/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0a66e0;
            --primary-dark: #084aa5;
            --primary-light: #e8f1fe;
            --accent: #ff6a00;
            --accent-dark: #e55d00;
            --accent-light: #fff3e8;
            --bg: #f5f7fb;
            --bg-deep: #0b1526;
            --white: #ffffff;
            --text: #17233d;
            --text-muted: #6b7a90;
            --border: #e2e9f2;
            --radius: 18px;
            --radius-sm: 12px;
            --radius-xs: 8px;
            --shadow: 0 12px 30px rgba(23, 35, 61, .08);
            --shadow-hover: 0 18px 44px rgba(23, 35, 61, .15);
            --space: 90px;
            --transition: all .3s ease;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::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, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
        }
        img {
            max-width: 100%;
            display: block;
            object-fit: cover;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4 {
            line-height: 1.3;
            font-weight: 700;
        }
        p {
            margin-bottom: 0;
        }

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: var(--transition);
            border: 2px solid transparent;
            min-height: 48px;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 8px 22px rgba(255, 106, 0, .35);
        }
        .btn-primary:hover {
            background: var(--accent-dark);
            transform: translateY(-3px);
            box-shadow: 0 14px 30px rgba(255, 106, 0, .4);
        }
        .btn-outline {
            background: transparent;
            border-color: rgba(255, 255, 255, .85);
            color: #fff;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, .15);
            border-color: #fff;
            transform: translateY(-3px);
        }
        .btn-blue {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 22px rgba(10, 102, 224, .3);
        }
        .btn-blue:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
        }
        .btn-lg {
            padding: 18px 44px;
            font-size: 17px;
        }
        .btn-sm {
            padding: 9px 22px;
            font-size: 14px;
            min-height: 40px;
        }
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(10, 102, 224, .4);
            outline-offset: 2px;
        }

        /* ===== 徽章 / 标签 ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 16px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
            background: var(--primary-light);
            color: var(--primary);
        }
        .badge-accent {
            background: var(--accent-light);
            color: var(--accent);
        }
        .badge-dark {
            background: rgba(255, 255, 255, .18);
            color: #fff;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, .9);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(226, 233, 242, .8);
            box-shadow: 0 2px 20px rgba(0, 0, 0, .04);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text);
            white-space: nowrap;
        }
        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            font-size: 20px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .main-nav .nav-link {
            padding: 10px 22px;
            border-radius: 40px;
            font-weight: 500;
            color: var(--text-muted);
            position: relative;
            transition: var(--transition);
        }
        .main-nav .nav-link:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .main-nav .nav-link.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 20px rgba(10, 102, 224, .28);
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .nav-right .btn {
            padding: 10px 26px;
            min-height: 42px;
            font-size: 14px;
        }

        /* ===== 移动端底部 Tab ===== */
        .mobile-tab {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background: #fff;
            border-top: 1px solid var(--border);
            border-radius: 20px 20px 0 0;
            box-shadow: 0 -6px 30px rgba(0, 0, 0, .06);
            z-index: 99;
            padding: 6px 0 calc(6px + env(safe-area-inset-bottom));
        }
        .mobile-tab .tab-item {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 8px 4px;
            color: var(--text-muted);
            font-size: 12px;
            border-radius: 12px;
            transition: var(--transition);
            min-width: 0;
        }
        .mobile-tab .tab-item i {
            font-size: 20px;
            margin-bottom: 2px;
        }
        .mobile-tab .tab-item.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            padding: 120px 0 100px;
            background: linear-gradient(135deg, rgba(8, 26, 61, .95) 0%, rgba(10, 102, 224, .82) 60%, rgba(255, 106, 0, .55) 100%),
                url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: #fff;
            min-height: 620px;
            display: flex;
            align-items: center;
        }
        .hero-content {
            max-width: 720px;
        }
        .hero .badge {
            background: rgba(255, 255, 255, .18);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, .25);
        }
        .hero-title {
            font-size: clamp(36px, 5vw, 58px);
            font-weight: 800;
            line-height: 1.15;
            margin: 20px 0 20px;
            letter-spacing: 1px;
        }
        .hero-title .gradient-text {
            background: linear-gradient(120deg, #ffd48a, #ff6a00);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-subtitle {
            font-size: 18px;
            color: rgba(255, 255, 255, .88);
            line-height: 1.8;
            margin-bottom: 34px;
            max-width: 560px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 56px;
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 36px;
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, .2);
        }
        .stat-item .stat-num {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.2;
            display: flex;
            align-items: baseline;
        }
        .stat-item .stat-num em {
            font-size: 16px;
            margin-left: 4px;
            font-style: normal;
            opacity: .8;
        }
        .stat-item .stat-label {
            font-size: 14px;
            opacity: .8;
            margin-top: 4px;
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: var(--space) 0;
        }
        .section-alt {
            background: var(--white);
        }
        .section-hero-pattern {
            background: linear-gradient(180deg, var(--bg) 0%, var(--white) 50%, var(--bg) 100%);
        }
        .section-head {
            max-width: 720px;
            margin-bottom: 48px;
        }
        .section-head.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }
        .section-title {
            font-size: clamp(28px, 3.6vw, 40px);
            margin-top: 12px;
        }
        .section-subtitle {
            margin-top: 12px;
            color: var(--text-muted);
            font-size: 16px;
        }
        .section-head .badge {
            margin-bottom: 4px;
        }

        /* ===== 分类入口 ===== */
        .cat-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }
        .cat-card {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            background: var(--white);
            box-shadow: var(--shadow);
            transition: var(--transition);
            display: flex;
            min-height: 280px;
        }
        .cat-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
        }
        .cat-card-img {
            width: 44%;
            overflow: hidden;
            min-height: 100%;
        }
        .cat-card-img img {
            width: 100%;
            height: 100%;
            transition: transform .5s ease;
        }
        .cat-card:hover .cat-card-img img {
            transform: scale(1.06);
        }
        .cat-card-body {
            flex: 1;
            padding: 36px 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .cat-card-body h3 {
            font-size: 24px;
            margin: 12px 0 10px;
        }
        .cat-card-body p {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
        }
        .cat-link {
            margin-top: 20px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            color: var(--primary);
        }
        .cat-link i {
            transition: transform .3s ease;
        }
        .cat-card:hover .cat-link i {
            transform: translateX(6px);
        }

        /* ===== 最新资讯列表 ===== */
        .news-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .news-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 30px;
            transition: var(--transition);
        }
        .news-item:hover {
            border-color: transparent;
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 12px;
            color: var(--text-muted);
            font-size: 13px;
        }
        .news-title {
            font-size: 19px;
            line-height: 1.5;
            margin-bottom: 8px;
        }
        .news-title a:hover {
            color: var(--primary);
        }
        .news-summary {
            color: var(--text-muted);
            font-size: 15px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .empty-tip {
            grid-column: 1 / -1;
            text-align: center;
            background: var(--white);
            border: 1px dashed var(--border);
            border-radius: var(--radius);
            padding: 60px 20px;
            color: var(--text-muted);
            font-size: 16px;
        }

        /* ===== 特色卡片 ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .feature-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 42px 34px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid transparent;
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            margin-bottom: 22px;
            transition: var(--transition);
        }
        .feature-card:hover .feature-icon {
            background: var(--primary);
            color: #fff;
            transform: scale(-1) rotate(10deg);
        }
        .feature-card h3 {
            font-size: 22px;
            margin-bottom: 12px;
        }
        .feature-card p {
            color: var(--text-muted);
            font-size: 15px;
        }

        /* ===== 图文说明 ===== */
        .split-box {
            display: grid;
            grid-template-columns: 1.05fr 1fr;
            gap: 52px;
            align-items: center;
        }
        .split-text .badge {
            margin-bottom: 14px;
        }
        .split-text h2 {
            font-size: clamp(28px, 3.6vw, 40px);
            line-height: 1.3;
            margin-bottom: 18px;
        }
        .split-text p {
            color: var(--text-muted);
            font-size: 16px;
            margin-bottom: 16px;
        }
        .split-list {
            margin-top: 16px;
            display: grid;
            gap: 14px;
        }
        .split-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }
        .split-list li i {
            margin-top: 5px;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            flex-shrink: 0;
        }
        .split-img {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            position: relative;
            min-height: 360px;
        }
        .split-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .split-img .floating-data {
            position: absolute;
            bottom: 24px;
            left: 24px;
            background: rgba(255, 255, 255, .95);
            border-radius: 14px;
            padding: 18px 24px;
            box-shadow: var(--shadow);
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .split-img .floating-data .fd-icon {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: var(--accent-light);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
        }
        .split-img .floating-data strong {
            font-size: 24px;
            line-height: 1;
        }
        .split-img .floating-data span {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===== 流程步骤 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            counter-reset: step;
        }
        .step-item {
            background: var(--white);
            border-radius: var(--radius);
            padding: 34px 26px;
            text-align: center;
            box-shadow: var(--shadow);
            position: relative;
            transition: var(--transition);
        }
        .step-item:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .step-num {
            width: 60px;
            height: 60px;
            margin: 0 auto 20px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            font-size: 22px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 10px 24px rgba(10, 102, 224, .3);
        }
        .step-item h3 {
            font-size: 18px;
            margin-bottom: 10px;
        }
        .step-item p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== 数据面板 ===== */
        .data-band {
            background: linear-gradient(135deg, var(--bg-deep), #0f2c52);
            color: #fff;
            padding: 64px 0;
            border-radius: var(--radius);
            position: relative;
            overflow: hidden;
        }
        .data-band::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(255, 106, 0, .25);
            filter: blur(10px);
        }
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
            position: relative;
            z-index: 1;
        }
        .data-grid .item strong {
            font-size: 38px;
            font-weight: 800;
            display: block;
            line-height: 1.2;
            background: linear-gradient(120deg, #fff, #ffb066);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .data-grid .item span {
            font-size: 14px;
            opacity: .8;
            margin-top: 6px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: grid;
            gap: 14px;
        }
        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item summary {
            padding: 22px 28px;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            display: flex;
            align-items: center;
            gap: 14px;
            list-style: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary i {
            color: var(--primary);
            margin-left: auto;
            transition: transform .3s ease;
            font-size: 18px;
        }
        .faq-item[open] summary i {
            transform: rotate(135deg);
        }
        .faq-item[open] {
            border-color: rgba(10, 102, 224, .3);
            box-shadow: var(--shadow);
        }
        .faq-item .faq-answer {
            padding: 0 28px 24px 52px;
            color: var(--text-muted);
            font-size: 15px;
        }

        /* ===== CTA ===== */
        .cta-box {
            background: linear-gradient(135deg, var(--primary), #0c4a9e 50%, var(--accent));
            border-radius: calc(var(--radius) * 1.4);
            padding: 70px 56px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            right: 0;
            bottom: 0;
            width: 240px;
            height: 240px;
            background: url('/assets/images/backpic/back-2.png') center/cover;
            opacity: .2;
            border-radius: 50%;
        }
        .cta-box h2 {
            font-size: clamp(26px, 3vw, 36px);
            margin-bottom: 12px;
        }
        .cta-box p {
            opacity: .9;
            max-width: 480px;
        }
        .cta-box .btn {
            flex-shrink: 0;
            position: relative;
            z-index: 1;
            background: #fff;
            color: var(--primary);
            box-shadow: 0 10px 30px rgba(0, 0, 0, .2);
        }
        .cta-box .btn:hover {
            transform: translateY(-3px) scale(1.02);
            color: var(--accent);
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-deep);
            color: #c3cede;
            padding-top: 70px;
            margin-top: var(--space);
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
        }
        .footer-brand .footer-logo i {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: #fff;
        }
        .footer-brand p {
            margin-top: 18px;
            font-size: 14px;
            line-height: 1.8;
            max-width: 380px;
        }
        .footer-links h4 {
            color: #fff;
            font-size: 16px;
            margin-bottom: 18px;
        }
        .footer-links ul {
            display: grid;
            gap: 10px;
        }
        .footer-links a {
            color: #c3cede;
            font-size: 14px;
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-bottom {
            padding: 22px 0;
            text-align: center;
            font-size: 13px;
            color: #8b9bb0;
        }

        /* ===== 辅助类 ===== */
        .text-center {
            text-align: center;
        }
        .mt-0 {
            margin-top: 0;
        }
        .mb-0 {
            margin-bottom: 0;
        }

        /* ===== 响应式 ===== */
        @media screen and (max-width: 1024px) {
            :root {
                --space: 64px;
            }
            .hero {
                padding: 100px 0 80px;
                min-height: 560px;
            }
            .cat-grid,
            .feature-grid {
                gap: 24px;
            }
            .cat-card-body {
                padding: 28px 24px;
            }
            .cat-card-body h3 {
                font-size: 20px;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 22px;
            }
            .data-grid {
                gap: 20px;
            }
            .data-grid .item strong {
                font-size: 30px;
            }
            .split-box {
                gap: 36px;
            }
        }

        @media screen and (max-width: 768px) {
            .site-header .container {
                height: 70px;
            }
            .site-header .main-nav,
            .site-header .nav-right {
                display: none;
            }
            .mobile-tab {
                display: flex;
            }
            .body-pad {
                padding-bottom: 80px;
            }
            .hero {
                padding: 80px 0 60px;
                min-height: auto;
                background: linear-gradient(160deg, rgba(8, 26, 61, .95), rgba(10, 102, 224, .85)), url('/assets/images/backpic/back-1.png') center/cover;
            }
            .hero-title {
                font-size: 34px;
            }
            .hero-subtitle {
                font-size: 16px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .hero-stats {
                gap: 24px;
            }
            .stat-item {
                flex: 1;
                min-width: 120px;
            }
            .cat-grid,
            .news-list,
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .cat-card {
                flex-direction: column;
                min-height: auto;
            }
            .cat-card-img {
                width: 100%;
                height: 220px;
            }
            .cat-card-body {
                padding: 28px 24px;
            }
            .split-box {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .split-img {
                min-height: 300px;
                order: -1;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }
            .cta-box {
                flex-direction: column;
                text-align: center;
                padding: 48px 28px;
            }
            .cta-box p {
                margin: 0 auto;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 32px;
                padding-bottom: 30px;
            }
        }

        @media screen and (max-width: 520px) {
            .container {
                padding: 0 18px;
            }
            .hero {
                padding: 70px 0 50px;
            }
            .hero-title {
                font-size: 28px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .btn-lg {
                padding: 16px 32px;
                font-size: 16px;
            }
            .section-head {
                margin-bottom: 34px;
            }
            .section-title {
                font-size: 26px;
            }
            .news-item {
                padding: 22px;
            }
            .feature-card {
                padding: 32px 24px;
            }
            .cta-box {
                padding: 40px 20px;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .mobile-tab .tab-item i {
                font-size: 18px;
            }
            .faq-item summary {
                padding: 18px 20px;
                font-size: 15px;
            }
            .faq-item .faq-answer {
                padding: 0 20px 20px 40px;
                font-size: 14px;
            }
            .data-grid .item strong {
                font-size: 26px;
            }
            .stat-item .stat-num {
                font-size: 26px;
            }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #2563eb;
            --primary-dark: #1e40af;
            --primary-light: #dbeafe;
            --accent: #f97316;
            --accent-light: #fff7ed;
            --dark: #0b1526;
            --dark-soft: #111e33;
            --bg: #f6f8fc;
            --bg-white: #ffffff;
            --text: #1e293b;
            --text-soft: #475569;
            --text-muted: #94a3b8;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 10px rgba(15, 23, 42, .06);
            --shadow-md: 0 8px 30px rgba(15, 23, 42, .08);
            --shadow-lg: 0 20px 50px rgba(15, 23, 42, .12);
            --gradient: linear-gradient(135deg, #1e40af 0%, #2563eb 100%);
            --space: 80px;
            --transition: all .3s ease;
        }

        /* ===== Reset / Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        img { max-width: 100%; display: block; }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        ul, ol { list-style: none; }
        button, input, select, textarea { font-family: inherit; font-size: inherit; }
        .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }

        /* ===== 顶部导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            height: 72px;
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: .5px;
            white-space: nowrap;
        }
        .brand-icon {
            width: 38px;
            height: 38px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--gradient);
            color: #fff;
            border-radius: 12px;
            font-size: 16px;
            box-shadow: 0 4px 14px rgba(37, 99, 235, .3);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            margin-left: auto;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 999px;
            font-weight: 500;
            color: var(--text-soft);
            transition: var(--transition);
        }
        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 700;
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-left: 16px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: none;
            border-radius: 999px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            line-height: 1.2;
        }
        .btn-sm { padding: 9px 20px; font-size: 14px; }
        .btn-md { padding: 14px 30px; font-size: 16px; }
        .btn-lg { padding: 16px 40px; font-size: 17px; }
        .btn-primary {
            background: var(--gradient);
            color: #fff;
            box-shadow: 0 4px 16px rgba(37, 99, 235, .3);
        }
        .btn-primary:hover {
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(37, 99, 235, .35);
        }
        .btn-blue {
            background: var(--primary-light);
            color: var(--primary);
        }
        .btn-blue:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, .7);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, .12);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== 移动端头部 ===== */
        .mobile-topbar {
            display: none;
            position: sticky;
            top: 0;
            z-index: 100;
            height: 60px;
            align-items: center;
            background: rgba(255, 255, 255, .95);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
        }
        .mobile-topbar .brand { font-size: 17px; }
        .mobile-topbar .brand-icon { width: 32px; height: 32px; font-size: 14px; border-radius: 10px; }

        /* ===== 页面 Hero ===== */
        .page-hero {
            position: relative;
            padding: 120px 0 100px;
            background-size: cover;
            background-position: center;
            color: #fff;
            text-align: center;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(11, 21, 38, .88), rgba(30, 64, 175, .76));
        }
        .page-hero .container { position: relative; z-index: 2; }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 18px;
            background: rgba(255, 255, 255, .14);
            border: 1px solid rgba(255, 255, 255, .25);
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            backdrop-filter: blur(8px);
            margin-bottom: 24px;
        }
        .page-hero h1 {
            font-size: clamp(32px, 5vw, 54px);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: 1px;
        }
        .page-hero p.hero-desc {
            font-size: clamp(16px, 2vw, 19px);
            color: rgba(255, 255, 255, .85);
            max-width: 680px;
            margin: 0 auto 36px;
        }
        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-meta {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 50px;
            flex-wrap: wrap;
        }
        .hero-meta-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, .8);
        }
        .hero-meta-item i { color: #fbbf24; }

        /* ===== 通用板块 ===== */
        .section { padding: var(--space) 0; }
        .section-alt { background: var(--bg-white); }
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 48px;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 999px;
            font-size: 13px;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .section-head h2 {
            font-size: clamp(26px, 3vw, 38px);
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 14px;
            line-height: 1.3;
        }
        .section-head p {
            color: var(--text-soft);
            font-size: 16px;
        }

        /* ===== 注册流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .step-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            position: relative;
            transition: var(--transition);
        }
        .step-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }
        .step-num {
            width: 52px;
            height: 52px;
            margin: 0 auto 18px;
            background: var(--gradient);
            color: #fff;
            font-size: 22px;
            font-weight: 800;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 6px 18px rgba(37, 99, 235, .28);
        }
        .step-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; color: var(--dark); }
        .step-card p { font-size: 14px; color: var(--text-soft); line-height: 1.65; }
        .step-arrow {
            position: absolute;
            top: 44%;
            right: -18px;
            transform: translateY(-50%);
            color: var(--primary);
            font-size: 18px;
            z-index: 3;
        }

        /* ===== 注册优势 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 30px 28px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::after {
            content: '';
            position: absolute;
            right: 0;
            bottom: 0;
            width: 90px;
            height: 90px;
            background: radial-gradient(circle, rgba(37, 99, 235, .06) 0%, transparent 70%);
            border-radius: 50%;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .feature-icon {
            width: 50px;
            height: 50px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 18px;
            background: var(--primary-light);
            color: var(--primary);
        }
        .feature-card:nth-child(2) .feature-icon { background: var(--accent-light); color: var(--accent); }
        .feature-card:nth-child(3) .feature-icon { background: #ecfdf5; color: #059669; }
        .feature-card:nth-child(4) .feature-icon { background: #fdf2f8; color: #db2777; }
        .feature-card:nth-child(5) .feature-icon { background: #fef3c7; color: #d97706; }
        .feature-card:nth-child(6) .feature-icon { background: #e0e7ff; color: #4f46e5; }
        .feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; color: var(--dark); }
        .feature-card p { font-size: 14px; color: var(--text-soft); line-height: 1.7; }

        /* ===== 数据统计 ===== */
        .stats-section {
            background: var(--dark);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 80px 0;
            color: #fff;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(11, 21, 38, .88);
        }
        .stats-section .container { position: relative; z-index: 2; }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }
        .stat-item h3 {
            font-size: clamp(30px, 4vw, 46px);
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .stat-item h3 span { color: #fbbf24; }
        .stat-item p { color: rgba(255, 255, 255, .7); font-size: 15px; margin-top: 6px; }

        /* ===== 注意事项 ===== */
        .tips-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .tips-image {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .tips-image img { width: 100%; height: 360px; object-fit: cover; }
        .tips-list li {
            display: flex;
            gap: 16px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border);
        }
        .tips-list li:last-child { border-bottom: none; }
        .tips-icon {
            width: 42px;
            height: 42px;
            flex-shrink: 0;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
        }
        .tips-list h4 { font-size: 17px; font-weight: 700; color: var(--dark); margin-bottom: 4px; }
        .tips-list p { font-size: 14px; color: var(--text-soft); }

        /* ===== 资讯列表 ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .news-card {
            display: flex;
            gap: 20px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 20px;
            transition: var(--transition);
        }
        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .news-thumb {
            width: 120px;
            height: 110px;
            flex-shrink: 0;
            border-radius: 12px;
            overflow: hidden;
            position: relative;
        }
        .news-thumb img { width: 100%; height: 100%; object-fit: cover; }
        .news-body { display: flex; flex-direction: column; }
        .news-tag {
            align-self: flex-start;
            padding: 4px 12px;
            background: var(--accent-light);
            color: var(--accent);
            border-radius: 999px;
            font-size: 12px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .news-body h3 { font-size: 16px; font-weight: 700; color: var(--dark); line-height: 1.45; margin-bottom: 6px; }
        .news-body p { font-size: 13px; color: var(--text-soft); line-height: 1.6; flex: 1; }
        .news-date { font-size: 12px; color: var(--text-muted); margin-top: 8px; }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--primary-light); }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            background: none;
            border: none;
            text-align: left;
            font-weight: 600;
            font-size: 16px;
            color: var(--dark);
            cursor: pointer;
            gap: 16px;
        }
        .faq-question i {
            color: var(--primary);
            font-size: 14px;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
        }
        .faq-answer-inner {
            padding: 0 24px 20px;
            color: var(--text-soft);
            font-size: 14px;
            line-height: 1.75;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 0;
        }
        .cta-box {
            background: var(--gradient);
            border-radius: 28px;
            padding: 56px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
            margin-bottom: -40px;
            box-shadow: 0 20px 50px rgba(37, 99, 235, .3);
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: rgba(255, 255, 255, .08);
            border-radius: 50%;
        }
        .cta-box::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -40px;
            width: 180px;
            height: 180px;
            background: rgba(255, 255, 255, .06);
            border-radius: 50%;
        }
        .cta-box h2 { font-size: clamp(24px, 3vw, 34px); font-weight: 800; margin-bottom: 12px; position: relative; z-index: 2; }
        .cta-box p { color: rgba(255, 255, 255, .85); margin-bottom: 30px; max-width: 520px; position: relative; z-index: 2; }
        .cta-buttons { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; position: relative; z-index: 2; }
        .cta-buttons .btn-white {
            background: #fff;
            color: var(--primary);
        }
        .cta-buttons .btn-white:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(0, 0, 0, .2); }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--dark);
            color: rgba(255, 255, 255, .8);
            padding-top: 100px;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 48px;
            padding: 40px 0 32px;
        }
        .footer-brand .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-logo i {
            width: 36px;
            height: 36px;
            background: var(--gradient);
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            color: #fff;
        }
        .footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, .6); max-width: 320px; }
        .footer-links h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-links h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 3px;
            border-radius: 2px;
            background: var(--accent);
        }
        .footer-links ul li { margin-bottom: 12px; }
        .footer-links ul li a,
        .footer-links ul li span {
            color: rgba(255, 255, 255, .65);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .footer-links ul li a:hover { color: #fff; padding-left: 4px; }
        .footer-links ul li i { color: var(--primary); width: 16px; }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 22px 0;
            text-align: center;
        }
        .footer-bottom p { font-size: 13px; color: rgba(255, 255, 255, .4); }

        /* ===== 移动端底部 Tab 导航 ===== */
        .mobile-tabbar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 200;
            background: rgba(255, 255, 255, .96);
            backdrop-filter: blur(16px);
            border-top: 1px solid var(--border);
            box-shadow: 0 -4px 20px rgba(15, 23, 42, .06);
            padding: 6px 0 calc(6px + env(safe-area-inset-bottom));
        }
        .tabbar-inner {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            max-width: 480px;
            margin: 0 auto;
        }
        .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 3px;
            padding: 8px 0 4px;
            color: var(--text-muted);
            font-size: 11px;
            font-weight: 500;
            transition: var(--transition);
        }
        .tab-item i { font-size: 20px; }
        .tab-item.active,
        .tab-item:hover {
            color: var(--primary);
        }
        .tab-item span { line-height: 1; }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .steps-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
            .features-grid { grid-template-columns: repeat(2, 1fr); }
            .news-grid { grid-template-columns: 1fr; }
            .step-arrow { display: none; }
        }
        @media (max-width: 768px) {
            :root { --space: 56px; }
            .site-header { display: none; }
            .mobile-topbar { display: flex; padding: 0 20px; }
            .footer-inner { grid-template-columns: 1fr; gap: 32px; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
            .tips-layout { grid-template-columns: 1fr; gap: 32px; }
            .tips-image img { height: 240px; }
            .news-card { flex-direction: column; }
            .news-thumb { width: 100%; height: 180px; }
            .mobile-tabbar { display: block; }
            body { padding-bottom: 70px; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .steps-grid { grid-template-columns: 1fr; }
            .features-grid { grid-template-columns: 1fr; }
            .page-hero { padding: 80px 0 60px; }
            .hero-meta { gap: 16px; }
            .cta-box { padding: 40px 24px; border-radius: 20px; }
            .cta-buttons .btn { width: 100%; }
            .footer-brand .footer-logo { font-size: 17px; }
            .footer-links h4 { font-size: 15px; }
        }

        /* ===== 可访问性 ===== */
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(37, 99, 235, .4);
            outline-offset: 2px;
        }

/* roulang page: article */
:root{
    --primary:#0f3b8f;
    --primary-2:#1f5fdb;
    --accent:#ff7a29;
    --accent-2:#ffb45d;
    --dark:#0b1a33;
    --night:#081225;
    --bg:#f4f7fd;
    --surface:#ffffff;
    --text:#182235;
    --muted:#6b7690;
    --line:#e3e9f2;
    --success:#18a058;
    --radius:16px;
    --radius-sm:10px;
    --radius-lg:24px;
    --shadow:0 10px 30px rgba(15,59,143,.08);
    --shadow-lg:0 20px 45px rgba(15,59,143,.16);
    --transition:.25s ease;
    --font:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--transition)}
ul,ol{list-style:none}
button,input,select,textarea{font:inherit;outline:none}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}
.mobile-bottom-nav{display:none}

/* 顶部导航 */
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:1000;box-shadow:0 4px 18px rgba(15,59,143,.06)}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:74px;gap:24px}
.brand{display:flex;align-items:center;gap:10px;color:var(--primary);font-weight:800;font-size:19px;letter-spacing:.4px}
.brand-icon{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--primary-2));display:flex;align-items:center;justify-content:center;color:#fff;font-size:17px;box-shadow:0 6px 16px rgba(15,59,143,.3)}
.main-nav{display:flex;gap:8px;align-items:center}
.nav-link{padding:9px 18px;border-radius:999px;font-size:15px;font-weight:600;color:var(--muted);transition:all var(--transition)}
.nav-link:hover{color:var(--primary);background:rgba(15,59,143,.06)}
.nav-link.active{color:#fff;background:var(--primary);box-shadow:0 6px 16px rgba(15,59,143,.28)}
.nav-right{display:flex;gap:10px;align-items:center}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;font-weight:700;font-size:14px;padding:11px 24px;border:none;cursor:pointer;transition:transform var(--transition),box-shadow var(--transition),background var(--transition)}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn:focus-visible,.nav-link:focus-visible,.share-btn:focus-visible{a{outline:3px solid rgba(255,122,41,.5);outline-offset:2px}}
.btn-blue{background:linear-gradient(135deg,var(--primary-2),var(--primary));color:#fff;box-shadow:0 8px 22px rgba(31,95,219,.25)}
.btn-blue:hover{box-shadow:0 12px 30px rgba(31,95,219,.38)}
.btn-primary{background:linear-gradient(135deg,var(--accent),#f97316);color:#fff;box-shadow:0 8px 22px rgba(255,122,41,.3)}
.btn-primary:hover{box-shadow:0 12px 30px rgba(255,122,41,.45)}
.btn-accent{background:linear-gradient(135deg,var(--accent),#f97316);color:#fff;box-shadow:0 10px 24px rgba(255,122,41,.3)}
.btn-light{background:#fff;color:var(--primary);box-shadow:0 10px 26px rgba(0,0,0,.16)}
.btn-outline-light{border:2px solid rgba(255,255,255,.75);color:#fff;background:transparent}
.btn-outline-light:hover{background:rgba(255,255,255,.14)}
.btn-block{width:100%}
.btn-sm{padding:8px 18px;font-size:13px}

/* 文章 Banner */
.article-hero{position:relative;background:var(--night);background-position:center;background-size:cover;color:#fff;padding:72px 0;margin-bottom:-1px}
.article-hero-overlay{position:absolute;inset:0;background:linear-gradient(100deg,rgba(8,18,37,.92) 30%,rgba(15,59,143,.66) 70%,rgba(255,122,41,.3));z-index:1}
.article-hero .container{position:relative;z-index:2;max-width:1000px}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:rgba(255,255,255,.7);margin-bottom:16px}
.breadcrumb a{color:var(--accent-2)}
.breadcrumb a:hover{color:#fff}
.article-cat-tag{display:inline-block;background:rgba(255,255,255,.16);backdrop-filter:blur(8px);padding:6px 16px;border-radius:999px;font-size:13px;font-weight:700;letter-spacing:.6px;margin-bottom:16px;border:1px solid rgba(255,255,255,.24)}
.article-hero h1{font-size:34px;line-height:1.36;font-weight:800;margin-bottom:18px;max-width:820px;text-shadow:0 4px 20px rgba(0,0,0,.3)}
.article-meta{display:flex;flex-wrap:wrap;gap:22px;font-size:14px;color:rgba(255,255,255,.82)}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--accent-2)}

/* 正文主体 */
.article-body-wrap{padding:50px 0 70px;background:var(--bg)}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:36px;align-items:start}
.article-main{min-width:0}
.article-content{background:#fff;border-radius:var(--radius-lg);padding:42px 48px;box-shadow:var(--shadow);border:1px solid var(--line);margin-bottom:30px}
.article-content h1,.article-content h2,.article-content h3,.article-content h4{color:var(--text);line-height:1.45;font-weight:800;margin:30px 0 16px}
.article-content h1{font-size:26px;padding-bottom:12px;border-bottom:2px solid var(--line)}
.article-content h2{font-size:22px;margin-top:34px;padding-left:14px;border-left:4px solid var(--primary);border-radius:2px}
.article-content h3{font-size:19px;color:var(--primary)}
.article-content h4{font-size:17px}
.article-content p{font-size:16px;line-height:1.95;color:#2b3348;margin-bottom:18px}
.article-content a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.article-content a:hover{color:var(--accent)}
.article-content img{border-radius:14px;margin:24px 0;box-shadow:var(--shadow)}
.article-content ul,.article-content ol{margin:0 0 22px 0;padding-left:22px}
.article-content ul li{list-style:disc;margin-bottom:10px;padding-left:4px}
.article-content ol li{list-style:decimal;margin-bottom:10px;padding-left:4px}
.article-content blockquote{border-left:4px solid var(--accent);background:rgba(255,122,41,.06);padding:16px 22px;border-radius:0 12px 12px 0;margin:24px 0;color:#5b6070;font-style:normal}
.article-content blockquote p{margin-bottom:8px}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14px}
.article-content th,.article-content td{border:1px solid var(--line);padding:12px 14px;text-align:left}
.article-content th{background:rgba(15,59,143,.05);font-weight:700}
.article-content code{background:rgba(15,59,143,.07);padding:2px 8px;border-radius:6px;font-size:14px}
.article-content pre{background:var(--night);color:#e3e9f2;padding:20px;border-radius:14px;overflow-x:auto;margin:24px 0}
.article-content pre code{background:transparent;padding:0;color:inherit}

/* 分享 */
.article-share{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px 22px;box-shadow:var(--shadow);margin-bottom:30px}
.article-share span{font-weight:700;color:var(--text);font-size:15px}
.share-btn{width:40px;height:40px;border-radius:12px;background:rgba(15,59,143,.06);display:inline-flex;align-items:center;justify-content:center;color:var(--primary);font-size:15px;border:none;cursor:pointer;transition:all var(--transition)}
.share-btn:hover{background:var(--primary);color:#fff;transform:translateY(-3px);box-shadow:var(--shadow)}
.share-btn i{pointer-events:none}

/* 上一篇下一篇 */
.article-pager{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.pager-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 22px;transition:all var(--transition);display:block}
.pager-item:hover{border-color:var(--primary);box-shadow:var(--shadow);transform:translateY(-3px)}
.pager-label{display:block;font-size:12px;color:var(--muted);margin-bottom:6px;font-weight:600}
.pager-label i{font-size:11px}
.pager-item a{font-weight:700;color:var(--primary);font-size:15px}
.text-right{text-align:right}

/* 侧边栏 */
.article-side{display:flex;flex-direction:column;gap:26px;position:sticky;top:96px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow)}
.side-card h3{font-size:17px;font-weight:800;color:var(--text);margin-bottom:18px;padding-bottom:12px;border-bottom:2px solid var(--line);position:relative}
.side-card h3::after{content:'';position:absolute;left:0;bottom:-2px;width:42px;height:2px;background:linear-gradient(90deg,var(--accent),var(--accent-2));border-radius:2px}
.info-list li{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-bottom:1px dashed var(--line);font-size:14px}
.info-list li:last-child{border-bottom:none}
.info-list span{color:var(--muted)}
.info-list strong{color:var(--text);font-weight:700}
.side-list li{padding:5px 0}
.side-list a{display:flex;gap:14px;align-items:center;padding:9px;border-radius:12px;transition:all var(--transition)}
.side-list a:hover{background:rgba(15,59,143,.05);transform:translateX(4px)}
.side-thumb{width:64px;height:50px;border-radius:10px;overflow:hidden;flex-shrink:0;background:rgba(15,59,143,.08)}
.side-thumb img{width:100%;height:100%;object-fit:cover}
.side-info{min-width:0}
.side-info strong{display:block;font-size:14px;font-weight:700;color:var(--text);line-height:1.5;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.side-info small{display:block;color:var(--muted);font-size:12px;margin-top:4px}
.side-cta{position:relative;color:#fff;background-size:cover;background-position:center;border:none;overflow:hidden}
.side-cta::before{content:'';position:absolute;inset:0;background:linear-gradient(160deg,rgba(8,18,37,.88),rgba(15,59,143,.76));z-index:1}
.side-cta>*{position:relative;z-index:2}
.side-cta h3{color:#fff;border-bottom-color:rgba(255,255,255,.2)}
.side-cta h3::after{background:var(--accent)}
.side-cta p{font-size:14px;color:rgba(255,255,255,.88);margin-bottom:18px;line-height:1.7}
.side-cta .btn{margin-bottom:12px}

/* 未找到 */
.not-found-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:70px 30px;text-align:center;box-shadow:var(--shadow);margin-bottom:30px}
.not-found-card i{font-size:48px;color:var(--accent);margin-bottom:16px;display:inline-block}
.not-found-card h2{font-size:24px;font-weight:800;margin-bottom:10px}
.not-found-card p{color:var(--muted);margin-bottom:24px}
.not-found-card .btn{padding:13px 32px;font-size:15px}

/* FAQ */
.faq-section{padding:72px 0;background:#fff}
.section-head{text-align:center;max-width:640px;margin:0 auto 48px}
.eyebrow{display:inline-block;background:rgba(255,122,41,.1);color:var(--accent);font-size:13px;font-weight:800;padding:5px 16px;border-radius:999px;margin-bottom:14px;letter-spacing:1px}
.section-head h2{font-size:30px;font-weight:800;margin-bottom:14px;letter-spacing:.5px}
.section-head p{color:var(--muted);font-size:15px}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;max-width:1000px;margin:0 auto}
.faq-item{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:26px 28px;transition:all var(--transition)}
.faq-item:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(255,122,41,.4)}
.faq-item h3{font-size:16px;font-weight:800;color:var(--primary);margin-bottom:10px;display:flex;align-items:center;gap:10px}
.faq-item h3 i{color:var(--accent);font-size:14px}
.faq-item p{font-size:14px;color:var(--muted);line-height:1.8}

/* CTA */
.cta-section{position:relative;padding:80px 0;background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;overflow:hidden}
.cta-section::before{content:'';position:absolute;width:340px;height:340px;border-radius:50%;background:rgba(255,122,41,.22);top:-140px;right:-80px}
.cta-section::after{content:'';position:absolute;width:260px;height:260px;border-radius:50%;background:rgba(255,255,255,.1);bottom:-120px;left:-60px}
.cta-inner{position:relative;z-index:2;text-align:center;max-width:680px;margin:0 auto}
.cta-inner h2{font-size:32px;font-weight:800;margin-bottom:16px;letter-spacing:.5px}
.cta-inner p{font-size:16px;color:rgba(255,255,255,.88);margin-bottom:32px}
.cta-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.cta-buttons .btn{padding:14px 34px;font-size:16px}
.cta-buttons .btn-light{background:var(--accent);color:#fff;box-shadow:0 12px 30px rgba(255,122,41,.45)}
.cta-buttons .btn-light:hover{background:#f97316}

/* 页脚 */
.footer{background:var(--night);color:#c8d0df;padding:70px 0 30px}
.footer-inner{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:48px;padding-bottom:46px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-logo{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:21px;font-weight:800;margin-bottom:16px}
.footer-logo i{color:var(--accent)}
.footer-brand p{font-size:14px;line-height:1.85;color:#96a0b5;max-width:360px}
.footer-links h4{color:#fff;font-size:16px;font-weight:700;margin-bottom:18px;position:relative;padding-bottom:10px}
.footer-links h4::after{content:'';position:absolute;left:0;bottom:0;width:28px;height:2px;background:var(--accent);border-radius:2px}
.footer-links li{margin-bottom:12px;font-size:14px}
.footer-links a{color:#96a0b5;transition:all var(--transition)}
.footer-links a:hover{color:var(--accent-2);padding-left:4px}
.footer-links span{color:#96a0b5}
.footer-links i{margin-right:6px;color:var(--accent-2);width:16px;text-align:center}
.footer-bottom{padding-top:26px;text-align:center}
.footer-bottom p{font-size:13px;color:#7e8ba3}

/* 移动端底部导航 */
.mobile-bottom-nav{position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:1px solid var(--line);display:none;z-index:1001;padding-bottom:env(safe-area-inset-bottom);box-shadow:0 -6px 24px rgba(15,59,143,.1)}
.mobile-nav-link{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:10px 0 8px;color:var(--muted);font-size:11px;font-weight:600;gap:4px;transition:color var(--transition)}
.mobile-nav-link i{font-size:18px}
.mobile-nav-link.active{color:var(--primary)}
.mobile-nav-link span{line-height:1.2}
body{padding-bottom:0}

/* 响应式 */
@media(min-width:1300px){
    .container{padding:0 32px}
}
@media(max-width:1024px){
    .article-layout{grid-template-columns:1fr;gap:30px}
    .article-side{position:static;display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
    .side-cta{background-size:cover}
    .footer-inner{grid-template-columns:1fr 1fr;gap:36px}
    .cta-section{padding:64px 0}
    .faq-grid{gap:16px}
}
@media(max-width:768px){
    .main-nav,.nav-right{display:none}
    .mobile-bottom-nav{display:flex}
    body{padding-bottom:64px}
    .site-header .container{height:62px}
    .brand{font-size:17px}
    .brand-icon{width:34px;height:34px;font-size:15px}
    .article-hero{padding:50px 0}
    .article-hero h1{font-size:25px;line-height:1.4}
    .article-content{padding:26px 22px;border-radius:var(--radius)}
    .article-content p{font-size:15px;line-height:1.9}
    .article-content h2{font-size:20px}
    .article-content h3{font-size:17px}
    .article-pager{grid-template-columns:1fr;gap:12px}
    .article-share{flex-wrap:wrap}
    .faq-grid{grid-template-columns:1fr;gap:14px}
    .faq-item{padding:20px}
    .section-head h2{font-size:25px}
    .cta-inner h2{font-size:26px}
    .footer-inner{grid-template-columns:1fr;gap:30px;padding-bottom:36px}
    .footer{padding-top:50px}
    .article-side{grid-template-columns:1fr;display:flex}
    .article-side{position:static}
    .article-body-wrap{padding:36px 0 50px}
}
@media(max-width:520px){
    .container{padding:0 16px}
    .brand-icon{display:none}
    .brand{font-size:16px}
    .article-hero h1{font-size:22px}
    .article-meta{gap:12px;flex-wrap:wrap;font-size:13px}
    .article-content{padding:20px 16px}
    .article-content h1{font-size:22px}
    .article-content h2{font-size:18px}
    .article-content blockquote{padding:14px 16px}
    .article-pager .pager-item{padding:14px 16px}
    .section-head h2{font-size:22px}
    .cta-buttons{flex-direction:column;width:100%}
    .cta-buttons .btn{width:100%}
    .footer-links li{font-size:13px}
    .faq-item h3{font-size:15px}
    .side-thumb{width:54px;height:42px}
}
@media(max-width:360px){
    .article-hero h1{font-size:20px}
    .article-meta{flex-direction:column;gap:6px}
}

/* roulang page: category2 */
:root {
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --primary-light: #dbeafe;
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --accent-light: #fef3c7;
  --bg: #f4f7fb;
  --surface: #ffffff;
  --text: #0f172a;
  --text-weak: #5b6b84;
  --text-faint: #8b9bb4;
  --border: #e2e8f0;
  --success: #16a34a;
  --danger: #dc2626;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow: 0 8px 30px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 18px 50px rgba(37, 99, 235, 0.16);
  --transition: all 0.28s ease;
  --max-width: 1200px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section { padding: clamp(48px, 7vw, 88px) 0; }

/* ===== 顶部导航 ===== */
.site-header {
  position: sticky; top: 0; z-index: 999;
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 70px; gap: 20px;
}
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; color: var(--text); font-weight: 800; font-size: 19px; }
.brand:hover { color: var(--primary); }
.brand-icon {
  width: 38px; height: 38px; border-radius: 11px;
  background: linear-gradient(135deg, var(--primary), #60a5fa);
  color: #fff; display: inline-flex; align-items: center; justify-content: center;
  font-size: 16px; box-shadow: 0 6px 16px rgba(37,99,235,0.35);
}
.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav .nav-link {
  padding: 9px 18px; border-radius: 999px; font-weight: 600;
  color: var(--text-weak); font-size: 15px;
}
.main-nav .nav-link:hover { color: var(--primary); background: var(--primary-light); }
.main-nav .nav-link.active { color: #fff; background: var(--primary); box-shadow: 0 4px 14px rgba(37,99,235,0.35); }
.nav-right { display: flex; align-items: center; gap: 10px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border-radius: 999px; border: none; font-weight: 700;
  padding: 11px 22px; font-size: 14px; line-height: 1;
  transition: var(--transition);
}
.btn-sm { padding: 9px 18px; font-size: 13px; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 14px rgba(37,99,235,0.3); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(37,99,235,0.42); }
.btn-primary:active { transform: translateY(0); }
.btn-blue { background: var(--primary-light); color: var(--primary); }
.btn-blue:hover { background: #bfdbfe; color: var(--primary-dark); transform: translateY(-2px); }
.btn-accent { background: var(--accent); color: #fff; box-shadow: 0 4px 14px rgba(245,158,11,0.35); }
.btn-accent:hover { background: var(--accent-dark); color: #fff; transform: translateY(-2px); }
.btn-outline { background: transparent; border: 2px solid rgba(255,255,255,0.7); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,0.14); border-color: #fff; transform: translateY(-2px); }
.btn:focus-visible, .nav-link:focus-visible, .brand:focus-visible, a:focus-visible {
  outline: 3px solid rgba(37,99,235,0.45); outline-offset: 2px;
}
a:focus-visible { outline: 3px solid rgba(37,99,235,0.45); outline-offset: 2px; border-radius: 6px; }

/* ===== 页面 Banner ===== */
.page-hero {
  position: relative; background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  padding: clamp(56px, 9vw, 110px) 0;
  color: #fff; overflow: hidden;
}
.page-hero::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(6,22,50,0.88) 0%, rgba(15,23,42,0.68) 45%, rgba(37,99,235,0.35) 100%);
}
.page-hero .container { position: relative; z-index: 2; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; font-size: 14px; color: rgba(255,255,255,0.75); margin-bottom: 22px; }
.breadcrumb a { color: rgba(255,255,255,0.75); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb i { font-size: 12px; color: rgba(255,255,255,0.45); }
.page-hero h1 {
  font-size: clamp(30px, 4.6vw, 48px); font-weight: 900; line-height: 1.25;
  margin-bottom: 16px; letter-spacing: 0.5px;
}
.page-hero h1 .hero-highlight { color: var(--accent); }
.page-hero .hero-desc {
  max-width: 620px; font-size: 16px; line-height: 1.85; color: rgba(255,255,255,0.85);
  margin-bottom: 30px;
}
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-tags span {
  background: rgba(255,255,255,0.14); border: 1px solid rgba(255,255,255,0.25);
  padding: 7px 16px; border-radius: 999px; font-size: 13px; color: rgba(255,255,255,0.92);
  backdrop-filter: blur(6px);
}
.hero-tags i { color: var(--accent); margin-right: 6px; }

/* ===== 通用板块标题 ===== */
.section-head { text-align: center; max-width: 700px; margin: 0 auto clamp(36px, 5vw, 56px); }
.section-head .sec-kicker {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--accent-light); color: var(--accent-dark);
  font-size: 13px; font-weight: 700; padding: 6px 16px; border-radius: 999px;
  margin-bottom: 14px;
}
.section-head h2 { font-size: clamp(24px, 3.4vw, 36px); font-weight: 800; line-height: 1.3; }
.section-head h2 span { color: var(--primary); }
.section-head p { color: var(--text-weak); margin-top: 12px; font-size: 15px; }

/* ===== 注册流程 ===== */
.steps-section { background: var(--surface); }
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.step-card {
  position: relative; padding: 32px 24px 28px; border-radius: var(--radius);
  background: var(--bg); border: 1px solid var(--border);
  transition: var(--transition); overflow: hidden;
}
.step-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--primary); }
.step-num {
  width: 48px; height: 48px; border-radius: 14px; margin-bottom: 18px;
  background: linear-gradient(135deg, var(--primary), #60a5fa);
  color: #fff; font-size: 20px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 18px rgba(37,99,235,0.3);
}
.step-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.step-card p { color: var(--text-weak); font-size: 14px; line-height: 1.75; }
.step-link { position: absolute; top: 0; right: 0; width: 0; height: 0; border-top: 42px solid var(--primary); border-left: 42px solid transparent; }
.step-link i { position: absolute; top: -36px; right: 7px; font-size: 12px; color: #fff; }

/* ===== 准备清单 ===== */
.prep-card {
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(28px, 5vw, 60px);
  align-items: center; background: var(--surface); border-radius: 24px;
  border: 1px solid var(--border); box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.prep-content { padding: clamp(28px, 4vw, 48px); }
.prep-content h3 { font-size: 24px; font-weight: 800; margin-bottom: 18px; }
.prep-content h3 span { color: var(--primary); }
.prep-list { display: flex; flex-direction: column; gap: 16px; }
.prep-list li {
  display: flex; gap: 14px; align-items: flex-start;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 14px; padding: 14px 18px; transition: var(--transition);
}
.prep-list li:hover { border-color: var(--accent); box-shadow: var(--shadow-sm); transform: translateX(4px); }
.prep-list i.cl { color: var(--accent); font-size: 18px; margin-top: 3px; flex-shrink: 0; }
.prep-list strong { display: block; font-size: 15px; margin-bottom: 2px; }
.prep-list span { color: var(--text-weak); font-size: 13.5px; }
.prep-media { position: relative; height: 100%; min-height: 320px; }
.prep-media img { width: 100%; height: 100%; min-height: 320px; object-fit: cover; }
.prep-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(15,23,42,0.4)); }
.prep-media .prep-tag {
  position: absolute; left: 20px; bottom: 20px; z-index: 2;
  background: rgba(255,255,255,0.92); color: var(--text);
  padding: 9px 18px; border-radius: 999px; font-size: 13px; font-weight: 700;
  box-shadow: var(--shadow);
}

/* ===== 注册方式卡片 ===== */
.methods-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.method-card {
  background: var(--surface); border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--border); box-shadow: var(--shadow-sm);
  transition: var(--transition); display: flex; flex-direction: column;
}
.method-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: rgba(37,99,235,0.3); }
.method-media { position: relative; height: 190px; overflow: hidden; }
.method-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.method-card:hover .method-media img { transform: scale(1.06); }
.method-media .badge-hot {
  position: absolute; top: 14px; left: 14px;
  background: var(--accent); color: #fff; font-size: 12px; font-weight: 700;
  padding: 5px 12px; border-radius: 999px; box-shadow: 0 4px 12px rgba(245,158,11,0.4);
}
.method-body { padding: 22px 24px 26px; display: flex; flex-direction: column; flex: 1; }
.method-body h3 { font-size: 18px; font-weight: 800; margin-bottom: 8px; }
.method-body p { color: var(--text-weak); font-size: 14px; line-height: 1.75; flex: 1; }
.method-meta { display: flex; align-items: center; justify-content: space-between; margin-top: 18px; }
.method-meta .price { color: var(--accent-dark); font-weight: 800; font-size: 15px; }
.method-meta a { font-size: 13.5px; font-weight: 700; color: var(--primary); }
.method-meta a:hover { color: var(--primary-dark); }

/* ===== 注意事项 ===== */
.notice-section { background: linear-gradient(180deg, var(--surface), #eef3fb); }
.notice-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.notice-card {
  background: var(--surface); border-radius: var(--radius); padding: 28px 22px;
  border: 1px solid var(--border); box-shadow: var(--shadow-sm);
  transition: var(--transition); text-align: center;
}
.notice-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--accent); }
.notice-card .icon-circle {
  width: 54px; height: 54px; border-radius: 16px; margin: 0 auto 16px;
  display: flex; align-items: center; justify-content: center; font-size: 21px;
  color: var(--primary); background: var(--primary-light);
}
.notice-card:nth-child(2) .icon-circle { color: var(--accent-dark); background: var(--accent-light); }
.notice-card:nth-child(3) .icon-circle { color: var(--success); background: #dcfce7; }
.notice-card:nth-child(4) .icon-circle { color: var(--danger); background: #fee2e2; }
.notice-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.notice-card p { font-size: 13.5px; color: var(--text-weak); line-height: 1.72; }

/* ===== 精选内容 (PHP) ===== */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card {
  background: var(--surface); border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--border); box-shadow: var(--shadow-sm);
  transition: var(--transition); display: flex; flex-direction: column;
}
.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.news-card .news-img { position: relative; height: 160px; overflow: hidden; }
.news-card .news-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.news-card:hover .news-img img { transform: scale(1.06); }
.news-card .news-tag {
  position: absolute; top: 12px; left: 12px;
  background: rgba(37,99,235,0.9); color: #fff;
  padding: 4px 12px; border-radius: 999px; font-size: 12px;
  backdrop-filter: blur(4px);
}
.news-card .news-body { padding: 20px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.news-card h3 { font-size: 16.5px; font-weight: 700; line-height: 1.55; margin-bottom: 10px; flex: 1; }
.news-card h3 a { color: var(--text); }
.news-card h3 a:hover { color: var(--primary); }
.news-card p { color: var(--text-weak); font-size: 13.5px; line-height: 1.72; margin-bottom: 14px; }
.news-card .news-meta { display: flex; align-items: center; gap: 16px; font-size: 12.5px; color: var(--text-faint); border-top: 1px solid var(--border); padding-top: 14px; }
.news-card .news-meta i { margin-right: 4px; }

/* ===== FAQ ===== */
.faq-section { background: var(--surface); }
.faq-wrap { max-width: 820px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item {
  background: var(--bg); border: 1px solid var(--border); border-radius: 14px;
  overflow: hidden; transition: var(--transition);
}
.faq-item:hover { border-color: var(--primary); }
.faq-item details { cursor: pointer; }
.faq-item summary {
  list-style: none; display: flex; align-items: center; justify-content: space-between;
  padding: 19px 24px; font-weight: 700; font-size: 15.5px; gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .faq-icon {
  width: 30px; height: 30px; border-radius: 50%; flex-shrink: 0;
  background: var(--primary-light); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition); font-size: 13px;
}
.faq-item details[open] summary .faq-icon { transform: rotate(135deg); background: var(--primary); color: #fff; }
.faq-item .faq-answer { padding: 0 24px 20px; color: var(--text-weak); font-size: 14px; line-height: 1.85; }

/* ===== CTA ===== */
.cta-banner {
  position: relative; border-radius: 26px; overflow: hidden;
  background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  padding: clamp(40px, 6vw, 68px); text-align: center; color: #fff;
}
.cta-banner::before { content: ""; position: absolute; inset: 0; background: linear-gradient(120deg, rgba(29,78,216,0.92), rgba(37,99,235,0.78)); }
.cta-banner .container { position: relative; z-index: 2; }
.cta-banner h2 { font-size: clamp(22px, 3vw, 32px); font-weight: 800; margin-bottom: 12px; }
.cta-banner p { color: rgba(255,255,255,0.85); max-width: 560px; margin: 0 auto 28px; font-size: 15px; }
.cta-buttons { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }

/* ===== 页脚 ===== */
.footer { background: #0b1220; color: #9aa7bd; margin-top: clamp(24px, 4vw, 48px); }
.footer .container { position: relative; z-index: 2; }
.footer-inner { display: grid; grid-template-columns: 1.4fr 0.8fr 0.9fr; gap: clamp(28px, 5vw, 60px); padding: clamp(44px, 6vw, 64px) 0 36px; }
.footer-logo { display: inline-flex; align-items: center; gap: 9px; color: #fff; font-size: 19px; font-weight: 800; margin-bottom: 14px; }
.footer-logo i { color: var(--accent); }
.footer-brand p { font-size: 14px; line-height: 1.85; margin-top: 4px; }
.footer-links h4 { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer-links h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 28px; height: 3px; border-radius: 3px; background: var(--accent); }
.footer-links li { margin-bottom: 12px; }
.footer-links a { color: #9aa7bd; font-size: 14px; }
.footer-links a:hover { color: var(--accent); padding-left: 5px; }
.footer-links li span { font-size: 14px; }
.footer-links i { width: 20px; color: var(--accent); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 20px 0; text-align: center; font-size: 13px; color: #748199; }
.footer-bottom p { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; }

/* ===== 移动端底部 Tab ===== */
.mobile-tabbar {
  display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 999;
  background: rgba(255,255,255,0.96); backdrop-filter: blur(14px);
  border-top: 1px solid var(--border); box-shadow: 0 -6px 24px rgba(15,23,42,0.06);
}
.mobile-tabbar .tab-inner { display: grid; grid-template-columns: repeat(3, 1fr); }
.mobile-tabbar a {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 10px 4px 12px; color: var(--text-faint); font-size: 11.5px; font-weight: 600; gap: 4px;
}
.mobile-tabbar a i { font-size: 19px; }
.mobile-tabbar a.active { color: var(--primary); }
.mobile-tabbar a.active i { transform: translateY(-2px); }
.mobile-tabbar a:hover { color: var(--primary); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .steps-grid, .methods-grid { grid-template-columns: repeat(2, 1fr); }
  .notice-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .prep-card { grid-template-columns: 1fr; }
  .prep-media { min-height: 260px; }
  .prep-media img { min-height: 260px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .site-header { display: none; }
  .page-hero { padding-top: 40px; }
  .steps-grid { grid-template-columns: 1fr; }
  .methods-grid { grid-template-columns: 1fr; }
  .notice-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 30px; }
  .mobile-tabbar { display: block; }
  body { padding-bottom: 62px; }
  .section { padding: 44px 0; }
  .method-card { max-width: 520px; margin: 0 auto; }
  .news-card { max-width: 520px; margin: 0 auto; }
  .cta-banner { border-radius: 16px; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .prep-content { padding: 22px 18px; }
  .prep-list li { padding: 12px 14px; }
  .method-body, .news-card .news-body { padding: 18px 16px 20px; }
  .faq-item summary { padding: 16px; font-size: 14.5px; }
  .faq-item .faq-answer { padding: 0 16px 16px; }
  .hero-tags span { font-size: 12px; }
  .cta-buttons .btn { width: 100%; }
  .footer-inner { padding-top: 40px; }
}