line-height: var(--line-base);
            color: var(--ink-light);
            background: var(--bg);
            min-height: 100vh;
            padding-bottom: 60px;
            overflow-x: hidden;
        }

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

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

        a:hover {
            color: var(--accent);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

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

        .site-header {
            background: var(--card);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 200;
            box-shadow: var(--shadow-sm);
        }

        .header-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: var(--header-height);
            gap: 24px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--ink);
            letter-spacing: 0.5px;
            white-space: nowrap;
            transition: var(--transition);
        }

        .logo:hover {
            color: var(--primary);
            text-decoration: none;
        }

        .logo-mark {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 900;
            flex-shrink: 0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }

        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--ink-light);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            transition: var(--transition);
            position: relative;
        }

        .main-nav a:hover {
            color: var(--primary);
            background: var(--primary-soft);
            text-decoration: none;
        }

        .main-nav a.active {
            color: var(--primary);
            font-weight: 700;
        }

        .main-nav a.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 4px;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 8px 10px;
            cursor: pointer;
            transition: var(--transition);
        }

        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--ink);
            border-radius: 2px;
            transition: var(--transition);
        }

        .hamburger:hover {
            background: var(--primary-soft);
            border-color: var(--primary);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 600;
            cursor: pointer;
            border: 1px solid transparent;
            transition: var(--transition);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.3px;
            min-height: 40px;
        }

        .btn:hover {
            text-decoration: none;
        }

        .btn:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .btn:active {
            transform: translateY(1px);
        }

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

        .btn-primary:hover {
            background: var(--accent-deep);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            border-color: var(--primary);
            color: var(--primary);
        }

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

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--muted);
            padding: 16px 0;
        }

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

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

        .breadcrumb .separator {
            color: var(--faint);
            user-select: none;
        }

        .page-header {
            padding: 40px 0 28px;
        }

        .page-header h1 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--ink);
            letter-spacing: 0.5px;
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .page-header .intro {
            font-size: 1.05rem;
            color: var(--muted);
            max-width: 760px;
            line-height: 1.8;
        }

        .section {
            padding: 40px 0;
        }

        .section-alt {
            background: var(--card);
            border-radius: var(--radius-lg);
            margin: 20px 0 40px;
            padding: 32px;
            box-shadow: var(--shadow-md);
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .section-head h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--ink);
            letter-spacing: 0.3px;
        }

        .section-head .tag {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 4px 12px;
            border-radius: 20px;
        }

        .featured-analysis {
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 28px;
            align-items: stretch;
            background: var(--card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }

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

        .featured-content {
            padding: 28px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 14px;
        }

        .featured-content .cat-label {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--accent);
            background: var(--accent-soft);
            padding: 4px 10px;
            border-radius: 20px;
            letter-spacing: 0.5px;
        }

        .featured-content h2 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--ink);
            line-height: 1.4;
        }

        .featured-content p {
            font-size: 0.95rem;
            color: var(--muted);
            line-height: 1.8;
        }

        .featured-content .meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.8rem;
            color: var(--faint);
        }

        .featured-image {
            min-height: 260px;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .featured-image::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(31, 111, 229, 0.12), rgba(249, 115, 22, 0.08));
            pointer-events: none;
        }

        .analysis-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .analysis-card {
            background: var(--card);
            border-radius: var(--radius-md);
            padding: 22px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
            gap: 12px;
            transition: var(--transition);
        }

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

        .analysis-card .meta-row {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.78rem;
            color: var(--faint);
            flex-wrap: wrap;
        }

        .analysis-card .badge {
            font-size: 0.72rem;
            font-weight: 700;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 2px 8px;
            border-radius: 12px;
            letter-spacing: 0.5px;
        }

        .analysis-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--ink);
            line-height: 1.45;
        }

        .analysis-card p {
            font-size: 0.9rem;
            color: var(--muted);
            line-height: 1.75;
            flex: 1;
        }

        .analysis-card .card-link {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--primary);
            align-self: flex-start;
        }

        .analysis-card .card-link:hover {
            color: var(--accent);
        }

        .stat-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin: 10px 0;
        }

        .stat-item {
            background: var(--card);
            border-radius: var(--radius-md);
            padding: 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }

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

        .stat-item .number {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .stat-item .label {
            font-size: 0.85rem;
            color: var(--muted);
            margin-top: 6px;
        }

        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .topic-card {
            background: var(--card);
            border-radius: var(--radius-md);
            padding: 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

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

        .topic-card h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--ink);
        }

        .topic-card p {
            font-size: 0.87rem;
            color: var(--muted);
            flex: 1;
        }

        .topic-card .tag-link {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--accent);
            align-self: flex-start;
        }

        .trend-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .trend-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 0.85rem;
            font-weight: 600;
            border-radius: 20px;
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .trend-tag:hover {
            background: var(--primary);
            color: #fff;
            text-decoration: none;
            border-color: var(--primary);
        }

        .method-box {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .method-item {
            background: var(--bg);
            border-radius: var(--radius-md);
            padding: 18px;
            border: 1px solid var(--border);
        }

        .method-item .step {
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 8px;
        }

        .method-item h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 6px;
        }

        .method-item p {
            font-size: 0.83rem;
            color: var(--muted);
            line-height: 1.7;
        }

        .cta-box {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-deep) 100%);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-lg);
        }

        .cta-box h2 {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }

        .cta-box p {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 520px;
        }

        .cta-box .btn-white {
            background: #fff;
            color: var(--primary);
            font-weight: 700;
        }

        .cta-box .btn-white:hover {
            background: var(--accent-soft);
            color: var(--accent-deep);
        }

        .site-footer {
            background: var(--ink);
            color: #cbd5e1;
            padding: 40px 0 20px;
            margin-top: 40px;
            border-top: 1px solid var(--border);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 24px;
        }

        .footer-brand .logo {
            color: #fff;
            margin-bottom: 10px;
        }

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

        .footer-brand p {
            font-size: 0.88rem;
            color: #94a3b8;
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: #94a3b8;
            padding: 4px 0;
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: var(--primary);
            text-decoration: none;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 0.82rem;
            color: #64748b;
        }

        .footer-bottom a {
            color: #94a3b8;
            font-size: 0.82rem;
        }

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

        @media (max-width: 1024px) {
            .main-nav {
                gap: 2px;
            }
            .main-nav a {
                padding: 8px 10px;
                font-size: 0.82rem;
            }
            .analysis-list {
                grid-template-columns: 1fr;
            }
            .featured-analysis {
                grid-template-columns: 1fr;
            }
            .featured-image {
                min-height: 200px;
                order: -1;
            }
            .stat-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .topic-grid {
                grid-template-columns: 1fr 1fr;
            }
            .method-box {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-bottom: 50px;
            }
            .header-main {
                position: relative;
                flex-wrap: wrap;
            }
            .hamburger {
                display: flex;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--card);
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                padding: 12px 16px;
                gap: 4px;
                align-items: stretch;
                z-index: 199;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 10px 14px;
                font-size: 0.95rem;
                width: 100%;
            }
            .main-nav a.active::after {
                display: none;
            }
            .main-nav a.active {
                background: var(--primary-soft);
            }
            .page-header h1 {
                font-size: 1.5rem;
            }
            .section {
                padding: 28px 0;
            }
            .section-alt {
                padding: 20px;
                margin: 14px 0 28px;
            }
            .featured-content {
                padding: 20px;
            }
            .featured-content h2 {
                font-size: 1.15rem;
            }
            .analysis-card {
                padding: 18px;
            }
            .analysis-card h3 {
                font-size: 0.98rem;
            }
            .stat-strip {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-item {
                padding: 14px;
            }
            .stat-item .number {
                font-size: 1.3rem;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .method-box {
                grid-template-columns: 1fr;
            }
            .cta-box {
                flex-direction: column;
                text-align: center;
                padding: 24px 20px;
            }
            .cta-box .btn-white {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .page-header h1 {
                font-size: 1.3rem;
            }
            .page-header .intro {
                font-size: 0.95rem;
            }
            .section-head h2 {
                font-size: 1.25rem;
            }
            .featured-content p {
                font-size: 0.88rem;
            }
            .analysis-card p {
                font-size: 0.85rem;
            }
            .stat-strip {
                grid-template-columns: 1fr;
            }
            .trend-list {
                gap: 8px;
            }
            .trend-tag {
                font-size: 0.78rem;
                padding: 5px 12px;
            }
            .cta-box h2 {
                font-size: 1.15rem;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #1f6fe5;
            --primary-deep: #1a56c4;
            --primary-soft: #e8f0fe;
            --accent: #f97316;
            --accent-deep: #dc5e0a;
            --accent-soft: #fff1e6;
            --ink: #1e293b;
            --ink-light: #334155;
            --muted: #64748b;
            --faint: #94a3b8;
            --bg: #f5f7fb;
            --card: #ffffff;
            --border: #e2e8f0;
            --border-light: rgba(226, 232, 240, 0.8);
            --shadow-sm: 0 2px 8px rgba(30, 41, 59, 0.04);
            --shadow-md: 0 4px 16px rgba(30, 41, 59, 0.06);
            --shadow-lg: 0 12px 32px rgba(30, 41, 59, 0.1);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --font-base: 16px;
            --line-base: 1.75;
            --max-width: 1200px;
            --header-height: 64px;
            --transition: all 0.2s ease;
        }

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

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: var(--font-base);
            line-height: var(--line-base);
            color: var(--ink-light);
            background: var(--bg);
            min-height: 100vh;
            padding-bottom: 60px;
            overflow-x: hidden;
        }

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

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

        a:hover {
            color: var(--accent);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

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

        /* Header & Nav */
        .site-header {
            background: var(--card);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 200;
            box-shadow: var(--shadow-sm);
        }

        .header-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: var(--header-height);
            gap: 24px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--ink);
            letter-spacing: 0.5px;
            white-space: nowrap;
            transition: var(--transition);
        }

        .logo:hover {
            color: var(--primary);
            text-decoration: none;
        }

        .logo-mark {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 900;
            flex-shrink: 0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }

        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--ink-light);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            transition: var(--transition);
            position: relative;
        }

        .main-nav a:hover {
            color: var(--primary);
            background: var(--primary-soft);
            text-decoration: none;
        }

        .main-nav a.active {
            color: var(--primary);
            font-weight: 700;
        }

        .main-nav a.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 4px;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 8px 10px;
            cursor: pointer;
            transition: var(--transition);
        }

        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--ink);
            border-radius: 2px;
            transition: var(--transition);
        }

        .hamburger:hover {
            background: var(--primary-soft);
            border-color: var(--primary);
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 600;
            cursor: pointer;
            border: 1px solid transparent;
            transition: var(--transition);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.3px;
            min-height: 40px;
        }

        .btn:hover {
            text-decoration: none;
        }

        .btn:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .btn:active {
            transform: translateY(1px);
        }

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

        .btn-primary:hover {
            background: var(--accent-deep);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary-soft);
            color: var(--primary-deep);
            border-color: var(--primary-deep);
        }

        .btn-sm {
            padding: 6px 14px;
            min-height: 32px;
            font-size: 0.8rem;
        }

        .btn-lg {
            padding: 14px 28px;
            min-height: 48px;
            font-size: 1rem;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--muted);
            padding: 16px 0 8px;
            flex-wrap: wrap;
        }

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

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

        .breadcrumb .separator {
            color: var(--faint);
            font-size: 0.8rem;
        }

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

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

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

        .section-header {
            margin-bottom: 32px;
        }

        .section-header h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 8px;
            letter-spacing: 0.5px;
        }

        .section-header p {
            color: var(--muted);
            font-size: 0.95rem;
            max-width: 640px;
        }

        /* Category intro */
        .category-intro {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
            margin-bottom: 32px;
        }

        .category-intro h1 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--ink);
            line-height: 1.3;
            letter-spacing: 0.5px;
        }

        .category-intro p {
            color: var(--muted);
            font-size: 1rem;
            max-width: 760px;
        }

        /* Main layout with sidebar */
        .layout-with-sidebar {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 32px;
            align-items: start;
        }

        /* News list */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .news-item {
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .news-item:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(31, 111, 229, 0.25);
            transform: translateY(-2px);
        }

        .news-item .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 0.8rem;
            color: var(--muted);
        }

        .news-item .news-meta .tag {
            background: var(--primary-soft);
            color: var(--primary);
            padding: 2px 10px;
            border-radius: 20px;
            font-weight: 500;
            font-size: 0.75rem;
        }

        .news-item .news-meta .tag.orange {
            background: var(--accent-soft);
            color: var(--accent-deep);
        }

        .news-item h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--ink);
            line-height: 1.4;
        }

        .news-item h3 a {
            color: var(--ink);
        }

        .news-item h3 a:hover {
            color: var(--primary);
        }

        .news-item p {
            color: var(--muted);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .news-item .read-more {
            align-self: flex-start;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .news-item .read-more:hover {
            color: var(--accent);
            text-decoration: none;
        }

        .news-item .read-more::after {
            content: "→";
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .news-item .read-more:hover::after {
            transform: translateX(3px);
        }

        /* Sidebar */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: calc(var(--header-height) + 24px);
        }

        .sidebar-card {
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px;
            box-shadow: var(--shadow-sm);
        }

        .sidebar-card h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .sidebar-card .stat-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }

        .sidebar-card .stat-item {
            background: var(--bg);
            border-radius: var(--radius-sm);
            padding: 12px 14px;
            text-align: center;
        }

        .sidebar-card .stat-item .stat-number {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--primary);
            display: block;
            line-height: 1.2;
        }

        .sidebar-card .stat-item .stat-label {
            font-size: 0.75rem;
            color: var(--muted);
            display: block;
            margin-top: 4px;
        }

        .sidebar-card .quick-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .sidebar-card .quick-links li a {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--ink-light);
            padding: 6px 0;
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .sidebar-card .quick-links li:last-child a {
            border-bottom: none;
        }

        .sidebar-card .quick-links li a:hover {
            color: var(--primary);
            text-decoration: none;
            padding-left: 4px;
        }

        .sidebar-card .quick-links li a::before {
            content: "›";
            color: var(--primary);
            font-weight: 700;
            font-size: 1rem;
        }

        /* Team snapshot cards */
        .team-snapshot-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .team-snapshot-card {
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

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

        .team-snapshot-card .snapshot-img {
            height: 140px;
            overflow: hidden;
        }

        .team-snapshot-card .snapshot-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

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

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

        .team-snapshot-card .snapshot-body h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 4px;
        }

        .team-snapshot-card .snapshot-body p {
            font-size: 0.8rem;
            color: var(--muted);
            line-height: 1.5;
        }

        /* Data strip */
        .data-strip {
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            text-align: center;
        }

        .data-strip .data-item .data-number {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            display: block;
            line-height: 1.3;
        }

        .data-strip .data-item .data-label {
            font-size: 0.8rem;
            color: var(--muted);
            display: block;
            margin-top: 4px;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 860px;
        }

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

        .faq-item:hover {
            border-color: rgba(31, 111, 229, 0.3);
        }

        .faq-item details {
            cursor: pointer;
        }

        .faq-item summary {
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            font-weight: 600;
            color: var(--ink);
            font-size: 0.95rem;
            gap: 12px;
            user-select: none;
        }

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

        .faq-item summary::after {
            content: "+";
            font-size: 1.4rem;
            color: var(--primary);
            font-weight: 400;
            flex-shrink: 0;
            transition: var(--transition);
            line-height: 1;
        }

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

        .faq-item details[open] summary {
            border-bottom: 1px solid var(--border-light);
        }

        .faq-item .faq-answer {
            padding: 16px 20px;
            color: var(--muted);
            font-size: 0.9rem;
            line-height: 1.75;
            background: var(--bg);
        }

        /* Bottom CTA */
        .bottom-cta {
            background: var(--primary-soft);
            border: 1px solid rgba(31, 111, 229, 0.15);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            text-align: center;
            box-shadow: var(--shadow-sm);
        }

        .bottom-cta h2 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 8px;
        }

        .bottom-cta p {
            color: var(--muted);
            font-size: 0.95rem;
            margin-bottom: 16px;
        }

        /* Footer */
        .site-footer {
            background: var(--ink);
            color: #e2e8f0;
            padding: 48px 0 24px;
            margin-top: 56px;
        }

        .site-footer a {
            color: #cbd5e1;
        }

        .site-footer a:hover {
            color: var(--accent);
            text-decoration: none;
        }

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

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

        .footer-brand .logo .logo-mark {
            background: var(--accent);
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: #94a3b8;
            max-width: 340px;
            line-height: 1.7;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: #94a3b8;
            padding: 4px 0;
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: var(--accent);
            padding-left: 4px;
            text-decoration: none;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: #94a3b8;
        }

        .footer-bottom a {
            color: #94a3b8;
            margin: 0 4px;
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .layout-with-sidebar {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--card);
                flex-direction: column;
                align-items: stretch;
                padding: 12px 20px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 10px 14px;
                border-radius: var(--radius-sm);
            }
            .main-nav a.active::after {
                display: none;
            }
            .nav-cta .btn {
                display: none;
            }
            .section {
                padding: 40px 0;
            }
            .category-intro h1 {
                font-size: 1.5rem;
            }
            .team-snapshot-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .news-item {
                padding: 16px 18px;
            }
            .bottom-cta {
                padding: 24px 18px;
            }
            .bottom-cta h2 {
                font-size: 1.2rem;
            }
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
                padding: 16px;
                gap: 12px;
            }
            .data-strip .data-item .data-number {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 480px) {
            .container {
                padding: 0 14px;
            }
            .category-intro h1 {
                font-size: 1.3rem;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
            .news-item h3 {
                font-size: 1rem;
            }
            .news-item p {
                font-size: 0.85rem;
            }
            .btn {
                min-height: 36px;
                padding: 8px 16px;
                font-size: 0.85rem;
            }
            .data-strip {
                grid-template-columns: 1fr;
            }
            .footer-col h4 {
                font-size: 0.9rem;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #1f6fe5;
            --primary-deep: #1a56c4;
            --primary-soft: #e8f0fe;
            --accent: #f97316;
            --accent-deep: #dc5e0a;
            --accent-soft: #fff1e6;
            --ink: #1e293b;
            --ink-light: #334155;
            --muted: #64748b;
            --faint: #94a3b8;
            --bg: #f5f7fb;
            --card: #ffffff;
            --border: #e2e8f0;
            --border-light: rgba(226, 232, 240, 0.8);
            --shadow-sm: 0 2px 8px rgba(30, 41, 59, 0.04);
            --shadow-md: 0 4px 16px rgba(30, 41, 59, 0.06);
            --shadow-lg: 0 12px 32px rgba(30, 41, 59, 0.1);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --font-base: 16px;
            --line-base: 1.75;
            --max-width: 1200px;
            --header-height: 64px;
            --transition: all 0.2s ease;
        }

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

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: var(--font-base);
            line-height: var(--line-base);
            color: var(--ink-light);
            background: var(--bg);
            min-height: 100vh;
            padding-bottom: 60px;
            overflow-x: hidden;
        }

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

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

        a:hover {
            color: var(--accent);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

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

        /* Header & Navbar */
        .site-header {
            background: var(--card);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 200;
            box-shadow: var(--shadow-sm);
        }

        .header-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: var(--header-height);
            gap: 24px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--ink);
            letter-spacing: 0.5px;
            white-space: nowrap;
            transition: var(--transition);
        }

        .logo:hover {
            color: var(--primary);
            text-decoration: none;
        }

        .logo-mark {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 900;
            flex-shrink: 0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }

        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--ink-light);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            transition: var(--transition);
            position: relative;
        }

        .main-nav a:hover {
            color: var(--primary);
            background: var(--primary-soft);
            text-decoration: none;
        }

        .main-nav a.active {
            color: var(--primary);
            font-weight: 700;
        }

        .main-nav a.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 4px;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 8px 10px;
            cursor: pointer;
            transition: var(--transition);
        }

        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--ink);
            border-radius: 2px;
            transition: var(--transition);
        }

        .hamburger:hover {
            background: var(--primary-soft);
            border-color: var(--primary);
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 600;
            cursor: pointer;
            border: 1px solid transparent;
            transition: var(--transition);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.3px;
            min-height: 40px;
        }

        .btn:hover {
            text-decoration: none;
        }

        .btn:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .btn:active {
            transform: translateY(1px);
        }

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

        .btn-primary:hover {
            background: var(--accent-deep);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }

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

        .btn-sm {
            padding: 8px 16px;
            min-height: 36px;
            font-size: 0.82rem;
        }

        /* Breadcrumb */
        .breadcrumb-wrap {
            padding: 20px 0 8px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 0.85rem;
            color: var(--muted);
        }

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

        .breadcrumb a:hover {
            color: var(--primary);
            text-decoration: none;
        }

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

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

        /* Page Header */
        .page-header {
            padding: 16px 0 24px;
        }

        .page-header h1 {
            font-size: clamp(1.8rem, 3vw, 2.4rem);
            font-weight: 800;
            color: var(--ink);
            line-height: 1.3;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

        .page-header .subtitle {
            font-size: 1rem;
            color: var(--muted);
            max-width: 720px;
            line-height: 1.8;
        }

        /* Announcement bar */
        .announcement-bar {
            background: var(--primary-soft);
            border: 1px solid rgba(31, 111, 229, 0.15);
            border-radius: var(--radius-md);
            padding: 10px 16px;
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--ink-light);
            margin-bottom: 20px;
        }

        .announcement-bar .badge {
            background: var(--primary);
            color: #fff;
            border-radius: 999px;
            padding: 2px 12px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }

        .announcement-bar a {
            font-weight: 600;
            color: var(--primary);
        }

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

        /* Section Titles */
        .section-title {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .section-sub {
            font-size: 0.92rem;
            color: var(--muted);
            margin-bottom: 20px;
            max-width: 680px;
            line-height: 1.7;
        }

        /* Ranking Cards Grid */
        .ranking-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
            margin-bottom: 20px;
        }

        .ranking-card {
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 22px 20px;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .ranking-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: rgba(31, 111, 229, 0.2);
        }

        .ranking-card .card-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 14px;
            gap: 10px;
        }

        .ranking-card .card-header h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--ink);
            letter-spacing: 0.3px;
        }

        .ranking-card .card-tag {
            background: var(--accent-soft);
            color: var(--accent-deep);
            font-size: 0.7rem;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: 999px;
            white-space: nowrap;
            letter-spacing: 0.5px;
        }

        .rank-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }

        .rank-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 12px;
            background: var(--bg);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .rank-item:hover {
            background: var(--primary-soft);
            border-color: rgba(31, 111, 229, 0.15);
        }

        .rank-num {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            font-weight: 800;
            flex-shrink: 0;
        }

        .rank-item:nth-child(1) .rank-num {
            background: #f59e0b;
        }
        .rank-item:nth-child(2) .rank-num {
            background: #94a3b8;
        }
        .rank-item:nth-child(3) .rank-num {
            background: #b45309;
        }

        .rank-name {
            flex: 1;
            font-weight: 600;
            color: var(--ink-light);
            font-size: 0.92rem;
        }

        .rank-value {
            font-weight: 700;
            color: var(--primary);
            font-size: 0.9rem;
            white-space: nowrap;
        }

        /* View more */
        .view-more-wrap {
            text-align: center;
            padding: 8px 0 20px;
        }

        /* Recommended articles */
        .recommend-section {
            padding: 28px 0 16px;
        }

        .recommend-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 18px;
        }

        .recommend-card {
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .recommend-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: rgba(31, 111, 229, 0.2);
        }

        .recommend-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }

        .recommend-card .card-body {
            padding: 16px 18px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .recommend-card .date {
            font-size: 0.75rem;
            color: var(--faint);
            letter-spacing: 0.5px;
        }

        .recommend-card h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--ink);
            line-height: 1.5;
        }

        .recommend-card p {
            font-size: 0.85rem;
            color: var(--muted);
            line-height: 1.6;
            flex: 1;
        }

        .recommend-card .read-link {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--primary);
        }

        .recommend-card .read-link:hover {
            color: var(--accent);
        }

        /* Stats strip */
        .stats-strip {
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 24px 20px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 16px;
            margin: 20px 0;
        }

        .stat-item {
            text-align: center;
            padding: 8px;
        }

        .stat-item .stat-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            letter-spacing: -0.5px;
        }

        .stat-item .stat-label {
            font-size: 0.82rem;
            color: var(--muted);
            margin-top: 4px;
            letter-spacing: 0.5px;
        }

        /* Quick links */
        .quick-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 12px;
            padding: 8px 0;
        }

        .quick-link-card {
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 16px 18px;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
            color: var(--ink-light);
            box-shadow: var(--shadow-sm);
        }

        .quick-link-card:hover {
            border-color: var(--primary);
            background: var(--primary-soft);
            color: var(--primary);
            text-decoration: none;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .quick-link-card .icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            color: var(--primary);
            flex-shrink: 0;
            font-size: 1.1rem;
        }

        .quick-link-card span {
            font-weight: 600;
            font-size: 0.9rem;
        }

        /* FAQ Section */
        .faq-section {
            padding: 28px 0 16px;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 850px;
        }

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

        .faq-item:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(31, 111, 229, 0.2);
        }

        .faq-item summary {
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 600;
            color: var(--ink);
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            gap: 10px;
            list-style: none;
            position: relative;
        }

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

        .faq-item summary::after {
            content: "+";
            position: absolute;
            right: 20px;
            font-size: 1.3rem;
            font-weight: 400;
            color: var(--primary);
            transition: var(--transition);
        }

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

        .faq-item summary .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-weight: 800;
            font-size: 0.8rem;
            flex-shrink: 0;
        }

        .faq-item .faq-answer {
            padding: 0 20px 18px 58px;
            color: var(--muted);
            font-size: 0.9rem;
            line-height: 1.75;
        }

        /* Bottom CTA */
        .bottom-cta {
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 32px 24px;
            text-align: center;
            margin: 28px 0 12px;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 12px;
        }

        .bottom-cta h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--ink);
        }

        .bottom-cta p {
            color: var(--muted);
            font-size: 0.92rem;
            max-width: 520px;
        }

        /* Footer */
        .site-footer {
            background: #1e293b;
            color: #cbd5e1;
            padding: 48px 0 24px;
            margin-top: 32px;
        }

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

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

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

        .footer-brand .logo-mark {
            background: var(--accent);
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: #94a3b8;
            line-height: 1.7;
            max-width: 300px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .footer-col a {
            display: block;
            color: #94a3b8;
            font-size: 0.85rem;
            padding: 4px 0;
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: #fff;
            text-decoration: none;
        }

        .footer-bottom {
            border-top: 1px solid rgba(148, 163, 184, 0.2);
            padding-top: 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.8rem;
            color: #94a3b8;
        }

        .footer-bottom a {
            color: #cbd5e1;
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .main-nav a {
                padding: 8px 10px;
                font-size: 0.82rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            .main-nav {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--card);
                flex-direction: column;
                gap: 0;
                padding: 10px 20px 18px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                z-index: 199;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                width: 100%;
                padding: 12px 14px;
                font-size: 0.95rem;
                border-radius: var(--radius-sm);
                border-bottom: 1px solid var(--border-light);
            }
            .main-nav a:last-child {
                border-bottom: none;
            }
            .main-nav a.active::after {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .nav-cta {
                display: none;
            }
            .header-main {
                gap: 12px;
            }
            .page-header h1 {
                font-size: 1.6rem;
            }
            .ranking-grid {
                grid-template-columns: 1fr;
            }
            .recommend-grid {
                grid-template-columns: 1fr;
            }
            .stats-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
                padding: 18px 14px;
            }
            .quick-links {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
            .breadcrumb-wrap {
                padding: 14px 0 4px;
            }
            .announcement-bar {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
            .faq-item .faq-answer {
                padding: 0 16px 14px 16px;
            }
            .faq-item summary {
                padding: 14px 16px;
            }
        }

        @media (max-width: 480px) {
            body {
                font-size: 15px;
                padding-bottom: 40px;
            }
            .container {
                padding: 0 14px;
            }
            .page-header h1 {
                font-size: 1.35rem;
            }
            .section-title {
                font-size: 1.2rem;
            }
            .ranking-card {
                padding: 16px 14px;
            }
            .rank-item {
                padding: 8px 10px;
                gap: 8px;
            }
            .rank-value {
                font-size: 0.8rem;
            }
            .quick-links {
                grid-template-columns: 1fr;
            }
            .stats-strip .stat-number {
                font-size: 1.5rem;
            }
            .bottom-cta {
                padding: 24px 16px;
            }
            .btn {
                width: 100%;
            }
            .lecture-meta {
                font-size: 0.75rem;
            }
        }

/* roulang page: category7 */
:root {
            --primary: #1f6fe5;
            --primary-deep: #1a56c4;
            --primary-soft: #e8f0fe;
            --accent: #f97316;
            --accent-deep: #dc5e0a;
            --accent-soft: #fff1e6;
            --ink: #1e293b;
            --ink-light: #334155;
            --muted: #64748b;
            --faint: #94a3b8;
            --bg: #f5f7fb;
            --card: #ffffff;
            --border: #e2e8f0;
            --border-light: rgba(226, 232, 240, 0.8);
            --shadow-sm: 0 2px 8px rgba(30, 41, 59, 0.04);
            --shadow-md: 0 4px 16px rgba(30, 41, 59, 0.06);
            --shadow-lg: 0 12px 32px rgba(30, 41, 59, 0.1);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --font-base: 16px;
            --line-base: 1.75;
            --max-width: 1200px;
            --header-height: 64px;
            --transition: all 0.2s ease;
        }

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

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: var(--font-base);
            line-height: var(--line-base);
            color: var(--ink-light);
            background: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        a:hover {
            color: var(--accent);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

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

        /* Header & Navbar */
        .site-header {
            background: var(--card);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 200;
            box-shadow: var(--shadow-sm);
        }

        .header-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: var(--header-height);
            gap: 24px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--ink);
            letter-spacing: 0.5px;
            white-space: nowrap;
            transition: var(--transition);
        }

        .logo:hover {
            color: var(--primary);
            text-decoration: none;
        }

        .logo-mark {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 900;
            flex-shrink: 0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }

        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--ink-light);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            transition: var(--transition);
            position: relative;
        }

        .main-nav a:hover {
            color: var(--primary);
            background: var(--primary-soft);
            text-decoration: none;
        }

        .main-nav a.active {
            color: var(--primary);
            font-weight: 700;
        }

        .main-nav a.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 4px;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 8px 10px;
            cursor: pointer;
            transition: var(--transition);
        }

        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--ink);
            border-radius: 2px;
            transition: var(--transition);
        }

        .hamburger:hover {
            background: var(--primary-soft);
            border-color: var(--primary);
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 600;
            cursor: pointer;
            border: 1px solid transparent;
            transition: var(--transition);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.3px;
            min-height: 40px;
        }

        .btn:hover {
            text-decoration: none;
        }

        .btn:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .btn:active {
            transform: translateY(1px);
        }

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

        .btn-primary:hover {
            background: var(--accent-deep);
            color: #ffffff;
        }

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

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

        .btn-sm {
            padding: 8px 16px;
            font-size: 0.85rem;
            min-height: 36px;
        }

        /* Breadcrumb */
        .breadcrumb-section {
            padding: 28px 0 16px;
            background: transparent;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--muted);
            flex-wrap: wrap;
        }

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

        .breadcrumb a:hover {
            color: var(--primary);
            text-decoration: none;
        }

        .breadcrumb .separator {
            color: var(--faint);
            user-select: none;
        }

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

        /* Page Header */
        .page-header {
            padding: 8px 0 24px;
        }

        .page-header h1 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--ink);
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .page-header .subtitle {
            font-size: 1.05rem;
            color: var(--muted);
            max-width: 760px;
            line-height: 1.8;
        }

        /* Section Common */
        .section {
            padding: 32px 0;
        }

        .section-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 20px;
            line-height: 1.4;
        }

        .section-subtitle {
            font-size: 0.95rem;
            color: var(--muted);
            margin-bottom: 24px;
            line-height: 1.7;
        }

        /* Analysis Article List */
        .analysis-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .analysis-card {
            display: grid;
            grid-template-columns: 1fr 240px;
            gap: 24px;
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .analysis-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border);
        }

        .analysis-card-content {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .analysis-card .meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--faint);
            flex-wrap: wrap;
        }

        .analysis-card .meta .tag {
            background: var(--primary-soft);
            color: var(--primary);
            padding: 3px 10px;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.75rem;
        }

        .analysis-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--ink);
            line-height: 1.45;
        }

        .analysis-card h3 a {
            color: var(--ink);
            transition: var(--transition);
        }

        .analysis-card h3 a:hover {
            color: var(--primary);
            text-decoration: none;
        }

        .analysis-card .excerpt {
            font-size: 0.95rem;
            color: var(--muted);
            line-height: 1.75;
            flex: 1;
        }

        .analysis-card .read-more {
            align-self: flex-start;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .analysis-card .read-more:hover {
            color: var(--accent);
            text-decoration: none;
        }

        .analysis-card .card-image {
            width: 240px;
            height: 160px;
            overflow: hidden;
            border-radius: var(--radius-md);
            align-self: center;
        }

        .analysis-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

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

        /* More Button */
        .more-wrapper {
            text-align: center;
            margin-top: 16px;
        }

        .btn-more {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .btn-more:hover {
            background: var(--primary-soft);
            color: var(--primary-deep);
            text-decoration: none;
        }

        /* Stats Strip */
        .stats-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
        }

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

        .stat-item .stat-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .stat-item .stat-label {
            font-size: 0.85rem;
            color: var(--muted);
            margin-top: 4px;
        }

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

        .recommend-card {
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .recommend-card:hover {
            box-shadow: var(--shadow-md);
        }

        .recommend-card .rec-image {
            height: 140px;
            overflow: hidden;
        }

        .recommend-card .rec-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .recommend-card .rec-image img:hover {
            transform: scale(1.03);
        }

        .recommend-card .rec-body {
            padding: 16px 18px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex: 1;
        }

        .recommend-card .rec-body h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--ink);
            line-height: 1.4;
        }

        .recommend-card .rec-body h4 a {
            color: var(--ink);
            transition: var(--transition);
        }

        .recommend-card .rec-body h4 a:hover {
            color: var(--primary);
            text-decoration: none;
        }

        .recommend-card .rec-body .rec-desc {
            font-size: 0.85rem;
            color: var(--muted);
            line-height: 1.6;
            flex: 1;
        }

        .recommend-card .rec-body .rec-meta {
            font-size: 0.78rem;
            color: var(--faint);
        }

        /* Trend Section */
        .trend-box {
            background: var(--card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-sm);
        }

        .trend-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-top: 16px;
        }

        .trend-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding-bottom: 14px;
            border-bottom: 1px solid var(--border-light);
        }

        .trend-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .trend-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
            margin-top: 8px;
        }

        .trend-item p {
            font-size: 0.95rem;
            color: var(--ink-light);
            line-height: 1.7;
        }

        .trend-item .trend-highlight {
            color: var(--primary);
            font-weight: 600;
        }

        /* Bottom CTA */
        .bottom-cta {
            background: var(--primary-soft);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            text-align: center;
            border: 1px solid rgba(31, 111, 229, 0.15);
        }

        .bottom-cta h2 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .bottom-cta p {
            font-size: 0.95rem;
            color: var(--muted);
            margin-bottom: 20px;
            line-height: 1.7;
        }

        .bottom-cta .btn-group {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* Footer */
        .site-footer {
            background: #1e293b;
            color: #e2e8f0;
            padding: 48px 0 24px;
            margin-top: 48px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand .logo {
            color: #ffffff;
            font-size: 1.2rem;
            margin-bottom: 12px;
        }

        .footer-brand .logo .logo-mark {
            background: var(--primary);
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: #94a3b8;
            line-height: 1.7;
        }

        .footer-col h4 {
            color: #ffffff;
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .footer-col a {
            display: block;
            color: #94a3b8;
            font-size: 0.85rem;
            padding: 4px 0;
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: #ffffff;
            text-decoration: none;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid rgba(148, 163, 184, 0.2);
            font-size: 0.8rem;
            color: #64748b;
        }

        .footer-bottom a {
            color: #94a3b8;
            transition: var(--transition);
        }

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

        /* Mobile Nav */
        @media (max-width: 992px) {
            .main-nav {
                display: none;
                flex-direction: column;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--card);
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                padding: 12px 20px;
                gap: 2px;
                z-index: 199;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                width: 100%;
                padding: 12px 14px;
                font-size: 0.95rem;
                border-radius: var(--radius-sm);
            }
            .main-nav a.active::after {
                display: none;
            }
            .main-nav a.active {
                background: var(--primary-soft);
            }
            .hamburger {
                display: flex;
            }
            .nav-cta {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .page-header h1 {
                font-size: 1.6rem;
            }
            .analysis-card {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .analysis-card .card-image {
                width: 100%;
                height: 180px;
                order: -1;
            }
            .stats-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .recommend-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .section {
                padding: 24px 0;
            }
            .bottom-cta {
                padding: 24px 18px;
            }
            .bottom-cta h2 {
                font-size: 1.2rem;
            }
        }

        @media (max-width: 520px) {
            body {
                font-size: 15px;
            }
            .page-header h1 {
                font-size: 1.4rem;
            }
            .stats-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
                padding: 16px 12px;
            }
            .stat-item .stat-number {
                font-size: 1.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .analysis-card {
                padding: 16px;
            }
            .analysis-card h3 {
                font-size: 1.05rem;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .bottom-cta .btn-group {
                flex-direction: column;
            }
            .bottom-cta .btn-group .btn {
                width: 100%;
            }
            .recommend-card .rec-image {
                height: 160px;
            }
        }