/* roulang page: index */
:root {
            --primary: #6C38CC;
            --primary-hover: #5629AA;
            --primary-light: rgba(108, 56, 204, 0.08);
            --accent: #FF2E93;
            --accent-hover: #E01B7C;
            --accent-light: rgba(255, 46, 147, 0.1);
            --bg-body: #F7F8FC;
            --bg-card: #FFFFFF;
            --bg-subtle: #EFF2F7;
            --text-main: #1E202B;
            --text-muted: #60647A;
            --border-color: #E2E5F0;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 6px -1px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 20px -2px rgba(108, 56, 204, 0.06), 0 2px 6px -1px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 12px 30px -4px rgba(108, 56, 204, 0.14), 0 4px 10px -2px rgba(255, 46, 147, 0.08);
            --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-body);
            color: var(--text-main);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        h1, h2, h3, h4, h5, h6 {
            color: var(--text-main);
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.02em;
        }

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

        /* 侧边栏垂直导航 */
        .app-sidebar {
            width: 260px;
            height: 100vh;
            position: sticky;
            top: 0;
            background: var(--bg-card);
            border-right: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            padding: 24px 18px;
            z-index: 1020;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            text-decoration: none;
        }
        .brand-logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            box-shadow: 0 4px 12px rgba(108, 56, 204, 0.28);
        }

        .sidebar-nav {
            list-style: none;
            padding: 0;
            margin: 28px 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .sidebar-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            color: var(--text-muted);
            font-weight: 600;
            border-radius: var(--radius-md);
            transition: var(--transition);
        }
        .sidebar-link:hover {
            background-color: var(--primary-light);
            color: var(--primary);
        }
        .sidebar-link.active {
            background-color: var(--primary);
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(108, 56, 204, 0.25);
        }
        .sidebar-link.active i {
            color: #ffffff;
        }

        .sidebar-status-card {
            background-color: var(--bg-subtle);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 14px;
        }

        /* 移动端顶栏与抽屉 */
        .mobile-header {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border-color);
            height: 64px;
            padding: 0 16px;
            position: sticky;
            top: 0;
            z-index: 1040;
        }

        /* 主内容区域排版 */
        .main-wrapper {
            flex: 1;
            min-width: 0;
        }

        .content-section {
            padding: 64px 0;
        }
        .content-section-alt {
            background-color: var(--bg-subtle);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .section-header {
            max-width: 720px;
            margin-bottom: 44px;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 12px;
            text-transform: uppercase;
        }
        .section-tag-accent {
            color: var(--accent);
            background: var(--accent-light);
        }

        /* 按钮与徽章定制 */
        .btn {
            padding: 11px 24px;
            border-radius: var(--radius-md);
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-primary {
            background-color: var(--primary);
            border-color: var(--primary);
        }
        .btn-primary:hover, .btn-primary:focus {
            background-color: var(--primary-hover);
            border-color: var(--primary-hover);
            box-shadow: 0 4px 16px rgba(108, 56, 204, 0.35);
        }
        .btn-accent {
            background-color: var(--accent);
            border-color: var(--accent);
            color: #ffffff;
        }
        .btn-accent:hover, .btn-accent:focus {
            background-color: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #ffffff;
            box-shadow: 0 4px 16px rgba(255, 46, 147, 0.35);
        }
        .btn-outline-custom {
            border: 1px solid var(--border-color);
            background: #ffffff;
            color: var(--text-main);
        }
        .btn-outline-custom:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }

        /* 矮横幅 Hero 结构 */
        .hero-banner-wrap {
            position: relative;
            background: #ffffff;
            border-bottom: 1px solid var(--border-color);
            padding: 48px 0;
            overflow: hidden;
        }
        .hero-bg-cover {
            position: absolute;
            right: 0;
            top: 0;
            width: 45%;
            height: 100%;
            object-fit: cover;
            opacity: 0.12;
            pointer-events: none;
            mask-image: linear-gradient(to left, rgba(0,0,0,1) 0%, rgba(0,0,0,0) 100%);
            -webkit-mask-image: linear-gradient(to left, rgba(0,0,0,1) 0%, rgba(0,0,0,0) 100%);
        }

        .pulse-indicator {
            display: inline-block;
            width: 8px;
            height: 8px;
            background-color: #10B981;
            border-radius: 50%;
            box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
            animation: pulse-ring 2s infinite;
        }
        @keyframes pulse-ring {
            0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
            70% { box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
            100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
        }

        /* 统一卡片质感 */
        .ui-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .ui-card:hover {
            transform: translateY(-4px);
            border-color: rgba(108, 56, 204, 0.3);
            box-shadow: var(--shadow-hover);
        }

        .metric-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
        }

        /* 社区帖子/话题条目 */
        .forum-thread-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            transition: var(--transition);
        }
        .forum-thread-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }

        /* 常见问答手风琴 */
        .accordion-item {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md) !important;
            margin-bottom: 12px;
            overflow: hidden;
        }
        .accordion-button {
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-main);
            background-color: var(--bg-card);
            box-shadow: none !important;
            padding: 18px 24px;
        }
        .accordion-button:not(.collapsed) {
            color: var(--primary);
            background-color: var(--primary-light);
        }
        .accordion-body {
            color: var(--text-muted);
            padding: 16px 24px 22px 24px;
            line-height: 1.8;
        }

        /* 极速转化区 */
        .conversion-box {
            background: linear-gradient(135deg, #4E2399 0%, #6C38CC 50%, #2A115E 100%);
            border-radius: var(--radius-lg);
            color: #ffffff;
            padding: 56px 40px;
            position: relative;
            overflow: hidden;
        }
        .conversion-box::after {
            content: "";
            position: absolute;
            right: -60px;
            bottom: -60px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(255,46,147,0.3) 0%, rgba(255,46,147,0) 70%);
            pointer-events: none;
        }

        /* 页脚 */
        .site-footer {
            background: #15161E;
            color: #9296A8;
            padding: 50px 0 30px;
            font-size: 0.92rem;
            border-top: 1px solid #232530;
        }
        .site-footer a {
            color: #A0A5BA;
        }
        .site-footer a:hover {
            color: #ffffff;
        }

        @media (max-width: 991.98px) {
            .app-sidebar {
                display: none;
            }
            .content-section {
                padding: 44px 0;
            }
            .hero-bg-cover {
                display: none;
            }
        }

/* roulang page: article */
:root {
            --primary: #6C38CC;
            --primary-hover: #5629AA;
            --primary-light: rgba(108, 56, 204, 0.08);
            --accent: #FF2E93;
            --accent-hover: #E01B7C;
            --accent-light: rgba(255, 46, 147, 0.1);
            --bg-body: #F7F8FC;
            --bg-card: #FFFFFF;
            --bg-subtle: #EFF2F7;
            --text-main: #1E202B;
            --text-muted: #60647A;
            --border-color: #E2E5F0;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 6px -1px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 20px -2px rgba(108, 56, 204, 0.06), 0 2px 6px -1px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 12px 30px -4px rgba(108, 56, 204, 0.14), 0 4px 10px -2px rgba(255, 46, 147, 0.08);
            --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-body);
            color: var(--text-main);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-hover);
        }
        .page-container {
            display: flex;
            min-height: 100vh;
        }
        .sidebar-wrapper {
            width: 260px;
            flex-shrink: 0;
            background: #ffffff;
            border-right: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            height: 100vh;
            overflow-y: auto;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            padding: 24px 20px;
            z-index: 1020;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            text-decoration: none;
        }
        .brand-logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            box-shadow: 0 4px 12px rgba(108, 56, 204, 0.28);
        }
        .sidebar-nav {
            list-style: none;
            padding: 0;
            margin: 28px 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .sidebar-nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            color: var(--text-muted);
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition);
        }
        .sidebar-nav-link:hover {
            background-color: var(--primary-light);
            color: var(--primary);
        }
        .sidebar-nav-link.active {
            background-color: var(--primary);
            color: #ffffff;
            box-shadow: 0 4px 16px rgba(108, 56, 204, 0.3);
        }
        .sidebar-status-card {
            background-color: var(--bg-subtle);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 14px;
        }
        .mobile-header {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border-color);
            height: 64px;
            padding: 0 16px;
            position: sticky;
            top: 0;
            z-index: 1040;
        }
        .main-wrapper {
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
        }
        .article-hero {
            background: #ffffff;
            border-bottom: 1px solid var(--border-color);
            padding: 44px 0 36px 0;
            position: relative;
        }
        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .article-breadcrumb a {
            color: var(--text-muted);
        }
        .article-breadcrumb a:hover {
            color: var(--primary);
        }
        .article-h1 {
            font-size: 2.1rem;
            font-weight: 800;
            line-height: 1.35;
            letter-spacing: -0.02em;
            color: var(--text-main);
            margin-bottom: 18px;
            max-width: 820px;
        }
        .article-meta-bar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            font-size: 0.88rem;
            color: var(--text-muted);
        }
        .meta-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--bg-subtle);
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            border: 1px solid var(--border-color);
        }
        .article-body-container {
            max-width: 760px;
            margin: 0 auto;
        }
        .article-body-content {
            font-size: 1.05rem;
            line-height: 1.85;
            color: #2b2e3d;
        }
        .article-body-content p {
            margin-bottom: 1.35rem;
        }
        .article-body-content h2 {
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--text-main);
            margin-top: 2.4rem;
            margin-bottom: 1rem;
            padding-bottom: 8px;
            border-bottom: 2px solid var(--primary-light);
        }
        .article-body-content h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-main);
            margin-top: 1.8rem;
            margin-bottom: 0.8rem;
        }
        .article-body-content ul, .article-body-content ol {
            margin-bottom: 1.35rem;
            padding-left: 1.5rem;
        }
        .article-body-content li {
            margin-bottom: 0.5rem;
        }
        .article-body-content blockquote {
            margin: 1.5rem 0;
            padding: 16px 20px;
            background: var(--primary-light);
            border-left: 4px solid var(--primary);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: var(--text-main);
            font-style: normal;
        }
        .article-body-content img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius-md);
            margin: 1.5rem 0;
            border: 1px solid var(--border-color);
        }
        .article-share-strip {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 40px;
            box-shadow: var(--shadow-sm);
        }
        .share-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .share-btn {
            border: 1px solid var(--border-color);
            background: var(--bg-subtle);
            color: var(--text-main);
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            font-size: 0.85rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .share-btn:hover {
            background: #ffffff;
            border-color: var(--primary);
            color: var(--primary);
        }
        .nav-adjacent-strip {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-top: 24px;
        }
        @media (max-width: 576px) {
            .nav-adjacent-strip {
                grid-template-columns: 1fr;
            }
        }
        .adjacent-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .adjacent-card:hover {
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }
        .adjacent-label {
            font-size: 0.78rem;
            color: var(--text-muted);
            text-transform: uppercase;
            font-weight: 700;
        }
        .adjacent-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.4;
        }
        .ui-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .ui-card:hover {
            transform: translateY(-4px);
            border-color: rgba(108, 56, 204, 0.4);
            box-shadow: var(--shadow-hover);
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 12px;
            text-transform: uppercase;
        }
        .site-footer {
            background: #12131A;
            color: #8C90A4;
            padding: 56px 0 32px 0;
            border-top: 1px solid #232533;
        }
        .site-footer a {
            color: #8C90A4;
        }
        .site-footer a:hover {
            color: #ffffff;
        }
        .btn-custom-primary {
            background-color: var(--primary);
            border-color: var(--primary);
            color: #ffffff;
            padding: 10px 22px;
            border-radius: var(--radius-md);
            font-weight: 600;
        }
        .btn-custom-primary:hover {
            background-color: var(--primary-hover);
            color: #ffffff;
            box-shadow: 0 4px 16px rgba(108, 56, 204, 0.35);
        }
        .btn-outline-custom {
            border: 1px solid var(--border-color);
            background: #ffffff;
            color: var(--text-main);
        }
        .btn-outline-custom:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }

/* roulang page: category1 */
:root {
            --primary: #6C38CC;
            --primary-hover: #5629AA;
            --primary-light: rgba(108, 56, 204, 0.08);
            --accent: #FF2E93;
            --accent-hover: #E01B7C;
            --accent-light: rgba(255, 46, 147, 0.1);
            --bg-body: #F7F8FC;
            --bg-card: #FFFFFF;
            --bg-subtle: #EFF2F7;
            --text-main: #1E202B;
            --text-muted: #60647A;
            --border-color: #E2E5F0;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 6px -1px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 20px -2px rgba(108, 56, 204, 0.06), 0 2px 6px -1px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 12px 30px -4px rgba(108, 56, 204, 0.14), 0 4px 10px -2px rgba(255, 46, 147, 0.08);
            --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-body);
            color: var(--text-main);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-hover);
        }
        .site-layout {
            display: flex;
            min-height: 100vh;
        }
        .sidebar {
            width: 260px;
            background: #ffffff;
            border-right: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            height: 100vh;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            padding: 24px;
            z-index: 1030;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            text-decoration: none;
        }
        .brand-logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            box-shadow: 0 4px 12px rgba(108, 56, 204, 0.28);
        }
        .sidebar-nav {
            list-style: none;
            padding: 0;
            margin: 28px 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .sidebar-nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            color: var(--text-muted);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
        }
        .sidebar-nav-link:hover {
            color: var(--primary);
            background-color: var(--primary-light);
        }
        .sidebar-nav-link.active {
            color: #ffffff;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
            box-shadow: 0 4px 14px rgba(108, 56, 204, 0.3);
        }
        .sidebar-status-card {
            background-color: var(--bg-subtle);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 14px;
        }
        .mobile-header {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border-color);
            height: 64px;
            padding: 0 16px;
            position: sticky;
            top: 0;
            z-index: 1040;
        }
        .main-wrapper {
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
        }
        .content-section {
            padding: 56px 0;
        }
        .content-section-alt {
            background-color: var(--bg-subtle);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .section-header {
            max-width: 720px;
            margin-bottom: 36px;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 12px;
            text-transform: uppercase;
        }
        .section-tag-accent {
            color: var(--accent);
            background: var(--accent-light);
        }
        .btn {
            padding: 10px 20px;
            border-radius: var(--radius-md);
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-primary {
            background-color: var(--primary);
            border-color: var(--primary);
        }
        .btn-primary:hover, .btn-primary:focus {
            background-color: var(--primary-hover);
            border-color: var(--primary-hover);
            box-shadow: 0 4px 16px rgba(108, 56, 204, 0.35);
        }
        .btn-accent {
            background-color: var(--accent);
            border-color: var(--accent);
            color: #ffffff;
        }
        .btn-accent:hover, .btn-accent:focus {
            background-color: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #ffffff;
            box-shadow: 0 4px 16px rgba(255, 46, 147, 0.35);
        }
        .btn-outline-custom {
            border: 1px solid var(--border-color);
            background: #ffffff;
            color: var(--text-main);
        }
        .btn-outline-custom:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }
        .ui-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .ui-card:hover {
            transform: translateY(-4px);
            border-color: rgba(108, 56, 204, 0.4);
            box-shadow: var(--shadow-hover);
        }
        .category-hero {
            background: #ffffff;
            border-bottom: 1px solid var(--border-color);
            padding: 40px 0;
        }
        .filter-chip-group {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
        }
        .filter-chip {
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            background: #ffffff;
            border: 1px solid var(--border-color);
            font-size: 0.88rem;
            color: var(--text-muted);
            cursor: pointer;
            transition: var(--transition);
        }
        .filter-chip.active, .filter-chip:hover {
            background: var(--primary);
            color: #ffffff;
            border-color: var(--primary);
        }
        .stream-spec-box {
            background: var(--bg-card);
            border: 1px dashed var(--border-color);
            border-radius: var(--radius-md);
            padding: 16px;
        }
        .checklist-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 12px;
            border-radius: var(--radius-md);
            background: #ffffff;
            border: 1px solid var(--border-color);
        }
        .checklist-item i {
            color: #10B981;
            margin-top: 4px;
        }
        .site-footer {
            background: #171821;
            color: #9A9EAF;
            padding: 54px 0 24px;
            border-top: 1px solid #282A3A;
        }
        .site-footer a {
            color: #9A9EAF;
        }
        .site-footer a:hover {
            color: #ffffff;
        }
        @media (max-width: 991.98px) {
            .sidebar {
                display: none;
            }
        }

/* 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}