/* roulang page: index */
:root {
            --bg: #0F1115;
            --surface: #1A1D24;
            --surface-2: #1F232D;
            --primary: #7C3AED;
            --primary-hover: #6D35D9;
            --accent: #10B981;
            --warning: #FF7A00;
            --text-main: #F5F7FA;
            --text-secondary: #A0A6B1;
            --text-muted: #6B7280;
            --border: #2A2E38;
            --border-light: #3A3E48;
            --radius-card: 12px;
            --radius-badge: 6px;
            --radius-btn: 8px;
            --shadow-card: 0 4px 16px rgba(0, 0, 0, 0.25);
            --shadow-card-hover: 0 8px 24px rgba(124, 58, 237, 0.15);
            --shadow-glow-primary: 0 0 40px rgba(124, 58, 237, 0.3);
            --shadow-glow-accent: 0 0 32px rgba(16, 185, 129, 0.22);
            --shadow-glow-warning: 0 0 32px rgba(255, 122, 0, 0.22);
            --font-family-base: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --section-padding-desktop: 76px;
            --section-padding-tablet: 48px;
            --section-padding-mobile: 32px;
            --gap-col: 24px;
            --gap-row: 32px;
            --transition-fast: 0.2s ease;
            --transition-med: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family-base);
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a {
            text-decoration: none;
            color: var(--text-main);
            transition: color var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
        }

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

        button {
            font-family: inherit;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .section-container {
            padding: var(--section-padding-desktop) 0;
            position: relative;
        }

        .section-container-alt {
            background-color: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent);
            background: rgba(16, 185, 129, 0.1);
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            margin-bottom: 14px;
            border: 1px solid rgba(16, 185, 129, 0.25);
        }

        .section-label-primary {
            color: var(--primary);
            background: rgba(124, 58, 237, 0.1);
            border-color: rgba(124, 58, 237, 0.3);
        }

        .section-label-warning {
            color: var(--warning);
            background: rgba(255, 122, 0, 0.1);
            border-color: rgba(255, 122, 0, 0.3);
        }

        .section-title {
            font-size: 34px;
            font-weight: 700;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            color: var(--text-main);
            line-height: 1.3;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 780px;
            line-height: 1.8;
            margin-bottom: 32px;
        }

        .text-accent {
            color: var(--accent);
        }

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

        .text-warning {
            color: var(--warning);
        }

        /* ===== 导航 ===== */
        .site-nav {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(15, 17, 21, 0.92);
            border-bottom: 1px solid var(--border);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            padding: 14px 0;
        }

        .site-nav .navbar-brand {
            font-weight: 800;
            font-size: 1.35rem;
            letter-spacing: -0.5px;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }

        .site-nav .navbar-brand:hover {
            color: var(--text-main);
        }

        .brand-badge {
            display: inline-block;
            font-size: 0.65rem;
            font-weight: 600;
            background: rgba(124, 58, 237, 0.2);
            color: var(--primary);
            padding: 3px 8px;
            border-radius: 4px;
            border: 1px solid rgba(124, 58, 237, 0.35);
            letter-spacing: 0.06em;
        }

        .site-nav .nav-link {
            color: var(--text-secondary) !important;
            font-weight: 500;
            font-size: 0.95rem;
            margin: 0 6px;
            padding: 8px 12px !important;
            border-radius: 6px;
            position: relative;
            transition: color var(--transition-fast), background-color var(--transition-fast);
        }

        .site-nav .nav-link:hover {
            color: var(--primary) !important;
            background: rgba(124, 58, 237, 0.06);
        }

        .site-nav .nav-link.active {
            color: var(--primary) !important;
            font-weight: 600;
        }

        .site-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 12px;
            right: 12px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 8px 10px;
            background: var(--surface);
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.4);
            outline: none;
        }

        .navbar-toggler .fa-bars {
            color: var(--text-main);
            font-size: 1.1rem;
        }

        .btn-nav-outline {
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text-main);
            border-radius: var(--radius-btn);
            padding: 9px 20px;
            font-weight: 500;
            font-size: 0.9rem;
            white-space: nowrap;
            transition: all var(--transition-fast);
        }

        .btn-nav-outline:hover {
            background: var(--surface);
            border-color: var(--primary);
            color: var(--text-main);
        }

        .btn-nav-primary {
            background: var(--primary);
            border: 1px solid var(--primary);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 9px 20px;
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
            transition: all var(--transition-fast);
        }

        .btn-nav-primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #fff;
            box-shadow: var(--shadow-glow-primary);
        }

        /* ===== 按钮通用 ===== */
        .btn-primary-custom {
            background: var(--primary);
            border: 1px solid var(--primary);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 1rem;
            white-space: nowrap;
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary-custom:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #fff;
            box-shadow: var(--shadow-glow-primary);
            transform: translateY(-1px);
        }

        .btn-primary-custom:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.4);
        }

        .btn-secondary-custom {
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text-main);
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            font-weight: 500;
            font-size: 1rem;
            white-space: nowrap;
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-secondary-custom:hover {
            background: var(--surface);
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-1px);
        }

        .btn-secondary-custom:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.4);
        }

        .btn-read-more {
            color: var(--accent);
            font-weight: 500;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition-fast);
            background: none;
            border: none;
            padding: 0;
        }

        .btn-read-more:hover {
            color: var(--accent);
            text-decoration: underline;
            gap: 10px;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 70vh;
            display: flex;
            align-items: center;
            padding: 80px 0 70px;
            background-image: url('/assets/images/662e473f8840ee4c.webp');
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 40%, rgba(15, 17, 21, 0.85) 20%, rgba(15, 17, 21, 0.92) 55%, rgba(15, 17, 21, 0.97) 100%);
            z-index: 1;
        }

        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(124, 58, 237, 0.05) 1px, transparent 1px), linear-gradient(90deg, rgba(124, 58, 237, 0.05) 1px, transparent 1px);
            background-size: 36px 36px;
            z-index: 2;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 3;
            max-width: 720px;
        }

        .hero h1 {
            font-size: 52px;
            font-weight: 800;
            letter-spacing: -1px;
            line-height: 1.15;
            margin-bottom: 20px;
            color: var(--text-main);
        }

        .hero h1 .highlight {
            color: var(--primary);
            position: relative;
        }

        .hero-sub {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 28px;
            max-width: 620px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }

        .invite-progress-wrap {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 18px 22px;
            max-width: 520px;
            box-shadow: var(--shadow-card);
        }

        .invite-progress-head {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 10px;
            font-size: 0.85rem;
            color: var(--text-secondary);
        }

        .invite-progress-head strong {
            color: var(--accent);
            font-weight: 600;
        }

        .progress {
            background: var(--bg);
            border: 1px solid var(--border);
            height: 10px;
            border-radius: 6px;
            overflow: hidden;
        }

        .progress-bar {
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 6px;
            height: 100%;
            transition: width 1s ease;
        }

        /* ===== 数据横幅 ===== */
        .data-banner {
            background: var(--surface);
            border-bottom: 1px solid var(--border);
            padding: 18px 0;
            position: relative;
            overflow: hidden;
        }

        .data-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent), var(--warning), var(--primary));
            background-size: 300% 100%;
            animation: bannerGradient 6s ease infinite;
        }

        @keyframes bannerGradient {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }

        .data-banner .data-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 4px 16px;
            border-right: 1px solid var(--border);
            min-height: 44px;
        }

        .data-banner .data-item:last-child {
            border-right: none;
        }

        .data-banner .data-num {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--accent);
            letter-spacing: -0.5px;
            line-height: 1;
        }

        .data-banner .data-num.warning {
            color: var(--warning);
        }

        .data-banner .data-num.primary {
            color: var(--primary);
        }

        .data-banner .data-label {
            font-size: 0.78rem;
            color: var(--text-muted);
            line-height: 1.3;
            white-space: nowrap;
        }

        /* ===== 卡片 ===== */
        .card-custom {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-med);
            height: 100%;
            overflow: hidden;
        }

        .card-custom:hover {
            border-color: rgba(124, 58, 237, 0.4);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .card-custom .card-body {
            padding: 22px;
        }

        .card-custom .card-icon {
            font-size: 1.8rem;
            color: var(--primary);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .card-custom .card-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .card-custom .card-text {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .card-custom .card-img {
            height: 180px;
            object-fit: cover;
            width: 100%;
            border-bottom: 1px solid var(--border);
        }

        .card-custom .card-badge {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            padding: 3px 8px;
            border-radius: 4px;
            margin-bottom: 8px;
            letter-spacing: 0.04em;
        }

        .badge-accent {
            background: rgba(16, 185, 129, 0.12);
            color: var(--accent);
            border: 1px solid rgba(16, 185, 129, 0.3);
        }

        .badge-primary {
            background: rgba(124, 58, 237, 0.12);
            color: var(--primary);
            border: 1px solid rgba(124, 58, 237, 0.3);
        }

        .badge-warning {
            background: rgba(255, 122, 0, 0.12);
            color: var(--warning);
            border: 1px solid rgba(255, 122, 0, 0.3);
        }

        /* ===== 横向卡片 ===== */
        .card-horizontal {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-med);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .card-horizontal:hover {
            border-color: rgba(124, 58, 237, 0.4);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .card-horizontal .img-wrap {
            height: 200px;
            overflow: hidden;
            border-bottom: 1px solid var(--border);
        }

        .card-horizontal .img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-med);
        }

        .card-horizontal:hover .img-wrap img {
            transform: scale(1.04);
        }

        .card-horizontal .body {
            padding: 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        /* ===== 新闻列表 ===== */
        .news-item {
            padding: 20px 0;
            border-bottom: 1px solid var(--border);
            transition: background var(--transition-fast);
            border-radius: 6px;
        }

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

        .news-item:hover {
            background: rgba(26, 29, 36, 0.6);
            padding-left: 12px;
        }

        .news-date {
            font-size: 0.8rem;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 6px;
            letter-spacing: 0.03em;
        }

        .news-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .news-summary {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 10px;
        }

        /* ===== 数据面板 ===== */
        .stat-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            text-align: center;
            height: 100%;
            transition: all var(--transition-med);
            position: relative;
            overflow: hidden;
        }

        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--primary);
            border-radius: 3px 3px 0 0;
        }

        .stat-card:nth-child(2)::before {
            background: var(--accent);
        }

        .stat-card:nth-child(3)::before {
            background: var(--warning);
        }

        .stat-card:nth-child(4)::before {
            background: var(--primary);
            background: linear-gradient(90deg, var(--primary), var(--accent));
        }

        .stat-card:hover {
            border-color: rgba(124, 58, 237, 0.4);
            box-shadow: var(--shadow-card-hover);
        }

        .stat-card .stat-num {
            font-size: 44px;
            font-weight: 800;
            letter-spacing: -1px;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 6px;
        }

        .stat-card:nth-child(2) .stat-num {
            color: var(--accent);
        }

        .stat-card:nth-child(3) .stat-num {
            color: var(--warning);
        }

        .stat-card .stat-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.4;
        }

        /* ===== FAQ ===== */
        .accordion-custom .accordion-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card) !important;
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .accordion-custom .accordion-item:hover {
            border-color: var(--border-light);
        }

        .accordion-custom .accordion-button {
            background: var(--surface);
            color: var(--text-main);
            font-weight: 600;
            font-size: 1rem;
            padding: 18px 20px;
            border-radius: var(--radius-card) !important;
            box-shadow: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .accordion-custom .accordion-button:not(.collapsed) {
            background: var(--surface-2);
            color: var(--primary);
            box-shadow: none;
            border-bottom: 1px solid var(--border);
            border-radius: var(--radius-card) var(--radius-card) 0 0 !important;
        }

        .accordion-custom .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.4);
            outline: none;
        }

        .accordion-custom .accordion-button::after {
            filter: invert(0.6);
            background-size: 1rem;
        }

        .accordion-custom .accordion-body {
            background: var(--surface);
            color: var(--text-secondary);
            padding: 18px 20px;
            font-size: 15px;
            line-height: 1.7;
        }

        .faq-q {
            color: var(--primary);
            font-weight: 700;
            margin-right: 6px;
        }

        .faq-a {
            color: var(--accent);
            font-weight: 700;
            margin-right: 6px;
        }

        /* ===== 保障条 ===== */
        .assurance-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 16px 18px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            height: 100%;
            transition: all var(--transition-fast);
        }

        .assurance-item:hover {
            border-color: rgba(16, 185, 129, 0.4);
            box-shadow: var(--shadow-glow-accent);
        }

        .assurance-item .icon {
            font-size: 1.3rem;
            color: var(--accent);
            flex-shrink: 0;
            margin-top: 2px;
        }

        .assurance-item .text {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .assurance-item .text strong {
            color: var(--text-main);
            display: block;
            font-size: 0.95rem;
            margin-bottom: 2px;
        }

        /* ===== CTA 区块 ===== */
        .cta-section {
            position: relative;
            padding: 70px 0;
            background: var(--surface-2);
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border);
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.18) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -5%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(16, 185, 129, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 20px;
        }

        .cta-section .cta-title {
            font-size: 32px;
            font-weight: 700;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            color: var(--text-main);
        }

        .cta-section .cta-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

        /* ===== 风险提示 ===== */
        .risk-bar {
            background: rgba(255, 122, 0, 0.08);
            border: 1px solid rgba(255, 122, 0, 0.25);
            border-radius: var(--radius-card);
            padding: 16px 22px;
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .risk-bar .icon {
            font-size: 1.2rem;
            color: var(--warning);
            flex-shrink: 0;
        }

        .risk-bar .text {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            flex: 1;
            min-width: 200px;
        }

        /* ===== 订阅表单 ===== */
        .subscribe-form .input-group {
            max-width: 480px;
            margin: 0 auto;
        }

        .subscribe-form .form-control {
            background: var(--bg);
            border: 1px solid var(--border);
            color: var(--text-main);
            border-radius: var(--radius-btn) 0 0 var(--radius-btn);
            padding: 13px 18px;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
        }

        .subscribe-form .form-control:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.3);
            outline: none;
            background: var(--surface);
        }

        .subscribe-form .form-control::placeholder {
            color: var(--text-muted);
        }

        .subscribe-form .btn-subscribe {
            background: var(--primary);
            border: 1px solid var(--primary);
            color: #fff;
            border-radius: 0 var(--radius-btn) var(--radius-btn) 0;
            padding: 13px 24px;
            font-weight: 600;
            font-size: 0.95rem;
            white-space: nowrap;
            transition: all var(--transition-fast);
        }

        .subscribe-form .btn-subscribe:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            box-shadow: var(--shadow-glow-primary);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--surface);
            border-top: 1px solid var(--border);
            padding: 50px 0 28px;
            margin-top: 10px;
        }

        .site-footer .footer-brand {
            font-weight: 800;
            font-size: 1.3rem;
            letter-spacing: -0.5px;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .site-footer .footer-desc {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 320px;
            margin-bottom: 20px;
        }

        .site-footer h6 {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }

        .site-footer .footer-link {
            display: block;
            color: var(--text-secondary);
            font-size: 0.88rem;
            padding: 4px 0;
            transition: color var(--transition-fast);
        }

        .site-footer .footer-link:hover {
            color: var(--primary);
        }

        .site-footer .footer-bottom {
            border-top: 1px solid var(--border);
            margin-top: 36px;
            padding-top: 20px;
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 10px;
        }

        .site-footer .footer-bottom a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

        /* ===== 合作方占位 ===== */
        .partner-placeholder {
            background: var(--surface-2);
            border: 1px dashed var(--border-light);
            border-radius: var(--radius-card);
            height: 70px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 0.8rem;
            font-weight: 500;
            letter-spacing: 0.05em;
            transition: all var(--transition-fast);
        }

        .partner-placeholder:hover {
            border-color: var(--primary);
            color: var(--text-secondary);
            background: var(--surface);
        }

        /* ===== 步骤流程 ===== */
        .step-item {
            position: relative;
            padding: 20px 18px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            height: 100%;
            transition: all var(--transition-med);
        }

        .step-item:hover {
            border-color: rgba(124, 58, 237, 0.4);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .step-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: rgba(124, 58, 237, 0.35);
            line-height: 1;
            margin-bottom: 10px;
            letter-spacing: -1px;
        }

        .step-item .step-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .step-item .step-desc {
            font-size: 0.87rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 专家/人物卡 ===== */
        .person-card {
            text-align: center;
            padding: 26px 20px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            height: 100%;
            transition: all var(--transition-med);
        }

        .person-card:hover {
            border-color: rgba(124, 58, 237, 0.4);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .person-avatar {
            width: 76px;
            height: 76px;
            border-radius: 50%;
            background: var(--surface-2);
            border: 2px solid var(--border);
            margin: 0 auto 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: var(--text-muted);
            overflow: hidden;
        }

        .person-card .person-name {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 4px;
        }

        .person-card .person-role {
            font-size: 0.82rem;
            color: var(--accent);
            font-weight: 500;
        }

        /* ===== 评价 ===== */
        .review-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 22px;
            height: 100%;
            transition: all var(--transition-med);
        }

        .review-card:hover {
            border-color: rgba(16, 185, 129, 0.4);
            box-shadow: var(--shadow-glow-accent);
        }

        .review-stars {
            color: var(--warning);
            font-size: 0.85rem;
            margin-bottom: 10px;
            letter-spacing: 2px;
        }

        .review-text {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .review-author {
            font-size: 0.82rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ===== 品牌介绍 ===== */
        .brand-intro {
            background: var(--surface-2);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px;
            position: relative;
            overflow: hidden;
        }

        .brand-intro::before {
            content: '';
            position: absolute;
            top: -20%;
            right: -10%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }

        .brand-intro .brand-text {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 18px;
            position: relative;
            z-index: 1;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991px) {
            .section-container {
                padding: var(--section-padding-tablet) 0;
            }
            .hero {
                min-height: 55vh;
                padding: 60px 0 50px;
            }
            .hero h1 {
                font-size: 38px;
            }
            .section-title {
                font-size: 28px;
            }
            .stat-card .stat-num {
                font-size: 36px;
            }
            .data-banner .data-item {
                border-right: none;
                border-bottom: 1px solid var(--border);
                padding: 8px 12px;
            }
            .data-banner .data-item:last-child {
                border-bottom: none;
            }
        }

        @media (max-width: 767px) {
            .section-container {
                padding: var(--section-padding-mobile) 0;
            }
            .hero {
                min-height: 52vh;
                padding: 44px 0 40px;
            }
            .hero h1 {
                font-size: 32px;
                letter-spacing: -0.5px;
            }
            .hero-sub {
                font-size: 15px;
            }
            .section-title {
                font-size: 26px;
            }
            .stat-card .stat-num {
                font-size: 32px;
            }
            .btn-primary-custom,
            .btn-secondary-custom {
                padding: 10px 20px;
                font-size: 0.9rem;
                width: 100%;
                justify-content: center;
            }
            .hero-actions {
                flex-direction: column;
            }
            .site-nav .nav-link {
                padding: 10px 14px !important;
                margin: 4px 0;
            }
            .site-nav .navbar-collapse {
                padding-top: 14px;
            }
            .navbar-nav {
                gap: 4px;
            }
            .site-nav .d-flex.align-items-center {
                flex-direction: column;
                gap: 10px;
                margin-top: 12px;
            }
            .btn-nav-outline,
            .btn-nav-primary {
                width: 100%;
                text-align: center;
                justify-content: center;
                display: flex;
            }
            .news-item:hover {
                padding-left: 0;
            }
            .cta-section {
                padding: 44px 16px;
            }
            .cta-section .cta-title {
                font-size: 24px;
            }
            .site-footer {
                padding: 36px 0 20px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .card-custom .card-img {
                height: 150px;
            }
            .card-horizontal .img-wrap {
                height: 160px;
            }
            .invite-progress-wrap {
                padding: 14px 16px;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 28px;
            }
            .section-title {
                font-size: 22px;
            }
            .stat-card .stat-num {
                font-size: 28px;
            }
            .data-banner .data-num {
                font-size: 1.2rem;
            }
            .data-banner .data-label {
                font-size: 0.68rem;
            }
            .brand-intro {
                padding: 20px;
            }
            .risk-bar {
                padding: 12px 14px;
                flex-direction: column;
                text-align: center;
            }
            .person-card {
                padding: 18px 14px;
            }
        }

/* roulang page: category2 */
:root {
            --bg: #0F1115;
            --surface: #1A1D24;
            --surface-2: #1F232D;
            --primary: #7C3AED;
            --primary-hover: #6D35D9;
            --accent: #10B981;
            --warning: #FF7A00;
            --text-main: #F5F7FA;
            --text-secondary: #A0A6B1;
            --text-muted: #6B7280;
            --border: #2A2E38;
            --border-light: #3A3E48;
            --radius-card: 12px;
            --radius-badge: 6px;
            --radius-btn: 8px;
            --shadow-card: 0 4px 16px rgba(0, 0, 0, 0.25);
            --shadow-card-hover: 0 8px 24px rgba(124, 58, 237, 0.15);
            --shadow-glow-primary: 0 0 40px rgba(124, 58, 237, 0.3);
            --shadow-glow-accent: 0 0 32px rgba(16, 185, 129, 0.22);
            --shadow-glow-warning: 0 0 32px rgba(255, 122, 0, 0.22);
            --font-family-base: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --section-padding-desktop: 64px;
            --section-padding-tablet: 48px;
            --section-padding-mobile: 32px;
            --gap-col: 24px;
            --gap-row: 32px;
            --transition-fast: 0.2s ease;
            --transition-med: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family-base);
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a {
            text-decoration: none;
            color: var(--text-main);
            transition: color var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
        }

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

        button {
            font-family: inherit;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .section-container {
            padding: var(--section-padding-desktop) 0;
            position: relative;
        }

        .section-container-alt {
            background-color: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent);
            background: rgba(16, 185, 129, 0.1);
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            margin-bottom: 14px;
            border: 1px solid rgba(16, 185, 129, 0.25);
        }

        .section-label-primary {
            color: var(--primary);
            background: rgba(124, 58, 237, 0.1);
            border-color: rgba(124, 58, 237, 0.3);
        }

        .section-label-warning {
            color: var(--warning);
            background: rgba(255, 122, 0, 0.1);
            border-color: rgba(255, 122, 0, 0.3);
        }

        .section-title {
            font-size: 30px;
            font-weight: 700;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            color: var(--text-main);
            line-height: 1.3;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 780px;
            line-height: 1.8;
            margin-bottom: 32px;
        }

        .text-accent {
            color: var(--accent);
        }

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

        .text-warning {
            color: var(--warning);
        }

        /* ===== 导航 ===== */
        .site-nav {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(15, 17, 21, 0.92);
            border-bottom: 1px solid var(--border);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            padding: 14px 0;
        }

        .site-nav .navbar-brand {
            font-weight: 800;
            font-size: 1.35rem;
            letter-spacing: -0.5px;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }

        .site-nav .navbar-brand:hover {
            color: var(--text-main);
        }

        .brand-badge {
            display: inline-block;
            font-size: 0.65rem;
            font-weight: 600;
            background: rgba(124, 58, 237, 0.2);
            color: var(--primary);
            padding: 3px 8px;
            border-radius: 4px;
            border: 1px solid rgba(124, 58, 237, 0.35);
            letter-spacing: 0.06em;
        }

        .site-nav .nav-link {
            color: var(--text-secondary) !important;
            font-weight: 500;
            font-size: 0.95rem;
            margin: 0 6px;
            padding: 8px 12px !important;
            border-radius: 6px;
            position: relative;
            transition: color var(--transition-fast), background-color var(--transition-fast);
        }

        .site-nav .nav-link:hover {
            color: var(--primary) !important;
            background: rgba(124, 58, 237, 0.06);
        }

        .site-nav .nav-link.active {
            color: var(--primary) !important;
            font-weight: 600;
        }

        .site-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 12px;
            right: 12px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .navbar-toggler {
            border: 1px solid var(--border);
            color: var(--text-main);
            background: var(--surface);
            padding: 8px 12px;
            border-radius: 6px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.4);
            outline: none;
        }

        .navbar-toggler i {
            color: var(--text-main);
            font-size: 1.1rem;
        }

        .btn-nav-outline {
            display: inline-block;
            padding: 8px 18px;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text-main);
            background: transparent;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-btn);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-nav-outline:hover {
            background: var(--surface);
            border-color: var(--primary);
            color: var(--primary);
        }

        .btn-nav-primary {
            display: inline-block;
            padding: 8px 18px;
            font-size: 0.875rem;
            font-weight: 600;
            color: #ffffff;
            background: var(--primary);
            border: 1px solid var(--primary);
            border-radius: var(--radius-btn);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-nav-primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(124, 58, 237, 0.4);
        }

        /* ===== 按钮 ===== */
        .btn-primary-custom {
            display: inline-block;
            padding: 12px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            color: #ffffff;
            background: var(--primary);
            border: 1px solid var(--primary);
            border-radius: var(--radius-btn);
            transition: all var(--transition-fast);
            text-align: center;
        }

        .btn-primary-custom:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #ffffff;
            box-shadow: 0 6px 20px rgba(124, 58, 237, 0.4);
            transform: translateY(-1px);
        }

        .btn-primary-custom:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.4);
        }

        .btn-outline-custom {
            display: inline-block;
            padding: 12px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-main);
            background: transparent;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-btn);
            transition: all var(--transition-fast);
            text-align: center;
        }

        .btn-outline-custom:hover {
            background: var(--surface);
            border-color: var(--primary);
            color: var(--primary);
        }

        .btn-outline-custom:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.4);
        }

        .btn-read-more {
            display: inline-block;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--accent);
            transition: all var(--transition-fast);
        }

        .btn-read-more:hover {
            color: var(--accent);
            text-decoration: underline;
            transform: translateX(2px);
        }

        .btn-read-more i {
            margin-left: 6px;
            font-size: 0.75rem;
            transition: transform var(--transition-fast);
        }

        .btn-read-more:hover i {
            transform: translateX(4px);
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-section {
            padding: 20px 0 0;
            background: var(--bg);
        }

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--text-muted);
            list-style: none;
            padding: 0;
            margin: 0;
            flex-wrap: wrap;
        }

        .breadcrumb-custom a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

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

        .breadcrumb-custom .separator {
            color: var(--border-light);
            font-size: 0.75rem;
        }

        .breadcrumb-custom .current {
            color: var(--text-main);
            font-weight: 600;
        }

        /* ===== 分类页头 ===== */
        .category-header {
            background: var(--bg);
            padding: 40px 0 32px;
            border-bottom: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }

        .category-header::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -120px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.18) 0%, transparent 70%);
            pointer-events: none;
        }

        .category-header h1 {
            font-size: 40px;
            font-weight: 800;
            letter-spacing: -1px;
            color: var(--text-main);
            margin-bottom: 8px;
            position: relative;
            z-index: 1;
        }

        .category-header .category-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            position: relative;
            z-index: 1;
        }

        /* ===== 简介段 ===== */
        .category-intro {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.9;
            max-width: 860px;
            margin-bottom: 0;
        }

        /* ===== 列表卡片 ===== */
        .list-card {
            display: flex;
            gap: 20px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 18px;
            margin-bottom: 20px;
            transition: all var(--transition-med);
            position: relative;
            overflow: hidden;
        }

        .list-card:hover {
            border-color: rgba(124, 58, 237, 0.45);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .list-card-img {
            flex-shrink: 0;
            width: 200px;
            height: 132px;
            border-radius: 8px;
            overflow: hidden;
            position: relative;
            background: var(--surface-2);
        }

        .list-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-med);
        }

        .list-card:hover .list-card-img img {
            transform: scale(1.04);
        }

        .list-card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(124, 58, 237, 0.12), transparent 60%);
            pointer-events: none;
        }

        .list-card-body {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-width: 0;
        }

        .list-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 6px;
            flex-wrap: wrap;
        }

        .list-card-meta .date {
            color: var(--accent);
            font-weight: 500;
        }

        .list-card-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }

        .list-card-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 500;
            color: var(--primary);
            background: rgba(124, 58, 237, 0.1);
            padding: 2px 8px;
            border-radius: var(--radius-badge);
            border: 1px solid rgba(124, 58, 237, 0.25);
        }

        .list-card-tag.accent-tag {
            color: var(--accent);
            background: rgba(16, 185, 129, 0.1);
            border-color: rgba(16, 185, 129, 0.25);
        }

        .list-card-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .list-card-title a {
            color: var(--text-main);
            transition: color var(--transition-fast);
        }

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

        .list-card-excerpt {
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .list-card .btn-read-more {
            align-self: flex-end;
        }

        /* ===== 查看更多 ===== */
        .view-more-wrap {
            text-align: center;
            padding-top: 12px;
        }

        .btn-view-more {
            display: inline-block;
            padding: 10px 26px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--accent);
            background: rgba(16, 185, 129, 0.08);
            border: 1px solid rgba(16, 185, 129, 0.3);
            border-radius: var(--radius-btn);
            transition: all var(--transition-fast);
        }

        .btn-view-more:hover {
            background: rgba(16, 185, 129, 0.16);
            border-color: var(--accent);
            color: var(--accent);
            box-shadow: 0 4px 14px rgba(16, 185, 129, 0.2);
        }

        /* ===== 精选推荐卡片 ===== */
        .feature-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition-med);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .feature-card:hover {
            border-color: rgba(124, 58, 237, 0.45);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .feature-card-img {
            position: relative;
            height: 180px;
            overflow: hidden;
            background: var(--surface-2);
        }

        .feature-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-med);
        }

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

        .feature-card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 17, 21, 0.05), rgba(15, 17, 21, 0.35));
            pointer-events: none;
        }

        .feature-card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            font-size: 0.72rem;
            font-weight: 600;
            color: #fff;
            background: var(--warning);
            padding: 3px 10px;
            border-radius: var(--radius-badge);
            z-index: 2;
        }

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

        .feature-card-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .feature-card-desc {
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
            flex: 1;
        }

        /* ===== 数据面板 ===== */
        .stat-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            text-align: center;
            transition: all var(--transition-med);
            height: 100%;
            position: relative;
            overflow: hidden;
        }

        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--primary);
            opacity: 0;
            transition: opacity var(--transition-fast);
        }

        .stat-card:nth-child(2)::before {
            background: var(--accent);
        }

        .stat-card:nth-child(3)::before {
            background: var(--warning);
        }

        .stat-card:nth-child(4)::before {
            background: var(--primary);
        }

        .stat-card:hover {
            border-color: rgba(124, 58, 237, 0.4);
            box-shadow: var(--shadow-card-hover);
        }

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

        .stat-card .stat-number {
            font-size: 42px;
            font-weight: 800;
            letter-spacing: -1px;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .stat-card:nth-child(2) .stat-number {
            color: var(--accent);
        }

        .stat-card:nth-child(3) .stat-number {
            color: var(--warning);
        }

        .stat-card:nth-child(4) .stat-number {
            color: var(--primary);
        }

        .stat-card .stat-label {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-secondary);
        }

        /* ===== 相关资源 ===== */
        .resource-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 18px 20px;
            margin-bottom: 14px;
            transition: all var(--transition-fast);
        }

        .resource-item:hover {
            border-color: rgba(124, 58, 237, 0.4);
            box-shadow: var(--shadow-card);
        }

        .resource-icon {
            flex-shrink: 0;
            width: 42px;
            height: 42px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            font-size: 1.1rem;
            background: rgba(124, 58, 237, 0.12);
            color: var(--primary);
            border: 1px solid rgba(124, 58, 237, 0.25);
        }

        .resource-item:nth-child(2) .resource-icon {
            background: rgba(16, 185, 129, 0.12);
            color: var(--accent);
            border-color: rgba(16, 185, 129, 0.25);
        }

        .resource-item:nth-child(3) .resource-icon {
            background: rgba(255, 122, 0, 0.12);
            color: var(--warning);
            border-color: rgba(255, 122, 0, 0.25);
        }

        .resource-info h5 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 4px;
        }

        .resource-info p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ===== 订阅CTA ===== */
        .cta-section {
            background: var(--surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 40px 36px;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.22) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: 30%;
            width: 160px;
            height: 160px;
            background: radial-gradient(circle, rgba(16, 185, 129, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }

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

        .cta-section h3 {
            font-size: 1.6rem;
            font-weight: 700;
            letter-spacing: -0.5px;
            margin-bottom: 8px;
            color: var(--text-main);
        }

        .cta-section p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-bottom: 24px;
            max-width: 560px;
        }

        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 520px;
            flex-wrap: wrap;
        }

        .cta-form input[type="email"] {
            flex: 1;
            min-width: 220px;
            padding: 12px 16px;
            font-size: 0.9rem;
            color: var(--text-main);
            background: var(--bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-btn);
            transition: all var(--transition-fast);
            outline: none;
        }

        .cta-form input[type="email"]:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.25);
        }

        .cta-form input[type="email"]::placeholder {
            color: var(--text-muted);
        }

        /* ===== 风险提示条 ===== */
        .risk-tip {
            background: rgba(255, 122, 0, 0.06);
            border: 1px solid rgba(255, 122, 0, 0.25);
            border-radius: var(--radius-card);
            padding: 18px 22px;
            display: flex;
            align-items: flex-start;
            gap: 14px;
        }

        .risk-tip .risk-icon {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(255, 122, 0, 0.15);
            color: var(--warning);
            font-size: 0.95rem;
            margin-top: 2px;
        }

        .risk-tip p {
            font-size: 0.875rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg);
            border-top: 1px solid var(--border);
            padding: 56px 0 32px;
            margin-top: 0;
        }

        .site-footer .footer-brand {
            font-weight: 800;
            font-size: 1.2rem;
            letter-spacing: -0.5px;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }

        .site-footer .footer-brand:hover {
            color: var(--text-main);
        }

        .site-footer .footer-desc {
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .site-footer h6 {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .site-footer .footer-link {
            display: block;
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-bottom: 10px;
            transition: color var(--transition-fast);
        }

        .site-footer .footer-link:hover {
            color: var(--primary);
        }

        .site-footer .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 24px;
            margin-top: 32px;
            border-top: 1px solid var(--border);
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .site-footer .footer-bottom a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

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

        /* ===== 响应式 ===== */
        @media (max-width: 991px) {
            .section-container {
                padding: var(--section-padding-tablet) 0;
            }
            .section-title {
                font-size: 26px;
            }
            .category-header h1 {
                font-size: 32px;
            }
            .list-card {
                flex-direction: column;
                gap: 14px;
            }
            .list-card-img {
                width: 100%;
                height: 180px;
            }
            .cta-section {
                padding: 30px 24px;
            }
            .cta-section h3 {
                font-size: 1.35rem;
            }
        }

        @media (max-width: 767px) {
            .section-container {
                padding: var(--section-padding-mobile) 0;
            }
            .section-title {
                font-size: 24px;
            }
            .category-header h1 {
                font-size: 26px;
            }
            .site-nav .navbar-nav {
                padding: 16px 0;
            }
            .site-nav .nav-link {
                padding: 10px 12px !important;
                margin-bottom: 4px;
            }
            .site-nav .d-flex.gap-2 {
                flex-direction: column;
                width: 100%;
                gap: 8px !important;
                padding-top: 8px;
            }
            .site-nav .btn-nav-outline,
            .site-nav .btn-nav-primary {
                width: 100%;
                text-align: center;
            }
            .list-card-img {
                height: 150px;
            }
            .list-card-title {
                font-size: 0.98rem;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-form input[type="email"] {
                width: 100%;
                min-width: auto;
            }
            .stat-card .stat-number {
                font-size: 34px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .breadcrumb-custom {
                font-size: 0.8rem;
            }
        }

        @media (max-width: 520px) {
            .section-title {
                font-size: 21px;
            }
            .category-header h1 {
                font-size: 22px;
            }
            .category-intro {
                font-size: 0.95rem;
            }
            .list-card {
                padding: 14px;
            }
            .list-card-img {
                height: 130px;
            }
            .cta-section {
                padding: 22px 16px;
            }
            .cta-section h3 {
                font-size: 1.15rem;
            }
            .cta-form .btn-primary-custom {
                width: 100%;
            }
            .risk-tip {
                padding: 14px 16px;
                flex-direction: column;
                gap: 10px;
            }
            .feature-card-img {
                height: 140px;
            }
        }

/* roulang page: category3 */
:root {
            --bg: #0F1115;
            --surface: #1A1D24;
            --surface-2: #1F232D;
            --primary: #7C3AED;
            --primary-hover: #6D35D9;
            --accent: #10B981;
            --warning: #FF7A00;
            --text-main: #F5F7FA;
            --text-secondary: #A0A6B1;
            --text-muted: #6B7280;
            --border: #2A2E38;
            --border-light: #3A3E48;
            --radius-card: 12px;
            --radius-badge: 6px;
            --radius-btn: 8px;
            --shadow-card: 0 4px 16px rgba(0, 0, 0, 0.25);
            --shadow-card-hover: 0 8px 24px rgba(124, 58, 237, 0.15);
            --shadow-glow-primary: 0 0 40px rgba(124, 58, 237, 0.3);
            --shadow-glow-accent: 0 0 32px rgba(16, 185, 129, 0.22);
            --shadow-glow-warning: 0 0 32px rgba(255, 122, 0, 0.22);
            --font-family-base: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --section-padding-desktop: 76px;
            --section-padding-tablet: 48px;
            --section-padding-mobile: 32px;
            --gap-col: 24px;
            --gap-row: 32px;
            --transition-fast: 0.2s ease;
            --transition-med: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family-base);
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a {
            text-decoration: none;
            color: var(--text-main);
            transition: color var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
        }

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

        button {
            font-family: inherit;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .section-container {
            padding: var(--section-padding-desktop) 0;
            position: relative;
        }

        .section-container-alt {
            background-color: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent);
            background: rgba(16, 185, 129, 0.1);
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            margin-bottom: 14px;
            border: 1px solid rgba(16, 185, 129, 0.25);
        }

        .section-label-primary {
            color: var(--primary);
            background: rgba(124, 58, 237, 0.1);
            border-color: rgba(124, 58, 237, 0.3);
        }

        .section-label-warning {
            color: var(--warning);
            background: rgba(255, 122, 0, 0.1);
            border-color: rgba(255, 122, 0, 0.3);
        }

        .section-title {
            font-size: 34px;
            font-weight: 700;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            color: var(--text-main);
            line-height: 1.3;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 780px;
            line-height: 1.8;
            margin-bottom: 32px;
        }

        .text-accent {
            color: var(--accent);
        }

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

        .text-warning {
            color: var(--warning);
        }

        /* ===== 导航 ===== */
        .site-nav {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(15, 17, 21, 0.92);
            border-bottom: 1px solid var(--border);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            padding: 14px 0;
        }

        .site-nav .navbar-brand {
            font-weight: 800;
            font-size: 1.35rem;
            letter-spacing: -0.5px;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }

        .site-nav .navbar-brand:hover {
            color: var(--text-main);
        }

        .brand-badge {
            display: inline-block;
            font-size: 0.65rem;
            font-weight: 600;
            background: rgba(124, 58, 237, 0.2);
            color: var(--primary);
            padding: 3px 8px;
            border-radius: 4px;
            border: 1px solid rgba(124, 58, 237, 0.35);
            letter-spacing: 0.06em;
        }

        .site-nav .nav-link {
            color: var(--text-secondary) !important;
            font-weight: 500;
            font-size: 0.95rem;
            margin: 0 6px;
            padding: 8px 12px !important;
            border-radius: 6px;
            position: relative;
            transition: color var(--transition-fast), background-color var(--transition-fast);
        }

        .site-nav .nav-link:hover {
            color: var(--primary) !important;
            background: rgba(124, 58, 237, 0.06);
        }

        .site-nav .nav-link.active {
            color: var(--primary) !important;
            font-weight: 600;
        }

        .site-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 12px;
            right: 12px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .btn-nav-primary {
            background-color: var(--primary);
            color: #fff;
            border: none;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.9rem;
            transition: background-color var(--transition-fast), box-shadow var(--transition-fast);
            white-space: nowrap;
        }

        .btn-nav-primary:hover {
            background-color: var(--primary-hover);
            color: #fff;
            box-shadow: 0 4px 12px rgba(124, 58, 237, 0.35);
        }

        .btn-nav-outline {
            background: transparent;
            border: 1px solid var(--border-light);
            color: var(--text-main);
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-nav-outline:hover {
            background-color: var(--surface);
            border-color: var(--primary);
            color: var(--text-main);
        }

        .navbar-toggler {
            border: 1px solid var(--border);
            color: var(--text-main);
            background: var(--surface);
            padding: 8px 12px;
            border-radius: 6px;
            font-size: 1.2rem;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.25);
        }

        /* ===== 面包屑与分类页头 ===== */
        .breadcrumb-section {
            padding: 28px 0 16px;
        }

        .breadcrumb {
            margin-bottom: 0;
            --bs-breadcrumb-divider-color: var(--text-muted);
            --bs-breadcrumb-item-active-color: var(--text-secondary);
        }

        .breadcrumb-item a {
            color: var(--text-secondary);
        }

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

        .breadcrumb-item.active {
            color: var(--text-secondary);
        }

        .page-header-title {
            font-size: 42px;
            font-weight: 800;
            letter-spacing: -1px;
            color: var(--text-main);
            line-height: 1.2;
            margin-bottom: 12px;
        }

        .page-header-desc {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 820px;
            line-height: 1.9;
        }

        /* ===== 列表卡片 ===== */
        .list-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            height: 100%;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-med), box-shadow var(--transition-med), border-color var(--transition-fast);
            display: flex;
            flex-direction: column;
        }

        .list-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(124, 58, 237, 0.35);
        }

        .list-card-img-wrap {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--surface-2);
            position: relative;
        }

        .list-card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-med);
        }

        .list-card:hover .list-card-img-wrap img {
            transform: scale(1.04);
        }

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

        .list-card-date {
            font-size: 0.8rem;
            color: var(--accent);
            font-weight: 600;
            letter-spacing: 0.02em;
            margin-bottom: 6px;
        }

        .list-card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.45;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }

        .list-card-summary {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 12px;
        }

        .list-card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 12px;
        }

        .tag-badge {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 600;
            background: rgba(124, 58, 237, 0.12);
            color: var(--primary);
            padding: 4px 10px;
            border-radius: var(--radius-badge);
            border: 1px solid rgba(124, 58, 237, 0.2);
        }

        .tag-badge-green {
            background: rgba(16, 185, 129, 0.1);
            color: var(--accent);
            border-color: rgba(16, 185, 129, 0.25);
        }

        .tag-badge-orange {
            background: rgba(255, 122, 0, 0.1);
            color: var(--warning);
            border-color: rgba(255, 122, 0, 0.25);
        }

        .btn-read-more {
            align-self: flex-end;
            color: var(--accent);
            font-weight: 600;
            font-size: 0.85rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition-fast), color var(--transition-fast);
        }

        .btn-read-more:hover {
            color: #0d9668;
            gap: 10px;
        }

        .btn-view-all {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 12px 24px;
            border: 1px solid rgba(16, 185, 129, 0.35);
            border-radius: var(--radius-btn);
            background: rgba(16, 185, 129, 0.08);
            transition: all var(--transition-fast);
        }

        .btn-view-all:hover {
            background: rgba(16, 185, 129, 0.15);
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
        }

        /* ===== 精选推荐横向卡片 ===== */
        .featured-h-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            display: flex;
            flex-direction: row;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition-med), border-color var(--transition-fast);
            height: 100%;
        }

        .featured-h-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(124, 58, 237, 0.35);
        }

        .featured-h-img {
            flex: 0 0 42%;
            max-width: 42%;
            overflow: hidden;
            background: var(--surface-2);
            min-height: 180px;
        }

        .featured-h-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-med);
        }

        .featured-h-card:hover .featured-h-img img {
            transform: scale(1.03);
        }

        .featured-h-body {
            padding: 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .featured-h-title {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .featured-h-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 12px;
        }

        /* ===== 数据面板 ===== */
        .stat-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-bottom: 3px solid var(--primary);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-med), box-shadow var(--transition-med);
            height: 100%;
        }

        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 10px 28px rgba(0, 0, 0, 0.3);
        }

        .stat-card.accent-bottom {
            border-bottom-color: var(--accent);
        }

        .stat-card.warning-bottom {
            border-bottom-color: var(--warning);
        }

        .stat-number {
            font-size: 42px;
            font-weight: 800;
            letter-spacing: -1px;
            color: var(--text-main);
            line-height: 1.2;
        }

        .stat-number span {
            font-size: 0.4em;
            font-weight: 600;
            color: var(--primary);
            margin-left: 2px;
        }

        .stat-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-top: 8px;
            font-weight: 500;
        }

        /* ===== 相关资源 ===== */
        .resource-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 18px 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            transition: background-color var(--transition-fast), border-color var(--transition-fast);
            height: 100%;
        }

        .resource-item:hover {
            border-color: var(--primary);
            background: var(--surface-2);
        }

        .resource-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(124, 58, 237, 0.12);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            flex-shrink: 0;
        }

        .resource-info h5 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .resource-info p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        /* ===== 订阅 CTA ===== */
        .subscribe-panel {
            background: linear-gradient(135deg, rgba(124, 58, 237, 0.12), rgba(16, 185, 129, 0.08));
            border: 1px solid rgba(124, 58, 237, 0.25);
            border-radius: 16px;
            padding: 36px 32px;
            position: relative;
            overflow: hidden;
        }

        .subscribe-panel::after {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 220px;
            height: 220px;
            background: rgba(16, 185, 129, 0.18);
            border-radius: 50%;
            filter: blur(40px);
            pointer-events: none;
        }

        .subscribe-title {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 10px;
            letter-spacing: -0.5px;
            position: relative;
            z-index: 1;
        }

        .subscribe-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            margin-bottom: 24px;
            max-width: 600px;
            position: relative;
            z-index: 1;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .subscribe-input {
            flex: 1;
            min-width: 240px;
            background: var(--bg);
            border: 1px solid var(--border);
            color: var(--text-main);
            padding: 12px 18px;
            border-radius: var(--radius-btn);
            font-size: 0.95rem;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

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

        .subscribe-input:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
        }

        .btn-subscribe {
            background-color: var(--primary);
            color: #fff;
            border: none;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.95rem;
            transition: background-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .btn-subscribe:hover {
            background-color: var(--primary-hover);
            box-shadow: 0 6px 16px rgba(124, 58, 237, 0.3);
        }

        /* ===== 风险提示 ===== */
        .risk-tip {
            background: rgba(255, 122, 0, 0.08);
            border: 1px solid rgba(255, 122, 0, 0.3);
            border-radius: 10px;
            padding: 18px 22px;
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }

        .risk-tip i {
            color: var(--warning);
            font-size: 1.3rem;
            margin-top: 3px;
        }

        .risk-tip p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--surface);
            border-top: 1px solid var(--border);
            padding: 48px 0 24px;
            margin-top: 0;
        }

        .site-footer .footer-brand {
            font-weight: 800;
            font-size: 1.4rem;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .site-footer h6 {
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .footer-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 300px;
        }

        .footer-link {
            display: block;
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-bottom: 10px;
            transition: color var(--transition-fast), padding-left var(--transition-fast);
        }

        .footer-link:hover {
            color: var(--primary);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            margin-top: 32px;
            padding-top: 18px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8rem;
            color: var(--text-muted);
            gap: 8px;
        }

        .footer-bottom a {
            color: var(--text-muted);
            margin: 0 4px;
        }

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

        /* ===== 响应式 ===== */
        @media (max-width: 992px) {
            .page-header-title {
                font-size: 34px;
            }
            .section-title {
                font-size: 28px;
            }
            .stat-number {
                font-size: 34px;
            }
            .featured-h-card {
                flex-direction: column;
            }
            .featured-h-img {
                flex: 0 0 auto;
                max-width: 100%;
                aspect-ratio: 16/9;
            }
        }

        @media (max-width: 768px) {
            .section-container {
                padding: var(--section-padding-tablet) 0;
            }
            .page-header-title {
                font-size: 30px;
            }
            .section-title {
                font-size: 26px;
            }
            .list-card-title {
                font-size: 1.05rem;
            }
            .stat-number {
                font-size: 30px;
            }
            .subscribe-panel {
                padding: 26px 20px;
            }
            .subscribe-title {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .section-container {
                padding: var(--section-padding-mobile) 0;
            }
            .page-header-title {
                font-size: 28px;
            }
            .section-title {
                font-size: 24px;
            }
            .btn-nav-primary,
            .btn-nav-outline {
                padding: 8px 16px;
                font-size: 0.8rem;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-input {
                min-width: 100%;
            }
            .btn-subscribe {
                width: 100%;
            }
        }

/* roulang page: category1 */
:root {
            --bg: #0F1115;
            --surface: #1A1D24;
            --surface-2: #1F232D;
            --primary: #7C3AED;
            --primary-hover: #6D35D9;
            --accent: #10B981;
            --warning: #FF7A00;
            --text-main: #F5F7FA;
            --text-secondary: #A0A6B1;
            --text-muted: #6B7280;
            --border: #2A2E38;
            --border-light: #3A3E48;
            --radius-card: 12px;
            --radius-badge: 6px;
            --radius-btn: 8px;
            --shadow-card: 0 4px 16px rgba(0, 0, 0, 0.25);
            --shadow-card-hover: 0 8px 24px rgba(124, 58, 237, 0.15);
            --shadow-glow-primary: 0 0 40px rgba(124, 58, 237, 0.3);
            --shadow-glow-accent: 0 0 32px rgba(16, 185, 129, 0.22);
            --shadow-glow-warning: 0 0 32px rgba(255, 122, 0, 0.22);
            --font-family-base: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --section-padding-desktop: 76px;
            --section-padding-tablet: 48px;
            --section-padding-mobile: 32px;
            --gap-col: 24px;
            --gap-row: 32px;
            --transition-fast: 0.2s ease;
            --transition-med: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family-base);
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: var(--text-main);
            transition: color var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        a:hover {
            color: var(--primary);
        }
        button {
            font-family: inherit;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .section-container {
            padding: var(--section-padding-desktop) 0;
            position: relative;
        }
        .section-container-alt {
            background-color: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent);
            background: rgba(16, 185, 129, 0.1);
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            margin-bottom: 14px;
            border: 1px solid rgba(16, 185, 129, 0.25);
        }
        .section-label-primary {
            color: var(--primary);
            background: rgba(124, 58, 237, 0.1);
            border-color: rgba(124, 58, 237, 0.3);
        }
        .section-label-warning {
            color: var(--warning);
            background: rgba(255, 122, 0, 0.1);
            border-color: rgba(255, 122, 0, 0.3);
        }
        .section-title {
            font-size: 34px;
            font-weight: 700;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            color: var(--text-main);
            line-height: 1.3;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 780px;
            line-height: 1.8;
            margin-bottom: 32px;
        }
        .text-accent {
            color: var(--accent);
        }
        .text-primary {
            color: var(--primary);
        }
        .text-warning {
            color: var(--warning);
        }
        /* ===== 导航 ===== */
        .site-nav {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(15, 17, 21, 0.92);
            border-bottom: 1px solid var(--border);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            padding: 14px 0;
        }
        .site-nav .navbar-brand {
            font-weight: 800;
            font-size: 1.35rem;
            letter-spacing: -0.5px;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }
        .site-nav .navbar-brand:hover {
            color: var(--text-main);
        }
        .brand-badge {
            display: inline-block;
            font-size: 0.65rem;
            font-weight: 600;
            background: rgba(124, 58, 237, 0.2);
            color: var(--primary);
            padding: 3px 8px;
            border-radius: 4px;
            border: 1px solid rgba(124, 58, 237, 0.35);
            letter-spacing: 0.06em;
        }
        .site-nav .nav-link {
            color: var(--text-secondary) !important;
            font-weight: 500;
            font-size: 0.95rem;
            margin: 0 6px;
            padding: 8px 12px !important;
            border-radius: 6px;
            position: relative;
            transition: color var(--transition-fast), background-color var(--transition-fast);
        }
        .site-nav .nav-link:hover {
            color: var(--primary) !important;
            background: rgba(124, 58, 237, 0.06);
        }
        .site-nav .nav-link.active {
            color: var(--primary) !important;
            font-weight: 600;
        }
        .site-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 12px;
            right: 12px;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
        }
        .site-nav .navbar-toggler {
            color: var(--text-main);
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            padding: 6px 12px;
            font-size: 1.2rem;
            background: var(--surface);
        }
        .site-nav .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.4);
            outline: none;
        }
        .btn-nav-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff !important;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            border: none;
            white-space: nowrap;
            transition: background var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
        }
        .btn-nav-primary:hover {
            background: var(--primary-hover);
            color: #fff !important;
            box-shadow: var(--shadow-glow-primary);
            transform: translateY(-1px);
        }
        .btn-nav-primary:focus-visible {
            outline: none;
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.4);
        }
        .btn-nav-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--text-main) !important;
            font-weight: 500;
            font-size: 0.9rem;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--border-light);
            white-space: nowrap;
            transition: border-color var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
        }
        .btn-nav-outline:hover {
            border-color: var(--primary);
            background: var(--surface);
            color: var(--primary) !important;
        }
        .btn-nav-outline:focus-visible {
            outline: none;
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.3);
        }
        /* ===== 按钮通用 ===== */
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff !important;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: none;
            white-space: nowrap;
            transition: background var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
        }
        .btn-primary-custom:hover {
            background: var(--primary-hover);
            color: #fff !important;
            box-shadow: var(--shadow-glow-primary);
            transform: translateY(-2px);
        }
        .btn-primary-custom:focus-visible {
            outline: none;
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.4);
        }
        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--text-main) !important;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--border-light);
            white-space: nowrap;
            transition: border-color var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
        }
        .btn-outline-custom:hover {
            border-color: var(--primary);
            background: var(--surface);
            color: var(--primary) !important;
        }
        .btn-outline-custom:focus-visible {
            outline: none;
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.3);
        }
        /* ===== 分类页头 ===== */
        .page-header-category {
            padding: 48px 0 36px;
            background: var(--bg);
            border-bottom: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }
        .page-header-category::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.12), transparent 70%);
            pointer-events: none;
        }
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .breadcrumb-custom a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .breadcrumb-custom a:hover {
            color: var(--primary);
        }
        .breadcrumb-custom .separator {
            color: var(--text-muted);
            font-size: 0.7rem;
        }
        .breadcrumb-custom .current {
            color: var(--accent);
            font-weight: 500;
        }
        .page-header-category h1 {
            font-size: 40px;
            font-weight: 800;
            letter-spacing: -1px;
            color: var(--text-main);
            margin-bottom: 12px;
            line-height: 1.25;
            position: relative;
            z-index: 1;
        }
        .page-header-category .category-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 820px;
            line-height: 1.8;
            margin-bottom: 0;
            position: relative;
            z-index: 1;
        }
        /* ===== 列表卡片主体 ===== */
        .article-list-section {
            padding: 56px 0 40px;
            background: var(--bg);
        }
        .article-list-card {
            display: flex;
            gap: 24px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 20px;
            margin-bottom: 20px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-med), transform var(--transition-med);
            overflow: hidden;
            position: relative;
        }
        .article-list-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .article-list-card .card-image {
            flex-shrink: 0;
            width: 200px;
            height: 132px;
            border-radius: var(--radius-badge);
            overflow: hidden;
            background: var(--surface-2);
            border: 1px solid var(--border);
        }
        .article-list-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-med);
        }
        .article-list-card:hover .card-image img {
            transform: scale(1.04);
        }
        .article-list-card .card-body-custom {
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .article-list-card .card-meta-top {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .article-list-card .card-date {
            font-size: 0.82rem;
            color: var(--accent);
            font-weight: 500;
            letter-spacing: 0.02em;
        }
        .article-list-card .card-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--primary);
            background: rgba(124, 58, 237, 0.12);
            padding: 2px 10px;
            border-radius: var(--radius-badge);
            border: 1px solid rgba(124, 58, 237, 0.25);
            white-space: nowrap;
        }
        .article-list-card .card-tag.accent-tag {
            color: var(--accent);
            background: rgba(16, 185, 129, 0.1);
            border-color: rgba(16, 185, 129, 0.25);
        }
        .article-list-card .card-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.4;
            margin: 0;
        }
        .article-list-card .card-title a {
            color: var(--text-main);
            transition: color var(--transition-fast);
        }
        .article-list-card .card-title a:hover {
            color: var(--primary);
        }
        .article-list-card .card-excerpt {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-list-card .card-footer-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 4px;
            gap: 12px;
            flex-wrap: wrap;
        }
        .article-list-card .read-more-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition-fast), color var(--transition-fast);
        }
        .article-list-card .read-more-link:hover {
            color: var(--text-main);
            gap: 10px;
        }
        .load-more-wrapper {
            text-align: center;
            padding: 20px 0 8px;
        }
        .load-more-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--accent);
            padding: 10px 24px;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-btn);
            background: var(--surface);
            transition: border-color var(--transition-fast), background var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);
        }
        .load-more-link:hover {
            border-color: var(--accent);
            background: rgba(16, 185, 129, 0.08);
            color: var(--accent);
            box-shadow: var(--shadow-glow-accent);
        }
        /* ===== 精选推荐 ===== */
        .featured-section {
            padding: 40px 0;
            background: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .featured-card {
            display: flex;
            flex-direction: column;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: border-color var(--transition-fast), box-shadow var(--transition-med), transform var(--transition-med);
            height: 100%;
        }
        .featured-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-glow-accent);
            transform: translateY(-3px);
        }
        .featured-card .featured-image {
            height: 160px;
            overflow: hidden;
            background: var(--surface-2);
            border-bottom: 1px solid var(--border);
        }
        .featured-card .featured-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-med);
        }
        .featured-card:hover .featured-image img {
            transform: scale(1.05);
        }
        .featured-card .featured-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .featured-card .featured-tag {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 700;
            color: var(--warning);
            background: rgba(255, 122, 0, 0.12);
            padding: 2px 10px;
            border-radius: var(--radius-badge);
            border: 1px solid rgba(255, 122, 0, 0.3);
            align-self: flex-start;
            letter-spacing: 0.04em;
        }
        .featured-card .featured-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.4;
            margin: 0;
        }
        .featured-card .featured-desc {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
            flex: 1;
        }
        /* ===== 数据面板 ===== */
        .stats-section {
            padding: 48px 0;
            background: var(--bg);
        }
        .stat-item {
            text-align: center;
            padding: 24px 16px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
        }
        .stat-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 40px;
            font-weight: 800;
            letter-spacing: -1px;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-number.accent-num {
            color: var(--accent);
        }
        .stat-number.warning-num {
            color: var(--warning);
        }
        .stat-label {
            font-size: 0.88rem;
            color: var(--text-secondary);
            font-weight: 500;
            letter-spacing: 0.02em;
        }
        /* ===== 相关资源 ===== */
        .resources-section {
            padding: 48px 0;
            background: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .resource-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 18px 20px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            height: 100%;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
        }
        .resource-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .resource-item .resource-icon {
            width: 40px;
            height: 40px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-badge);
            background: rgba(124, 58, 237, 0.12);
            color: var(--primary);
            font-size: 1.1rem;
            border: 1px solid rgba(124, 58, 237, 0.25);
        }
        .resource-item .resource-icon.accent-icon {
            background: rgba(16, 185, 129, 0.1);
            color: var(--accent);
            border-color: rgba(16, 185, 129, 0.25);
        }
        .resource-item .resource-icon.warning-icon {
            background: rgba(255, 122, 0, 0.1);
            color: var(--warning);
            border-color: rgba(255, 122, 0, 0.25);
        }
        .resource-item .resource-content {
            flex: 1;
            min-width: 0;
        }
        .resource-item .resource-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 4px;
            line-height: 1.4;
        }
        .resource-item .resource-desc {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
        }
        /* ===== 订阅CTA ===== */
        .subscribe-section {
            padding: 56px 0;
            background: var(--bg);
            position: relative;
            overflow: hidden;
        }
        .subscribe-section::before {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -60px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(16, 185, 129, 0.1), transparent 70%);
            pointer-events: none;
        }
        .subscribe-panel {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 36px 32px;
            box-shadow: var(--shadow-card);
            position: relative;
            z-index: 1;
        }
        .subscribe-panel h2 {
            font-size: 26px;
            font-weight: 700;
            letter-spacing: -0.5px;
            margin-bottom: 8px;
            color: var(--text-main);
        }
        .subscribe-panel p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: 20px;
        }
        .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .subscribe-form input[type="email"] {
            flex: 1;
            min-width: 220px;
            background: var(--bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-btn);
            padding: 12px 18px;
            font-size: 0.95rem;
            color: var(--text-main);
            font-family: inherit;
            outline: none;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        .subscribe-form input[type="email"]::placeholder {
            color: var(--text-muted);
        }
        .subscribe-form input[type="email"]:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.25);
        }
        .subscribe-form .btn-subscribe {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #0F1115 !important;
            font-weight: 700;
            font-size: 0.9rem;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            border: none;
            white-space: nowrap;
            transition: background var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
        }
        .subscribe-form .btn-subscribe:hover {
            background: #0da274;
            color: #0F1115 !important;
            box-shadow: var(--shadow-glow-accent);
            transform: translateY(-1px);
        }
        .subscribe-form .btn-subscribe:focus-visible {
            outline: none;
            box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.4);
        }
        /* ===== 风险提示 ===== */
        .risk-tip-section {
            padding: 32px 0;
            background: var(--surface);
            border-top: 1px solid rgba(255, 122, 0, 0.2);
        }
        .risk-tip-bar {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 18px 22px;
            background: rgba(255, 122, 0, 0.06);
            border: 1px solid rgba(255, 122, 0, 0.3);
            border-radius: var(--radius-card);
        }
        .risk-tip-bar .risk-icon {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(255, 122, 0, 0.15);
            color: var(--warning);
            font-size: 0.95rem;
            border: 1px solid rgba(255, 122, 0, 0.35);
        }
        .risk-tip-bar p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
            flex: 1;
        }
        .risk-tip-bar p strong {
            color: var(--warning);
            font-weight: 600;
        }
        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg);
            border-top: 1px solid var(--border);
            padding: 56px 0 24px;
            color: var(--text-secondary);
        }
        .site-footer .footer-brand {
            font-size: 1.2rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }
        .site-footer .footer-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 320px;
        }
        .site-footer h6 {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
            letter-spacing: 0.04em;
        }
        .site-footer .footer-link {
            display: block;
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin-bottom: 10px;
            transition: color var(--transition-fast), padding-left var(--transition-fast);
        }
        .site-footer .footer-link:hover {
            color: var(--primary);
            padding-left: 6px;
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            padding-top: 28px;
            margin-top: 36px;
            border-top: 1px solid var(--border);
            font-size: 0.78rem;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: var(--primary);
        }
        .footer-bottom span {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .section-container {
                padding: var(--section-padding-tablet) 0;
            }
            .section-title {
                font-size: 28px;
            }
            .page-header-category h1 {
                font-size: 32px;
            }
            .article-list-card {
                gap: 16px;
                padding: 16px;
            }
            .article-list-card .card-image {
                width: 160px;
                height: 110px;
            }
            .article-list-card .card-title {
                font-size: 16px;
            }
            .stat-number {
                font-size: 34px;
            }
            .subscribe-panel {
                padding: 28px 22px;
            }
            .site-nav .nav-link {
                margin: 4px 0;
                padding: 10px 12px !important;
                font-size: 1rem;
            }
            .site-nav .navbar-collapse {
                padding-top: 16px;
            }
            .site-nav .d-flex.align-items-center.gap-2 {
                flex-direction: column;
                width: 100%;
                gap: 10px !important;
                margin-top: 12px;
            }
            .site-nav .d-flex.align-items-center.gap-2 .btn-nav-primary,
            .site-nav .d-flex.align-items-center.gap-2 .btn-nav-outline {
                width: 100%;
                justify-content: center;
            }
        }
        @media (max-width: 767.98px) {
            .section-container {
                padding: var(--section-padding-mobile) 0;
            }
            .section-title {
                font-size: 24px;
            }
            .page-header-category {
                padding: 32px 0 24px;
            }
            .page-header-category h1 {
                font-size: 26px;
                letter-spacing: -0.5px;
            }
            .page-header-category .category-desc {
                font-size: 0.92rem;
                line-height: 1.7;
            }
            .breadcrumb-custom {
                font-size: 0.78rem;
                margin-bottom: 10px;
            }
            .article-list-card {
                flex-direction: column;
                gap: 12px;
                padding: 14px;
            }
            .article-list-card .card-image {
                width: 100%;
                height: 170px;
            }
            .article-list-card .card-title {
                font-size: 15px;
            }
            .article-list-card .card-excerpt {
                -webkit-line-clamp: 3;
                font-size: 0.85rem;
            }
            .featured-card .featured-image {
                height: 140px;
            }
            .stat-number {
                font-size: 28px;
            }
            .stat-item {
                padding: 18px 12px;
            }
            .subscribe-panel h2 {
                font-size: 22px;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form input[type="email"] {
                min-width: 100%;
            }
            .subscribe-form .btn-subscribe {
                justify-content: center;
                width: 100%;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .footer-bottom span {
                justify-content: center;
            }
            .site-footer {
                padding: 36px 0 20px;
            }
            .risk-tip-bar {
                flex-direction: column;
                gap: 10px;
                padding: 14px 16px;
            }
            .resource-item {
                padding: 14px 16px;
            }
        }
        @media (max-width: 519.98px) {
            .page-header-category h1 {
                font-size: 22px;
            }
            .section-title {
                font-size: 21px;
            }
            .article-list-card .card-image {
                height: 150px;
            }
            .article-list-card .card-footer-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
            .featured-card .featured-image {
                height: 120px;
            }
            .featured-card .featured-title {
                font-size: 15px;
            }
            .stat-number {
                font-size: 24px;
            }
            .stat-label {
                font-size: 0.78rem;
            }
        }

/* roulang page: category4 */
:root {
            --bg: #0F1115;
            --surface: #1A1D24;
            --surface-2: #1F232D;
            --primary: #7C3AED;
            --primary-hover: #6D35D9;
            --accent: #10B981;
            --warning: #FF7A00;
            --text-main: #F5F7FA;
            --text-secondary: #A0A6B1;
            --text-muted: #6B7280;
            --border: #2A2E38;
            --border-light: #3A3E48;
            --radius-card: 12px;
            --radius-badge: 6px;
            --radius-btn: 8px;
            --shadow-card: 0 4px 16px rgba(0, 0, 0, 0.25);
            --shadow-card-hover: 0 8px 24px rgba(124, 58, 237, 0.15);
            --shadow-glow-primary: 0 0 40px rgba(124, 58, 237, 0.3);
            --shadow-glow-accent: 0 0 32px rgba(16, 185, 129, 0.22);
            --shadow-glow-warning: 0 0 32px rgba(255, 122, 0, 0.22);
            --font-family-base: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --section-padding-desktop: 76px;
            --section-padding-tablet: 48px;
            --section-padding-mobile: 32px;
            --gap-col: 24px;
            --gap-row: 32px;
            --transition-fast: 0.2s ease;
            --transition-med: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family-base);
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: var(--text-main);
            transition: color var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        a:hover {
            color: var(--primary);
        }
        button {
            font-family: inherit;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .section-container {
            padding: var(--section-padding-desktop) 0;
            position: relative;
        }
        .section-container-alt {
            background-color: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent);
            background: rgba(16, 185, 129, 0.1);
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            margin-bottom: 14px;
            border: 1px solid rgba(16, 185, 129, 0.25);
        }
        .section-label-primary {
            color: var(--primary);
            background: rgba(124, 58, 237, 0.1);
            border-color: rgba(124, 58, 237, 0.3);
        }
        .section-label-warning {
            color: var(--warning);
            background: rgba(255, 122, 0, 0.1);
            border-color: rgba(255, 122, 0, 0.3);
        }
        .section-title {
            font-size: 34px;
            font-weight: 700;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            color: var(--text-main);
            line-height: 1.3;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 780px;
            line-height: 1.8;
            margin-bottom: 32px;
        }
        .text-accent {
            color: var(--accent);
        }
        .text-primary {
            color: var(--primary);
        }
        .text-warning {
            color: var(--warning);
        }
        /* 导航 */
        .site-nav {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(15, 17, 21, 0.92);
            border-bottom: 1px solid var(--border);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            padding: 14px 0;
        }
        .site-nav .navbar-brand {
            font-weight: 800;
            font-size: 1.35rem;
            letter-spacing: -0.5px;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }
        .site-nav .navbar-brand:hover {
            color: var(--text-main);
        }
        .brand-badge {
            display: inline-block;
            font-size: 0.65rem;
            font-weight: 600;
            background: rgba(124, 58, 237, 0.2);
            color: var(--primary);
            padding: 3px 8px;
            border-radius: 4px;
            border: 1px solid rgba(124, 58, 237, 0.35);
            letter-spacing: 0.06em;
        }
        .site-nav .nav-link {
            color: var(--text-secondary) !important;
            font-weight: 500;
            font-size: 0.95rem;
            margin: 0 6px;
            padding: 8px 12px !important;
            border-radius: 6px;
            position: relative;
            transition: color var(--transition-fast), background-color var(--transition-fast);
        }
        .site-nav .nav-link:hover {
            color: var(--primary) !important;
            background: rgba(124, 58, 237, 0.06);
        }
        .site-nav .nav-link.active {
            color: var(--primary) !important;
            font-weight: 600;
        }
        .site-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 12px;
            right: 12px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .navbar-toggler {
            border: 1px solid var(--border);
            color: var(--text-main);
            background: var(--surface);
            padding: 8px 12px;
            border-radius: 8px;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.4);
        }
        .btn-nav-outline {
            display: inline-block;
            padding: 8px 18px;
            border: 1px solid var(--border-light);
            color: var(--text-main);
            font-weight: 500;
            font-size: 0.9rem;
            border-radius: var(--radius-btn);
            background: transparent;
            white-space: nowrap;
            transition: all var(--transition-fast);
        }
        .btn-nav-outline:hover {
            background: var(--surface);
            border-color: var(--primary);
            color: var(--text-main);
        }
        .btn-nav-primary {
            display: inline-block;
            padding: 8px 18px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border-radius: var(--radius-btn);
            white-space: nowrap;
            border: 1px solid var(--primary);
            transition: all var(--transition-fast);
        }
        .btn-nav-primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #fff;
            box-shadow: 0 4px 14px rgba(124, 58, 237, 0.35);
        }
        /* 面包屑 */
        .breadcrumb-wrap {
            padding: 24px 0;
            border-bottom: 1px solid var(--border);
            background: var(--surface);
        }
        .breadcrumb-wrap .breadcrumb {
            margin: 0;
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .breadcrumb-wrap .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb-wrap .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb-item.active {
            color: var(--text-main);
        }
        .breadcrumb-item + .breadcrumb-item::before {
            content: '/';
            color: var(--text-muted);
        }
        /* 分类页头 */
        .category-header {
            padding: 48px 0;
            background: var(--bg);
            border-bottom: 1px solid var(--border);
        }
        .category-header h1 {
            font-size: 42px;
            font-weight: 800;
            letter-spacing: -1px;
            color: var(--text-main);
            margin-bottom: 16px;
            line-height: 1.25;
        }
        .category-header .category-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 820px;
            line-height: 1.8;
        }
        /* 卡片 */
        .card-custom {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: transform var(--transition-med), box-shadow var(--transition-med), border-color var(--transition-med);
            height: 100%;
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(124, 58, 237, 0.4);
        }
        .card-img-wrap {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--surface-2);
            position: relative;
            border-bottom: 1px solid var(--border);
        }
        .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-med);
        }
        .card-custom:hover .card-img-wrap img {
            transform: scale(1.05);
        }
        .card-body-custom {
            padding: 20px;
        }
        .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: var(--radius-badge);
            background: rgba(16, 185, 129, 0.1);
            color: var(--accent);
            border: 1px solid rgba(16, 185, 129, 0.25);
            margin-bottom: 10px;
        }
        .card-tag-warning {
            background: rgba(255, 122, 0, 0.1);
            color: var(--warning);
            border-color: rgba(255, 122, 0, 0.3);
        }
        .card-tag-primary {
            background: rgba(124, 58, 237, 0.1);
            color: var(--primary);
            border-color: rgba(124, 58, 237, 0.3);
        }
        .card-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .card-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .card-excerpt {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .btn-read-more {
            color: var(--accent);
            font-weight: 500;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition-fast);
        }
        .btn-read-more:hover {
            color: var(--accent);
            text-decoration: underline;
            gap: 10px;
        }
        /* 横向精选卡片 */
        .card-horizontal {
            display: flex;
            flex-direction: row;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-med), box-shadow var(--transition-med), border-color var(--transition-med);
            height: 100%;
        }
        .card-horizontal:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(124, 58, 237, 0.4);
        }
        .card-horizontal .card-img-sm {
            flex: 0 0 200px;
            min-height: 150px;
            overflow: hidden;
            background: var(--surface-2);
        }
        .card-horizontal .card-img-sm img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .card-horizontal .card-body-custom {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        @media (max-width: 768px) {
            .card-horizontal {
                flex-direction: column;
            }
            .card-horizontal .card-img-sm {
                flex: 0 0 auto;
                aspect-ratio: 16/9;
                min-height: auto;
            }
        }
        /* 数据面板 */
        .data-panel {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--gap-col);
        }
        .data-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-med);
        }
        .data-card:hover {
            border-color: rgba(16, 185, 129, 0.4);
            box-shadow: var(--shadow-card-hover);
        }
        .data-number {
            font-size: 42px;
            font-weight: 800;
            color: var(--accent);
            letter-spacing: -1px;
            line-height: 1.2;
        }
        .data-number.alt {
            color: var(--primary);
        }
        .data-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 6px;
        }
        /* 相关资源 */
        .resource-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 16px 20px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            margin-bottom: 14px;
            transition: all var(--transition-fast);
        }
        .resource-item:hover {
            border-color: rgba(16, 185, 129, 0.4);
            background: var(--surface-2);
        }
        .resource-icon {
            width: 42px;
            height: 42px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            background: rgba(124, 58, 237, 0.1);
            color: var(--primary);
            font-size: 1.1rem;
            border: 1px solid rgba(124, 58, 237, 0.3);
        }
        .resource-info h5 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 2px;
            color: var(--text-main);
        }
        .resource-info p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
        }
        /* 订阅CTA */
        .cta-section {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60%;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section h3 {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 12px;
            position: relative;
        }
        .cta-section p {
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 24px;
            position: relative;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 500px;
            margin: 0 auto;
            position: relative;
        }
        .cta-form input {
            flex: 1;
            padding: 12px 18px;
            background: var(--bg);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-btn);
            color: var(--text-main);
            font-size: 0.95rem;
            transition: all var(--transition-fast);
        }
        .cta-form input:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
        }
        .btn-primary-custom {
            display: inline-block;
            padding: 12px 28px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: var(--radius-btn);
            border: 1px solid var(--primary);
            white-space: nowrap;
            transition: all var(--transition-fast);
        }
        .btn-primary-custom:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #fff;
            box-shadow: 0 4px 18px rgba(124, 58, 237, 0.4);
        }
        .btn-outline-custom {
            display: inline-block;
            padding: 12px 28px;
            border: 1px solid var(--border-light);
            color: var(--text-main);
            font-weight: 500;
            font-size: 0.95rem;
            border-radius: var(--radius-btn);
            background: transparent;
            white-space: nowrap;
            transition: all var(--transition-fast);
        }
        .btn-outline-custom:hover {
            background: var(--surface-2);
            border-color: var(--primary);
            color: var(--text-main);
        }
        /* 风险提示 */
        .risk-tip {
            padding: 20px 24px;
            background: rgba(255, 122, 0, 0.06);
            border: 1px solid rgba(255, 122, 0, 0.3);
            border-radius: var(--radius-card);
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }
        .risk-tip i {
            color: var(--warning);
            font-size: 1.1rem;
            margin-top: 4px;
            flex-shrink: 0;
        }
        /* 查看更多按钮 */
        .btn-view-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border: 1px solid var(--accent);
            color: var(--accent);
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: var(--radius-btn);
            background: transparent;
            transition: all var(--transition-fast);
        }
        .btn-view-more:hover {
            background: rgba(16, 185, 129, 0.1);
            color: var(--accent);
            box-shadow: 0 4px 16px rgba(16, 185, 129, 0.2);
        }
        /* 页脚 */
        .site-footer {
            background: var(--surface);
            border-top: 1px solid var(--border);
            padding: 56px 0 28px;
            margin-top: 0;
        }
        .footer-brand {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-desc {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 360px;
        }
        .site-footer h6 {
            color: var(--text-main);
            font-weight: 600;
            font-size: 0.95rem;
            margin-bottom: 16px;
        }
        .footer-link {
            display: block;
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 10px;
            transition: color var(--transition-fast), padding-left var(--transition-fast);
        }
        .footer-link:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 14px;
            padding-top: 24px;
            margin-top: 32px;
            border-top: 1px solid var(--border);
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--primary);
        }
        /* 响应式 */
        @media (max-width: 992px) {
            .section-container {
                padding: var(--section-padding-tablet) 0;
            }
            .category-header h1 {
                font-size: 34px;
            }
            .section-title {
                font-size: 28px;
            }
            .data-panel {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .data-number {
                font-size: 36px;
            }
        }
        @media (max-width: 768px) {
            .section-container {
                padding: var(--section-padding-mobile) 0;
            }
            .category-header {
                padding: 32px 0;
            }
            .category-header h1 {
                font-size: 28px;
                letter-spacing: -0.5px;
            }
            .section-title {
                font-size: 24px;
            }
            .data-panel {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .data-number {
                font-size: 32px;
            }
            .cta-section {
                padding: 28px 18px;
            }
            .cta-form {
                flex-direction: column;
            }
            .btn-primary-custom,
            .btn-outline-custom {
                width: 100%;
                text-align: center;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .site-nav {
                padding: 10px 0;
            }
            .site-nav .navbar-brand {
                font-size: 1.15rem;
            }
        }
        @media (max-width: 520px) {
            .category-header h1 {
                font-size: 24px;
            }
            .section-title {
                font-size: 21px;
            }
            .data-panel {
                grid-template-columns: 1fr;
            }
            .data-number {
                font-size: 28px;
            }
            .card-body-custom {
                padding: 16px;
            }
            .risk-tip {
                padding: 16px;
                font-size: 0.85rem;
            }
        }

/* roulang page: category5 */
:root {
            --bg: #0F1115;
            --surface: #1A1D24;
            --surface-2: #1F232D;
            --primary: #7C3AED;
            --primary-hover: #6D35D9;
            --accent: #10B981;
            --warning: #FF7A00;
            --text-main: #F5F7FA;
            --text-secondary: #A0A6B1;
            --text-muted: #6B7280;
            --border: #2A2E38;
            --border-light: #3A3E48;
            --radius-card: 12px;
            --radius-badge: 6px;
            --radius-btn: 8px;
            --shadow-card: 0 4px 16px rgba(0, 0, 0, 0.25);
            --shadow-card-hover: 0 8px 24px rgba(124, 58, 237, 0.15);
            --shadow-glow-primary: 0 0 40px rgba(124, 58, 237, 0.3);
            --shadow-glow-accent: 0 0 32px rgba(16, 185, 129, 0.22);
            --shadow-glow-warning: 0 0 32px rgba(255, 122, 0, 0.22);
            --font-family-base: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --section-padding-desktop: 76px;
            --section-padding-tablet: 48px;
            --section-padding-mobile: 32px;
            --gap-col: 24px;
            --gap-row: 32px;
            --transition-fast: 0.2s ease;
            --transition-med: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family-base);
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: var(--text-main);
            transition: color var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        a:hover {
            color: var(--primary);
        }
        button {
            font-family: inherit;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .section-container {
            padding: var(--section-padding-desktop) 0;
            position: relative;
        }
        .section-container-alt {
            background-color: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent);
            background: rgba(16, 185, 129, 0.1);
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            margin-bottom: 14px;
            border: 1px solid rgba(16, 185, 129, 0.25);
        }
        .section-label-primary {
            color: var(--primary);
            background: rgba(124, 58, 237, 0.1);
            border-color: rgba(124, 58, 237, 0.3);
        }
        .section-label-warning {
            color: var(--warning);
            background: rgba(255, 122, 0, 0.1);
            border-color: rgba(255, 122, 0, 0.3);
        }
        .section-title {
            font-size: 34px;
            font-weight: 700;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            color: var(--text-main);
            line-height: 1.3;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 780px;
            line-height: 1.8;
            margin-bottom: 32px;
        }
        .text-accent {
            color: var(--accent);
        }
        .text-primary {
            color: var(--primary);
        }
        .text-warning {
            color: var(--warning);
        }

        /* ===== 导航 ===== */
        .site-nav {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(15, 17, 21, 0.92);
            border-bottom: 1px solid var(--border);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            padding: 14px 0;
        }
        .site-nav .navbar-brand {
            font-weight: 800;
            font-size: 1.35rem;
            letter-spacing: -0.5px;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }
        .site-nav .navbar-brand:hover {
            color: var(--text-main);
        }
        .brand-badge {
            display: inline-block;
            font-size: 0.65rem;
            font-weight: 600;
            background: rgba(124, 58, 237, 0.2);
            color: var(--primary);
            padding: 3px 8px;
            border-radius: 4px;
            border: 1px solid rgba(124, 58, 237, 0.35);
            letter-spacing: 0.06em;
        }
        .site-nav .nav-link {
            color: var(--text-secondary) !important;
            font-weight: 500;
            font-size: 0.95rem;
            margin: 0 6px;
            padding: 8px 12px !important;
            border-radius: 6px;
            position: relative;
            transition: color var(--transition-fast), background-color var(--transition-fast);
        }
        .site-nav .nav-link:hover {
            color: var(--primary) !important;
            background: rgba(124, 58, 237, 0.06);
        }
        .site-nav .nav-link.active {
            color: var(--primary) !important;
            font-weight: 600;
        }
        .site-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 12px;
            right: 12px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .navbar-toggler {
            border: 1px solid var(--border);
            color: var(--text-main);
            background: var(--surface);
            padding: 8px 12px;
            border-radius: 8px;
        }
        .navbar-toggler i {
            font-size: 1.1rem;
            color: var(--text-main);
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.3);
            border-color: var(--primary);
        }
        .btn-nav-primary {
            background: var(--primary);
            color: #fff !important;
            border: none;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition-fast);
        }
        .btn-nav-primary:hover {
            background: var(--primary-hover);
            color: #fff !important;
            box-shadow: var(--shadow-glow-primary);
        }
        .btn-nav-primary:focus {
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.4);
        }
        .btn-nav-outline {
            background: transparent;
            color: var(--text-main) !important;
            border: 1px solid var(--border);
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            font-weight: 500;
            font-size: 0.9rem;
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition-fast);
        }
        .btn-nav-outline:hover {
            background: var(--surface);
            border-color: var(--primary);
            color: var(--text-main) !important;
        }
        .btn-nav-outline:focus {
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.2);
        }

        /* ===== 面包屑 / 页头 ===== */
        .page-header {
            padding: 36px 0 24px;
            background: var(--bg);
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb {
            margin-bottom: 12px;
            padding: 0;
            background: transparent;
        }
        .breadcrumb-item {
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .breadcrumb-item a {
            color: var(--text-secondary);
        }
        .breadcrumb-item a:hover {
            color: var(--primary);
        }
        .breadcrumb-item.active {
            color: var(--primary);
            font-weight: 500;
        }
        .breadcrumb-item+.breadcrumb-item::before {
            content: '/';
            color: var(--text-muted);
            margin: 0 8px;
        }
        .page-header h1 {
            font-size: 38px;
            font-weight: 800;
            letter-spacing: -0.8px;
            margin-bottom: 8px;
            color: var(--text-main);
        }
        .page-header .lead {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.8;
        }

        /* ===== 按钮 ===== */
        .btn-primary-custom {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 1rem;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: all var(--transition-fast);
        }
        .btn-primary-custom:hover {
            background: var(--primary-hover);
            color: #fff;
            box-shadow: var(--shadow-glow-primary);
        }
        .btn-primary-custom:focus {
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.4);
        }
        .btn-outline-custom {
            background: transparent;
            color: var(--text-main);
            border: 1px solid var(--border);
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 500;
            font-size: 1rem;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: all var(--transition-fast);
        }
        .btn-outline-custom:hover {
            background: var(--surface);
            border-color: var(--primary);
            color: var(--text-main);
        }
        .btn-outline-custom:focus {
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.2);
        }
        .btn-link-accent {
            color: var(--accent) !important;
            font-weight: 500;
            font-size: 0.95rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition-fast);
        }
        .btn-link-accent:hover {
            color: var(--accent) !important;
            text-decoration: underline;
            gap: 10px;
        }
        .btn-link-accent i {
            font-size: 0.85rem;
        }

        /* ===== 卡片 ===== */
        .card-dark {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-med);
            height: 100%;
            overflow: hidden;
        }
        .card-dark:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(124, 58, 237, 0.45);
            transform: translateY(-3px);
        }
        .card-dark .card-body {
            padding: 24px;
        }
        .card-dark .card-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 10px;
            line-height: 1.5;
        }
        .card-dark .card-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 14px;
        }
        .card-dark .card-meta {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .card-dark .card-meta i {
            color: var(--accent);
            font-size: 0.8rem;
        }
        .card-cover-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            background: var(--surface-2);
            position: relative;
        }
        .card-cover-img::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 50%;
            background: linear-gradient(to top, rgba(26, 29, 36, 0.9), transparent);
            pointer-events: none;
        }

        /* ===== 公告列表 ===== */
        .announcement-item {
            display: flex;
            flex-direction: row;
            gap: 20px;
            padding: 24px 0;
            border-bottom: 1px solid var(--border);
            transition: all var(--transition-fast);
        }
        .announcement-item:last-child {
            border-bottom: none;
        }
        .announcement-item:hover {
            padding-left: 8px;
        }
        .announcement-date {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            min-width: 64px;
            height: 64px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 8px;
            text-align: center;
            flex-shrink: 0;
        }
        .announcement-date .day {
            font-size: 22px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .announcement-date .month {
            font-size: 12px;
            color: var(--text-muted);
            font-weight: 500;
        }
        .announcement-content {
            flex: 1;
            min-width: 0;
        }
        .announcement-content h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .announcement-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 10px;
        }
        .announcement-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .badge-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            padding: 3px 10px;
            border-radius: var(--radius-badge);
            background: rgba(16, 185, 129, 0.1);
            color: var(--accent);
            border: 1px solid rgba(16, 185, 129, 0.3);
        }
        .badge-tag-primary {
            background: rgba(124, 58, 237, 0.1);
            color: var(--primary);
            border-color: rgba(124, 58, 237, 0.3);
        }
        .badge-tag-warning {
            background: rgba(255, 122, 0, 0.1);
            color: var(--warning);
            border-color: rgba(255, 122, 0, 0.3);
        }

        /* ===== 精选推荐 ===== */
        .featured-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition-med);
            height: 100%;
        }
        .featured-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .featured-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            background: var(--surface-2);
        }
        .featured-card .featured-body {
            padding: 20px;
        }
        .featured-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .featured-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 10px;
        }
        .featured-card .featured-meta {
            font-size: 12px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .featured-card .featured-meta i {
            color: var(--primary);
        }

        /* ===== 数据面板 ===== */
        .stat-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            text-align: center;
            transition: all var(--transition-fast);
        }
        .stat-card:hover {
            border-color: rgba(16, 185, 129, 0.45);
            box-shadow: var(--shadow-glow-accent);
        }
        .stat-card .stat-number {
            font-size: 42px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
            letter-spacing: -1px;
        }
        .stat-card .stat-number.primary {
            color: var(--primary);
        }
        .stat-card .stat-number.warning {
            color: var(--warning);
        }
        .stat-card .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 8px;
            font-weight: 500;
        }

        /* ===== 相关资源 ===== */
        .resource-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 16px 20px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 10px;
            transition: all var(--transition-fast);
            margin-bottom: 12px;
        }
        .resource-item:hover {
            border-color: var(--primary);
            background: var(--surface-2);
        }
        .resource-item i {
            font-size: 1.3rem;
            color: var(--primary);
            flex-shrink: 0;
        }
        .resource-item span {
            font-size: 15px;
            color: var(--text-main);
            font-weight: 500;
        }
        .resource-item .resource-desc {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 400;
            margin-left: auto;
            text-align: right;
            flex-shrink: 0;
        }

        /* ===== 订阅 CTA ===== */
        .cta-panel {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 40px 32px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-panel::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 300px;
            height: 120px;
            background: radial-gradient(ellipse, rgba(124, 58, 237, 0.25), transparent);
            pointer-events: none;
        }
        .cta-panel h2 {
            font-size: 28px;
            font-weight: 700;
            letter-spacing: -0.4px;
            margin-bottom: 12px;
            color: var(--text-main);
        }
        .cta-panel p {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto 24px;
            line-height: 1.8;
        }
        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 480px;
            margin: 0 auto;
            flex-direction: column;
            align-items: center;
        }
        .subscribe-form input {
            width: 100%;
            padding: 14px 18px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            color: var(--text-main);
            font-size: 15px;
            outline: none;
            transition: all var(--transition-fast);
        }
        .subscribe-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
        }
        .subscribe-form input::placeholder {
            color: var(--text-muted);
        }

        /* ===== 风险提示 ===== */
        .risk-tip {
            background: rgba(255, 122, 0, 0.06);
            border: 1px solid rgba(255, 122, 0, 0.3);
            border-radius: 10px;
            padding: 20px 24px;
            display: flex;
            align-items: flex-start;
            gap: 14px;
        }
        .risk-tip i {
            color: var(--warning);
            font-size: 1.2rem;
            flex-shrink: 0;
            margin-top: 4px;
        }
        .risk-tip p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--surface);
            border-top: 1px solid var(--border);
            padding: 56px 0 24px;
            margin-top: 0;
        }
        .site-footer .footer-brand {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -0.4px;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .site-footer .footer-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 340px;
        }
        .site-footer h6 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 16px;
            letter-spacing: 0.04em;
        }
        .site-footer .footer-link {
            display: block;
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 10px;
            transition: color var(--transition-fast);
        }
        .site-footer .footer-link:hover {
            color: var(--primary);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid var(--border);
            margin-top: 40px;
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .site-footer .footer-bottom a {
            color: var(--text-muted);
            font-size: 13px;
        }
        .site-footer .footer-bottom a:hover {
            color: var(--primary);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .section-container {
                padding: var(--section-padding-tablet) 0;
            }
            .section-title {
                font-size: 28px;
            }
            .page-header h1 {
                font-size: 32px;
            }
            .page-header .lead {
                font-size: 16px;
            }
            .site-nav .navbar-nav {
                padding: 16px 0;
            }
            .site-nav .nav-link {
                padding: 10px 14px !important;
                margin: 4px 0;
            }
            .site-nav .d-flex.align-items-center.gap-2 {
                flex-direction: column;
                width: 100%;
                padding: 16px 0;
            }
            .btn-nav-primary,
            .btn-nav-outline {
                width: 100%;
                justify-content: center;
            }
            .announcement-item {
                flex-direction: column;
                gap: 14px;
            }
            .announcement-date {
                flex-direction: row;
                min-width: auto;
                width: fit-content;
                height: auto;
                gap: 6px;
                padding: 6px 14px;
            }
            .announcement-date .day {
                font-size: 18px;
            }
            .announcement-date .month {
                font-size: 12px;
            }
            .cta-panel {
                padding: 28px 20px;
            }
            .cta-panel h2 {
                font-size: 24px;
            }
            .resource-item {
                flex-wrap: wrap;
            }
            .resource-item .resource-desc {
                margin-left: 0;
                text-align: left;
                width: 100%;
            }
        }

        @media (max-width: 575.98px) {
            .section-container {
                padding: var(--section-padding-mobile) 0;
            }
            .section-title {
                font-size: 24px;
                letter-spacing: -0.3px;
            }
            .section-desc {
                font-size: 14px;
            }
            .page-header h1 {
                font-size: 26px;
                letter-spacing: -0.4px;
            }
            .page-header .lead {
                font-size: 14px;
            }
            .card-dark .card-cover-img {
                height: 150px;
            }
            .featured-card img {
                height: 160px;
            }
            .stat-card .stat-number {
                font-size: 32px;
            }
            .stat-card {
                padding: 16px;
            }
            .cta-panel {
                padding: 24px 16px;
            }
            .cta-panel h2 {
                font-size: 20px;
            }
            .cta-panel p {
                font-size: 13px;
            }
            .btn-primary-custom,
            .btn-outline-custom {
                padding: 10px 20px;
                font-size: 0.9rem;
                width: 100%;
                justify-content: center;
            }
            .risk-tip {
                padding: 16px 18px;
                flex-direction: column;
                gap: 10px;
            }
            .site-footer {
                padding: 40px 0 16px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .breadcrumb-item {
                font-size: 0.8rem;
            }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}