/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0f0f1a;
            --primary-light: #1a1a2e;
            --primary-mid: #16213e;
            --secondary: #d4a853;
            --secondary-light: #e8c46a;
            --secondary-glow: rgba(212, 168, 83, 0.25);
            --accent: #00b894;
            --accent-light: #00d9a0;
            --accent-glow: rgba(0, 184, 148, 0.2);
            --bg-white: #ffffff;
            --bg-light: #f8f9fa;
            --bg-dark: #0f0f1a;
            --bg-card: #ffffff;
            --text-primary: #ffffff;
            --text-secondary: #b0b0c0;
            --text-dark: #1a1a2e;
            --text-muted: #6c757d;
            --text-body: #2d3436;
            --border-color: rgba(212, 168, 83, 0.25);
            --border-light: #e9ecef;
            --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 4px 24px rgba(0, 0, 0, 0.12);
            --shadow-lg: 0 8px 48px rgba(0, 0, 0, 0.18);
            --shadow-xl: 0 16px 64px rgba(0, 0, 0, 0.25);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 24px;
            --spacing-lg: 40px;
            --spacing-xl: 60px;
            --spacing-2xl: 80px;
            --font-base: 16px;
            --font-sm: 14px;
            --font-xs: 12px;
            --font-lg: 18px;
            --font-xl: 22px;
            --font-2xl: 30px;
            --font-3xl: 42px;
            --font-4xl: 56px;
            --max-width: 1200px;
            --nav-height: 72px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
            font-size: var(--font-base);
            line-height: 1.6;
            color: var(--text-body);
            background: var(--bg-white);
            overflow-x: hidden;
        }

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

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

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

        button {
            cursor: pointer;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

        /* ===== Container ===== */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }

        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }

        /* ===== Typography ===== */
        .section-title {
            font-size: var(--font-3xl);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: var(--spacing-sm);
            color: var(--text-dark);
        }

        .section-title-light {
            color: var(--text-primary);
        }

        .section-subtitle {
            font-size: var(--font-lg);
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto var(--spacing-lg);
            text-align: center;
            line-height: 1.7;
        }

        .section-subtitle-light {
            color: var(--text-secondary);
        }

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

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: var(--spacing-xs);
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: var(--font-base);
            transition: var(--transition);
            border: 2px solid transparent;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--secondary);
            color: var(--primary);
            border-color: var(--secondary);
        }
        .btn-primary:hover {
            background: var(--secondary-light);
            border-color: var(--secondary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 32px var(--secondary-glow);
        }

        .btn-outline {
            background: transparent;
            color: var(--text-primary);
            border-color: rgba(255, 255, 255, 0.4);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--text-primary);
            transform: translateY(-2px);
        }

        .btn-dark {
            background: var(--primary);
            color: var(--text-primary);
            border-color: var(--primary);
        }
        .btn-dark:hover {
            background: var(--primary-light);
            border-color: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-accent {
            background: var(--accent);
            color: var(--text-primary);
            border-color: var(--accent);
        }
        .btn-accent:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 32px var(--accent-glow);
        }

        .btn-sm {
            padding: 10px 22px;
            font-size: var(--font-sm);
        }

        .btn-lg {
            padding: 18px 44px;
            font-size: var(--font-lg);
        }

        .btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-sm);
            align-items: center;
            justify-content: center;
        }

        /* ===== Badge / Tag ===== */
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: var(--font-xs);
            font-weight: 600;
            letter-spacing: 0.3px;
            background: var(--secondary-glow);
            color: var(--secondary);
            border: 1px solid var(--border-color);
        }

        .badge-accent {
            background: var(--accent-glow);
            color: var(--accent);
            border-color: rgba(0, 184, 148, 0.3);
        }

        .badge-white {
            background: rgba(255, 255, 255, 0.12);
            color: var(--text-primary);
            border-color: rgba(255, 255, 255, 0.2);
        }

        /* ===== Card ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }

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

        .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            transition: var(--transition);
        }

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

        .card-body {
            padding: var(--spacing-md);
        }

        .card-title {
            font-size: var(--font-lg);
            font-weight: 700;
            margin-bottom: var(--spacing-xs);
            color: var(--text-dark);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-text {
            font-size: var(--font-sm);
            color: var(--text-muted);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            font-size: var(--font-xs);
            color: var(--text-muted);
            margin-top: var(--spacing-sm);
            padding-top: var(--spacing-sm);
            border-top: 1px solid var(--border-light);
        }

        .card-meta i {
            margin-right: 4px;
        }

        /* ===== Section Spacing ===== */
        .section {
            padding: var(--spacing-2xl) 0;
        }

        .section-dark {
            background: var(--bg-dark);
            color: var(--text-primary);
        }

        .section-light {
            background: var(--bg-light);
        }

        /* ===== Header & Navigation ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(15, 15, 26, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(212, 168, 83, 0.15);
            transition: var(--transition);
        }

        .header.scrolled {
            background: rgba(15, 15, 26, 0.98);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: var(--spacing-xs);
            font-size: var(--font-xl);
            font-weight: 800;
            color: var(--text-primary);
            flex-shrink: 0;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--secondary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
        }

        .logo span {
            background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

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

        .nav a {
            padding: 8px 20px;
            border-radius: 50px;
            font-size: var(--font-sm);
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }

        .nav a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }

        .nav a.active {
            color: var(--secondary);
            background: rgba(212, 168, 83, 0.12);
        }

        .nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--secondary);
            border-radius: 2px;
        }

        .nav-cta {
            margin-left: var(--spacing-sm);
        }

        .nav-cta a {
            background: var(--secondary);
            color: var(--primary) !important;
            font-weight: 700;
            padding: 10px 24px !important;
            border-radius: 50px !important;
        }

        .nav-cta a:hover {
            background: var(--secondary-light) !important;
            transform: translateY(-1px);
            box-shadow: 0 4px 20px var(--secondary-glow);
        }

        /* Mobile Menu Toggle */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 28px;
            padding: 4px 0;
            background: none;
            border: none;
            cursor: pointer;
        }

        .menu-toggle span {
            display: block;
            width: 100%;
            height: 2.5px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: var(--transition);
            transform-origin: center;
        }

        .menu-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            background: var(--bg-dark);
            padding-top: var(--nav-height);
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.35;
            transform: scale(1.05);
            animation: heroZoom 20s ease-in-out infinite alternate;
        }

        @keyframes heroZoom {
            0% {
                transform: scale(1.05);
            }
            100% {
                transform: scale(1.12);
            }
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg,
                    rgba(15, 15, 26, 0.92) 0%,
                    rgba(15, 15, 26, 0.70) 50%,
                    rgba(15, 15, 26, 0.88) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: var(--spacing-xl) 0;
        }

        .hero-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--spacing-xl);
            align-items: center;
        }

        .hero-text .badge {
            margin-bottom: var(--spacing-md);
        }

        .hero-title {
            font-size: var(--font-4xl);
            font-weight: 900;
            line-height: 1.1;
            color: var(--text-primary);
            margin-bottom: var(--spacing-md);
        }

        .hero-title span {
            background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 50%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: var(--font-lg);
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 540px;
            margin-bottom: var(--spacing-lg);
        }

        .hero-stats {
            display: flex;
            gap: var(--spacing-lg);
            margin-top: var(--spacing-lg);
            padding-top: var(--spacing-lg);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

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

        .hero-stat-number {
            font-size: var(--font-2xl);
            font-weight: 800;
            color: var(--secondary);
        }

        .hero-stat-label {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            margin-top: 4px;
        }

        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
        }

        .hero-visual-img {
            width: 100%;
            max-width: 520px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            border: 1px solid rgba(212, 168, 83, 0.15);
            transform: perspective(1000px) rotateY(-4deg);
            transition: var(--transition);
        }

        .hero-visual-img:hover {
            transform: perspective(1000px) rotateY(0deg);
        }

        .hero-floating-tag {
            position: absolute;
            bottom: -12px;
            left: -12px;
            background: var(--secondary);
            color: var(--primary);
            padding: 10px 20px;
            border-radius: 50px;
            font-weight: 700;
            font-size: var(--font-sm);
            box-shadow: 0 8px 30px var(--secondary-glow);
            animation: floatTag 3s ease-in-out infinite;
        }

        @keyframes floatTag {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-8px);
            }
        }

        /* ===== Features ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
            margin-top: var(--spacing-lg);
        }

        .feature-card {
            text-align: center;
            padding: var(--spacing-lg) var(--spacing-md);
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-color);
        }

        .feature-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto var(--spacing-sm);
            background: linear-gradient(135deg, var(--secondary-glow), var(--accent-glow));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: var(--secondary);
            transition: var(--transition);
        }

        .feature-card:hover .feature-icon {
            transform: scale(1.1);
            color: var(--accent);
        }

        .feature-title {
            font-size: var(--font-lg);
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: var(--spacing-xs);
        }

        .feature-desc {
            font-size: var(--font-sm);
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== Categories ===== */
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
            margin-top: var(--spacing-lg);
        }

        .category-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-dark);
            aspect-ratio: 4 / 3;
            display: flex;
            align-items: flex-end;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid rgba(255, 255, 255, 0.06);
        }

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

        .category-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

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

        .category-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 15, 26, 0.9) 0%, rgba(15, 15, 26, 0.2) 60%, transparent 100%);
            z-index: 1;
        }

        .category-info {
            position: relative;
            z-index: 2;
            padding: var(--spacing-md);
            width: 100%;
        }

        .category-name {
            font-size: var(--font-xl);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .category-count {
            font-size: var(--font-sm);
            color: var(--text-secondary);
        }

        .category-tag {
            position: absolute;
            top: var(--spacing-sm);
            right: var(--spacing-sm);
            z-index: 2;
        }

        /* ===== Latest News (CMS) ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
            margin-top: var(--spacing-lg);
        }

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

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

        .news-card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            transition: var(--transition);
        }

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

        .news-card-body {
            padding: var(--spacing-md);
        }

        .news-card-category {
            display: inline-block;
            font-size: var(--font-xs);
            font-weight: 600;
            color: var(--secondary);
            background: var(--secondary-glow);
            padding: 2px 12px;
            border-radius: 50px;
            margin-bottom: var(--spacing-xs);
        }

        .news-card-title {
            font-size: var(--font-lg);
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: var(--spacing-xs);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card-excerpt {
            font-size: var(--font-sm);
            color: var(--text-muted);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: var(--spacing-sm);
        }

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

        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: var(--spacing-xl);
            color: var(--text-muted);
            font-size: var(--font-lg);
            background: var(--bg-light);
            border-radius: var(--radius-md);
        }

        /* ===== Stats / Data ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
            margin-top: var(--spacing-lg);
        }

        .stat-card {
            text-align: center;
            padding: var(--spacing-lg) var(--spacing-md);
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
        }

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

        .stat-number {
            font-size: var(--font-3xl);
            font-weight: 900;
            color: var(--secondary);
            line-height: 1.1;
        }

        .stat-number .plus {
            font-size: var(--font-xl);
            color: var(--accent);
        }

        .stat-label {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            margin-top: var(--spacing-xs);
        }

        /* ===== Process / How It Works ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
            margin-top: var(--spacing-lg);
            position: relative;
        }

        .process-grid::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: linear-gradient(to right, var(--secondary), var(--accent), var(--secondary));
            opacity: 0.3;
            z-index: 0;
        }

        .process-step {
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .step-number {
            width: 80px;
            height: 80px;
            margin: 0 auto var(--spacing-sm);
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: var(--font-2xl);
            font-weight: 900;
            color: var(--secondary);
            border: 2px solid var(--border-color);
            transition: var(--transition);
        }

        .process-step:hover .step-number {
            transform: scale(1.08);
            box-shadow: 0 0 40px var(--secondary-glow);
            border-color: var(--secondary);
        }

        .step-title {
            font-size: var(--font-lg);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .step-desc {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: var(--spacing-lg) auto 0;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }

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

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: var(--spacing-md);
            font-size: var(--font-lg);
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            user-select: none;
            transition: var(--transition);
            gap: var(--spacing-sm);
        }

        .faq-question i {
            color: var(--secondary);
            font-size: var(--font-lg);
            transition: var(--transition);
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 var(--spacing-md);
            color: var(--text-muted);
            line-height: 1.8;
            font-size: var(--font-sm);
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
            padding: 0 var(--spacing-md) var(--spacing-md);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
        }

        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }

        .cta-title {
            font-size: var(--font-3xl);
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
        }

        .cta-desc {
            font-size: var(--font-lg);
            color: var(--text-secondary);
            margin-bottom: var(--spacing-lg);
            line-height: 1.7;
        }

        .cta-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-sm);
            justify-content: center;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            color: var(--text-secondary);
            padding: var(--spacing-xl) 0 var(--spacing-md);
            border-top: 1px solid rgba(212, 168, 83, 0.1);
        }

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

        .footer-brand .logo {
            margin-bottom: var(--spacing-sm);
        }

        .footer-desc {
            font-size: var(--font-sm);
            line-height: 1.8;
            max-width: 360px;
            color: var(--text-secondary);
        }

        .footer-heading {
            font-size: var(--font-base);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-xs);
        }

        .footer-links a {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            transition: var(--transition);
            padding: 4px 0;
        }

        .footer-links a:hover {
            color: var(--secondary);
            padding-left: 4px;
        }

        .footer-social {
            display: flex;
            gap: var(--spacing-xs);
            margin-top: var(--spacing-sm);
        }

        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            transition: var(--transition);
            font-size: var(--font-lg);
        }

        .footer-social a:hover {
            background: var(--secondary);
            color: var(--primary);
            transform: translateY(-2px);
        }

        .footer-bottom {
            padding-top: var(--spacing-md);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: var(--spacing-sm);
            font-size: var(--font-sm);
        }

        .footer-bottom-links {
            display: flex;
            gap: var(--spacing-md);
        }

        .footer-bottom-links a {
            color: var(--text-secondary);
        }

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

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-inner {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .hero-desc {
                margin-left: auto;
                margin-right: auto;
            }
            .hero-stats {
                justify-content: center;
            }
            .hero-visual {
                display: none;
            }
            .hero-title {
                font-size: var(--font-3xl);
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .categories-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-grid::before {
                display: none;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .section-title {
                font-size: var(--font-2xl);
            }
        }

        @media (max-width: 768px) {
            :root {
                --font-4xl: 38px;
                --font-3xl: 30px;
                --font-2xl: 24px;
                --spacing-2xl: 50px;
                --spacing-xl: 40px;
            }

            .nav {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(15, 15, 26, 0.98);
                backdrop-filter: blur(16px);
                flex-direction: column;
                padding: var(--spacing-md);
                gap: var(--spacing-xs);
                transform: translateY(-110%);
                opacity: 0;
                transition: var(--transition);
                border-bottom: 1px solid rgba(212, 168, 83, 0.15);
                align-items: stretch;
            }

            .nav.open {
                transform: translateY(0);
                opacity: 1;
            }

            .nav a {
                padding: 12px 20px;
                text-align: center;
                font-size: var(--font-base);
            }

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

            .nav-cta {
                margin-left: 0;
                margin-top: var(--spacing-xs);
            }

            .nav-cta a {
                text-align: center;
                display: block;
            }

            .menu-toggle {
                display: flex;
            }

            .hero-title {
                font-size: var(--font-3xl);
            }
            .hero-stats {
                flex-wrap: wrap;
                gap: var(--spacing-md);
            }

            .features-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-sm);
            }
            .feature-card {
                padding: var(--spacing-md) var(--spacing-sm);
            }

            .categories-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-sm);
            }

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

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-sm);
            }

            .process-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-sm);
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }

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

            .cta-title {
                font-size: var(--font-2xl);
            }

            .section {
                padding: var(--spacing-xl) 0;
            }
        }

        @media (max-width: 520px) {
            :root {
                --font-4xl: 30px;
                --font-3xl: 26px;
                --font-2xl: 22px;
                --font-xl: 18px;
            }

            .hero-title {
                font-size: var(--font-2xl);
            }
            .hero-desc {
                font-size: var(--font-base);
            }
            .hero-stats {
                flex-direction: column;
                gap: var(--spacing-sm);
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .categories-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .btn-lg {
                padding: 14px 30px;
                font-size: var(--font-base);
            }
            .btn-group {
                flex-direction: column;
                width: 100%;
            }
            .btn-group .btn {
                width: 100%;
                justify-content: center;
            }
            .container {
                padding: 0 var(--spacing-sm);
            }
            .faq-question {
                font-size: var(--font-base);
                padding: var(--spacing-sm);
            }
            .footer-bottom-links {
                flex-wrap: wrap;
                justify-content: center;
            }
        }

        /* ===== Accessibility ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-dark);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--secondary);
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--secondary-light);
        }

        /* ===== Animations ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(30px);
            animation: fadeUp 0.8s ease forwards;
        }

        @keyframes fadeUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .fade-up:nth-child(2) {
            animation-delay: 0.1s;
        }
        .fade-up:nth-child(3) {
            animation-delay: 0.2s;
        }
        .fade-up:nth-child(4) {
            animation-delay: 0.3s;
        }

/* roulang page: article */
:root {
            --primary: #1a7a3a;
            --primary-dark: #0f5c2a;
            --primary-light: #e8f5e9;
            --primary-gradient: linear-gradient(135deg, #1a7a3a 0%, #2daf5e 100%);
            --accent: #ff8c00;
            --accent-dark: #e67e00;
            --accent-light: #fff3e0;
            --bg: #f8faf9;
            --bg-card: #ffffff;
            --bg-dark: #0a1e14;
            --text: #1a2a1f;
            --text-light: #5a6e62;
            --text-white: #ffffff;
            --border: #e2e8e5;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.10);
            --shadow-hover: 0 16px 48px rgba(26, 122, 58, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --container: 1280px;
            --header-h: 72px;
        }

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

        html { scroll-behavior: smooth; }

        body {
            font-family: var(--font);
            color: var(--text);
            background: var(--bg);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }

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

        /* ===== Header / Nav ===== */
        .header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            height: var(--header-h);
            transition: var(--transition);
        }

        .header.scrolled { box-shadow: 0 2px 32px rgba(0,0,0,0.08); }

        .header .container {
            display: flex; align-items: center; justify-content: space-between;
            height: 100%;
        }

        .logo {
            display: flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 800;
            color: var(--primary); letter-spacing: -0.5px;
        }
        .logo:hover { color: var(--primary-dark); transform: scale(1.02); }
        .logo-icon {
            display: flex; align-items: center; justify-content: center;
            width: 40px; height: 40px; background: var(--primary-gradient);
            border-radius: 12px; color: #fff; font-size: 20px;
        }
        .logo span:last-child { background: var(--primary-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

        .nav { display: flex; align-items: center; gap: 6px; }
        .nav a {
            padding: 8px 18px; border-radius: 10px; font-size: 15px; font-weight: 500;
            color: var(--text-light); transition: var(--transition); position: relative;
        }
        .nav a:hover { color: var(--primary); background: var(--primary-light); }
        .nav a.active { color: var(--primary); background: var(--primary-light); font-weight: 600; }
        .nav-cta { margin-left: 12px; }
        .nav-cta a {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 10px 24px; background: var(--primary-gradient); color: #fff;
            border-radius: 12px; font-weight: 600; font-size: 15px;
            box-shadow: 0 4px 16px rgba(26,122,58,0.3);
        }
        .nav-cta a:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(26,122,58,0.4); color: #fff; }

        .menu-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; border: none; background: none; }
        .menu-toggle span { width: 26px; height: 3px; background: var(--text); border-radius: 4px; transition: var(--transition); }

        /* ===== Hero Banner ===== */
        .article-hero {
            position: relative; margin-top: var(--header-h); padding: 60px 0 40px;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover; background-position: center; background-attachment: fixed;
        }
        .article-hero::before {
            content: ''; position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(10,30,20,0.88) 0%, rgba(10,30,20,0.60) 100%);
        }
        .article-hero .container { position: relative; z-index: 2; }
        .article-hero .breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 14px; color: rgba(255,255,255,0.6); margin-bottom: 20px; }
        .article-hero .breadcrumb a { color: rgba(255,255,255,0.7); }
        .article-hero .breadcrumb a:hover { color: #fff; }
        .article-hero .breadcrumb .sep { color: rgba(255,255,255,0.4); }

        .article-hero h1 {
            font-size: clamp(28px, 4vw, 48px); font-weight: 800; color: #fff;
            line-height: 1.25; max-width: 840px; letter-spacing: -0.5px;
        }
        .article-hero .meta {
            display: flex; flex-wrap: wrap; gap: 16px 28px; margin-top: 20px;
            color: rgba(255,255,255,0.7); font-size: 15px;
        }
        .article-hero .meta span { display: flex; align-items: center; gap: 6px; }
        .article-hero .meta .tag {
            display: inline-block; padding: 4px 14px; background: rgba(255,255,255,0.15);
            border-radius: 20px; font-size: 13px; color: #fff; font-weight: 500;
        }

        /* ===== Article Main ===== */
        .article-main { padding: 48px 0 80px; }
        .article-grid { display: grid; grid-template-columns: 1fr 360px; gap: 48px; align-items: start; }

        .article-content { background: var(--bg-card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 40px; overflow: hidden; }

        .article-content .cover-img {
            width: 100%; border-radius: var(--radius-sm); margin-bottom: 32px;
            aspect-ratio: 16/9; object-fit: cover; background: var(--border);
        }

        .article-body { font-size: 17px; line-height: 1.9; color: var(--text); }
        .article-body p { margin-bottom: 1.4em; }
        .article-body h2 { font-size: 24px; font-weight: 700; margin: 1.6em 0 0.6em; color: var(--text); }
        .article-body h3 { font-size: 20px; font-weight: 600; margin: 1.4em 0 0.5em; color: var(--text); }
        .article-body ul, .article-body ol { padding-left: 1.6em; margin-bottom: 1.4em; }
        .article-body li { margin-bottom: 0.4em; }
        .article-body blockquote {
            border-left: 4px solid var(--primary); padding: 16px 24px; margin: 1.4em 0;
            background: var(--primary-light); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic; color: var(--text-light);
        }
        .article-body img { border-radius: var(--radius-sm); margin: 1.4em 0; }

        .article-footer-bar {
            display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
            margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--border);
        }
        .article-footer-bar .share { display: flex; align-items: center; gap: 10px; }
        .article-footer-bar .share a {
            display: flex; align-items: center; justify-content: center;
            width: 40px; height: 40px; border-radius: 50%; background: var(--bg);
            color: var(--text-light); font-size: 16px; transition: var(--transition);
        }
        .article-footer-bar .share a:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
        .article-footer-bar .back-link { display: inline-flex; align-items: center; gap: 8px; font-weight: 500; color: var(--primary); }

        /* ===== Sidebar ===== */
        .article-sidebar { display: flex; flex-direction: column; gap: 32px; }

        .sidebar-card { background: var(--bg-card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 28px; }
        .sidebar-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 18px; display: flex; align-items: center; gap: 8px; }
        .sidebar-card h3 i { color: var(--primary); }

        .sidebar-list { list-style: none; }
        .sidebar-list li { padding: 12px 0; border-bottom: 1px solid var(--border); }
        .sidebar-list li:last-child { border-bottom: none; }
        .sidebar-list a {
            display: flex; gap: 12px; align-items: flex-start; color: var(--text);
            font-size: 15px; line-height: 1.5;
        }
        .sidebar-list a:hover { color: var(--primary); }
        .sidebar-list .thumb {
            width: 60px; height: 45px; border-radius: 8px; object-fit: cover; flex-shrink: 0;
            background: var(--border);
        }
        .sidebar-list .info { flex: 1; }
        .sidebar-list .info .title { font-weight: 600; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .sidebar-list .info .date { font-size: 13px; color: var(--text-light); margin-top: 4px; }

        .sidebar-tags { display: flex; flex-wrap: wrap; gap: 8px; }
        .sidebar-tags a {
            padding: 6px 16px; background: var(--bg); border-radius: 20px; font-size: 14px;
            color: var(--text-light); transition: var(--transition);
        }
        .sidebar-tags a:hover { background: var(--primary); color: #fff; }

        .sidebar-cta {
            background: var(--primary-gradient); padding: 32px 28px; text-align: center;
            border-radius: var(--radius); color: #fff;
        }
        .sidebar-cta h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; color: #fff; }
        .sidebar-cta p { font-size: 15px; opacity: 0.85; margin-bottom: 20px; }
        .sidebar-cta .btn-white {
            display: inline-block; padding: 12px 32px; background: #fff; color: var(--primary);
            border-radius: 12px; font-weight: 700; font-size: 16px; box-shadow: 0 4px 16px rgba(0,0,0,0.15);
        }
        .sidebar-cta .btn-white:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(0,0,0,0.2); color: var(--primary-dark); }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark); color: rgba(255,255,255,0.75); padding: 60px 0 0;
        }
        .footer .logo { color: #fff; }
        .footer .logo span:last-child { -webkit-text-fill-color: #fff; background: none; }
        .footer-grid {
            display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px;
            padding-bottom: 32px; border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand .footer-desc { margin: 16px 0 20px; font-size: 15px; line-height: 1.7; color: rgba(255,255,255,0.6); max-width: 360px; }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a {
            display: flex; align-items: center; justify-content: center;
            width: 40px; height: 40px; border-radius: 50%; background: rgba(255,255,255,0.08);
            color: rgba(255,255,255,0.7); font-size: 18px; transition: var(--transition);
        }
        .footer-social a:hover { background: var(--primary); color: #fff; transform: translateY(-3px); }

        .footer-heading { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 18px; }
        .footer-links { display: flex; flex-direction: column; gap: 10px; }
        .footer-links a { color: rgba(255,255,255,0.6); font-size: 15px; transition: var(--transition); }
        .footer-links a:hover { color: var(--accent); padding-left: 4px; }
        .footer-links a i { width: 20px; }

        .footer-bottom {
            display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
            padding: 24px 0; gap: 16px; font-size: 14px; color: rgba(255,255,255,0.4);
        }
        .footer-bottom-links { display: flex; gap: 20px; }
        .footer-bottom-links a { color: rgba(255,255,255,0.4); font-size: 14px; }
        .footer-bottom-links a:hover { color: var(--accent); }

        /* ===== Not Found ===== */
        .not-found { text-align: center; padding: 80px 20px; }
        .not-found i { font-size: 64px; color: var(--border); margin-bottom: 20px; }
        .not-found h2 { font-size: 28px; font-weight: 700; margin-bottom: 12px; }
        .not-found p { color: var(--text-light); margin-bottom: 24px; font-size: 16px; }
        .not-found a { display: inline-block; padding: 12px 32px; background: var(--primary-gradient); color: #fff; border-radius: 12px; font-weight: 600; }

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

        @media (max-width: 768px) {
            .nav { display: none; position: absolute; top: var(--header-h); left: 0; right: 0; background: rgba(255,255,255,0.98); backdrop-filter: blur(20px); flex-direction: column; padding: 16px 24px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow-lg); }
            .nav.open { display: flex; }
            .nav a { width: 100%; padding: 12px 16px; }
            .nav-cta { margin-left: 0; width: 100%; }
            .nav-cta a { width: 100%; justify-content: center; }
            .menu-toggle { display: flex; }

            .article-content { padding: 24px; }
            .article-hero { padding: 40px 0 28px; }
            .article-hero h1 { font-size: 24px; }
            .article-body { font-size: 16px; }

            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .footer-bottom-links { justify-content: center; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .article-content { padding: 16px; }
            .article-hero h1 { font-size: 20px; }
            .sidebar-card { padding: 20px; }
            .article-footer-bar { flex-direction: column; gap: 16px; }
        }

        /* ===== Animations ===== */
        @keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
        .article-hero .container { animation: fadeUp 0.6s ease-out; }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0ea83e;
            --primary-dark: #0a8a32;
            --primary-light: #d4f5d4;
            --primary-glow: rgba(14, 168, 62, 0.25);
            --accent: #f59e0b;
            --accent-dark: #d4880a;
            --accent-light: #fef3c7;
            --bg-body: #f8fafc;
            --bg-white: #ffffff;
            --bg-dark: #0f1724;
            --bg-card: #ffffff;
            --bg-section-alt: #f0fdf4;
            --text-primary: #0f1724;
            --text-body: #334155;
            --text-muted: #94a3b8;
            --text-white: #ffffff;
            --border-color: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --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);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.10);
            --shadow-glow: 0 0 30px rgba(14, 168, 62, 0.20);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.6;
            color: var(--text-body);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }

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

        /* ===== 导航 ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-height);
            background: rgba(15, 23, 36, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            z-index: 1000;
            transition: background var(--transition), box-shadow var(--transition);
        }
        .header.scrolled {
            background: rgba(15, 23, 36, 0.98);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-white);
            text-decoration: none;
            letter-spacing: 0.5px;
        }
        .logo:hover {
            color: var(--text-white);
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: 12px;
            font-size: 1.2rem;
            color: #fff;
            box-shadow: 0 4px 12px var(--primary-glow);
        }
        .logo span {
            background: linear-gradient(135deg, #ffffff 60%, var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.92rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.75);
            text-decoration: none;
            transition: all var(--transition);
            position: relative;
        }
        .nav a:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.08);
        }
        .nav a.active {
            color: #ffffff;
            background: rgba(14, 168, 62, 0.25);
            box-shadow: inset 0 0 0 1px rgba(14, 168, 62, 0.3);
        }
        .nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        .nav-cta {
            margin-left: 12px;
        }
        .nav-cta a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-size: 0.92rem;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            box-shadow: 0 4px 16px var(--primary-glow);
            transition: all var(--transition);
        }
        .nav-cta a:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px var(--primary-glow);
            color: #fff;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
        }
        .nav-cta a i {
            font-size: 0.85rem;
        }
        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            background: none;
            border: none;
        }
        .mobile-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: #fff;
            border-radius: 4px;
            transition: all var(--transition);
        }
        .mobile-toggle.open span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }
        .mobile-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .mobile-toggle.open span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        /* ===== Hero / Banner ===== */
        .category-hero {
            position: relative;
            padding: 140px 0 90px;
            background: var(--bg-dark);
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.20;
            z-index: 1;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 36, 0.92) 40%, rgba(14, 168, 62, 0.25) 100%);
            z-index: 2;
        }
        .category-hero .container {
            position: relative;
            z-index: 3;
        }
        .category-hero-content {
            max-width: 720px;
        }
        .category-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            border-radius: 100px;
            background: rgba(14, 168, 62, 0.20);
            border: 1px solid rgba(14, 168, 62, 0.30);
            font-size: 0.82rem;
            font-weight: 500;
            color: var(--primary-light);
            margin-bottom: 20px;
        }
        .category-hero-badge i {
            font-size: 0.75rem;
            color: var(--primary);
        }
        .category-hero h1 {
            font-size: 3rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }
        .category-hero h1 span {
            color: var(--primary);
            background: linear-gradient(135deg, var(--primary), #6ee7b7);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .category-hero p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 600px;
        }
        .category-hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .category-hero-actions .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 34px;
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            box-shadow: 0 6px 24px var(--primary-glow);
            transition: all var(--transition);
        }
        .category-hero-actions .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px var(--primary-glow);
        }
        .category-hero-actions .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 34px;
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            transition: all var(--transition);
        }
        .category-hero-actions .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.15);
            transform: translateY(-3px);
        }
        .category-hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            margin-top: 40px;
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .category-hero-stats .stat-item {
            text-align: left;
        }
        .category-hero-stats .stat-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .category-hero-stats .stat-number span {
            color: var(--primary);
        }
        .category-hero-stats .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 4px;
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-section-alt);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }
        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-header p {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .section-dark .section-header h2 {
            color: var(--text-white);
        }
        .section-dark .section-header p {
            color: rgba(255, 255, 255, 0.6);
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: 100px;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: 0.78rem;
            font-weight: 600;
            margin-bottom: 14px;
        }
        .section-tag i {
            font-size: 0.7rem;
        }

        /* ===== 赛事分类卡片 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .category-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            cursor: pointer;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary);
        }
        .category-card .icon-wrap {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 64px;
            height: 64px;
            border-radius: 18px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 1.6rem;
            margin: 0 auto 18px;
            transition: all var(--transition);
        }
        .category-card:hover .icon-wrap {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 24px var(--primary-glow);
        }
        .category-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .category-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .category-card .badge-count {
            display: inline-block;
            padding: 3px 14px;
            border-radius: 100px;
            background: var(--border-light);
            font-size: 0.78rem;
            font-weight: 500;
            color: var(--text-muted);
        }
        .category-card:hover .badge-count {
            background: var(--primary-light);
            color: var(--primary-dark);
        }

        /* ===== 热门赛事卡片 ===== */
        .event-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .event-card {
            display: flex;
            flex-direction: column;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .event-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary);
        }
        .event-card .event-img {
            position: relative;
            height: 200px;
            overflow: hidden;
            background: var(--bg-dark);
        }
        .event-card .event-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .event-card:hover .event-img img {
            transform: scale(1.05);
        }
        .event-card .event-overlay {
            position: absolute;
            top: 12px;
            left: 12px;
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .event-card .event-overlay .tag {
            padding: 4px 12px;
            border-radius: 100px;
            font-size: 0.72rem;
            font-weight: 600;
            background: rgba(15, 23, 36, 0.75);
            color: #fff;
            backdrop-filter: blur(8px);
        }
        .event-card .event-overlay .tag.live {
            background: rgba(239, 68, 68, 0.85);
        }
        .event-card .event-overlay .tag.hot {
            background: rgba(245, 158, 11, 0.85);
        }
        .event-card .event-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .event-card .event-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .event-card .event-body .event-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 12px;
        }
        .event-card .event-body .event-meta i {
            margin-right: 5px;
            color: var(--primary);
        }
        .event-card .event-body .event-desc {
            font-size: 0.9rem;
            color: var(--text-body);
            line-height: 1.6;
            margin-bottom: 16px;
            flex: 1;
        }
        .event-card .event-body .event-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            border-top: 1px solid var(--border-color);
        }
        .event-card .event-body .event-footer .price {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent);
        }
        .event-card .event-body .event-footer .price small {
            font-size: 0.78rem;
            font-weight: 400;
            color: var(--text-muted);
        }
        .event-card .event-body .event-footer .btn-sm {
            padding: 8px 20px;
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            font-weight: 600;
            color: #fff;
            background: var(--primary);
            transition: all var(--transition);
        }
        .event-card .event-body .event-footer .btn-sm:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px var(--primary-glow);
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }
        .stat-card {
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-md);
            padding: 36px 24px;
            text-align: center;
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: all var(--transition);
        }
        .stat-card:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(14, 168, 62, 0.3);
            transform: translateY(-4px);
        }
        .stat-card .stat-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 14px;
        }
        .stat-card .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .stat-card .stat-number span {
            color: var(--accent);
        }
        .stat-card .stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 6px;
        }

        /* ===== 观赛流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }
        .steps-grid::before {
            content: '';
            position: absolute;
            top: 48px;
            left: 12%;
            right: 12%;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary));
            opacity: 0.2;
            z-index: 0;
        }
        .step-card {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 32px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .step-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }
        .step-card .step-number {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-size: 1.3rem;
            font-weight: 800;
            margin: 0 auto 18px;
            box-shadow: 0 6px 20px var(--primary-glow);
        }
        .step-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary);
        }
        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            transition: all var(--transition);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }
        .faq-item .faq-question i {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: transform var(--transition);
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-item .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.92rem;
            color: var(--text-body);
            line-height: 1.7;
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }
        .faq-item .faq-question:hover {
            color: var(--primary);
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--bg-dark) 0%, #0a1a2e 100%);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 1;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.65);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .cta-section .cta-buttons {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }
        .cta-section .cta-buttons .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 40px;
            border-radius: var(--radius-sm);
            font-size: 1.05rem;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            box-shadow: 0 6px 30px var(--primary-glow);
            transition: all var(--transition);
        }
        .cta-section .cta-buttons .btn-cta-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 50px var(--primary-glow);
        }
        .cta-section .cta-buttons .btn-cta-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 40px;
            border-radius: var(--radius-sm);
            font-size: 1.05rem;
            font-weight: 600;
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            transition: all var(--transition);
        }
        .cta-section .cta-buttons .btn-cta-secondary:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-3px);
        }
        .cta-section .cta-trust {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 28px;
            margin-top: 36px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.35);
        }
        .cta-section .cta-trust i {
            color: var(--primary);
            margin-right: 6px;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-brand .logo {
            margin-bottom: 16px;
            font-size: 1.2rem;
        }
        .footer-desc {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
            line-height: 1.7;
            margin-bottom: 20px;
            max-width: 360px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.6);
            font-size: 1.1rem;
            transition: all var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
            box-shadow: 0 6px 20px var(--primary-glow);
        }
        .footer-heading {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .footer-links a:hover {
            color: var(--primary);
            transform: translateX(4px);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 24px 0;
            gap: 16px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.3);
        }
        .footer-bottom-links {
            display: flex;
            gap: 20px;
        }
        .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.3);
            text-decoration: none;
            transition: color var(--transition);
        }
        .footer-bottom-links a:hover {
            color: var(--primary);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid::before {
                display: none;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-hero h1 {
                font-size: 2.4rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }
            .nav {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                width: 100%;
                flex-direction: column;
                background: rgba(15, 23, 36, 0.98);
                backdrop-filter: blur(20px);
                padding: 16px 24px 24px;
                gap: 6px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
                box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
            }
            .nav.open {
                display: flex;
            }
            .nav a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }
            .nav a.active::after {
                display: none;
            }
            .nav-cta {
                margin-left: 0;
                margin-top: 8px;
                width: 100%;
            }
            .nav-cta a {
                width: 100%;
                justify-content: center;
            }
            .mobile-toggle {
                display: flex;
            }
            .category-hero {
                padding: 110px 0 60px;
            }
            .category-hero h1 {
                font-size: 1.9rem;
            }
            .category-hero p {
                font-size: 0.95rem;
            }
            .category-hero-stats {
                gap: 20px;
            }
            .category-hero-stats .stat-number {
                font-size: 1.4rem;
            }
            .section {
                padding: 56px 0;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .event-grid {
                grid-template-columns: 1fr;
            }
            .category-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-section h2 {
                font-size: 1.7rem;
            }
            .cta-section .cta-buttons .btn-cta-primary,
            .cta-section .cta-buttons .btn-cta-secondary {
                width: 100%;
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .category-hero h1 {
                font-size: 1.6rem;
            }
            .category-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .category-hero-stats {
                flex-direction: column;
                gap: 14px;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .event-card .event-body {
                padding: 16px 18px 20px;
            }
            .stat-card .stat-number {
                font-size: 1.6rem;
            }
            .footer-grid {
                gap: 24px;
            }
        }

        /* ===== 辅助 ===== */
        .text-center {
            text-align: center;
        }
        .mt-12 {
            margin-top: 12px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-40 {
            margin-top: 40px;
        }
        .gap-8 {
            gap: 8px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }