/* roulang page: index */
:root {
            --primary: #0f2b46;
            --primary-light: #1a3e61;
            --accent: #f5a623;
            --accent-hover: #e0930f;
            --teal: #17c3b2;
            --bg-body: #f7f9fc;
            --bg-white: #ffffff;
            --text-main: #1a2b3c;
            --text-weak: #6b7a8d;
            --border-color: #e6ecf2;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 10px rgba(15, 43, 70, 0.06);
            --shadow-md: 0 8px 28px rgba(15, 43, 70, 0.10);
            --shadow-lg: 0 18px 44px rgba(15, 43, 70, 0.16);
            --font-base: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: var(--font-base);
            background: var(--bg-body);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.25s, background 0.25s, box-shadow 0.25s, transform 0.25s;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            border: none;
            background: none;
            font-family: inherit;
        }
        input,
        textarea {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== 导航 ===== */
        .site-header {
            background: rgba(15, 43, 70, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 4px 24px rgba(15, 43, 70, 0.28);
        }
        .site-header .navbar {
            padding-top: 10px;
            padding-bottom: 10px;
        }
        .site-header .navbar-brand {
            font-size: 1.35rem;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 9px;
            letter-spacing: 0.02em;
        }
        .site-header .navbar-brand i {
            color: var(--accent);
            font-size: 1.3rem;
            background: rgba(245, 166, 35, 0.14);
            border-radius: 10px;
            padding: 6px;
        }
        .site-header .navbar-nav .nav-link {
            color: rgba(255, 255, 255, 0.78);
            font-weight: 500;
            padding: 0.7rem 1.1rem;
            border-radius: 8px;
            transition: all 0.3s;
            font-size: 0.95rem;
        }
        .site-header .navbar-nav .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }
        .site-header .navbar-nav .nav-link.active {
            color: var(--accent);
            background: rgba(245, 166, 35, 0.13);
            font-weight: 700;
        }
        .header-search {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 30px;
            padding: 5px 8px 5px 16px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: border-color 0.3s, background 0.3s;
        }
        .header-search:focus-within {
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.15);
        }
        .header-search i {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
        }
        .header-search input {
            border: none;
            background: transparent;
            color: #fff;
            outline: none;
            width: 140px;
            font-size: 0.88rem;
            padding: 5px 8px;
        }
        .header-search input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            border-radius: 30px;
            padding: 8px 22px;
            font-weight: 700;
            font-size: 0.9rem;
            transition: all 0.3s;
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .btn-accent:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(245, 166, 35, 0.38);
            color: #fff;
        }
        .btn-outline-light {
            border: 1px solid rgba(255, 255, 255, 0.4);
            color: #fff;
            border-radius: 30px;
            padding: 8px 18px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all 0.3s;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .btn-outline-light:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(245, 166, 35, 0.08);
        }
        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: 10px;
            padding: 8px 12px;
            color: #fff;
            font-size: 1.1rem;
        }
        .navbar-toggler:focus {
            box-shadow: none;
            border-color: var(--accent);
        }

        /* ===== Hero ===== */
        .hero-section {
            background: linear-gradient(135deg, #0f2b46 0%, #1a3e61 55%, #0f2b46 100%);
            position: relative;
            overflow: hidden;
            min-height: 580px;
            display: flex;
            align-items: center;
        }
        .hero-section .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            z-index: 1;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 43, 70, 0.9) 0%, rgba(26, 62, 97, 0.72) 50%, rgba(15, 43, 70, 0.55) 100%);
            z-index: 2;
        }
        .hero-section .container {
            position: relative;
            z-index: 3;
            padding-top: 80px;
            padding-bottom: 80px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(245, 166, 35, 0.16);
            border: 1px solid rgba(245, 166, 35, 0.4);
            color: #ffd48a;
            font-size: 0.85rem;
            padding: 6px 18px;
            border-radius: 30px;
            letter-spacing: 0.06em;
            margin-bottom: 22px;
        }
        .hero-badge i {
            font-size: 0.75rem;
        }
        .hero-title {
            font-size: 3.2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.18;
            letter-spacing: -0.02em;
            margin-bottom: 18px;
        }
        .hero-title span {
            color: var(--accent);
            position: relative;
        }
        .hero-desc {
            font-size: 1.12rem;
            color: rgba(255, 255, 255, 0.78);
            max-width: 580px;
            margin-top: 0;
            margin-bottom: 32px;
        }
        .hero-btns {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .hero-btn-primary {
            background: var(--accent);
            color: #fff;
            border-radius: 30px;
            padding: 14px 32px;
            font-weight: 700;
            font-size: 1rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all 0.3s;
            box-shadow: 0 8px 28px rgba(245, 166, 35, 0.35);
        }
        .hero-btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(245, 166, 35, 0.45);
            color: #fff;
        }
        .hero-btn-ghost {
            border: 1px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            border-radius: 30px;
            padding: 14px 30px;
            font-weight: 600;
            font-size: 1rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all 0.3s;
            background: rgba(255, 255, 255, 0.06);
        }
        .hero-btn-ghost:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(245, 166, 35, 0.1);
            transform: translateY(-3px);
        }
        .hero-meta-row {
            margin-top: 54px;
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }
        .hero-meta-item {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.92rem;
        }
        .hero-meta-item i {
            color: var(--accent);
            font-size: 1.1rem;
        }

        /* ===== 公告条 ===== */
        .notice-bar {
            background: var(--accent);
            color: #fff;
            padding: 12px 0;
            font-size: 0.9rem;
            font-weight: 500;
            overflow: hidden;
            white-space: nowrap;
        }
        .notice-bar .notice-content {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            animation: marquee 22s linear infinite;
        }
        .notice-bar i {
            margin-right: 4px;
        }
        .notice-bar a {
            color: #fff;
            text-decoration: underline;
            font-weight: 700;
        }
        @keyframes marquee {
            0% { transform: translateX(100%); }
            100% { transform: translateX(-100%); }
        }

        /* ===== 特色板块 ===== */
        .section-padding {
            padding: 90px 0;
        }
        .section-eyebrow {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            color: var(--accent);
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 10px;
            letter-spacing: -0.01em;
            line-height: 1.25;
        }
        .section-subtitle {
            color: var(--text-weak);
            font-size: 1.02rem;
            margin-bottom: 48px;
            max-width: 600px;
        }
        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 36px 30px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all 0.35s;
            height: 100%;
            border: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--teal));
            opacity: 0;
            transition: opacity 0.35s;
        }
        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-card .icon {
            width: 66px;
            height: 66px;
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.5rem;
        }
        .feature-card .icon.icon-blue {
            background: rgba(15, 43, 70, 0.1);
            color: var(--primary);
        }
        .feature-card .icon.icon-orange {
            background: rgba(245, 166, 35, 0.15);
            color: var(--accent);
        }
        .feature-card .icon.icon-teal {
            background: rgba(23, 195, 178, 0.15);
            color: var(--teal);
        }
        .feature-card .icon.icon-navy {
            background: rgba(26, 62, 97, 0.12);
            color: var(--primary-light);
        }
        .feature-card h3 {
            font-size: 1.18rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .feature-card p {
            color: var(--text-weak);
            font-size: 0.93rem;
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ===== 分类卡片 ===== */
        .category-section {
            background: #fff;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .category-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all 0.35s;
            background: #fff;
            height: 100%;
            border: 1px solid var(--border-color);
            display: block;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .category-card .img-wrap {
            position: relative;
            overflow: hidden;
            height: 220px;
        }
        .category-card .img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        .category-card:hover .img-wrap img {
            transform: scale(1.06);
        }
        .category-card .img-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 43, 70, 0.55), transparent 65%);
        }
        .category-card .content {
            padding: 28px 28px 30px;
        }
        .category-card .tag {
            display: inline-block;
            background: rgba(245, 166, 35, 0.15);
            color: var(--accent);
            font-size: 0.78rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .category-card h3 {
            font-size: 1.35rem;
            font-weight: 800;
            margin-bottom: 10px;
        }
        .category-card p {
            color: var(--text-weak);
            font-size: 0.93rem;
            margin-bottom: 18px;
            line-height: 1.6;
        }
        .category-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            font-weight: 700;
            font-size: 0.95rem;
            transition: gap 0.3s, color 0.3s;
        }
        .category-link:hover {
            color: var(--accent);
            gap: 13px;
        }

        /* ===== 资讯板块 ===== */
        .news-section {
            background: var(--bg-body);
        }
        .news-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 26px 26px 24px;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s;
            border: 1px solid var(--border-color);
            height: 100%;
            display: flex;
            flex-direction: column;
            position: relative;
            border-left: 4px solid var(--accent);
        }
        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .news-card-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 12px;
            flex-wrap: wrap;
            gap: 6px;
        }
        .news-cat {
            display: inline-block;
            font-size: 0.78rem;
            background: rgba(23, 195, 178, 0.12);
            color: #0a8f8a;
            padding: 3px 12px;
            border-radius: 20px;
            font-weight: 600;
        }
        .news-date {
            color: #9aa7b5;
            font-size: 0.8rem;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .news-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .news-card h3 a {
            transition: color 0.3s;
        }
        .news-card h3 a:hover {
            color: var(--accent);
        }
        .news-card p {
            color: var(--text-weak);
            font-size: 0.9rem;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.6;
        }
        .news-card .read-more {
            margin-top: auto;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            transition: gap 0.3s, color 0.3s;
        }
        .news-card .read-more:hover {
            color: var(--accent);
            gap: 11px;
        }
        .empty-state {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px dashed var(--border-color);
            color: var(--text-weak);
        }
        .empty-state i {
            font-size: 2rem;
            margin-bottom: 12px;
            color: #c3ced8;
        }
        .empty-state p {
            margin: 0;
            font-size: 1rem;
        }
        .btn-more-wrap {
            text-align: center;
            margin-top: 44px;
        }
        .btn-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 1px solid var(--border-color);
            background: #fff;
            border-radius: 30px;
            padding: 12px 28px;
            font-weight: 600;
            color: var(--text-main);
            font-size: 0.95rem;
            transition: all 0.3s;
        }
        .btn-more:hover {
            border-color: var(--accent);
            color: var(--accent);
            box-shadow: var(--shadow-sm);
            transform: translateY(-2px);
        }

        /* ===== 数据区块 ===== */
        .stats-section {
            background: var(--primary);
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
        }
        .stats-section .container {
            position: relative;
            z-index: 2;
            padding-top: 80px;
            padding-bottom: 80px;
        }
        .stat-item {
            text-align: center;
            color: #fff;
            padding: 24px 16px;
        }
        .stat-item .num {
            font-size: 3rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.1;
        }
        .stat-item .label {
            color: rgba(255, 255, 255, 0.68);
            font-size: 0.95rem;
            margin-top: 6px;
        }
        .stat-item .suffix {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--accent);
        }

        /* ===== 热门推荐 ===== */
        .hot-section {
            background: #fff;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .scroll-wrap {
            display: flex;
            gap: 20px;
            overflow-x: auto;
            padding-bottom: 18px;
            scroll-snap-type: x proximity;
            margin-right: -20px;
            padding-right: 20px;
        }
        .scroll-wrap::-webkit-scrollbar {
            height: 6px;
        }
        .scroll-wrap::-webkit-scrollbar-track {
            background: var(--bg-body);
            border-radius: 10px;
        }
        .scroll-wrap::-webkit-scrollbar-thumb {
            background: var(--border-color);
            border-radius: 10px;
        }
        .scroll-card {
            min-width: 280px;
            max-width: 280px;
            scroll-snap-align: start;
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all 0.3s;
            display: block;
        }
        .scroll-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }
        .scroll-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }
        .scroll-card .body {
            padding: 20px;
        }
        .scroll-card .body .hot-tag {
            display: inline-block;
            background: rgba(15, 43, 70, 0.08);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 16px;
            margin-bottom: 10px;
        }
        .scroll-card .body h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .scroll-card .body p {
            color: var(--text-weak);
            font-size: 0.86rem;
            margin-bottom: 0;
        }

        /* ===== 流程 ===== */
        .steps-wrap {
            counter-reset: step;
        }
        .step-item {
            position: relative;
            padding-left: 84px;
            margin-bottom: 34px;
        }
        .step-item:last-child {
            margin-bottom: 0;
        }
        .step-item::before {
            counter-increment: step;
            content: counter(step, decimal-leading-zero);
            position: absolute;
            left: 0;
            top: 0;
            width: 58px;
            height: 58px;
            background: var(--primary);
            color: #fff;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            font-weight: 800;
            box-shadow: 0 8px 22px rgba(15, 43, 70, 0.22);
        }
        .step-item:nth-child(even)::before {
            background: var(--accent);
            box-shadow: 0 8px 22px rgba(245, 166, 35, 0.3);
        }
        .step-item h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .step-item p {
            color: var(--text-weak);
            font-size: 0.95rem;
            margin: 0;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: #fff;
            border-top: 1px solid var(--border-color);
        }
        .accordion-item {
            border: 1px solid var(--border-color) !important;
            border-radius: var(--radius-md) !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: 0 2px 6px rgba(15, 43, 70, 0.03);
        }
        .accordion-button {
            font-weight: 600;
            font-size: 1rem;
            padding: 18px 22px;
            background: #fafbfd;
            color: var(--text-main);
            transition: all 0.3s;
        }
        .accordion-button:not(.collapsed) {
            background: var(--primary);
            color: #fff;
            box-shadow: none;
        }
        .accordion-button:focus {
            box-shadow: none;
            border-color: var(--border-color);
        }
        .accordion-button i {
            color: var(--accent);
            margin-right: 10px;
            font-size: 0.9rem;
        }
        .accordion-button:not(.collapsed) i {
            color: var(--accent);
        }
        .accordion-body {
            color: var(--text-weak);
            font-size: 0.95rem;
            padding: 20px 24px;
            background: #fff;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #0f2b46, #1a3e61);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: 0.1;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            padding-top: 90px;
            padding-bottom: 90px;
            text-align: center;
        }
        .cta-title {
            font-size: 2.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }
        .cta-desc {
            color: rgba(255, 255, 255, 0.8);
            margin: 0 auto 36px;
            max-width: 560px;
            font-size: 1.05rem;
        }
        .cta-btns {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #081a2c;
            color: rgba(255, 255, 255, 0.6);
            padding-top: 36px;
            padding-bottom: 20px;
        }
        .site-footer a {
            color: rgba(255, 255, 255, 0.7);
            transition: color 0.3s;
        }
        .site-footer a:hover {
            color: var(--accent);
        }
        .footer-brand {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-brand i {
            color: var(--accent);
            font-size: 1.2rem;
            background: rgba(245, 166, 35, 0.14);
            border-radius: 8px;
            padding: 5px;
        }
        .footer-desc {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.92rem;
            margin-top: 12px;
            line-height: 1.6;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }
        .footer-links a {
            font-weight: 500;
            font-size: 0.95rem;
        }
        .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            margin-top: 30px;
            font-size: 0.85rem;
            text-align: center;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-tech {
            text-align: right;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-tech i {
            color: var(--thistle, #17c3b2);
            margin-right: 4px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 2.6rem;
            }
            .section-title {
                font-size: 2rem;
            }
            .stat-item .num {
                font-size: 2.4rem;
            }
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 60px 0;
            }
            .hero-section {
                min-height: 480px;
            }
            .hero-title {
                font-size: 2.1rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .header-search {
                display: none;
            }
            .navbar-collapse {
                background: rgba(15, 43, 70, 0.97);
                padding: 16px;
                border-radius: 14px;
                margin-top: 10px;
                border: 1px solid rgba(255, 255, 255, 0.1);
            }
            .site-header .navbar-nav {
                margin-bottom: 8px;
            }
            .stat-item {
                padding: 16px 8px;
            }
            .stat-item .num {
                font-size: 2rem;
            }
            .step-item {
                padding-left: 68px;
            }
            .step-item::before {
                width: 48px;
                height: 48px;
                font-size: 1rem;
                border-radius: 12px;
            }
            .cta-section .container {
                padding-top: 60px;
                padding-bottom: 60px;
            }
            .cta-title {
                font-size: 1.8rem;
            }
            .footer-tech {
                text-align: center;
                margin-top: 12px;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.65rem;
            }
            .hero-badge {
                font-size: 0.75rem;
                padding: 5px 12px;
            }
            .hero-btn-primary,
            .hero-btn-ghost {
                width: 100%;
                justify-content: center;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-subtitle {
                font-size: 0.92rem;
            }
            .category-card .img-wrap {
                height: 180px;
            }
            .news-card {
                padding: 20px;
            }
            .scroll-card {
                min-width: 240px;
                max-width: 240px;
            }
            .step-item {
                padding-left: 0;
                padding-top: 68px;
            }
            .step-item::before {
                top: 0;
            }
            .cta-title {
                font-size: 1.5rem;
            }
            .cta-btns .btn {
                width: 100%;
            }
            .footer-brand {
                justify-content: center;
            }
            .footer-desc {
                text-align: center;
            }
            .footer-links {
                justify-content: center;
            }
            .copyright {
                font-size: 0.8rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #0e1f3c;
            --primary-dark: #091428;
            --primary-light: #1c3a6b;
            --accent: #f6a723;
            --accent-dark: #e09412;
            --bg: #f5f7fb;
            --card-bg: #ffffff;
            --text: #1f2937;
            --muted: #6b7485;
            --border: #e6ebf2;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 10px 30px rgba(14, 31, 60, .08);
            --shadow-hover: 0 16px 40px rgba(14, 31, 60, .14);
            --transition: all .3s ease;
            --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        body {
            margin: 0;
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

        ul,
        ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: linear-gradient(180deg, rgba(14, 31, 60, .98), rgba(14, 31, 60, .94));
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        .site-header .navbar {
            padding: 12px 0;
        }

        .site-header .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-size: 1.25rem;
            font-weight: 800;
            letter-spacing: .5px;
        }

        .site-header .navbar-brand i {
            color: var(--accent);
            font-size: 1.4rem;
        }

        .site-header .navbar-brand:hover {
            color: #fff;
            transform: scale(1.02);
        }

        .site-header .nav-link {
            color: rgba(255, 255, 255, .75);
            font-weight: 500;
            padding: 8px 18px !important;
            border-radius: 30px;
            margin: 0 2px;
            font-size: .95rem;
        }

        .site-header .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, .08);
        }

        .site-header .nav-link.active {
            color: #fff;
            background: rgba(246, 167, 35, .16);
        }

        .site-header .nav-link.active::after {
            content: "";
            display: block;
            width: 18px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            margin: 4px auto 0;
        }

        .header-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: 30px;
            padding: 7px 16px;
            color: rgba(255, 255, 255, .6);
            transition: var(--transition);
        }

        .header-search:focus-within {
            border-color: var(--accent);
            background: rgba(255, 255, 255, .14);
        }

        .header-search input {
            border: none;
            background: transparent;
            color: #fff;
            outline: none;
            width: 130px;
            font-size: .9rem;
        }

        .header-search input::placeholder {
            color: rgba(255, 255, 255, .45);
        }

        .site-header .btn-outline-light {
            border-radius: 30px;
            padding: 7px 20px;
            font-size: .9rem;
            border-color: rgba(255, 255, 255, .4);
        }

        .site-header .btn-outline-light:hover {
            background: rgba(255, 255, 255, .1);
            border-color: #fff;
        }

        .site-header .btn-accent {
            background: var(--accent);
            color: #091428;
            font-weight: 700;
            border: none;
            border-radius: 30px;
            padding: 8px 24px;
            font-size: .9rem;
            transition: var(--transition);
        }

        .site-header .btn-accent:hover {
            background: var(--accent-dark);
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(246, 167, 35, .35);
        }

        .site-header .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, .3);
            color: #fff;
            border-radius: 8px;
            padding: 6px 10px;
            font-size: 1.1rem;
        }

        .site-header .navbar-toggler:focus {
            box-shadow: none;
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            min-height: 400px;
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
            padding: 100px 0 90px;
            color: #fff;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(115deg, rgba(9, 20, 40, .92) 20%, rgba(28, 58, 107, .72) 80%);
        }

        .page-hero .hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(246, 167, 35, .2);
            border: 1px solid rgba(246, 167, 35, .5);
            color: var(--accent);
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 30px;
            font-size: .85rem;
            letter-spacing: .5px;
            margin-bottom: 20px;
        }

        .page-hero h1 {
            font-size: clamp(2rem, 4vw, 3.2rem);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .page-hero .lead-text {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, .82);
            margin-bottom: 24px;
            max-width: 640px;
        }

        .breadcrumb-nav {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            font-size: .9rem;
            color: rgba(255, 255, 255, .65);
        }

        .breadcrumb-nav a {
            color: rgba(255, 255, 255, .75);
        }

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

        .breadcrumb-nav .sep {
            color: rgba(255, 255, 255, .4);
        }

        /* ===== Filter Bar ===== */
        .filter-section {
            position: relative;
            z-index: 10;
            margin-top: -28px;
        }

        .filter-bar {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 14px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
        }

        .filter-bar .filter-label {
            font-weight: 700;
            color: var(--text);
            margin-right: 6px;
            padding-left: 8px;
        }

        .filter-item {
            border: none;
            background: #f0f4f9;
            color: var(--muted);
            padding: 8px 22px;
            border-radius: 30px;
            font-size: .9rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }

        .filter-item:hover {
            background: #e2e9f2;
            color: var(--primary);
        }

        .filter-item.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(14, 31, 60, .22);
        }

        /* ===== Main Layout ===== */
        .main-section {
            padding: 48px 0 24px;
        }

        .content-area {
            padding-bottom: 32px;
        }

        .section-title {
            font-size: 1.6rem;
            font-weight: 800;
            margin-bottom: 6px;
            letter-spacing: -0.3px;
        }

        .section-sub {
            color: var(--muted);
            margin-bottom: 24px;
            font-size: .95rem;
        }

        /* Featured Card */
        .feature-card {
            background: #fff;
            border-radius: calc(var(--radius) + 6px);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            margin-bottom: 30px;
            border: 1px solid var(--border);
        }

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

        .feature-card .feature-thumb {
            position: relative;
            height: 100%;
            min-height: 300px;
            background: #eef2f7;
        }

        .feature-card .feature-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }

        .feature-card .feature-body {
            padding: 34px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .feature-card .feature-tag {
            align-self: flex-start;
            background: rgba(246, 167, 35, .14);
            color: var(--accent-dark);
            font-weight: 700;
            font-size: .78rem;
            padding: 4px 14px;
            border-radius: 30px;
            margin-bottom: 16px;
            letter-spacing: .3px;
        }

        .feature-card h2 {
            font-size: 1.55rem;
            font-weight: 800;
            line-height: 1.35;
            margin-bottom: 14px;
        }

        .feature-card h2 a:hover {
            color: var(--accent-dark);
        }

        .feature-card .feature-summary {
            color: var(--muted);
            margin-bottom: 20px;
            font-size: .98rem;
        }

        .feature-card .feature-meta {
            display: flex;
            gap: 18px;
            color: var(--muted);
            font-size: .88rem;
        }

        .feature-card .feature-meta i {
            margin-right: 6px;
            color: var(--accent);
        }

        /* News Grid */
        .news-item {
            margin-bottom: 24px;
        }

        .news-card {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: 0 4px 16px rgba(14, 31, 60, .04);
            height: 100%;
            transition: var(--transition);
            background: #fff;
        }

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

        .news-card .news-thumb {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #e9edf3;
        }

        .news-card .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }

        .news-card:hover .news-thumb img {
            transform: scale(1.05);
        }

        .news-card .news-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(14, 31, 60, .88);
            color: #fff;
            font-size: .75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 30px;
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
        }

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

        .news-card .news-title {
            font-size: 1.04rem;
            font-weight: 700;
            line-height: 1.45;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card .news-title a:hover {
            color: var(--accent-dark);
        }

        .news-card .news-summary {
            color: var(--muted);
            font-size: .88rem;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
        }

        .news-card .news-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid #f1f4f8;
            padding-top: 12px;
            font-size: .82rem;
            color: var(--muted);
        }

        .news-card .news-meta i {
            margin-right: 4px;
            color: var(--accent);
        }

        /* ===== Sidebar ===== */
        .sidebar-area {
            padding-left: 12px;
        }

        .rank-card,
        .subscribe-card {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            padding: 26px;
            margin-bottom: 24px;
        }

        .rank-card h4 {
            font-size: 1.15rem;
            font-weight: 800;
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .rank-card h4 i {
            color: var(--accent);
        }

        .rank-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid #f1f4f8;
            transition: var(--transition);
        }

        .rank-list li:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .rank-list li:hover a {
            color: var(--accent-dark);
        }

        .rank-num {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 8px;
            background: #eef2f7;
            color: var(--primary);
            font-weight: 800;
            font-size: .85rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-top: 2px;
        }

        .rank-list li:nth-child(1) .rank-num {
            background: #fbe9c8;
            color: #b8750a;
        }

        .rank-list li:nth-child(2) .rank-num {
            background: #e6edf6;
            color: #1c3a6b;
        }

        .rank-list li:nth-child(3) .rank-num {
            background: #f3e3d6;
            color: #a85a2a;
        }

        .rank-list a {
            font-size: .92rem;
            font-weight: 600;
            line-height: 1.5;
            flex: 1;
        }

        .rank-trend {
            color: #e05a5a;
            font-size: .78rem;
            margin-top: 2px;
        }

        .subscribe-card {
            background: linear-gradient(150deg, #0e1f3c, #1c3a6b);
            color: #fff;
            border: none;
        }

        .subscribe-card h5 {
            font-weight: 800;
            font-size: 1.1rem;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .subscribe-card h5 i {
            color: var(--accent);
        }

        .subscribe-card p {
            color: rgba(255, 255, 255, .7);
            font-size: .9rem;
            margin-bottom: 16px;
        }

        .subscribe-card form {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .subscribe-card input {
            border-radius: 30px;
            border: none;
            padding: 11px 18px;
            font-size: .9rem;
            outline: none;
            background: rgba(255, 255, 255, .12);
            color: #fff;
        }

        .subscribe-card input::placeholder {
            color: rgba(255, 255, 255, .5);
        }

        .subscribe-card input:focus {
            background: rgba(255, 255, 255, .18);
            border: 1px solid var(--accent);
        }

        .subscribe-card button {
            background: var(--accent);
            color: #091428;
            border: none;
            font-weight: 700;
            border-radius: 30px;
            padding: 11px 20px;
            font-size: .92rem;
            transition: var(--transition);
        }

        .subscribe-card button:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
        }

        /* ===== Stats Section ===== */
        .stats-section {
            padding: 60px 0;
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .stat-item {
            text-align: center;
            padding: 20px 12px;
        }

        .stat-item .stat-num {
            font-size: 2.3rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            letter-spacing: -0.5px;
        }

        .stat-item .stat-label {
            color: var(--muted);
            font-size: .95rem;
            margin-top: 6px;
            font-weight: 500;
        }

        .stat-item .stat-icon {
            color: var(--accent);
            font-size: 1.4rem;
            margin-bottom: 8px;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 100px 0;
            text-align: center;
            color: #fff;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(9, 20, 40, .88), rgba(28, 58, 107, .78));
        }

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

        .cta-section h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 800;
            margin-bottom: 12px;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, .8);
            margin-bottom: 30px;
        }

        .cta-section .btn-accent {
            background: var(--accent);
            color: #091428;
            font-weight: 700;
            border: none;
            border-radius: 30px;
            padding: 12px 34px;
            font-size: 1rem;
            transition: var(--transition);
            margin: 6px;
        }

        .cta-section .btn-accent:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(246, 167, 35, .35);
        }

        .cta-section .btn-outline-light {
            border-radius: 30px;
            padding: 12px 34px;
            font-size: 1rem;
            border-color: rgba(255, 255, 255, .5);
            margin: 6px;
        }

        .cta-section .btn-outline-light:hover {
            background: rgba(255, 255, 255, .12);
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            padding: 70px 0;
            background: var(--bg);
        }

        .faq-section .section-head {
            text-align: center;
            margin-bottom: 40px;
        }

        .faq-section .section-head h2 {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.3px;
        }

        .faq-section .section-head p {
            color: var(--muted);
            margin-top: 8px;
        }

        .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius) !important;
            margin-bottom: 14px;
            box-shadow: 0 4px 16px rgba(14, 31, 60, .04);
            background: #fff;
            overflow: hidden;
        }

        .accordion-item:last-child {
            margin-bottom: 0;
        }

        .accordion-button {
            font-weight: 700;
            font-size: 1rem;
            color: var(--text);
            padding: 18px 22px;
            background: #fff;
            box-shadow: none;
        }

        .accordion-button:not(.collapsed) {
            background: #f8fafc;
            color: var(--primary);
        }

        .accordion-button:focus {
            box-shadow: none;
            border-color: var(--accent);
        }

        .accordion-body {
            color: var(--muted);
            padding: 0 22px 20px;
            line-height: 1.75;
            font-size: .95rem;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #091428;
            color: rgba(255, 255, 255, .7);
            padding: 56px 0 28px;
            border-top: 4px solid var(--accent);
        }

        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        .site-footer .footer-brand i {
            color: var(--accent);
            font-size: 1.4rem;
        }

        .site-footer .footer-desc {
            font-size: .92rem;
            max-width: 340px;
            color: rgba(255, 255, 255, .6);
            margin-bottom: 0;
        }

        .site-footer .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 8px;
            padding: 0;
        }

        .site-footer .footer-links a {
            color: rgba(255, 255, 255, .7);
            font-size: .92rem;
            padding: 6px 14px;
            border-radius: 20px;
            transition: var(--transition);
        }

        .site-footer .footer-links a:hover {
            color: var(--accent);
            background: rgba(255, 255, 255, .06);
        }

        .site-footer .footer-tech {
            text-align: right;
            font-size: .9rem;
            color: rgba(255, 255, 255, .55);
        }

        .site-footer .footer-tech i {
            color: var(--accent);
            margin-right: 6px;
        }

        .site-footer .copyright {
            border-top: 1px solid rgba(255, 255, 255, .08);
            margin-top: 36px;
            padding-top: 22px;
            text-align: center;
            font-size: .85rem;
            color: rgba(255, 255, 255, .4);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .page-hero {
                min-height: 360px;
                padding: 80px 0;
            }

            .feature-card .feature-body {
                padding: 26px;
            }

            .sidebar-area {
                padding-left: 0;
                margin-top: 10px;
            }
        }

        @media (max-width: 768px) {
            .site-header .navbar-collapse {
                background: rgba(14, 31, 60, .98);
                border-radius: 16px;
                padding: 16px;
                margin-top: 10px;
                border: 1px solid rgba(255, 255, 255, .08);
            }

            .site-header .nav-link {
                padding: 10px 16px !important;
            }

            .header-search {
                width: 100%;
                margin-bottom: 10px;
            }

            .header-search input {
                width: 100%;
            }

            .site-header .btn-outline-light {
                display: none;
            }

            .filter-section {
                margin-top: -16px;
            }

            .filter-bar {
                padding: 12px;
                border-radius: 12px;
            }

            .filter-item {
                padding: 6px 16px;
                font-size: .85rem;
            }

            .feature-card .feature-thumb {
                min-height: 220px;
                height: 220px;
            }

            .feature-card .feature-thumb img {
                position: relative;
            }

            .feature-card .feature-body {
                padding: 24px;
            }

            .feature-card h2 {
                font-size: 1.3rem;
            }

            .sidebar-area {
                margin-top: 10px;
            }

            .stat-item .stat-num {
                font-size: 1.8rem;
            }

            .site-footer .footer-tech {
                text-align: left;
                margin-top: 14px;
            }

            .site-footer .footer-links {
                justify-content: flex-start;
            }
        }

        @media (max-width: 520px) {
            .page-hero {
                min-height: 320px;
                padding: 60px 0;
            }

            .page-hero h1 {
                font-size: 1.7rem;
            }

            .page-hero .lead-text {
                font-size: .98rem;
            }

            .filter-bar {
                gap: 8px;
            }

            .filter-item {
                padding: 6px 12px;
                font-size: .8rem;
            }

            .news-card .news-summary {
                -webkit-line-clamp: 2;
            }

            .rank-card,
            .subscribe-card {
                padding: 20px;
            }

            .section-title {
                font-size: 1.3rem;
            }

            .cta-section {
                padding: 70px 0;
            }

            .cta-section .btn-accent,
            .cta-section .btn-outline-light {
                display: block;
                width: 100%;
                margin: 8px 0;
            }
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
:root {
  --primary: #0b2447;
  --primary-dark: #061a33;
  --primary-light: #1a3b6d;
  --accent: #f5a623;
  --accent-dark: #d98b0f;
  --accent-soft: #fff3e0;
  --bg: #f4f6fb;
  --card: #ffffff;
  --text: #16213e;
  --text-light: #5a6b8c;
  --border: #e4eaf2;
  --radius-lg: 20px;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 12px rgba(11, 36, 71, .06);
  --shadow: 0 10px 36px rgba(11, 36, 71, .10);
  --shadow-lg: 0 22px 60px rgba(11, 36, 71, .16);
  --transition: all .25s ease;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

/* ===== 基础 Reset ===== */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }
img { max-width: 100%; height: auto; display: block; }
button, input, select, textarea { font-family: inherit; }
ul, ol { padding-left: 0; }

/* ===== 通用容器 ===== */
.container { max-width: 1200px; }

/* ===== 按钮体系 ===== */
.btn {
  border-radius: 50px;
  padding: 9px 22px;
  font-weight: 600;
  font-size: .92rem;
  border: 2px solid transparent;
  transition: var(--transition);
}
.btn-accent {
  background: var(--accent);
  color: var(--primary-dark);
  border-color: var(--accent);
}
.btn-accent:hover, .btn-accent:focus {
  background: #ffb844;
  border-color: #ffb844;
  color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(245, 166, 35, .35);
}
.btn-outline-light {
  border-color: rgba(255,255,255,.4);
  color: #fff;
  background: transparent;
}
.btn-outline-light:hover, .btn-outline-light:focus {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(255,255,255,.06);
  transform: translateY(-1px);
}
.btn-primary-custom {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-primary-custom:hover {
  background: var(--primary-light);
  border-color: var(--primary-light);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(11, 36, 71, .22);
}
.btn:focus-visible {
  outline: 3px solid rgba(245, 166, 35, .5);
  outline-offset: 2px;
}

/* ===== 顶部导航 ===== */
.site-header {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  box-shadow: 0 4px 24px rgba(6, 26, 51, .22);
  position: sticky;
  top: 0;
  z-index: 1000;
}
.site-header .navbar { padding: 14px 0; }
.navbar-brand {
  font-size: 1.42rem;
  font-weight: 900;
  color: #fff !important;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  letter-spacing: .2px;
}
.navbar-brand i {
  color: var(--accent);
  font-size: 1.55rem;
  filter: drop-shadow(0 0 8px rgba(245,166,35,.4));
}
.navbar-brand:hover i { transform: rotate(-8deg) scale(1.1); }
.navbar-nav { gap: 2px; }
.navbar-nav .nav-link {
  color: rgba(255,255,255,.78);
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: .94rem;
}
.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: #fff;
  background: rgba(255,255,255,.12);
}
.navbar-nav .nav-link.active { color: var(--accent); font-weight: 700; }
.navbar-toggler {
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 10px;
  padding: 8px 12px;
  color: #fff;
  background: rgba(255,255,255,.05);
}
.navbar-toggler:focus { box-shadow: none; border-color: var(--accent); }
.header-search {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 50px;
  padding: 7px 16px;
  gap: 8px;
  transition: var(--transition);
}
.header-search:focus-within {
  border-color: var(--accent);
  background: rgba(255,255,255,.16);
  box-shadow: 0 0 0 3px rgba(245,166,35,.12);
}
.header-search i { color: rgba(255,255,255,.65); font-size: .82rem; }
.header-search input {
  background: transparent;
  border: none;
  outline: none;
  color: #fff;
  width: 130px;
  font-size: .88rem;
}
.header-search input::placeholder { color: rgba(255,255,255,.5); }

/* ===== 文章横幅 Banner ===== */
.article-banner {
  background-size: cover;
  background-position: center;
  padding: 76px 0 88px;
  position: relative;
  color: #fff;
}
.article-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(6,26,51,.95) 0%, rgba(11,36,71,.85) 60%, rgba(26,59,109,.72) 100%);
}
.article-banner::after {
  content: "";
  position: absolute;
  right: -100px;
  top: -100px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245,166,35,.22) 0%, transparent 65%);
}
.article-banner .container { position: relative; z-index: 2; }

.breadcrumb-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: .86rem;
  margin-bottom: 20px;
  color: rgba(255,255,255,.6);
}
.breadcrumb-nav a { color: rgba(255,255,255,.7); }
.breadcrumb-nav a:hover { color: var(--accent); }
.breadcrumb-nav i { font-size: .68rem; color: rgba(255,255,255,.35); }
.breadcrumb-nav span.current { color: var(--accent); font-weight: 500; }

.article-banner h1 {
  font-size: 2.15rem;
  font-weight: 900;
  line-height: 1.35;
  margin-bottom: 18px;
  max-width: 880px;
  letter-spacing: .5px;
}
.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px 22px;
  font-size: .88rem;
  color: rgba(255,255,255,.75);
}
.article-meta span { display: inline-flex; align-items: center; gap: 7px; }
.article-meta i { color: var(--accent); }
.badge-cat {
  background: rgba(245,166,35,.18);
  border: 1px solid rgba(245,166,35,.4);
  color: var(--accent);
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 50px;
  font-size: .82rem;
}

/* ===== 文章主页区 ===== */
.article-wrap { padding: 48px 0 24px; }
.article-card {
  background: var(--card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  padding: 44px;
  margin-bottom: 24px;
}
.article-lead {
  font-size: 1.08rem;
  color: var(--text-light);
  border-left: 4px solid var(--accent);
  padding-left: 18px;
  margin-bottom: 28px;
  font-style: normal;
  line-height: 1.8;
  background: var(--accent-soft);
  padding: 14px 20px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.article-body { font-size: 1.02rem; line-height: 1.9; color: #33425e; }
.article-body h1, .article-body h2, .article-body h3, .article-body h4, .article-body h5 {
  color: var(--primary);
  font-weight: 700;
  margin-top: 34px;
  margin-bottom: 16px;
  line-height: 1.4;
}
.article-body h2 { font-size: 1.45rem; padding-left: 14px; border-left: 4px solid var(--accent); }
.article-body h3 { font-size: 1.22rem; }
.article-body p { margin-bottom: 20px; }
.article-body img {
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  margin: 24px 0;
  width: 100%;
  object-fit: cover;
}
.article-body blockquote {
  border-left: 4px solid var(--accent);
  background: var(--accent-soft);
  padding: 18px 22px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 28px 0;
  color: #7a6035;
  font-style: italic;
}
.article-body ul, .article-body ol {
  padding-left: 1.25em;
  margin-bottom: 22px;
}
.article-body li { margin-bottom: 8px; }
.article-body a { color: var(--accent-dark); text-decoration: underline; text-underline-offset: 3px; }
.article-body table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: .94rem; }
.article-body table th, .article-body table td { border: 1px solid var(--border); padding: 10px 14px; text-align: left; }
.article-body table th { background: var(--primary); color: #fff; font-weight: 600; }
.article-body code {
  background: #eef1f6;
  border-radius: 6px;
  padding: 2px 8px;
  font-size: .88em;
  color: var(--primary);
}
.article-body pre {
  background: var(--primary-dark);
  color: #e2e8f0;
  border-radius: var(--radius-sm);
  padding: 20px;
  overflow-x: auto;
  margin: 24px 0;
  line-height: 1.6;
  font-size: .9rem;
}
.article-body pre code { background: transparent; color: inherit; padding: 0; }

/* ===== 文章标签与分享 ===== */
.article-tags {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 36px;
  padding-top: 26px;
  border-top: 1px solid var(--border);
}
.article-tags i { color: var(--accent); font-size: 1rem; }
.tag-pill {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: 5px 16px;
  font-size: .82rem;
  color: var(--text-light);
  transition: var(--transition);
}
.tag-pill:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  transform: translateY(-2px);
}
.article-share {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
  padding-top: 20px;
  border-top: 1px dashed var(--border);
}
.share-label { font-size: .88rem; color: var(--text-light); margin-right: 4px; }
.share-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: .92rem;
  transition: var(--transition);
  border: 1px solid var(--border);
  color: var(--text-light);
  background: #fff;
}
.share-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(11,36,71,.12);
}
.share-btn.wechat:hover { background: #07c160; color: #fff; border-color: #07c160; }
.share-btn.weibo:hover { background: #e6162d; color: #fff; border-color: #e6162d; }
.share-btn.qq:hover { background: #12b7f5; color: #fff; border-color: #12b7f5; }

/* ===== 内容未找到 ===== */
.not-found-box {
  text-align: center;
  padding: 80px 30px;
}
.not-found-box i {
  font-size: 4rem;
  color: var(--border);
  margin-bottom: 20px;
  display: block;
}
.not-found-box h2 { font-size: 1.6rem; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
.not-found-box p { color: var(--text-light); font-size: .95rem; margin-bottom: 24px; }

/* ===== 侧边栏 ===== */
.article-sidebar { position: sticky; top: 100px; }
.side-widget {
  background: var(--card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  padding: 26px;
  margin-bottom: 20px;
  transition: var(--transition);
}
.side-widget:hover { box-shadow: var(--shadow); }
.side-widget-title {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--border);
}
.side-widget-title i { color: var(--accent); }

.hot-list { list-style: none; margin: 0; }
.hot-list li { padding: 12px 0; border-bottom: 1px dashed var(--border); }
.hot-list li:last-child { border-bottom: none; }
.hot-list a {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  color: var(--text);
  font-size: .9rem;
  line-height: 1.55;
}
.hot-list a:hover { color: var(--primary); }
.hot-list .hot-num {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: #e9eef7;
  color: var(--text-light);
  font-weight: 700;
  font-size: .8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-style: normal;
}
.hot-list .rank-1 { background: var(--accent); color: #fff; }
.hot-list .rank-2 { background: #94a3b8; color: #fff; }
.hot-list .rank-3 { background: #cf7d4c; color: #fff; }
.hot-list .hot-text { display: block; min-width: 0; }
.hot-list .hot-text strong {
  display: block;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  display: -webkit-box;
  font-size: .9rem;
  color: var(--text);
  margin-bottom: 2px;
}
.hot-list .hot-text em {
  font-style: normal;
  font-size: .76rem;
  color: var(--text-light);
}

.cat-list { list-style: none; margin: 0; }
.cat-list li { margin-bottom: 10px; }
.cat-list li:last-child { margin-bottom: 0; }
.cat-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--bg);
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  color: var(--text);
  font-weight: 500;
  font-size: .92rem;
  transition: var(--transition);
}
.cat-list a:hover {
  background: var(--accent-soft);
  border-color: rgba(245,166,35,.3);
  color: var(--accent-dark);
  transform: translateX(4px);
}
.cat-list a i { color: var(--accent); margin-right: 8px; }
.cat-list a span { font-size: .78rem; color: var(--text-light); background: #fff; padding: 2px 10px; border-radius: 50px; border: 1px solid var(--border); }

.side-cta {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
  color: #fff;
  border: none;
  position: relative;
  overflow: hidden;
}
.side-cta::after {
  content: "\f05b0";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  right: -20px;
  bottom: -30px;
  font-size: 6rem;
  color: rgba(255,255,255,.06);
}
.side-cta h4 { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; color: #fff; }
.side-cta p { font-size: .88rem; color: rgba(255,255,255,.75); margin-bottom: 20px; line-height: 1.7; }
.side-cta .btn-accent { width: 100%; }
.side-cta i.fas { position: relative; z-index: 1; }

/* ===== 通用板块标题 ===== */
.section-head {
  text-align: center;
  margin-bottom: 40px;
}
.section-head h2 {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--primary);
  letter-spacing: .5px;
  margin-bottom: 6px;
}
.section-head p { color: var(--text-light); font-size: .95rem; }
.section-head::after {
  content: "";
  display: block;
  width: 56px;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), #ffce7a);
  border-radius: 4px;
  margin: 16px auto 0;
}

/* ===== 相关阅读 ===== */
.related-section { padding: 56px 0 24px; }
.related-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  height: 100%;
  display: block;
  color: var(--text);
}
.related-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  color: var(--text);
}
.related-card .cover {
  position: relative;
  overflow: hidden;
  height: 160px;
  background: var(--primary-light);
}
.related-card .cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .45s ease;
}
.related-card:hover .cover img { transform: scale(1.06); }
.related-card .cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(6,26,51,.15), transparent 60%);
}
.related-card .info { padding: 18px 20px 22px; }
.related-card .info h4 {
  font-size: .98rem;
  font-weight: 600;
  line-height: 1.6;
  margin-bottom: 10px;
  color: var(--text);
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  transition: var(--transition);
}
.related-card:hover .info h4 { color: var(--accent-dark); }
.related-card .meta {
  font-size: .8rem;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 6px;
}
.related-card .meta i { color: var(--accent); font-size: .75rem; }
.related-card .dot { color: var(--border); }

/* ===== FAQ 板块 ===== */
.faq-section { padding: 48px 0 24px; }
.faq-list {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, 1fr);
}
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 24px;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
.faq-item:hover {
  border-color: rgba(245,166,35,.4);
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}
.faq-item h4 {
  font-size: .98rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.faq-item h4 i { color: var(--accent); font-size: .9rem; }
.faq-item p { font-size: .88rem; color: var(--text-light); line-height: 1.75; margin-bottom: 0; }

/* ===== CTA 横幅 ===== */
.cta-section { padding: 48px 0 16px; }
.cta-band {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 65%, var(--primary-light) 100%);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  position: relative;
  overflow: hidden;
  text-align: center;
  color: #fff;
  box-shadow: var(--shadow-lg);
}
.cta-band::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -60px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(245,166,35,.16);
}
.cta-band::after {
  content: "";
  position: absolute;
  bottom: -100px;
  left: 8%;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.08);
}
.cta-band h2 {
  font-size: 1.8rem;
  font-weight: 900;
  margin-bottom: 10px;
  position: relative;
  z-index: 1;
}
.cta-band p { font-size: 1rem; color: rgba(255,255,255,.75); margin-bottom: 24px; position: relative; z-index: 1; }
.cta-band .btn-accent { padding: 12px 36px; font-size: 1rem; position: relative; z-index: 1; }

/* ===== 页脚 ===== */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,.75);
  padding: 52px 0 24px;
  margin-top: 56px;
  position: relative;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary));
}
.footer-brand {
  font-size: 1.35rem;
  font-weight: 900;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.footer-brand i { color: var(--accent); font-size: 1.45rem; }
.footer-desc { font-size: .88rem; color: rgba(255,255,255,.55); line-height: 1.75; max-width: 320px; }
.footer-links {
  list-style: none;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px 28px;
  margin: 16px 0;
}
.footer-links a {
  color: rgba(255,255,255,.65);
  font-size: .9rem;
  transition: var(--transition);
}
.footer-links a:hover { color: var(--accent); }
.footer-tech {
  text-align: right;
  font-size: .84rem;
  color: rgba(255,255,255,.5);
}
.footer-tech i { color: var(--accent); margin-right: 6px; }
.copyright {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 20px;
  margin-top: 32px;
  text-align: center;
  font-size: .82rem;
  color: rgba(255,255,255,.4);
}

/* ===== 响应式断点 ===== */
@media (max-width: 1199.98px) {
  .article-card { padding: 36px; }
  .article-banner h1 { font-size: 1.9rem; }
  .faq-list { grid-template-columns: repeat(3, 1fr); gap: 14px; }
}
@media (max-width: 991.98px) {
  .navbar-collapse {
    background: var(--primary);
    border-radius: var(--radius-sm);
    padding: 16px;
    margin-top: 14px;
    border: 1px solid rgba(255,255,255,.1);
    box-shadow: 0 16px 32px rgba(6,26,51,.2);
  }
  .navbar-nav { gap: 6px; }
  .navbar-nav .nav-link { padding: 10px 14px; }
  .header-search { margin-top: 10px; width: 100%; }
  .header-search input { width: 100%; }
  .article-sidebar { position: static; margin-top: 24px; }
  .article-banner { padding: 56px 0 64px; }
  .article-banner h1 { font-size: 1.7rem; }
  .faq-list { grid-template-columns: 1fr; }
  .related-section .col-md-6 { margin-bottom: 18px; }
  .cta-band { padding: 44px 28px; }
  .footer-tech { text-align: left; margin-top: 12px; }
  .footer-links { justify-content: flex-start; }
}
@media (max-width: 767.98px) {
  .article-card { padding: 24px; }
  .article-banner h1 { font-size: 1.45rem; }
  .article-meta { gap: 10px 16px; font-size: .82rem; }
  .article-banner { padding: 44px 0 50px; }
  .section-head h2 { font-size: 1.5rem; }
  .cta-band { padding: 36px 22px; }
  .cta-band h2 { font-size: 1.45rem; }
  .cta-band .btn-accent { width: 100%; }
  .article-body { font-size: .98rem; line-height: 1.85; }
  .related-card .cover { height: 140px; }
  .footer-brand { font-size: 1.2rem; }
  .hot-list a { font-size: .86rem; }
}
@media (max-width: 575.98px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .article-wrap { padding-top: 32px; }
  .article-card { padding: 18px; border-radius: 14px; }
  .article-banner h1 { font-size: 1.3rem; }
  .article-meta { flex-direction: column; align-items: flex-start; gap: 8px; }
  .breadcrumb-nav { font-size: .8rem; }
  .section-head { margin-bottom: 30px; }
  .related-section { padding-top: 36px; }
  .faq-item { padding: 20px 18px; }
  .cta-band { border-radius: 14px; }
  .cta-band p { font-size: .92rem; }
  .footer-links { flex-direction: column; gap: 12px; }
}

/* roulang page: category2 */
:root {
            --primary: #1e3a5f;
            --primary-dark: #12283e;
            --primary-light: #2d5a8e;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --accent-light: #fef3c7;
            --bg-body: #f5f7fa;
            --bg-white: #ffffff;
            --bg-dark-blue: #10233a;
            --text-main: #1e293b;
            --text-body: #334155;
            --text-muted: #64748b;
            --border-color: #e2e8f0;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --shadow-xs: 0 2px 6px rgba(30, 58, 95, 0.05);
            --shadow-sm: 0 4px 16px rgba(30, 58, 95, 0.07);
            --shadow-md: 0 10px 30px rgba(30, 58, 95, 0.1);
            --shadow-lg: 0 20px 48px rgba(30, 58, 95, 0.14);
            --transition: all 0.3s ease;
        }

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

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background-color: var(--bg-body);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 2px 12px rgba(30, 58, 95, 0.05);
        }

        .site-header .navbar {
            padding: 14px 0;
        }

        .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary) !important;
            letter-spacing: 0.5px;
        }

        .navbar-brand i {
            width: 38px;
            height: 38px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            border-radius: 10px;
            font-size: 1rem;
            box-shadow: 0 4px 12px rgba(30, 58, 95, 0.25);
        }

        .navbar-nav .nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body);
            padding: 8px 16px !important;
            border-radius: 8px;
            margin: 0 2px;
            transition: var(--transition);
        }

        .navbar-nav .nav-link:hover {
            color: var(--primary);
            background: rgba(45, 90, 142, 0.08);
        }

        .navbar-nav .nav-link.active {
            color: var(--primary);
            font-weight: 700;
            background: rgba(45, 90, 142, 0.1);
        }

        .navbar-toggler {
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 6px 12px;
            font-size: 1.2rem;
            color: var(--primary);
            box-shadow: none !important;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(45, 90, 142, 0.2) !important;
        }

        .header-search {
            display: flex;
            align-items: center;
            background: var(--bg-body);
            border: 1px solid var(--border-color);
            border-radius: 24px;
            padding: 6px 16px;
            gap: 8px;
            width: 180px;
            transition: var(--transition);
        }

        .header-search:focus-within {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(45, 90, 142, 0.1);
            background: #fff;
        }

        .header-search i {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .header-search input {
            flex: 1;
            background: transparent;
            border: none;
            font-size: 0.85rem;
            color: var(--text-main);
            min-width: 0;
        }

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

        .btn-accent {
            background: var(--accent);
            color: #fff;
            border-radius: 24px;
            padding: 8px 22px;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
            transition: var(--transition);
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(245, 158, 11, 0.4);
        }

        .btn-outline-light {
            border: 1px solid rgba(255, 255, 255, 0.6);
            color: #fff;
            border-radius: 24px;
            padding: 8px 20px;
            font-weight: 500;
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            border-color: #fff;
        }

        /* ===== Hero Banner ===== */
        .guide-hero {
            position: relative;
            background: linear-gradient(135deg, rgba(18, 40, 62, 0.95), rgba(30, 58, 95, 0.85)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            padding: 110px 0 90px;
            color: #fff;
            overflow: hidden;
        }

        .guide-hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -5%;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.2), transparent 70%);
            pointer-events: none;
        }

        .guide-hero::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -10%;
            width: 380px;
            height: 380px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(45, 90, 142, 0.3), transparent 70%);
            pointer-events: none;
        }

        .guide-hero-content {
            position: relative;
            z-index: 2;
            max-width: 760px;
        }

        .hero-breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            background: rgba(255, 255, 255, 0.12);
            border-radius: 24px;
            padding: 6px 18px;
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }

        .hero-breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            transition: var(--transition);
        }

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

        .hero-breadcrumb i {
            font-size: 0.7rem;
            opacity: 0.7;
        }

        .hero-title {
            font-size: 3.3rem;
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: 1px;
            margin-bottom: 20px;
        }

        .hero-title span {
            color: var(--accent);
        }

        .hero-subtitle {
            font-size: 1.15rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 48px;
        }

        .hero-actions .btn-hero-primary {
            background: var(--accent);
            color: #fff;
            border-radius: 28px;
            padding: 14px 34px;
            font-weight: 600;
            font-size: 1rem;
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.35);
            transition: var(--transition);
        }

        .hero-actions .btn-hero-primary:hover {
            background: var(--accent-dark);
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(245, 158, 11, 0.45);
            color: #fff;
        }

        .hero-actions .btn-hero-outline {
            border: 1.5px solid rgba(255, 255, 255, 0.7);
            color: #fff;
            border-radius: 28px;
            padding: 14px 34px;
            font-weight: 500;
            font-size: 1rem;
            transition: var(--transition);
        }

        .hero-actions .btn-hero-outline:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: #fff;
            transform: translateY(-3px);
            color: #fff;
        }

        .hero-stats {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.2);
        }

        .hero-stat-item {
            display: flex;
            flex-direction: column;
        }

        .hero-stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }

        .hero-stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 4px;
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 80px 0;
        }

        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 56px;
        }

        .section-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent-dark);
            border-radius: 20px;
            padding: 5px 18px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.8;
        }

        /* ===== 快速指南 ===== */
        .guide-quick {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
        }

        .quick-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 32px 26px;
            height: 100%;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .quick-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--primary-light));
            opacity: 0;
            transition: var(--transition);
        }

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

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

        .quick-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 20px;
            background: rgba(45, 90, 142, 0.1);
            color: var(--primary);
            transition: var(--transition);
        }

        .quick-card:hover .quick-icon {
            background: var(--primary);
            color: #fff;
            transform: scale(1.05);
        }

        .quick-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .quick-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .quick-link {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--primary-light);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

        .quick-link:hover {
            color: var(--accent-dark);
            gap: 10px;
        }

        /* ===== 图文教程 ===== */
        .guide-tutorials {
            background: var(--bg-body);
        }

        .tutorial-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            overflow: hidden;
            height: 100%;
            transition: var(--transition);
        }

        .tutorial-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-8px);
        }

        .tutorial-img {
            position: relative;
            overflow: hidden;
            height: 210px;
        }

        .tutorial-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

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

        .tutorial-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(30, 58, 95, 0.9);
            color: #fff;
            font-size: 0.75rem;
            border-radius: 16px;
            padding: 4px 14px;
            backdrop-filter: blur(4px);
        }

        .tutorial-body {
            padding: 26px 24px 28px;
        }

        .tutorial-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 12px;
        }

        .tutorial-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .tutorial-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .tutorial-body p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 18px;
        }

        .tutorial-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary-light);
            transition: var(--transition);
        }

        .tutorial-link:hover {
            gap: 12px;
            color: var(--accent-dark);
        }

        /* ===== 流程 ===== */
        .process-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .process-section::before {
            content: '';
            position: absolute;
            top: -20%;
            right: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(245, 158, 11, 0.12);
            pointer-events: none;
        }

        .process-section .section-title {
            color: #fff;
        }

        .process-section .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }

        .process-section .section-tag {
            background: rgba(245, 158, 11, 0.2);
            color: var(--accent);
        }

        .process-step {
            text-align: center;
            padding: 32px 20px;
            position: relative;
        }

        .process-step:not(:last-child)::after {
            content: '\f054';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            top: 50%;
            right: -20px;
            transform: translateY(-50%);
            color: var(--accent);
            opacity: 0.6;
            font-size: 0.9rem;
            z-index: 2;
        }

        .step-number {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: rgba(245, 158, 11, 0.2);
            border: 2px solid var(--accent);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent);
            margin-bottom: 20px;
            transition: var(--transition);
        }

        .process-step:hover .step-number {
            background: var(--accent);
            color: var(--primary-dark);
            transform: scale(1.08);
        }

        .process-step h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .process-step p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.7;
        }

        /* ===== 进阶技巧 ===== */
        .tips-section {
            background: var(--bg-white);
        }

        .tips-card {
            background: var(--bg-dark-blue);
            border-radius: var(--radius-lg);
            padding: 48px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .tips-card::before {
            content: '';
            position: absolute;
            bottom: -40%;
            right: -10%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(245, 158, 11, 0.1);
        }

        .tips-card h3 {
            font-size: 1.6rem;
            font-weight: 800;
            margin-bottom: 30px;
            position: relative;
            z-index: 2;
        }

        .tips-list {
            list-style: none;
            padding: 0;
            margin: 0;
            position: relative;
            z-index: 2;
        }

        .tip-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 14px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

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

        .tip-item i {
            width: 32px;
            height: 32px;
            flex-shrink: 0;
            border-radius: 8px;
            background: rgba(245, 158, 11, 0.2);
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            margin-top: 3px;
        }

        .tip-item strong {
            display: block;
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 4px;
        }

        .tip-item span {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-body);
        }

        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(45, 90, 142, 0.3);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            padding: 22px 26px;
            display: flex;
            align-items: center;
            gap: 16px;
            cursor: pointer;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-main);
            transition: var(--transition);
        }

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

        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            flex-shrink: 0;
            border-radius: 50%;
            background: rgba(45, 90, 142, 0.1);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            transition: var(--transition);
        }

        .faq-item.active .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }

        .faq-answer-inner {
            padding: 0 26px 24px 70px;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-white);
        }

        .cta-box {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: var(--radius-lg);
            padding: 56px 60px;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .cta-box::before {
            content: '\f059';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            right: 30px;
            bottom: 20px;
            font-size: 120px;
            color: rgba(255, 255, 255, 0.08);
        }

        .cta-box h2 {
            color: #fff;
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 16px;
            position: relative;
            z-index: 2;
        }

        .cta-box p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.05rem;
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.8;
            position: relative;
            z-index: 2;
        }

        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }

        .btn-cta-accent {
            background: var(--accent);
            color: #fff;
            border-radius: 28px;
            padding: 14px 36px;
            font-weight: 600;
            font-size: 1rem;
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.35);
            transition: var(--transition);
        }

        .btn-cta-accent:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-3px);
        }

        .btn-cta-outline {
            border: 1.5px solid rgba(255, 255, 255, 0.6);
            color: #fff;
            border-radius: 28px;
            padding: 14px 36px;
            font-weight: 500;
            font-size: 1rem;
            transition: var(--transition);
        }

        .btn-cta-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-3px);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 30px;
        }

        .footer-brand {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .footer-brand i {
            width: 36px;
            height: 36px;
            background: var(--accent);
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            color: #fff;
        }

        .footer-desc {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.8;
            max-width: 260px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.95rem;
            transition: var(--transition);
        }

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

        .footer-tech {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            text-align: right;
            display: flex;
            align-items: center;
            gap: 8px;
            justify-content: flex-end;
        }

        .footer-tech i {
            color: var(--accent);
        }

        .copyright {
            text-align: center;
            padding-top: 36px;
            margin-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 2.6rem;
            }

            .guide-hero {
                padding: 90px 0 70px;
            }

            .section {
                padding: 64px 0;
            }

            .process-step:not(:last-child)::after {
                display: none;
            }

            .cta-box {
                padding: 48px 36px;
            }
        }

        @media (max-width: 768px) {
            .site-header .navbar {
                padding: 12px 0;
            }

            .header-search {
                width: 100%;
                margin-bottom: 10px;
            }

            .header-search+.btn {
                width: 100%;
            }

            .navbar-nav {
                padding: 10px 0;
            }

            .navbar-nav .nav-link {
                padding: 10px 12px !important;
            }

            .hero-title {
                font-size: 2.1rem;
            }

            .hero-subtitle {
                font-size: 1rem;
            }

            .guide-hero {
                padding: 70px 0 50px;
            }

            .hero-stats {
                gap: 24px;
            }

            .hero-stat-num {
                font-size: 1.6rem;
            }

            .section-title {
                font-size: 1.7rem;
            }

            .section-head {
                margin-bottom: 40px;
            }

            .process-step {
                padding: 20px 12px;
            }

            .tips-card {
                padding: 32px 24px;
            }

            .cta-box {
                padding: 40px 24px;
            }

            .cta-box h2 {
                font-size: 1.6rem;
            }

            .footer-links {
                margin: 20px 0;
                justify-content: flex-start;
            }

            .footer-tech {
                justify-content: flex-start;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }

            .hero-title {
                font-size: 1.7rem;
            }

            .hero-actions .btn-hero-primary,
            .hero-actions .btn-hero-outline {
                width: 100%;
                text-align: center;
            }

            .hero-stats {
                flex-direction: column;
                gap: 16px;
            }

            .hero-stat-item {
                flex-direction: row;
                align-items: baseline;
                gap: 10px;
            }

            .section {
                padding: 52px 0;
            }

            .section-title {
                font-size: 1.5rem;
            }

            .tutorial-img {
                height: 170px;
            }

            .tips-card h3 {
                font-size: 1.3rem;
            }

            .faq-question {
                padding: 18px 16px;
                font-size: 0.95rem;
            }

            .faq-answer-inner {
                padding: 0 16px 20px 58px;
                font-size: 0.88rem;
            }

            .cta-box {
                padding: 32px 20px;
            }

            .cta-box h2 {
                font-size: 1.4rem;
            }

            .cta-buttons .btn-cta-accent,
            .cta-buttons .btn-cta-outline {
                width: 100%;
                text-align: center;
            }

            .footer-tech {
                margin-top: 10px;
            }
        }