/* roulang page: index */
:root {
      --primary-dark: #161B22;
      --secondary-dark: #21262D;
      --deep-bg: #0D1117;
      --accent-red: #842029;
      --accent-gold: #C99700;
      --bg-light: #F4F6F8;
      --card-bg: #FFFFFF;
      --text-main: #24292F;
      --text-muted: #57606A;
      --border-color: #E1E4E8;
      --radius-sm: 4px;
      --radius-md: 6px;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.05), 0 4px 12px rgba(0,0,0,0.02);
      --shadow-hover: 0 8px 24px rgba(0,0,0,0.08);
      --transition-base: all 0.25s ease-in-out;
    }

    body {
      font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: var(--bg-light);
      line-height: 1.75;
      font-size: 15px;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition-base);
    }
    a:hover {
      color: var(--accent-red);
    }

    /* 顶栏导航 */
    .site-header {
      background-color: var(--primary-dark);
      border-bottom: 1px solid var(--secondary-dark);
      position: sticky;
      top: 0;
      z-index: 1020;
    }
    .brand-logo {
      font-size: 1.25rem;
      font-weight: 700;
      letter-spacing: -0.01em;
      color: #FFFFFF;
      display: flex;
      align-items: center;
      gap: 0.6rem;
    }
    .brand-logo .badge-cube {
      background: var(--accent-red);
      color: #fff;
      padding: 2px 7px;
      font-size: 0.75rem;
      border-radius: 3px;
      letter-spacing: 0.5px;
    }
    .nav-link-custom {
      color: #C9D1D9;
      font-weight: 500;
      padding: 0.5rem 0.9rem;
      border-radius: var(--radius-sm);
      font-size: 0.92rem;
    }
    .nav-link-custom:hover, .nav-link-custom.active {
      color: #FFFFFF;
      background-color: var(--secondary-dark);
    }
    .node-locator-badge {
      background-color: #0d1117;
      border: 1px solid #30363d;
      border-radius: var(--radius-sm);
      padding: 0.35rem 0.75rem;
      font-size: 0.82rem;
      color: #8b949e;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .node-locator-badge .status-ping {
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background-color: #2ea043;
      display: inline-block;
    }

    /* 区域布局规范 */
    .section-spacing {
      padding: 4.8rem 0;
    }
    .section-spacing-alt {
      padding: 4.8rem 0;
      background-color: #FFFFFF;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .section-spacing-dark {
      padding: 4.8rem 0;
      background-color: var(--deep-bg);
      color: #F0F6FC;
    }
    .section-eyebrow {
      font-size: 0.78rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.12em;
      color: var(--accent-red);
      margin-bottom: 0.4rem;
      display: block;
    }
    .section-spacing-dark .section-eyebrow {
      color: var(--accent-gold);
    }
    .section-title {
      font-size: 1.85rem;
      font-weight: 700;
      letter-spacing: -0.02em;
      margin-bottom: 1rem;
      color: var(--primary-dark);
    }
    .section-spacing-dark .section-title {
      color: #FFFFFF;
    }
    .section-desc {
      font-size: 0.98rem;
      color: var(--text-muted);
      max-width: 820px;
      margin-bottom: 2.5rem;
      line-height: 1.8;
    }
    .section-spacing-dark .section-desc {
      color: #8B949E;
    }

    /* 卡片与模块通用 */
    .custom-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      transition: var(--transition-base);
      height: 100%;
      padding: 1.75rem;
    }
    .custom-card:hover {
      box-shadow: var(--shadow-hover);
      border-color: #CCD2D9;
      transform: translateY(-2px);
    }

    /* Hero 首屏 */
    .hero-panel {
      background: linear-gradient(180deg, #161B22 0%, #0D1117 100%);
      color: #FFFFFF;
      padding: 5rem 0 4.5rem;
      border-bottom: 1px solid #30363D;
    }
    .hero-h1 {
      font-size: 2.35rem;
      font-weight: 800;
      line-height: 1.35;
      letter-spacing: -0.03em;
      margin-bottom: 1.25rem;
    }
    .hero-lead {
      font-size: 1.05rem;
      color: #C9D1D9;
      line-height: 1.8;
      margin-bottom: 2rem;
    }
    .search-console-box {
      background: #21262D;
      border: 1px solid #30363D;
      border-radius: var(--radius-sm);
      padding: 0.4rem;
      display: flex;
      gap: 8px;
    }
    .search-console-input {
      background: transparent;
      border: none;
      color: #FFFFFF;
      padding: 0.65rem 1rem;
      font-size: 0.95rem;
      flex-grow: 1;
      outline: none;
    }
    .search-console-input::placeholder {
      color: #8B949E;
    }
    .btn-action-dark {
      background: var(--accent-red);
      color: #FFFFFF;
      font-weight: 600;
      border: none;
      padding: 0.65rem 1.4rem;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: var(--transition-base);
    }
    .btn-action-dark:hover {
      background: #a32833;
      color: #FFFFFF;
    }

    /* 指标小卡 */
    .hero-metric-item {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid #30363D;
      border-radius: var(--radius-sm);
      padding: 1.25rem;
    }
    .hero-metric-val {
      font-size: 1.9rem;
      font-weight: 800;
      color: #FFFFFF;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
      line-height: 1.1;
      margin-bottom: 0.35rem;
    }
    .hero-metric-label {
      font-size: 0.84rem;
      color: #8B949E;
    }

    /* 数据对比表格 */
    .benchmark-table {
      width: 100%;
      border-collapse: separate;
      border-spacing: 0;
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .benchmark-table th {
      background: #F6F8FA;
      color: var(--primary-dark);
      font-weight: 600;
      font-size: 0.9rem;
      padding: 1rem 1.25rem;
      border-bottom: 1px solid var(--border-color);
    }
    .benchmark-table td {
      padding: 1.1rem 1.25rem;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.92rem;
      color: var(--text-main);
    }
    .benchmark-table tr:last-child td {
      border-bottom: none;
    }

    /* 时间轴组件 */
    .milestone-timeline {
      position: relative;
      padding-left: 2rem;
      border-left: 2px solid var(--border-color);
    }
    .milestone-node {
      position: relative;
      margin-bottom: 2.2rem;
    }
    .milestone-node:last-child {
      margin-bottom: 0;
    }
    .milestone-pin {
      position: absolute;
      left: -2.6rem;
      top: 0.2rem;
      width: 18px;
      height: 18px;
      border-radius: 50%;
      background: #FFFFFF;
      border: 4px solid var(--accent-red);
    }
    .milestone-year {
      font-family: ui-monospace, SFMono-Regular, monospace;
      font-weight: 700;
      color: var(--accent-red);
      font-size: 0.95rem;
      margin-bottom: 0.25rem;
    }

    /* 资讯板块 */
    .article-lead-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 2.2rem;
      height: 100%;
    }
    .article-item-row {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 1.2rem 1.4rem;
      margin-bottom: 1rem;
      transition: var(--transition-base);
    }
    .article-item-row:hover {
      border-color: #0969da;
      box-shadow: var(--shadow-sm);
    }

    /* 状态指示条 */
    .node-status-bar {
      background: #161B22;
      border: 1px solid #30363D;
      border-radius: var(--radius-sm);
      padding: 1rem 1.25rem;
      color: #C9D1D9;
      font-size: 0.9rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 0.8rem;
    }

    /* 手风琴 FAQ */
    .custom-accordion .accordion-item {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm) !important;
      margin-bottom: 0.85rem;
      overflow: hidden;
      background: #FFFFFF;
    }
    .custom-accordion .accordion-button {
      font-weight: 600;
      color: var(--primary-dark);
      background: #FFFFFF;
      padding: 1.15rem 1.4rem;
      box-shadow: none;
    }
    .custom-accordion .accordion-button:not(.collapsed) {
      background: #F6F8FA;
      color: var(--accent-red);
    }
    .custom-accordion .accordion-body {
      padding: 1.25rem 1.4rem;
      color: var(--text-muted);
      line-height: 1.8;
      font-size: 0.93rem;
    }

    /* 表单控件 */
    .form-control-custom {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 0.65rem 0.9rem;
      font-size: 0.92rem;
    }
    .form-control-custom:focus {
      border-color: var(--accent-red);
      box-shadow: 0 0 0 3px rgba(132, 32, 41, 0.15);
    }

    /* 页脚样式 */
    .site-footer {
      background-color: var(--primary-dark);
      color: #8B949E;
      padding: 4.5rem 0 2rem;
      border-top: 1px solid #30363D;
      font-size: 0.88rem;
    }
    .footer-heading {
      color: #FFFFFF;
      font-size: 0.95rem;
      font-weight: 700;
      margin-bottom: 1.25rem;
      letter-spacing: -0.01em;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 0.65rem;
    }
    .footer-links a {
      color: #8B949E;
    }
    .footer-links a:hover {
      color: #FFFFFF;
    }
    .footer-bottom {
      margin-top: 3.5rem;
      padding-top: 1.5rem;
      border-top: 1px solid #21262D;
      font-size: 0.82rem;
    }

    /* 移动端断点适配 */
    @media (max-width: 991.98px) {
      .hero-h1 {
        font-size: 1.95rem;
      }
      .section-spacing, .section-spacing-alt, .section-spacing-dark {
        padding: 3.5rem 0;
      }
    }
    @media (max-width: 575.98px) {
      .hero-h1 {
        font-size: 1.65rem;
      }
      .search-console-box {
        flex-direction: column;
      }
      .btn-action-dark {
        width: 100%;
        justify-content: center;
      }
    }

/* roulang page: category1 */
:root {
            --primary-dark: #161B22;
            --secondary-dark: #21262D;
            --deep-bg: #0D1117;
            --accent-red: #842029;
            --accent-gold: #C99700;
            --bg-light: #F4F6F8;
            --card-bg: #FFFFFF;
            --text-main: #24292F;
            --text-muted: #57606A;
            --border-color: #E1E4E8;
            --radius-sm: 4px;
            --radius-md: 6px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.05), 0 4px 12px rgba(0,0,0,0.02);
            --shadow-hover: 0 8px 24px rgba(0,0,0,0.08);
            --transition-base: all 0.25s ease-in-out;
        }
        body {
            font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: var(--text-main);
            background-color: var(--bg-light);
            line-height: 1.75;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-base);
        }
        a:hover {
            color: var(--accent-red);
        }
        .site-header {
            background-color: var(--primary-dark);
            border-bottom: 1px solid var(--secondary-dark);
            position: sticky;
            top: 0;
            z-index: 1020;
        }
        .brand-logo {
            font-size: 1.25rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: #FFFFFF;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .brand-logo .badge-cube {
            background: var(--accent-red);
            color: #fff;
            padding: 2px 7px;
            font-size: 0.75rem;
            border-radius: 3px;
            letter-spacing: 0.5px;
        }
        .nav-link-custom {
            color: #C9D1D9;
            font-weight: 500;
            padding: 0.5rem 0.9rem;
            border-radius: var(--radius-sm);
            font-size: 0.92rem;
        }
        .nav-link-custom:hover, .nav-link-custom.active {
            color: #FFFFFF;
            background-color: var(--secondary-dark);
        }
        .node-locator-badge {
            background-color: #0d1117;
            border: 1px solid #30363d;
            border-radius: var(--radius-sm);
            padding: 0.35rem 0.75rem;
            font-size: 0.82rem;
            color: #8b949e;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .node-locator-badge .status-ping {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background-color: #2ea043;
            display: inline-block;
        }
        .section-spacing {
            padding: 4.5rem 0;
        }
        .section-spacing-alt {
            padding: 4.5rem 0;
            background-color: #FFFFFF;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .section-spacing-dark {
            padding: 4.5rem 0;
            background-color: var(--deep-bg);
            color: #F0F6FC;
        }
        .section-eyebrow {
            font-size: 0.78rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            color: var(--accent-red);
            margin-bottom: 0.4rem;
            display: block;
        }
        .section-spacing-dark .section-eyebrow {
            color: var(--accent-gold);
        }
        .section-title {
            font-size: 1.85rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            margin-bottom: 1rem;
            color: var(--primary-dark);
        }
        .section-spacing-dark .section-title {
            color: #FFFFFF;
        }
        .section-desc {
            font-size: 0.98rem;
            color: var(--text-muted);
            max-width: 820px;
            margin-bottom: 2.5rem;
            line-height: 1.8;
        }
        .section-spacing-dark .section-desc {
            color: #8B949E;
        }
        .custom-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: var(--transition-base);
            height: 100%;
            padding: 1.75rem;
        }
        .custom-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: #CCD2D9;
            transform: translateY(-2px);
        }
        .fission-hero {
            background: linear-gradient(135deg, #161B22 0%, #0D1117 100%);
            color: #FFFFFF;
            padding: 4rem 0 3.5rem;
            border-bottom: 1px solid #30363D;
        }
        .fission-hero h1 {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.3;
            margin-bottom: 0.8rem;
        }
        .fission-summary {
            font-size: 0.96rem;
            color: #C9D1D9;
            line-height: 1.8;
            margin-bottom: 1.8rem;
        }
        .invite-tier-box {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid #30363D;
            border-radius: var(--radius-md);
            padding: 1.6rem;
        }
        .invite-progress-meta {
            display: flex;
            justify-content: space-between;
            font-size: 0.85rem;
            color: #8B949E;
            margin-bottom: 0.5rem;
        }
        .invite-progress-meta strong {
            color: #F0F6FC;
        }
        .custom-progress {
            height: 8px;
            background-color: #21262D;
            border-radius: 4px;
            overflow: hidden;
            margin-bottom: 1.25rem;
        }
        .custom-progress-bar {
            background: linear-gradient(90deg, var(--accent-red) 0%, var(--accent-gold) 100%);
            height: 100%;
        }
        .reward-pill-row {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 1.5rem;
        }
        .reward-pill {
            background: #21262D;
            border: 1px solid #30363D;
            border-radius: 4px;
            padding: 0.35rem 0.8rem;
            font-size: 0.82rem;
            color: #C9D1D9;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .reward-pill i {
            color: var(--accent-gold);
        }
        .btn-fission-action {
            background: var(--accent-red);
            color: #FFFFFF;
            border: none;
            font-weight: 600;
            padding: 0.75rem 1.6rem;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition-base);
        }
        .btn-fission-action:hover {
            background: #a32833;
            color: #FFFFFF;
        }
        .filter-console {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            box-shadow: var(--shadow-sm);
            margin-top: -2.5rem;
            position: relative;
            z-index: 10;
        }
        .filter-group-label {
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 0.5rem;
        }
        .filter-tags-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .filter-tag-btn {
            border: 1px solid var(--border-color);
            background: #F4F6F8;
            color: var(--text-main);
            font-size: 0.82rem;
            padding: 0.25rem 0.75rem;
            border-radius: var(--radius-sm);
            transition: var(--transition-base);
        }
        .filter-tag-btn:hover, .filter-tag-btn.active {
            background: var(--primary-dark);
            color: #FFFFFF;
            border-color: var(--primary-dark);
        }
        .movie-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .movie-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: #CCD2D9;
            transform: translateY(-3px);
        }
        .movie-cover-wrap {
            position: relative;
            background: #161B22;
            padding-top: 135%;
            overflow: hidden;
        }
        .movie-cover-content {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            padding: 1rem;
            background: linear-gradient(180deg, rgba(22,27,34,0.4) 0%, rgba(13,17,23,0.92) 100%);
        }
        .movie-badges {
            display: flex;
            gap: 5px;
            flex-wrap: wrap;
        }
        .badge-meta {
            font-size: 0.7rem;
            font-weight: 700;
            padding: 2px 6px;
            border-radius: 2px;
            text-transform: uppercase;
        }
        .badge-hdr { background: #842029; color: #fff; }
        .badge-codec { background: #21262D; color: #58a6ff; border: 1px solid #30363D; }
        .badge-score { background: #C99700; color: #161B22; font-weight: 800; }
        .movie-meta-bottom {
            color: #C9D1D9;
        }
        .movie-code-tag {
            font-family: ui-monospace, SFMono-Regular, monospace;
            font-size: 0.78rem;
            color: #8B949E;
            display: block;
        }
        .movie-info-body {
            padding: 1.25rem;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .movie-title {
            font-size: 1rem;
            font-weight: 700;
            line-height: 1.45;
            margin-bottom: 0.6rem;
            color: var(--primary-dark);
        }
        .movie-desc-snip {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 1rem;
        }
        .movie-tech-specs {
            border-top: 1px solid #F0F2F5;
            padding-top: 0.75rem;
            font-size: 0.78rem;
            color: #57606A;
            display: flex;
            justify-content: space-between;
        }
        .custom-pagination {
            display: flex;
            justify-content: center;
            gap: 6px;
            margin-top: 3rem;
        }
        .page-node {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border-color);
            background: #FFFFFF;
            border-radius: var(--radius-sm);
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text-main);
        }
        .page-node.active {
            background: var(--primary-dark);
            color: #FFFFFF;
            border-color: var(--primary-dark);
        }
        .page-node:hover:not(.active) {
            border-color: var(--accent-red);
            color: var(--accent-red);
        }
        .curator-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .radar-metric-bar {
            margin-bottom: 0.9rem;
        }
        .radar-metric-label {
            display: flex;
            justify-content: space-between;
            font-size: 0.82rem;
            font-weight: 600;
            margin-bottom: 0.3rem;
            color: var(--text-main);
        }
        .radar-progress {
            height: 6px;
            background: #E1E4E8;
            border-radius: 3px;
            overflow: hidden;
        }
        .radar-fill {
            background: var(--accent-red);
            height: 100%;
        }
        .contrast-table-box {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
        }
        .contrast-col-header {
            padding: 1.25rem 1.5rem;
            font-weight: 700;
            font-size: 1rem;
            border-bottom: 2px solid var(--border-color);
        }
        .contrast-cell {
            padding: 1.25rem 1.5rem;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.9rem;
            line-height: 1.7;
        }
        .faq-grid-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.6rem;
            height: 100%;
        }
        .faq-grid-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 0.75rem;
        }
        .tag-cloud-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-cloud-item {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: 3px;
            padding: 0.35rem 0.75rem;
            font-size: 0.82rem;
            color: var(--text-muted);
            font-family: ui-monospace, SFMono-Regular, monospace;
        }
        .tag-cloud-item:hover {
            border-color: var(--accent-red);
            color: var(--accent-red);
            background: #FFF5F5;
        }
        .site-footer {
            background-color: var(--deep-bg);
            color: #8B949E;
            padding: 4.5rem 0 2rem;
            border-top: 1px solid #30363D;
            font-size: 0.88rem;
        }
        .footer-heading {
            color: #FFFFFF;
            font-size: 0.95rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            margin-bottom: 1.25rem;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 0.65rem;
        }
        .footer-links a {
            color: #8B949E;
        }
        .footer-links a:hover {
            color: #FFFFFF;
        }
        .footer-bottom {
            border-top: 1px solid #21262D;
            padding-top: 2rem;
            margin-top: 3rem;
            font-size: 0.82rem;
        }
        @media (max-width: 991px) {
            .filter-console {
                margin-top: 1.5rem;
            }
            .section-spacing, .section-spacing-alt, .section-spacing-dark {
                padding: 3.2rem 0;
            }
        }

/* 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}