/* roulang page: index */
/* ============ 设计变量 ============ */
        :root {
            --color-bg: #F5F2EC;
            --color-surface: #FFFFFF;
            --color-text: #101418;
            --color-muted: #6B716D;
            --color-primary: #101418;
            --color-accent: #FF5520;
            --color-accent-alt: #C6F04C;
            --color-line: #E7E4DE;
            --radius-card: 16px;
            --radius-small: 8px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(10, 10, 10, 0.04);
            --shadow-lg: 0 16px 40px rgba(10, 10, 10, 0.12);
            --section-space: 72px;
            --container-max: 1200px;
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', sans-serif;
        }

        /* ============ Reset & Base ============ */
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: var(--font-sans);
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.75;
            padding-bottom: 80px;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease;
        }
        a:hover {
            color: var(--color-accent);
        }
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 2px;
        }

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

        button, input, textarea, select {
            font-family: var(--font-sans);
            font-size: 1rem;
        }

        button {
            cursor: pointer;
        }

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

        /* ============ 导航 ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            transition: background 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
            border-bottom: 1px solid transparent;
            background: transparent;
        }
        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.96);
            border-bottom: 1px solid var(--color-line);
            box-shadow: var(--shadow-sm);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 16px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.35rem;
            letter-spacing: -0.01em;
            color: var(--color-text);
            flex-shrink: 0;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--color-text);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 700;
            letter-spacing: -0.05em;
            transition: background 0.3s ease;
        }
        .logo:hover .logo-icon {
            background: var(--color-accent);
            color: #fff;
        }
        .logo:hover {
            color: var(--color-text);
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-desktop a {
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--color-text);
            padding: 6px 0;
            position: relative;
            white-space: nowrap;
            transition: color 0.25s ease;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-accent);
            transition: width 0.3s ease;
        }
        .nav-desktop a:hover {
            color: var(--color-accent);
        }
        .nav-desktop a:hover::after {
            width: 100%;
        }
        .nav-desktop a.active {
            color: var(--color-accent);
            font-weight: 700;
        }
        .nav-desktop a.active::after {
            width: 100%;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--color-accent);
            color: #fff !important;
            padding: 10px 18px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 0.9rem;
            transition: background 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
            white-space: nowrap;
        }
        .nav-cta:hover {
            background: #e64a1a;
            color: #fff !important;
            transform: translateY(-1px);
            box-shadow: 0 8px 16px rgba(255, 85, 32, 0.25);
        }
        .nav-cta::after {
            display: none !important;
        }

        /* 移动端汉堡 */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
        }
        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-text);
            border-radius: 2px;
            transition: transform 0.3s ease, opacity 0.3s ease;
        }
        .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            width: 100%;
            max-width: 380px;
            height: 100vh;
            background: var(--color-surface);
            z-index: 999;
            padding: 100px 32px 32px;
            flex-direction: column;
            gap: 8px;
            box-shadow: -20px 0 60px rgba(10, 10, 10, 0.15);
            transform: translateX(100%);
            transition: transform 0.35s ease;
        }
        .mobile-menu.open {
            transform: translateX(0);
        }
        .mobile-menu a {
            display: block;
            font-size: 1.1rem;
            font-weight: 500;
            padding: 14px 0;
            border-bottom: 1px solid var(--color-line);
            color: var(--color-text);
        }
        .mobile-menu a:hover {
            color: var(--color-accent);
        }
        .mobile-menu .nav-cta {
            margin-top: 16px;
            justify-content: center;
        }

        /* ============ Hero ============ */
        .hero {
            padding-top: 120px;
            padding-bottom: var(--section-space);
            background: var(--color-bg);
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: -200px;
            width: 600px;
            height: 600px;
            border-radius: 50%;
            background: rgba(255, 85, 32, 0.04);
            pointer-events: none;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 56px;
            align-items: center;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--color-muted);
            margin-bottom: 24px;
            box-shadow: var(--shadow-sm);
        }
        .hero-badge i {
            color: var(--color-accent);
            font-size: 0.8rem;
        }
        .hero h1 {
            font-size: clamp(2.8rem, 6vw, 5rem);
            line-height: 1.05;
            letter-spacing: -0.02em;
            font-weight: 800;
            margin-bottom: 24px;
            color: var(--color-text);
        }
        .hero h1 .accent {
            color: var(--color-accent);
        }
        .hero-sub {
            font-size: 1.1rem;
            line-height: 1.8;
            color: var(--color-muted);
            max-width: 560px;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 32px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            transition: all 0.3s ease;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--color-accent);
            color: #fff;
        }
        .btn-primary:hover {
            background: #e64a1a;
            transform: translateY(-2px);
            box-shadow: 0 12px 24px rgba(255, 85, 32, 0.3);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(1px);
        }
        .btn-outline {
            background: transparent;
            border: 1px solid var(--color-text);
            color: var(--color-text);
        }
        .btn-outline:hover {
            background: rgba(16, 20, 24, 0.05);
            color: var(--color-text);
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 10px 20px;
            font-size: 0.85rem;
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            padding-top: 24px;
            border-top: 1px solid var(--color-line);
        }
        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .hero-stat-num {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-text);
            letter-spacing: -0.01em;
        }
        .hero-stat-label {
            font-size: 0.82rem;
            color: var(--color-muted);
        }
        .hero-visual {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            background: var(--color-text);
            aspect-ratio: 4/3;
        }
        .hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.85;
            transition: transform 0.6s ease;
        }
        .hero-visual:hover img {
            transform: scale(1.03);
        }
        .hero-visual::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(16, 20, 24, 0.4) 0%, rgba(16, 20, 24, 0.05) 100%);
            pointer-events: none;
        }
        .hero-visual-overlay {
            position: absolute;
            bottom: 24px;
            left: 24px;
            right: 24px;
            z-index: 2;
            color: #fff;
        }
        .hero-visual-overlay h3 {
            font-size: 1.3rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            margin-bottom: 8px;
        }
        .hero-visual-overlay p {
            font-size: 0.9rem;
            opacity: 0.85;
            line-height: 1.5;
        }

        /* ============ Section 通用 ============ */
        section {
            padding: var(--section-space) 0;
        }
        .section-header {
            margin-bottom: 48px;
        }
        .section-eyebrow {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--color-accent);
            margin-bottom: 12px;
        }
        .section-title {
            font-size: clamp(1.8rem, 3vw, 2.4rem);
            line-height: 1.15;
            letter-spacing: -0.01em;
            font-weight: 800;
            color: var(--color-text);
            margin-bottom: 16px;
        }
        .section-desc {
            font-size: 1.02rem;
            color: var(--color-muted);
            max-width: 680px;
            line-height: 1.8;
        }
        .section-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 20px;
        }

        /* ============ 卖点三连 ============ */
        .features-section {
            background: var(--color-bg);
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            align-items: start;
        }
        .feature-item {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 28px 28px 32px;
            box-shadow: var(--shadow-sm);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
            position: relative;
        }
        .feature-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(16, 20, 24, 0.25);
        }
        .feature-item.middle {
            background: var(--color-text);
            color: #fff;
            transform: translateY(-12px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-text);
        }
        .feature-item.middle:hover {
            transform: translateY(-16px);
            border-color: var(--color-text);
        }
        .feature-num {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            color: var(--color-accent);
            margin-bottom: 16px;
            line-height: 1;
        }
        .feature-item.middle .feature-num {
            color: var(--color-accent-alt);
        }
        .feature-icon {
            font-size: 1.5rem;
            margin-bottom: 16px;
            color: var(--color-accent);
        }
        .feature-item.middle .feature-icon {
            color: var(--color-accent-alt);
        }
        .feature-item h3 {
            font-size: 1.3rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .feature-item p {
            font-size: 0.95rem;
            line-height: 1.7;
            color: var(--color-muted);
        }
        .feature-item.middle p {
            color: rgba(255, 255, 255, 0.75);
        }

        /* ============ 场景演示 ============ */
        .scenario-section {
            background: var(--color-surface);
            border-top: 1px solid var(--color-line);
            border-bottom: 1px solid var(--color-line);
        }
        .scenario-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            margin-bottom: 56px;
        }
        .scenario-row:last-child {
            margin-bottom: 0;
        }
        .scenario-row.reverse {
            direction: rtl;
        }
        .scenario-row.reverse .scenario-text,
        .scenario-row.reverse .scenario-image {
            direction: ltr;
        }
        .scenario-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            aspect-ratio: 16/10;
            background: var(--color-bg);
            transition: transform 0.45s ease, box-shadow 0.45s ease;
            position: relative;
        }
        .scenario-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }
        .scenario-image:hover {
            box-shadow: var(--shadow-lg);
            transform: scale(0.99);
        }
        .scenario-image:hover img {
            transform: scale(1.04);
        }
        .scenario-text h3 {
            font-size: 1.55rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            line-height: 1.25;
            margin-bottom: 16px;
        }
        .scenario-text p {
            font-size: 0.98rem;
            color: var(--color-muted);
            line-height: 1.8;
            margin-bottom: 16px;
            max-width: 520px;
        }
        .scenario-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.92rem;
            color: var(--color-accent);
            border-bottom: 1px solid transparent;
            transition: gap 0.3s ease, border-color 0.3s ease;
        }
        .scenario-link:hover {
            gap: 10px;
            border-bottom-color: var(--color-accent);
            color: var(--color-accent);
        }

        /* ============ 深度内容区 ============ */
        .deep-section {
            background: var(--color-bg);
        }
        .deep-layout {
            display: grid;
            grid-template-columns: 200px 1fr;
            gap: 48px;
        }
        .deep-toc {
            position: sticky;
            top: 100px;
            align-self: start;
        }
        .deep-toc h4 {
            font-size: 0.85rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            color: var(--color-muted);
            margin-bottom: 16px;
        }
        .deep-toc a {
            display: block;
            font-size: 0.9rem;
            font-weight: 500;
            padding: 8px 0;
            color: var(--color-muted);
            border-left: 2px solid var(--color-line);
            padding-left: 14px;
            transition: color 0.25s ease, border-color 0.25s ease;
        }
        .deep-toc a:hover, .deep-toc a.active {
            color: var(--color-accent);
            border-left-color: var(--color-accent);
        }
        .deep-content h2 {
            font-size: 1.8rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            margin-bottom: 24px;
            line-height: 1.25;
        }
        .deep-content h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 12px;
            margin-top: 24px;
            line-height: 1.3;
        }
        .deep-content p {
            font-size: 0.98rem;
            line-height: 1.85;
            color: var(--color-muted);
            margin-bottom: 16px;
            max-width: 70ch;
        }
        .deep-content .highlight {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            margin: 24px 0;
            box-shadow: var(--shadow-sm);
        }
        .deep-content .highlight p {
            margin-bottom: 8px;
            color: var(--color-text);
        }
        .deep-content .highlight p:last-child {
            margin-bottom: 0;
        }
        .deep-content ul {
            list-style: none;
            padding: 0;
            margin: 16px 0;
        }
        .deep-content ul li {
            padding-left: 24px;
            position: relative;
            font-size: 0.96rem;
            color: var(--color-muted);
            line-height: 1.8;
            margin-bottom: 10px;
        }
        .deep-content ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0.6em;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-accent);
        }

        /* ============ 社会认同 ============ */
        .proof-section {
            background: var(--color-text);
            color: #fff;
            padding: var(--section-space) 0;
        }
        .proof-section .section-title {
            color: #fff;
        }
        .proof-section .section-desc {
            color: rgba(255, 255, 255, 0.7);
        }
        .proof-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-bottom: 48px;
        }
        .proof-stat {
            text-align: center;
            padding: 24px 16px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-card);
            background: rgba(255, 255, 255, 0.04);
            transition: background 0.3s ease, transform 0.3s ease;
        }
        .proof-stat:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-4px);
        }
        .proof-stat-num {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--color-accent-alt);
            margin-bottom: 8px;
        }
        .proof-stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
        }
        .proof-quotes {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            margin-bottom: 32px;
        }
        .proof-quote {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: background 0.3s ease, transform 0.3s ease;
        }
        .proof-quote:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
        }
        .proof-quote-stars {
            color: var(--color-accent-alt);
            font-size: 0.85rem;
            margin-bottom: 12px;
        }
        .proof-quote p {
            font-size: 0.92rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 12px;
        }
        .proof-quote-tag {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.55);
        }
        .proof-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .proof-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            background: rgba(255, 255, 255, 0.08);
            font-size: 0.82rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.8);
        }
        .proof-badge i {
            color: var(--color-accent-alt);
            font-size: 0.75rem;
        }

        /* ============ 新闻中心 ============ */
        .news-section {
            background: var(--color-bg);
        }
        .news-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
        }
        .news-item {
            display: grid;
            grid-template-columns: 110px 1fr auto;
            gap: 20px;
            align-items: start;
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            box-shadow: var(--shadow-sm);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }
        .news-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(16, 20, 24, 0.2);
        }
        .news-date {
            text-align: center;
            padding: 8px 0;
            border-right: 1px solid var(--color-line);
        }
        .news-date-num {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--color-text);
        }
        .news-date-month {
            font-size: 0.78rem;
            color: var(--color-muted);
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }
        .news-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .news-body p {
            font-size: 0.88rem;
            color: var(--color-muted);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-accent);
            white-space: nowrap;
            padding: 8px 0;
            transition: gap 0.3s ease;
            align-self: center;
        }
        .news-link:hover {
            gap: 8px;
            color: var(--color-accent);
        }

        /* ============ 品牌介绍 ============ */
        .brand-section {
            background: var(--color-surface);
            border-top: 1px solid var(--color-line);
            border-bottom: 1px solid var(--color-line);
        }
        .brand-layout {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 48px;
            align-items: center;
        }
        .brand-visual {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            aspect-ratio: 4/3;
            background: var(--color-bg);
        }
        .brand-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .brand-visual:hover img {
            transform: scale(1.03);
        }
        .brand-content h2 {
            font-size: clamp(1.8rem, 3vw, 2.2rem);
            font-weight: 800;
            letter-spacing: -0.01em;
            line-height: 1.15;
            margin-bottom: 20px;
        }
        .brand-content p {
            font-size: 0.98rem;
            line-height: 1.85;
            color: var(--color-muted);
            margin-bottom: 16px;
            max-width: 600px;
        }

        /* ============ 活动亮点墙 ============ */
        .highlight-wall {
            background: var(--color-bg);
        }
        .highlight-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .highlight-card {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }
        .highlight-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(16, 20, 24, 0.2);
        }
        .highlight-card-img {
            aspect-ratio: 16/10;
            overflow: hidden;
            background: var(--color-bg);
        }
        .highlight-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }
        .highlight-card:hover .highlight-card-img img {
            transform: scale(1.04);
        }
        .highlight-card-body {
            padding: 20px;
        }
        .highlight-card-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .highlight-card-body p {
            font-size: 0.88rem;
            color: var(--color-muted);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .highlight-card-cta {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-accent);
            transition: gap 0.3s ease;
        }
        .highlight-card-cta:hover {
            gap: 8px;
            color: var(--color-accent);
        }

        /* ============ 数据分析 ============ */
        .data-analysis {
            background: var(--color-surface);
            border-top: 1px solid var(--color-line);
            border-bottom: 1px solid var(--color-line);
        }
        .data-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-bottom: 32px;
        }
        .data-kpi {
            background: var(--color-bg);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .data-kpi:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-sm);
        }
        .data-kpi-label {
            font-size: 0.82rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            color: var(--color-muted);
            margin-bottom: 8px;
        }
        .data-kpi-value {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--color-text);
            margin-bottom: 8px;
        }
        .data-kpi-change {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-accent);
        }
        .data-kpi-change.down {
            color: var(--color-muted);
        }
        .data-bar-wrap {
            background: var(--color-bg);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 28px;
        }
        .data-bar-wrap h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 20px;
        }
        .data-bar-row {
            display: grid;
            grid-template-columns: 100px 1fr 60px;
            gap: 12px;
            align-items: center;
            margin-bottom: 14px;
        }
        .data-bar-label {
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--color-muted);
        }
        .data-bar-track {
            height: 8px;
            background: var(--color-line);
            border-radius: 4px;
            overflow: hidden;
        }
        .data-bar-fill {
            height: 100%;
            background: var(--color-accent);
            border-radius: 4px;
            transition: width 0.8s ease;
        }
        .data-bar-value {
            font-size: 0.85rem;
            font-weight: 700;
            text-align: right;
            color: var(--color-text);
        }

        /* ============ FAQ ============ */
        .faq-section {
            background: var(--color-bg);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .faq-item:hover {
            border-color: rgba(16, 20, 24, 0.25);
            box-shadow: var(--shadow-lg);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 24px;
            cursor: pointer;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text);
            transition: background 0.3s ease, color 0.3s ease;
        }
        .faq-question:hover {
            color: var(--color-accent);
        }
        .faq-icon {
            font-size: 0.85rem;
            color: var(--color-accent);
            flex-shrink: 0;
            transition: transform 0.3s ease;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
            border-left: 3px solid var(--color-accent);
            margin-left: 24px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px 20px;
        }
        .faq-answer p {
            font-size: 0.95rem;
            line-height: 1.75;
            color: var(--color-muted);
        }

        /* ============ 最终 CTA ============ */
        .final-cta {
            background: var(--color-text);
            color: #fff;
            padding: var(--section-space) 0;
            position: relative;
            overflow: hidden;
        }
        .final-cta::before {
            content: '';
            position: absolute;
            top: -100px;
            left: -100px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(255, 85, 32, 0.12);
            pointer-events: none;
        }
        .final-cta-inner {
            max-width: 700px;
            margin: 0 auto;
            text-align: center;
            position: relative;
            z-index: 1;
        }
        .final-cta h2 {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.15;
            margin-bottom: 20px;
        }
        .final-cta p {
            font-size: 1rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 32px;
        }
        .final-cta .btn-primary {
            font-size: 1rem;
            padding: 16px 36px;
        }

        /* ============ 相关推荐 ============ */
        .related-section {
            background: var(--color-bg);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .related-card {
            display: flex;
            gap: 20px;
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 18px;
            box-shadow: var(--shadow-sm);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(16, 20, 24, 0.2);
        }
        .related-card-img {
            width: 120px;
            height: 80px;
            border-radius: var(--radius-small);
            overflow: hidden;
            background: var(--color-bg);
            flex-shrink: 0;
        }
        .related-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .related-card-body h3 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 4px;
            line-height: 1.4;
        }
        .related-card-body p {
            font-size: 0.82rem;
            color: var(--color-muted);
            line-height: 1.6;
        }

        /* ============ Footer ============ */
        .footer {
            background: var(--color-text);
            color: #fff;
            padding: 64px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 48px;
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 1.3rem;
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.8;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            color: rgba(255, 255, 255, 0.5);
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.75);
            padding: 6px 0;
            transition: color 0.25s ease;
        }
        .footer-col a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 16px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
            transition: color 0.25s ease;
        }
        .footer-bottom a:hover {
            color: var(--color-accent);
        }

        /* ============ 底部固定转化条 ============ */
        .floating-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            z-index: 950;
            background: var(--color-text);
            color: #fff;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 -8px 24px rgba(10, 10, 10, 0.18);
            transform: translateY(100%);
            transition: transform 0.4s ease;
            padding: 10px 0;
        }
        .floating-bar.visible {
            transform: translateY(0);
        }
        .floating-bar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .floating-bar-text {
            font-size: 0.88rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.85);
        }
        .floating-bar .btn-primary {
            padding: 10px 22px;
            font-size: 0.85rem;
            white-space: nowrap;
            flex-shrink: 0;
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            :root {
                --section-space: 56px;
            }
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-item.middle {
                transform: none;
            }
            .feature-item.middle:hover {
                transform: translateY(-4px);
            }
            .scenario-row {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .scenario-row.reverse {
                direction: ltr;
            }
            .deep-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .deep-toc {
                position: static;
                display: flex;
                flex-wrap: wrap;
                gap: 12px;
                margin-bottom: 24px;
            }
            .deep-toc a {
                border-left: none;
                border-bottom: 2px solid var(--color-line);
                padding: 4px 8px;
            }
            .proof-stats {
                grid-template-columns: repeat(2, 1fr);
            }
            .proof-quotes {
                grid-template-columns: 1fr;
            }
            .brand-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .highlight-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
                gap: 24px;
            }
            .nav-desktop {
                gap: 18px;
            }
            .nav-desktop a {
                font-size: 0.85rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-space: 40px;
            }
            .header-inner {
                min-height: 60px;
            }
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-menu {
                display: flex;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .highlight-grid {
                grid-template-columns: 1fr;
            }
            .data-grid {
                grid-template-columns: 1fr;
            }
            .proof-stats {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .news-item {
                grid-template-columns: 80px 1fr;
                gap: 12px;
                padding: 16px;
            }
            .news-link {
                grid-column: 2;
            }
            .news-date-num {
                font-size: 1.3rem;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .floating-bar-inner {
                flex-direction: row;
                gap: 10px;
            }
            .floating-bar-text {
                font-size: 0.78rem;
            }
            .floating-bar .btn-primary {
                padding: 8px 16px;
                font-size: 0.78rem;
            }
            .hero h1 {
                font-size: clamp(2.2rem, 8vw, 3.5rem);
            }
            .hero-sub {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 16px;
            }
            .data-bar-row {
                grid-template-columns: 72px 1fr 50px;
                gap: 8px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .hero {
                padding-top: 90px;
            }
            .hero-actions {
                flex-direction: column;
                gap: 10px;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .proof-stats {
                grid-template-columns: 1fr;
            }
            .news-item {
                grid-template-columns: 1fr;
                gap: 8px;
            }
            .news-date {
                border-right: none;
                text-align: left;
                padding: 0;
            }
            .news-link {
                grid-column: 1;
            }
            .data-bar-row {
                grid-template-columns: 64px 1fr 44px;
                gap: 6px;
            }
            .floating-bar-text {
                display: none;
            }
            .floating-bar .btn-primary {
                width: 100%;
                justify-content: center;
            }
            .floating-bar-inner {
                justify-content: center;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            * {
                animation: none !important;
                transition: none !important;
            }
            html {
                scroll-behavior: auto;
            }
        }

/* roulang page: category3 */
:root {
            --color-bg: #F5F2EC;
            --color-surface: #FFFFFF;
            --color-text: #101418;
            --color-muted: #6B716D;
            --color-primary: #101418;
            --color-accent: #FF5520;
            --color-accent-alt: #C6F04C;
            --color-line: #E7E4DE;
            --radius-card: 16px;
            --radius-small: 8px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(10, 10, 10, 0.04);
            --shadow-lg: 0 16px 40px rgba(10, 10, 10, 0.12);
            --section-space: 72px;
            --container-max: 1200px;
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', sans-serif;
        }

        @media (max-width: 640px) {
            :root {
                --section-space: 40px;
            }
        }

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

        * {
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-sans);
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.75;
            padding-bottom: 80px;
            overflow-x: hidden;
            margin: 0;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease;
        }

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

        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 2px;
        }

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

        button, input, textarea, select {
            font-family: var(--font-sans);
            font-size: 1rem;
        }

        button {
            cursor: pointer;
        }

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

        /* 导航 */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            transition: background 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
            border-bottom: 1px solid transparent;
            background: transparent;
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.96);
            border-bottom: 1px solid var(--color-line);
            box-shadow: var(--shadow-sm);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.35rem;
            letter-spacing: -0.01em;
            color: var(--color-text);
            flex-shrink: 0;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--color-text);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 700;
            letter-spacing: -0.05em;
            transition: background 0.3s ease;
        }

        .logo:hover .logo-icon {
            background: var(--color-accent);
            color: #fff;
        }

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

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .nav-desktop a {
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--color-text);
            padding: 6px 0;
            position: relative;
            white-space: nowrap;
            transition: color 0.25s ease;
        }

        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-accent);
            transition: width 0.3s ease;
        }

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

        .nav-desktop a:hover::after {
            width: 100%;
        }

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

        .nav-desktop a.active::after {
            width: 100%;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--color-accent);
            color: #fff !important;
            padding: 10px 18px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 0.9rem;
            transition: background 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
            white-space: nowrap;
        }

        .nav-cta:hover {
            background: #e64a1a;
            color: #fff !important;
            transform: translateY(-1px);
            box-shadow: 0 8px 16px rgba(255, 85, 32, 0.25);
        }

        .nav-cta::after {
            display: none !important;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
        }

        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-text);
            border-radius: 2px;
            transition: transform 0.3s ease, opacity 0.3s ease;
        }

        .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: var(--color-bg);
            z-index: 1100;
            padding: 80px 24px 24px;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
        }

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

        .mobile-menu a {
            display: block;
            font-size: 1.25rem;
            font-weight: 600;
            padding: 12px 0;
            border-bottom: 1px solid var(--color-line);
            color: var(--color-text);
        }

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

        .mobile-menu .nav-cta {
            margin-top: 16px;
            text-align: center;
            justify-content: center;
        }

        @media (max-width: 1024px) {
            .nav-desktop {
                gap: 18px;
            }
            .nav-desktop a {
                font-size: 0.85rem;
            }
        }

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

        /* Hero */
        .schedule-hero {
            padding-top: 140px;
            padding-bottom: 48px;
            background: var(--color-primary);
            color: #fff;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .schedule-hero .container {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }

        .schedule-hero h1 {
            font-size: clamp(2.4rem, 5vw, 3.6rem);
            font-weight: 800;
            line-height: 1.08;
            letter-spacing: -0.02em;
            margin: 0 0 24px;
            color: #fff;
        }

        .schedule-hero h1 .accent-text {
            color: var(--color-accent);
        }

        .schedule-hero .hero-sub {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.7;
            max-width: 520px;
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 12px 24px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            transition: background 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease, color 0.3s ease;
            white-space: nowrap;
        }

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

        .btn-primary:hover {
            background: #e64a1a;
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 16px rgba(255, 85, 32, 0.25);
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.3);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.6);
            transform: translateY(-1px);
        }

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

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

        .hero-metrics {
            display: flex;
            flex-wrap: wrap;
            gap: 24px 32px;
        }

        .hero-metric {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .hero-metric .metric-num {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.01em;
            line-height: 1;
        }

        .hero-metric .metric-num.highlight {
            color: var(--color-accent-alt);
        }

        .hero-metric .metric-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
        }

        .hero-image-wrap {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            aspect-ratio: 16/10;
        }

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

        .hero-image-wrap:hover img {
            transform: scale(1.03);
        }

        @media (max-width: 768px) {
            .schedule-hero .container {
                grid-template-columns: 1fr;
                gap: 32px;
                padding-top: 40px;
            }
            .schedule-hero {
                padding-top: 120px;
            }
            .hero-image-wrap {
                order: -1;
            }
        }

        /* 状态筛选 */
        .filter-bar {
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-line);
            padding: 16px 0;
            position: sticky;
            top: 68px;
            z-index: 50;
            box-shadow: var(--shadow-sm);
        }

        .filter-bar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .filter-tabs {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }

        .filter-tab {
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            font-size: 0.88rem;
            font-weight: 600;
            border: 1px solid var(--color-line);
            background: var(--color-surface);
            color: var(--color-muted);
            transition: all 0.25s ease;
            white-space: nowrap;
        }

        .filter-tab:hover {
            border-color: var(--color-text);
            color: var(--color-text);
        }

        .filter-tab.active {
            background: var(--color-text);
            color: #fff;
            border-color: var(--color-text);
        }

        .filter-tab.pending-tab.active {
            background: var(--color-accent);
            border-color: var(--color-accent);
            color: #fff;
        }

        .filter-tab.finished-tab.active {
            background: var(--color-muted);
            border-color: var(--color-muted);
            color: #fff;
        }

        .filter-date {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--color-muted);
            font-size: 0.9rem;
            font-weight: 500;
        }

        .filter-date i {
            color: var(--color-accent);
        }

        @media (max-width: 640px) {
            .filter-bar {
                top: 60px;
            }
            .filter-bar-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .filter-tabs {
                width: 100%;
                overflow-x: auto;
                flex-wrap: nowrap;
                -webkit-overflow-scrolling: touch;
                padding-bottom: 4px;
            }
            .filter-tab {
                flex-shrink: 0;
            }
        }

        /* 赛程主体 */
        .schedule-main {
            padding: var(--section-space) 0;
        }

        .schedule-layout {
            display: grid;
            grid-template-columns: 280px 1fr;
            gap: 32px;
            align-items: start;
        }

        /* 侧边筛选 */
        .sidebar-filter {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 24px;
            position: sticky;
            top: 140px;
            box-shadow: var(--shadow-sm);
        }

        .sidebar-filter h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin: 0 0 16px;
            color: var(--color-text);
        }

        .sidebar-filter .filter-group {
            margin-bottom: 20px;
        }

        .sidebar-filter label {
            display: block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-muted);
            margin-bottom: 8px;
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

        .sidebar-filter select,
        .sidebar-filter input[type="date"] {
            width: 100%;
            padding: 10px 12px;
            border: 1px solid var(--color-line);
            border-radius: var(--radius-small);
            background: var(--color-bg);
            color: var(--color-text);
            font-size: 0.9rem;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
            appearance: none;
            -webkit-appearance: none;
        }

        .sidebar-filter select:focus,
        .sidebar-filter input:focus {
            border-color: var(--color-text);
            outline: none;
            box-shadow: 0 0 0 3px rgba(255, 85, 32, 0.15);
        }

        .sidebar-filter .sport-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .sport-tag {
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            font-size: 0.82rem;
            font-weight: 500;
            border: 1px solid var(--color-line);
            background: var(--color-bg);
            color: var(--color-muted);
            cursor: pointer;
            transition: all 0.25s ease;
        }

        .sport-tag:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        .sport-tag.active {
            background: var(--color-text);
            color: #fff;
            border-color: var(--color-text);
        }

        .sidebar-filter .apply-btn {
            width: 100%;
            padding: 12px;
            background: var(--color-text);
            color: #fff;
            border: none;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 0.9rem;
            transition: background 0.3s ease;
        }

        .sidebar-filter .apply-btn:hover {
            background: var(--color-accent);
        }

        @media (max-width: 1024px) {
            .schedule-layout {
                grid-template-columns: 1fr;
            }
            .sidebar-filter {
                position: static;
                order: 2;
            }
        }

        /* 时间线 */
        .timeline-section {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 32px;
            box-shadow: var(--shadow-sm);
        }

        .timeline-section h2 {
            font-size: clamp(1.4rem, 2.5vw, 1.8rem);
            font-weight: 800;
            letter-spacing: -0.01em;
            margin: 0 0 8px;
            color: var(--color-text);
        }

        .timeline-section .section-desc {
            color: var(--color-muted);
            font-size: 0.95rem;
            margin: 0 0 28px;
        }

        .status-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 0.78rem;
            font-weight: 700;
            white-space: nowrap;
            letter-spacing: 0.03em;
        }

        .status-badge.live {
            background: rgba(255, 85, 32, 0.1);
            color: var(--color-accent);
            border: 1px solid rgba(255, 85, 32, 0.3);
        }

        .status-badge.upcoming {
            background: rgba(198, 240, 76, 0.15);
            color: #4a6d00;
            border: 1px solid rgba(198, 240, 76, 0.4);
        }

        .status-badge.finished {
            background: rgba(107, 113, 109, 0.1);
            color: var(--color-muted);
            border: 1px solid rgba(107, 113, 109, 0.25);
        }

        .timeline-list {
            position: relative;
            padding-left: 32px;
        }

        .timeline-list::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--color-line);
            border-radius: 2px;
        }

        .timeline-item {
            position: relative;
            padding: 20px 0;
            border-bottom: 1px solid var(--color-line);
        }

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

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -28px;
            top: 28px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--color-surface);
            border: 3px solid var(--color-text);
            z-index: 1;
            transition: border-color 0.3s ease, background 0.3s ease;
        }

        .timeline-item.live::before {
            border-color: var(--color-accent);
            background: var(--color-accent);
            box-shadow: 0 0 0 4px rgba(255, 85, 32, 0.15);
        }

        .timeline-item.upcoming::before {
            border-color: var(--color-accent-alt);
        }

        .timeline-item.finished::before {
            border-color: var(--color-muted);
            background: var(--color-muted);
        }

        .timeline-item-head {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 8px;
        }

        .timeline-date {
            font-size: 0.88rem;
            font-weight: 700;
            color: var(--color-text);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .timeline-date i {
            color: var(--color-accent);
            font-size: 0.8rem;
        }

        .timeline-item h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--color-text);
            line-height: 1.4;
        }

        .timeline-item p {
            font-size: 0.92rem;
            color: var(--color-muted);
            margin: 0 0 12px;
            line-height: 1.65;
            max-width: 560px;
        }

        .timeline-item-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
        }

        .match-info {
            font-size: 0.82rem;
            color: var(--color-muted);
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            background: var(--color-bg);
            border: 1px solid var(--color-line);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        @media (max-width: 640px) {
            .timeline-section {
                padding: 20px;
            }
            .timeline-list {
                padding-left: 24px;
            }
            .timeline-item::before {
                left: -20px;
                width: 10px;
                height: 10px;
                top: 25px;
            }
            .timeline-item h3 {
                font-size: 1rem;
            }
        }

        /* 深度解读 */
        .insight-section {
            padding: var(--section-space) 0;
        }

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

        .insight-card {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }

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

        .insight-card .icon-wrap {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--color-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 1.2rem;
            margin-bottom: 16px;
        }

        .insight-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin: 0 0 12px;
            color: var(--color-text);
        }

        .insight-card p {
            font-size: 0.95rem;
            color: var(--color-muted);
            margin: 0;
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .insight-grid {
                grid-template-columns: 1fr;
            }
        }

        /* FAQ */
        .faq-section {
            padding: var(--section-space) 0;
            background: var(--color-surface);
            border-top: 1px solid var(--color-line);
            border-bottom: 1px solid var(--color-line);
        }

        .faq-section h2 {
            font-size: clamp(1.5rem, 3vw, 2rem);
            font-weight: 800;
            letter-spacing: -0.01em;
            margin: 0 0 8px;
            color: var(--color-text);
            text-align: center;
        }

        .faq-section .section-desc {
            text-align: center;
            color: var(--color-muted);
            font-size: 0.95rem;
            margin: 0 auto 32px;
            max-width: 480px;
        }

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

        .faq-item {
            border-bottom: 1px solid var(--color-line);
            padding: 4px 0;
        }

        .faq-question {
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            padding: 16px 0;
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color 0.25s ease;
        }

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

        .faq-question i {
            font-size: 0.85rem;
            color: var(--color-muted);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

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

        .faq-question.active i {
            transform: rotate(180deg);
            color: var(--color-accent);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 0;
        }

        .faq-answer.open {
            max-height: 300px;
            padding: 0 0 20px;
            border-left: 3px solid var(--color-accent);
            padding-left: 16px;
        }

        .faq-answer p {
            font-size: 0.92rem;
            color: var(--color-muted);
            margin: 0;
            line-height: 1.7;
        }

        /* CTA */
        .cta-section {
            padding: var(--section-space) 0;
            background: var(--color-primary);
            color: #fff;
            text-align: center;
        }

        .cta-section h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 800;
            letter-spacing: -0.01em;
            margin: 0 0 16px;
            color: #fff;
        }

        .cta-section h2 .accent-text {
            color: var(--color-accent);
        }

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

        .cta-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

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

        .btn-accent:hover {
            background: #e64a1a;
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 10px 20px rgba(255, 85, 32, 0.3);
        }

        .btn-dark-outline {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.3);
        }

        .btn-dark-outline:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            transform: translateY(-1px);
        }

        /* 页脚 */
        .footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 32px;
        }

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

        .footer-brand a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.3rem;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand .logo-icon {
            width: 32px;
            height: 32px;
            border-radius: 6px;
            background: var(--color-accent);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.95rem;
            font-weight: 700;
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            margin: 0;
            line-height: 1.7;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 16px;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.65);
            padding: 6px 0;
            transition: color 0.25s ease;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.55);
            align-items: center;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
            transition: color 0.25s ease;
        }

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

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

        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        /* 底部固定转化条 */
        .sticky-convert {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: var(--color-primary);
            color: #fff;
            z-index: 900;
            padding: 14px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
            transform: translateY(100%);
            transition: transform 0.4s ease;
        }

        .sticky-convert.visible {
            transform: translateY(0);
        }

        .sticky-convert p {
            font-size: 0.9rem;
            margin: 0;
            color: rgba(255, 255, 255, 0.85);
            flex: 1;
            line-height: 1.4;
        }

        .sticky-convert .btn-small{
    background: var(--color-accent);
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: var(--radius-pill);
    font-weight: 600;
    font-size: 0.85rem;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: background 0.3s ease, transform 0.2s ease;
    flex-shrink: 0;
}

.sticky-convert .btn-small:hover {
    background: #e64a1a;
    transform: translateY(-1px);
}

.sticky-convert .btn-small:active {
    transform: translateY(1px);
}

.sticky-convert .btn-small:focus-visible {
    outline: 2px solid var(--color-accent-alt);
    outline-offset: 2px;
}

@media (max-width: 640px) {
    .sticky-convert {
        padding: 10px 16px;
        gap: 10px;
    }
    .sticky-convert p {
        font-size: 0.8rem;
    }
}

/* roulang page: category1 */
:root {
            --color-bg: #F5F2EC;
            --color-surface: #FFFFFF;
            --color-text: #101418;
            --color-muted: #6B716D;
            --color-primary: #101418;
            --color-accent: #FF5520;
            --color-accent-alt: #C6F04C;
            --color-line: #E7E4DE;
            --radius-card: 16px;
            --radius-small: 8px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(10, 10, 10, 0.04);
            --shadow-lg: 0 16px 40px rgba(10, 10, 10, 0.12);
            --section-space: 72px;
            --container-max: 1200px;
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', sans-serif;
        }

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

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

        body {
            font-family: var(--font-sans);
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.75;
            padding-bottom: 80px;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease;
        }

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

        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 2px;
        }

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

        button,
        input,
        textarea,
        select {
            font-family: var(--font-sans);
            font-size: 1rem;
        }

        button {
            cursor: pointer;
        }

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

        /* ============ 导航 ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            transition: background 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
            border-bottom: 1px solid transparent;
            background: transparent;
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.96);
            border-bottom: 1px solid var(--color-line);
            box-shadow: var(--shadow-sm);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.35rem;
            letter-spacing: -0.01em;
            color: var(--color-text);
            flex-shrink: 0;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--color-text);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 700;
            letter-spacing: -0.05em;
            transition: background 0.3s ease;
        }

        .logo:hover .logo-icon {
            background: var(--color-accent);
            color: #fff;
        }

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

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .nav-desktop a {
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--color-text);
            padding: 6px 0;
            position: relative;
            white-space: nowrap;
            transition: color 0.25s ease;
        }

        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-accent);
            transition: width 0.3s ease;
        }

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

        .nav-desktop a:hover::after {
            width: 100%;
        }

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

        .nav-desktop a.active::after {
            width: 100%;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--color-accent);
            color: #fff !important;
            padding: 10px 18px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 0.9rem;
            transition: background 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
            white-space: nowrap;
        }

        .nav-cta:hover {
            background: #e64a1a;
            color: #fff !important;
            transform: translateY(-1px);
            box-shadow: 0 8px 16px rgba(255, 85, 32, 0.25);
        }

        .nav-cta::after {
            display: none !important;
        }

        /* 移动端汉堡 */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
        }

        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-text);
            border-radius: 2px;
            transition: transform 0.3s ease, opacity 0.3s ease;
        }

        .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            width: 100%;
            max-width: 380px;
            height: 100vh;
            background: #fff;
            z-index: 1100;
            padding: 80px 28px 40px;
            flex-direction: column;
            gap: 8px;
            box-shadow: -20px 0 60px rgba(10, 10, 10, 0.18);
            transform: translateX(100%);
            transition: transform 0.35s ease;
            overflow-y: auto;
        }

        .mobile-menu.open {
            transform: translateX(0);
        }

        .mobile-menu a {
            font-size: 1.15rem;
            font-weight: 600;
            padding: 14px 0;
            border-bottom: 1px solid var(--color-line);
            display: flex;
            align-items: center;
            justify-content: space-between;
            color: var(--color-text);
        }

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

        .mobile-menu a.active {
            color: var(--color-accent);
        }

        .mobile-menu .nav-cta {
            margin-top: 16px;
            justify-content: center;
            font-size: 1rem;
            padding: 14px 20px;
        }

        .mobile-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: rgba(10, 10, 10, 0.45);
            z-index: 1050;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
        }

        .mobile-overlay.show {
            opacity: 1;
            pointer-events: auto;
        }

        /* ============ 页面通用标题 ============ */
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--color-accent);
            margin-bottom: 12px;
        }

        .section-label::before {
            content: '';
            width: 16px;
            height: 2px;
            background: var(--color-accent);
            display: inline            display: inline-block;
        }

        /* ============ Hero 区块 ============ */
        .hero-data {
            position: relative;
            padding: 140px 0 80px;
            background: var(--color-primary);
            color: #fff;
            overflow: hidden;
        }

        .hero-data::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 50%;
            height: 100%;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.18;
            pointer-events: none;
        }

        .hero-data::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 6px;
            background: linear-gradient(90deg, var(--color-accent), var(--color-accent-alt), var(--color-accent));
        }

        .hero-data .container {
            position: relative;
            z-index: 1;
        }

        .hero-data-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: center;
        }

        .hero-data h1 {
            font-size: clamp(2.4rem, 5vw, 3.8rem);
            font-weight: 800;
            line-height: 1.12;
            letter-spacing: -0.02em;
            color: #fff;
            margin-bottom: 20px;
        }

        .hero-data h1 .highlight {
            color: var(--color-accent);
            position: relative;
        }

        .hero-data-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.78);
            max-width: 560px;
            margin-bottom: 32px;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 24px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
        }

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

        .btn-primary:hover {
            background: #e64a1a;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 12px 24px rgba(255, 85, 32, 0.35);
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.4);
        }

        .btn-outline-light:hover {
            border-color: #fff;
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-2px);
        }

        .btn i {
            font-size: 0.85rem;
            transition: transform 0.25s ease;
        }

        .btn:hover i {
            transform: translateX(3px);
        }

        .hero-metrics-mini {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            backdrop-filter: blur(8px);
        }

        .hero-metric-mini {
            text-align: center;
        }

        .hero-metric-mini .metric-value {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-accent-alt);
            letter-spacing: -0.02em;
            line-height: 1.1;
        }

        .hero-metric-mini .metric-label {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 4px;
        }

        /* ============ 指标卡区域 ============ */
        .metrics-section {
            padding: var(--section-space) 0;
            background: var(--color-bg);
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 32px;
        }

        .metric-card {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .metric-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--card-accent, var(--color-accent));
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .metric-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: #d5d0c7;
        }

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

        .metric-card .metric-icon {
            font-size: 1.4rem;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(255, 85, 32, 0.08);
            color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 14px;
        }

        .metric-card .metric-value {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--color-text);
            line-height: 1.1;
        }

        .metric-card .metric-value .unit {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-muted);
            margin-left: 2px;
        }

        .metric-card .metric-label {
            font-size: 0.88rem;
            color: var(--color-muted);
            margin-top: 6px;
        }

        .metric-card .metric-change {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.8rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            margin-top: 12px;
        }

        .metric-change.up {
            color: #3d7a1f;
            background: rgba(198, 240, 76, 0.2);
        }

        .metric-change.down {
            color: #b34a1f;
            background: rgba(255, 85, 32, 0.1);
        }

        .metric-card:nth-child(1) {
            --card-accent: var(--color-accent);
            transform: translateY(6px);
        }

        .metric-card:nth-child(2) {
            --card-accent: var(--color-accent-alt);
            transform: translateY(-6px);
        }

        .metric-card:nth-child(3) {
            --card-accent: var(--color-accent);
            transform: translateY(6px);
        }

        .metric-card:nth-child(4) {
            --card-accent: var(--color-accent-alt);
            transform: translateY(-6px);
        }

        .metric-card:hover {
            transform: translateY(-8px);
        }

        /* ============ 数据对比表 ============ */
        .data-table-section {
            padding: var(--section-space) 0;
            background: #fff;
        }

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

        .table-heading h2 {
            font-size: clamp(1.6rem, 2.6vw, 2.1rem);
            font-weight: 800;
            letter-spacing: -0.01em;
            line-height: 1.2;
            color: var(--color-text);
        }

        .table-heading .table-note {
            font-size: 0.85rem;
            color: var(--color-muted);
        }

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

        .data-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.92rem;
            min-width: 760px;
        }

        .data-table thead {
            background: var(--color-primary);
            color: #fff;
        }

        .data-table thead th {
            padding: 16px 18px;
            text-align: left;
            font-weight: 600;
            font-size: 0.85rem;
            letter-spacing: 0.03em;
            white-space: nowrap;
        }

        .data-table tbody tr {
            border-bottom: 1px solid var(--color-line);
            transition: background 0.2s ease;
        }

        .data-table tbody tr:nth-child(even) {
            background: #faf9f6;
        }

        .data-table tbody tr:hover {
            background: #f0ede7;
        }

        .data-table tbody td {
            padding: 14px 18px;
            color: var(--color-text);
            white-space: nowrap;
        }

        .data-table tbody td:first-child {
            font-weight: 600;
        }

        .data-table .positive-change {
            color: #3d7a1f;
            font-weight: 700;
        }

        .data-table .negative-change {
            color: var(--color-accent);
            font-weight: 700;
        }

        .data-table .neutral-change {
            color: var(--color-muted);
        }

        /* ============ 解读长文 ============ */
        .analysis-section {
            padding: var(--section-space) 0;
            background: var(--color-bg);
        }

        .analysis-layout {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 48px;
            align-items: start;
        }

        .analysis-sidebar {
            position: sticky;
            top: 100px;
        }

        .analysis-sidebar .toc-card {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }

        .analysis-sidebar .toc-card h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--color-text);
        }

        .analysis-sidebar .toc-card a {
            display: block;
            padding: 10px 0;
            font-size: 0.9rem;
            color: var(--color-muted);
            border-bottom: 1px solid var(--color-line);
            transition: color 0.25s ease, padding-left 0.25s ease;
        }

        .analysis-sidebar .toc-card a:last-child {
            border-bottom: none;
        }

        .analysis-sidebar .toc-card a:hover {
            color: var(--color-accent);
            padding-left: 8px;
        }

        .analysis-content h2 {
            font-size: 1.7rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--color-text);
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .analysis-content h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--color-text);
            margin: 28px 0 12px;
            line-height: 1.4;
        }

        .analysis-content p {
            color: var(--color-text);
            margin-bottom: 16px;
            max-width: 70ch;
            line-height: 1.8;
        }

        .analysis-content blockquote {
            border-left: 3px solid var(--color-accent);
            padding: 16px 20px;
            background: var(--color-surface);
            border-radius: 0 var(--radius-small) var(--radius-small) 0;
            margin: 20px 0;
            font-style: italic;
            color: var(--color-muted);
            box-shadow: var(--shadow-sm);
        }

        .analysis-content ul {
            list-style: none;
            padding: 0;
            margin: 16px 0;
        }

        .analysis-content ul li {
            padding: 8px 0 8px 24px;
            position: relative;
            color: var(--color-text);
            line-height: 1.7;
        }

        .analysis-content ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 17px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-accent);
        }

        /* ============ 底部 CTA ============ */
        .cta-section {
            padding: var(--section-space) 0;
            background: var(--color-primary);
            color: #fff;
            text-align: center;
        }

        .cta-section h2 {
            font-size: clamp(1.8rem, 3vw, 2.4rem);
            font-weight: 800;
            letter-spacing: -0.01em;
            color: #fff;
            margin-bottom: 16px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.7);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

        /* ============ 页脚 ============ */
        .footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.8fr 0.8fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand .logo {
            color: #fff;
            margin-bottom: 14px;
        }

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

        .footer-brand p {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
            max-width: 340px;
        }

        .footer-col h4 {
            font-size: 0.88rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.04em;
        }

        .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.65);
            padding: 6px 0;
            transition: color 0.25s ease, padding-left 0.25s ease;
        }

        .footer-col a:hover {
            color: #fff;
            padding-left: 6px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.55);
            justify-content: space-between;
            align-items: center;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.65);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

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

        /* ============ 底部固定转化条 ============ */
        .floating-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background: var(--color-primary);
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 12px 0;
            z-index: 900;
            transform: translateY(0);
            transition: transform 0.35s ease;
        }

        .floating-cta.hidden {
            transform: translateY(100%);
        }

        .floating-cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .floating-cta-text {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.8);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .floating-cta-text i {
            color: var(--color-accent-alt);
        }

        .floating-cta .btn {
            white-space: nowrap;
            padding: 10px 20px;
            font-size: 0.88rem;
        }

        /* ============ 响应式断点 ============ */
        @media (max-width: 1024px) {
            .hero-data-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

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

            .analysis-layout {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .analysis-sidebar {
                position: static;
            }

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

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

            .hamburger {
                display: flex;
            }

            .mobile-menu {
                display: flex;
            }

            .hero-data {
                padding: 110px 0 60px;
            }

            .hero-data h1 {
                font-size: clamp(2rem, 7vw, 2.8rem);
            }

            .hero-metrics-mini {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
                padding: 20px 16px;
            }

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

            .metric-card {
                transform: none !important;
            }

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

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

            .floating-cta-inner {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }

            .floating-cta-text {
                font-size: 0.82rem;
            }

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

        @media (max-width: 520px) {
            :root {
                --section-space: 40px;
            }

            .container {
                padding: 0 16px;
            }

            .hero-data {
                padding: 100px 0 48px;
            }

            .hero-data h1 {
                font-size: 1.9rem;
            }

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

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

            .hero-metrics-mini {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .data-table-wrapper {
                border-radius: var(--radius-small);
            }

            .table-heading {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category2 */
:root {
            --color-bg: #F5F2EC;
            --color-surface: #FFFFFF;
            --color-text: #101418;
            --color-muted: #6B716D;
            --color-primary: #101418;
            --color-accent: #FF5520;
            --color-accent-alt: #C6F04C;
            --color-line: #E7E4DE;
            --radius-card: 16px;
            --radius-small: 8px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(10, 10, 10, 0.04);
            --shadow-lg: 0 16px 40px rgba(10, 10, 10, 0.12);
            --section-space: 72px;
            --container-max: 1200px;
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', sans-serif;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.75;
            padding-bottom: 80px;
            overflow-x: hidden;
            margin: 0;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease;
        }
        a:hover {
            color: var(--color-accent);
        }
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: var(--font-sans);
            font-size: 1rem;
        }
        button {
            cursor: pointer;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            transition: background 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
            border-bottom: 1px solid transparent;
            background: transparent;
        }
        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.96);
            border-bottom: 1px solid var(--color-line);
            box-shadow: var(--shadow-sm);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 16px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.35rem;
            letter-spacing: -0.01em;
            color: var(--color-text);
            flex-shrink: 0;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--color-text);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 700;
            letter-spacing: -0.05em;
            transition: background 0.3s ease;
        }
        .logo:hover .logo-icon {
            background: var(--color-accent);
            color: #fff;
        }
        .logo:hover {
            color: var(--color-text);
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-desktop a {
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--color-text);
            padding: 6px 0;
            position: relative;
            white-space: nowrap;
            transition: color 0.25s ease;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-accent);
            transition: width 0.3s ease;
        }
        .nav-desktop a:hover {
            color: var(--color-accent);
        }
        .nav-desktop a:hover::after {
            width: 100%;
        }
        .nav-desktop a.active {
            color: var(--color-accent);
            font-weight: 700;
        }
        .nav-desktop a.active::after {
            width: 100%;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--color-accent);
            color: #fff !important;
            padding: 10px 18px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 0.9rem;
            transition: background 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
            white-space: nowrap;
        }
        .nav-cta:hover {
            background: #e64a1a;
            color: #fff !important;
            transform: translateY(-1px);
            box-shadow: 0 8px 16px rgba(255, 85, 32, 0.25);
        }
        .nav-cta::after {
            display: none !important;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
        }
        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-text);
            border-radius: 2px;
            transition: transform 0.3s ease, opacity 0.3s ease;
        }
        .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            width: 100%;
            max-width: 380px;
            height: 100vh;
            background: #fff;
            z-index: 1001;
            padding: 80px 32px 32px;
            box-shadow: -8px 0 30px rgba(0, 0, 0, 0.12);
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu a {
            font-size: 1.2rem;
            font-weight: 600;
            padding: 12px 0;
            border-bottom: 1px solid var(--color-line);
            color: var(--color-text);
        }
        .mobile-menu a.active {
            color: var(--color-accent);
        }
        .mobile-menu .nav-cta {
            margin-top: 16px;
            justify-content: center;
            font-size: 1rem;
        }
        .mobile-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: rgba(0, 0, 0, 0.35);
            z-index: 1000;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
        }
        .mobile-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }

        .page-hero {
            position: relative;
            min-height: 70vh;
            display: flex;
            align-items: center;
            overflow: hidden;
            padding: 100px 0 64px;
            background: var(--color-primary);
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-bg-img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.45;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(16, 20, 24, 0.85) 0%, rgba(16, 20, 24, 0.55) 100%);
            z-index: 1;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 85, 32, 0.18);
            color: #fff;
            border: 1px solid rgba(255, 85, 32, 0.45);
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
        }
        .page-hero h1 {
            font-size: clamp(2.6rem, 5.5vw, 4.2rem);
            font-weight: 800;
            color: #fff;
            line-height: 1.1;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
            max-width: 800px;
        }
        .page-hero .hero-sub {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            max-width: 660px;
            margin-bottom: 28px;
        }
        .hero-stats-row {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }
        .hero-stat {
            color: #fff;
        }
        .hero-stat .num {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--color-accent);
            display: block;
            line-height: 1;
        }
        .hero-stat .label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 6px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
        }
        .btn-primary {
            background: var(--color-accent);
            color: #fff;
        }
        .btn-primary:hover {
            background: #e64a1a;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(255, 85, 32, 0.3);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.4);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            border-color: #fff;
        }
        .btn-dark {
            background: var(--color-primary);
            color: #fff;
            border: 1px solid var(--color-primary);
        }
        .btn-dark:hover {
            background: #1e252e;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
        }

        .filter-section {
            background: var(--color-surface);
            padding: 16px 0;
            border-bottom: 1px solid var(--color-line);
            position: sticky;
            top: 68px;
            z-index: 100;
            box-shadow: var(--shadow-sm);
        }
        .filter-tabs {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }
        .filter-tab {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            border: 1px solid var(--color-line);
            background: #fff;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--color-muted);
            transition: all 0.25s ease;
            cursor: pointer;
            white-space: nowrap;
        }
        .filter-tab:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }
        .filter-tab.active {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            font-weight: 600;
        }
        .filter-tab .count {
            font-size: 0.75rem;
            opacity: 0.7;
            margin-left: 2px;
        }

        .gallery-main {
            padding: 48px 0 64px;
        }
        .gallery-section-title {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 28px;
            flex-wrap: wrap;
            gap: 12px;
        }
        .gallery-section-title h2 {
            font-size: clamp(1.6rem, 2.8vw, 2.1rem);
            font-weight: 800;
            letter-spacing: -0.01em;
            margin: 0;
            line-height: 1.2;
        }
        .gallery-section-title .sub-label {
            font-size: 0.88rem;
            color: var(--color-muted);
        }
        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 18px;
        }
        .gallery-card {
            grid-column: span 4;
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            box-shadow: var(--shadow-sm);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            cursor: pointer;
        }
        .gallery-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .gallery-card.card-tall {
            grid-column: span 5;
        }
        .gallery-card.card-wide {
            grid-column: span 7;
        }
        .gallery-card.card-square {
            grid-column: span 4;
        }
        .gallery-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 4 / 3;
        }
        .gallery-card.card-tall .card-img-wrap {
            aspect-ratio: 1 / 1;
        }
        .gallery-card.card-wide .card-img-wrap {
            aspect-ratio: 16 / 9;
        }
        .gallery-card.card-square .card-img-wrap {
            aspect-ratio: 1 / 1;
        }
        .gallery-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }
        .gallery-card:hover img {
            transform: scale(1.05);
        }
        .card-overlay-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(16, 20, 24, 0.75);
            color: #fff;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.4px;
            backdrop-filter: blur(4px);
        }
        .card-overlay-tag.tag-accent {
            background: var(--color-accent);
        }
        .card-overlay-tag.tag-green {
            background: #6a9f2e;
        }
        .gallery-card .card-info {
            padding: 16px 18px;
        }
        .gallery-card .card-info h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin: 0 0 4px;
            line-height: 1.35;
        }
        .gallery-card .card-info p {
            font-size: 0.88rem;
            color: var(--color-muted);
            margin: 0;
            line-height: 1.6;
        }
        .gallery-card .card-download {
            position: absolute;
            top: 12px;
            right: 12px;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.9);
            border: none;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-text);
            transition: all 0.3s ease;
            cursor: pointer;
            opacity: 0;
            transform: translateY(4px);
        }
        .gallery-card:hover .card-download {
            opacity: 1;
            transform: translateY(0);
        }
        .gallery-card .card-download:hover {
            background: var(--color-accent);
            color: #fff;
        }

        .pagination-section {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 8px;
            margin-top: 40px;
            flex-wrap: wrap;
        }
        .page-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 12px;
            border-radius: var(--radius-small);
            border: 1px solid var(--color-line);
            background: #fff;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-text);
            transition: all 0.25s ease;
            cursor: pointer;
        }
        .page-btn:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }
        .page-btn.active {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }
        .page-btn.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        .featured-banner {
            background: var(--color-primary);
            padding: 48px 0;
            color: #fff;
            margin-bottom: 0;
        }
        .featured-banner .container {
            display: flex;
            align-items: center;
            gap: 40px;
            flex-wrap: wrap;
        }
        .featured-banner .fb-text {
            flex: 1;
            min-width: 280px;
        }
        .featured-banner .fb-text h2 {
            font-size: clamp(1.6rem, 2.6vw, 2.2rem);
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .featured-banner .fb-text p {
            color: rgba(255, 255, 255, 0.8);
            margin: 0;
            max-width: 550px;
        }
        .featured-banner .fb-img {
            flex: 0 0 280px;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .featured-banner .fb-img img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }

        .usage-section {
            padding: 64px 0;
            background: var(--color-bg);
        }
        .usage-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .usage-card {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
        }
        .usage-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: #d5d0c8;
        }
        .usage-card .usage-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(255, 85, 32, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--color-accent);
            margin-bottom: 16px;
        }
        .usage-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin: 0 0 8px;
        }
        .usage-card p {
            font-size: 0.92rem;
            color: var(--color-muted);
            margin: 0;
            line-height: 1.7;
        }

        .gallery-faq {
            padding: 64px 0;
            background: #fff;
            border-top: 1px solid var(--color-line);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--color-line);
            padding: 0;
        }
        .faq-item:first-child {
            border-top: 1px solid var(--color-line);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 20px 0;
            text-align: left;
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            transition: color 0.25s ease;
        }
        .faq-question:hover {
            color: var(--color-accent);
        }
        .faq-question .faq-icon {
            font-size: 0.8rem;
            transition: transform 0.3s ease;
            flex-shrink: 0;
            color: var(--color-muted);
        }
        .faq-item.active .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--color-accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }
        .faq-item.active .faq-answer {
            max-height: 400px;
        }
        .faq-answer-inner {
            padding: 0 0 20px;
            font-size: 0.92rem;
            color: var(--color-muted);
            line-height: 1.7;
            border-left: 3px solid var(--color-accent);
            padding-left: 16px;
            margin-left: 4px;
        }

        .cta-dark {
            background: var(--color-primary);
            padding: 64px 0;
            text-align: center;
            color: #fff;
        }
        .cta-dark h2 {
            font-size: clamp(1.8rem, 3vw, 2.6rem);
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }
        .cta-dark p {
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            margin: 0 auto 28px;
            font-size: 1.05rem;
        }

        .footer {
            background: var(--color-primary);
            color: #fff;
            padding: 48px 0 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-brand .logo-icon {
            background: var(--color-accent);
        }
        .footer-brand p {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
            max-width: 340px;
            margin: 0;
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 14px;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.88rem;
            padding: 5px 0;
            transition: color 0.25s ease;
        }
        .footer-col a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 18px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom a:hover {
            color: var(--color-accent);
        }

        .bottom-fixed-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background: #0d0f12;
            color: #fff;
            z-index: 900;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            padding: 10px 20px;
            box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.18);
            font-size: 0.9rem;
        }
        .bottom-fixed-bar .bf-text {
            font-weight: 500;
            color: rgba(255, 255, 255, 0.85);
        }
        .bottom-fixed-bar .bf-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--color-accent);
            color: #fff;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 0.88rem;
            transition: all 0.3s ease;
        }
        .bottom-fixed-bar .bf-btn:hover {
            background: #e64a1a;
            color: #fff;
            transform: translateY(-1px);
        }

        @media (max-width: 1024px) {
            .nav-desktop {
                gap: 18px;
            }
            .nav-desktop a {
                font-size: 0.85rem;
            }
            .gallery-card.card-tall {
                grid-column: span 6;
            }
            .gallery-card.card-wide {
                grid-column: span 6;
            }
            .gallery-card.card-square {
                grid-column: span 6;
            }
            .gallery-card {
                grid-column: span 6;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .nav-desktop {
                display: none;
            }
            .page-hero {
                min-height: 60vh;
                padding: 80px 0 40px;
            }
            .page-hero h1 {
                font-size: clamp(2rem, 5vw, 2.8rem);
            }
            .hero-stats-row {
                gap: 20px;
            }
            .hero-stat .num {
                font-size: 1.5rem;
            }
            .gallery-grid {
                grid-template-columns: repeat(1, 1fr);
                gap: 14px;
            }
            .gallery-card,
            .gallery-card.card-tall,
            .gallery-card.card-wide,
            .gallery-card.card-square {
                grid-column: span 1;
            }
            .gallery-card .card-img-wrap,
            .gallery-card.card-tall .card-img-wrap,
            .gallery-card.card-wide .card-img-wrap,
            .gallery-card.card-square .card-img-wrap {
                aspect-ratio: 4 / 3;
            }
            .usage-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .bottom-fixed-bar {
                font-size: 0.8rem;
                padding: 8px 14px;
            }
            .bottom-fixed-bar .bf-text {
                display: none;
            }
            .filter-section {
                top: 60px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .page-hero h1 {
                font-size: 1.9rem;
            }
            .hero-sub {
                font-size: 1rem;
            }
            .btn {
                padding: 12px 20px;
                font-size: 0.85rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .filter-tabs {
                gap: 6px;
            }
            .filter-tab {
                padding: 6px 12px;
                font-size: 0.8rem;
            }
            .gallery-card .card-download {
                opacity: 1;
                transform: translateY(0);
            }
            .featured-banner .fb-img {
                flex: 1 1 100%;
            }
        }

/* roulang page: category6 */
:root {
        --color-bg: #F5F2EC;
        --color-surface: #FFFFFF;
        --color-text: #101418;
        --color-muted: #6B716D;
        --color-primary: #101418;
        --color-accent: #FF5520;
        --color-accent-alt: #C6F04C;
        --color-line: #E7E4DE;
        --radius-card: 16px;
        --radius-small: 8px;
        --radius-pill: 999px;
        --shadow-sm: 0 2px 8px rgba(10, 10, 10, 0.04);
        --shadow-lg: 0 16px 40px rgba(10, 10, 10, 0.12);
        --section-space: 72px;
        --container-max: 1200px;
        --font-sans: 'Noto Sans SC', 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', sans-serif;
    }

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

    body {
        font-family: var(--font-sans);
        background: var(--color-bg);
        color: var(--color-text);
        line-height: 1.75;
        padding-bottom: 80px;
        overflow-x: hidden;
        margin: 0;
    }

    a {
        color: inherit;
        text-decoration: none;
        transition: color 0.25s ease, border-color 0.25s ease;
    }

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

    a:focus-visible {
        outline: 2px solid var(--color-accent);
        outline-offset: 2px;
        border-radius: 2px;
    }

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

    button, input, textarea, select {
        font-family: var(--font-sans);
        font-size: 1rem;
    }

    button {
        cursor: pointer;
    }

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

    /* ============ 导航 ============ */
    .site-header {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        z-index: 1000;
        transition: background 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
        border-bottom: 1px solid transparent;
        background: transparent;
        padding: 0;
    }

    .site-header.scrolled {
        background: rgba(255, 255, 255, 0.97);
        border-bottom: 1px solid var(--color-line);
        box-shadow: var(--shadow-sm);
    }

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

    .logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-weight: 800;
        font-size: 1.35rem;
        letter-spacing: -0.01em;
        color: var(--color-text);
        flex-shrink: 0;
    }

    .logo-icon {
        width: 36px;
        height: 36px;
        border-radius: 8px;
        background: var(--color-text);
        color: #fff;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.1rem;
        font-weight: 700;
        letter-spacing: -0.05em;
        transition: background 0.3s ease;
    }

    .logo:hover .logo-icon {
        background: var(--color-accent);
        color: #fff;
    }

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

    .nav-desktop {
        display: flex;
        align-items: center;
        gap: 24px;
    }

    .nav-desktop a {
        font-size: 0.9rem;
        font-weight: 500;
        color: var(--color-text);
        padding: 6px 0;
        position: relative;
        white-space: nowrap;
        transition: color 0.25s ease;
    }

    .nav-desktop a::after {
        content: '';
        position: absolute;
        bottom: -2px;
        left: 0;
        width: 0;
        height: 2px;
        background: var(--color-accent);
        transition: width 0.3s ease;
    }

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

    .nav-desktop a:hover::after {
        width: 100%;
    }

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

    .nav-desktop a.active::after {
        width: 100%;
    }

    .nav-cta {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: var(--color-accent);
        color: #fff !important;
        padding: 10px 18px;
        border-radius: var(--radius-pill);
        font-weight: 600;
        font-size: 0.9rem;
        transition: background 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
        white-space: nowrap;
    }

    .nav-cta:hover {
        background: #e64a1a;
        color: #fff !important;
        transform: translateY(-1px);
        box-shadow: 0 8px 16px rgba(255, 85, 32, 0.25);
    }

    .nav-cta::after {
        display: none !important;
    }

    .hamburger {
        display: none;
        flex-direction: column;
        gap: 5px;
        background: none;
        border: none;
        padding: 8px;
        cursor: pointer;
    }

    .hamburger span {
        display: block;
        width: 24px;
        height: 2px;
        background: var(--color-text);
        border-radius: 2px;
        transition: transform 0.3s ease, opacity 0.3s ease;
    }

    .hamburger.active span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .mobile-menu {
        display: none;
        position: fixed;
        top: 0;
        right: 0;
        width: 100%;
        max-width: 380px;
        height: 100vh;
        background: #fff;
        z-index: 999;
        padding: 90px 28px 40px;
        flex-direction: column;
        gap: 6px;
        overflow-y: auto;
        box-shadow: -20px 0 60px rgba(0,0,0,0.12);
        transition: transform 0.35s ease;
    }

    .mobile-menu.open {
        display: flex;
        transform: translateX(0);
    }

    .mobile-menu.closed {
        transform: translateX(100%);
    }

    .mobile-menu a {
        font-size: 1.1rem;
        font-weight: 600;
        padding: 14px 0;
        border-bottom: 1px solid var(--color-line);
        color: var(--color-text);
    }

    .mobile-menu a.active {
        color: var(--color-accent);
    }

    .mobile-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: rgba(0,0,0,0.4);
        z-index: 998;
    }

    .mobile-overlay.show {
        display: block;
    }

    /* ============ 杂志封面区 ============ */
    .mag-hero {
        min-height: 88vh;
        display: flex;
        align-items: flex-end;
        position: relative;
        overflow: hidden;
        background: var(--color-primary);
        margin-top: 0;
        padding: 140px 0 70px;
    }

    .mag-hero-bg {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        opacity: 0.35;
    }

    .mag-hero-overlay {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: linear-gradient(180deg, rgba(16,20,24,0.4) 0%, rgba(16,20,24,0.85) 70%, rgba(16,20,24,0.95) 100%);
    }

    .mag-hero-content {
        position: relative;
        z-index: 2;
        max-width: 820px;
        color: #fff;
    }

    .mag-tag-row {
        display: flex;
        align-items: center;
        gap: 12px;
        flex-wrap: wrap;
        margin-bottom: 20px;
    }

    .mag-tag {
        display: inline-block;
        padding: 5px 14px;
        border-radius: var(--radius-pill);
        font-size: 0.78rem;
        font-weight: 600;
        letter-spacing: 0.03em;
        background: rgba(255, 255, 255, 0.15);
        color: #fff;
        backdrop-filter: blur(4px);
        border: 1px solid rgba(255,255,255,0.2);
    }

    .mag-tag.accent {
        background: var(--color-accent);
        border-color: var(--color-accent);
        color: #fff;
    }

    .mag-hero h1 {
        font-size: clamp(2.2rem, 4.5vw, 3.8rem);
        line-height: 1.12;
        font-weight: 800;
        letter-spacing: -0.02em;
        color: #fff;
        margin-bottom: 20px;
    }

    .mag-hero .article-meta {
        display: flex;
        align-items: center;
        gap: 16px;
        font-size: 0.88rem;
        color: rgba(255,255,255,0.7);
        flex-wrap: wrap;
        margin-bottom: 18px;
    }

    .mag-hero .article-meta i {
        color: var(--color-accent);
        margin-right: 4px;
    }

    .mag-hero-excerpt {
        font-size: 1.1rem;
        line-height: 1.7;
        color: rgba(255,255,255,0.85);
        max-width: 680px;
    }

    /* ============ 目录导航 ============ */
    .toc-section {
        background: var(--color-surface);
        border-bottom: 1px solid var(--color-line);
        position: sticky;
        top: 68px;
        z-index: 500;
        padding: 14px 0;
        box-shadow: 0 2px 8px rgba(0,0,0,0.03);
    }

    .toc-nav {
        display: flex;
        align-items: center;
        gap: 8px;
        flex-wrap: wrap;
        overflow-x: auto;
        padding: 0;
        scrollbar-width: none;
    }

    .toc-nav::-webkit-scrollbar {
        display: none;
    }

    .toc-nav a {
        font-size: 0.82rem;
        font-weight: 600;
        color: var(--color-muted);
        padding: 8px 16px;
        border-radius: var(--radius-pill);
        border: 1px solid var(--color-line);
        white-space: nowrap;
        transition: all 0.25s ease;
        background: var(--color-surface);
    }

    .toc-nav a:hover {
        color: var(--color-accent);
        border-color: var(--color-accent);
        background: rgba(255,85,32,0.04);
    }

    .toc-nav a.active {
        color: #fff;
        background: var(--color-primary);
        border-color: var(--color-primary);
    }

    /* ============ 章节阅读 ============ */
    .article-body {
        padding: var(--section-space) 0;
    }

    .article-layout {
        display: grid;
        grid-template-columns: 1fr;
        gap: 40px;
        max-width: 860px;
        margin: 0 auto;
    }

    .chapter-block {
        margin-bottom: 20px;
    }

    .chapter-head {
        display: flex;
        align-items: flex-start;
        gap: 18px;
        margin-bottom: 20px;
    }

    .chapter-num {
        flex-shrink: 0;
        width: 48px;
        height: 48px;
        border-radius: 12px;
        background: var(--color-primary);
        color: #fff;
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: 800;
        font-size: 1.2rem;
        letter-spacing: -0.03em;
    }

    .chapter-title-wrap h2 {
        font-size: clamp(1.5rem, 2.5vw, 2rem);
        font-weight: 800;
        letter-spacing: -0.01em;
        line-height: 1.25;
        margin: 0;
        color: var(--color-text);
    }

    .chapter-title-wrap .chapter-sub {
        font-size: 0.9rem;
        color: var(--color-muted);
        margin-top: 4px;
    }

    .chapter-block p {
        font-size: 1rem;
        line-height: 1.85;
        color: #2a2d30;
        margin-bottom: 18px;
        max-width: 70ch;
    }

    .chapter-block .highlight-callout {
        background: var(--color-surface);
        border-left: 4px solid var(--color-accent);
        padding: 20px 24px;
        border-radius: 0 var(--radius-card) var(--radius-card) 0;
        box-shadow: var(--shadow-sm);
        margin: 24px 0;
        font-size: 1rem;
        line-height: 1.8;
        color: var(--color-text);
    }

    .chapter-block .highlight-callout strong {
        color: var(--color-accent);
    }

    .chapter-block ul, .chapter-block ol {
        margin: 16px 0 22px;
        padding-left: 22px;
    }

    .chapter-block ul li, .chapter-block ol li {
        margin-bottom: 10px;
        line-height: 1.8;
        font-size: 0.98rem;
    }

    .chapter-block ul li::marker {
        color: var(--color-accent);
    }

    /* ============ 数据可视化区 ============ */
    .viz-section {
        background: var(--color-surface);
        border-radius: var(--radius-card);
        padding: 32px 28px;
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--color-line);
        margin: 30px 0;
    }

    .viz-section h3 {
        font-size: 1.25rem;
        font-weight: 700;
        margin-bottom: 18px;
        color: var(--color-text);
    }

    .bar-chart {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }

    .bar-item {
        display: grid;
        grid-template-columns: 90px 1fr 50px;
        align-items: center;
        gap: 12px;
    }

    .bar-item .bar-label {
        font-size: 0.85rem;
        font-weight: 600;
        color: var(--color-muted);
        text-align: right;
    }

    .bar-item .bar-track {
        height: 28px;
        background: #f0ede6;
        border-radius: 6px;
        overflow: hidden;
        position: relative;
    }

    .bar-item .bar-fill {
        height: 100%;
        border-radius: 6px;
        background: var(--color-accent);
        transition: width 0.8s ease;
        display: flex;
        align-items: center;
        justify-content: flex-end;
        padding-right: 8px;
        min-width: 35px;
    }

    .bar-item .bar-fill span {
        font-size: 0.75rem;
        font-weight: 700;
        color: #fff;
        white-space: nowrap;
    }

    .bar-item .bar-value {
        font-size: 0.9rem;
        font-weight: 700;
        color: var(--color-text);
    }

    .bar-item:nth-child(1) .bar-fill { background: #FF5520; }
    .bar-item:nth-child(2) .bar-fill { background: #E84A1A; }
    .bar-item:nth-child(3) .bar-fill { background: #D03F14; }
    .bar-item:nth-child(4) .bar-fill { background: #B3330E; }
    .bar-item:nth-child(5) .bar-fill { background: #992B08; }

    .stat-grid-mini {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
        margin-top: 20px;
    }

    .stat-mini {
        text-align: center;
        padding: 18px 12px;
        border-radius: 10px;
        background: var(--color-bg);
        border: 1px solid var(--color-line);
    }

    .stat-mini .stat-num {
        font-size: 2rem;
        font-weight: 800;
        color: var(--color-accent);
        letter-spacing: -0.02em;
        line-height: 1.2;
    }

    .stat-mini .stat-desc {
        font-size: 0.8rem;
        color: var(--color-muted);
        margin-top: 4px;
    }

    /* ============ 相关资讯卡片 ============ */
    .related-section {
        padding: var(--section-space) 0;
        background: var(--color-surface);
        border-top: 1px solid var(--color-line);
        border-bottom: 1px solid var(--color-line);
    }

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

    .section-head .section-eyebrow {
        font-size: 0.78rem;
        font-weight: 700;
        letter-spacing: 0.06em;
        color: var(--color-accent);
        text-transform: uppercase;
        margin-bottom: 8px;
    }

    .section-head h2 {
        font-size: clamp(1.6rem, 3vw, 2.2rem);
        font-weight: 800;
        letter-spacing: -0.01em;
        line-height: 1.2;
        color: var(--color-text);
        margin: 0;
    }

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

    .related-card {
        background: var(--color-bg);
        border-radius: var(--radius-card);
        overflow: hidden;
        border: 1px solid var(--color-line);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        display: flex;
        flex-direction: column;
    }

    .related-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-lg);
        border-color: #d5d1c8;
    }

    .related-card img {
        aspect-ratio: 16/10;
        object-fit: cover;
        transition: transform 0.35s ease;
    }

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

    .related-card-body {
        padding: 20px 22px 24px;
        flex: 1;
        display: flex;
        flex-direction: column;
    }

    .related-card-tag {
        font-size: 0.75rem;
        font-weight: 600;
        color: var(--color-accent);
        margin-bottom: 8px;
        letter-spacing: 0.02em;
    }

    .related-card h3 {
        font-size: 1.05rem;
        font-weight: 700;
        line-height: 1.4;
        margin-bottom: 10px;
        color: var(--color-text);
    }

    .related-card p {
        font-size: 0.9rem;
        color: var(--color-muted);
        line-height: 1.65;
        margin-bottom: 16px;
        flex: 1;
    }

    .related-card .card-link {
        font-size: 0.88rem;
        font-weight: 600;
        color: var(--color-accent);
        display: inline-flex;
        align-items: center;
        gap: 6px;
        transition: gap 0.25s ease;
    }

    .related-card .card-link:hover {
        gap: 10px;
        color: #e64a1a;
    }

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

    .faq-list {
        max-width: 760px;
        margin: 0 auto;
    }

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

    .faq-item button.faq-question {
        width: 100%;
        text-align: left;
        background: none;
        border: none;
        padding: 18px 22px;
        font-size: 1rem;
        font-weight: 600;
        color: var(--color-text);
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        transition: color 0.25s ease;
    }

    .faq-item button.faq-question:hover {
        color: var(--color-accent);
    }

    .faq-item button.faq-question .faq-icon {
        flex-shrink: 0;
        width: 28px;
        height: 28px;
        border-radius: 50%;
        background: var(--color-bg);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 0.75rem;
        color: var(--color-text);
        transition: all 0.3s ease;
    }

    .faq-item.open button.faq-question .faq-icon {
        background: var(--color-accent);
        color: #fff;
        transform: rotate(45deg);
    }

    .faq-item .faq-answer {
        display: none;
        padding: 0 22px 20px;
        font-size: 0.92rem;
        line-height: 1.75;
        color: var(--color-muted);
    }

    .faq-item.open .faq-answer {
        display: block;
        border-left: 3px solid var(--color-accent);
        margin-left: 22px;
        padding-left: 16px;
        padding-bottom: 16px;
    }

    /* ============ 底部CTA ============ */
    .bottom-cta-section {
        padding: var(--section-space) 0;
        background: var(--color-primary);
        color: #fff;
    }

    .bottom-cta-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 32px;
        flex-wrap: wrap;
    }

    .bottom-cta-text h2 {
        font-size: clamp(1.6rem, 3vw, 2.4rem);
        font-weight: 800;
        letter-spacing: -0.01em;
        line-height: 1.25;
        margin-bottom: 12px;
        color: #fff;
    }

    .bottom-cta-text p {
        font-size: 1rem;
        color: rgba(255,255,255,0.75);
        max-width: 520px;
        margin: 0;
    }

    .bottom-cta-actions {
        display: flex;
        gap: 14px;
        flex-wrap: wrap;
    }

    .btn-primary {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: var(--color-accent);
        color: #fff;
        padding: 14px 28px;
        border-radius: var(--radius-pill);
        font-weight: 600;
        font-size: 1rem;
        border: none;
        transition: background 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    }

    .btn-primary:hover {
        background: #e64a1a;
        transform: translateY(-2px);
        box-shadow: 0 10px 24px rgba(255,85,32,0.3);
        color: #fff;
    }

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

    .btn-secondary {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: transparent;
        color: #fff;
        padding: 13px 26px;
        border-radius: var(--radius-pill);
        font-weight: 600;
        font-size: 1rem;
        border: 1px solid rgba(255,255,255,0.4);
        transition: all 0.3s ease;
    }

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

    /* ============ 页脚 ============ */
    .footer {
        background: var(--color-primary);
        color: rgba(255,255,255,0.7);
        padding: 60px 0 30px;
        border-top: 1px solid rgba(255,255,255,0.08);
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.4fr 1fr 1fr 1fr;
        gap: 36px;
        margin-bottom: 40px;
    }

    .footer-brand .logo {
        color: #fff;
        margin-bottom: 14px;
    }

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

    .footer-brand p {
        font-size: 0.9rem;
        line-height: 1.7;
        color: rgba(255,255,255,0.6);
        margin: 0;
    }

    .footer-col h4 {
        font-size: 0.95rem;
        font-weight: 700;
        color: #fff;
        margin-bottom: 16px;
        letter-spacing: 0.02em;
    }

    .footer-col a {
        display: block;
        font-size: 0.88rem;
        color: rgba(255,255,255,0.65);
        padding: 5px 0;
        transition: color 0.25s ease;
    }

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

    .footer-bottom {
        border-top: 1px solid rgba(255,255,255,0.1);
        padding-top: 22px;
        display: flex;
        flex-direction: column;
        gap: 8px;
        font-size: 0.82rem;
        color: rgba(255,255,255,0.5);
    }

    .footer-bottom a {
        color: rgba(255,255,255,0.65);
    }

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

    /* ============ 底部固定转化条 ============ */
    .sticky-cta {
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        background: rgba(16,20,24,0.97);
        color: #fff;
        z-index: 900;
        padding: 12px 20px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        border-top: 2px solid var(--color-accent);
        transform: translateY(100%);
        transition: transform 0.4s ease;
    }

    .sticky-cta.show {
        transform: translateY(0);
    }

    .sticky-cta p {
        margin: 0;
        font-size: 0.9rem;
        color: rgba(255,255,255,0.85);
        flex: 1;
    }

    .sticky-cta p strong {
        color: var(--color-accent);
    }

    .sticky-cta .btn-primary {
        padding: 10px 20px;
        font-size: 0.88rem;
        white-space: nowrap;
    }

    /* ============ 响应式 ============ */
    @media (max-width: 1024px) {
        .related-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 18px;
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .nav-desktop {
            gap: 16px;
        }
        .nav-desktop a {
            font-size: 0.82rem;
        }
    }

    @media (max-width: 768px) {
        .nav-desktop {
            display: none;
        }
        .hamburger {
            display: flex;
        }
        :root {
            --section-space: 40px;
        }
        .mag-hero {
            min-height: 70vh;
            padding: 110px 0 50px;
        }
        .mag-hero h1 {
            font-size: clamp(1.8rem, 5vw, 2.5rem);
        }
        .article-layout {
            gap: 28px;
        }
        .chapter-head {
            gap: 12px;
        }
        .chapter-num {
            width: 38px;
            height: 38px;
            font-size: 1rem;
            border-radius: 10px;
        }
        .bar-item {
            grid-template-columns: 65px 1fr 42px;
            gap: 8px;
        }
        .stat-grid-mini {
            grid-template-columns: 1fr;
            gap: 10px;
        }
        .related-grid {
            grid-template-columns: 1fr;
            gap: 16px;
        }
        .bottom-cta-inner {
            flex-direction: column;
            align-items: flex-start;
            gap: 20px;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 22px;
        }
        .sticky-cta {
            padding: 10px 14px;
            gap: 10px;
        }
        .sticky-cta p {
            font-size: 0.78rem;
        }
        .sticky-cta .btn-primary {
            padding: 8px 14px;
            font-size: 0.78rem;
        }
    }

    @media (max-width: 520px) {
        body {
            padding-bottom: 90px;
        }
        .container {
            padding: 0 14px;
        }
        .header-inner {
            min-height: 60px;
        }
        .logo {
            font-size: 1.15rem;
        }
        .logo-icon {
            width: 30px;
            height: 30px;
            font-size: 0.95rem;
        }
        .mag-hero {
            min-height: 65vh;
            padding: 100px 0 40px;
        }
        .mag-hero h1 {
            font-size: 1.7rem;
        }
        .mag-hero-excerpt {
            font-size: 0.95rem;
        }
        .chapter-title-wrap h2 {
            font-size: 1.3rem;
        }
        .chapter-block p {
            font-size: 0.92rem;
        }
        .toc-nav a {
            font-size: 0.75rem;
            padding: 6px 12px;
        }
        .related-card-body {
            padding: 16px 18px 20px;
        }
        .section-head h2 {
            font-size: 1.5rem;
        }
    }

    /* Foundation 覆盖 */
    .grid-x, .grid-container, .cell {
        box-sizing: border-box;
    }
    button:focus {
        outline: 2px solid var(--color-accent);
        outline-offset: 2px;
    }

/* roulang page: category4 */
:root {
            --color-bg: #F5F2EC;
            --color-surface: #FFFFFF;
            --color-text: #101418;
            --color-muted: #6B716D;
            --color-primary: #101418;
            --color-accent: #FF5520;
            --color-accent-alt: #C6F04C;
            --color-line: #E7E4DE;
            --radius-card: 16px;
            --radius-small: 8px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(10, 10, 10, 0.04);
            --shadow-lg: 0 16px 40px rgba(10, 10, 10, 0.12);
            --section-space: 72px;
            --container-max: 1200px;
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', sans-serif;
        }
        @media (max-width: 640px) {
            :root {
                --section-space: 40px;
            }
        }
        @media (min-width: 641px) and (max-width: 1024px) {
            :root {
                --section-space: 56px;
            }
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.75;
            padding-bottom: 80px;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease;
        }
        a:hover {
            color: var(--color-accent);
        }
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: var(--font-sans);
            font-size: 1rem;
        }
        button {
            cursor: pointer;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        /* ============ 导航 ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            transition: background 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
            border-bottom: 1px solid transparent;
            background: rgba(245, 242, 236, 0.95);
        }
        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.97);
            border-bottom: 1px solid var(--color-line);
            box-shadow: var(--shadow-sm);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 16px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.35rem;
            letter-spacing: -0.01em;
            color: var(--color-text);
            flex-shrink: 0;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--color-text);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 700;
            letter-spacing: -0.05em;
            transition: background 0.3s ease;
        }
        .logo:hover .logo-icon {
            background: var(--color-accent);
            color: #fff;
        }
        .logo:hover {
            color: var(--color-text);
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 24px;
        }
        .nav-desktop a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text);
            padding: 6px 0;
            position: relative;
            white-space: nowrap;
            transition: color 0.25s ease;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-accent);
            transition: width 0.3s ease;
        }
        .nav-desktop a:hover {
            color: var(--color-accent);
        }
        .nav-desktop a:hover::after {
            width: 100%;
        }
        .nav-desktop a.active {
            color: var(--color-accent);
            font-weight: 700;
        }
        .nav-desktop a.active::after {
            width: 100%;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--color-accent);
            color: #fff !important;
            padding: 10px 18px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 0.9rem;
            transition: background 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
            white-space: nowrap;
        }
        .nav-cta:hover {
            background: #e64a1a;
            color: #fff !important;
            transform: translateY(-1px);
            box-shadow: 0 8px 16px rgba(255, 85, 32, 0.25);
        }
        .nav-cta::after {
            display: none !important;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
        }
        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-text);
            border-radius: 2px;
            transition: transform 0.3s ease, opacity 0.3s ease;
        }
        .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            width: 100%;
            max-width: 380px;
            height: 100vh;
            background: #fff;
            z-index: 999;
            padding: 90px 28px 40px;
            overflow-y: auto;
            box-shadow: -12px 0 40px rgba(0, 0, 0, 0.12);
            transform: translateX(100%);
            transition: transform 0.35s ease;
        }
        .mobile-menu.open {
            transform: translateX(0);
        }
        .mobile-menu a {
            display: block;
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--color-text);
            padding: 14px 0;
            border-bottom: 1px solid var(--color-line);
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--color-accent);
        }
        .mobile-menu .nav-cta {
            margin-top: 24px;
            justify-content: center;
            font-size: 1rem;
            padding: 14px 20px;
        }
        .mobile-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.35);
            z-index: 998;
            opacity: 0;
            transition: opacity 0.35s ease;
        }
        .mobile-overlay.show {
            opacity: 1;
        }
        @media (max-width: 1024px) {
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-menu {
                display: block;
            }
            .mobile-overlay {
                display: block;
                pointer-events: none;
            }
            .mobile-overlay.show {
                pointer-events: auto;
            }
        }
        /* ============ Hero ============ */
        .page-hero {
            padding: 150px 0 64px;
            background: var(--color-primary);
            color: #fff;
            position: relative;
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.22;
            z-index: 0;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 120px;
            background: linear-gradient(to top, var(--color-primary), transparent);
            z-index: 1;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 24px;
        }
        .hero-breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
            transition: color 0.25s ease;
        }
        .hero-breadcrumb a:hover {
            color: #fff;
        }
        .hero-breadcrumb .separator {
            color: var(--color-accent);
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 85, 32, 0.18);
            border: 1px solid rgba(255, 85, 32, 0.4);
            color: #FFB39B;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 24px;
        }
        .page-hero h1 {
            font-size: clamp(2.4rem, 5vw, 4rem);
            font-weight: 800;
            line-height: 1.12;
            letter-spacing: -0.02em;
            color: #fff;
            margin-bottom: 20px;
            max-width: 800px;
        }
        .page-hero .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.82);
            line-height: 1.7;
            max-width: 640px;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 14px 28px;
            border-radius: var(--radius-pill);
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            text-decoration: none;
            line-height: 1.2;
        }
        .btn:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
        }
        .btn-primary {
            background: var(--color-accent);
            color: #fff;
        }
        .btn-primary:hover {
            background: #e64a1a;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(255, 85, 32, 0.3);
        }
        .btn-primary:active {
            transform: translateY(1px);
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.5);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            border-color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline-dark {
            background: transparent;
            color: var(--color-text);
            border: 1px solid var(--color-text);
        }
        .btn-outline-dark:hover {
            background: rgba(16, 20, 24, 0.05);
            color: var(--color-text);
            transform: translateY(-2px);
        }
        .btn-arrow {
            font-size: 0.75rem;
            transition: transform 0.25s ease;
        }
        .btn:hover .btn-arrow {
            transform: translateX(3px);
        }
        /* ============ 粘性目录 + 长文 ============ */
        .guide-section {
            padding: 56px 0 72px;
            background: var(--color-bg);
        }
        .guide-layout {
            display: grid;
            grid-template-columns: 260px 1fr;
            gap: 48px;
            align-items: start;
        }
        .sticky-nav {
            position: sticky;
            top: 100px;
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
        }
        .sticky-nav .sticky-nav-title {
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--color-muted);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--color-line);
        }
        .sticky-nav a {
            display: block;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--color-text);
            padding: 10px 12px;
            border-radius: var(--radius-small);
            transition: all 0.25s ease;
            border-left: 2px solid transparent;
        }
        .sticky-nav a:hover {
            background: rgba(255, 85, 32, 0.06);
            color: var(--color-accent);
            border-left-color: var(--color-accent);
        }
        .sticky-nav a.active {
            background: rgba(255, 85, 32, 0.08);
            color: var(--color-accent);
            font-weight: 700;
            border-left-color: var(--color-accent);
        }
        .guide-content {
            min-width: 0;
        }
        .guide-module {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 40px 36px;
            margin-bottom: 36px;
            box-shadow: var(--shadow-sm);
            scroll-margin-top: 100px;
        }
        .guide-module:last-child {
            margin-bottom: 0;
        }
        .guide-module h2 {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.01em;
            color: var(--color-text);
            margin-bottom: 20px;
        }
        .guide-module h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--color-text);
            margin-top: 28px;
            margin-bottom: 12px;
            line-height: 1.35;
        }
        .guide-module p {
            font-size: 1rem;
            line-height: 1.8;
            color: var(--color-text);
            margin-bottom: 16px;
            max-width: 70ch;
        }
        .guide-module p:last-child {
            margin-bottom: 0;
        }
        .guide-module ul {
            list-style: none;
            padding: 0;
            margin: 16px 0;
        }
        .guide-module ul li {
            font-size: 0.98rem;
            line-height: 1.7;
            color: var(--color-text);
            padding-left: 24px;
            position: relative;
            margin-bottom: 10px;
            max-width: 70ch;
        }
        .guide-module ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0.65em;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-accent);
            flex-shrink: 0;
        }
        .guide-module .module-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--color-accent);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .guide-module .module-image {
            margin: 24px 0 20px;
            border-radius: var(--radius-card);
            overflow: hidden;
            aspect-ratio: 16/9;
        }
        .guide-module .module-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .guide-module .module-image:hover img {
            transform: scale(1.03);
        }
        .blockquote {
            background: var(--color-primary);
            color: #fff;
            border-left: 5px solid var(--color-accent);
            padding: 32px 36px;
            border-radius: 0 var(--radius-card) var(--radius-card) 0;
            margin: 36px 0;
            position: relative;
        }
        .blockquote::before {
            content: '\201C';
            font-size: 4rem;
            font-weight: 800;
            color: rgba(255, 85, 32, 0.7);
            position: absolute;
            top: -8px;
            left: 24px;
            line-height: 1;
            font-family: Georgia, serif;
        }
        .blockquote p {
            font-size: 1.15rem;
            font-weight: 600;
            line-height: 1.7;
            color: #fff;
            margin: 0;
            padding-top: 12px;
            max-width: 60ch;
        }
        /* ============ 目录锚点高亮 ============ */
        .guide-anchor-marker {
            display: inline-block;
            width: 8px;
            height: 8px;
            background: var(--color-accent);
            border-radius: 50%;
            margin-right: 8px;
            vertical-align: middle;
        }
        /* ============ FAQ ============ */
        .faq-section {
            padding: 56px 0 72px;
            background: var(--color-bg);
            border-top: 1px solid var(--color-line);
        }
        .faq-section .section-heading {
            text-align: center;
            margin-bottom: 40px;
        }
        .faq-section .section-heading h2 {
            font-size: clamp(1.6rem, 2.5vw, 2.2rem);
            font-weight: 800;
            color: var(--color-text);
            letter-spacing: -0.01em;
            margin-bottom: 12px;
        }
        .faq-section .section-heading p {
            color: var(--color-muted);
            font-size: 1rem;
            max-width: 480px;
            margin: 0 auto;
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            margin-bottom: 14px;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow 0.3s ease, border-color 0.3s ease;
        }
        .faq-item:hover {
            box-shadow: var(--shadow-lg);
            border-color: #d5d0c7;
        }
        .faq-item.open {
            border-left: 3px solid var(--color-accent);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text);
            transition: color 0.25s ease;
            user-select: none;
        }
        .faq-question:hover {
            color: var(--color-accent);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            color: var(--color-text);
            transition: all 0.3s ease;
        }
        .faq-item.open .faq-icon {
            background: var(--color-accent);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--color-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        /* ============ CTA ============ */
        .cta-section {
            padding: 72px 0;
            background: var(--color-primary);
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 600px;
            height: 600px;
            transform: translate(-50%, -50%);
            background: radial-gradient(circle, rgba(255, 85, 32, 0.25), transparent 70%);
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: clamp(1.8rem, 3vw, 2.6rem);
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.01em;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 520px;
            margin: 0 auto 32px;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 14px;
        }
        /* ============ 底部转化条 ============ */
        .bottom-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background: var(--color-primary);
            color: #fff;
            z-index: 900;
            padding: 14px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
        }
        .bottom-bar .bar-text {
            font-size: 0.92rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.5;
        }
        .bottom-bar .btn {
            padding: 10px 22px;
            font-size: 0.88rem;
            flex-shrink: 0;
        }
        @media (max-width: 600px) {
            .bottom-bar {
                padding: 10px 14px;
                gap: 10px;
                height: 56px;
            }
            .bottom-bar .bar-text {
                font-size: 0.8rem;
                overflow: hidden;
                text-overflow: ellipsis;
                white-space: nowrap;
            }
            .bottom-bar .btn {
                padding: 8px 16px;
                font-size: 0.82rem;
            }
        }
        /* ============ 页脚 ============ */
        .footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 1.25rem;
            margin-bottom: 14px;
        }
        .footer-brand .logo:hover {
            color: #fff;
        }
        .footer-brand .logo-icon {
            background: var(--color-accent);
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 0.85rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.68);
            padding: 6px 0;
            transition: color 0.25s ease;
        }
        .footer-col a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 10px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.65);
            transition: color 0.25s ease;
        }
        .footer-bottom a:hover {
            color: var(--color-accent);
        }
        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            .guide-layout {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .sticky-nav {
                position: static;
                display: flex;
                flex-wrap: wrap;
                gap: 10px;
                align-items: center;
                padding: 16px;
            }
            .sticky-nav .sticky-nav-title {
                margin-bottom: 0;
                padding-bottom: 0;
                border-bottom: none;
                margin-right: 12px;
            }
            .sticky-nav a {
                display: inline-block;
                padding: 8px 14px;
                border-left: none;
                border-radius: var(--radius-pill);
                font-size: 0.85rem;
                background: var(--color-bg);
            }
            .sticky-nav a.active {
                background: rgba(255, 85, 32, 0.1);
            }
        }
        @media (max-width: 768px) {
            .page-hero {
                padding: 120px 0 48px;
                min-height: 420px;
            }
            .guide-module {
                padding: 28px 20px;
                margin-bottom: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-section {
                padding: 56px 0;
            }
        }
        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: clamp(1.8rem, 7vw, 2.4rem);
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .guide-module {
                padding: 22px 16px;
            }
            .blockquote {
                padding: 24px 20px;
                margin: 24px 0;
            }
            .blockquote p {
                font-size: 1rem;
                padding-top: 8px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 16px 18px;
            }
            .faq-answer {
                font-size: 0.9rem;
                padding: 0 18px;
            }
            .faq-item.open .faq-answer {
                padding: 0 18px 16px;
            }
        }

/* roulang page: category5 */
:root {
            --color-bg: #F5F2EC;
            --color-surface: #FFFFFF;
            --color-text: #101418;
            --color-muted: #6B716D;
            --color-primary: #101418;
            --color-accent: #FF5520;
            --color-accent-alt: #C6F04C;
            --color-line: #E7E4DE;
            --radius-card: 16px;
            --radius-small: 8px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(10, 10, 10, 0.04);
            --shadow-lg: 0 16px 40px rgba(10, 10, 10, 0.12);
            --section-space: 72px;
            --container-max: 1200px;
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', sans-serif;
        }
        @media (max-width: 1024px) {
            :root { --section-space: 56px; }
        }
        @media (max-width: 640px) {
            :root { --section-space: 40px; }
        }

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

        body {
            font-family: var(--font-sans);
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.75;
            padding-bottom: 80px;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease;
        }
        a:hover { color: var(--color-accent); }
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 2px;
        }

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

        button, input, textarea, select {
            font-family: var(--font-sans);
            font-size: 1rem;
        }
        button { cursor: pointer; }

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

        /* ============ 导航 ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            transition: background 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
            border-bottom: 1px solid transparent;
            background: transparent;
        }
        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.96);
            border-bottom: 1px solid var(--color-line);
            box-shadow: var(--shadow-sm);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 16px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.35rem;
            letter-spacing: -0.01em;
            color: var(--color-text);
            flex-shrink: 0;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--color-text);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 700;
            letter-spacing: -0.05em;
            transition: background 0.3s ease;
        }
        .logo:hover .logo-icon { background: var(--color-accent); color: #fff; }
        .logo:hover { color: var(--color-text); }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-desktop a {
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--color-text);
            padding: 6px 0;
            position: relative;
            white-space: nowrap;
            transition: color 0.25s ease;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--color-accent);
            transition: width 0.3s ease;
        }
        .nav-desktop a:hover { color: var(--color-accent); }
        .nav-desktop a:hover::after { width: 100%; }
        .nav-desktop a.active { color: var(--color-accent); font-weight: 700; }
        .nav-desktop a.active::after { width: 100%; }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--color-accent);
            color: #fff !important;
            padding: 10px 18px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 0.9rem;
            transition: background 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
            white-space: nowrap;
        }
        .nav-cta:hover {
            background: #e64a1a;
            color: #fff !important;
            transform: translateY(-1px);
            box-shadow: 0 8px 16px rgba(255, 85, 32, 0.25);
        }
        .nav-cta::after { display: none !important; }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
        }
        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-text);
            border-radius: 2px;
            transition: transform 0.3s ease, opacity 0.3s ease;
        }
        .hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
        .hamburger.active span:nth-child(2) { opacity: 0; }
        .hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            width: 100%;
            max-width: 380px;
            height: 100vh;
            background: var(--color-bg);
            z-index: 1100;
            padding: 90px 24px 24px;
            box-shadow: -16px 0 40px rgba(10, 10, 10, 0.12);
            overflow-y: auto;
        }
        .mobile-menu.active { display: block; }
        .mobile-menu a {
            display: block;
            padding: 14px 0;
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--color-text);
            border-bottom: 1px solid var(--color-line);
        }
        .mobile-menu a:hover { color: var(--color-accent); }
        .mobile-menu .nav-cta {
            display: inline-flex;
            margin-top: 20px;
            font-size: 1rem;
            padding: 12px 24px;
        }

        /* ============ 按钮 ============ */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-accent);
            color: #fff !important;
            padding: 12px 26px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            transition: background 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
            text-align: center;
            justify-content: center;
        }
        .btn-primary:hover {
            background: #e64a1a;
            color: #fff !important;
            transform: translateY(-2px);
            box-shadow: 0 12px 24px rgba(255, 85, 32, 0.3);
        }
        .btn-primary:active { transform: translateY(1px); }
        .btn-primary:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }
        .btn-primary i { transition: transform 0.3s ease; }
        .btn-primary:hover i { transform: translateX(3px); }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--color-text) !important;
            padding: 12px 26px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 0.95rem;
            border: 1px solid var(--color-text);
            transition: background 0.3s ease, transform 0.2s ease;
            text-align: center;
            justify-content: center;
        }
        .btn-secondary:hover {
            background: rgba(16, 20, 24, 0.05);
            color: var(--color-text) !important;
            transform: translateY(-1px);
        }
        .btn-secondary:active { transform: translateY(1px); }
        .btn-secondary i { transition: transform 0.3s ease; }
        .btn-secondary:hover i { transform: translateX(3px); }

        /* ============ Hero ============ */
        .hero-ranking {
            padding: 160px 0 80px;
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-line);
            position: relative;
            overflow: hidden;
        }
        .hero-ranking::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--color-accent);
        }
        .hero-ranking .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .hero-ranking h1 {
            font-size: clamp(2.5rem, 5vw, 4rem);
            font-weight: 800;
            line-height: 1.05;
            letter-spacing: -0.02em;
            color: var(--color-text);
            margin-bottom: 20px;
        }
        .hero-ranking h1 .accent {
            color: var(--color-accent);
        }
        .hero-ranking .hero-sub {
            font-size: 1.1rem;
            color: var(--color-muted);
            line-height: 1.7;
            max-width: 520px;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }
        .hero-metrics {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            padding-top: 24px;
            border-top: 1px solid var(--color-line);
        }
        .hero-metric-item {
            display: flex;
            flex-direction: column;
        }
        .hero-metric-item .metric-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-text);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .hero-metric-item .metric-label {
            font-size: 0.85rem;
            color: var(--color-muted);
        }
        .hero-visual {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            aspect-ratio: 4 / 3;
        }
        .hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .hero-visual .hero-visual-tag {
            position: absolute;
            bottom: 16px;
            left: 16px;
            background: var(--color-accent);
            color: #fff;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            font-size: 0.85rem;
            font-weight: 600;
        }

        /* ============ 板块标题 ============ */
        .section-header {
            margin-bottom: 40px;
        }
        .section-header h2 {
            font-size: clamp(1.6rem, 2.8vw, 2.2rem);
            font-weight: 800;
            letter-spacing: -0.01em;
            line-height: 1.15;
            color: var(--color-text);
            margin-bottom: 12px;
        }
        .section-header p {
            color: var(--color-muted);
            font-size: 1rem;
            max-width: 640px;
            line-height: 1.7;
        }
        .section-header .section-tag {
            display: inline-block;
            background: var(--color-accent-alt);
            color: var(--color-text);
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 12px;
        }

        /* ============ 榜单概览 ============ */
        .ranking-overview {
            padding: var(--section-space) 0;
            background: var(--color-bg);
        }
        .overview-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .overview-card {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }
        .overview-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-text);
        }
        .overview-card .ov-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--color-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--color-accent);
            margin-bottom: 16px;
        }
        .overview-card .ov-num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-text);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .overview-card .ov-arrow {
            font-size: 1rem;
            font-weight: 700;
            margin-left: 4px;
        }
        .overview-card .ov-arrow.up { color: #2E8B57; }
        .overview-card .ov-arrow.down { color: var(--color-accent); }
        .overview-card .ov-label {
            color: var(--color-muted);
            font-size: 0.9rem;
            margin-top: 4px;
        }

        /* ============ 排名列表 ============ */
        .ranking-section {
            padding: var(--section-space) 0;
            background: var(--color-surface);
            border-top: 1px solid var(--color-line);
            border-bottom: 1px solid var(--color-line);
        }
        .ranking-filter {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }
        .filter-pill {
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            background: var(--color-bg);
            border: 1px solid var(--color-line);
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--color-muted);
            cursor: pointer;
            transition: all 0.25s ease;
            white-space: nowrap;
        }
        .filter-pill:hover {
            border-color: var(--color-text);
            color: var(--color-text);
        }
        .filter-pill.active {
            background: var(--color-text);
            color: #fff;
            border-color: var(--color-text);
            font-weight: 600;
        }

        .rank-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--color-line);
            background: var(--color-surface);
        }
        .rank-table thead th {
            background: var(--color-text);
            color: #fff;
            padding: 16px 20px;
            font-size: 0.85rem;
            font-weight: 600;
            text-align: left;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            border-bottom: none;
        }
        .rank-table thead th:last-child,
        .rank-table tbody td:last-child {
            text-align: right;
        }
        .rank-table tbody tr {
            border-bottom: 1px solid var(--color-line);
            transition: background 0.2s ease;
        }
        .rank-table tbody tr:last-child {
            border-bottom: none;
        }
        .rank-table tbody tr:hover {
            background: var(--color-bg);
        }
        .rank-table tbody tr:nth-child(even) {
            background: rgba(245, 242, 236, 0.4);
        }
        .rank-table tbody tr:nth-child(even):hover {
            background: rgba(245, 242, 236, 0.8);
        }
        .rank-table tbody td {
            padding: 16px 20px;
            font-size: 0.92rem;
            border-bottom: 1px solid var(--color-line);
            vertical-align: middle;
        }
        .rank-table tbody tr:last-child td {
            border-bottom: none;
        }
        .rank-pos {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 8px;
            font-weight: 700;
            font-size: 0.95rem;
            background: var(--color-bg);
            color: var(--color-text);
        }
        .rank-pos.top1 { background: var(--color-accent-alt); color: var(--color-text); }
        .rank-pos.top2 { background: #E8E6E0; color: var(--color-text); }
        .rank-pos.top3 { background: #F0E0C8; color: var(--color-text); }
        .rank-change {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.82rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: var(--radius-pill);
        }
        .rank-change.up {
            color: #2E8B57;
            background: rgba(46, 139, 87, 0.1);
        }
        .rank-change.down {
            color: var(--color-accent);
            background: rgba(255, 85, 32, 0.1);
        }
        .rank-change.same {
            color: var(--color-muted);
            background: rgba(107, 113, 109, 0.1);
        }
        .rank-name {
            font-weight: 600;
            color: var(--color-text);
        }
        .rank-value {
            font-weight: 700;
            color: var(--color-text);
            font-size: 1rem;
        }
        .rank-tag {
            display: inline-block;
            padding: 2px 10px;
            border-radius: var(--radius-pill);
            font-size: 0.75rem;
            font-weight: 500;
            background: var(--color-bg);
            color: var(--color-muted);
            margin-left: 8px;
        }

        /* ============ 榜单解读长文 ============ */
        .ranking-insight {
            padding: var(--section-space) 0;
            background: var(--color-bg);
        }
        .insight-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }
        .insight-text h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--color-text);
            line-height: 1.3;
        }
        .insight-text p {
            color: var(--color-muted);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .insight-text ul {
            list-style: none;
            padding: 0;
            margin: 20px 0;
        }
        .insight-text ul li {
            padding: 10px 0 10px 28px;
            position: relative;
            color: var(--color-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .insight-text ul li::before {
            content: '→';
            position: absolute;
            left: 0;
            color: var(--color-accent);
            font-weight: 700;
        }
        .insight-visual {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            aspect-ratio: 16 / 10;
        }
        .insight-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        .insight-visual:hover img { transform: scale(1.03); }

        /* ============ 方法论 ============ */
        .methodology {
            padding: var(--section-space) 0;
            background: var(--color-surface);
            border-top: 1px solid var(--color-line);
            border-bottom: 1px solid var(--color-line);
        }
        .method-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .method-card {
            background: var(--color-bg);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 28px;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }
        .method-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-sm);
        }
        .method-card .method-num {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--color-accent);
            letter-spacing: 0.06em;
            margin-bottom: 12px;
        }
        .method-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--color-text);
        }
        .method-card p {
            color: var(--color-muted);
            font-size: 0.92rem;
            line-height: 1.7;
        }

        /* ============ 数据维度 ============ */
        .data-dimensions {
            padding: var(--section-space) 0;
            background: var(--color-bg);
        }
        .dimension-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        .dimension-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            padding: 20px;
            shadow: var(--shadow-sm);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }
        .dimension-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }
        .dimension-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--color-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: var(--color-accent);
            flex-shrink: 0;
        }
        .dimension-info h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 4px;
        }
        .dimension-info p {
            font-size: 0.88rem;
            color: var(--color-muted);
            line-height: 1.6;
            margin: 0;
        }

        /* ============ FAQ ============ */
        .faq-section {
            padding: var(--section-space) 0;
            background: var(--color-surface);
            border-top: 1px solid var(--color-line);
            border-bottom: 1px solid var(--color-line);
        }
        .faq-item {
            border: 1px solid var(--color-line);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--color-bg);
            transition: border-color 0.25s ease;
        }
        .faq-item:hover {
            border-color: var(--color-text);
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            user-select: none;
            transition: color 0.25s ease;
        }
        .faq-question:hover { color: var(--color-accent); }
        .faq-question i {
            transition: transform 0.3s ease;
            font-size: 0.85rem;
            color: var(--color-muted);
        }
        .faq-item.open .faq-question i { transform: rotate(180deg); color: var(--color-accent); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 18px;
        }
        .faq-answer p {
            color: var(--color-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            margin: 0;
            padding-left: 12px;
            border-left: 3px solid var(--color-accent);
        }

        /* ============ 最终CTA ============ */
        .final-cta {
            padding: var(--section-space) 0;
            background: var(--color-text);
            color: #fff;
        }
        .final-cta .container {
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 40px;
            align-items: center;
        }
        .final-cta h2 {
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            font-weight: 800;
            letter-spacing: -0.01em;
            margin-bottom: 12px;
            color: #fff;
        }
        .final-cta h2 .accent {
            color: var(--color-accent);
        }
        .final-cta p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 1rem;
            line-height: 1.7;
            max-width: 500px;
            margin: 0;
        }
        .final-cta .btn-primary {
            background: var(--color-accent);
            color: #fff !important;
            padding: 16px 32px;
            font-size: 1rem;
            white-space: nowrap;
        }

        /* ============ 页脚 ============ */
        .footer {
            background: var(--color-text);
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 24px;
            font-size: 0.88rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo { color: #fff; margin-bottom: 16px; }
        .footer-brand .logo .logo-icon { background: var(--color-accent); color: #fff; }
        .footer-brand p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.88rem;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.92rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            padding: 6px 0;
            font-size: 0.88rem;
            transition: color 0.25s ease;
        }
        .footer-col a:hover { color: var(--color-accent); }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            transition: color 0.25s ease;
        }
        .footer-bottom a:hover { color: var(--color-accent); }

        /* ============ 底部固定转化条 ============ */
        .sticky-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background: var(--color-text);
            z-index: 900;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 10px 0;
            box-shadow: 0 -6px 24px rgba(10, 10, 10, 0.18);
        }
        .sticky-cta-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .sticky-cta-bar .sticky-text {
            color: #fff;
            font-size: 0.9rem;
            font-weight: 500;
            margin: 0;
        }
        .sticky-cta-bar .sticky-text strong {
            color: var(--color-accent-alt);
            font-weight: 700;
        }
        .sticky-cta-bar .btn-primary {
            padding: 10px 22px;
            font-size: 0.88rem;
            white-space: nowrap;
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            .hero-ranking .container {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-visual {
                aspect-ratio: 16 / 9;
            }
            .overview-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .insight-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .method-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .final-cta .container {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .nav-desktop { display: none; }
            .hamburger { display: flex; }
            .hero-ranking {
                padding: 120px 0 56px;
            }
            .hero-ranking h1 {
                font-size: clamp(2rem, 7vw, 2.8rem);
            }
            .hero-metrics {
                gap: 20px;
            }
            .overview-grid {
                grid-template-columns: 1fr;
            }
            .method-grid {
                grid-template-columns: 1fr;
            }
            .dimension-list {
                grid-template-columns: 1fr;
            }
            .rank-table {
                font-size: 0.85rem;
            }
            .rank-table thead th,
            .rank-table tbody td {
                padding: 12px 14px;
                font-size: 0.82rem;
            }
        }

        @media (max-width: 520px) {
            .hero-ranking .hero-sub {
                font-size: 0.95rem;
            }
            .hero-actions {
                flex-direction: column;
                gap: 10px;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-secondary {
                width: 100%;
                justify-content: center;
            }
            .hero-metrics {
                gap: 16px;
            }
            .hero-metric-item .metric-num {
                font-size: 1.6rem;
            }
            .ranking-filter {
                gap: 8px;
            }
            .filter-pill {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
            .rank-table {
                display: block;
                overflow-x: auto;
                white-space: nowrap;
            }
            .sticky-cta-bar {
                padding: 8px 0;
            }
            .sticky-cta-bar .container {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
            .sticky-cta-bar .sticky-text {
                font-size: 0.8rem;
            }
            .sticky-cta-bar .btn-primary {
                width: 100%;
                justify-content: center;
                padding: 8px 16px;
                font-size: 0.82rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 6px;
                text-align: center;
                align-items: center;
            }
        }