/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a3a5c;
            --primary-light: #2a5a8c;
            --primary-dark: #0f2440;
            --secondary: #2e86de;
            --secondary-light: #5ba3f0;
            --accent: #f5a623;
            --accent-light: #f8c15a;
            --bg: #f7f9fc;
            --bg-alt: #eef2f7;
            --bg-dark: #1a2a40;
            --text: #1a1a2e;
            --text-light: #5a6b7d;
            --text-white: #ffffff;
            --border: #e2e8f0;
            --border-light: #f0f2f5;
            --shadow-sm: 0 2px 8px rgba(26, 58, 92, 0.06);
            --shadow-md: 0 8px 30px rgba(26, 58, 92, 0.10);
            --shadow-lg: 0 20px 60px rgba(26, 58, 92, 0.12);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container-max: 1280px;
            --header-height: 76px;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--header-height);
        }
        a {
            color: var(--secondary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-light);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        ::selection {
            background: var(--secondary);
            color: #fff;
        }
        :focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* ===== 容器 ===== */
        .container-custom {
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        @media (max-width: 576px) {
            .container-custom {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 12px rgba(26, 58, 92, 0.05);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(26, 58, 92, 0.10);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            white-space: nowrap;
        }
        .logo:hover {
            color: var(--primary);
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            font-weight: 800;
            flex-shrink: 0;
        }
        .logo-text {
            letter-spacing: 0.02em;
        }
        .logo-text span {
            color: var(--secondary);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 0.25rem;
        }
        .nav-link {
            padding: 0.5rem 1.2rem;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            position: relative;
        }
        .nav-link:hover {
            color: var(--secondary);
            background: rgba(46, 134, 222, 0.06);
        }
        .nav-link.active {
            color: var(--secondary);
            background: rgba(46, 134, 222, 0.10);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 1.2rem;
            right: 1.2rem;
            height: 2px;
            background: var(--secondary);
            border-radius: 2px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 50px;
            padding: 0.35rem 0.35rem 0.35rem 1rem;
            transition: all var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(46, 134, 222, 0.10);
        }
        .search-box input {
            border: none;
            background: transparent;
            padding: 0.4rem 0;
            font-size: 0.9rem;
            color: var(--text);
            width: 140px;
            outline: none;
        }
        .search-box input::placeholder {
            color: var(--text-light);
        }
        .search-box button {
            background: var(--secondary);
            border: none;
            color: #fff;
            width: 34px;
            height: 34px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: background var(--transition);
        }
        .search-box button:hover {
            background: var(--primary-light);
        }
        .btn-cta-nav {
            background: linear-gradient(135deg, var(--secondary), var(--primary-light));
            color: #fff;
            border: none;
            padding: 0.5rem 1.4rem;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 600;
            transition: all var(--transition);
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .btn-cta-nav:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(46, 134, 222, 0.30);
            color: #fff;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--primary);
            cursor: pointer;
            padding: 0.25rem;
            line-height: 1;
        }

        /* ===== 移动端导航 ===== */
        @media (max-width: 991px) {
            .nav-menu {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 1.5rem;
                gap: 0.5rem;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
                max-height: calc(100vh - var(--header-height));
                overflow-y: auto;
            }
            .nav-menu.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-link {
                padding: 0.75rem 1rem;
                font-size: 1.05rem;
                width: 100%;
                border-radius: var(--radius-sm);
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-link.active {
                background: rgba(46, 134, 222, 0.12);
            }
            .nav-actions {
                display: none;
            }
            .nav-actions.mobile-visible {
                display: flex;
                flex-direction: column;
                width: 100%;
                margin-top: 0.75rem;
                gap: 0.75rem;
            }
            .nav-actions.mobile-visible .search-box {
                width: 100%;
            }
            .nav-actions.mobile-visible .search-box input {
                width: 100%;
            }
            .nav-actions.mobile-visible .btn-cta-nav {
                width: 100%;
                justify-content: center;
                padding: 0.7rem;
            }
            .nav-toggle {
                display: block;
            }
            .header-inner {
                padding: 0 1rem;
            }
        }
        @media (max-width: 576px) {
            :root {
                --header-height: 64px;
            }
            .logo {
                font-size: 1.1rem;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 1rem;
            }
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            background: var(--primary-dark);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.3;
            mix-blend-mode: overlay;
            z-index: 1;
        }
        .hero-bg-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 36, 64, 0.92) 0%, rgba(26, 58, 92, 0.70) 50%, rgba(46, 134, 222, 0.30) 100%);
            z-index: 2;
        }
        .hero-content {
            position: relative;
            z-index: 3;
            padding: 4rem 0 5rem;
            text-align: center;
            max-width: 820px;
            margin: 0 auto;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            padding: 0.4rem 1.2rem;
            border-radius: 50px;
            color: rgba(255, 255, 255, 0.9);
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 1.5rem;
            letter-spacing: 0.02em;
        }
        .hero-badge i {
            color: var(--accent);
        }
        .hero-title {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.2;
            color: #fff;
            margin-bottom: 1.2rem;
            letter-spacing: -0.02em;
        }
        .hero-title span {
            color: var(--accent);
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-sub {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 620px;
            margin: 0 auto 2.2rem;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: center;
        }
        .btn-hero-primary {
            background: linear-gradient(135deg, var(--accent), #e8940e);
            color: var(--primary-dark);
            border: none;
            padding: 0.85rem 2.4rem;
            border-radius: 50px;
            font-size: 1.05rem;
            font-weight: 700;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            box-shadow: 0 8px 32px rgba(245, 166, 35, 0.30);
        }
        .btn-hero-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(245, 166, 35, 0.40);
            color: var(--primary-dark);
        }
        .btn-hero-secondary {
            background: rgba(255, 255, 255, 0.10);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.20);
            color: #fff;
            padding: 0.85rem 2.4rem;
            border-radius: 50px;
            font-size: 1.05rem;
            font-weight: 600;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn-hero-secondary:hover {
            background: rgba(255, 255, 255, 0.18);
            border-color: rgba(255, 255, 255, 0.30);
            color: #fff;
            transform: translateY(-3px);
        }
        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 2.5rem;
            margin-top: 3.5rem;
            flex-wrap: wrap;
        }
        .hero-stat {
            text-align: center;
            color: rgba(255, 255, 255, 0.85);
        }
        .hero-stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .hero-stat-number span {
            color: var(--accent);
        }
        .hero-stat-label {
            font-size: 0.85rem;
            opacity: 0.7;
            margin-top: 0.2rem;
        }
        @media (max-width: 768px) {
            .hero {
                min-height: 70vh;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .hero-sub {
                font-size: 1.05rem;
            }
            .hero-stats {
                gap: 1.5rem;
            }
            .hero-stat-number {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 576px) {
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-sub {
                font-size: 0.95rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .btn-hero-primary,
            .btn-hero-secondary {
                width: 100%;
                justify-content: center;
            }
            .hero-stats {
                flex-direction: column;
                gap: 1rem;
            }
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 5rem 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-header {
            text-align: center;
            margin-bottom: 3.5rem;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(46, 134, 222, 0.10);
            color: var(--secondary);
            padding: 0.3rem 1rem;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 0.8rem;
            letter-spacing: 0.02em;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 0.8rem;
            letter-spacing: -0.01em;
            line-height: 1.3;
        }
        .section-title-light {
            color: #fff;
        }
        .section-desc {
            font-size: 1.1rem;
            color: var(--text-light);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .section-desc-light {
            color: rgba(255, 255, 255, 0.75);
        }
        @media (max-width: 768px) {
            .section {
                padding: 3.5rem 0;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .section-desc {
                font-size: 1rem;
            }
            .section-header {
                margin-bottom: 2.5rem;
            }
        }
        @media (max-width: 576px) {
            .section {
                padding: 2.5rem 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
        }

        /* ===== 卡片 ===== */
        .card-custom {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            height: 100%;
        }
        .card-custom:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .card-custom-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }
        .card-custom-body {
            padding: 1.5rem;
        }
        .card-custom-tag {
            display: inline-block;
            background: rgba(46, 134, 222, 0.10);
            color: var(--secondary);
            padding: 0.2rem 0.8rem;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 0.6rem;
        }
        .card-custom-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }
        .card-custom-title a {
            color: inherit;
        }
        .card-custom-title a:hover {
            color: var(--secondary);
        }
        .card-custom-text {
            font-size: 0.92rem;
            color: var(--text-light);
            line-height: 1.6;
            margin-bottom: 0.8rem;
        }
        .card-custom-meta {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            font-size: 0.82rem;
            color: var(--text-light);
        }
        .card-custom-meta i {
            margin-right: 0.2rem;
        }

        /* ===== 分类卡片 ===== */
        .category-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .category-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .category-card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            display: block;
        }
        .category-card-body {
            padding: 1.8rem 1.5rem 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .category-card-icon {
            width: 52px;
            height: 52px;
            background: linear-gradient(135deg, var(--secondary), var(--primary-light));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.4rem;
            margin-bottom: 1rem;
            flex-shrink: 0;
        }
        .category-card-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 0.5rem;
        }
        .category-card-desc {
            font-size: 0.92rem;
            color: var(--text-light);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 1.2rem;
        }
        .category-card-link {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            color: var(--secondary);
            font-weight: 600;
            font-size: 0.92rem;
            transition: gap var(--transition);
        }
        .category-card-link:hover {
            gap: 0.7rem;
            color: var(--primary-light);
        }

        /* ===== 特色 / 优势 ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 1.8rem;
        }
        .feature-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 2rem 1.5rem;
            text-align: center;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .feature-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(46, 134, 222, 0.15);
        }
        .feature-icon {
            width: 60px;
            height: 60px;
            margin: 0 auto 1.2rem;
            background: rgba(46, 134, 222, 0.08);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--secondary);
            transition: all var(--transition);
        }
        .feature-item:hover .feature-icon {
            background: var(--secondary);
            color: #fff;
        }
        .feature-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 0.4rem;
        }
        .feature-desc {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* ===== 流程 ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            counter-reset: step;
        }
        .process-step {
            text-align: center;
            position: relative;
            padding-top: 0.5rem;
        }
        .process-step::before {
            counter-increment: step;
            content: counter(step);
            display: block;
            width: 52px;
            height: 52px;
            margin: 0 auto 1.2rem;
            background: linear-gradient(135deg, var(--secondary), var(--primary-light));
            border-radius: 50%;
            color: #fff;
            font-size: 1.3rem;
            font-weight: 800;
            line-height: 52px;
            text-align: center;
            box-shadow: 0 8px 24px rgba(46, 134, 222, 0.20);
        }
        .process-step-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 0.3rem;
        }
        .process-step-desc {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.5;
            max-width: 240px;
            margin: 0 auto;
        }
        .process-step:not(:last-child)::after {
            display: none;
        }
        @media (min-width: 768px) {
            .process-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }
        @media (max-width: 767px) {
            .process-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .process-step {
                max-width: 320px;
                margin: 0 auto;
            }
        }

        /* ===== 资讯列表 ===== */
        .news-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 1.5rem;
        }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 3rem 1rem;
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.6);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border);
        }
        .news-empty i {
            font-size: 2.5rem;
            margin-bottom: 0.8rem;
            opacity: 0.4;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(46, 134, 222, 0.20);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.2rem 1.5rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--primary);
            cursor: pointer;
            transition: background var(--transition);
            gap: 1rem;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            background: rgba(46, 134, 222, 0.03);
        }
        .faq-question i {
            font-size: 1.1rem;
            color: var(--secondary);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 1.5rem 1.2rem;
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            position: relative;
            overflow: hidden;
            padding: 4.5rem 0;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-title {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 0.8rem;
        }
        .cta-desc {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 2rem;
            line-height: 1.7;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: center;
        }
        .btn-cta-primary {
            background: var(--accent);
            color: var(--primary-dark);
            border: none;
            padding: 0.85rem 2.4rem;
            border-radius: 50px;
            font-size: 1.05rem;
            font-weight: 700;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            box-shadow: 0 8px 32px rgba(245, 166, 35, 0.25);
        }
        .btn-cta-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(245, 166, 35, 0.35);
            color: var(--primary-dark);
        }
        .btn-cta-outline {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            padding: 0.85rem 2.4rem;
            border-radius: 50px;
            font-size: 1.05rem;
            font-weight: 600;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn-cta-outline:hover {
            background: rgba(255, 255, 255, 0.10);
            border-color: rgba(255, 255, 255, 0.40);
            color: #fff;
            transform: translateY(-3px);
        }
        @media (max-width: 576px) {
            .cta-title {
                font-size: 1.5rem;
            }
            .cta-actions {
                flex-direction: column;
                align-items: center;
            }
            .btn-cta-primary,
            .btn-cta-outline {
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 4rem 0 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 1rem;
        }
        .footer-brand .logo:hover {
            color: #fff;
        }
        .footer-brand p {
            font-size: 0.92rem;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-title {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1rem;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .footer-links a:hover {
            color: var(--accent);
            transform: translateX(4px);
        }
        .footer-divider {
            border: none;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin: 0 0 1.5rem;
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        @media (max-width: 991px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 576px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .site-footer {
                padding: 2.5rem 0 1.5rem;
            }
        }

        /* ===== 分割线 ===== */
        .divider {
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--secondary), var(--accent));
            border-radius: 4px;
            margin: 0.8rem auto 1.2rem;
        }
        .divider-left {
            margin: 0.8rem 0 1.2rem;
        }

        /* ===== 通用工具 ===== */
        .text-gradient {
            background: linear-gradient(135deg, var(--secondary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .bg-blur {
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .gap-1 {
            gap: 0.5rem;
        }
        .gap-2 {
            gap: 1rem;
        }
        .gap-3 {
            gap: 1.5rem;
        }

        /* ===== 响应式辅助 ===== */
        @media (max-width: 768px) {
            .news-list {
                grid-template-columns: 1fr;
            }
            .feature-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 576px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 动画 ===== */
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate-fade-up {
            animation: fadeUp 0.6s ease-out forwards;
        }
        .delay-1 {
            animation-delay: 0.1s;
        }
        .delay-2 {
            animation-delay: 0.2s;
        }
        .delay-3 {
            animation-delay: 0.3s;
        }
        .delay-4 {
            animation-delay: 0.4s;
        }

        /* ===== Bootstrap 覆盖 ===== */
        .btn {
            border-radius: 50px;
            font-weight: 600;
            transition: all var(--transition);
        }
        .btn-primary {
            background: var(--secondary);
            border-color: var(--secondary);
        }
        .btn-primary:hover {
            background: var(--primary-light);
            border-color: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(46, 134, 222, 0.25);
        }
        .btn-outline-primary {
            color: var(--secondary);
            border-color: var(--secondary);
        }
        .btn-outline-primary:hover {
            background: var(--secondary);
            border-color: var(--secondary);
            color: #fff;
            transform: translateY(-2px);
        }
        .form-control {
            border-radius: var(--radius-sm);
            border-color: var(--border);
            padding: 0.6rem 1rem;
        }
        .form-control:focus {
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(46, 134, 222, 0.10);
        }

        /* ===== 滚动条 ===== */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 8px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--text-light);
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a3a6b;
            --primary-light: #2a5a9e;
            --primary-dark: #0f2444;
            --secondary: #d4a84b;
            --secondary-light: #e8c56e;
            --accent: #e8543e;
            --bg-light: #f8f9fc;
            --bg-white: #ffffff;
            --text-dark: #1a1a2e;
            --text-main: #2d3748;
            --text-muted: #6b7a8f;
            --border-color: #e2e8f0;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: var(--font-sans);
            color: var(--text-main);
            background: var(--bg-light);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            position: sticky;
            top: 0;
            z-index: 1000;
            transition: var(--transition);
        }
        .header-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: var(--text-dark);
            font-weight: 700;
            font-size: 1.25rem;
            transition: var(--transition);
        }
        .logo:hover { color: var(--primary); opacity: 0.92; text-decoration: none; }
        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            font-weight: 700;
            box-shadow: 0 2px 8px rgba(26,58,107,0.25);
        }
        .logo-text { letter-spacing: 0.5px; }
        .logo-text span { color: var(--secondary); }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-dark);
            cursor: pointer;
            padding: 6px 12px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .nav-toggle:hover { background: var(--bg-light); }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            color: var(--text-main);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition);
            position: relative;
            text-decoration: none;
        }
        .nav-link:hover { background: var(--bg-light); color: var(--primary); text-decoration: none; }
        .nav-link.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 2px 10px rgba(26,58,107,0.25);
        }
        .nav-link.active:hover { background: var(--primary-light); color: #fff; }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .nav-actions.mobile-visible { display: none; }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            border-radius: 50px;
            padding: 0 6px 0 16px;
            transition: var(--transition);
        }
        .search-box:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26,58,107,0.12); }
        .search-box input {
            border: none;
            background: transparent;
            padding: 8px 0;
            font-size: 0.9rem;
            color: var(--text-main);
            outline: none;
            width: 130px;
        }
        .search-box input::placeholder { color: var(--text-muted); }
        .search-box button {
            background: transparent;
            border: none;
            color: var(--text-muted);
            padding: 8px 12px;
            cursor: pointer;
            border-radius: 50%;
            transition: var(--transition);
        }
        .search-box button:hover { color: var(--primary); }
        .btn-cta-nav {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
            color: var(--text-dark);
            padding: 10px 22px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition);
            box-shadow: 0 2px 12px rgba(212,168,75,0.3);
            text-decoration: none;
            white-space: nowrap;
        }
        .btn-cta-nav:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(212,168,75,0.4); color: var(--text-dark); text-decoration: none; }

        /* ===== 文章页 Hero ===== */
        .article-hero {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            padding: 60px 0 50px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .article-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.12;
            pointer-events: none;
        }
        .article-hero .container-custom { position: relative; z-index: 1; }
        .article-hero .breadcrumb {
            background: transparent;
            padding: 0;
            margin-bottom: 16px;
        }
        .article-hero .breadcrumb-item a { color: rgba(255,255,255,0.75); }
        .article-hero .breadcrumb-item.active { color: var(--secondary); }
        .article-hero .breadcrumb-item + .breadcrumb-item::before { color: rgba(255,255,255,0.4); }
        .article-hero h1 {
            font-size: 2.2rem;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
            max-width: 860px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 0.95rem;
            color: rgba(255,255,255,0.8);
        }
        .article-meta i { margin-right: 6px; color: var(--secondary); }
        .article-meta .badge-cat {
            background: var(--secondary);
            color: var(--text-dark);
            padding: 4px 14px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.85rem;
        }

        /* ===== 文章正文 ===== */
        .article-section {
            padding: 60px 0 80px;
        }
        .article-body {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 48px 52px;
            max-width: 860px;
            margin: 0 auto;
        }
        .article-body .content p {
            margin-bottom: 1.4rem;
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-main);
        }
        .article-body .content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            margin: 2rem 0 1rem;
            padding-bottom: 8px;
            border-bottom: 2px solid var(--border-color);
        }
        .article-body .content h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-dark);
            margin: 1.6rem 0 0.8rem;
        }
        .article-body .content ul, .article-body .content ol {
            margin: 0 0 1.4rem 1.6rem;
        }
        .article-body .content li { margin-bottom: 0.5rem; }
        .article-body .content img {
            border-radius: var(--radius-sm);
            margin: 1.6rem auto;
            box-shadow: var(--shadow-sm);
        }
        .article-body .content blockquote {
            border-left: 4px solid var(--secondary);
            background: var(--bg-light);
            padding: 16px 24px;
            margin: 1.4rem 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-muted);
            font-style: italic;
        }
        .article-body .content a { color: var(--primary); text-decoration: underline; }
        .article-body .content a:hover { color: var(--primary-light); }
        .article-footer-nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid var(--border-color);
            flex-wrap: wrap;
            gap: 16px;
        }
        .article-footer-nav .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 50px;
            background: var(--bg-light);
            color: var(--text-main);
            font-weight: 500;
            transition: var(--transition);
            border: 1px solid var(--border-color);
            text-decoration: none;
        }
        .article-footer-nav .btn-back:hover { background: var(--primary); color: #fff; border-color: var(--primary); text-decoration: none; }
        .article-footer-nav .btn-share {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 50px;
            background: var(--primary);
            color: #fff;
            font-weight: 500;
            transition: var(--transition);
            text-decoration: none;
        }
        .article-footer-nav .btn-share:hover { background: var(--primary-light); transform: translateY(-2px); text-decoration: none; }

        /* ===== 文章不存在 ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 24px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            max-width: 600px;
            margin: 0 auto;
        }
        .not-found-box i { font-size: 3.5rem; color: var(--text-muted); margin-bottom: 20px; }
        .not-found-box h2 { font-size: 1.6rem; font-weight: 700; color: var(--text-dark); margin-bottom: 12px; }
        .not-found-box p { color: var(--text-muted); margin-bottom: 24px; }
        .not-found-box .btn-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 50px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            transition: var(--transition);
            text-decoration: none;
        }
        .not-found-box .btn-home:hover { background: var(--primary-light); transform: translateY(-2px); text-decoration: none; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255,255,255,0.85);
            padding: 60px 0 0;
            margin-top: 0;
        }
        .site-footer .logo { color: #fff; }
        .site-footer .logo-text span { color: var(--secondary); }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.3fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; margin-top: 14px; color: rgba(255,255,255,0.65); max-width: 340px; }
        .footer-title {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 32px;
            height: 3px;
            background: var(--secondary);
            border-radius: 4px;
        }
        .footer-links { list-style: none; padding: 0; margin: 0; }
        .footer-links li { margin-bottom: 10px; font-size: 0.9rem; }
        .footer-links a { color: rgba(255,255,255,0.7); transition: var(--transition); text-decoration: none; }
        .footer-links a:hover { color: var(--secondary); padding-left: 4px; text-decoration: none; }
        .footer-links i { width: 20px; color: var(--secondary); margin-right: 6px; }
        .footer-divider { border-color: rgba(255,255,255,0.1); margin: 0; }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom a { color: rgba(255,255,255,0.6); text-decoration: none; }
        .footer-bottom a:hover { color: var(--secondary); text-decoration: none; }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
            .article-body { padding: 36px 32px; }
            .article-hero h1 { font-size: 1.8rem; }
        }
        @media (max-width: 768px) {
            .header-inner { height: 64px; }
            .nav-toggle { display: block; }
            .nav-menu {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 20px 24px;
                box-shadow: var(--shadow-lg);
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                z-index: 999;
                gap: 8px;
            }
            .nav-menu.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
            .nav-link { width: 100%; padding: 12px 18px; font-size: 1rem; }
            .nav-actions { display: none; }
            .nav-actions.mobile-visible { display: flex; flex-direction: column; width: 100%; gap: 12px; margin-top: 12px; }
            .nav-actions.mobile-visible .search-box { width: 100%; }
            .nav-actions.mobile-visible .search-box input { width: 100%; }
            .nav-actions.mobile-visible .btn-cta-nav { width: 100%; justify-content: center; }
            .article-hero { padding: 40px 0 36px; }
            .article-hero h1 { font-size: 1.5rem; }
            .article-meta { gap: 12px; font-size: 0.85rem; }
            .article-body { padding: 24px 18px; border-radius: var(--radius-sm); }
            .article-body .content p { font-size: 0.98rem; }
            .article-body .content h2 { font-size: 1.3rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .not-found-box { padding: 48px 18px; }
        }
        @media (max-width: 520px) {
            .header-inner { padding: 0 14px; }
            .container-custom { padding: 0 14px; }
            .article-hero h1 { font-size: 1.3rem; }
            .article-body { padding: 18px 14px; }
            .article-footer-nav { flex-direction: column; align-items: stretch; }
            .article-footer-nav .btn-back, .article-footer-nav .btn-share { justify-content: center; }
            .logo-text { font-size: 1rem; }
            .logo-icon { width: 34px; height: 34px; font-size: 1.2rem; }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a3c6e;
            --primary-light: #2a5a9a;
            --primary-dark: #0f2a4f;
            --secondary: #e8a838;
            --secondary-light: #f0c060;
            --secondary-dark: #c88a20;
            --accent: #3a8fb5;
            --bg-light: #f5f7fa;
            --bg-white: #ffffff;
            --bg-dark: #0f1a2e;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #7a7a9a;
            --text-white: #ffffff;
            --border-color: #e2e6ef;
            --border-radius: 12px;
            --border-radius-sm: 8px;
            --border-radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --spacing-section: 5rem;
            --spacing-element: 2rem;
            --container-max: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

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

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

        /* ===== Container ===== */
        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* ===== Typography ===== */
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
        }

        h1 {
            font-size: 2.75rem;
            font-weight: 800;
        }

        h2 {
            font-size: 2.25rem;
            margin-bottom: 1rem;
        }

        h3 {
            font-size: 1.5rem;
        }

        h4 {
            font-size: 1.2rem;
        }

        p {
            margin-bottom: 1rem;
            color: var(--text-secondary);
        }

        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--secondary);
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 0.5rem;
        }

        .section-title {
            font-size: 2.25rem;
            font-weight: 800;
            margin-bottom: 0.75rem;
        }

        .section-desc {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 680px;
            margin: 0 auto 2.5rem auto;
        }

        .text-center .section-desc {
            margin: 0 auto 2.5rem auto;
        }

        /* ===== Header & Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 1px 12px rgba(0, 0, 0, 0.04);
            transition: var(--transition);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 1.5rem;
            height: 70px;
            gap: 1rem;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-shrink: 0;
            text-decoration: none;
            color: var(--text-primary);
        }

        .logo:hover {
            color: var(--text-primary);
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 700;
            box-shadow: 0 4px 12px rgba(26, 60, 110, 0.25);
        }

        .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            letter-spacing: 0.5px;
        }

        .logo-text span {
            color: var(--secondary);
        }

        .nav-toggle {
            display: none;
            background: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            cursor: pointer;
            padding: 0.25rem 0.5rem;
            border-radius: var(--border-radius-sm);
            transition: var(--transition);
        }

        .nav-toggle:hover {
            background: var(--bg-light);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex: 1;
            justify-content: center;
        }

        .nav-link {
            padding: 0.5rem 1.1rem;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--border-radius-sm);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(26, 60, 110, 0.06);
        }

        .nav-link.active {
            color: var(--primary);
            background: rgba(26, 60, 110, 0.08);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--secondary);
            border-radius: 4px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-shrink: 0;
        }

        .nav-actions.mobile-visible {
            display: none;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border-radius: 50px;
            padding: 0.35rem 0.35rem 0.35rem 1rem;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            max-width: 200px;
        }

        .search-box:focus-within {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(26, 60, 110, 0.1);
        }

        .search-box input {
            background: transparent;
            border: none;
            padding: 0.35rem 0;
            font-size: 0.9rem;
            color: var(--text-primary);
            width: 100%;
            min-width: 80px;
        }

        .search-box input::placeholder {
            color: var(--text-light);
        }

        .search-box button {
            background: var(--primary);
            color: #fff;
            border: none;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            font-size: 0.8rem;
        }

        .search-box button:hover {
            background: var(--primary-light);
            transform: scale(1.05);
        }

        .btn-cta-nav {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
            color: var(--text-primary) !important;
            padding: 0.5rem 1.4rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition);
            white-space: nowrap;
            box-shadow: 0 4px 16px rgba(232, 168, 56, 0.3);
        }

        .btn-cta-nav:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(232, 168, 56, 0.4);
            color: var(--text-primary) !important;
        }

        /* ===== Hero / Page Banner ===== */
        .page-banner {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            padding: 4rem 0 3.5rem 0;
            position: relative;
            overflow: hidden;
            min-height: 280px;
            display: flex;
            align-items: center;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.12;
            z-index: 0;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 60px;
            background: var(--bg-light);
            clip-path: ellipse(70% 100% at 50% 100%);
            z-index: 1;
        }

        .page-banner .container-custom {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .page-banner h1 {
            color: var(--text-white);
            font-size: 2.75rem;
            font-weight: 800;
            margin-bottom: 0.75rem;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
        }

        .page-banner p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.15rem;
            max-width: 640px;
            margin: 0 auto;
        }

        .breadcrumb-custom {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 1rem;
        }

        .breadcrumb-custom a {
            color: rgba(255, 255, 255, 0.8);
        }

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

        .breadcrumb-custom span {
            color: var(--secondary);
        }

        /* ===== Section Common ===== */
        section {
            padding: var(--spacing-section) 0;
        }

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

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

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

        .section-bg-dark h2,
        .section-bg-dark h3,
        .section-bg-dark p {
            color: var(--text-white);
        }

        .section-bg-dark .section-desc {
            color: rgba(255, 255, 255, 0.75);
        }

        /* ===== Cards ===== */
        .card {
            border: none;
            border-radius: var(--border-radius);
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            overflow: hidden;
            height: 100%;
        }

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

        .card-img-top {
            border-radius: var(--border-radius) var(--border-radius) 0 0;
            object-fit: cover;
            height: 200px;
        }

        .card-body {
            padding: 1.75rem;
        }

        .card-title {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        .card-text {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        .card .badge {
            font-size: 0.8rem;
            font-weight: 500;
            padding: 0.35rem 0.8rem;
            border-radius: 50px;
        }

        /* ===== Buttons ===== */
        .btn {
            padding: 0.6rem 1.8rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            box-shadow: 0 4px 16px rgba(26, 60, 110, 0.25);
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(26, 60, 110, 0.35);
            color: #fff;
        }

        .btn-secondary {
            background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
            color: var(--text-primary);
            box-shadow: 0 4px 16px rgba(232, 168, 56, 0.25);
        }

        .btn-secondary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(232, 168, 56, 0.35);
            color: var(--text-primary);
        }

        .btn-outline {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-lg {
            padding: 0.8rem 2.5rem;
            font-size: 1.05rem;
        }

        /* ===== Badges & Tags ===== */
        .badge-tag {
            display: inline-block;
            padding: 0.25rem 1rem;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            background: rgba(26, 60, 110, 0.08);
            color: var(--primary);
            transition: var(--transition);
        }

        .badge-tag:hover {
            background: var(--primary);
            color: #fff;
        }

        .badge-hot {
            background: #fee2e2;
            color: #dc2626;
        }

        .badge-new {
            background: #dbeafe;
            color: #2563eb;
        }

        /* ===== Step / Process ===== */
        .step-item {
            display: flex;
            gap: 1.25rem;
            padding: 1.5rem;
            background: var(--bg-white);
            border-radius: var(--border-radius);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            margin-bottom: 1rem;
        }

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

        .step-number {
            width: 48px;
            height: 48px;
            min-width: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 700;
            box-shadow: 0 4px 12px rgba(26, 60, 110, 0.2);
        }

        .step-content h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.25rem;
        }

        .step-content p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--border-radius);
            box-shadow: var(--shadow-sm);
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: var(--transition);
        }

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

        .faq-question {
            padding: 1.25rem 1.75rem;
            font-weight: 600;
            font-size: 1.05rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-primary);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }

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

        .faq-question i {
            transition: var(--transition);
            color: var(--primary-light);
        }

        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }

        .faq-answer {
            padding: 0 1.75rem 1.25rem 1.75rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary), var(--primary-light));
            padding: 4.5rem 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

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

        .cta-section .container-custom {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            color: var(--text-white);
            font-size: 2.25rem;
            font-weight: 800;
            margin-bottom: 0.75rem;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.1rem;
            max-width: 560px;
            margin: 0 auto 2rem auto;
        }

        .cta-section .btn {
            font-size: 1.05rem;
            padding: 0.85rem 2.8rem;
        }

        /* ===== Statistics ===== */
        .stat-item {
            text-align: center;
            padding: 1.5rem;
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .stat-label {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-top: 0.25rem;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 4rem 0 2rem 0;
        }

        .site-footer .logo-text {
            color: var(--text-white);
        }

        .site-footer .logo-text span {
            color: var(--secondary);
        }

        .site-footer p {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.95rem;
            max-width: 360px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 2.5rem;
        }

        .footer-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 1.25rem;
            position: relative;
            padding-bottom: 0.75rem;
        }

        .footer-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 32px;
            height: 3px;
            background: var(--secondary);
            border-radius: 4px;
        }

        .footer-links li {
            margin-bottom: 0.6rem;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.95rem;
            transition: var(--transition);
        }

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

        .footer-links i {
            width: 20px;
            color: var(--secondary);
        }

        .footer-divider {
            border: none;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin: 2rem 0 1.5rem 0;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }

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

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }

            .page-banner h1 {
                font-size: 2.25rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: 3rem;
            }

            .header-inner {
                height: 60px;
            }

            .nav-toggle {
                display: block;
            }

            .nav-menu {
                position: fixed;
                top: 60px;
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 1rem 1.5rem 1.5rem 1.5rem;
                box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
                transform: translateY(-110%);
                opacity: 0;
                transition: var(--transition);
                gap: 0.35rem;
                border-bottom: 1px solid var(--border-color);
                z-index: 1040;
                align-items: stretch;
            }

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

            .nav-link {
                padding: 0.7rem 1rem;
                font-size: 1rem;
                border-radius: var(--border-radius-sm);
            }

            .nav-link.active::after {
                display: none;
            }

            .nav-actions {
                display: none;
            }

            .nav-actions.mobile-visible {
                display: flex;
                flex-direction: column;
                margin-top: 0.75rem;
                gap: 0.75rem;
            }

            .nav-actions.mobile-visible .search-box {
                max-width: 100%;
                width: 100%;
            }

            .nav-actions.mobile-visible .btn-cta-nav {
                width: 100%;
                justify-content: center;
            }

            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.75rem;
            }
            .section-title {
                font-size: 1.75rem;
            }

            .page-banner {
                padding: 3rem 0 2.5rem 0;
                min-height: 200px;
            }

            .page-banner h1 {
                font-size: 1.8rem;
            }

            .page-banner p {
                font-size: 1rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.75rem;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 0.5rem;
                text-align: center;
            }

            .stat-number {
                font-size: 2rem;
            }

            .step-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.75rem;
            }

            .cta-section h2 {
                font-size: 1.75rem;
            }

            .card-img-top {
                height: 160px;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                padding: 0 1rem;
            }

            .logo-text {
                font-size: 1.05rem;
            }

            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 1.1rem;
            }

            .page-banner h1 {
                font-size: 1.5rem;
            }

            .container-custom {
                padding: 0 1rem;
            }

            .card-body {
                padding: 1.25rem;
            }

            .faq-question {
                padding: 1rem 1.25rem;
                font-size: 0.95rem;
            }

            .faq-answer {
                padding: 0 1.25rem 1rem 1.25rem;
            }
        }

        /* ===== Accessibility ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 2px;
        }

        /* ===== Utilities ===== */
        .mb-0 {
            margin-bottom: 0 !important;
        }
        .mt-1 {
            margin-top: 0.5rem !important;
        }
        .mt-2 {
            margin-top: 1rem !important;
        }
        .mt-3 {
            margin-top: 1.5rem !important;
        }
        .mb-2 {
            margin-bottom: 1rem !important;
        }
        .mb-3 {
            margin-bottom: 1.5rem !important;
        }
        .gap-1 {
            gap: 0.5rem;
        }
        .gap-2 {
            gap: 1rem;
        }
        .flex-wrap {
            display: flex;
            flex-wrap: wrap;
        }
        .align-center {
            align-items: center;
        }
        .text-center {
            text-align: center;
        }
        .rounded-img {
            border-radius: var(--border-radius);
        }

        /* ===== Login Guide Specific ===== */
        .guide-highlight {
            background: linear-gradient(135deg, rgba(26, 60, 110, 0.04), rgba(232, 168, 56, 0.06));
            border-left: 4px solid var(--secondary);
            padding: 1.5rem 2rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            margin: 1.5rem 0;
        }

        .method-card .card-body {
            padding: 2rem;
            text-align: center;
        }

        .method-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin: 0 auto 1rem auto;
            box-shadow: 0 4px 16px rgba(26, 60, 110, 0.2);
        }

        .method-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
        }

        .method-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 0.5rem;
        }

        .problem-list li {
            padding: 0.6rem 0;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
            font-size: 0.95rem;
            color: var(--text-secondary);
        }

        .problem-list li:last-child {
            border-bottom: none;
        }

        .problem-list li i {
            color: var(--secondary);
            margin-top: 0.2rem;
            font-size: 0.85rem;
        }

        .login-tip {
            background: var(--bg-white);
            border-radius: var(--border-radius);
            padding: 1.5rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            height: 100%;
            transition: var(--transition);
        }

        .login-tip:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .login-tip h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .login-tip h4 i {
            color: var(--secondary);
        }

        .login-tip p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        /* ===== Bootstrap Overrides ===== */
        .row {
            margin-left: -0.75rem;
            margin-right: -0.75rem;
        }

        .col,
        [class*="col-"] {
            padding-left: 0.75rem;
            padding-right: 0.75rem;
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a5fb4;
            --primary-dark: #0d3b7a;
            --primary-light: #e8f0fe;
            --secondary: #26a69a;
            --secondary-light: #e0f7f4;
            --accent: #f57c00;
            --bg: #f5f7fa;
            --bg-card: #ffffff;
            --text: #1e2a3a;
            --text-light: #5e6f8d;
            --text-white: #ffffff;
            --border: #e2e8f0;
            --border-light: #f0f2f5;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.10);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --transition: 0.30s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: var(--font);
            font-size: 1rem;
            line-height: 1.65;
            color: var(--text);
            background: var(--bg);
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            box-shadow: 0 0 0 3px rgba(26, 95, 180, 0.25);
            border-color: var(--primary);
        }
        ul {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
        }
        h1 {
            font-size: 2.8rem;
        }
        h2 {
            font-size: 2.0rem;
        }
        h3 {
            font-size: 1.4rem;
        }
        h4 {
            font-size: 1.15rem;
        }

        /* ===== Container ===== */
        .container-custom {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media(max-width:768px) {
            .container-custom {
                padding: 0 16px;
            }
            h1 {
                font-size: 2.0rem;
            }
            h2 {
                font-size: 1.6rem;
            }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            z-index: 1050;
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 2px 24px rgba(0, 0, 0, 0.07);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text);
            font-weight: 700;
            font-size: 1.25rem;
            text-decoration: none;
            flex-shrink: 0;
        }
        .logo:hover {
            color: var(--primary);
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.2rem;
            flex-shrink: 0;
        }
        .logo-text span {
            color: var(--primary);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-link {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text);
            transition: background var(--transition), color var(--transition);
            position: relative;
            text-decoration: none;
            white-space: nowrap;
        }
        .nav-link:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .nav-link.active {
            background: var(--primary);
            color: #fff;
        }
        .nav-link.active:hover {
            background: var(--primary-dark);
            color: #fff;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg);
            border-radius: 50px;
            border: 1px solid var(--border);
            overflow: hidden;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 95, 180, 0.15);
        }
        .search-box input {
            border: none;
            background: transparent;
            padding: 8px 16px;
            font-size: 0.9rem;
            min-width: 140px;
            color: var(--text);
        }
        .search-box input::placeholder {
            color: var(--text-light);
        }
        .search-box button {
            border: none;
            background: transparent;
            padding: 8px 14px;
            color: var(--text-light);
            cursor: pointer;
            transition: color var(--transition);
        }
        .search-box button:hover {
            color: var(--primary);
        }
        .btn-cta-nav {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 22px;
            background: var(--primary);
            color: #fff;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            text-decoration: none;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            white-space: nowrap;
        }
        .btn-cta-nav:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(26, 95, 180, 0.30);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--text);
            cursor: pointer;
            padding: 4px;
        }
        .mobile-visible {
            display: none;
        }

        @media(max-width:992px) {
            .nav-actions {
                display: none;
            }
            .mobile-visible {
                display: flex;
                flex-direction: column;
                gap: 12px;
                padding: 16px 20px 20px;
                width: 100%;
            }
            .mobile-visible .search-box {
                width: 100%;
            }
            .mobile-visible .search-box input {
                flex: 1;
                min-width: 0;
            }
            .mobile-visible .btn-cta-nav {
                width: 100%;
                justify-content: center;
            }
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                position: fixed;
                top: var(--header-height);
                left: 0;
                width: 100%;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                -webkit-backdrop-filter: blur(12px);
                flex-direction: column;
                padding: 12px 20px 20px;
                border-bottom: 1px solid var(--border);
                transform: translateY(-120%);
                opacity: 0;
                visibility: hidden;
                transition: transform 0.35s ease, opacity 0.35s ease, visibility 0.35s;
                box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
                max-height: 80vh;
                overflow-y: auto;
                align-items: stretch;
                gap: 4px;
            }
            .nav-menu.open {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .nav-menu .nav-link {
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                font-size: 1rem;
                text-align: center;
            }
            .nav-menu .nav-link.active {
                background: var(--primary);
                color: #fff;
            }
        }
        @media(max-width:480px) {
            .header-inner {
                padding: 0 12px;
            }
            .logo-text {
                font-size: 1.05rem;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 1rem;
            }
        }

        /* ===== Page Hero ===== */
        .page-hero {
            padding: calc(var(--header-height) + 40px) 0 60px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, #2a7fd4 100%);
            position: relative;
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.12;
            mix-blend-mode: overlay;
        }
        .page-hero .container-custom {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-hero h1 {
            color: var(--text-white);
            font-weight: 800;
            margin-bottom: 12px;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
        }
        .page-hero p {
            color: rgba(255, 255, 255, 0.88);
            font-size: 1.15rem;
            max-width: 640px;
            margin: 0 auto 20px;
        }
        .page-hero .breadcrumb-hero {
            display: flex;
            justify-content: center;
            gap: 6px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
        }
        .page-hero .breadcrumb-hero a {
            color: rgba(255, 255, 255, 0.85);
            text-decoration: none;
        }
        .page-hero .breadcrumb-hero a:hover {
            color: #fff;
            text-decoration: underline;
        }
        .page-hero .breadcrumb-hero span {
            color: rgba(255, 255, 255, 0.95);
            font-weight: 500;
        }
        @media(max-width:768px) {
            .page-hero {
                padding: calc(var(--header-height) + 24px) 0 40px;
                min-height: 240px;
            }
            .page-hero p {
                font-size: 1rem;
            }
        }

        /* ===== Section通用 ===== */
        .section-padding {
            padding: 72px 0;
        }
        .section-padding-sm {
            padding: 48px 0;
        }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            margin-bottom: 12px;
        }
        .section-title p {
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto;
            font-size: 1.05rem;
        }
        .section-title .badge-section {
            display: inline-block;
            padding: 4px 16px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 12px;
        }
        @media(max-width:768px) {
            .section-padding {
                padding: 48px 0;
            }
            .section-title {
                margin-bottom: 32px;
            }
        }

        /* ===== Cards ===== */
        .card-custom {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: transform var(--transition), box-shadow var(--transition);
            overflow: hidden;
            height: 100%;
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .card-custom .card-img-top {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
        }
        .card-custom .card-body {
            padding: 24px 20px 20px;
        }
        .card-custom .card-body h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
        }
        .card-custom .card-body p {
            color: var(--text-light);
            font-size: 0.94rem;
            margin-bottom: 12px;
        }
        .card-custom .card-body .card-tag {
            display: inline-block;
            padding: 2px 12px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 500;
        }
        .card-custom .card-footer-link {
            padding: 12px 20px 16px;
            border-top: 1px solid var(--border-light);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .card-custom .card-footer-link a {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--primary);
        }
        .card-custom .card-footer-link a i {
            transition: transform var(--transition);
        }
        .card-custom .card-footer-link a:hover i {
            transform: translateX(4px);
        }

        /* ===== Service Feature Grid ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 28px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 24px 28px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .feature-card .feature-icon {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            margin: 0 auto 16px;
            transition: background var(--transition), color var(--transition);
        }
        .feature-card:hover .feature-icon {
            background: var(--primary);
            color: #fff;
        }
        .feature-card h3 {
            font-size: 1.1rem;
            margin-bottom: 8px;
        }
        .feature-card p {
            color: var(--text-light);
            font-size: 0.92rem;
            margin-bottom: 0;
        }

        /* ===== Stats / Data Block ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 24px;
        }
        .stat-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 28px 16px 24px;
            text-align: center;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }
        .stat-item .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item .stat-number span {
            font-size: 1.2rem;
            font-weight: 600;
        }
        .stat-item .stat-label {
            color: var(--text-light);
            font-size: 0.95rem;
            margin-top: 4px;
        }

        /* ===== Flow / Steps ===== */
        .flow-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 32px 24px;
            counter-reset: step;
        }
        .flow-step {
            text-align: center;
            position: relative;
            counter-increment: step;
        }
        .flow-step::before {
            content: counter(step);
            width: 44px;
            height: 44px;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 1.2rem;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: 0 4px 14px rgba(26, 95, 180, 0.25);
        }
        .flow-step h4 {
            font-size: 1.05rem;
            margin-bottom: 6px;
        }
        .flow-step p {
            color: var(--text-light);
            font-size: 0.9rem;
            margin-bottom: 0;
        }
        .flow-step:not(:last-child)::after {
            content: '';
            position: absolute;
            top: 22px;
            right: -16px;
            width: 24px;
            height: 2px;
            background: var(--border);
        }
        @media(max-width:768px) {
            .flow-step:not(:last-child)::after {
                display: none;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            background: var(--bg-card);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            padding: 16px 20px;
            font-weight: 600;
            font-size: 1.0rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            color: var(--text);
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: var(--primary-light);
        }
        .faq-question i {
            color: var(--primary);
            font-size: 1.1rem;
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 20px 16px;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }
        .faq-answer.open {
            display: block;
        }
        .faq-answer p {
            margin-bottom: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
            border-radius: var(--radius-lg);
            padding: 56px 40px;
            text-align: center;
            color: var(--text-white);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .cta-content {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 2.0rem;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.88);
            max-width: 560px;
            margin: 0 auto 24px;
            font-size: 1.05rem;
        }
        .cta-section .btn-cta-big {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            background: #fff;
            color: var(--primary);
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            text-decoration: none;
            transition: transform var(--transition), box-shadow var(--transition);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
        }
        .cta-section .btn-cta-big:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.18);
            color: var(--primary-dark);
        }
        @media(max-width:768px) {
            .cta-section {
                padding: 36px 20px;
                border-radius: var(--radius);
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #1a2332;
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 0;
        }
        .site-footer .container-custom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 36px;
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand .logo .logo-icon {
            background: var(--primary);
        }
        .footer-brand .logo .logo-text span {
            color: #6ab0ff;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 8px;
        }
        .footer-title {
            color: #fff;
            font-size: 1.0rem;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            transition: color var(--transition);
            text-decoration: none;
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-links i {
            width: 20px;
            color: var(--primary);
            margin-right: 4px;
        }
        .footer-divider {
            border: none;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin: 32px 0 20px;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding-bottom: 24px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        @media(max-width:992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media(max-width:640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== Bootstrap Overrides ===== */
        .btn-primary-custom {
            background: var(--primary);
            border: none;
            border-radius: 50px;
            padding: 10px 28px;
            font-weight: 600;
            color: #fff;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
        }
        .btn-primary-custom:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(26, 95, 180, 0.30);
            color: #fff;
        }
        .btn-outline-custom {
            background: transparent;
            border: 2px solid var(--primary);
            border-radius: 50px;
            padding: 8px 24px;
            font-weight: 600;
            color: var(--primary);
            transition: background var(--transition), color var(--transition), transform var(--transition);
        }
        .btn-outline-custom:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-1px);
        }

        /* ===== Misc ===== */
        .bg-light-custom {
            background: var(--bg);
        }
        .bg-white-custom {
            background: #fff;
        }
        .text-primary-custom {
            color: var(--primary);
        }
        .gap-row {
            gap: 28px 0;
        }
        .mb-section {
            margin-bottom: 48px;
        }
        .shadow-soft {
            box-shadow: var(--shadow);
        }
        .rounded-custom {
            border-radius: var(--radius);
        }

        /* ===== Responsive Extra ===== */
        @media(max-width:576px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .flow-steps {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .card-custom .card-img-top {
                height: 160px;
            }
        }
        @media(max-width:400px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .flow-steps {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Accessibility ===== */
        .skip-link {
            position: absolute;
            top: -100%;
            left: 0;
            background: var(--primary);
            color: #fff;
            padding: 8px 16px;
            z-index: 10000;
            font-weight: 600;
        }
        .skip-link:focus {
            top: 0;
        }
        :focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .nav-link:focus-visible,
        .btn-cta-nav:focus-visible,
        .logo:focus-visible {
            outline-offset: 4px;
        }