/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0c1e36;
            --primary-light: #132b4a;
            --primary-dark: #081424;
            --accent: #1a8fe0;
            --accent-hover: #147ac4;
            --accent-light: #e8f4fd;
            --gold: #f5a623;
            --gold-hover: #e0961a;
            --bg: #f5f7fa;
            --bg-alt: #eef1f6;
            --bg-dark: #0c1e36;
            --card-bg: #ffffff;
            --text: #1a2332;
            --text-light: #5e6f82;
            --text-white: #f0f4f8;
            --border: #dce2ea;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 20px rgba(12, 30, 54, 0.08);
            --shadow-hover: 0 12px 40px rgba(12, 30, 54, 0.14);
            --shadow-dark: 0 8px 32px rgba(12, 30, 54, 0.25);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --max-width: 1240px;
            --header-top-h: 60px;
            --header-nav-h: 52px;
            --header-total: 112px;
        }

        /* ===== 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);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 1rem;
            border: none;
            outline: none;
            transition: var(--transition);
        }
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        ul,
        ol {
            list-style: none;
        }

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

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Utility ===== */
        .section-padding {
            padding: 80px 0;
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 48px 0;
            }
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 12px;
            color: var(--primary);
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-light);
            max-width: 680px;
            margin: 0 auto 48px;
            text-align: center;
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 1.7rem;
            }
            .section-subtitle {
                font-size: 1rem;
                margin-bottom: 32px;
            }
        }

        .text-center {
            text-align: center;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .gap-16 {
            gap: 16px;
        }
        .gap-24 {
            gap: 24px;
        }
        .gap-32 {
            gap: 32px;
        }

        .badge {
            display: inline-block;
            padding: 4px 14px;
            font-size: 0.8rem;
            font-weight: 600;
            border-radius: 50px;
            background: var(--accent-light);
            color: var(--accent);
            letter-spacing: 0.3px;
        }
        .badge-gold {
            background: #fef3e0;
            color: var(--gold);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            font-weight: 600;
            font-size: 1rem;
            border-radius: 50px;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(26, 143, 224, 0.3);
        }
        .btn:hover {
            background: var(--accent-hover);
            box-shadow: 0 8px 24px rgba(26, 143, 224, 0.4);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn:active {
            transform: translateY(0);
        }
        .btn-gold {
            background: var(--gold);
            box-shadow: 0 4px 14px rgba(245, 166, 35, 0.3);
        }
        .btn-gold:hover {
            background: var(--gold-hover);
            box-shadow: 0 8px 24px rgba(245, 166, 35, 0.4);
        }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--accent);
            color: var(--accent);
            box-shadow: none;
        }
        .btn-outline:hover {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(26, 143, 224, 0.3);
        }
        .btn-white {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
        }
        .btn-white:hover {
            background: #f0f4f8;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
            color: var(--primary);
        }
        .btn-lg {
            padding: 16px 40px;
            font-size: 1.1rem;
        }

        .tag {
            display: inline-block;
            padding: 2px 12px;
            font-size: 0.75rem;
            font-weight: 500;
            border-radius: 50px;
            background: var(--bg-alt);
            color: var(--text-light);
            transition: var(--transition);
        }
        .tag:hover {
            background: var(--accent-light);
            color: var(--accent);
        }

        /* ===== 双层导航 ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(12, 30, 54, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
        }

        .header .container {
            padding: 0 24px;
        }

        /* 第一行：品牌 + 搜索 + CTA */
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-top-h);
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo i {
            font-size: 1.6rem;
            color: var(--gold);
        }
        .logo span {
            background: linear-gradient(135deg, #fff 30%, var(--gold) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .logo:hover {
            color: #fff;
            opacity: 0.92;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .header-search {
            position: relative;
            display: flex;
            align-items: center;
        }
        .header-search input {
            width: 200px;
            padding: 8px 16px 8px 40px;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: #fff;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .header-search input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }
        .header-search input:focus {
            background: rgba(255, 255, 255, 0.18);
            border-color: var(--accent);
            width: 260px;
        }
        .header-search i {
            position: absolute;
            left: 14px;
            color: rgba(255, 255, 255, 0.45);
            font-size: 0.9rem;
            pointer-events: none;
        }

        .header-cta {
            padding: 6px 20px;
            font-size: 0.85rem;
            font-weight: 600;
            border-radius: 50px;
            background: var(--gold);
            color: var(--primary);
            transition: var(--transition);
            white-space: nowrap;
        }
        .header-cta:hover {
            background: #fff;
            color: var(--primary);
            transform: translateY(-1px);
        }

        /* 第二行：频道Tabs */
        .header-nav {
            display: flex;
            align-items: center;
            height: var(--header-nav-h);
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            gap: 4px;
            padding: 4px 0;
        }
        .header-nav::-webkit-scrollbar {
            display: none;
        }

        .header-nav a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 6px 20px;
            font-size: 0.9rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.7);
            border-radius: 50px;
            white-space: nowrap;
            transition: var(--transition);
            position: relative;
        }
        .header-nav a i {
            font-size: 0.85rem;
        }
        .header-nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }
        .header-nav a.active {
            color: #fff;
            background: var(--accent);
            box-shadow: 0 2px 12px rgba(26, 143, 224, 0.3);
        }
        .header-nav a.active:hover {
            background: var(--accent-hover);
        }

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            background: none;
            color: #fff;
            font-size: 1.4rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
        }
        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        /* ===== 移动端适配 ===== */
        @media (max-width: 868px) {
            .header-search input {
                width: 140px;
            }
            .header-search input:focus {
                width: 180px;
            }
            .header-cta {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
            .logo {
                font-size: 1.2rem;
            }
            .logo i {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-top-h: 56px;
                --header-nav-h: 48px;
                --header-total: 104px;
            }

            .header-top {
                height: var(--header-top-h);
            }

            .header-search {
                display: none;
            }

            .menu-toggle {
                display: block;
            }

            .header-nav-wrap {
                display: none;
                position: absolute;
                top: var(--header-top-h);
                left: 0;
                right: 0;
                background: rgba(12, 30, 54, 0.99);
                backdrop-filter: blur(12px);
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
                padding: 12px 24px;
                max-height: 60vh;
                overflow-y: auto;
            }
            .header-nav-wrap.open {
                display: block;
            }
            .header-nav {
                flex-direction: column;
                height: auto;
                gap: 6px;
                padding: 0;
            }
            .header-nav a {
                width: 100%;
                padding: 10px 16px;
                font-size: 1rem;
            }
        }

        @media (max-width: 520px) {
            .header-cta {
                display: none;
            }
            .logo {
                font-size: 1.05rem;
            }
            .logo i {
                font-size: 1.1rem;
            }
            .header-top {
                height: 50px;
            }
            :root {
                --header-top-h: 50px;
                --header-nav-h: 44px;
                --header-total: 94px;
            }
        }

        /* ===== 占位 (header 固定) ===== */
        .header-spacer {
            height: var(--header-total);
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 580px;
            display: flex;
            align-items: center;
            background: var(--primary-dark);
            overflow: hidden;
            padding: 40px 0 60px;
        }
        .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 24s ease-in-out infinite alternate;
        }
        @keyframes heroZoom {
            0% {
                transform: scale(1.05);
            }
            100% {
                transform: scale(1.15);
            }
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(12, 30, 54, 0.92) 40%, rgba(12, 30, 54, 0.7) 80%, transparent 100%);
        }
        .hero .container {
            position: relative;
            z-index: 2;
            width: 100%;
        }
        .hero-content {
            max-width: 720px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--text-white);
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }
        .hero-badge i {
            color: var(--gold);
        }
        .hero-title {
            font-size: 3.4rem;
            font-weight: 800;
            line-height: 1.15;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }
        .hero-title span {
            background: linear-gradient(135deg, var(--gold), #ffd580);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-desc {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.7;
            margin-bottom: 36px;
            max-width: 600px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        @media (max-width: 768px) {
            .hero {
                min-height: 460px;
                padding: 20px 0 40px;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .hero-badge {
                font-size: 0.75rem;
                padding: 4px 14px;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.7rem;
            }
            .hero-desc {
                font-size: 0.9rem;
            }
            .hero-actions .btn {
                padding: 10px 22px;
                font-size: 0.9rem;
            }
        }

        /* ===== 板块通用 ===== */
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-dark .section-title {
            color: #fff;
        }
        .section-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.65);
        }
        .section-alt {
            background: var(--bg-alt);
        }

        /* ===== 核心服务 / 卡片网格 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 28px;
        }
        .card {
            background: var(--card-bg);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
        }
        .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
        }
        .card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body .badge {
            align-self: flex-start;
            margin-bottom: 12px;
        }
        .card-title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--primary);
            line-height: 1.3;
        }
        .card-text {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 16px;
        }
        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            color: var(--accent);
            font-size: 0.9rem;
            margin-top: auto;
        }
        .card-link i {
            transition: transform 0.2s;
        }
        .card-link:hover i {
            transform: translateX(4px);
        }

        @media (max-width: 640px) {
            .card-grid {
                grid-template-columns: 1fr;
            }
            .card-img {
                height: 180px;
            }
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 32px;
            text-align: center;
        }
        .stat-item {
            padding: 24px 16px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
        }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--gold);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .stat-number {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 480px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .stat-item {
                padding: 16px 12px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
        }

        /* ===== 最新资讯 (CMS) ===== */
        .news-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }
        .news-item {
            display: flex;
            gap: 20px;
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 20px 24px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            align-items: flex-start;
        }
        .news-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateX(4px);
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
            min-width: 120px;
            padding-top: 2px;
        }
        .news-date {
            font-size: 0.8rem;
            color: var(--text-light);
            background: var(--bg-alt);
            padding: 2px 12px;
            border-radius: 50px;
            white-space: nowrap;
        }
        .news-cat {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent);
            background: var(--accent-light);
            padding: 2px 12px;
            border-radius: 50px;
            white-space: nowrap;
        }
        .news-body {
            flex: 1;
            min-width: 0;
        }
        .news-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-title a:hover {
            color: var(--accent);
        }
        .news-excerpt {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-empty {
            text-align: center;
            padding: 48px 24px;
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            color: var(--text-light);
            font-size: 1.05rem;
        }
        .news-empty i {
            font-size: 2.4rem;
            color: var(--border);
            margin-bottom: 16px;
            display: block;
        }

        @media (max-width: 768px) {
            .news-item {
                flex-direction: column;
                gap: 12px;
                padding: 16px 18px;
            }
            .news-meta {
                min-width: auto;
                flex-wrap: wrap;
            }
            .news-title {
                font-size: 1rem;
            }
        }

        /* ===== 优势 / 图文区块 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 28px;
        }
        .feature-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 32px 24px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            text-align: center;
            border: 1px solid var(--border);
        }
        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
            border-color: var(--accent);
        }
        .feature-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--accent-light);
            color: var(--accent);
            font-size: 1.6rem;
            margin-bottom: 18px;
            transition: var(--transition);
        }
        .feature-card:hover .feature-icon {
            background: var(--accent);
            color: #fff;
        }
        .feature-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--primary);
        }
        .feature-desc {
            font-size: 0.92rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        @media (max-width: 640px) {
            .features-grid {
                grid-template-columns: 1fr;
            }
            .feature-card {
                padding: 24px 18px;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--card-bg);
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--accent);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--primary);
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            border: none;
            gap: 16px;
        }
        .faq-question i {
            color: var(--accent);
            font-size: 1.1rem;
            transition: transform 0.3s;
            flex-shrink: 0;
        }
        .faq-question.open i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-answer.open {
            display: block;
        }

        @media (max-width: 768px) {
            .faq-question {
                padding: 14px 18px;
                font-size: 0.95rem;
            }
            .faq-answer {
                padding: 0 18px 14px;
                font-size: 0.9rem;
            }
        }

        /* ===== 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;
            padding: 60px 0;
        }
        .cta-title {
            font-size: 2.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 600px;
            margin: 0 auto 32px;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        @media (max-width: 768px) {
            .cta-title {
                font-size: 1.7rem;
            }
            .cta-desc {
                font-size: 1rem;
            }
            .cta-content {
                padding: 40px 0;
            }
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 0.92rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 340px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--gold);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom a:hover {
            color: var(--gold);
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.6);
            font-size: 1rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--gold);
            color: var(--primary);
            transform: translateY(-2px);
        }

        @media (max-width: 868px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== 移动端导航动画 ===== */
        @media (max-width: 768px) {
            .header-nav-wrap {
                transition: max-height 0.35s ease, opacity 0.25s ease;
                max-height: 0;
                opacity: 0;
                overflow: hidden;
                padding: 0 24px;
            }
            .header-nav-wrap.open {
                max-height: 600px;
                opacity: 1;
                padding: 12px 24px;
            }
        }

        /* ===== 微调 ===== */
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #3b82f6;
            --primary-bg: #eff6ff;
            --secondary: #f59e0b;
            --secondary-dark: #d97706;
            --accent: #06b6d4;
            --bg: #ffffff;
            --bg-alt: #f8fafc;
            --bg-card: #ffffff;
            --text: #0f172a;
            --text-light: #475569;
            --text-muted: #94a3b8;
            --border: #e2e8f0;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 20px rgba(0,0,0,0.06);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.10);
            --shadow-hover: 0 8px 32px rgba(37,99,235,0.15);
            --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --max-width: 1200px;
            --header-h: 70px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
        }
        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); }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text); }
        h1 { font-size: 2.4rem; }
        h2 { font-size: 2rem; }
        h3 { font-size: 1.4rem; }
        h4 { font-size: 1.15rem; }
        p { margin-bottom: 1rem; color: var(--text-light); }
        .container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

        /* ===== Header / Nav ===== */
        .header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            background: rgba(255,255,255,0.95); backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(0,0,0,0.04);
        }
        .header-inner {
            display: flex; align-items: center; justify-content: space-between;
            height: var(--header-h); max-width: var(--max-width); margin: 0 auto; padding: 0 24px;
        }
        .logo {
            display: flex; align-items: center; gap: 10px;
            font-size: 1.5rem; font-weight: 800; color: var(--primary);
            letter-spacing: -0.5px;
        }
        .logo i { font-size: 1.8rem; color: var(--secondary); }
        .logo:hover { color: var(--primary-dark); }
        .header-nav {
            display: flex; align-items: center; gap: 6px;
            background: var(--bg-alt); padding: 4px; border-radius: 40px;
            border: 1px solid var(--border);
        }
        .header-nav a {
            display: flex; align-items: center; gap: 6px;
            padding: 8px 20px; border-radius: 30px;
            font-size: 0.9rem; font-weight: 500; color: var(--text-light);
            transition: var(--transition); white-space: nowrap;
        }
        .header-nav a i { font-size: 0.85rem; }
        .header-nav a:hover { color: var(--primary); background: rgba(37,99,235,0.06); }
        .header-nav a.active {
            background: var(--primary); color: #fff;
            box-shadow: 0 4px 12px rgba(37,99,235,0.25);
        }
        .header-nav a.active:hover { background: var(--primary-dark); color: #fff; }
        .header-cta {
            display: flex; align-items: center; gap: 12px;
        }
        .header-cta .search-btn {
            width: 40px; height: 40px; border-radius: 50%;
            border: 1px solid var(--border); background: var(--bg);
            color: var(--text-light); cursor: pointer;
            display: flex; align-items: center; justify-content: center;
            transition: var(--transition);
        }
        .header-cta .search-btn:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
        .header-cta .btn-primary {
            padding: 8px 22px; border-radius: 30px; font-size: 0.9rem; font-weight: 600;
        }
        .mobile-toggle { display: none; background: none; border: none; font-size: 1.5rem; color: var(--text); cursor: pointer; padding: 4px; }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 12px 28px; border-radius: 40px; font-weight: 600;
            font-size: 0.95rem; border: none; cursor: pointer;
            transition: var(--transition); text-decoration: none;
        }
        .btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 16px rgba(37,99,235,0.25); }
        .btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(37,99,235,0.35); color: #fff; }
        .btn-secondary { background: var(--secondary); color: #fff; box-shadow: 0 4px 16px rgba(245,158,11,0.25); }
        .btn-secondary:hover { background: var(--secondary-dark); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(245,158,11,0.35); color: #fff; }
        .btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
        .btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
        .btn-sm { padding: 8px 18px; font-size: 0.85rem; }

        /* ===== Badge / Tag ===== */
        .badge {
            display: inline-block; padding: 4px 14px; border-radius: 30px;
            font-size: 0.78rem; font-weight: 600; letter-spacing: 0.3px;
            background: var(--primary-bg); color: var(--primary);
        }
        .badge-warning { background: #fef3c7; color: #b45309; }
        .badge-success { background: #d1fae5; color: #047857; }
        .tag {
            display: inline-block; padding: 3px 12px; border-radius: 20px;
            font-size: 0.75rem; font-weight: 500; background: var(--bg-alt);
            color: var(--text-light); border: 1px solid var(--border);
            transition: var(--transition);
        }
        .tag:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-bg); }

        /* ===== Page Banner ===== */
        .page-banner {
            padding: 140px 0 60px; margin-top: var(--header-h);
            background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #0f172a 100%);
            position: relative; overflow: hidden;
        }
        .page-banner::before {
            content: ''; position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.15; mix-blend-mode: overlay;
        }
        .page-banner .container { position: relative; z-index: 2; }
        .page-banner h1 {
            color: #fff; font-size: 2.2rem; max-width: 800px; margin-bottom: 12px;
        }
        .page-banner .meta {
            display: flex; align-items: center; gap: 20px; flex-wrap: wrap;
            color: rgba(255,255,255,0.75); font-size: 0.9rem;
        }
        .page-banner .meta i { margin-right: 4px; }
        .page-banner .meta .badge { background: rgba(255,255,255,0.15); color: #fff; }

        /* ===== Article Content ===== */
        .article-section {
            padding: 60px 0 80px; background: var(--bg);
        }
        .article-layout {
            display: grid; grid-template-columns: 1fr 320px; gap: 48px;
        }
        .article-main .content-body {
            background: var(--bg-card); border-radius: var(--radius);
            padding: 40px; border: 1px solid var(--border);
            box-shadow: var(--shadow);
        }
        .content-body h2 { font-size: 1.6rem; margin: 32px 0 16px; color: var(--text); }
        .content-body h3 { font-size: 1.25rem; margin: 24px 0 12px; color: var(--text); }
        .content-body p { margin-bottom: 1.2rem; line-height: 1.8; color: var(--text-light); }
        .content-body ul, .content-body ol { margin: 16px 0 20px; padding-left: 24px; }
        .content-body ul li { list-style: disc; margin-bottom: 8px; color: var(--text-light); }
        .content-body ol li { list-style: decimal; margin-bottom: 8px; color: var(--text-light); }
        .content-body img { margin: 24px 0; border-radius: var(--radius-sm); box-shadow: var(--shadow); }
        .content-body blockquote {
            border-left: 4px solid var(--primary); padding: 16px 24px;
            margin: 24px 0; background: var(--primary-bg); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-light); font-style: italic;
        }
        .content-body a { color: var(--primary); text-decoration: underline; }
        .content-body .tag { text-decoration: none; margin: 2px; }

        .article-sidebar .sidebar-card {
            background: var(--bg-card); border-radius: var(--radius);
            padding: 28px; border: 1px solid var(--border);
            box-shadow: var(--shadow); margin-bottom: 24px;
        }
        .sidebar-card h3 { font-size: 1.1rem; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 2px solid var(--primary); }
        .sidebar-card ul li { margin-bottom: 12px; }
        .sidebar-card ul li a {
            display: flex; align-items: center; gap: 10px;
            color: var(--text-light); font-size: 0.92rem;
        }
        .sidebar-card ul li a:hover { color: var(--primary); }
        .sidebar-card ul li a i { color: var(--primary); font-size: 0.8rem; width: 16px; }
        .sidebar-cta { text-align: center; }
        .sidebar-cta .btn { width: 100%; justify-content: center; }

        /* ===== Related Posts ===== */
        .related-section {
            padding: 60px 0; background: var(--bg-alt);
        }
        .related-section .section-title { text-align: center; margin-bottom: 40px; }
        .related-grid {
            display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
        }
        .related-card {
            background: var(--bg-card); border-radius: var(--radius);
            border: 1px solid var(--border); overflow: hidden;
            transition: var(--transition); box-shadow: var(--shadow);
        }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
        .related-card .card-img {
            width: 100%; height: 180px; object-fit: cover;
        }
        .related-card .card-body { padding: 20px; }
        .related-card .card-body h4 { font-size: 1rem; margin-bottom: 8px; }
        .related-card .card-body h4 a { color: var(--text); }
        .related-card .card-body h4 a:hover { color: var(--primary); }
        .related-card .card-body p { font-size: 0.88rem; color: var(--text-muted); margin-bottom: 0; }
        .related-card .card-meta { display: flex; align-items: center; gap: 12px; margin-top: 12px; font-size: 0.8rem; color: var(--text-muted); }

        /* ===== Not Found ===== */
        .not-found { text-align: center; padding: 80px 20px; }
        .not-found i { font-size: 4rem; color: var(--text-muted); margin-bottom: 24px; }
        .not-found h2 { font-size: 1.8rem; margin-bottom: 16px; }
        .not-found p { color: var(--text-light); margin-bottom: 24px; }

        /* ===== Footer ===== */
        .footer {
            background: #0f172a; color: rgba(255,255,255,0.7); padding: 60px 0 0;
        }
        .footer-grid {
            display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px;
            padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand .logo { color: #fff; margin-bottom: 16px; }
        .footer-brand .logo i { color: var(--secondary); }
        .footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.55); line-height: 1.7; max-width: 360px; }
        .footer-col h4 { color: #fff; font-size: 1rem; margin-bottom: 20px; font-weight: 600; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a { color: rgba(255,255,255,0.55); font-size: 0.9rem; transition: var(--transition); }
        .footer-col ul li a:hover { color: var(--primary-light); padding-left: 4px; }
        .footer-social { display: flex; gap: 12px; margin-top: 8px; }
        .footer-social a {
            width: 40px; height: 40px; border-radius: 50%;
            background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.6);
            display: flex; align-items: center; justify-content: center;
            font-size: 1.1rem; transition: var(--transition);
        }
        .footer-social a:hover { background: var(--primary); color: #fff; transform: translateY(-3px); }
        .footer-bottom {
            display: flex; align-items: center; justify-content: space-between;
            padding: 20px 0; font-size: 0.85rem; color: rgba(255,255,255,0.4);
            flex-wrap: wrap; gap: 12px;
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--primary-light); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            :root { --header-h: 60px; }
            h1 { font-size: 1.6rem; }
            h2 { font-size: 1.4rem; }
            .header-nav { display: none; }
            .header-nav.mobile-open { display: flex; flex-direction: column; position: absolute; top: var(--header-h); left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--border); padding: 16px; border-radius: 0 0 var(--radius) var(--radius); box-shadow: var(--shadow-lg); gap: 4px; }
            .header-nav.mobile-open a { width: 100%; justify-content: center; padding: 12px; }
            .mobile-toggle { display: block; }
            .header-cta .btn-primary { display: none; }
            .page-banner { padding: 110px 0 40px; }
            .page-banner h1 { font-size: 1.5rem; }
            .article-main .content-body { padding: 24px; }
            .related-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .page-banner .meta { gap: 12px; font-size: 0.82rem; }
            .article-main .content-body { padding: 16px; }
            .sidebar-card { padding: 20px; }
        }

        /* ===== Utility ===== */
        .text-center { text-align: center; }
        .mt-8 { margin-top: 8px; }
        .mt-16 { margin-top: 16px; }
        .mt-24 { margin-top: 24px; }
        .mb-16 { margin-bottom: 16px; }
        .gap-8 { gap: 8px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .section-title { font-size: 1.8rem; font-weight: 700; margin-bottom: 12px; }
        .section-subtitle { color: var(--text-muted); font-size: 1.05rem; max-width: 600px; margin: 0 auto 40px; text-align: center; }
        .breadcrumb {
            display: flex; align-items: center; gap: 8px;
            font-size: 0.85rem; color: var(--text-muted); margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .breadcrumb a { color: var(--text-muted); }
        .breadcrumb a:hover { color: var(--primary); }
        .breadcrumb i { font-size: 0.7rem; color: var(--text-muted); }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a56db;
            --primary-dark: #0f3a8e;
            --primary-light: #3b82f6;
            --primary-gradient: linear-gradient(135deg, #1a56db 0%, #0f3a8e 100%);
            --secondary: #f59e0b;
            --secondary-light: #fbbf24;
            --accent: #10b981;
            --bg-dark: #0f172a;
            --bg-mid: #1e293b;
            --bg-light: #f1f5f9;
            --bg-white: #ffffff;
            --text-dark: #0f172a;
            --text-body: #334155;
            --text-light: #64748b;
            --text-white: #ffffff;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.12);
            --radius: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --radius-xs: 4px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --max-width: 1200px;
            --header-top-height: 56px;
            --nav-height: 52px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-white);
            min-height: 100vh;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        a:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
            border-radius: var(--radius-xs);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-dark);
            font-weight: 700;
            line-height: 1.3;
        }
        p {
            margin-bottom: 1rem;
        }
        p:last-child {
            margin-bottom: 0;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Header 双层导航 ===== */
        .header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
            border-bottom: 1px solid var(--border);
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-top-height);
            padding: 0 24px;
            max-width: var(--max-width);
            margin: 0 auto;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary-dark);
            letter-spacing: -0.5px;
        }
        .header-logo i {
            font-size: 1.6rem;
            color: var(--primary);
            transition: var(--transition);
        }
        .header-logo:hover i {
            transform: scale(1.08) rotate(-4deg);
        }
        .header-logo span {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .header-search {
            position: relative;
            display: flex;
            align-items: center;
        }
        .header-search input {
            width: 200px;
            padding: 8px 36px 8px 16px;
            border: 1px solid var(--border);
            border-radius: 24px;
            background: var(--bg-light);
            font-size: 0.875rem;
            color: var(--text-body);
            outline: none;
            transition: var(--transition);
        }
        .header-search input:focus {
            border-color: var(--primary-light);
            background: var(--bg-white);
            box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.1);
            width: 260px;
        }
        .header-search input::placeholder {
            color: var(--text-light);
        }
        .header-search button {
            position: absolute;
            right: 8px;
            background: none;
            border: none;
            color: var(--text-light);
            cursor: pointer;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .header-search button:hover {
            color: var(--primary);
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            background: var(--primary-gradient);
            color: var(--text-white);
            border-radius: 24px;
            font-size: 0.875rem;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 2px 8px rgba(26, 86, 219, 0.3);
        }
        .header-cta:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(26, 86, 219, 0.4);
            color: var(--text-white);
        }
        .header-cta:active {
            transform: translateY(0);
        }

        /* 导航栏 - 频道Tabs */
        .header-nav-wrap {
            background: var(--bg-dark);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: var(--nav-height);
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .header-nav::-webkit-scrollbar {
            display: none;
        }
        .header-nav a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 20px;
            font-size: 0.9rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.7);
            border-radius: 24px;
            white-space: nowrap;
            transition: var(--transition);
            position: relative;
        }
        .header-nav a i {
            font-size: 0.9rem;
        }
        .header-nav a:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.1);
        }
        .header-nav a.active {
            color: var(--text-white);
            background: var(--primary);
            box-shadow: 0 2px 12px rgba(26, 86, 219, 0.4);
        }
        .header-nav a.active:hover {
            background: var(--primary-dark);
        }

        /* 移动端菜单按钮（桌面隐藏） */
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--text-dark);
            cursor: pointer;
            padding: 4px;
        }

        /* ===== Hero 区块 ===== */
        .hero {
            position: relative;
            min-height: 460px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 80px 24px 60px;
            background: var(--bg-dark) url('/assets/images/backpic/back-1.png') no-repeat center center / cover;
            isolation: isolate;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 58, 142, 0.85) 0%, rgba(15, 23, 42, 0.75) 100%);
            z-index: 1;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--bg-white) 0%, transparent 100%);
            z-index: 2;
        }
        .hero-content {
            position: relative;
            z-index: 3;
            max-width: 800px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 24px;
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--secondary-light);
            margin-bottom: 20px;
            letter-spacing: 0.3px;
        }
        .hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -1px;
            line-height: 1.2;
        }
        .hero h1 span {
            background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 640px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }
        .hero-actions .btn-primary {
            padding: 14px 36px;
            background: var(--secondary);
            color: var(--text-dark);
            font-weight: 700;
            border-radius: 28px;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(245, 158, 11, 0.4);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .hero-actions .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(245, 158, 11, 0.5);
            background: #e69009;
            color: var(--text-dark);
        }
        .hero-actions .btn-outline {
            padding: 14px 36px;
            background: transparent;
            color: var(--text-white);
            font-weight: 600;
            border-radius: 28px;
            font-size: 1rem;
            border: 2px solid rgba(255, 255, 255, 0.3);
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .hero-actions .btn-outline:hover {
            border-color: var(--text-white);
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-white);
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-light);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-dark h2,
        .section-dark h3 {
            color: var(--text-white);
        }
        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 48px;
        }
        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }
        .section-header p {
            font-size: 1.05rem;
            color: var(--text-light);
        }
        .section-dark .section-header p {
            color: rgba(255, 255, 255, 0.65);
        }
        .section-header .subtitle {
            display: inline-block;
            padding: 4px 14px;
            background: rgba(26, 86, 219, 0.1);
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }
        .section-dark .section-header .subtitle {
            background: rgba(255, 255, 255, 0.1);
            color: var(--secondary-light);
        }

        /* ===== 卡片网格 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .card-grid.cols-2 {
            grid-template-columns: repeat(2, 1fr);
        }
        .card-grid.cols-3 {
            grid-template-columns: repeat(3, 1fr);
        }
        .card-grid.cols-4 {
            grid-template-columns: repeat(4, 1fr);
        }
        @media (max-width: 1024px) {
            .card-grid.cols-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .card-grid.cols-3 {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .card-grid.cols-2,
            .card-grid.cols-3,
            .card-grid.cols-4 {
                grid-template-columns: 1fr;
            }
            .card-grid {
                gap: 16px;
            }
        }

        /* ===== 卡片组件 ===== */
        .card {
            background: var(--bg-white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .card-image {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            display: block;
            background: var(--bg-light);
        }
        .card-body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-dark);
        }
        .card-body p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
            flex: 1;
        }
        .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-top: 12px;
        }
        .card-tags .tag {
            padding: 3px 10px;
            background: var(--bg-light);
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--text-light);
        }
        .card-footer-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--primary);
        }
        .card-footer-link i {
            font-size: 0.8rem;
            transition: var(--transition);
        }
        .card-footer-link:hover i {
            transform: translateX(4px);
        }

        /* 深色卡片变体 */
        .card-dark {
            background: var(--bg-mid);
            border-color: rgba(255, 255, 255, 0.08);
        }
        .card-dark .card-body h3 {
            color: var(--text-white);
        }
        .card-dark .card-body p {
            color: rgba(255, 255, 255, 0.65);
        }
        .card-dark .card-tags .tag {
            background: rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.7);
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            justify-content: center;
        }
        .btn-primary {
            background: var(--primary-gradient);
            color: var(--text-white);
            box-shadow: 0 2px 12px rgba(26, 86, 219, 0.3);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(26, 86, 219, 0.4);
            color: var(--text-white);
        }
        .btn-secondary {
            background: var(--secondary);
            color: var(--text-dark);
            box-shadow: 0 2px 12px rgba(245, 158, 11, 0.3);
        }
        .btn-secondary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(245, 158, 11, 0.4);
            color: var(--text-dark);
        }
        .btn-outline-light {
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255, 255, 255, 0.3);
        }
        .btn-outline-light:hover {
            border-color: var(--text-white);
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-white);
        }

        /* ===== 统计数字 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 32px;
            text-align: center;
        }
        .stat-item {
            padding: 24px 16px;
        }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .stat-label {
            font-size: 0.95rem;
            color: var(--text-light);
            font-weight: 500;
        }
        .section-dark .stat-number {
            color: var(--secondary);
        }
        .section-dark .stat-label {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ===== 特色列表（图文交替） ===== */
        .feature-alt {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .feature-alt.reverse {
            direction: rtl;
        }
        .feature-alt.reverse>* {
            direction: ltr;
        }
        .feature-image {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            background: var(--bg-light);
        }
        .feature-image img {
            width: 100%;
            height: 360px;
            object-fit: cover;
            display: block;
        }
        .feature-text h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .feature-text p {
            color: var(--text-light);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .feature-text ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .feature-text ul li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.95rem;
        }
        .feature-text ul li i {
            color: var(--accent);
            margin-top: 3px;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .feature-alt {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .feature-alt.reverse {
                direction: ltr;
            }
            .feature-image img {
                height: 240px;
            }
            .feature-text h3 {
                font-size: 1.35rem;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            cursor: pointer;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
            gap: 16px;
        }
        .faq-question i {
            color: var(--text-light);
            transition: var(--transition);
            font-size: 0.85rem;
            flex-shrink: 0;
        }
        .faq-question.open i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-answer.open {
            display: block;
        }
        .section-dark .faq-item {
            background: var(--bg-mid);
            border-color: rgba(255, 255, 255, 0.08);
        }
        .section-dark .faq-question {
            color: var(--text-white);
        }
        .section-dark .faq-answer {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ===== CTA 区块 ===== */
        .cta-section {
            background: var(--primary-gradient);
            padding: 80px 24px;
            text-align: center;
            color: var(--text-white);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') no-repeat center center / cover;
            opacity: 0.08;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto 32px;
        }
        .cta-section .btn {
            background: var(--secondary);
            color: var(--text-dark);
            font-weight: 700;
            padding: 16px 40px;
            font-size: 1.05rem;
            box-shadow: 0 4px 20px rgba(245, 158, 11, 0.4);
        }
        .cta-section .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(245, 158, 11, 0.5);
            background: #e69009;
        }

        /* ===== 文章/资讯列表 ===== */
        .article-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 24px;
        }
        .article-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .article-card .article-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            background: var(--bg-light);
        }
        .article-card .article-body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .article-card .article-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-light);
            margin-bottom: 8px;
        }
        .article-card .article-meta .meta-tag {
            padding: 2px 10px;
            background: rgba(26, 86, 219, 0.08);
            border-radius: 12px;
            color: var(--primary);
            font-weight: 500;
        }
        .article-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-dark);
        }
        .article-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
            flex: 1;
        }
        .article-card .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--primary);
        }
        .article-card .read-more i {
            transition: var(--transition);
        }
        .article-card .read-more:hover i {
            transform: translateX(4px);
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-brand .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .footer-brand .logo i {
            color: var(--primary-light);
            font-size: 1.5rem;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--text-white);
            padding-left: 4px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 8px;
        }
        .footer-social a {
            display: inline-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: 1.1rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: var(--text-white);
            transform: translateY(-2px);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 24px 0;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--text-white);
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== 响应式断点 ===== */
        @media (max-width: 1024px) {
            .hero h1 {
                font-size: 2.6rem;
            }
            .section {
                padding: 60px 0;
            }
            .section-header h2 {
                font-size: 1.8rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .stat-number {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            .header-top {
                padding: 0 16px;
            }
            .header-search input {
                width: 140px;
            }
            .header-search input:focus {
                width: 180px;
            }
            .header-cta span {
                display: none;
            }
            .header-cta {
                padding: 8px 14px;
            }
            .header-nav {
                padding: 0 16px;
                gap: 2px;
            }
            .header-nav a {
                padding: 6px 14px;
                font-size: 0.82rem;
                gap: 6px;
            }
            .header-nav a i {
                font-size: 0.8rem;
            }
            .hero {
                min-height: 360px;
                padding: 60px 16px 48px;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-outline {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
            .section {
                padding: 48px 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .card-body {
                padding: 16px 18px 20px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-number {
                font-size: 1.9rem;
            }
            .stat-item {
                padding: 16px 8px;
            }
            .cta-section {
                padding: 56px 16px;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .article-list {
                grid-template-columns: 1fr;
            }
            .faq-question {
                padding: 14px 18px;
                font-size: 0.92rem;
            }
            .faq-answer {
                padding: 0 18px 14px;
                font-size: 0.88rem;
            }
        }

        @media (max-width: 520px) {
            .header-search {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .header-nav a {
                padding: 6px 10px;
                font-size: 0.75rem;
                gap: 4px;
            }
            .header-nav a i {
                font-size: 0.7rem;
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero p {
                font-size: 0.9rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-outline {
                width: 100%;
                max-width: 280px;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-number {
                font-size: 1.6rem;
            }
            .stat-label {
                font-size: 0.8rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 辅助 ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .gap-8 {
            gap: 8px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .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;
        }