/* roulang page: index */
/* ========== 设计变量 ========== */
        :root {
            --color-primary: #0a1628;
            --color-primary-light: #152240;
            --color-primary-dark: #060e1b;
            --color-accent: #c8963e;
            --color-accent-light: #d9b060;
            --color-accent-glow: #f0d078;
            --color-cta: #e85d27;
            --color-cta-hover: #c94a1a;
            --color-cta-light: #ff7a4d;
            --color-bg: #f4f5f7;
            --color-bg-alt: #eef0f3;
            --color-surface: #ffffff;
            --color-surface-hover: #fafbfc;
            --color-text: #1a1d23;
            --color-text-strong: #0f1117;
            --color-text-weak: #6e7687;
            --color-text-muted: #9ba2b0;
            --color-border: #e1e4ea;
            --color-border-light: #eef0f4;
            --color-success: #2eaa6e;
            --color-warning: #f0a030;
            --color-danger: #e04040;
            --color-info: #3b8fd4;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --radius-full: 9999px;
            --shadow-xs: 0 1px 2px rgba(10, 22, 40, 0.04);
            --shadow-sm: 0 2px 8px rgba(10, 22, 40, 0.06);
            --shadow-md: 0 6px 20px rgba(10, 22, 40, 0.10);
            --shadow-lg: 0 16px 40px rgba(10, 22, 40, 0.14);
            --shadow-xl: 0 24px 60px rgba(10, 22, 40, 0.20);
            --shadow-glow-accent: 0 4px 20px rgba(200, 150, 62, 0.30);
            --shadow-glow-cta: 0 4px 22px rgba(232, 93, 39, 0.35);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', 'Monaco', monospace;
            --fs-xs: 0.75rem;
            --fs-sm: 0.85rem;
            --fs-base: 1rem;
            --fs-md: 1.1rem;
            --fs-lg: 1.25rem;
            --fs-xl: 1.5rem;
            --fs-2xl: 1.85rem;
            --fs-3xl: 2.3rem;
            --fs-4xl: 2.9rem;
            --fs-hero: 3.5rem;
            --lh-tight: 1.15;
            --lh-normal: 1.55;
            --lh-relaxed: 1.75;
            --spacing-xs: 0.35rem;
            --spacing-sm: 0.65rem;
            --spacing-md: 1rem;
            --spacing-lg: 1.6rem;
            --spacing-xl: 2.4rem;
            --spacing-2xl: 3.2rem;
            --spacing-3xl: 4.5rem;
            --spacing-4xl: 6.5rem;
            --max-width: 1240px;
            --max-width-narrow: 860px;
            --header-height: 68px;
            --transition-fast: 0.15s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1.2);
            --z-header: 1000;
            --z-overlay: 900;
            --z-modal: 1100;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: var(--fs-base);
            line-height: var(--lh-normal);
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            font-size: inherit;
        }

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

        ul,
        ol {
            list-style: none;
        }

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

        /* ========== 容器 ========== */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: var(--spacing-lg);
            padding-right: var(--spacing-lg);
        }

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

        /* ========== Header / 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: var(--z-header);
            background: rgba(10, 22, 40, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            height: var(--header-height);
            display: flex;
            align-items: center;
            transition: background var(--transition-base), box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-lg);
            background: rgba(10, 22, 40, 0.98);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-lg);
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding-left: var(--spacing-lg);
            padding-right: var(--spacing-lg);
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-weight: 800;
            font-size: var(--fs-xl);
            color: #ffffff;
            letter-spacing: 0.02em;
            white-space: nowrap;
            flex-shrink: 0;
            transition: color var(--transition-fast), transform var(--transition-fast);
        }

        .logo-link:hover {
            color: var(--color-accent-glow);
            transform: scale(1.03);
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-glow) 100%);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--color-primary-dark);
            flex-shrink: 0;
            box-shadow: var(--shadow-glow-accent);
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
        }

        .nav-list a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 0.5rem 1rem;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: var(--fs-sm);
            color: rgba(255, 255, 255, 0.78);
            transition: color var(--transition-fast), background var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-list a:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.08);
        }

        .nav-list a.active {
            color: #ffffff;
            background: rgba(200, 150, 62, 0.18);
            box-shadow: inset 0 0 0 1px rgba(200, 150, 62, 0.3);
        }

        .nav-badge {
            display: inline-block;
            font-size: 0.65rem;
            font-weight: 700;
            background: var(--color-cta);
            color: #fff;
            padding: 2px 7px;
            border-radius: var(--radius-full);
            letter-spacing: 0.04em;
            animation: badgePulse 2.4s ease-in-out infinite;
        }

        @keyframes badgePulse {
            0%,
            100% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.12);
            }
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 0.6rem 1.3rem;
            background: linear-gradient(135deg, var(--color-cta) 0%, var(--color-cta-light) 100%);
            color: #ffffff;
            font-weight: 700;
            font-size: var(--fs-sm);
            border-radius: var(--radius-full);
            white-space: nowrap;
            transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-base);
            box-shadow: var(--shadow-glow-cta);
            letter-spacing: 0.02em;
            flex-shrink: 0;
        }

        .header-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(232, 93, 39, 0.45);
            color: #ffffff;
            background: linear-gradient(135deg, var(--color-cta-hover) 0%, var(--color-cta) 100%);
        }

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

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.06);
            color: #ffffff;
            font-size: 1.4rem;
            transition: background var(--transition-fast);
            flex-shrink: 0;
        }

        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.14);
        }

        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(10, 22, 40, 0.97);
            z-index: var(--z-overlay);
            flex-direction: column;
            align-items: center;
            justify-content: flex-start;
            padding-top: var(--spacing-2xl);
            gap: var(--spacing-md);
        }

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

        .mobile-nav-overlay a {
            font-size: var(--fs-lg);
            font-weight: 700;
            color: rgba(255, 255, 255, 0.82);
            padding: 0.7rem 1.6rem;
            border-radius: var(--radius-full);
            transition: color var(--transition-fast), background var(--transition-fast);
        }

        .mobile-nav-overlay a:hover,
        .mobile-nav-overlay a.active {
            color: #ffffff;
            background: rgba(200, 150, 62, 0.2);
        }

        .mobile-nav-overlay .header-cta {
            margin-top: var(--spacing-md);
            font-size: var(--fs-base);
            padding: 0.8rem 2rem;
        }

        /* ========== Hero 板块 ========== */
        .hero-section {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            background: var(--color-primary);
            background-image: linear-gradient(180deg, rgba(10, 22, 40, 0.55) 0%, rgba(10, 22, 40, 0.82) 100%), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(200, 150, 62, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -60px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(232, 93, 39, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
            padding: var(--spacing-3xl) 0;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(200, 150, 62, 0.2);
            border: 1px solid rgba(200, 150, 62, 0.4);
            color: var(--color-accent-glow);
            font-weight: 700;
            font-size: var(--fs-xs);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            padding: 0.4rem 1rem;
            border-radius: var(--radius-full);
            margin-bottom: var(--spacing-lg);
        }

        .hero-tag-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--color-accent-glow);
            animation: dotBlink 1.6s ease-in-out infinite;
        }

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

        .hero-title {
            font-size: var(--fs-hero);
            font-weight: 900;
            color: #ffffff;
            letter-spacing: 0.01em;
            margin-bottom: var(--spacing-lg);
            line-height: 1.1;
        }

        .hero-title .accent-text {
            color: var(--color-accent-glow);
            position: relative;
        }

        .hero-desc {
            font-size: var(--fs-lg);
            color: rgba(255, 255, 255, 0.72);
            line-height: var(--lh-relaxed);
            margin-bottom: var(--spacing-xl);
            max-width: 520px;
        }

        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-md);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 0.75rem 1.8rem;
            font-weight: 700;
            font-size: var(--fs-base);
            border-radius: var(--radius-full);
            transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-base), color var(--transition-fast);
            letter-spacing: 0.02em;
            white-space: nowrap;
            cursor: pointer;
            text-align: center;
            justify-content: center;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
            color: #ffffff;
            box-shadow: var(--shadow-glow-accent);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 32px rgba(200, 150, 62, 0.45);
            color: #ffffff;
        }

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

        .btn-outline {
            background: transparent;
            color: #ffffff;
            border: 2px solid rgba(255, 255, 255, 0.35);
        }

        .btn-outline:hover {
            border-color: #ffffff;
            background: rgba(255, 255, 255, 0.08);
            color: #ffffff;
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(255, 255, 255, 0.1);
        }

        .btn-cta {
            background: linear-gradient(135deg, var(--color-cta) 0%, var(--color-cta-light) 100%);
            color: #ffffff;
            box-shadow: var(--shadow-glow-cta);
        }

        .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 34px rgba(232, 93, 39, 0.5);
            color: #ffffff;
        }

        .btn-sm {
            padding: 0.5rem 1.2rem;
            font-size: var(--fs-sm);
        }

        .btn-lg {
            padding: 0.9rem 2.4rem;
            font-size: var(--fs-md);
        }

        /* ========== 板块通用 ========== */
        .section {
            padding: var(--spacing-4xl) 0;
        }

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

        .section-dark {
            background: var(--color-primary);
            color: #ffffff;
        }

        .section-dark .section-title,
        .section-dark .section-subtitle {
            color: #ffffff;
        }

        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-3xl);
        }

        .section-label {
            display: inline-block;
            font-weight: 700;
            font-size: var(--fs-xs);
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: var(--color-accent);
            margin-bottom: var(--spacing-sm);
        }

        .section-title {
            font-size: var(--fs-3xl);
            font-weight: 800;
            color: var(--color-text-strong);
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.01em;
        }

        .section-subtitle {
            font-size: var(--fs-md);
            color: var(--color-text-weak);
            max-width: 560px;
            margin: 0 auto;
            line-height: var(--lh-relaxed);
        }

        /* ========== 核心亮点卡片 ========== */
        .highlights-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-lg);
        }

        .highlight-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl) var(--spacing-lg);
            text-align: center;
            border: 1px solid var(--color-border-light);
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .highlight-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--color-accent), var(--color-cta));
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-slow);
        }

        .highlight-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .highlight-card:hover::before {
            transform: scaleX(1);
        }

        .highlight-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, rgba(200, 150, 62, 0.15) 0%, rgba(200, 150, 62, 0.05) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            margin: 0 auto var(--spacing-md);
            color: var(--color-accent);
        }

        .highlight-card h3 {
            font-size: var(--fs-lg);
            margin-bottom: var(--spacing-sm);
            color: var(--color-text-strong);
        }

        .highlight-card p {
            font-size: var(--fs-sm);
            color: var(--color-text-weak);
            line-height: var(--lh-relaxed);
        }

        /* ========== 分类入口 ========== */
        .category-entry-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: var(--spacing-lg);
            max-width: 700px;
            margin: 0 auto;
        }

        .category-entry-card {
            display: flex;
            align-items: center;
            gap: var(--spacing-lg);
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg) var(--spacing-xl);
            border: 1px solid var(--color-border-light);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
            cursor: pointer;
        }

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

        .category-entry-img {
            width: 90px;
            height: 90px;
            border-radius: var(--radius-md);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--color-bg-alt);
        }

        .category-entry-info h3 {
            font-size: var(--fs-xl);
            margin-bottom: 4px;
        }

        .category-entry-info p {
            font-size: var(--fs-sm);
            color: var(--color-text-weak);
            line-height: var(--lh-relaxed);
        }

        .category-entry-arrow {
            margin-left: auto;
            font-size: 1.5rem;
            color: var(--color-accent);
            flex-shrink: 0;
            transition: transform var(--transition-base);
        }

        .category-entry-card:hover .category-entry-arrow {
            transform: translateX(6px);
        }

        /* ========== 最新资讯列表 ========== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-lg);
        }

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

        .news-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }

        .news-card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/10;
            background: var(--color-bg-alt);
        }

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

        .news-card:hover .news-card-img-wrap img {
            transform: scale(1.06);
        }

        .news-card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--color-accent);
            color: #ffffff;
            font-size: var(--fs-xs);
            font-weight: 700;
            padding: 4px 10px;
            border-radius: var(--radius-full);
            letter-spacing: 0.04em;
            z-index: 2;
        }

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

        .news-card-body h3 {
            font-size: var(--fs-md);
            margin-bottom: var(--spacing-sm);
            line-height: var(--lh-tight);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card-body h3 a {
            color: var(--color-text-strong);
            transition: color var(--transition-fast);
        }

        .news-card-body h3 a:hover {
            color: var(--color-accent);
        }

        .news-card-desc {
            font-size: var(--fs-sm);
            color: var(--color-text-weak);
            line-height: var(--lh-relaxed);
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: var(--spacing-sm);
        }

        .news-card-meta {
            font-size: var(--fs-xs);
            color: var(--color-text-muted);
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }

        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: var(--spacing-3xl);
            color: var(--color-text-weak);
            font-size: var(--fs-md);
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            border: 1px dashed var(--color-border);
        }

        /* ========== 数据统计板块 ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-lg);
            text-align: center;
        }

        .stat-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl) var(--spacing-lg);
            transition: transform var(--transition-base), background var(--transition-base);
        }

        .stat-card:hover {
            transform: translateY(-4px);
            background: rgba(255, 255, 255, 0.08);
        }

        .stat-number {
            font-size: var(--fs-4xl);
            font-weight: 900;
            color: var(--color-accent-glow);
            letter-spacing: 0.02em;
            margin-bottom: var(--spacing-xs);
        }

        .stat-label {
            font-size: var(--fs-sm);
            color: rgba(255, 255, 255, 0.6);
            font-weight: 500;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }

        /* ========== 流程板块 ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-lg);
            position: relative;
        }

        .steps-grid::before {
            content: '';
            position: absolute;
            top: 36px;
            left: 15%;
            right: 15%;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--color-border), transparent);
            z-index: 0;
            display: none;
        }

        .step-card {
            text-align: center;
            position: relative;
            z-index: 1;
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: var(--spacing-xl) var(--spacing-md);
            border: 1px solid var(--color-border-light);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }

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

        .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
            color: #ffffff;
            font-weight: 900;
            font-size: var(--fs-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto var(--spacing-md);
            box-shadow: var(--shadow-glow-accent);
        }

        .step-card h3 {
            font-size: var(--fs-md);
            margin-bottom: var(--spacing-sm);
        }

        .step-card p {
            font-size: var(--fs-sm);
            color: var(--color-text-weak);
            line-height: var(--lh-relaxed);
        }

        /* ========== FAQ 板块 ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }

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

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

        .faq-question {
            width: 100%;
            text-align: left;
            padding: var(--spacing-lg);
            font-weight: 700;
            font-size: var(--fs-base);
            color: var(--color-text-strong);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            cursor: pointer;
            transition: color var(--transition-fast), background var(--transition-fast);
            background: transparent;
            border: none;
        }

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

        .faq-icon {
            flex-shrink: 0;
            font-size: 1.2rem;
            transition: transform var(--transition-base);
            color: var(--color-text-muted);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }

        .faq-item.is-open .faq-answer {
            max-height: 300px;
        }

        .faq-answer-inner {
            padding: 0 var(--spacing-lg) var(--spacing-lg);
            font-size: var(--fs-sm);
            color: var(--color-text-weak);
            line-height: var(--lh-relaxed);
        }

        /* ========== CTA 板块 ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            text-align: center;
            padding: var(--spacing-4xl) 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(200, 150, 62, 0.22) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 2;
        }

        .cta-title {
            font-size: var(--fs-3xl);
            font-weight: 900;
            color: #ffffff;
            margin-bottom: var(--spacing-md);
        }

        .cta-desc {
            font-size: var(--fs-md);
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: var(--spacing-xl);
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
            line-height: var(--lh-relaxed);
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--color-primary-dark);
            color: rgba(255, 255, 255, 0.55);
            padding: var(--spacing-3xl) 0 var(--spacing-xl);
        }

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

        .footer-brand .logo-link {
            margin-bottom: var(--spacing-md);
            display: inline-flex;
        }

        .footer-brand p {
            font-size: var(--fs-sm);
            line-height: var(--lh-relaxed);
            color: rgba(255, 255, 255, 0.45);
            max-width: 320px;
        }

        .footer-col h4 {
            color: #ffffff;
            font-size: var(--fs-sm);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: var(--spacing-md);
            font-weight: 700;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

        .footer-col ul a {
            font-size: var(--fs-sm);
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: var(--spacing-lg);
            text-align: center;
            font-size: var(--fs-xs);
            color: rgba(255, 255, 255, 0.35);
        }

        /* ========== 响应式设计 ========== */
        @media (max-width: 1100px) {
            :root {
                --fs-hero: 2.6rem;
                --fs-4xl: 2.3rem;
                --fs-3xl: 1.9rem;
            }
            .highlights-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--spacing-md);
            }
            .steps-grid::before {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero-section {
                min-height: 500px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --fs-hero: 2rem;
                --fs-4xl: 1.8rem;
                --fs-3xl: 1.55rem;
                --fs-2xl: 1.4rem;
                --fs-xl: 1.25rem;
                --header-height: 58px;
                --spacing-4xl: 3.5rem;
                --spacing-3xl: 2.5rem;
            }
            .nav-list {
                display: none;
            }
            .header-cta.desktop-only {
                display: none;
            }
            .menu-toggle {
                display: flex;
            }
            .highlights-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-md);
            }
            .news-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-md);
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
            .category-entry-card {
                flex-direction: column;
                text-align: center;
                padding: var(--spacing-lg);
            }
            .category-entry-arrow {
                margin-left: 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-xl);
            }
            .hero-section {
                min-height: 440px;
                text-align: center;
            }
            .hero-content {
                max-width: 100%;
            }
            .hero-desc {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-buttons {
                justify-content: center;
            }
            .section-title {
                font-size: var(--fs-2xl);
            }
            .btn {
                padding: 0.65rem 1.4rem;
                font-size: var(--fs-sm);
            }
            .btn-lg {
                padding: 0.75rem 1.8rem;
                font-size: var(--fs-base);
            }
        }

        @media (max-width: 520px) {
            :root {
                --fs-hero: 1.6rem;
                --fs-3xl: 1.35rem;
                --spacing-4xl: 2.8rem;
                --spacing-3xl: 2rem;
            }
            .highlights-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-sm);
            }
            .stat-number {
                font-size: 1.6rem;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }
            .hero-buttons .btn {
                width: 100%;
                max-width: 280px;
                justify-content: center;
            }
            .container {
                padding-left: var(--spacing-md);
                padding-right: var(--spacing-md);
            }
            .header-inner {
                padding-left: var(--spacing-md);
                padding-right: var(--spacing-md);
            }
            .hero-section {
                min-height: 380px;
            }
        }

/* roulang page: article */
:root {
            --primary: #0b1e3d;
            --primary-light: #132c52;
            --secondary: #f0a500;
            --accent: #1e88e5;
            --accent-hover: #1565c0;
            --bg: #f0f2f5;
            --card-bg: #ffffff;
            --text: #1a1a2e;
            --text-light: #5a5f6d;
            --text-muted: #8e929c;
            --border: #e2e6ed;
            --radius-sm: 8px;
            --radius: 14px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow: 0 10px 30px rgba(0,0,0,0.06);
            --shadow-lg: 0 20px 50px rgba(11,30,61,0.1);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-main: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
        }

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

        html { scroll-behavior: smooth; }

        body {
            font-family: var(--font-main);
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

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

        a { color: inherit; text-decoration: none; }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 头部导航 */
        .site-header {
            background: var(--primary);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
            backdrop-filter: blur(6px);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
        }
        .logo-icon {
            font-size: 1.7rem;
            color: var(--secondary);
            text-shadow: 0 0 8px rgba(240,165,0,0.4);
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list a {
            position: relative;
            padding: 8px 16px;
            border-radius: 50px;
            color: rgba(255,255,255,0.85);
            font-weight: 500;
            transition: var(--transition);
        }
        .nav-list a:hover,
        .nav-list a.active {
            background: rgba(255,255,255,0.1);
            color: #fff;
        }
        .nav-badge {
            background: var(--secondary);
            color: var(--primary);
            font-size: 0.7rem;
            font-weight: 700;
            padding: 2px 8px;
            border-radius: 20px;
            margin-left: 6px;
            vertical-align: middle;
            display: inline-block;
        }
        .header-cta {
            background: var(--secondary);
            color: var(--primary);
            padding: 10px 24px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: var(--transition);
            white-space: nowrap;
        }
        .header-cta:hover {
            background: #ffbc2c;
            box-shadow: 0 4px 16px rgba(240,165,0,0.4);
        }
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
        }

        /* 页脚 */
        .site-footer {
            background: var(--primary);
            color: rgba(255,255,255,0.8);
            padding: 56px 0 32px;
            margin-top: 80px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo-link {
            margin-bottom: 12px;
            font-size: 1.4rem;
            color: #fff;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255,255,255,0.7);
            max-width: 320px;
        }
        .footer-col h4 {
            color: #fff;
            margin-bottom: 14px;
            font-size: 1rem;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: rgba(255,255,255,0.7);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--secondary);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.15);
            padding-top: 24px;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
        }

        /* 文章主体 */
        .article-main {
            padding: 40px 0 60px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 30px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--accent);
            font-weight: 500;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
            color: var(--accent-hover);
        }
        .breadcrumb .separator {
            color: #c0c4cc;
        }
        .article-detail {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 40px 48px;
            box-shadow: var(--shadow-lg);
            max-width: 860px;
            margin: 0 auto;
            position: relative;
            overflow: hidden;
        }
        .article-hero {
            border-radius: var(--radius);
            overflow: hidden;
            margin-bottom: 32px;
            position: relative;
            background: var(--primary-light);
        }
        .article-hero img {
            width: 100%;
            height: 300px;
            object-fit: cover;
            opacity: 0.92;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 20px;
            font-size: 0.9rem;
            color: var(--text-light);
        }
        .article-category {
            background: rgba(30,136,229,0.1);
            color: var(--accent);
            padding: 4px 14px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.8rem;
            letter-spacing: 0.3px;
        }
        .article-detail h1 {
            font-size: 2.2rem;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 32px;
            color: var(--text);
            letter-spacing: -0.3px;
        }
        .article-content {
            font-size: 1.05rem;
            line-height: 1.8;
            color: #333;
        }
        .article-content p {
            margin-bottom: 1.6em;
        }
        .article-content h2,
        .article-content h3 {
            margin-top: 2em;
            margin-bottom: 0.8em;
            font-weight: 600;
            color: var(--primary);
        }
        .article-content img {
            border-radius: var(--radius-sm);
            margin: 24px 0;
            box-shadow: var(--shadow-sm);
        }
        .article-content ul,
        .article-content ol {
            padding-left: 1.5em;
            margin-bottom: 1.5em;
        }
        .article-content li {
            margin-bottom: 0.5em;
        }
        .article-footer-meta {
            margin-top: 48px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            box-shadow: 0 8px 20px rgba(30,136,229,0.3);
        }
        .btn-outline {
            border: 1.5px solid var(--border);
            color: var(--text);
            background: transparent;
        }
        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(30,136,229,0.03);
        }
        .article-not-found {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 80px 40px;
            text-align: center;
            box-shadow: var(--shadow);
            max-width: 500px;
            margin: 40px auto;
        }
        .article-not-found h2 {
            font-size: 1.8rem;
            margin-bottom: 12px;
        }
        .article-not-found p {
            color: var(--text-light);
            margin-bottom: 24px;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .article-detail {
                padding: 32px 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 60px;
            }
            .nav-list {
                position: fixed;
                top: 60px;
                left: 0;
                width: 100%;
                background: var(--primary-light);
                flex-direction: column;
                align-items: flex-start;
                padding: 20px 24px;
                gap: 12px;
                transform: translateY(-150%);
                opacity: 0;
                transition: transform 0.3s ease, opacity 0.35s ease;
                box-shadow: 0 10px 30px rgba(0,0,0,0.2);
                z-index: 999;
            }
            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
            }
            .nav-list a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }
            .menu-toggle {
                display: block;
            }
            .desktop-only {
                display: none;
            }
            .article-detail h1 {
                font-size: 1.6rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #0f1b3d;
            --color-primary-light: #1a2d5a;
            --color-accent: #f0a500;
            --color-accent-glow: #ffc940;
            --color-danger: #e94560;
            --color-success: #10b981;
            --color-info: #3b82f6;
            --color-bg: #f6f7fb;
            --color-surface: #ffffff;
            --color-text: #1e293b;
            --color-text-secondary: #64748b;
            --color-text-muted: #94a3b8;
            --color-border: #e2e8f0;
            --color-border-light: #f1f5f9;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.10), 0 4px 12px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.14), 0 8px 20px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.15s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            --container-max: 1200px;
            --header-height: 68px;
            --section-gap: 80px;
            --section-gap-md: 56px;
            --section-gap-sm: 40px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            font-size: inherit;
        }

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

        ul,
        ol {
            list-style: none;
        }

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

        /* ========== HEADER ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(15, 27, 61, 0.97);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            height: var(--header-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-lg);
        }

        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: 0.02em;
            white-space: nowrap;
            transition: opacity var(--transition-fast);
        }

        .logo-link:hover {
            opacity: 0.85;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--color-accent);
            color: var(--color-primary);
            border-radius: var(--radius-sm);
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-list a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.95rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.78);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-list a:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.08);
        }

        .nav-list a.active {
            color: var(--color-accent);
            background: rgba(240, 165, 0, 0.12);
            font-weight: 600;
        }

        .nav-badge {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 2px 7px;
            border-radius: 10px;
            background: var(--color-danger);
            color: #ffffff;
            line-height: 1.3;
            animation: badgePulse 2s ease-in-out infinite;
        }

        .nav-badge.new {
            background: var(--color-accent);
            color: var(--color-primary);
            animation: badgePulseGold 2s ease-in-out infinite;
        }

        @keyframes badgePulse {
            0%,
            100% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.12);
            }
        }

        @keyframes badgePulseGold {
            0%,
            100% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.12);
            }
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            padding: 10px 22px;
            background: var(--color-accent);
            color: var(--color-primary);
            border-radius: 24px;
            font-weight: 700;
            font-size: 0.9rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-normal);
            white-space: nowrap;
            box-shadow: 0 2px 8px rgba(240, 165, 0, 0.25);
        }

        .header-cta:hover {
            background: var(--color-accent-glow);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(240, 165, 0, 0.4);
        }

        .menu-toggle {
            display: none;
            font-size: 1.6rem;
            color: #ffffff;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            line-height: 1;
        }

        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        .desktop-only {
            display: inline-flex;
        }

        @media (max-width: 860px) {
            .desktop-only {
                display: none;
            }
            .menu-toggle {
                display: block;
            }
            .nav-list {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(15, 27, 61, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 4px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: all var(--transition-slow);
                z-index: 999;
                box-shadow: var(--shadow-xl);
            }
            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-list a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                font-size: 1rem;
            }
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb-wrap {
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border);
            padding: 10px 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            flex-wrap: wrap;
        }

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

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

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

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

        /* ========== CATEGORY BANNER ========== */
        .category-banner {
            position: relative;
            background: var(--color-primary);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 64px 0;
            overflow: hidden;
        }

        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 27, 61, 0.88) 0%, rgba(15, 27, 61, 0.7) 50%, rgba(15, 27, 61, 0.82) 100%);
            z-index: 1;
        }

        .category-banner .container {
            position: relative;
            z-index: 2;
        }

        .banner-content {
            display: flex;
            flex-direction: column;
            gap: 16px;
            max-width: 700px;
        }

        .banner-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-accent);
            letter-spacing: 0.05em;
            text-transform: uppercase;
        }

        .banner-label .dot {
            width: 8px;
            height: 8px;
            background: var(--color-accent);
            border-radius: 50%;
            animation: dotBlink 1.5s ease-in-out infinite;
        }

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

        .banner-content h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #ffffff;
            letter-spacing: 0.01em;
            line-height: 1.25;
        }

        .banner-content h1 .highlight {
            color: var(--color-accent);
            position: relative;
        }

        .banner-content p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.78);
            line-height: 1.7;
        }

        .banner-stats-row {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            margin-top: 8px;
        }

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

        .banner-stat-value {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--color-accent);
            letter-spacing: 0.02em;
        }

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

        @media (max-width: 768px) {
            .category-banner {
                padding: 40px 0;
            }
            .banner-content h1 {
                font-size: 1.8rem;
            }
            .banner-content p {
                font-size: 0.95rem;
            }
            .banner-stats-row {
                gap: 20px;
            }
            .banner-stat-value {
                font-size: 1.4rem;
            }
        }

        /* ========== MAIN CONTENT AREA ========== */
        .main-content {
            flex: 1;
        }

        /* ========== SECTION TITLES ========== */
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .section-header .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--color-accent);
            background: rgba(240, 165, 0, 0.08);
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
            text-transform: uppercase;
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: 0.01em;
            margin-bottom: 8px;
        }

        .section-header p {
            font-size: 1rem;
            color: var(--color-text-secondary);
            max-width: 560px;
            margin: 0 auto;
        }

        @media (max-width: 768px) {
            .section-header h2 {
                font-size: 1.5rem;
            }
            .section-header {
                margin-bottom: 28px;
            }
        }

        /* ========== RANKING SECTION ========== */
        .ranking-section {
            padding: var(--section-gap) 0;
        }

        .ranking-toolbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 28px;
            padding: 16px 20px;
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
        }

        .ranking-tabs {
            display: flex;
            gap: 4px;
            background: var(--color-border-light);
            border-radius: 24px;
            padding: 3px;
        }

        .ranking-tab {
            padding: 8px 18px;
            border-radius: 22px;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            cursor: pointer;
            white-space: nowrap;
        }

        .ranking-tab.active,
        .ranking-tab:hover {
            background: var(--color-surface);
            color: var(--color-primary);
            box-shadow: var(--shadow-sm);
        }

        .ranking-tab.active {
            color: var(--color-accent);
        }

        .ranking-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--color-bg);
            border-radius: 24px;
            padding: 8px 16px;
            border: 1px solid var(--color-border);
            transition: border-color var(--transition-fast);
        }

        .ranking-search:focus-within {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(240, 165, 0, 0.1);
        }

        .ranking-search input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 0.9rem;
            color: var(--color-text);
            width: 160px;
        }

        .ranking-search input::placeholder {
            color: var(--color-text-muted);
        }

        .ranking-search .search-icon {
            color: var(--color-text-muted);
            font-size: 0.95rem;
        }

        .ranking-table-wrap {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-md);
            overflow: hidden;
        }

        .ranking-row {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            border-bottom: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            cursor: pointer;
            position: relative;
        }

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

        .ranking-row:hover {
            background: #fafbfd;
            transform: translateX(2px);
        }

        .ranking-row.top-rank {
            background: linear-gradient(90deg, rgba(240, 165, 0, 0.04) 0%, transparent 100%);
        }

        .rank-number {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-text-muted);
            min-width: 44px;
            text-align: center;
            letter-spacing: -0.02em;
            flex-shrink: 0;
        }

        .ranking-row.top-rank .rank-number {
            color: var(--color-accent);
            font-size: 1.7rem;
        }

        .rank-medal {
            display: inline-block;
            font-size: 1.6rem;
            min-width: 44px;
            text-align: center;
            flex-shrink: 0;
        }

        .rank-cover {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--color-border-light);
        }

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

        .rank-name {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--color-text);
            margin-bottom: 2px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .rank-region {
            font-size: 0.82rem;
            color: var(--color-text-secondary);
        }

        .rank-stats {
            display: flex;
            gap: 24px;
            flex-shrink: 0;
            text-align: center;
        }

        .rank-stat-item {
            display: flex;
            flex-direction: column;
            gap: 1px;
        }

        .rank-stat-value {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--color-text);
        }

        .rank-stat-label {
            font-size: 0.72rem;
            color: var(--color-text-muted);
            text-transform: uppercase;
            letter-spacing: 0.03em;
        }

        .rank-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-weight: 700;
            font-size: 0.9rem;
            min-width: 56px;
            justify-content: flex-end;
            flex-shrink: 0;
        }

        .rank-trend.up {
            color: var(--color-success);
        }

        .rank-trend.down {
            color: var(--color-danger);
        }

        .rank-trend.stable {
            color: var(--color-text-muted);
        }

        .trend-arrow {
            font-size: 0.75rem;
        }

        @media (max-width: 768px) {
            .ranking-row {
                flex-wrap: wrap;
                gap: 10px;
                padding: 14px 16px;
            }
            .rank-stats {
                gap: 14px;
                flex-wrap: wrap;
            }
            .rank-stat-value {
                font-size: 0.9rem;
            }
            .ranking-toolbar {
                flex-direction: column;
                align-items: stretch;
            }
            .ranking-tabs {
                overflow-x: auto;
                flex-wrap: nowrap;
                padding: 4px;
            }
            .ranking-tab {
                font-size: 0.8rem;
                padding: 7px 14px;
            }
            .ranking-search {
                width: 100%;
            }
            .ranking-search input {
                width: 100%;
            }
            .rank-trend {
                min-width: auto;
            }
        }

        @media (max-width: 520px) {
            .ranking-row {
                gap: 8px;
                padding: 12px;
            }
            .rank-cover {
                width: 40px;
                height: 40px;
            }
            .rank-number {
                font-size: 1.2rem;
                min-width: 32px;
            }
            .rank-name {
                font-size: 0.9rem;
            }
            .rank-stats {
                gap: 10px;
            }
        }

        /* ========== STATS HIGHLIGHT SECTION ========== */
        .stats-highlight-section {
            padding: var(--section-gap) 0;
            background: var(--color-surface);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

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

        .stat-card {
            text-align: center;
            padding: 32px 20px;
            background: var(--color-bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
        }

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

        .stat-card-icon {
            font-size: 2rem;
            margin-bottom: 12px;
        }

        .stat-card-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.01em;
            margin-bottom: 4px;
        }

        .stat-card-label {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-card {
                padding: 24px 16px;
            }
            .stat-card-value {
                font-size: 1.6rem;
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card-value {
                font-size: 1.3rem;
            }
        }

        /* ========== RELATED CONTENT SECTION ========== */
        .related-section {
            padding: var(--section-gap) 0;
        }

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

        .related-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            cursor: pointer;
        }

        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-xl);
            border-color: var(--color-accent);
        }

        .related-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            background: var(--color-border-light);
        }

        .related-card-body {
            padding: 18px 20px 20px;
        }

        .related-card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--color-accent);
            background: rgba(240, 165, 0, 0.1);
            padding: 3px 10px;
            border-radius: 12px;
            margin-bottom: 8px;
        }

        .related-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 6px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card p {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 12px;
            font-size: 0.78rem;
            color: var(--color-text-muted);
        }

        @media (max-width: 768px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .related-card-img {
                height: 140px;
            }
        }

        @media (max-width: 520px) {
            .related-grid {
                grid-template-columns: 1fr;
            }
            .related-card-img {
                height: 180px;
            }
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            padding: var(--section-gap) 0;
            background: var(--color-primary);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 27, 61, 0.92) 0%, rgba(15, 27, 61, 0.78) 100%);
            z-index: 1;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-card {
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
            padding: 48px 32px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-xl);
            border: 1px solid rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
        }

        .cta-card h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 12px;
        }

        .cta-card p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.72);
            margin-bottom: 28px;
            line-height: 1.6;
        }

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

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            background: var(--color-accent);
            color: var(--color-primary);
            border-radius: 28px;
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-normal);
            box-shadow: 0 4px 16px rgba(240, 165, 0, 0.35);
        }

        .btn-primary:hover {
            background: var(--color-accent-glow);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(240, 165, 0, 0.5);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            background: transparent;
            color: #ffffff;
            border: 2px solid rgba(255, 255, 255, 0.35);
            border-radius: 28px;
            font-weight: 600;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-normal);
        }

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

        @media (max-width: 768px) {
            .cta-card {
                padding: 32px 20px;
            }
            .cta-card h2 {
                font-size: 1.5rem;
            }
        }

        /* ========== FAQ SECTION ========== */
        .faq-section {
            padding: var(--section-gap) 0;
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-sm);
        }

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

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text);
            text-align: left;
            transition: color var(--transition-fast);
            gap: 12px;
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 1.2rem;
            color: var(--color-text-muted);
            transition: transform var(--transition-normal);
            font-weight: 300;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        .faq-answer p {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

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

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-brand .logo-link {
            font-size: 1.25rem;
            margin-bottom: 12px;
            display: inline-flex;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 8px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        /* ========== SECTION SPACING RESPONSIVE ========== */
        @media (max-width: 768px) {
            :root {
                --section-gap: 48px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --section-gap: 36px;
            }
        }

        /* ========== UTILITY ========== */
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        /* ========== FOCUS STYLES ========== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }

        /* ========== SELECTION ========== */
        ::selection {
            background: rgba(240, 165, 0, 0.25);
            color: var(--color-text);
        }