/* roulang page: index */
:root {
            --brand-primary: #FF5A2A;
            --brand-secondary: #D92D20;
            --brand-dark: #18181B;
            --bg-main: #F7F5F2;
            --card-bg: #FFFFFF;
            --accent-gold: #F59E0B;
            --accent-cyan: #22D3EE;
            --text-primary: #2B2B2E;
            --text-secondary: #55555A;
            --text-muted: #8B8B90;
            --border-color: #E8E4DF;
            --radius-card: 20px;
            --radius-hero-card: 24px;
            --radius-btn: 24px;
            --radius-input: 16px;
            --shadow-card: 0 6px 24px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 14px 40px rgba(0, 0, 0, 0.10);
            --shadow-cta: 0 8px 20px rgba(255, 90, 42, 0.28);
            --font-brand: "PingFang SC Semibold", "Noto Sans SC Bold", sans-serif;
            --font-body: "PingFang SC Regular", "Noto Sans SC Regular", "Microsoft YaHei", sans-serif;
            --font-mono: "Roboto Mono", "SFMono-Regular", monospace;
            --transition-base: 0.25s ease;
            --container-max: 1200px;
            --section-space: 72px;
        }

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

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

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--bg-main);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        summary:focus-visible {
            outline: 2px solid var(--brand-primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

        button {
            font-family: var(--font-body);
            cursor: pointer;
            border: none;
            background: none;
        }

        input {
            font-family: var(--font-body);
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        main {
            flex: 1;
            padding-bottom: var(--section-space);
        }

        section {
            padding: var(--section-space) 0;
            position: relative;
        }

        .section-sm {
            padding: 48px 0;
        }

        .section-alt {
            background-color: transparent;
        }

        .section-dark {
            background-color: var(--brand-dark);
            color: #fff;
        }

        .section-dark .section-sub {
            color: #c9c9ce;
        }

        .section-heading {
            margin-bottom: 36px;
            position: relative;
        }

        .section-heading h2 {
            font-family: var(--font-brand);
            font-size: 30px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--text-primary);
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .section-dark .section-heading h2 {
            color: #fff;
        }

        .section-heading h2::after {
            content: '';
            display: block;
            width: 40px;
            height: 4px;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            border-radius: 2px;
            margin-top: 16px;
        }

        .section-sub {
            color: var(--text-secondary);
            font-size: 17px;
            max-width: 680px;
            line-height: 1.75;
        }

        /* ========== HEADER & NAV ========== */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
        }

        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 16px 0;
            flex-wrap: wrap;
        }

        .brand-logo a {
            font-family: var(--font-brand);
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

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

        .brand-logo .logo-mark {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .header-search {
            flex: 1;
            max-width: 360px;
            min-width: 180px;
            position: relative;
        }

        .header-search input {
            width: 100%;
            height: 44px;
            border-radius: 22px;
            border: 1px solid var(--border-color);
            background: var(--bg-main);
            padding: 0 42px 0 18px;
            font-size: 14px;
            color: var(--text-primary);
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .header-search input:focus {
            outline: none;
            border-color: var(--brand-primary);
            box-shadow: 0 0 0 3px rgba(255, 90, 42, 0.15);
            background: #fff;
        }

        .header-search .search-icon {
            position: absolute;
            right: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 15px;
            pointer-events: none;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            border-radius: var(--radius-btn);
            padding: 12px 24px;
            transition: all var(--transition-base);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            color: #fff;
            box-shadow: var(--shadow-cta);
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, #e94d1f, #c0261a);
            box-shadow: 0 10px 28px rgba(255, 90, 42, 0.38);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-cta);
        }

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

        .btn-outline:hover {
            border-color: var(--brand-primary);
            color: var(--brand-primary);
            background: rgba(255, 90, 42, 0.04);
        }

        .btn-sm {
            padding: 9px 18px;
            font-size: 14px;
            border-radius: 20px;
        }

        .btn-lg {
            padding: 15px 32px;
            font-size: 16px;
            border-radius: 28px;
        }

        .btn-text-arrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 14px;
            color: var(--brand-secondary);
        }

        .btn-text-arrow .arrow {
            transition: transform var(--transition-base);
            font-size: 16px;
        }

        .btn-text-arrow:hover .arrow {
            transform: translateX(4px);
        }

        .btn-text-arrow:hover {
            color: var(--brand-primary);
        }

        .header-nav-row {
            border-top: 1px solid var(--border-color);
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border-color) transparent;
            position: relative;
        }

        .header-nav-row::-webkit-scrollbar {
            height: 4px;
        }

        .header-nav-row::-webkit-scrollbar-track {
            background: transparent;
        }

        .header-nav-row::-webkit-scrollbar-thumb {
            background: var(--border-color);
            border-radius: 4px;
        }

        .nav-tabs {
            display: flex;
            gap: 8px;
            padding: 10px 0;
            min-width: max-content;
            list-style: none;
        }

        .nav-tabs li a {
            display: inline-block;
            padding: 8px 20px;
            border-radius: 22px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            background: #fff;
            border: 1px solid var(--border-color);
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .nav-tabs li a:hover {
            border-color: var(--brand-primary);
            color: var(--brand-primary);
            background: rgba(255, 90, 42, 0.04);
        }

        .nav-tabs li a.active {
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            color: #fff;
            border-color: transparent;
            font-weight: 600;
        }

        .nav-scroll-mask {
            position: absolute;
            right: 0;
            top: 0;
            bottom: 0;
            width: 40px;
            background: linear-gradient(to right, transparent, #fff);
            pointer-events: none;
            display: none;
        }

        .header-nav-row.has-scroll .nav-scroll-mask {
            display: block;
        }

        /* ========== HERO ========== */
        .hero {
            padding: 64px 0 56px;
            background: linear-gradient(165deg, rgba(24, 24, 27, 0.93) 0%, rgba(217, 45, 32, 0.68) 100%), url('/assets/images/5dd4fb2665e7bd02.png') center/cover no-repeat;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -60px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(255, 90, 42, 0.4) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-content h1 {
            font-family: var(--font-brand);
            font-size: 40px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: 0.5px;
            margin-bottom: 18px;
        }

        .hero-content .hero-sub {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.88);
            margin-bottom: 28px;
            max-width: 520px;
        }

        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 32px;
        }

        .hero-cta-group .btn-outline {
            border-color: rgba(255, 255, 255, 0.4);
            color: #fff;
            background: transparent;
        }

        .hero-cta-group .btn-outline:hover {
            border-color: #fff;
            color: var(--brand-primary);
            background: #fff;
        }

        .hero-kpi-row {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }

        .hero-kpi {
            display: flex;
            flex-direction: column;
        }

        .hero-kpi .kpi-number {
            font-family: var(--font-mono);
            font-size: 28px;
            font-weight: 700;
            color: var(--accent-gold);
            line-height: 1.2;
        }

        .hero-kpi .kpi-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            letter-spacing: 0.5px;
        }

        .hero-visual {
            position: relative;
            transform: rotate(-1.5deg);
            border-radius: var(--radius-hero-card);
            overflow: hidden;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            min-height: 320px;
        }

        .hero-visual img {
            width: 100%;
            height: 100%;
            min-height: 320px;
            object-fit: cover;
            border-radius: var(--radius-hero-card);
        }

        .hero-visual .hero-visual-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 24px;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.75), transparent);
            border-radius: 0 0 var(--radius-hero-card) var(--radius-hero-card);
            display: flex;
            gap: 16px;
            align-items: center;
        }

        .hero-visual .live-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent-cyan);
            box-shadow: 0 0 12px rgba(34, 211, 238, 0.8);
            animation: pulse-dot 1.6s ease-in-out infinite;
        }

        .hero-visual .overlay-text {
            color: #fff;
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.5px;
        }

        @keyframes pulse-dot {
            0%, 100% {
                opacity: 1;
                box-shadow: 0 0 12px rgba(34, 211, 238, 0.8);
            }
            50% {
                opacity: 0.5;
                box-shadow: 0 0 20px rgba(34, 211, 238, 0.4);
            }
        }

        /* ========== CARDS GRID COMMON ========== */
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }

        .card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--brand-primary);
        }

        .card h3 {
            font-family: var(--font-brand);
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.35;
        }

        .card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .card .card-meta {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 12px;
        }

        .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 16px;
            background: rgba(255, 90, 42, 0.08);
            color: var(--brand-primary);
        }

        .card-cover {
            width: 100%;
            border-radius: 14px;
            margin-bottom: 16px;
            object-fit: cover;
            aspect-ratio: 16/9;
        }

        /* ========== PAIN POINTS ========== */
        .pain-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .pain-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }

        .pain-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--brand-secondary);
        }

        .pain-card .pain-num {
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 700;
            color: var(--brand-primary);
            margin-bottom: 12px;
            letter-spacing: 1px;
        }

        .pain-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }

        .pain-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== SOLUTION CARDS ========== */
        .solution-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .solution-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }

        .solution-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--accent-gold);
        }

        .solution-card .card-body {
            padding: 24px 24px 20px;
        }

        .solution-card h3 {
            font-size: 19px;
            margin-bottom: 8px;
        }

        .solution-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

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

        .step-item {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
            text-align: left;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            position: relative;
        }

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

        .step-num {
            font-family: var(--font-mono);
            font-size: 38px;
            font-weight: 700;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 12px;
            line-height: 1;
        }

        .step-item h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .step-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* ========== DATA BADGES ========== */
        .badges-row {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: flex-start;
        }

        .badge-circle {
            min-width: 120px;
            min-height: 120px;
            border-radius: 50%;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            color: #fff;
            padding: 20px;
            text-align: center;
            box-shadow: var(--shadow-cta);
            transition: transform var(--transition-base);
        }

        .badge-circle:hover {
            transform: scale(1.05);
        }

        .badge-circle .badge-number {
            font-family: var(--font-mono);
            font-size: 30px;
            font-weight: 700;
            line-height: 1.2;
        }

        .badge-circle .badge-label {
            font-size: 13px;
            opacity: 0.92;
            letter-spacing: 0.5px;
        }

        .badge-dark {
            background: var(--brand-dark);
            color: #fff;
            box-shadow: 0 8px 24px rgba(24, 24, 27, 0.3);
        }

        .badge-gold {
            background: linear-gradient(135deg, #F59E0B, #D97706);
            color: #fff;
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.3);
        }

        .badge-capsule {
            min-width: 120px;
            padding: 18px 28px;
            border-radius: 50px;
            display: flex;
            flex-direction: column;
            align-items: center;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: #fff;
        }

        .badge-capsule .badge-number {
            font-family: var(--font-mono);
            font-size: 28px;
            font-weight: 700;
        }

        /* ========== CATEGORY ENTRY ========== */
        .category-entry-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .category-entry-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            display: block;
            color: var(--text-primary);
        }

        .category-entry-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--brand-primary);
            color: var(--text-primary);
        }

        .category-entry-card .entry-img-wrap {
            aspect-ratio: 16/7;
            overflow: hidden;
            background: var(--bg-main);
        }

        .category-entry-card .entry-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }

        .category-entry-card:hover .entry-img-wrap img {
            transform: scale(1.04);
        }

        .category-entry-card .entry-body {
            padding: 20px 24px 22px;
        }

        .category-entry-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .category-entry-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 12px;
        }

        .category-entry-card .entry-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--brand-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .category-entry-card .entry-link .arrow {
            transition: transform var(--transition-base);
        }

        .category-entry-card:hover .entry-link .arrow {
            transform: translateX(4px);
        }

        /* ========== TESTIMONIALS ========== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .testimonial-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            position: relative;
        }

        .testimonial-card:nth-child(odd) {
            margin-top: 20px;
        }

        .testimonial-card:nth-child(even) {
            margin-top: -20px;
        }

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

        .testimonial-card .quote-mark {
            font-size: 40px;
            color: var(--brand-primary);
            opacity: 0.25;
            line-height: 1;
            margin-bottom: 8px;
            font-family: serif;
        }

        .testimonial-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .testimonial-card .testimonial-author {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .testimonial-card .author-badge {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 12px;
            background: rgba(255, 90, 42, 0.08);
            color: var(--brand-primary);
            font-size: 12px;
            font-weight: 600;
        }

        /* ========== AUDIENCE PILLS ========== */
        .audience-pills {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .audience-pill {
            display: inline-block;
            padding: 10px 22px;
            border-radius: 50px;
            background: #fff;
            border: 1px solid var(--border-color);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            transition: all var(--transition-base);
        }

        .audience-pill:hover {
            border-color: var(--brand-primary);
            color: var(--brand-primary);
            background: rgba(255, 90, 42, 0.04);
            transform: translateY(-2px);
        }

        /* ========== BRAND INTRO ========== */
        .brand-intro-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .brand-intro-text p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 16px;
        }

        .brand-intro-text p:last-child {
            margin-bottom: 0;
        }

        .brand-intro-img {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .brand-intro-img img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
        }

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

        .news-item {
            display: grid;
            grid-template-columns: 88px 1fr auto;
            gap: 20px;
            padding: 22px 0;
            border-bottom: 1px dashed var(--border-color);
            align-items: start;
            transition: background var(--transition-base);
        }

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

        .news-item:hover {
            background: rgba(255, 255, 255, 0.6);
            border-radius: 12px;
            padding-left: 12px;
            padding-right: 12px;
        }

        .news-date {
            font-family: var(--font-mono);
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 600;
            white-space: nowrap;
            padding-top: 4px;
        }

        .news-content h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .news-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        .news-action {
            padding-top: 4px;
        }

        /* ========== DATA METRICS SECTION ========== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .metric-card {
            background: var(--brand-dark);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            text-align: center;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.2);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .metric-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--brand-primary), var(--accent-gold), var(--brand-secondary));
            border-radius: 0 0 4px 4px;
        }

        .metric-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
        }

        .metric-card .metric-number {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 8px;
            line-height: 1.2;
        }

        .metric-card .metric-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            letter-spacing: 0.5px;
        }

        .metric-card .metric-desc {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 8px;
            line-height: 1.5;
        }

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

        .faq-item {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 16px;
            overflow: hidden;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

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

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

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

        .faq-item summary:hover {
            background: rgba(255, 90, 42, 0.03);
        }

        .faq-item summary .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(255, 90, 42, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand-primary);
            font-size: 18px;
            font-weight: 700;
            transition: transform var(--transition-base);
        }

        .faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
            background: rgba(255, 90, 42, 0.2);
        }

        .faq-item .faq-answer {
            padding: 0 24px 20px;
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            border-radius: var(--radius-hero-card);
            padding: 48px 40px;
            color: #fff;
            text-align: center;
            box-shadow: 0 16px 48px rgba(255, 90, 42, 0.35);
        }

        .cta-section h2 {
            font-family: var(--font-brand);
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.9);
            max-width: 560px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }

        .cta-section .btn-primary {
            background: #fff;
            color: var(--brand-secondary);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
        }

        .cta-section .btn-primary:hover {
            background: #f5f0e8;
            transform: translateY(-2px);
        }

        .cta-form {
            max-width: 480px;
            margin: 20px auto 0;
            display: flex;
            gap: 12px;
        }

        .cta-form input {
            flex: 1;
            height: 48px;
            border-radius: var(--radius-input);
            border: 1px solid rgba(255, 255, 255, 0.35);
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            padding: 0 18px;
            font-size: 15px;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.7);
        }

        .cta-form input:focus {
            outline: none;
            border-color: #fff;
            box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.22);
        }

        .cta-form .btn {
            height: 48px;
            border-radius: var(--radius-input);
            background: #fff;
            color: var(--brand-secondary);
            padding: 0 28px;
            font-weight: 600;
        }

        .cta-form .btn:hover {
            background: #f5f0e8;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--brand-dark);
            color: #fff;
            padding: 48px 0 28px;
            margin-top: 0;
        }

        .footer-top {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            justify-content: space-between;
            align-items: flex-start;
            margin-bottom: 36px;
        }

        .footer-brand a {
            font-family: var(--font-brand);
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
        }

        .footer-brand p {
            font-size: 14px;
            color: #a0a0a8;
            margin-top: 8px;
            max-width: 280px;
            line-height: 1.6;
        }

        .footer-links {
            display: flex;
            gap: 48px;
            flex-wrap: wrap;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: #a0a0a8;
            margin-bottom: 8px;
            transition: color var(--transition-base);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: #a0a0a8;
        }

        .footer-bottom a {
            color: #a0a0a8;
            text-decoration: none;
            transition: color var(--transition-base);
        }

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

        .footer-bottom .footer-sep {
            margin: 0 4px;
            color: #55555a;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            :root {
                --section-space: 56px;
            }

            .hero-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .hero-content h1 {
                font-size: 32px;
            }

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

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

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

            .header-top {
                flex-wrap: wrap;
                gap: 12px;
            }

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

        @media (max-width: 768px) {
            .hero {
                padding: 40px 0 44px;
            }

            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

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

            .hero-visual {
                transform: rotate(0);
                min-height: 240px;
            }

            .hero-visual img {
                min-height: 240px;
            }

            .pain-grid,
            .solution-grid,
            .category-entry-grid,
            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
            }

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

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

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

            .testimonial-card:nth-child(odd),
            .testimonial-card:nth-child(even) {
                margin-top: 0;
            }

            .brand-intro-wrap {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .news-item {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .news-date {
                padding-top: 0;
            }

            .cta-section {
                padding: 32px 20px;
                border-radius: var(--radius-card);
            }

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

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

            .footer-top {
                flex-direction: column;
                gap: 24px;
            }

            .footer-links {
                gap: 24px;
            }

            .header-actions .btn {
                padding: 10px 18px;
                font-size: 14px;
            }

            .hero-cta-group {
                flex-direction: column;
            }

            .hero-cta-group .btn {
                width: 100%;
            }
        }

        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }

            :root {
                --section-space: 44px;
            }

            .section-heading h2 {
                font-size: 22px;
            }

            .header-top {
                padding: 12px 0;
                gap: 8px;
            }

            .brand-logo a {
                font-size: 18px;
            }

            .brand-logo .logo-mark {
                width: 30px;
                height: 30px;
                font-size: 15px;
                border-radius: 8px;
            }

            .header-actions .btn {
                padding: 8px 14px;
                font-size: 13px;
                border-radius: 18px;
            }

            .header-search input {
                height: 40px;
                font-size: 13px;
            }

            .nav-tabs li a {
                padding: 7px 14px;
                font-size: 13px;
            }

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

            .hero-content .hero-sub {
                font-size: 15px;
            }

            .card {
                padding: 20px;
            }

            .pain-card,
            .solution-card .card-body,
            .step-item {
                padding: 20px;
            }

            .badges-row {
                gap: 12px;
            }

            .badge-circle {
                min-width: 90px;
                min-height: 90px;
                padding: 14px;
            }

            .badge-circle .badge-number {
                font-size: 24px;
            }

            .badge-circle .badge-label {
                font-size: 12px;
            }

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

            .metric-card {
                padding: 20px 16px;
            }

            .metric-card .metric-number {
                font-size: 26px;
            }

            .faq-item summary {
                font-size: 16px;
                padding: 15px 18px;
            }

            .faq-item .faq-answer {
                padding: 0 18px 16px;
                font-size: 15px;
            }

            .cta-section h2 {
                font-size: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

/* roulang page: category3 */
:root {
            --brand-primary: #FF5A2A;
            --brand-secondary: #D92D20;
            --brand-dark: #18181B;
            --bg-main: #F7F5F2;
            --card-bg: #FFFFFF;
            --accent-gold: #F59E0B;
            --accent-cyan: #22D3EE;
            --text-primary: #2B2B2E;
            --text-secondary: #55555A;
            --text-muted: #8B8B90;
            --border-color: #E8E4DF;
            --radius-card: 20px;
            --radius-hero-card: 24px;
            --radius-btn: 24px;
            --radius-input: 16px;
            --shadow-card: 0 6px 24px rgba(0,0,0,0.06);
            --shadow-card-hover: 0 14px 40px rgba(0,0,0,0.10);
            --shadow-cta: 0 8px 20px rgba(255,90,42,0.28);
            --font-brand: "PingFang SC Semibold","Noto Sans SC Bold",sans-serif;
            --font-body: "PingFang SC Regular","Noto Sans SC Regular","Microsoft YaHei",sans-serif;
            --font-mono: "Roboto Mono","SFMono-Regular",monospace;
            --transition-base: 0.25s ease;
            --container-max: 1200px;
            --section-space: 56px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--bg-main);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--brand-secondary);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--brand-primary);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        summary:focus-visible {
            outline: 2px solid var(--brand-primary);
            outline-offset: 3px;
            border-radius: 4px;
        }
        button {
            font-family: var(--font-body);
            cursor: pointer;
            border: none;
            background: none;
        }
        input {
            font-family: var(--font-body);
        }
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        main {
            flex: 1;
            padding-bottom: var(--section-space);
        }
        section {
            padding: var(--section-space) 0;
            position: relative;
        }
        .section-sm {
            padding: 40px 0;
        }
        .section-heading {
            margin-bottom: 36px;
            position: relative;
        }
        .section-heading h2 {
            font-family: var(--font-brand);
            font-size: 30px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--text-primary);
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .section-heading h2::after {
            content: '';
            display: block;
            width: 40px;
            height: 4px;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            border-radius: 2px;
            margin-top: 16px;
        }
        .section-sub {
            color: var(--text-secondary);
            font-size: 17px;
            max-width: 680px;
            line-height: 1.75;
        }

        /* ========== HEADER & NAV ========== */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0,0,0,0.08);
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 16px 0;
            flex-wrap: wrap;
        }
        .brand-logo a {
            font-family: var(--font-brand);
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .brand-logo a:hover {
            color: var(--brand-primary);
        }
        .brand-logo .logo-mark {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .header-search {
            flex: 1;
            max-width: 360px;
            min-width: 180px;
            position: relative;
        }
        .header-search input {
            width: 100%;
            height: 44px;
            border-radius: 22px;
            border: 1px solid var(--border-color);
            background: var(--bg-main);
            padding: 0 42px 0 18px;
            font-size: 14px;
            color: var(--text-primary);
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }
        .header-search input:focus {
            outline: none;
            border-color: var(--brand-primary);
            box-shadow: 0 0 0 3px rgba(255,90,42,0.15);
        }
        .header-search .search-icon {
            position: absolute;
            right: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 18px;
            pointer-events: none;
        }
        .header-actions .btn {
            white-space: nowrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            padding: 12px 24px;
            font-size: 15px;
            transition: all var(--transition-base);
            text-decoration: none;
            letter-spacing: 0.3px;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            color: #fff;
            box-shadow: var(--shadow-cta);
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, #e84d22, #c4261a);
            box-shadow: 0 10px 26px rgba(255,90,42,0.35);
            transform: translateY(-1px);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-primary);
        }
        .btn-outline:hover {
            border-color: var(--brand-primary);
            color: var(--brand-primary);
            background: rgba(255,90,42,0.04);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 14px;
        }
        .btn-lg {
            padding: 14px 28px;
            font-size: 16px;
        }
        .header-nav-row {
            position: relative;
            border-top: 1px solid var(--border-color);
            overflow: hidden;
        }
        .nav-tabs {
            display: flex;
            list-style: none;
            gap: 8px;
            padding: 10px 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border-color) transparent;
            position: relative;
        }
        .nav-tabs::-webkit-scrollbar {
            height: 4px;
        }
        .nav-tabs::-webkit-scrollbar-track {
            background: transparent;
        }
        .nav-tabs::-webkit-scrollbar-thumb {
            background: var(--border-color);
            border-radius: 2px;
        }
        .nav-tabs li {
            flex-shrink: 0;
        }
        .nav-tabs a {
            display: inline-block;
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
            background: var(--card-bg);
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .nav-tabs a:hover {
            color: var(--brand-primary);
            border-color: var(--brand-primary);
        }
        .nav-tabs a.active {
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            color: #fff;
            border-color: transparent;
            box-shadow: 0 4px 12px rgba(255,90,42,0.25);
        }
        .nav-scroll-mask {
            display: none;
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            padding: 20px 0 0;
            font-size: 14px;
            color: var(--text-muted);
        }
        .breadcrumb a {
            color: var(--text-muted);
        }
        .breadcrumb a:hover {
            color: var(--brand-primary);
        }
        .breadcrumb .sep {
            color: var(--border-color);
        }
        .breadcrumb .current {
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ========== PAGE HERO / H1 HEADER ========== */
        .page-hero {
            padding: 32px 0 12px;
            background: transparent;
        }
        .page-hero h1 {
            font-family: var(--font-brand);
            font-size: 38px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.25;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .page-hero .hero-lead {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.75;
        }

        /* ========== QUICK STEPS ========== */
        .quick-steps {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            margin-top: 32px;
            box-shadow: var(--shadow-card);
        }
        .quick-steps .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .quick-steps .step-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 16px;
            border-radius: 16px;
            background: var(--bg-main);
            border: 1px solid var(--border-color);
            transition: all var(--transition-base);
        }
        .quick-steps .step-item:hover {
            border-color: var(--brand-primary);
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }
        .quick-steps .step-num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .quick-steps .step-info h3 {
            font-family: var(--font-brand);
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .quick-steps .step-info p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* ========== GUIDE CARD GRID ========== */
        .guides-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            margin-top: 32px;
        }
        .guide-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border-color);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: var(--brand-primary);
        }
        .guide-card .guide-cover {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
        }
        .guide-card .guide-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .guide-card:hover .guide-cover img {
            transform: scale(1.03);
        }
        .guide-card .guide-cover .difficulty-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 4px 12px;
            border-radius: 12px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.5px;
            color: #fff;
            z-index: 1;
        }
        .difficulty-badge.easy {
            background: rgba(34,197,94,0.9);
        }
        .difficulty-badge.normal {
            background: rgba(245,158,11,0.9);
        }
        .difficulty-badge.hard {
            background: rgba(217,45,32,0.9);
        }
        .difficulty-badge.expert {
            background: rgba(24,24,27,0.88);
        }
        .guide-card .guide-body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-card .guide-body h3 {
            font-family: var(--font-brand);
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .guide-card .guide-body .guide-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 10px;
            font-family: var(--font-mono);
        }
        .guide-card .guide-body .guide-summary {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }
        .guide-card .guide-body .btn {
            align-self: flex-start;
        }
        .btn-text {
            background: none;
            color: var(--brand-secondary);
            padding: 4px 0;
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition-base);
            border-radius: 4px;
        }
        .btn-text .arrow {
            transition: transform var(--transition-base);
            font-size: 16px;
        }
        .btn-text:hover {
            color: var(--brand-primary);
        }
        .btn-text:hover .arrow {
            transform: translateX(4px);
        }

        /* ========== TAGS ========== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 28px;
        }
        .tag-pill {
            padding: 8px 18px;
            border-radius: 18px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            cursor: pointer;
            transition: all var(--transition-base);
            user-select: none;
        }
        .tag-pill:hover,
        .tag-pill.active {
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            color: #fff;
            border-color: transparent;
            box-shadow: 0 4px 12px rgba(255,90,42,0.22);
        }

        /* ========== SUBMISSION CTA ========== */
        .submission-card {
            background: linear-gradient(155deg, var(--brand-dark) 0%, #2a2a2e 55%, #3d1f1a 100%);
            border-radius: var(--radius-hero-card);
            padding: 40px 36px;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            border: 1px solid rgba(255,255,255,0.08);
        }
        .submission-card .sub-info h3 {
            font-family: var(--font-brand);
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 8px;
            color: #fff;
        }
        .submission-card .sub-info p {
            color: #c9c9ce;
            font-size: 15px;
            max-width: 480px;
            line-height: 1.7;
        }
        .submission-card .btn {
            flex-shrink: 0;
        }

        /* ========== RECOMMENDED READING ========== */
        .reading-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            margin-top: 28px;
        }
        .reading-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 20px 24px;
            border-bottom: 1px dashed var(--border-color);
            transition: background var(--transition-base);
            text-decoration: none;
            color: var(--text-primary);
        }
        .reading-item:last-child {
            border-bottom: none;
        }
        .reading-item:hover {
            background: rgba(255,90,42,0.03);
        }
        .reading-item .reading-date {
            font-family: var(--font-mono);
            font-size: 13px;
            color: var(--text-muted);
            min-width: 70px;
            flex-shrink: 0;
            padding-top: 2px;
        }
        .reading-item .reading-info h4 {
            font-family: var(--font-brand);
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
            line-height: 1.4;
        }
        .reading-item .reading-info p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ========== RELATED LINKS ========== */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 28px;
        }
        .related-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
            text-align: left;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            text-decoration: none;
            color: var(--text-primary);
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .related-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--brand-primary);
            color: var(--text-primary);
        }
        .related-card .related-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .related-card h4 {
            font-family: var(--font-brand);
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
        }
        .related-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--brand-dark);
            color: #c9c9ce;
            padding: 48px 0 24px;
            margin-top: 0;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.2fr 2fr;
            gap: 48px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand a {
            font-family: var(--font-brand);
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            display: inline-block;
            margin-bottom: 12px;
        }
        .footer-brand a:hover {
            color: var(--brand-primary);
        }
        .footer-brand p {
            font-size: 14px;
            color: #a1a1a8;
            line-height: 1.7;
            max-width: 360px;
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .footer-col h4 {
            font-family: var(--font-brand);
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: #a1a1a8;
            margin-bottom: 8px;
            transition: color var(--transition-base);
        }
        .footer-col a:hover {
            color: var(--brand-primary);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding-top: 20px;
            font-size: 13px;
            color: #8b8b90;
        }
        .footer-bottom a {
            color: #c9c9ce;
            font-size: 13px;
        }
        .footer-bottom a:hover {
            color: var(--brand-primary);
        }
        .footer-sep {
            margin: 0 8px;
            color: #55555a;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .guides-grid {
                grid-template-columns: 1fr 1fr;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-space: 40px;
            }
            .page-hero h1 {
                font-size: 30px;
            }
            .quick-steps .steps-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .guides-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .submission-card {
                flex-direction: column;
                text-align: left;
                align-items: flex-start;
                padding: 28px 24px;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .footer-links {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .header-top {
                gap: 12px;
            }
            .header-search {
                order: 3;
                max-width: 100%;
                flex-basis: 100%;
            }
        }
        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
            .page-hero h1 {
                font-size: 26px;
            }
            .section-heading h2 {
                font-size: 24px;
            }
            .reading-item {
                flex-direction: column;
                gap: 8px;
                padding: 16px 18px;
            }
            .reading-item .reading-date {
                min-width: auto;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .nav-tabs a {
                padding: 6px 14px;
                font-size: 13px;
            }
            .btn-lg {
                padding: 12px 20px;
                font-size: 15px;
            }
            .tag-pill {
                padding: 6px 14px;
                font-size: 13px;
            }
            .guide-card .guide-body {
                padding: 16px 18px 20px;
            }
        }

/* roulang page: category2 */
:root {
            --brand-primary: #FF5A2A;
            --brand-secondary: #D92D20;
            --brand-dark: #18181B;
            --bg-main: #F7F5F2;
            --card-bg: #FFFFFF;
            --accent-gold: #F59E0B;
            --accent-cyan: #22D3EE;
            --text-primary: #2B2B2E;
            --text-secondary: #55555A;
            --text-muted: #8B8B90;
            --border-color: #E8E4DF;
            --radius-card: 20px;
            --radius-hero-card: 24px;
            --radius-btn: 24px;
            --radius-input: 16px;
            --shadow-card: 0 6px 24px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 14px 40px rgba(0, 0, 0, 0.10);
            --shadow-cta: 0 8px 20px rgba(255, 90, 42, 0.28);
            --font-brand: "PingFang SC Semibold", "Noto Sans SC Bold", sans-serif;
            --font-body: "PingFang SC Regular", "Noto Sans SC Regular", "Microsoft YaHei", sans-serif;
            --font-mono: "Roboto Mono", "SFMono-Regular", monospace;
            --transition-base: 0.25s ease;
            --container-max: 1200px;
            --section-space: 72px;
        }

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

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--bg-main);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
        }

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

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

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        summary:focus-visible {
            outline: 2px solid var(--brand-primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

        button {
            font-family: var(--font-body);
            cursor: pointer;
            border: none;
            background: none;
        }

        input {
            font-family: var(--font-body);
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        main {
            flex: 1;
            padding-bottom: var(--section-space);
        }

        section {
            padding: var(--section-space) 0;
            position: relative;
        }

        .section-sm {
            padding: 48px 0;
        }

        .section-alt {
            background-color: transparent;
        }

        .section-dark {
            background-color: var(--brand-dark);
            color: #fff;
        }

        .section-dark .section-sub {
            color: #c9c9ce;
        }

        .section-heading {
            margin-bottom: 36px;
            position: relative;
        }

        .section-heading h2 {
            font-family: var(--font-brand);
            font-size: 30px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--text-primary);
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .section-dark .section-heading h2 {
            color: #fff;
        }

        .section-heading h2::after {
            content: '';
            display: block;
            width: 40px;
            height: 4px;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            border-radius: 2px;
            margin-top: 16px;
        }

        .section-sub {
            color: var(--text-secondary);
            font-size: 17px;
            max-width: 680px;
            line-height: 1.75;
        }

        /* ========== HEADER & NAV ========== */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
        }

        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 16px 0;
            flex-wrap: wrap;
        }

        .brand-logo a {
            font-family: var(--font-brand);
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

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

        .brand-logo .logo-mark {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .header-search {
            flex: 1;
            max-width: 360px;
            min-width: 180px;
            position: relative;
        }

        .header-search input {
            width: 100%;
            height: 44px;
            border-radius: 22px;
            border: 1px solid var(--border-color);
            background: var(--bg-main);
            padding: 0 42px 0 18px;
            font-size: 14px;
            color: var(--text-primary);
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .header-search input:focus {
            border-color: var(--brand-primary);
            box-shadow: 0 0 0 3px rgba(255, 90, 42, 0.15);
            outline: none;
        }

        .search-icon {
            position: absolute;
            right: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 20px;
            pointer-events: none;
        }

        .header-actions .btn {
            white-space: nowrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition-base);
            line-height: 1.4;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            color: #fff;
            box-shadow: var(--shadow-cta);
            border: none;
        }

        .btn-primary:hover {
            box-shadow: 0 10px 24px rgba(255, 90, 42, 0.35);
            transform: translateY(-1px);
            color: #fff;
        }

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

        .btn-secondary:hover {
            border-color: var(--brand-primary);
            color: var(--brand-primary);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }

        .header-nav-row {
            position: relative;
            overflow: hidden;
            padding-bottom: 8px;
        }

        .nav-tabs {
            display: flex;
            gap: 8px;
            list-style: none;
            flex-wrap: wrap;
            align-items: center;
            -webkit-overflow-scrolling: touch;
        }

        .nav-tabs li a {
            display: inline-block;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            border: 1px solid var(--border-color);
            background: #fff;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .nav-tabs li a:hover {
            border-color: var(--brand-primary);
            color: var(--brand-primary);
        }

        .nav-tabs li a.active {
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            color: #fff;
            border-color: transparent;
            box-shadow: 0 4px 12px rgba(255, 90, 42, 0.25);
        }

        .nav-scroll-mask {
            position: absolute;
            right: 0;
            top: 0;
            bottom: 8px;
            width: 40px;
            background: linear-gradient(to left, rgba(255,255,255,0.95), transparent);
            pointer-events: none;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--brand-dark);
            color: #e4e4e7;
            padding: 48px 0 24px;
            margin-top: auto;
        }

        .footer-top {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-brand {
            flex: 1 1 300px;
            max-width: 360px;
        }

        .footer-brand a {
            font-family: var(--font-brand);
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            display: inline-block;
            margin-bottom: 12px;
        }

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

        .footer-brand p {
            font-size: 14px;
            color: #b0b0b5;
            line-height: 1.7;
        }

        .footer-links {
            flex: 1 1 auto;
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
        }

        .footer-col {
            min-width: 120px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-col a {
            display: block;
            color: #b0b0b5;
            font-size: 14px;
            margin-bottom: 8px;
            transition: color var(--transition-base);
        }

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

        .footer-bottom {
            border-top: 1px solid #2f2f33;
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 14px;
            color: #8b8b90;
        }

        .footer-bottom a {
            color: #b0b0b5;
            text-decoration: none;
        }

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

        .footer-sep {
            margin: 0 8px;
        }

        /* ========== 本页特有样式 ========== */
        /* 头部区域 */
        .page-head {
            padding: 48px 0 32px;
        }

        .breadcrumb {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 12px;
        }

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

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

        .page-head h1 {
            font-family: var(--font-brand);
            font-size: 40px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .page-head .lead {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 700px;
            line-height: 1.75;
        }

        /* 数据筛选栏 */
        .filter-bar {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 16px 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            box-shadow: var(--shadow-card);
        }

        .filter-bar .filter-label {
            font-weight: 600;
            color: var(--text-primary);
            font-size: 15px;
            margin-right: 4px;
        }

        .filter-pills {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .filter-pill {
            padding: 6px 16px;
            border-radius: 20px;
            border: 1px solid var(--border-color);
            font-size: 14px;
            color: var(--text-secondary);
            background: #fff;
            transition: all var(--transition-base);
        }

        .filter-pill:hover,
        .filter-pill.active {
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            color: #fff;
            border-color: transparent;
            box-shadow: 0 4px 10px rgba(255, 90, 42, 0.2);
        }

        .filter-date {
            margin-left: auto;
            font-family: var(--font-mono);
            font-size: 14px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* 比分卡片网格 */
        .score-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }

        .score-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 20px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .score-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--brand-primary);
        }

        .score-card-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 14px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .league-tag {
            background: rgba(255, 90, 42, 0.08);
            color: var(--brand-primary);
            padding: 4px 10px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 12px;
        }

        .status-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            font-weight: 600;
            background: #f0f0f0;
            padding: 4px 10px;
            border-radius: 12px;
        }

        .status-tag.live {
            background: rgba(34, 211, 238, 0.12);
            color: #0891b2;
        }

        .status-tag.live .dot {
            width: 6px;
            height: 6px;
            background: var(--accent-cyan);
            border-radius: 50%;
            animation: pulse 1.5s infinite;
        }

        .status-tag.finished {
            background: #f0f0f0;
            color: var(--text-muted);
        }

        .score-match {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 16px;
            flex: 1;
        }

        .team {
            flex: 1;
            text-align: center;
            font-weight: 600;
            font-size: 16px;
            color: var(--text-primary);
        }

        .team:first-child {
            text-align: left;
        }

        .team:last-child {
            text-align: right;
        }

        .score-center {
            font-family: var(--font-mono);
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            min-width: 90px;
            text-align: center;
        }

        .score-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            justify-content: center;
            border-top: 1px dashed var(--border-color);
            padding-top: 12px;
        }

        .mini-badge {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--text-secondary);
            background: var(--bg-main);
            padding: 4px 8px;
            border-radius: 8px;
            white-space: nowrap;
        }

        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* 数据徽章汇总 */
        .data-summary {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
            gap: 20px;
        }

        .summary-badge {
            text-align: center;
            padding: 24px 16px;
            border-radius: var(--radius-card);
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }

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

        .summary-badge .badge-number {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 700;
            color: var(--brand-primary);
            line-height: 1.2;
        }

        .summary-badge .badge-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 8px;
        }

        .summary-badge.gold .badge-number {
            color: var(--accent-gold);
        }

        .summary-badge.dark .badge-number {
            color: var(--brand-dark);
        }

        /* 数据解读短文块 */
        .insight-block {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            align-items: center;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 32px;
            box-shadow: var(--shadow-card);
        }

        .insight-text {
            flex: 1 1 300px;
        }

        .insight-text h2 {
            font-family: var(--font-brand);
            font-size: 26px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .insight-text p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .insight-image {
            flex: 0 0 280px;
            max-width: 280px;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

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

        /* 订阅 CTA */
        .subscribe-box {
            background: linear-gradient(135deg, rgba(24,24,27,0.95), rgba(217,45,32,0.75));
            border-radius: var(--radius-card);
            padding: 40px 32px;
            color: #fff;
            text-align: center;
            box-shadow: var(--shadow-card);
        }

        .subscribe-box h2 {
            font-family: var(--font-brand);
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .subscribe-box p {
            font-size: 16px;
            color: rgba(255,255,255,0.85);
            max-width: 560px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 480px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .subscribe-form input {
            flex: 1 1 200px;
            height: 48px;
            border-radius: var(--radius-input);
            border: 1px solid rgba(255,255,255,0.2);
            background: rgba(255,255,255,0.95);
            padding: 0 18px;
            font-size: 15px;
            color: var(--text-primary);
            outline: none;
            transition: all var(--transition-base);
        }

        .subscribe-form input:focus {
            border-color: var(--brand-primary);
            box-shadow: 0 0 0 3px rgba(255, 90, 42, 0.3);
        }

        .subscribe-form .btn {
            height: 48px;
            padding: 0 28px;
            font-size: 16px;
        }

        /* 相关栏目入口 */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            gap: 16px;
        }

        .related-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 20px 16px;
            text-align: center;
            transition: all var(--transition-base);
            display: block;
            text-decoration: none;
            color: var(--text-primary);
            box-shadow: var(--shadow-card);
        }

        .related-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--brand-primary);
            color: var(--brand-primary);
        }

        .related-card .related-icon {
            font-size: 32px;
            margin-bottom: 12px;
        }

        .related-card .related-title {
            font-weight: 600;
            font-size: 16px;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .score-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .header-search {
                max-width: 240px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .page-head h1 {
                font-size: 32px;
            }
            .score-grid {
                grid-template-columns: 1fr;
            }
            .insight-block {
                flex-direction: column;
                align-items: stretch;
            }
            .insight-image {
                flex: 0 0 auto;
                max-width: 100%;
                order: -1;
            }
            .filter-bar {
                flex-direction: column;
                align-items: flex-start;
            }
            .filter-date {
                margin-left: 0;
            }
            .footer-top {
                flex-direction: column;
                gap: 24px;
            }
            .footer-links {
                gap: 20px;
            }
            .header-top {
                flex-wrap: wrap;
            }
            .header-search {
                order: 3;
                flex-basis: 100%;
                max-width: 100%;
            }
            .nav-tabs {
                flex-wrap: nowrap;
                overflow-x: auto;
                padding-bottom: 4px;
                -webkit-overflow-scrolling: touch;
                scrollbar-width: thin;
                scrollbar-color: var(--border-color) transparent;
            }
            .nav-tabs::-webkit-scrollbar {
                height: 4px;
            }
            .nav-tabs::-webkit-scrollbar-thumb {
                background: var(--border-color);
                border-radius: 4px;
            }
            .nav-scroll-mask {
                bottom: 4px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .page-head h1 {
                font-size: 28px;
            }
            .btn {
                padding: 8px 16px;
                font-size: 14px;
            }
            .score-center {
                font-size: 24px;
                min-width: 70px;
            }
            .data-summary {
                grid-template-columns: repeat(2, 1fr);
            }
            .subscribe-box {
                padding: 32px 20px;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form input,
            .subscribe-form .btn {
                width: 100%;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: center;
                text-align: center;
                gap: 8px;
            }
        }

/* roulang page: category1 */
:root {
            --brand-primary: #FF5A2A;
            --brand-secondary: #D92D20;
            --brand-dark: #18181B;
            --bg-main: #F7F5F2;
            --card-bg: #FFFFFF;
            --accent-gold: #F59E0B;
            --accent-cyan: #22D3EE;
            --text-primary: #2B2B2E;
            --text-secondary: #55555A;
            --text-muted: #8B8B90;
            --border-color: #E8E4DF;
            --radius-card: 20px;
            --radius-hero-card: 24px;
            --radius-btn: 24px;
            --radius-input: 16px;
            --shadow-card: 0 6px 24px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 14px 40px rgba(0, 0, 0, 0.10);
            --shadow-cta: 0 8px 20px rgba(255, 90, 42, 0.28);
            --font-brand: "PingFang SC Semibold", "Noto Sans SC Bold", sans-serif;
            --font-body: "PingFang SC Regular", "Noto Sans SC Regular", "Microsoft YaHei", sans-serif;
            --font-mono: "Roboto Mono", "SFMono-Regular", monospace;
            --transition-base: 0.25s ease;
            --container-max: 1200px;
            --section-space: 72px;
        }

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

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

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--bg-main);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        summary:focus-visible {
            outline: 2px solid var(--brand-primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

        button {
            font-family: var(--font-body);
            cursor: pointer;
            border: none;
            background: none;
        }

        input {
            font-family: var(--font-body);
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        main {
            flex: 1;
            padding-bottom: var(--section-space);
        }

        section {
            padding: var(--section-space) 0;
            position: relative;
        }

        .section-sm {
            padding: 48px 0;
        }

        .section-dark {
            background-color: var(--brand-dark);
            color: #fff;
        }

        .section-dark .section-sub {
            color: #c9c9ce;
        }

        .section-heading {
            margin-bottom: 36px;
            position: relative;
        }

        .section-heading h2 {
            font-family: var(--font-brand);
            font-size: 30px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--text-primary);
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .section-dark .section-heading h2 {
            color: #fff;
        }

        .section-heading h2::after {
            content: '';
            display: block;
            width: 40px;
            height: 4px;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            border-radius: 2px;
            margin-top: 16px;
        }

        .section-sub {
            color: var(--text-secondary);
            font-size: 17px;
            max-width: 680px;
            line-height: 1.75;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            padding: 12px 24px;
            transition: all var(--transition-base);
            text-align: center;
            line-height: 1.4;
            cursor: pointer;
            border: 1px solid transparent;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            color: #fff;
            box-shadow: var(--shadow-cta);
            border: none;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(255, 90, 42, 0.35);
            color: #fff;
        }

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

        .btn-outline:hover {
            border-color: var(--brand-primary);
            color: var(--brand-primary);
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }

        .btn-lg {
            padding: 16px 32px;
            font-size: 16px;
        }

        .btn-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--brand-secondary);
            font-weight: 600;
            font-size: 15px;
            padding: 4px 0;
            background: none;
            border: none;
            transition: all var(--transition-base);
        }

        .btn-link .arrow {
            transition: transform var(--transition-base);
            font-size: 18px;
        }

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

        .btn-link:hover .arrow {
            transform: translateX(4px);
        }

        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
        }

        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 16px 0;
            flex-wrap: wrap;
        }

        .brand-logo a {
            font-family: var(--font-brand);
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

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

        .brand-logo .logo-mark {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .header-search {
            flex: 1;
            max-width: 360px;
            min-width: 180px;
            position: relative;
        }

        .header-search input {
            width: 100%;
            height: 44px;
            border-radius: 22px;
            border: 1px solid var(--border-color);
            background: var(--bg-main);
            padding: 0 42px 0 18px;
            font-size: 14px;
            color: var(--text-primary);
            transition: all var(--transition-base);
        }

        .header-search input:focus {
            outline: none;
            border-color: var(--brand-primary);
            box-shadow: 0 0 0 3px rgba(255, 90, 42, 0.15);
        }

        .header-search .search-icon {
            position: absolute;
            right: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 18px;
            pointer-events: none;
        }

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

        .header-nav-row {
            position: relative;
            padding: 0 0 12px;
        }

        .nav-tabs {
            display: flex;
            gap: 8px;
            list-style: none;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border-color) transparent;
            padding-bottom: 4px;
        }

        .nav-tabs::-webkit-scrollbar {
            height: 4px;
        }

        .nav-tabs::-webkit-scrollbar-track {
            background: transparent;
        }

        .nav-tabs::-webkit-scrollbar-thumb {
            background: var(--border-color);
            border-radius: 2px;
        }

        .nav-tabs li {
            flex-shrink: 0;
        }

        .nav-tabs a {
            display: inline-flex;
            align-items: center;
            padding: 10px 20px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
            background: #fff;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .nav-tabs a:hover {
            border-color: var(--brand-primary);
            color: var(--brand-primary);
        }

        .nav-tabs a.active {
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            color: #fff;
            border-color: transparent;
            box-shadow: 0 4px 12px rgba(255, 90, 42, 0.3);
        }

        .nav-scroll-mask {
            position: absolute;
            right: 0;
            top: 0;
            bottom: 4px;
            width: 40px;
            background: linear-gradient(90deg, transparent, #fff);
            pointer-events: none;
            border-radius: 0 20px 20px 0;
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .hero-section {
            background-image: linear-gradient(165deg, rgba(24, 24, 27, 0.92) 0%, rgba(217, 45, 32, 0.65) 100%), url('/assets/images/backpic');
            background-size: cover;
            background-position: center;
            color: #fff;
            padding: 96px 0 72px;
            position: relative;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(180deg, transparent, var(--bg-main));
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .hero-content h1 {
            font-family: var(--font-brand);
            font-size: 40px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
            color: #fff;
        }

        .hero-content .hero-sub {
            font-size: 18px;
            color: #e0e0e0;
            max-width: 520px;
            line-height: 1.8;
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-actions .btn-outline {
            border-color: rgba(255, 255, 255, 0.4);
            color: #fff;
        }

        .hero-actions .btn-outline:hover {
            border-color: #fff;
            color: #fff;
        }

        .hero-data-strip {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
            margin-top: 40px;
            position: relative;
            z-index: 3;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-stat .stat-num {
            font-family: var(--font-mono);
            font-size: 28px;
            font-weight: 700;
            color: var(--accent-gold);
            letter-spacing: 0.5px;
        }

        .hero-stat .stat-label {
            font-size: 13px;
            color: #c9c9ce;
        }

        .hero-panel {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-hero-card);
            padding: 28px;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .hero-panel .panel-title {
            font-family: var(--font-brand);
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .hero-panel .panel-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-cyan);
            background: rgba(34, 211, 238, 0.12);
            padding: 4px 10px;
            border-radius: 12px;
        }

        .hero-panel .panel-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .hero-panel .panel-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: #e0e0e0;
        }

        .hero-panel .panel-list li::before {
            content: '';
            width: 6px;
            height: 6px;
            background: var(--accent-gold);
            border-radius: 50%;
            flex-shrink: 0;
        }

        .pain-card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }

        .pain-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }

        .pain-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--brand-primary);
        }

        .pain-card .pain-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: rgba(255, 90, 42, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 16px;
        }

        .pain-card h3 {
            font-family: var(--font-brand);
            font-size: 19px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .pain-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .solution-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .solution-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

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

        .solution-card .solution-img {
            border-radius: 14px;
            overflow: hidden;
            height: 160px;
            background: var(--bg-main);
        }

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

        .solution-card h3 {
            font-family: var(--font-brand);
            font-size: 19px;
            font-weight: 700;
            color: var(--text-primary);
        }

        .solution-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .step-item {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            text-align: center;
            position: relative;
            transition: all var(--transition-base);
        }

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

        .step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            color: #fff;
            font-family: var(--font-mono);
            font-size: 18px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
        }

        .step-item h3 {
            font-family: var(--font-brand);
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .data-badge-row {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
            justify-content: center;
            align-items: center;
        }

        .data-badge {
            min-width: 120px;
            text-align: center;
            padding: 20px 24px;
            border-radius: 50%;
            transition: all var(--transition-base);
        }

        .data-badge .badge-num {
            font-family: var(--font-mono);
            font-size: 30px;
            font-weight: 700;
            letter-spacing: 0.5px;
            line-height: 1.2;
        }

        .data-badge .badge-label {
            font-size: 13px;
            font-weight: 500;
        }

        .data-badge.gradient-badge {
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            color: #fff;
            box-shadow: 0 8px 24px rgba(255, 90, 42, 0.3);
        }

        .data-badge.gold-badge {
            background: rgba(245, 158, 11, 0.15);
            color: #b45309;
            border: 1px solid rgba(245, 158, 11, 0.3);
        }

        .data-badge.dark-badge {
            background: var(--brand-dark);
            color: #fff;
        }

        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
        }

        .category-entry {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }

        .category-entry:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--brand-primary);
        }

        .category-entry .cat-icon {
            font-size: 28px;
            margin-bottom: 10px;
        }

        .category-entry h3 {
            font-family: var(--font-brand);
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

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

        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 24px;
        }

        .testimonial-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }

        .testimonial-card:nth-child(even) {
            transform: translateY(16px);
        }

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

        .testimonial-card:nth-child(even):hover {
            transform: translateY(12px);
        }

        .testimonial-card .quote-mark {
            font-size: 32px;
            color: var(--brand-primary);
            line-height: 1;
            margin-bottom: 10px;
        }

        .testimonial-card blockquote {
            font-size: 15px;
            color: var(--text-primary);
            line-height: 1.75;
            margin-bottom: 16px;
        }

        .testimonial-card .testimonial-author {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .testimonial-card .testimonial-author::before {
            content: '';
            width: 24px;
            height: 2px;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            border-radius: 1px;
        }

        .audience-pills {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .audience-pill {
            display: inline-flex;
            align-items: center;
            padding: 10px 20px;
            border-radius: 24px;
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            transition: all var(--transition-base);
        }

        .audience-pill:hover {
            border-color: var(--brand-primary);
            color: var(--brand-primary);
            background: rgba(255, 90, 42, 0.04);
        }

        .brand-intro-section {
            background: #fff;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .brand-intro-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            align-items: center;
        }

        .brand-intro-text h2 {
            font-family: var(--font-brand);
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .brand-intro-text h2::after {
            content: '';
            display: block;
            width: 40px;
            height: 4px;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            border-radius: 2px;
            margin-top: 12px;
        }

        .brand-intro-text p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 12px;
        }

        .brand-intro-img {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

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

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-item {
            display: grid;
            grid-template-columns: 88px 1fr auto;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px dashed var(--border-color);
            transition: background var(--transition-base);
        }

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

        .news-item:hover {
            background: rgba(255, 90, 42, 0.03);
        }

        .news-date {
            font-family: var(--font-mono);
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 600;
            letter-spacing: 0.5px;
            padding-top: 4px;
        }

        .news-body h3 {
            font-family: var(--font-brand);
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .news-body .news-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        .news-action {
            display: flex;
            align-items: center;
        }

        .metrics-section {
            background: var(--brand-dark);
            color: #fff;
        }

        .metrics-section .section-heading h2 {
            color: #fff;
        }

        .metrics-section .section-sub {
            color: #c9c9ce;
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 24px;
        }

        .metric-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-card);
            padding: 28px;
            text-align: center;
            transition: all var(--transition-base);
        }

        .metric-card:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 90, 42, 0.4);
            transform: translateY(-4px);
        }

        .metric-card .metric-num {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 700;
            letter-spacing: 0.5px;
            line-height: 1.2;
            background: linear-gradient(135deg, var(--accent-gold), #fb923c);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            -webkit-text-fill-color: transparent;
        }

        .metric-card .metric-label {
            font-size: 14px;
            color: #c9c9ce;
            margin-top: 8px;
        }

        .metric-card .metric-desc {
            font-size: 13px;
            color: #8b8b90;
            margin-top: 6px;
            line-height: 1.6;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 780px;
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition-base);
        }

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

        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            font-weight: 700;
            font-size: 17px;
            color: var(--text-primary);
            list-style: none;
            user-select: none;
            gap: 16px;
        }

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

        .faq-item summary .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(255, 90, 42, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--brand-primary);
            transition: transform var(--transition-base);
        }

        .faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
            background: var(--brand-primary);
            color: #fff;
        }

        .faq-item .faq-answer {
            padding: 0 24px 20px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        .cta-section {
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            color: #fff;
            padding: var(--section-space) 0;
            border-radius: 0;
        }

        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .cta-content h2 {
            font-family: var(--font-brand);
            font-size: 30px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .cta-content p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.75;
            margin-bottom: 24px;
        }

        .cta-form {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.15);
        }

        .cta-form label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .cta-form input {
            width: 100%;
            height: 48px;
            border-radius: var(--radius-input);
            border: 1px solid var(--border-color);
            background: var(--bg-main);
            padding: 0 18px;
            font-size: 15px;
            transition: all var(--transition-base);
            margin-bottom: 16px;
        }

        .cta-form input:focus {
            outline: none;
            border-color: var(--brand-primary);
            box-shadow: 0 0 0 3px rgba(255, 90, 42, 0.15);
        }

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

        .site-footer {
            background: var(--brand-dark);
            color: #c9c9ce;
            padding: 48px 0 24px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            margin-bottom: 20px;
        }

        .footer-brand a {
            font-family: var(--font-brand);
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
        }

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

        .footer-brand p {
            font-size: 14px;
            color: #8b8b90;
            line-height: 1.7;
            margin-top: 8px;
            max-width: 280px;
        }

        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .footer-col h4 {
            font-family: var(--font-brand);
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-col a {
            display: block;
            color: #c9c9ce;
            font-size: 14px;
            padding: 4px 0;
            transition: color var(--transition-base);
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: #8b8b90;
        }

        .footer-bottom a {
            color: #c9c9ce;
            font-size: 13px;
        }

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

        .footer-sep {
            margin: 0 8px;
            color: #55555a;
        }

        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

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

            .brand-intro-grid {
                grid-template-columns: 1fr;
            }

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

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

            :root {
                --section-space: 56px;
            }
        }

        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
                gap: 12px;
            }

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

            .header-actions {
                margin-left: auto;
            }

            .hero-section {
                padding: 48px 0 56px;
            }

            .hero-content h1 {
                font-size: 30px;
            }

            .hero-actions {
                flex-direction: column;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .news-item {
                grid-template-columns: 1fr;
                gap: 8px;
                padding: 16px 0;
            }

            .news-action {
                justify-content: flex-start;
            }

            .data-badge-row {
                gap: 16px;
            }

            .data-badge {
                min-width: 100px;
                padding: 16px 20px;
            }

            .data-badge .badge-num {
                font-size: 24px;
            }

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

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

            :root {
                --section-space: 44px;
            }
        }

        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }

            .section-heading h2 {
                font-size: 24px;
            }

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

            .hero-content .hero-sub {
                font-size: 16px;
            }

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

            .data-badge-row {
                gap: 12px;
            }

            .data-badge {
                min-width: 88px;
                padding: 14px 16px;
            }

            .data-badge .badge-num {
                font-size: 20px;
            }

            .category-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .testimonial-card:nth-child(even) {
                transform: translateY(0);
            }

            .testimonial-card:nth-child(even):hover {
                transform: translateY(-4px);
            }

            .footer-links {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .cta-form {
                padding: 20px;
            }

            .faq-item summary {
                padding: 16px 18px;
                font-size: 15px;
            }

            .faq-item .faq-answer {
                padding: 0 18px 16px;
                font-size: 14px;
            }
        }

/* roulang page: category4 */
:root {
            --brand-primary: #FF5A2A;
            --brand-secondary: #D92D20;
            --brand-dark: #18181B;
            --bg-main: #F7F5F2;
            --card-bg: #FFFFFF;
            --accent-gold: #F59E0B;
            --accent-cyan: #22D3EE;
            --text-primary: #2B2B2E;
            --text-secondary: #55555A;
            --text-muted: #8B8B90;
            --border-color: #E8E4DF;
            --radius-card: 20px;
            --radius-hero-card: 24px;
            --radius-btn: 24px;
            --radius-input: 16px;
            --shadow-card: 0 6px 24px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 14px 40px rgba(0, 0, 0, 0.10);
            --shadow-cta: 0 8px 20px rgba(255, 90, 42, 0.28);
            --font-brand: "PingFang SC Semibold", "Noto Sans SC Bold", sans-serif;
            --font-body: "PingFang SC Regular", "Noto Sans SC Regular", "Microsoft YaHei", sans-serif;
            --font-mono: "Roboto Mono", "SFMono-Regular", monospace;
            --transition-base: 0.25s ease;
            --container-max: 1200px;
            --section-space: 72px;
        }

        @media (max-width: 1024px) {
            :root { --section-space: 56px; }
        }
        @media (max-width: 640px) {
            :root { --section-space: 44px; }
        }

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

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

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--bg-main);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: var(--brand-secondary);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--brand-primary);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        summary:focus-visible {
            outline: 2px solid var(--brand-primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

        button {
            font-family: var(--font-body);
            cursor: pointer;
            border: none;
            background: none;
        }
        input {
            font-family: var(--font-body);
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        main {
            flex: 1;
            padding-bottom: var(--section-space);
        }

        section {
            padding: var(--section-space) 0;
            position: relative;
        }
        .section-sm {
            padding: 48px 0;
        }
        .section-dark {
            background-color: var(--brand-dark);
            color: #fff;
        }
        .section-dark .section-sub {
            color: #c9c9ce;
        }

        .section-heading {
            margin-bottom: 36px;
            position: relative;
        }
        .section-heading h2 {
            font-family: var(--font-brand);
            font-size: 30px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--text-primary);
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .section-dark .section-heading h2 {
            color: #fff;
        }
        .section-heading h2::after {
            content: '';
            display: block;
            width: 40px;
            height: 4px;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            border-radius: 2px;
            margin-top: 16px;
        }
        .section-sub {
            color: var(--text-secondary);
            font-size: 17px;
            max-width: 680px;
            line-height: 1.75;
        }

        /* ========== HEADER & NAV ========== */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 16px 0;
            flex-wrap: wrap;
        }
        .brand-logo a {
            font-family: var(--font-brand);
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .brand-logo a:hover {
            color: var(--brand-primary);
        }
        .brand-logo .logo-mark {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .header-search {
            flex: 1;
            max-width: 360px;
            min-width: 180px;
            position: relative;
        }
        .header-search input {
            width: 100%;
            height: 44px;
            border-radius: 22px;
            border: 1px solid var(--border-color);
            background: var(--bg-main);
            padding: 0 42px 0 18px;
            font-size: 14px;
            color: var(--text-primary);
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }
        .header-search input:focus {
            outline: none;
            border-color: var(--brand-primary);
            box-shadow: 0 0 0 3px rgba(255, 90, 42, 0.15);
        }
        .header-search .search-icon {
            position: absolute;
            right: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 20px;
            pointer-events: none;
        }
        .header-actions .btn {
            white-space: nowrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            font-weight: 600;
            font-size: 15px;
            border-radius: var(--radius-btn);
            padding: 10px 22px;
            transition: all var(--transition-base);
            line-height: 1.4;
            letter-spacing: 0.3px;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            color: #fff;
            box-shadow: var(--shadow-cta);
        }
        .btn-primary:hover {
            color: #fff;
            box-shadow: 0 10px 28px rgba(255, 90, 42, 0.4);
            transform: translateY(-2px);
        }
        .btn-secondary {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-color);
        }
        .btn-secondary:hover {
            color: var(--brand-primary);
            border-color: var(--brand-primary);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 14px;
        }
        .btn-lg {
            padding: 14px 32px;
            font-size: 17px;
        }

        .header-nav-row {
            position: relative;
            border-top: 1px solid var(--border-color);
            padding: 10px 0;
            overflow: hidden;
        }
        .nav-tabs {
            display: flex;
            gap: 8px;
            list-style: none;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border-color) transparent;
            padding-bottom: 2px;
        }
        .nav-tabs::-webkit-scrollbar {
            height: 4px;
        }
        .nav-tabs::-webkit-scrollbar-thumb {
            background: var(--border-color);
            border-radius: 4px;
        }
        .nav-tabs li {
            flex-shrink: 0;
        }
        .nav-tabs a {
            display: inline-block;
            padding: 8px 18px;
            border-radius: 22px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
            background: #fff;
            white-space: nowrap;
            transition: all var(--transition-base);
        }
        .nav-tabs a:hover {
            color: var(--brand-primary);
            border-color: var(--brand-primary);
        }
        .nav-tabs a.active {
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            color: #fff;
            border-color: transparent;
        }
        .nav-scroll-mask {
            position: absolute;
            right: 0;
            top: 0;
            bottom: 0;
            width: 32px;
            background: linear-gradient(to right, transparent, #fff);
            pointer-events: none;
        }

        /* ========== HERO / PAGE HEADER ========== */
        .page-header {
            position: relative;
            background: url('/assets/images/5dd4fb2665e7bd02.png') no-repeat center center / cover;
            padding: 72px 0 56px;
            overflow: hidden;
        }
        .page-header::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(165deg, rgba(24,24,27,0.92) 0%, rgba(217,45,32,0.65) 100%);
        }
        .page-header .container {
            position: relative;
            z-index: 1;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: #c9c9ce;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: #c9c9ce;
            transition: color var(--transition-base);
        }
        .breadcrumb a:hover {
            color: #fff;
        }
        .breadcrumb .sep {
            color: rgba(255,255,255,0.4);
        }
        .breadcrumb .current {
            color: #fff;
            font-weight: 500;
        }
        .page-header h1 {
            font-family: var(--font-brand);
            font-size: 40px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
            line-height: 1.25;
            margin-bottom: 14px;
        }
        .page-header .lead {
            color: #e5e5ea;
            font-size: 18px;
            max-width: 620px;
            line-height: 1.7;
        }

        /* ========== TIMELINE ========== */
        .timeline-wrap {
            position: relative;
            padding: 10px 0;
        }
        .timeline-track {
            position: absolute;
            left: 24px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(to bottom, var(--brand-primary), var(--accent-gold), var(--brand-primary));
            border-radius: 1px;
        }
        .timeline-item {
            position: relative;
            padding-left: 64px;
            margin-bottom: 36px;
        }
        .timeline-item:last-child {
            margin-bottom: 0;
        }
        .timeline-dot {
            position: absolute;
            left: 14px;
            top: 6px;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            border: 3px solid #fff;
            box-shadow: 0 0 0 2px var(--border-color);
            z-index: 1;
        }
        .timeline-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 22px 26px;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }
        .timeline-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .timeline-date {
            font-family: var(--font-mono);
            font-size: 13px;
            color: var(--brand-secondary);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 8px;
        }
        .timeline-card h3 {
            font-family: var(--font-brand);
            font-size: 19px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .timeline-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .timeline-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 12px;
            margin-top: 10px;
            letter-spacing: 0.3px;
        }
        .tag-hot {
            background: rgba(255, 90, 42, 0.1);
            color: var(--brand-secondary);
        }
        .tag-gold {
            background: rgba(245, 158, 11, 0.12);
            color: #B45309;
        }
        .tag-cyan {
            background: rgba(34, 211, 238, 0.1);
            color: #0891B2;
        }

        /* ========== RANKING ========== */
        .rank-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .rank-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
            position: relative;
            transition: all var(--transition-base);
        }
        .rank-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .rank-card.rank-top {
            border: 2px solid transparent;
            background-image: linear-gradient(#fff, #fff), linear-gradient(135deg, var(--brand-primary), var(--accent-gold));
            background-origin: border-box;
            background-clip: padding-box, border-box;
        }
        .rank-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            font-family: var(--font-mono);
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 16px;
            color: #fff;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            box-shadow: 0 4px 12px rgba(255, 90, 42, 0.25);
        }
        .rank-badge.gold {
            background: linear-gradient(135deg, #F59E0B, #D97706);
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
        }
        .rank-badge.silver {
            background: linear-gradient(135deg, #9CA3AF, #6B7280);
            box-shadow: 0 4px 12px rgba(107, 114, 128, 0.25);
        }
        .rank-badge.bronze {
            background: linear-gradient(135deg, #CD7F32, #B45309);
            box-shadow: 0 4px 12px rgba(205, 127, 50, 0.25);
        }
        .rank-card h3 {
            font-family: var(--font-brand);
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .rank-card .rank-team {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 12px;
        }
        .rank-stats {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            border-top: 1px solid var(--border-color);
            padding-top: 12px;
        }
        .rank-stat-item {
            font-family: var(--font-mono);
            font-size: 14px;
            color: var(--text-secondary);
        }
        .rank-stat-item strong {
            color: var(--text-primary);
            font-weight: 700;
        }

        /* ========== DATA BADGES ========== */
        .data-badge-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }
        .data-badge-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 26px 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }
        .data-badge-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .data-badge-num {
            font-family: var(--font-mono);
            font-size: 36px;
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 8px;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .data-badge-num.gold-num {
            background: linear-gradient(135deg, #F59E0B, #D97706);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .data-badge-num.dark-num {
            background: none;
            -webkit-text-fill-color: var(--brand-dark);
            color: var(--brand-dark);
        }
        .data-badge-card .badge-label {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ========== FEATURED CARDS ========== */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .featured-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }
        .featured-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .featured-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .featured-body {
            padding: 20px 24px 24px;
        }
        .featured-body .tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 12px;
            background: rgba(34, 211, 238, 0.1);
            color: #0891B2;
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }
        .featured-body h3 {
            font-family: var(--font-brand);
            font-size: 19px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .featured-body p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== CTA / FORM ========== */
        .cta-panel {
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            border-radius: var(--radius-hero-card);
            padding: 48px 40px;
            color: #fff;
            box-shadow: var(--shadow-cta);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }
        .cta-panel h2 {
            font-family: var(--font-brand);
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            line-height: 1.3;
        }
        .cta-panel p {
            color: rgba(255,255,255,0.9);
            font-size: 16px;
            max-width: 560px;
            line-height: 1.65;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            flex-shrink: 0;
        }
        .cta-form input[type="email"] {
            height: 48px;
            border-radius: var(--radius-input);
            border: 1px solid rgba(255,255,255,0.3);
            background: rgba(255,255,255,0.15);
            padding: 0 18px;
            font-size: 15px;
            color: #fff;
            width: 260px;
            transition: all var(--transition-base);
        }
        .cta-form input[type="email"]::placeholder {
            color: rgba(255,255,255,0.7);
        }
        .cta-form input[type="email"]:focus {
            outline: none;
            border-color: #fff;
            background: rgba(255,255,255,0.25);
        }
        .cta-form .btn {
            height: 48px;
            padding: 0 28px;
            background: #fff;
            color: var(--brand-secondary);
            font-weight: 700;
            border-radius: var(--radius-input);
            box-shadow: none;
        }
        .cta-form .btn:hover {
            color: var(--brand-primary);
            transform: translateY(-1px);
        }

        /* ========== RELATED LINKS ========== */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 18px;
        }
        .related-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: all var(--transition-base);
        }
        .related-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--brand-primary);
            transform: translateY(-2px);
        }
        .related-card .related-info h3 {
            font-family: var(--font-brand);
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .related-card .related-info p {
            font-size: 14px;
            color: var(--text-secondary);
        }
        .related-card .arrow-icon {
            font-size: 22px;
            color: var(--brand-primary);
            font-weight: 700;
            transition: transform var(--transition-base);
        }
        .related-card:hover .arrow-icon {
            transform: translateX(4px);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--brand-dark);
            color: #c9c9ce;
            padding: 56px 0 24px;
            margin-top: 0;
        }
        .footer-top {
            display: flex;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }
        .footer-brand a {
            font-family: var(--font-brand);
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
            display: inline-block;
            margin-bottom: 12px;
        }
        .footer-brand a:hover {
            color: var(--brand-primary);
        }
        .footer-brand p {
            font-size: 14px;
            color: #9CA3AF;
            max-width: 360px;
            line-height: 1.7;
        }
        .footer-links {
            display: flex;
            gap: 48px;
            flex-wrap: wrap;
        }
        .footer-col h4 {
            font-family: var(--font-brand);
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: #9CA3AF;
            margin-bottom: 8px;
            transition: color var(--transition-base);
        }
        .footer-col a:hover {
            color: var(--brand-primary);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: #8B8B90;
        }
        .footer-bottom a {
            color: #9CA3AF;
            transition: color var(--transition-base);
        }
        .footer-bottom a:hover {
            color: var(--brand-primary);
        }
        .footer-sep {
            margin: 0 6px;
            color: #4B4B52;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .header-top {
                gap: 14px;
            }
            .header-search {
                max-width: 280px;
            }
            .rank-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-badge-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .page-header h1 {
                font-size: 34px;
            }
        }

        @media (max-width: 768px) {
            .header-top {
                flex-wrap: wrap;
            }
            .header-search {
                order: 3;
                max-width: 100%;
                min-width: 100%;
            }
            .header-search input {
                height: 40px;
            }
            .header-actions {
                margin-left: auto;
            }
            .header-actions .btn {
                padding: 8px 14px;
                font-size: 13px;
            }
            .rank-grid {
                grid-template-columns: 1fr;
            }
            .data-badge-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-panel {
                flex-direction: column;
                align-items: flex-start;
                padding: 32px 24px;
            }
            .cta-form {
                width: 100%;
            }
            .cta-form input[type="email"] {
                width: 100%;
            }
            .cta-form .btn {
                width: 100%;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .page-header {
                padding: 56px 0 40px;
            }
            .page-header h1 {
                font-size: 30px;
            }
            .timeline-item {
                padding-left: 48px;
            }
            .timeline-track {
                left: 18px;
            }
            .timeline-dot {
                left: 8px;
                width: 18px;
                height: 18px;
            }
            .section-heading h2 {
                font-size: 24px;
            }
        }

        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
            .header-top {
                padding: 12px 0;
            }
            .brand-logo a {
                font-size: 19px;
            }
            .brand-logo .logo-mark {
                width: 32px;
                height: 32px;
                font-size: 15px;
                border-radius: 8px;
            }
            .nav-tabs a {
                padding: 7px 14px;
                font-size: 13px;
            }
            .data-badge-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .data-badge-num {
                font-size: 28px;
            }
            .data-badge-card {
                padding: 20px 14px;
            }
            .page-header h1 {
                font-size: 28px;
            }
            .page-header .lead {
                font-size: 16px;
            }
            .rank-badge {
                width: 44px;
                height: 44px;
                font-size: 20px;
            }
            .cta-panel h2 {
                font-size: 22px;
            }
            .footer-top {
                flex-direction: column;
                gap: 28px;
            }
            .footer-links {
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
        }

/* roulang page: category5 */
:root {
            --brand-primary: #FF5A2A;
            --brand-secondary: #D92D20;
            --brand-dark: #18181B;
            --bg-main: #F7F5F2;
            --card-bg: #FFFFFF;
            --accent-gold: #F59E0B;
            --accent-cyan: #22D3EE;
            --text-primary: #2B2B2E;
            --text-secondary: #55555A;
            --text-muted: #8B8B90;
            --border-color: #E8E4DF;
            --radius-card: 20px;
            --radius-hero-card: 24px;
            --radius-btn: 24px;
            --radius-input: 16px;
            --shadow-card: 0 6px 24px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 14px 40px rgba(0, 0, 0, 0.10);
            --shadow-cta: 0 8px 20px rgba(255, 90, 42, 0.28);
            --font-brand: "PingFang SC Semibold", "Noto Sans SC Bold", sans-serif;
            --font-body: "PingFang SC Regular", "Noto Sans SC Regular", "Microsoft YaHei", sans-serif;
            --font-mono: "Roboto Mono", "SFMono-Regular", monospace;
            --transition-base: 0.25s ease;
            --container-max: 1200px;
            --section-space: 72px;
        }

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

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

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--bg-main);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: var(--brand-secondary);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--brand-primary);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        summary:focus-visible {
            outline: 2px solid var(--brand-primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

        button {
            font-family: var(--font-body);
            cursor: pointer;
            border: none;
            background: none;
        }
        input {
            font-family: var(--font-body);
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        main {
            flex: 1;
            padding-bottom: var(--section-space);
        }

        section {
            padding: var(--section-space) 0;
            position: relative;
        }
        .section-sm {
            padding: 48px 0;
        }
        .section-alt {
            background-color: transparent;
        }
        .section-dark {
            background-color: var(--brand-dark);
            color: #fff;
        }
        .section-dark .section-sub {
            color: #c9c9ce;
        }

        .section-heading {
            margin-bottom: 36px;
            position: relative;
        }
        .section-heading h2 {
            font-family: var(--font-brand);
            font-size: 30px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--text-primary);
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .section-dark .section-heading h2 {
            color: #fff;
        }
        .section-heading h2::after {
            content: '';
            display: block;
            width: 40px;
            height: 4px;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            border-radius: 2px;
            margin-top: 16px;
        }
        .section-sub {
            color: var(--text-secondary);
            font-size: 17px;
            max-width: 680px;
            line-height: 1.75;
        }

        /* ========== HEADER & NAV ========== */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 16px 0;
            flex-wrap: wrap;
        }
        .brand-logo a {
            font-family: var(--font-brand);
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .brand-logo a:hover {
            color: var(--brand-primary);
        }
        .brand-logo .logo-mark {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .header-search {
            flex: 1;
            max-width: 360px;
            min-width: 180px;
            position: relative;
        }
        .header-search input {
            width: 100%;
            height: 44px;
            border-radius: 22px;
            border: 1px solid var(--border-color);
            background: var(--bg-main);
            padding: 0 42px 0 18px;
            font-size: 14px;
            color: var(--text-primary);
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }
        .header-search input:focus {
            outline: none;
            border-color: var(--brand-primary);
            box-shadow: 0 0 0 3px rgba(255, 90, 42, 0.15);
        }
        .header-search .search-icon {
            position: absolute;
            right: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 18px;
            pointer-events: none;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            border-radius: var(--radius-btn);
            padding: 12px 24px;
            transition: all var(--transition-base);
            white-space: nowrap;
            cursor: pointer;
            line-height: 1.4;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            color: #fff;
            box-shadow: var(--shadow-cta);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(255, 90, 42, 0.38);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(255, 90, 42, 0.25);
        }
        .btn-sm {
            padding: 10px 18px;
            font-size: 14px;
        }
        .btn-outline {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-color);
        }
        .btn-outline:hover {
            border-color: var(--brand-primary);
            color: var(--brand-primary);
            transform: translateY(-2px);
        }

        .header-nav-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-bottom: 12px;
            position: relative;
        }
        .nav-tabs {
            display: flex;
            gap: 10px;
            list-style: none;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border-color) transparent;
            padding-bottom: 4px;
        }
        .nav-tabs::-webkit-scrollbar {
            height: 4px;
        }
        .nav-tabs::-webkit-scrollbar-thumb {
            background: var(--border-color);
            border-radius: 4px;
        }
        .nav-tabs::-webkit-scrollbar-track {
            background: transparent;
        }
        .nav-tabs li {
            flex-shrink: 0;
        }
        .nav-tabs a {
            display: inline-block;
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            background: #fff;
            border: 1px solid var(--border-color);
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .nav-tabs a:hover {
            border-color: var(--brand-primary);
            color: var(--brand-primary);
        }
        .nav-tabs a.active {
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            color: #fff;
            border-color: transparent;
            box-shadow: 0 4px 12px rgba(255, 90, 42, 0.25);
        }
        .nav-scroll-mask {
            position: absolute;
            right: 0;
            top: 0;
            bottom: 4px;
            width: 40px;
            background: linear-gradient(to right, transparent, #fff);
            pointer-events: none;
            display: none;
        }

        /* ========== BREADCRUMB ========== */
        .page-hero {
            background: linear-gradient(165deg, rgba(24, 24, 27, 0.92) 0%, rgba(217, 45, 32, 0.65) 100%),
                url('/assets/images/5dd4fb2665e7bd02.png') center/cover no-repeat;
            padding: 56px 0 48px;
            color: #fff;
            position: relative;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            transition: color var(--transition-base);
        }
        .breadcrumb a:hover {
            color: #fff;
        }
        .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.5);
        }
        .breadcrumb .current {
            color: #fff;
            font-weight: 600;
        }
        .page-hero h1 {
            font-family: var(--font-brand);
            font-size: 40px;
            font-weight: 700;
            letter-spacing: 0.5px;
            line-height: 1.25;
            margin-bottom: 14px;
        }
        .page-hero .hero-lead {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            line-height: 1.75;
        }

        /* ========== BRAND UPDATE TIMELINE ========== */
        .timeline-list {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .timeline-item {
            display: grid;
            grid-template-columns: 100px 1fr 280px;
            gap: 24px;
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            align-items: start;
        }
        .timeline-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--brand-primary);
        }
        .timeline-date {
            font-family: var(--font-mono);
            font-size: 15px;
            font-weight: 600;
            color: var(--brand-secondary);
            background: rgba(255, 90, 42, 0.08);
            border-radius: 12px;
            padding: 10px 12px;
            text-align: center;
            line-height: 1.4;
            display: flex;
            flex-direction: column;
            gap: 2px;
            min-height: 64px;
            align-items: center;
            justify-content: center;
        }
        .timeline-date .year {
            font-size: 18px;
        }
        .timeline-date .month-day {
            font-size: 13px;
            color: var(--text-muted);
        }
        .timeline-content h3 {
            font-family: var(--font-brand);
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .timeline-content .tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            padding: 3px 12px;
            border-radius: 12px;
            margin-bottom: 10px;
        }
        .tag-gold {
            background: rgba(245, 158, 11, 0.12);
            color: #B45309;
        }
        .tag-cyan {
            background: rgba(34, 211, 238, 0.12);
            color: #0E7490;
        }
        .tag-orange {
            background: rgba(255, 90, 42, 0.12);
            color: var(--brand-secondary);
        }
        .tag-green {
            background: rgba(16, 185, 129, 0.12);
            color: #047857;
        }
        .timeline-content p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.75;
        }
        .timeline-media {
            border-radius: 16px;
            overflow: hidden;
            aspect-ratio: 16/10;
            background: var(--bg-main);
            border: 1px solid var(--border-color);
        }
        .timeline-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ========== MILESTONE DATA ========== */
        .milestone-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .milestone-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .milestone-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--brand-primary), var(--accent-gold));
            border-radius: 4px 4px 0 0;
        }
        .milestone-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }
        .milestone-card .number {
            font-family: var(--font-mono);
            font-size: 34px;
            font-weight: 700;
            color: var(--brand-secondary);
            margin-bottom: 6px;
            line-height: 1.2;
        }
        .milestone-card .number.gold {
            color: var(--accent-gold);
        }
        .milestone-card .label {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ========== BRAND INTRO ========== */
        .brand-intro-wrap {
            display: grid;
            grid-template-columns: 1fr 360px;
            gap: 32px;
            align-items: start;
        }
        .brand-intro-text {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 32px;
            box-shadow: var(--shadow-card);
        }
        .brand-intro-text p {
            color: var(--text-secondary);
            font-size: 16px;
            line-height: 1.85;
            margin-bottom: 16px;
        }
        .brand-intro-text p:last-child {
            margin-bottom: 0;
        }
        .brand-intro-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
        }
        .brand-intro-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        /* ========== SUPPORT CARD ========== */
        .support-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .support-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            text-align: center;
        }
        .support-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--brand-primary);
        }
        .support-card .icon-circle {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 22px;
            color: #fff;
            font-weight: 700;
        }
        .support-card h3 {
            font-family: var(--font-brand);
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .support-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== RELATED LINKS ========== */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .related-link-card {
            display: block;
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            color: var(--text-primary);
        }
        .related-link-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--brand-primary);
            color: var(--brand-primary);
        }
        .related-link-card .rel-icon {
            font-size: 28px;
            margin-bottom: 8px;
            color: var(--brand-secondary);
        }
        .related-link-card h4 {
            font-family: var(--font-brand);
            font-size: 16px;
            font-weight: 600;
            color: inherit;
        }

        /* ========== CTA ========== */
        .cta-box {
            background: linear-gradient(135deg, var(--brand-dark) 0%, #2B2B2E 100%);
            border-radius: var(--radius-hero-card);
            padding: 44px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }
        .cta-box::after {
            content: '';
            position: absolute;
            top: -60%;
            right: -10%;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(255, 90, 42, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-box h2 {
            font-family: var(--font-brand);
            font-size: 26px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            line-height: 1.35;
            position: relative;
            z-index: 1;
        }
        .cta-box p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 15px;
            max-width: 520px;
            line-height: 1.7;
            position: relative;
            z-index: 1;
        }
        .cta-box .btn {
            position: relative;
            z-index: 1;
        }
        .cta-box .btn-light {
            background: #fff;
            color: var(--brand-dark);
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
        }
        .cta-box .btn-light:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(0, 0, 0, 0.3);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--brand-dark);
            color: #fff;
            margin-top: auto;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 40px;
            padding: 48px 0 32px;
        }
        .footer-brand a {
            font-family: var(--font-brand);
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            display: block;
            margin-bottom: 12px;
        }
        .footer-brand a:hover {
            color: var(--brand-primary);
        }
        .footer-brand p {
            color: #a0a0a5;
            font-size: 14px;
            line-height: 1.75;
            max-width: 320px;
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .footer-col h4 {
            font-family: var(--font-brand);
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .footer-col a {
            display: block;
            color: #a0a0a5;
            font-size: 14px;
            margin-bottom: 8px;
            transition: color var(--transition-base);
        }
        .footer-col a:hover {
            color: var(--brand-primary);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-bottom span {
            color: #8b8b90;
            font-size: 14px;
        }
        .footer-bottom a {
            color: #c9c9ce;
            font-size: 14px;
            transition: color var(--transition-base);
        }
        .footer-bottom a:hover {
            color: var(--brand-primary);
        }
        .footer-sep {
            margin: 0 8px;
            color: #4a4a4f !important;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            :root {
                --section-space: 56px;
            }
            .timeline-item {
                grid-template-columns: 80px 1fr;
                gap: 16px;
            }
            .timeline-media {
                grid-column: 2;
                max-width: 100%;
            }
            .milestone-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .brand-intro-wrap {
                grid-template-columns: 1fr;
            }
            .brand-intro-image {
                max-width: 480px;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .support-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-space: 44px;
            }
            .header-top {
                gap: 12px;
            }
            .header-search {
                order: 3;
                flex-basis: 100%;
                max-width: none;
            }
            .page-hero h1 {
                font-size: 32px;
            }
            .timeline-item {
                grid-template-columns: 1fr;
                gap: 12px;
                padding: 20px;
            }
            .timeline-date {
                flex-direction: row;
                gap: 6px;
                min-height: auto;
                padding: 8px 14px;
                justify-content: flex-start;
            }
            .timeline-date .year {
                font-size: 15px;
            }
            .timeline-date .month-day {
                font-size: 13px;
            }
            .timeline-media {
                grid-column: auto;
            }
            .cta-box {
                flex-direction: column;
                align-items: flex-start;
                padding: 32px 24px;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 28px;
                padding: 36px 0 24px;
            }
            .footer-links {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .nav-scroll-mask {
                display: block;
            }
        }

        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
            .header-top {
                padding: 12px 0;
            }
            .brand-logo a {
                font-size: 19px;
            }
            .brand-logo .logo-mark {
                width: 32px;
                height: 32px;
                font-size: 16px;
                border-radius: 8px;
            }
            .header-actions .btn {
                padding: 8px 14px;
                font-size: 13px;
            }
            .page-hero {
                padding: 40px 0 36px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero .hero-lead {
                font-size: 15px;
            }
            .section-heading h2 {
                font-size: 24px;
            }
            .milestone-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .milestone-card {
                padding: 20px 16px;
            }
            .milestone-card .number {
                font-size: 28px;
            }
            .support-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .brand-intro-text {
                padding: 22px 18px;
            }
            .brand-intro-text p {
                font-size: 15px;
            }
            .cta-box h2 {
                font-size: 22px;
            }
            .timeline-content h3 {
                font-size: 18px;
            }
            .timeline-content p {
                font-size: 14px;
            }
        }