/* roulang page: index */
:root {
            --primary: #123C3A;
            --primary-dark: #0E2C2A;
            --accent: #C8A15A;
            --cta: #D8582B;
            --cta-hover: #B94A25;
            --bg: #F6F4EF;
            --card-bg: #FFFFFF;
            --text-primary: #1D2524;
            --text-secondary: #5C6663;
            --text-muted: #8A938F;
            --border: #E2DED5;
            --focus-ring: rgba(200,161,90,0.4);
            --success: #2A7A5C;
            --warning: #C5532B;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 4px;
            --shadow-sm: 0 1px 2px rgba(29,37,36,0.06), 0 8px 24px rgba(18,60,58,0.10);
            --shadow-hover: 0 12px 32px rgba(18,60,58,0.16);
            --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', 'Courier New', monospace;
            --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *, *::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: 15px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible {
            outline: 3px solid var(--focus-ring);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== 顶部公告条 ========== */
        .top-notice {
            background-color: var(--primary);
            color: #E8EDEB;
            font-size: 13px;
            text-align: center;
            padding: 8px 16px;
            letter-spacing: 0.02em;
            line-height: 1.5;
        }

        .top-notice strong {
            color: var(--accent);
            font-weight: 600;
        }

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--card-bg);
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(18,60,58,0.10);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-icon {
            width: 38px;
            height: 38px;
            background: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .brand-icon svg {
            width: 20px;
            height: 20px;
            fill: var(--accent);
        }

        .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }

        .nav-menu a {
            font-size: 14.5px;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 4px 0;
            transition: color var(--transition);
        }

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

        .nav-menu a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-menu a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 1px;
        }

        .nav-cta {
            flex-shrink: 0;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            flex-shrink: 0;
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2.5px;
            background: var(--primary);
            margin: 5px 0;
            border-radius: 2px;
            transition: all var(--transition);
        }

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 22px;
            border-radius: var(--radius-btn);
            font-size: 14.5px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            line-height: 1.4;
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: #FFFFFF;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--accent);
        }

        .btn-outline:hover {
            background: rgba(18,60,58,0.06);
            color: var(--primary);
            transform: translateY(-1px);
        }

        .btn-cta {
            background: var(--cta);
            color: #FFFFFF;
        }

        .btn-cta:hover {
            background: var(--cta-hover);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(216,88,43,0.30);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
        }

        .btn-lg {
            padding: 14px 28px;
            font-size: 15.5px;
        }

        /* ========== 通用 Section ========== */
        .section {
            padding: 72px 0;
        }

        .section-alt {
            background: #EFECE5;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.25;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }

        .section-subtitle {
            font-size: 15.5px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 680px;
            margin-bottom: 36px;
        }

        .section-header-center {
            text-align: center;
            margin-bottom: 44px;
        }

        .section-header-center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== 板块1：数据快照条 ========== */
        .stats-bar {
            background: #F1EFE8;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 18px 0;
        }

        .stats-grid {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }

        .stat-item {
            flex: 1;
            text-align: center;
            padding: 0 12px;
        }

        .stat-value {
            font-family: var(--font-mono);
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.04em;
        }

        .stat-label {
            font-size: 12.5px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        .stat-divider {
            width: 1px;
            height: 32px;
            background: var(--border);
            flex-shrink: 0;
        }

        /* ========== 板块2：Hero ========== */
        .hero-section {
            background: linear-gradient(180deg, #FAF9F6 0%, var(--bg) 100%);
            padding: 56px 0 64px;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: radial-gradient(circle at 85% 20%, rgba(200,161,90,0.06) 0%, transparent 40%),
                              radial-gradient(circle at 10% 80%, rgba(18,60,58,0.04) 0%, transparent 35%);
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 7fr 5fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-content h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.22;
            letter-spacing: 0.005em;
            margin-bottom: 18px;
        }

        .hero-content h1 .highlight {
            color: var(--cta);
            border-bottom: 3px solid var(--accent);
            padding-bottom: 2px;
        }

        .hero-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 520px;
            margin-bottom: 28px;
        }

        .hero-buttons {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }

        .hero-trust {
            display: flex;
            gap: 18px;
            flex-wrap: wrap;
            padding-top: 18px;
            border-top: 1px solid var(--border);
        }

        .trust-item {
            display: flex;
            align-items: center;
            gap: 7px;
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .trust-item svg {
            width: 16px;
            height: 16px;
            fill: var(--success);
            flex-shrink: 0;
        }

        .hero-image {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
        }

        .hero-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            border-radius: var(--radius-card);
        }

        .hero-image-badge {
            position: absolute;
            bottom: 16px;
            left: 16px;
            background: rgba(18,60,58,0.92);
            color: #FFFFFF;
            font-size: 12px;
            padding: 7px 14px;
            border-radius: var(--radius-badge);
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* ========== 板块3：场景入口 ========== */
        .scene-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .scene-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 28px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: all var(--transition);
            box-shadow: 0 1px 2px rgba(29,37,36,0.04);
            cursor: pointer;
        }

        .scene-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-sm);
            border-color: var(--accent);
        }

        .scene-card.featured {
            grid-row: span 1;
            min-height: 120px;
        }

        .scene-card-left {
            display: flex;
            align-items: center;
            gap: 14px;
            min-width: 0;
        }

        .scene-card-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(18,60,58,0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .scene-card-icon svg {
            width: 22px;
            height: 22px;
            fill: var(--primary);
        }

        .scene-card-info h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .scene-card-info p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .scene-link {
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 4px;
            flex-shrink: 0;
            transition: color var(--transition);
        }

        .scene-link:hover {
            color: var(--cta);
        }

        .scene-link svg {
            width: 14px;
            height: 14px;
            transition: transform var(--transition);
        }

        .scene-card:hover .scene-link svg {
            transform: translateX(3px);
        }

        /* ========== 板块4：开户流程四步 ========== */
        .process-timeline {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            position: relative;
        }

        .process-timeline::before {
            content: '';
            position: absolute;
            top: 32px;
            left: 12.5%;
            right: 12.5%;
            height: 2px;
            background: var(--border);
        }

        .process-step {
            text-align: center;
            padding: 0 16px;
            position: relative;
            z-index: 1;
        }

        .process-step-num {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--card-bg);
            border: 2px solid var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin: 0 auto 14px;
            transition: all var(--transition);
        }

        .process-step:hover .process-step-num {
            background: var(--primary);
            color: #FFFFFF;
            border-color: var(--primary);
            transform: scale(1.05);
        }

        .process-step h3 {
            font-size: 15.5px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .process-step p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.55;
            max-width: 200px;
            margin: 0 auto;
        }

        /* ========== 板块5：风控与资金安全 ========== */
        .risk-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .risk-list {
            list-style: none;
            margin-top: 16px;
        }

        .risk-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 14px 0;
            border-bottom: 1px solid var(--border);
        }

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

        .risk-list-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(42,122,92,0.10);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .risk-list-icon svg {
            width: 14px;
            height: 14px;
            fill: var(--success);
        }

        .risk-list-text h4 {
            font-size: 14.5px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 3px;
        }

        .risk-list-text p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .risk-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            position: relative;
        }

        .risk-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            border-radius: var(--radius-card);
        }

        /* ========== 板块6：费用与倍数说明 ========== */
        .fee-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .fee-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 24px 22px;
            transition: all var(--transition);
        }

        .fee-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-sm);
        }

        .fee-card h3 {
            font-size: 15.5px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .fee-card h3 svg {
            width: 18px;
            height: 18px;
            fill: var(--accent);
        }

        .fee-card ul {
            list-style: none;
            margin-top: 8px;
        }

        .fee-card ul li {
            font-size: 13.5px;
            color: var(--text-secondary);
            padding: 7px 0;
            padding-left: 18px;
            position: relative;
            line-height: 1.6;
        }

        .fee-card ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 14px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
        }

        .fee-card .fee-note {
            font-size: 12.5px;
            color: var(--text-muted);
            margin-top: 10px;
            padding-top: 10px;
            border-top: 1px dashed var(--border);
        }

        /* ========== 板块7：交易软件展示 ========== */
        .software-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .software-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .software-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            border-radius: var(--radius-card);
        }

        .software-features {
            list-style: none;
        }

        .software-features li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 13px 0;
        }

        .software-feature-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: rgba(18,60,58,0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .software-feature-icon svg {
            width: 16px;
            height: 16px;
            fill: var(--primary);
        }

        .software-features h4 {
            font-size: 14.5px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 3px;
        }

        .software-features p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ========== 板块8：最新资讯 CMS ========== */
        .news-layout {
            display: grid;
            grid-template-columns: 300px 1fr;
            gap: 36px;
        }

        .news-header {
            align-self: start;
        }

        .news-header .section-title {
            margin-bottom: 10px;
        }

        .news-header p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .news-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
        }

        .news-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-sm);
            border-color: var(--accent);
        }

        .news-card-img {
            height: 150px;
            overflow: hidden;
            background: #EDE9E0;
        }

        .news-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .news-card-body {
            padding: 18px 18px 16px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-card-badge {
            font-size: 11.5px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(18,60,58,0.07);
            padding: 3px 10px;
            border-radius: var(--radius-badge);
            display: inline-block;
            margin-bottom: 8px;
            align-self: flex-start;
            letter-spacing: 0.03em;
        }

        .news-card-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card-title a {
            color: var(--text-primary);
        }

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

        .news-card-excerpt {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
            flex: 1;
        }

        .news-card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: var(--text-muted);
            border-top: 1px solid var(--border);
            padding-top: 10px;
        }

        .news-card-meta .arrow {
            color: var(--primary);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 3px;
            font-size: 12.5px;
        }

        .news-empty {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px dashed var(--border);
            padding: 60px 24px;
            text-align: center;
        }

        .news-empty-icon {
            font-size: 42px;
            color: var(--text-muted);
            margin-bottom: 12px;
        }

        .news-empty p {
            font-size: 14.5px;
            color: var(--text-muted);
        }

        .news-more-link {
            margin-top: 20px;
            text-align: right;
        }

        .news-more-link a {
            font-size: 13.5px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .news-more-link a:hover {
            color: var(--cta);
        }

        /* ========== 板块9：FAQ ========== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 10px;
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: var(--accent);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 20px;
            cursor: pointer;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-size: 14.5px;
            font-weight: 600;
            color: var(--text-primary);
            transition: color var(--transition);
        }

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

        .faq-question-number {
            font-family: var(--font-mono);
            font-size: 12.5px;
            color: var(--accent);
            font-weight: 700;
            margin-right: 8px;
            flex-shrink: 0;
        }

        .faq-question-text {
            flex: 1;
        }

        .faq-arrow {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            transition: transform var(--transition);
        }

        .faq-arrow svg {
            width: 100%;
            height: 100%;
            fill: var(--text-muted);
            transition: fill var(--transition);
        }

        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
        }

        .faq-item.open .faq-arrow svg {
            fill: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .faq-item.open .faq-answer {
            max-height: 280px;
        }

        .faq-answer-inner {
            padding: 0 20px 18px 50px;
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== 板块10：新手开户条件 ========== */
        .guide-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .guide-checklist {
            list-style: none;
            counter-reset: guide-counter;
        }

        .guide-checklist li {
            counter-increment: guide-counter;
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 14px 0;
            border-bottom: 1px solid var(--border);
        }

        .guide-checklist li:last-child {
            border-bottom: none;
        }

        .guide-num {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary);
            color: #FFFFFF;
            font-family: var(--font-mono);
            font-size: 13px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            margin-top: 1px;
        }

        .guide-checklist h4 {
            font-size: 14.5px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 3px;
        }

        .guide-checklist p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .guide-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
        }

        .guide-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 14px;
        }

        .guide-card ul {
            list-style: none;
        }

        .guide-card ul li {
            font-size: 13.5px;
            color: var(--text-secondary);
            padding: 8px 0;
            padding-left: 20px;
            position: relative;
            line-height: 1.65;
        }

        .guide-card ul li::before {
            content: '›';
            position: absolute;
            left: 0;
            top: 8px;
            font-size: 16px;
            color: var(--accent);
            font-weight: 700;
        }

        /* ========== 板块11：帮助中心入口 ========== */
        .help-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .help-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 28px 24px;
            display: flex;
            align-items: center;
            gap: 16px;
            transition: all var(--transition);
        }

        .help-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-sm);
            transform: translateY(-2px);
        }

        .help-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(200,161,90,0.10);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .help-icon svg {
            width: 24px;
            height: 24px;
            fill: var(--accent);
        }

        .help-info h3 {
            font-size: 15.5px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .help-info p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* ========== 板块12：合作支持资质 ========== */
        .coop-bar {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 36px;
            flex-wrap: wrap;
        }

        .coop-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            font-size: 12.5px;
            color: var(--text-muted);
            font-weight: 500;
            letter-spacing: 0.02em;
        }

        .coop-badge {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--card-bg);
            border: 1.5px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
        }

        .coop-item:hover .coop-badge {
            border-color: var(--accent);
            transform: translateY(-3px);
            box-shadow: var(--shadow-sm);
        }

        .coop-badge svg {
            width: 26px;
            height: 26px;
            fill: var(--primary);
        }

        /* ========== 板块13：合规声明与风险提示 ========== */
        .compliance-bar {
            background: #F1EFE8;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            display: flex;
            align-items: flex-start;
            gap: 16px;
        }

        .compliance-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(197,83,43,0.10);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .compliance-icon svg {
            width: 18px;
            height: 18px;
            fill: var(--warning);
        }

        .compliance-text {
            flex: 1;
        }

        .compliance-text h4 {
            font-size: 14.5px;
            font-weight: 600;
            color: var(--warning);
            margin-bottom: 6px;
        }

        .compliance-text p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== 板块14：底部转化区 ========== */
        .cta-bottom {
            background: var(--primary);
            padding: 64px 0;
            text-align: center;
        }

        .cta-bottom h2 {
            font-size: 28px;
            font-weight: 700;
            color: #FFFFFF;
            line-height: 1.3;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }

        .cta-bottom p {
            font-size: 15px;
            color: rgba(255,255,255,0.70);
            max-width: 520px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

        .cta-bottom-buttons {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .cta-bottom .btn-outline {
            color: #FFFFFF;
            border-color: var(--accent);
        }

        .cta-bottom .btn-outline:hover {
            background: rgba(200,161,90,0.12);
            color: #FFFFFF;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0A2A28;
            color: rgba(255,255,255,0.70);
            padding: 52px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-brand h3 {
            font-size: 17px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(255,255,255,0.60);
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 13px;
            color: rgba(255,255,255,0.60);
            transition: color var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.10);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom p {
            font-size: 12.5px;
            color: rgba(255,255,255,0.45);
        }

        .footer-bottom a {
            font-size: 12.5px;
            color: rgba(255,255,255,0.45);
        }

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

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-content h1 {
                font-size: 30px;
            }
            .risk-grid,
            .software-grid,
            .guide-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .process-timeline {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .process-timeline::before {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: var(--card-bg);
                flex-direction: column;
                padding: 16px 24px 20px;
                gap: 0;
                box-shadow: 0 12px 32px rgba(18,60,58,0.12);
                border-bottom: 1px solid var(--border);
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu li {
                width: 100%;
            }
            .nav-menu a {
                display: block;
                padding: 12px 0;
                border-bottom: 1px solid var(--border);
                font-size: 14.5px;
            }
            .nav-menu li:last-child a {
                border-bottom: none;
            }
            .nav-toggle {
                display: block;
            }
            .nav-cta {
                display: none;
            }
            .hero-content h1 {
                font-size: 26px;
            }
            .hero-desc {
                font-size: 14.5px;
            }
            .stats-grid {
                flex-wrap: wrap;
                gap: 12px;
            }
            .stat-divider {
                display: none;
            }
            .stat-item {
                flex: 1 1 30%;
                min-width: 90px;
            }
            .scene-grid,
            .fee-grid,
            .help-grid {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .process-timeline {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .cta-bottom h2 {
                font-size: 22px;
            }
            .coop-bar {
                gap: 20px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            body {
                font-size: 14px;
            }
            .section {
                padding: 36px 0;
            }
            .section-title {
                font-size: 22px;
            }
            .hero-content h1 {
                font-size: 23px;
                line-height: 1.28;
            }
            .hero-buttons .btn,
            .cta-bottom-buttons .btn {
                width: 100%;
            }
            .btn {
                font-size: 13.5px;
                padding: 10px 18px;
            }
            .faq-question {
                font-size: 13.5px;
                padding: 14px 16px;
            }
            .faq-answer-inner {
                padding: 0 16px 16px 36px;
            }
            .compliance-bar {
                flex-direction: column;
            }
            .news-card-img {
                height: 130px;
            }
            .stats-bar {
                padding: 12px 0;
            }
            .stat-value {
                font-size: 15px;
            }
            .stat-label {
                font-size: 11px;
            }
        }

/* roulang page: article */
:root {
            --primary: #123C3A;
            --primary-dark: #0E2C2A;
            --accent: #C8A15A;
            --cta: #D8582B;
            --cta-hover: #B94A25;
            --bg: #F6F4EF;
            --card-bg: #FFFFFF;
            --text-primary: #1D2524;
            --text-secondary: #5C6663;
            --text-muted: #8A938F;
            --border: #E2DED5;
            --focus-ring: rgba(200,161,90,0.4);
            --success: #2A7A5C;
            --warning: #C5532B;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 4px;
            --shadow-sm: 0 1px 2px rgba(29,37,36,0.06), 0 8px 24px rgba(18,60,58,0.10);
            --shadow-hover: 0 12px 32px rgba(18,60,58,0.16);
            --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', 'Courier New', monospace;
            --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            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: 15px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible {
            outline: 3px solid var(--focus-ring);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--card-bg);
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(18,60,58,0.10);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-icon {
            width: 38px;
            height: 38px;
            background: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .brand-icon svg {
            width: 20px;
            height: 20px;
            fill: var(--accent);
        }

        .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
        }

        .nav-menu a {
            font-size: 14.5px;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 4px 0;
            transition: color var(--transition);
            text-decoration: none;
        }

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

        .nav-menu a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-menu a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 1px;
        }

        .nav-cta {
            flex-shrink: 0;
            margin-left: 24px;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            flex-shrink: 0;
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2.5px;
            background: var(--primary);
            margin: 5px 0;
            border-radius: 2px;
            transition: all var(--transition);
        }

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }

        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 22px;
            border-radius: var(--radius-btn);
            font-size: 14.5px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            line-height: 1.4;
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: #FFFFFF;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--accent);
        }

        .btn-outline:hover {
            background: rgba(18,60,58,0.06);
            color: var(--primary);
            transform: translateY(-1px);
        }

        .btn-cta {
            background: var(--cta);
            color: #FFFFFF;
        }

        .btn-cta:hover {
            background: var(--cta-hover);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(216,88,43,0.22);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 13.5px;
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .breadcrumb-custom li {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb-custom li + li::before {
            content: '/';
            color: var(--text-muted);
            margin-right: 8px;
        }

        .breadcrumb-custom a {
            color: var(--text-secondary);
            text-decoration: none;
        }

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

        /* ========== 文章页通用 ========== */
        .article-page {
            padding: 48px 0 0;
        }

        .section-spacing {
            padding: 48px 0;
        }

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

        .section-bg-gray {
            background: #EFECE6;
        }

        .section-header {
            margin-bottom: 32px;
        }

        .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.25;
            margin-bottom: 8px;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0;
        }

        .badge {
            display: inline-block;
            padding: 6px 12px;
            border-radius: var(--radius-badge);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.03em;
            line-height: 1.4;
        }

        .badge-category {
            background: rgba(200,161,90,0.12);
            color: var(--primary);
            border: 1px solid rgba(200,161,90,0.4);
        }

        .badge-time {
            background: rgba(18,60,58,0.08);
            color: var(--text-secondary);
            border: 1px solid var(--border);
        }

        .hover-card {
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
        }

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

        /* 文章顶部区 */
        .article-topbar {
            padding: 24px 0 0;
        }

        .article-topbar .category-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-top: 16px;
        }

        .article-hero {
            padding: 32px 0 24px;
        }

        .article-hero h1 {
            font-size: 34px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.25;
            margin-bottom: 16px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px 20px;
            margin-bottom: 24px;
            font-size: 13px;
            color: var(--text-secondary);
        }

        .article-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-cover {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            margin-bottom: 8px;
        }

        .article-cover img {
            width: 100%;
            object-fit: cover;
            aspect-ratio: 16/9;
        }

        /* 正文阅读区 */
        .article-reading {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-sm);
            padding: 36px 40px;
            border: 1px solid var(--border);
        }

        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            margin: 28px 0 12px;
            line-height: 1.3;
        }

        .article-content h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--primary);
            margin: 24px 0 10px;
            line-height: 1.35;
        }

        .article-content h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            margin: 20px 0 8px;
        }

        .article-content p {
            margin-bottom: 16px;
            color: var(--text-primary);
            line-height: 1.75;
        }

        .article-content ul, .article-content ol {
            margin: 0 0 16px 24px;
            padding-left: 0;
        }

        .article-content li {
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .article-content blockquote {
            margin: 20px 0;
            padding: 16px 20px;
            border-left: 3px solid var(--accent);
            background: rgba(200,161,90,0.08);
            border-radius: 0 var(--radius-btn) var(--radius-btn) 0;
            color: var(--text-secondary);
        }

        .article-content blockquote p {
            margin-bottom: 0;
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
            font-size: 14px;
        }

        .article-content table th,
        .article-content table td {
            border: 1px solid var(--border);
            padding: 10px 12px;
            text-align: left;
            vertical-align: top;
        }

        .article-content table th {
            background: rgba(18,60,58,0.05);
            color: var(--primary);
            font-weight: 600;
        }

        .article-content img {
            border-radius: var(--radius-card);
            margin: 20px 0;
        }

        /* 相关推荐 */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .relate-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

        .relate-card .card-image {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: #EFECE6;
        }

        .relate-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .relate-card .card-body {
            padding: 18px 20px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            flex: 1;
        }

        .relate-card .card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.35;
            margin: 0;
        }

        .relate-card .card-title a {
            color: var(--primary);
            text-decoration: none;
        }

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

        .relate-card .card-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .relate-card .card-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--text-muted);
            border-top: 1px solid var(--border);
            padding-top: 12px;
            margin-top: auto;
        }

        /* 返回入口 */
        .back-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
            padding: 32px 0;
        }

        /* 风险提示条 */
        .risk-disclaimer {
            background: #EFECE6;
            border-left: 4px solid var(--warning);
            border-radius: var(--radius-btn);
            padding: 20px 24px;
            color: var(--text-secondary);
        }

        .risk-disclaimer strong {
            color: var(--warning);
        }

        /* 最新资讯列表 */
        .latest-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .latest-list li {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding: 14px 0;
            border-bottom: 1px solid var(--border);
        }

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

        .latest-list .news-title {
            font-size: 15px;
            font-weight: 500;
            color: var(--primary);
            text-decoration: none;
            flex: 1;
        }

        .latest-list .news-title:hover {
            color: var(--accent);
        }

        .latest-list .news-time {
            font-size: 13px;
            color: var(--text-muted);
            white-space: nowrap;
        }

        .empty-state {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-muted);
        }

        .empty-state .empty-icon {
            font-size: 40px;
            margin-bottom: 12px;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--primary);
            color: #F0EEE9;
            padding: 48px 0 0;
            margin-top: 48px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255,255,255,0.15);
        }

        .footer-brand h3 {
            font-size: 20px;
            color: #FFFFFF;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(240,238,233,0.75);
            line-height: 1.6;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }

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

        .footer-col li {
            margin-bottom: 10px;
        }

        .footer-col a {
            color: rgba(240,238,233,0.75);
            text-decoration: none;
            font-size: 14px;
            transition: color var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            padding: 20px 0 24px;
            font-size: 13px;
            color: rgba(240,238,233,0.6);
        }

        .footer-bottom a {
            color: rgba(240,238,233,0.6);
            text-decoration: none;
        }

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

        /* ========== 响应式 ========== */
        @media (max-width: 992px) {
            .nav-toggle {
                display: block;
            }

            .nav-menu {
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: var(--card-bg);
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 10px 24px rgba(18,60,58,0.12);
                padding: 12px 24px;
                display: none;
            }

            .nav-menu.open {
                display: flex;
            }

            .nav-menu li {
                width: 100%;
            }

            .nav-menu a {
                display: block;
                padding: 12px 0;
                border-bottom: 1px solid var(--border);
            }

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

            .nav-cta {
                display: none;
            }

            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .article-hero h1 {
                font-size: 28px;
            }

            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

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

            .article-page {
                padding: 32px 0 0;
            }

            .section-spacing {
                padding: 32px 0;
            }

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

            .article-reading {
                padding: 24px 20px;
            }

            .article-hero h1 {
                font-size: 24px;
            }

            .section-title {
                font-size: 22px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

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

        @media (max-width: 576px) {
            .nav-wrapper {
                height: 60px;
            }

            .nav-menu {
                top: 60px;
            }

            .brand-text {
                font-size: 16px;
            }

            .article-hero h1 {
                font-size: 22px;
            }

            .btn {
                width: 100%;
            }

            .back-actions .btn {
                width: auto;
            }

            .latest-list li {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #123C3A;
            --primary-dark: #0E2C2A;
            --accent: #C8A15A;
            --cta: #D8582B;
            --cta-hover: #B94A25;
            --bg: #F6F4EF;
            --card-bg: #FFFFFF;
            --text-primary: #1D2524;
            --text-secondary: #5C6663;
            --text-muted: #8A938F;
            --border: #E2DED5;
            --focus-ring: rgba(200,161,90,0.4);
            --success: #2A7A5C;
            --warning: #C5532B;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 4px;
            --shadow-sm: 0 1px 2px rgba(29,37,36,0.06), 0 8px 24px rgba(18,60,58,0.10);
            --shadow-hover: 0 12px 32px rgba(18,60,58,0.16);
            --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', 'Courier New', monospace;
            --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible {
            outline: 3px solid var(--focus-ring);
            outline-offset: 2px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--card-bg);
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(18,60,58,0.10);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-icon {
            width: 38px;
            height: 38px;
            background: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .brand-icon svg {
            width: 20px;
            height: 20px;
            fill: var(--accent);
        }
        .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-menu a {
            font-size: 14.5px;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 4px 0;
            transition: color var(--transition);
        }
        .nav-menu a:hover {
            color: var(--primary);
        }
        .nav-menu a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-menu a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 1px;
        }
        .nav-cta {
            flex-shrink: 0;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            flex-shrink: 0;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2.5px;
            background: var(--primary);
            margin: 5px 0;
            border-radius: 2px;
            transition: all var(--transition);
        }
        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }
        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 22px;
            border-radius: var(--radius-btn);
            font-size: 14.5px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            line-height: 1.4;
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #FFFFFF;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--accent);
        }
        .btn-outline:hover {
            background: rgba(18,60,58,0.06);
            color: var(--primary-dark);
            border-color: var(--primary);
        }
        .btn-cta {
            background: var(--cta);
            color: #FFFFFF;
        }
        .btn-cta:hover {
            background: var(--cta-hover);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
        }
        /* ========== 面包屑 ========== */
        .breadcrumb-wrap {
            background: var(--bg);
            padding: 16px 0;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb li + li::before {
            content: '>';
            color: var(--text-muted);
            margin-right: 2px;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }
        /* ========== 分类页通用 ========== */
        .section {
            padding: 72px 0;
        }
        .section-alt {
            background: var(--card-bg);
        }
        .section-head {
            margin-bottom: 40px;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.25;
            margin-bottom: 12px;
        }
        .section-sub {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 720px;
        }
        .text-center {
            text-align: center;
        }
        .text-center .section-sub {
            margin-left: auto;
            margin-right: auto;
        }
        /* ========== 分类 H1 区 ========== */
        .category-hero {
            background: var(--bg);
            padding: 48px 0 32px;
        }
        .category-hero h1 {
            font-size: 34px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.25;
            margin: 16px 0 12px;
        }
        .category-hero .lead {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 780px;
            line-height: 1.7;
        }
        /* ========== 流程总览卡 ========== */
        .process-overview {
            background: var(--card-bg);
        }
        .process-steps {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
            position: relative;
        }
        .process-steps::before {
            content: '';
            position: absolute;
            top: 24px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: var(--border);
            z-index: 1;
        }
        .process-step {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 22px 16px 18px;
            text-align: center;
            position: relative;
            z-index: 2;
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .process-step:hover {
            box-shadow: var(--shadow-sm);
            transform: translateY(-4px);
        }
        .step-num {
            width: 40px;
            height: 40px;
            margin: 0 auto 14px;
            background: var(--primary);
            color: #FFFFFF;
            font-weight: 700;
            font-size: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            border: 2px solid var(--accent);
        }
        .step-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .step-desc {
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        /* ========== 开户条件 ========== */
        .eligibility-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .eligibility-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-sm);
        }
        .eligibility-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .eligibility-card h3 .icon {
            width: 30px;
            height: 30px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(18,60,58,0.08);
            font-size: 16px;
        }
        .eligibility-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .eligibility-list li {
            padding: 10px 0 10px 28px;
            position: relative;
            font-size: 15px;
            color: var(--text-primary);
            border-bottom: 1px dashed var(--border);
        }
        .eligibility-list li:last-child {
            border-bottom: none;
        }
        .eligibility-list li::before {
            content: '✔';
            position: absolute;
            left: 0;
            color: var(--success);
            font-weight: 700;
        }
        .eligibility-list.prohibited li::before {
            content: '✕';
            color: var(--warning);
        }
        /* ========== 所需材料 ========== */
        .materials-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .material-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            display: flex;
            align-items: flex-start;
            gap: 16px;
            transition: box-shadow var(--transition);
        }
        .material-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .material-icon {
            width: 42px;
            height: 42px;
            background: rgba(200,161,90,0.12);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: var(--accent);
            font-size: 20px;
            font-weight: 700;
        }
        .material-info h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 6px;
        }
        .material-info p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }
        /* ========== FAQ ========== */
        .faq-section {
            background: var(--card-bg);
        }
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 20px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            text-align: left;
            transition: color var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(18,60,58,0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            transition: transform var(--transition);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            background: var(--bg);
            border-radius: 0 0 var(--radius-card) var(--radius-card);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 16px 24px;
            font-size: 14.5px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        /* ========== 相关文章 ========== */
        .related-articles {
            background: var(--bg);
        }
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-bottom: 28px;
        }
        .article-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), transform var(--transition);
            display: flex;
            flex-direction: column;
        }
        .article-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--accent);
        }
        .article-badge {
            display: inline-block;
            font-size: 12px;
            color: var(--accent);
            background: rgba(200,161,90,0.12);
            padding: 4px 10px;
            border-radius: var(--radius-badge);
            margin-bottom: 14px;
            align-self: flex-start;
        }
        .article-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .article-card p {
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.6;
            flex: 1;
        }
        .article-card time {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 14px;
            display: block;
        }
        .empty-state {
            text-align: center;
            padding: 40px 20px;
            background: var(--card-bg);
            border: 1px dashed var(--border);
            border-radius: var(--radius-card);
            color: var(--text-muted);
            font-size: 15px;
        }
        .section-more {
            text-align: center;
        }
        .section-more a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            border-bottom: 1px solid var(--accent);
            padding-bottom: 2px;
        }
        .section-more a:hover {
            color: var(--accent);
            border-color: var(--primary);
        }
        /* ========== 风险提示条 ========== */
        .risk-banner {
            background: #F2EFE8;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 32px 0;
        }
        .risk-banner-inner {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            max-width: 960px;
            margin: 0 auto;
        }
        .risk-icon {
            width: 42px;
            height: 42px;
            background: var(--warning);
            color: #FFFFFF;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            flex-shrink: 0;
        }
        .risk-text {
            font-size: 14px;
            color: var(--text-primary);
            line-height: 1.7;
        }
        .risk-text strong {
            color: var(--warning);
        }
        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--primary);
            color: rgba(255,255,255,0.75);
            padding: 64px 0 28px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 13.5px;
            color: rgba(255,255,255,0.6);
            line-height: 1.7;
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 13.5px;
            color: rgba(255,255,255,0.65);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.12);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12.5px;
            color: rgba(255,255,255,0.5);
        }
        .footer-bottom a {
            color: rgba(255,255,255,0.5);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        /* ========== 响应式 ========== */
        @media (max-width: 992px) {
            .nav-menu {
                gap: 18px;
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps::before {
                display: none;
            }
            .eligibility-wrap {
                grid-template-columns: 1fr;
            }
            .articles-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                position: fixed;
                top: 68px;
                left: 0;
                right: 0;
                background: var(--card-bg);
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
                gap: 14px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-sm);
                transform: translateY(-120%);
                transition: transform var(--transition);
                z-index: 99;
            }
            .nav-menu.open {
                transform: translateY(0);
            }
            .nav-cta {
                margin-left: auto;
            }
            .section {
                padding: 48px 0;
            }
            .category-hero h1 {
                font-size: 26px;
            }
            .section-title {
                font-size: 22px;
            }
            .materials-grid {
                grid-template-columns: 1fr;
            }
            .articles-grid {
                grid-template-columns: 1fr;
            }
            .process-steps {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .risk-banner-inner {
                flex-direction: column;
            }
        }
        @media (max-width: 576px) {
            .container {
                padding: 0 18px;
            }
            .category-hero h1 {
                font-size: 22px;
            }
            .section-title {
                font-size: 20px;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .nav-cta .btn {
                width: auto;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }
            .eligibility-card {
                padding: 20px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #123C3A;
            --primary-dark: #0E2C2A;
            --accent: #C8A15A;
            --cta: #D8582B;
            --cta-hover: #B94A25;
            --bg: #F6F4EF;
            --card-bg: #FFFFFF;
            --text-primary: #1D2524;
            --text-secondary: #5C6663;
            --text-muted: #8A938F;
            --border: #E2DED5;
            --focus-ring: rgba(200,161,90,0.4);
            --success: #2A7A5C;
            --warning: #C5532B;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 4px;
            --shadow-sm: 0 1px 2px rgba(29,37,36,0.06), 0 8px 24px rgba(18,60,58,0.10);
            --shadow-hover: 0 12px 32px rgba(18,60,58,0.16);
            --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', 'Courier New', monospace;
            --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible {
            outline: 3px solid var(--focus-ring);
            outline-offset: 2px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--card-bg);
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(18,60,58,0.10);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-icon {
            width: 38px;
            height: 38px;
            background: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .brand-icon svg {
            width: 20px;
            height: 20px;
            fill: var(--accent);
        }
        .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-menu a {
            font-size: 14.5px;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 4px 0;
            transition: color var(--transition);
            display: inline-block;
        }
        .nav-menu a:hover {
            color: var(--primary);
        }
        .nav-menu a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-menu a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 1px;
        }
        .nav-cta {
            flex-shrink: 0;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            flex-shrink: 0;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2.5px;
            background: var(--primary);
            margin: 5px 0;
            border-radius: 2px;
            transition: all var(--transition);
        }
        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }
        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 22px;
            border-radius: var(--radius-btn);
            font-size: 14.5px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            line-height: 1.4;
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 13.5px;
        }
        .btn-primary {
            background: var(--primary);
            color: #FFFFFF;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--accent);
        }
        .btn-outline:hover {
            background: rgba(18,60,58,0.06);
            color: var(--primary-dark);
            border-color: var(--accent);
        }
        .btn-cta {
            background: var(--cta);
            color: #FFFFFF;
        }
        .btn-cta:hover {
            background: var(--cta-hover);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }
        .btn:active {
            transform: translateY(0);
        }
        /* ========== 通用 Section ========== */
        main {
            display: block;
        }
        .section {
            padding: 72px 0;
            background: var(--bg);
        }
        .section-alt {
            background: #FFFFFF;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-dark {
            background: var(--primary);
            color: #FFFFFF;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.7;
            margin-bottom: 32px;
        }
        .text-muted {
            color: var(--text-muted) !important;
        }
        .badge-soft {
            display: inline-block;
            padding: 4px 10px;
            font-size: 12px;
            border-radius: var(--radius-badge);
            background: rgba(200,161,90,0.12);
            color: #8A6C2F;
            border: 1px solid rgba(200,161,90,0.35);
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        /* ========== 分类 H1 区 ========== */
        .category-hero {
            padding: 48px 0 40px;
            background: linear-gradient(180deg, #FFFFFF 0%, var(--bg) 100%);
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .breadcrumb-custom a {
            color: var(--text-secondary);
        }
        .breadcrumb-custom a:hover {
            color: var(--primary);
        }
        .breadcrumb-custom .sep {
            color: var(--accent);
        }
        .breadcrumb-custom .current {
            color: var(--primary);
            font-weight: 600;
        }
        .category-hero h1 {
            font-size: 38px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--primary);
            margin-bottom: 14px;
        }
        .category-hero p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 800px;
            line-height: 1.7;
            margin-bottom: 0;
        }
        /* ========== 风控规则卡 ========== */
        .risk-rule-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.9fr;
            gap: 24px;
        }
        .risk-rule-main {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-sm);
        }
        .risk-rule-main h3,
        .risk-rule-small h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .risk-rule-main .rule-metric {
            display: flex;
            justify-content: space-between;
            align-items: baseline;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px dashed var(--border);
        }
        .risk-rule-main .rule-metric:last-of-type {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }
        .metric-label {
            font-size: 14px;
            color: var(--text-secondary);
        }
        .metric-value {
            font-size: 26px;
            font-weight: 700;
            font-family: var(--font-mono);
            color: var(--primary);
        }
        .metric-desc {
            font-size: 13px;
            color: var(--text-muted);
            grid-column: 1 / -1;
        }
        .risk-rule-small-wrap {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .risk-rule-small {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 22px;
            box-shadow: var(--shadow-sm);
            flex: 1;
        }
        .risk-rule-small ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .risk-rule-small li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 0;
            color: var(--text-secondary);
            font-size: 14.5px;
            border-bottom: 1px dashed var(--border);
        }
        .risk-rule-small li:last-child {
            border-bottom: none;
        }
        .risk-rule-small li::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            margin-top: 8px;
            flex-shrink: 0;
        }
        /* ========== 资金安全防线 ========== */
        .security-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .security-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 26px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .security-item:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
            transform: translateY(-2px);
        }
        .security-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(18,60,58,0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-size: 22px;
            color: var(--primary);
        }
        .security-item h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .security-item p {
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }
        /* ========== 费用结构 ========== */
        .fee-list {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-sm);
        }
        .fee-row {
            display: grid;
            grid-template-columns: 2fr 1fr 1.5fr;
            gap: 16px;
            padding: 14px 0;
            border-bottom: 1px solid var(--border);
        }
        .fee-row:last-child {
            border-bottom: none;
        }
        .fee-row .fee-term {
            font-weight: 600;
            color: var(--primary);
        }
        .fee-row .fee-rule {
            color: var(--text-secondary);
        }
        .fee-row .fee-detail {
            color: var(--text-muted);
            font-size: 13.5px;
        }
        /* ========== 风险自测 ========== */
        .risk-test-card {
            background: var(--primary);
            color: #FFFFFF;
            border-radius: var(--radius-card);
            padding: 36px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
            box-shadow: var(--shadow-sm);
        }
        .risk-test-card h2 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 6px;
            color: #FFFFFF;
        }
        .risk-test-card p {
            color: rgba(255,255,255,0.8);
            font-size: 15px;
            margin: 0;
        }
        .risk-test-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        /* ========== FAQ ========== */
        .faq-list details {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color var(--transition);
        }
        .faq-list details[open] {
            border-color: var(--accent);
        }
        .faq-list summary {
            list-style: none;
            cursor: pointer;
            padding: 18px 22px;
            font-weight: 600;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            position: relative;
        }
        .faq-list summary::-webkit-details-marker {
            display: none;
        }
        .faq-list summary::after {
            content: '+';
            font-size: 22px;
            font-weight: 300;
            color: var(--accent);
            transition: transform var(--transition);
        }
        .faq-list details[open] summary::after {
            content: '−';
            transform: rotate(180deg);
        }
        .faq-body {
            padding: 0 22px 20px;
            color: var(--text-secondary);
            font-size: 14.5px;
            line-height: 1.7;
        }
        /* ========== 合规提示条 ========== */
        .compliance-bar {
            background: #F0ECE2;
            border-left: 4px solid var(--warning);
            border-radius: 8px;
            padding: 22px 26px;
            display: flex;
            gap: 14px;
            align-items: flex-start;
        }
        .compliance-bar .icon {
            font-size: 24px;
            line-height: 1.4;
            flex-shrink: 0;
        }
        .compliance-bar p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.7;
            margin: 0;
        }
        .compliance-bar strong {
            color: var(--warning);
            font-weight: 700;
        }
        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255,255,255,0.75);
            padding: 60px 0 28px;
        }
        .site-footer a {
            color: rgba(255,255,255,0.7);
        }
        .site-footer a:hover {
            color: var(--accent);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .site-footer h3 {
            color: #FFFFFF;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .site-footer h4 {
            color: #FFFFFF;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 14px;
        }
        .site-footer p {
            font-size: 13.5px;
            line-height: 1.7;
            margin: 0 0 10px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col li {
            margin-bottom: 8px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.15);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12.5px;
        }
        .footer-bottom a {
            font-size: 12.5px;
        }
        /* ========== 响应式 ========== */
        @media (max-width: 992px) {
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                flex-direction: column;
                background: var(--card-bg);
                border-bottom: 1px solid var(--border);
                padding: 16px 24px 20px;
                gap: 14px;
                box-shadow: 0 20px 30px rgba(18,60,58,0.12);
                display: none;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                display: block;
                padding: 6px 0;
            }
            .risk-rule-grid {
                grid-template-columns: 1fr;
            }
            .security-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .fee-row {
                grid-template-columns: 1fr;
                gap: 6px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .section-alt {
                padding: 48px 0;
            }
            .category-hero h1 {
                font-size: 28px;
            }
            .section-title {
                font-size: 24px;
            }
            .security-row {
                grid-template-columns: 1fr;
            }
            .risk-test-card {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 576px) {
            body {
                font-size: 14px;
            }
            .container {
                padding: 0 18px;
            }
            .category-hero h1 {
                font-size: 24px;
            }
            .btn {
                width: 100%;
                padding: 12px 16px;
            }
            .risk-test-actions {
                flex-direction: column;
                width: 100%;
            }
            .compliance-bar {
                flex-direction: column;
            }
            .footer-bottom {
                flex-direction: column;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #123C3A;
            --primary-dark: #0E2C2A;
            --accent: #C8A15A;
            --cta: #D8582B;
            --cta-hover: #B94A25;
            --bg: #F6F4EF;
            --card-bg: #FFFFFF;
            --text-primary: #1D2524;
            --text-secondary: #5C6663;
            --text-muted: #8A938F;
            --border: #E2DED5;
            --focus-ring: rgba(200,161,90,0.4);
            --success: #2A7A5C;
            --warning: #C5532B;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-badge: 4px;
            --shadow-sm: 0 1px 2px rgba(29,37,36,0.06), 0 8px 24px rgba(18,60,58,0.10);
            --shadow-hover: 0 12px 32px rgba(18,60,58,0.16);
            --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', 'Courier New', monospace;
            --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible {
            outline: 3px solid var(--focus-ring);
            outline-offset: 2px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        section {
            padding: 72px 0;
        }

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--card-bg);
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(18,60,58,0.10);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-icon {
            width: 38px;
            height: 38px;
            background: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .brand-icon svg {
            width: 20px;
            height: 20px;
            fill: var(--accent);
        }
        .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-menu a {
            font-size: 14.5px;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 4px 0;
            transition: color var(--transition);
        }
        .nav-menu a:hover {
            color: var(--primary);
        }
        .nav-menu a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-menu a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 1px;
        }
        .nav-cta {
            flex-shrink: 0;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            flex-shrink: 0;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2.5px;
            background: var(--primary);
            margin: 5px 0;
            border-radius: 2px;
            transition: all var(--transition);
        }
        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 22px;
            border-radius: var(--radius-btn);
            font-size: 14.5px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            line-height: 1.4;
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #FFFFFF;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--accent);
        }
        .btn-outline:hover {
            background: rgba(18,60,58,0.06);
            color: var(--primary);
            transform: translateY(-1px);
        }
        .btn-outline:active {
            transform: translateY(0);
        }
        .btn-cta {
            background: var(--cta);
            color: #FFFFFF;
            border: 1px solid var(--cta);
        }
        .btn-cta:hover {
            background: var(--cta-hover);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }
        .btn-cta:active {
            transform: translateY(0);
        }
        .btn-sm {
            padding: 9px 18px;
            font-size: 13.5px;
        }
        .btn-lg {
            padding: 14px 28px;
            font-size: 15.5px;
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-bar {
            background: var(--card-bg);
            border-bottom: 1px solid var(--border);
            padding: 16px 0;
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13.5px;
            color: var(--text-secondary);
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }
        .breadcrumb-nav li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb-nav li:not(:last-child)::after {
            content: '>';
            color: var(--text-muted);
            font-size: 12px;
        }
        .breadcrumb-nav a {
            color: var(--text-secondary);
        }
        .breadcrumb-nav a:hover {
            color: var(--primary);
        }
        .breadcrumb-nav .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* ========== 分类H1区 ========== */
        .cat-hero {
            background: var(--card-bg);
            border-bottom: 1px solid var(--border);
            padding: 56px 0 48px;
        }
        .cat-hero h1 {
            font-size: 34px;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 16px;
            line-height: 1.25;
        }
        .cat-hero .cat-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            margin: 0;
            line-height: 1.7;
        }

        /* ========== 软件功能预览卡 ========== */
        .software-features {
            background: var(--bg);
        }
        .software-features .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 12px;
        }
        .software-features .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0 0 40px;
            max-width: 680px;
        }
        .feature-card-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: all var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
        }
        .feature-card .feature-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            background: #EDEAE3;
        }
        .feature-card .feature-body {
            padding: 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .feature-card .feature-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            border: 1px solid var(--accent);
            border-radius: var(--radius-badge);
            padding: 3px 10px;
            margin-bottom: 12px;
            align-self: flex-start;
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin: 0 0 10px;
            line-height: 1.35;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }

        /* ========== 操作步骤指引 ========== */
        .operation-steps {
            background: var(--card-bg);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .operation-steps .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 12px;
        }
        .operation-steps .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0 0 40px;
            max-width: 680px;
        }
        .steps-timeline {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            position: relative;
        }
        .steps-timeline::before {
            content: '';
            position: absolute;
            top: 28px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: var(--border);
            z-index: 0;
        }
        .step-item {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 0 8px;
        }
        .step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--accent);
            font-size: 20px;
            font-weight: 700;
            font-family: var(--font-mono);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            border: 3px solid var(--card-bg);
            box-shadow: 0 0 0 1px var(--accent);
        }
        .step-item h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            margin: 0 0 6px;
            line-height: 1.4;
        }
        .step-item p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        /* ========== 交易界面截图位与说明 ========== */
        .interface-preview {
            background: var(--bg);
        }
        .interface-preview .interface-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .interface-preview .interface-img-wrap {
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            background: var(--card-bg);
        }
        .interface-preview .interface-img-wrap img {
            width: 100%;
            height: 320px;
            object-fit: cover;
        }
        .interface-preview .interface-info h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 16px;
            line-height: 1.3;
        }
        .interface-preview .interface-info p {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0 0 20px;
            line-height: 1.7;
        }
        .interface-check-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .interface-check-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14.5px;
            color: var(--text-primary);
            line-height: 1.6;
        }
        .interface-check-list li .check-icon {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--success);
            color: #FFFFFF;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            flex-shrink: 0;
            margin-top: 2px;
        }

        /* ========== 移动端适配说明 ========== */
        .mobile-adapt {
            background: var(--card-bg);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .mobile-adapt .mobile-card {
            display: flex;
            align-items: center;
            gap: 32px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px 36px;
        }
        .mobile-adapt .mobile-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .mobile-adapt .mobile-icon svg {
            width: 28px;
            height: 28px;
            fill: var(--accent);
        }
        .mobile-adapt .mobile-content h2 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 10px;
        }
        .mobile-adapt .mobile-content p {
            font-size: 14.5px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--bg);
        }
        .faq-section .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 12px;
        }
        .faq-section .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0 0 36px;
            max-width: 680px;
        }
        .faq-list {
            max-width: 800px;
        }
        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--accent);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            line-height: 1.5;
            user-select: none;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: color var(--transition);
        }
        .faq-question:hover {
            color: var(--accent);
        }
        .faq-question .faq-num {
            font-family: var(--font-mono);
            font-size: 13px;
            color: var(--accent);
            flex-shrink: 0;
            margin-right: 4px;
        }
        .faq-question .faq-arrow {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            color: var(--text-muted);
            transition: transform var(--transition);
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        .faq-answer-content {
            padding: 0 22px 20px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            border-top: 1px dashed var(--border);
            padding-top: 14px;
            margin: 0 22px;
            padding-left: 0;
            padding-right: 0;
            margin-bottom: 0;
        }
        .faq-answer-content p {
            margin: 0;
        }

        /* ========== 客服/帮助入口 ========== */
        .help-entry {
            background: var(--card-bg);
            border-top: 1px solid var(--border);
        }
        .help-entry .help-card {
            background: var(--primary);
            border-radius: var(--radius-card);
            padding: 48px 40px;
            text-align: center;
            box-shadow: var(--shadow-hover);
        }
        .help-entry .help-card h2 {
            font-size: 26px;
            font-weight: 700;
            color: #FFFFFF;
            margin: 0 0 12px;
        }
        .help-entry .help-card p {
            font-size: 15px;
            color: rgba(255,255,255,0.75);
            margin: 0 0 28px;
            line-height: 1.7;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .help-entry .help-btns {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .help-entry .btn-white-outline {
            background: transparent;
            color: #FFFFFF;
            border: 1px solid rgba(255,255,255,0.5);
        }
        .help-entry .btn-white-outline:hover {
            background: rgba(255,255,255,0.1);
            color: #FFFFFF;
            transform: translateY(-1px);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255,255,255,0.75);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            margin: 0 0 14px;
        }
        .footer-brand p {
            font-size: 13.5px;
            color: rgba(255,255,255,0.6);
            margin: 0;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--accent);
            margin: 0 0 16px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 13.5px;
            color: rgba(255,255,255,0.6);
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.12);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom p {
            font-size: 12.5px;
            color: rgba(255,255,255,0.45);
            margin: 0;
        }
        .footer-bottom a {
            font-size: 12.5px;
            color: rgba(255,255,255,0.5);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 992px) {
            .nav-menu {
                gap: 18px;
            }
            .feature-card-grid {
                grid-template-columns: 1fr;
            }
            .steps-timeline {
                grid-template-columns: repeat(3, 1fr);
                gap: 28px 16px;
            }
            .steps-timeline::before {
                display: none;
            }
            .interface-preview .interface-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            section {
                padding: 48px 0;
            }
            .nav-wrapper {
                height: 60px;
            }
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: var(--card-bg);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 12px 24px 20px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 12px 32px rgba(18,60,58,0.12);
                display: none;
                z-index: 99;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu li {
                width: 100%;
            }
            .nav-menu a {
                display: block;
                padding: 12px 0;
                font-size: 15px;
                border-bottom: 1px solid var(--border);
                width: 100%;
            }
            .nav-menu a.active::after {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .cat-hero h1 {
                font-size: 26px;
            }
            .steps-timeline {
                grid-template-columns: 1fr 1fr;
            }
            .mobile-adapt .mobile-card {
                flex-direction: column;
                text-align: center;
                padding: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 576px) {
            .container {
                padding: 0 18px;
            }
            section {
                padding: 36px 0;
            }
            .cat-hero {
                padding: 36px 0 28px;
            }
            .cat-hero h1 {
                font-size: 22px;
            }
            .cat-hero .cat-subtitle {
                font-size: 14px;
            }
            .software-features .section-title,
            .operation-steps .section-title,
            .faq-section .section-title {
                font-size: 22px;
            }
            .steps-timeline {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .step-item {
                display: flex;
                align-items: center;
                text-align: left;
                gap: 14px;
                padding: 0;
            }
            .step-num {
                margin: 0;
                width: 44px;
                height: 44px;
                font-size: 16px;
                flex-shrink: 0;
            }
            .step-item h3 {
                font-size: 14px;
                margin: 0 0 2px;
            }
            .step-item p {
                font-size: 12.5px;
            }
            .help-entry .help-card {
                padding: 32px 22px;
            }
            .help-entry .help-btns {
                flex-direction: column;
            }
            .help-entry .help-btns .btn {
                width: 100%;
            }
            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }
        }