/* roulang page: index */
:root {
      --bg-deep: #070b14;
      --bg-subtle: #0b1324;
      --bg-card: rgba(15, 23, 42, 0.75);
      --border-card: rgba(148, 163, 184, 0.12);
      --primary-cyan: #06b6d4;
      --primary-blue: #38bdf8;
      --accent-purple: #818cf8;
      --accent-pink: #f43f5e;
      --text-main: #f8fafc;
      --text-muted: #94a3b8;
      --text-dim: #64748b;
      --radius-sm: 8px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --glow-cyan: 0 0 25px -5px rgba(56, 189, 248, 0.4), 0 8px 20px -6px rgba(6, 182, 212, 0.3);
      --glow-pink: 0 0 20px -4px rgba(244, 63, 94, 0.4);
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      background-color: var(--bg-deep);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      line-height: 1.65;
      overflow-x: hidden;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }

    /* SaaS 浮动命令栏导航 */
    .saas-nav-container {
      position: sticky;
      top: 16px;
      z-index: 1030;
      padding: 0 20px;
    }
    .saas-nav {
      background: rgba(11, 19, 36, 0.82);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
      border: 1px solid rgba(56, 189, 248, 0.22);
      border-radius: var(--radius-lg);
      padding: 12px 28px;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    }
    .nav-brand-text {
      font-size: 1.25rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      background: linear-gradient(135deg, #ffffff 30%, var(--primary-blue) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .brand-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 34px;
      height: 34px;
      background: linear-gradient(135deg, var(--primary-cyan), var(--primary-blue));
      border-radius: var(--radius-sm);
      color: #070b14;
      font-size: 1rem;
    }
    .nav-menu-links .nav-link {
      color: var(--text-muted);
      font-size: 0.95rem;
      font-weight: 500;
      padding: 8px 16px;
      border-radius: 30px;
      transition: all 0.2s ease;
    }
    .nav-menu-links .nav-link:hover, .nav-menu-links .nav-link.active {
      color: #ffffff;
      background: rgba(255, 255, 255, 0.06);
    }
    .command-search {
      background: rgba(15, 23, 42, 0.9);
      border: 1px solid rgba(148, 163, 184, 0.2);
      border-radius: 30px;
      padding: 6px 14px;
      display: flex;
      align-items: center;
      gap: 10px;
      color: var(--text-muted);
      font-size: 0.85rem;
      min-width: 170px;
    }
    .kbd-shortcut {
      background: rgba(255, 255, 255, 0.1);
      border-radius: 4px;
      padding: 2px 6px;
      font-size: 0.75rem;
      font-weight: 600;
      color: var(--primary-blue);
    }
    .btn-glow-cyan {
      background: linear-gradient(135deg, var(--primary-cyan) 0%, var(--primary-blue) 100%);
      color: #070b14;
      font-weight: 700;
      border: none;
      border-radius: 30px;
      padding: 9px 22px;
      box-shadow: var(--glow-cyan);
      transition: all 0.25s ease;
      white-space: nowrap;
    }
    .btn-glow-cyan:hover {
      transform: translateY(-2px);
      box-shadow: 0 0 30px rgba(56, 189, 248, 0.6);
      color: #000;
    }
    .btn-glow-secondary {
      background: rgba(255, 255, 255, 0.05);
      color: var(--text-main);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: 30px;
      padding: 9px 22px;
      font-weight: 600;
      transition: all 0.2s ease;
    }
    .btn-glow-secondary:hover {
      background: rgba(255, 255, 255, 0.12);
      color: #fff;
      border-color: var(--primary-blue);
    }

    /* 模块通用样式 */
    section {
      padding: 75px 0;
      position: relative;
    }
    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      margin-bottom: 12px;
      color: #ffffff;
    }
    .section-desc {
      color: var(--text-muted);
      font-size: 1.05rem;
      max-width: 820px;
      margin-bottom: 38px;
    }
    .glass-card {
      background: linear-gradient(135deg, rgba(30, 41, 59, 0.65) 0%, rgba(15, 23, 42, 0.5) 100%);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-md);
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .glass-card:hover {
      border-color: rgba(56, 189, 248, 0.35);
      transform: translateY(-3px);
      box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
    }
    .pill-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(6, 182, 212, 0.12);
      color: var(--primary-cyan);
      border: 1px solid rgba(6, 182, 212, 0.28);
      padding: 5px 14px;
      border-radius: 30px;
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 18px;
    }
    .badge-pink {
      background: rgba(244, 63, 94, 0.12);
      color: var(--accent-pink);
      border-color: rgba(244, 63, 94, 0.3);
    }

    /* 板块一：Hero 错位视窗 (5:7 错位) */
    .hero-section {
      padding-top: 55px;
      padding-bottom: 85px;
    }
    .hero-title {
      font-size: 3rem;
      font-weight: 800;
      line-height: 1.2;
      margin-bottom: 22px;
      letter-spacing: -1px;
    }
    .hero-text {
      color: var(--text-muted);
      font-size: 1.12rem;
      line-height: 1.75;
      margin-bottom: 30px;
    }
    .hero-kpi-bar {
      display: flex;
      gap: 25px;
      margin-top: 32px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .hero-kpi-item .num {
      font-size: 1.65rem;
      font-weight: 800;
      color: var(--primary-blue);
    }
    .hero-kpi-item .label {
      font-size: 0.82rem;
      color: var(--text-dim);
    }
    .hero-stage-card {
      background: linear-gradient(145deg, rgba(30, 41, 59, 0.8) 0%, rgba(11, 19, 36, 0.95) 100%);
      border: 1px solid rgba(56, 189, 248, 0.28);
      border-radius: var(--radius-lg);
      padding: 26px;
      box-shadow: var(--glow-cyan);
      position: relative;
    }
    .terminal-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding-bottom: 12px;
      margin-bottom: 18px;
    }
    .dot-group {
      display: flex;
      gap: 6px;
    }
    .dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
    }
    .dot-red { background: #ef4444; }
    .dot-yellow { background: #f59e0b; }
    .dot-green { background: #10b981; }

    /* 板块二：指标看板 */
    .metric-card {
      padding: 24px;
      text-align: left;
    }
    .metric-val {
      font-size: 2.2rem;
      font-weight: 800;
      color: #fff;
      font-family: monospace;
      margin: 8px 0;
    }
    .trend-indicator {
      font-size: 0.85rem;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .trend-up { color: #10b981; }
    .trend-blue { color: var(--primary-blue); }

    /* 板块三：服务矩阵 */
    .service-shelf-card {
      padding: 28px;
      height: 100%;
      position: relative;
    }
    .shelf-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: rgba(6, 182, 212, 0.12);
      color: var(--primary-cyan);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.35rem;
      margin-bottom: 18px;
      border: 1px solid rgba(6, 182, 212, 0.25);
    }
    .card-title-sm {
      font-size: 1.22rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: #ffffff;
    }
    .status-indicator-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      display: inline-block;
      margin-right: 6px;
      background-color: #10b981;
      box-shadow: 0 0 8px #10b981;
    }

    /* 板块四：分类专属入口 */
    .portal-card {
      padding: 30px;
      position: relative;
      overflow: hidden;
      border-left: 4px solid var(--primary-cyan);
    }
    .portal-card.card-alt {
      border-left-color: var(--accent-purple);
    }
    .portal-action-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-weight: 600;
      color: var(--primary-blue);
      margin-top: 15px;
    }
    .portal-action-link:hover {
      color: #fff;
      transform: translateX(4px);
    }

    /* 板块五：对比表格 */
    .custom-table {
      width: 100%;
      border-collapse: separate;
      border-spacing: 0;
      border: 1px solid var(--border-card);
      border-radius: var(--radius-md);
      overflow: hidden;
      background: var(--bg-card);
    }
    .custom-table th, .custom-table td {
      padding: 18px 22px;
      border-bottom: 1px solid var(--border-card);
      vertical-align: middle;
    }
    .custom-table th {
      background: rgba(11, 19, 36, 0.95);
      color: var(--text-main);
      font-weight: 700;
      font-size: 1rem;
    }
    .custom-table tr:last-child td {
      border-bottom: none;
    }
    .highlight-col {
      background: rgba(56, 189, 248, 0.05);
      border-left: 1px solid rgba(56, 189, 248, 0.2);
      border-right: 1px solid rgba(56, 189, 248, 0.2);
      color: #ffffff;
      font-weight: 600;
    }

    /* 板块六：时间轴节点流 */
    .timeline-wrapper {
      position: relative;
      padding: 20px 0;
    }
    .timeline-node {
      position: relative;
      padding-left: 32px;
      border-left: 2px solid rgba(56, 189, 248, 0.3);
      padding-bottom: 36px;
    }
    .timeline-node:last-child {
      border-left: 2px solid transparent;
      padding-bottom: 0;
    }
    .timeline-dot {
      position: absolute;
      left: -9px;
      top: 0;
      width: 16px;
      height: 16px;
      border-radius: 50%;
      background: var(--primary-cyan);
      box-shadow: 0 0 12px var(--primary-cyan);
    }

    /* 板块七：资讯卡片流 */
    .news-card {
      padding: 24px;
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .news-date {
      font-size: 0.8rem;
      color: var(--text-dim);
      margin-bottom: 8px;
    }
    .news-card-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: #fff;
    }
    .news-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      flex-grow: 1;
      margin-bottom: 16px;
    }

    /* 板块八：控制台终端 */
    .terminal-body {
      background: #04070e;
      border-radius: var(--radius-sm);
      padding: 16px;
      font-family: "Courier New", Courier, monospace;
      font-size: 0.88rem;
      color: #38bdf8;
      max-height: 280px;
      overflow-y: auto;
      line-height: 1.7;
    }
    .terminal-body .log-time { color: #64748b; }
    .terminal-body .log-ok { color: #10b981; }
    .terminal-body .log-warn { color: #f59e0b; }

    /* 板块九：安全防护 */
    .security-badge-icon {
      font-size: 2rem;
      color: var(--accent-purple);
      margin-bottom: 14px;
    }

    /* 板块十二：FAQ 手风琴定制 */
    .accordion-item {
      background: var(--bg-card);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-md) !important;
      margin-bottom: 14px;
      overflow: hidden;
    }
    .accordion-button {
      background: transparent;
      color: #ffffff;
      font-size: 1.05rem;
      font-weight: 600;
      box-shadow: none !important;
      padding: 20px 24px;
    }
    .accordion-button:not(.collapsed) {
      background: rgba(56, 189, 248, 0.08);
      color: var(--primary-cyan);
      border-left: 4px solid var(--primary-cyan);
    }
    .accordion-button::after {
      filter: invert(1);
    }
    .accordion-body {
      color: var(--text-muted);
      font-size: 0.96rem;
      padding: 16px 24px 24px 24px;
      line-height: 1.7;
    }

    /* 板块十三：合规伙伴墙 */
    .partner-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
      gap: 16px;
    }
    .partner-pill {
      background: rgba(15, 23, 42, 0.6);
      border: 1px solid var(--border-card);
      border-radius: 40px;
      padding: 12px 18px;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      color: var(--text-muted);
      font-weight: 600;
      font-size: 0.9rem;
    }

    /* 板块十四：转化接入 */
    .cta-box {
      background: linear-gradient(135deg, rgba(30, 41, 59, 0.8) 0%, rgba(11, 19, 36, 0.95) 100%);
      border: 1px solid rgba(56, 189, 248, 0.35);
      border-radius: var(--radius-lg);
      padding: 50px 30px;
      box-shadow: var(--glow-cyan);
    }
    .form-control-custom {
      background: rgba(15, 23, 42, 0.85);
      border: 1px solid rgba(148, 163, 184, 0.25);
      color: #ffffff;
      padding: 14px 20px;
      border-radius: 30px;
    }
    .form-control-custom:focus {
      background: rgba(15, 23, 42, 0.95);
      border-color: var(--primary-blue);
      color: #fff;
      box-shadow: 0 0 12px rgba(56, 189, 248, 0.3);
    }

    /* 页脚 */
    footer {
      background-color: #04070e;
      border-top: 1px solid var(--border-card);
      padding: 60px 0 35px 0;
    }
    .footer-title {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 20px;
      color: #ffffff;
    }
    .footer-links {
      list-style: none;
      padding-left: 0;
    }
    .footer-links li {
      margin-bottom: 12px;
    }
    .footer-links a {
      color: var(--text-muted);
      font-size: 0.92rem;
    }
    .footer-links a:hover {
      color: var(--primary-cyan);
    }
    .copyright-bar {
      margin-top: 45px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      font-size: 0.86rem;
      color: var(--text-dim);
    }

    /* 响应式调整 */
    @media (max-width: 991px) {
      .hero-title {
        font-size: 2.3rem;
      }
      .command-search {
        display: none;
      }
      .section-title {
        font-size: 1.8rem;
      }
    }
    @media (max-width: 767px) {
      .hero-title {
        font-size: 1.95rem;
      }
      .saas-nav {
        padding: 10px 16px;
      }
      .metric-val {
        font-size: 1.8rem;
      }
    }

/* roulang page: category1 */
:root {
        --bg-deep: #070b14;
        --bg-subtle: #0b1324;
        --bg-card: rgba(15, 23, 42, 0.75);
        --border-card: rgba(148, 163, 184, 0.12);
        --primary-cyan: #06b6d4;
        --primary-blue: #38bdf8;
        --accent-purple: #818cf8;
        --accent-pink: #f43f5e;
        --text-main: #f8fafc;
        --text-muted: #94a3b8;
        --text-dim: #64748b;
        --radius-sm: 8px;
        --radius-md: 16px;
        --radius-lg: 24px;
        --glow-cyan: 0 0 25px -5px rgba(56, 189, 248, 0.4), 0 8px 20px -6px rgba(6, 182, 212, 0.3);
        --glow-pink: 0 0 20px -4px rgba(244, 63, 94, 0.4);
    }
    
    body {
        background-color: var(--bg-deep);
        color: var(--text-main);
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        line-height: 1.65;
        overflow-x: hidden;
    }
    
    a {
        text-decoration: none;
        color: inherit;
        transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }

    /* 浮动命令栏导航 */
    .saas-nav-container {
        position: sticky;
        top: 16px;
        z-index: 1030;
        padding: 0 20px;
    }
    .saas-nav {
        background: rgba(11, 19, 36, 0.82);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
        border: 1px solid rgba(56, 189, 248, 0.22);
        border-radius: var(--radius-lg);
        padding: 12px 28px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    }
    .nav-brand-text {
        font-size: 1.25rem;
        font-weight: 800;
        letter-spacing: -0.5px;
        background: linear-gradient(135deg, #ffffff 30%, var(--primary-blue) 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .brand-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 34px;
        height: 34px;
        background: linear-gradient(135deg, var(--primary-cyan), var(--primary-blue));
        border-radius: var(--radius-sm);
        color: #070b14;
        font-size: 1rem;
    }
    .nav-menu-links .nav-link {
        color: var(--text-muted);
        font-size: 0.95rem;
        font-weight: 500;
        padding: 8px 16px;
        border-radius: 30px;
        transition: all 0.2s ease;
    }
    .nav-menu-links .nav-link:hover, .nav-menu-links .nav-link.active {
        color: #ffffff;
        background: rgba(255, 255, 255, 0.06);
    }
    .command-search {
        background: rgba(15, 23, 42, 0.9);
        border: 1px solid rgba(148, 163, 184, 0.2);
        border-radius: 30px;
        padding: 6px 14px;
        display: flex;
        align-items: center;
        gap: 10px;
        color: var(--text-muted);
        font-size: 0.85rem;
        min-width: 170px;
    }
    .kbd-shortcut {
        background: rgba(255, 255, 255, 0.1);
        border: 1px solid rgba(255, 255, 255, 0.15);
        border-radius: 4px;
        padding: 2px 6px;
        font-size: 0.7rem;
        color: var(--text-dim);
    }
    .btn-glow-cyan {
        background: linear-gradient(135deg, var(--primary-cyan) 0%, var(--primary-blue) 100%);
        color: #070b14;
        font-weight: 700;
        border: none;
        border-radius: 30px;
        padding: 9px 22px;
        box-shadow: var(--glow-cyan);
        transition: all 0.25s ease;
        white-space: nowrap;
    }
    .btn-glow-cyan:hover {
        transform: translateY(-2px);
        box-shadow: 0 0 30px rgba(56, 189, 248, 0.6);
        color: #000;
    }
    .btn-glow-secondary {
        background: rgba(255, 255, 255, 0.05);
        color: var(--text-main);
        border: 1px solid rgba(255, 255, 255, 0.15);
        border-radius: 30px;
        padding: 9px 22px;
        font-weight: 600;
        transition: all 0.2s ease;
    }
    .btn-glow-secondary:hover {
        background: rgba(255, 255, 255, 0.12);
        color: #fff;
        border-color: var(--primary-blue);
    }

    /* 基础布局 */
    section {
        padding: 60px 0;
        position: relative;
    }
    .section-header {
        margin-bottom: 35px;
    }
    .section-title {
        font-size: 1.85rem;
        font-weight: 800;
        letter-spacing: -0.5px;
        margin-bottom: 10px;
        color: #ffffff;
    }
    .section-desc {
        color: var(--text-muted);
        font-size: 0.98rem;
        max-width: 800px;
    }
    .glass-card {
        background: linear-gradient(135deg, rgba(30, 41, 59, 0.65) 0%, rgba(15, 23, 42, 0.5) 100%);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border: 1px solid var(--border-card);
        border-radius: var(--radius-md);
        transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .glass-card:hover {
        border-color: rgba(56, 189, 248, 0.35);
        transform: translateY(-3px);
        box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
    }
    .pill-badge {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: rgba(6, 182, 212, 0.12);
        color: var(--primary-cyan);
        border: 1px solid rgba(6, 182, 212, 0.28);
        padding: 4px 12px;
        border-radius: 30px;
        font-size: 0.8rem;
        font-weight: 600;
        margin-bottom: 12px;
    }
    .badge-pink {
        background: rgba(244, 63, 94, 0.12);
        color: var(--accent-pink);
        border-color: rgba(244, 63, 94, 0.3);
    }
    .badge-purple {
        background: rgba(129, 140, 248, 0.12);
        color: var(--accent-purple);
        border-color: rgba(129, 140, 248, 0.3);
    }

    /* 板块1：分类专属导引头 */
    .cat-head-panel {
        background: linear-gradient(180deg, rgba(15, 23, 42, 0.8) 0%, rgba(7, 11, 20, 0.4) 100%);
        border-bottom: 1px solid var(--border-card);
        padding: 45px 0 35px;
    }
    .cat-breadcrumb {
        font-size: 0.85rem;
        color: var(--text-dim);
        display: flex;
        align-items: center;
        gap: 8px;
        margin-bottom: 16px;
    }
    .cat-breadcrumb a:hover {
        color: var(--primary-blue);
    }
    .cat-h1 {
        font-size: 2.3rem;
        font-weight: 800;
        letter-spacing: -0.5px;
        color: #ffffff;
        margin-bottom: 12px;
    }

    /* 板块2：多维属性筛选器 */
    .filter-shelf-box {
        background: rgba(15, 23, 42, 0.7);
        border: 1px solid var(--border-card);
        border-radius: var(--radius-md);
        padding: 20px 24px;
    }
    .filter-group-row {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 10px 0;
        border-bottom: 1px dashed rgba(148, 163, 184, 0.12);
    }
    .filter-group-row:last-child {
        border-bottom: none;
        padding-bottom: 0;
    }
    .filter-group-row:first-child {
        padding-top: 0;
    }
    .filter-label {
        font-size: 0.85rem;
        font-weight: 600;
        color: var(--text-dim);
        min-width: 80px;
    }
    .filter-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }
    .filter-tag {
        font-size: 0.82rem;
        padding: 4px 12px;
        border-radius: 20px;
        background: rgba(255, 255, 255, 0.04);
        border: 1px solid rgba(255, 255, 255, 0.08);
        color: var(--text-muted);
        cursor: pointer;
        transition: all 0.2s;
    }
    .filter-tag:hover, .filter-tag.active {
        background: rgba(6, 182, 212, 0.15);
        color: var(--primary-cyan);
        border-color: rgba(6, 182, 212, 0.4);
    }

    /* 板块3：主分类卡片网格 */
    .cat-shelf-card {
        padding: 24px;
        height: 100%;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
    }
    .shelf-card-head {
        margin-bottom: 16px;
    }
    .shelf-card-title {
        font-size: 1.25rem;
        font-weight: 700;
        color: #fff;
        margin-bottom: 8px;
    }
    .shelf-params {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 10px;
        background: rgba(0, 0, 0, 0.25);
        padding: 12px;
        border-radius: var(--radius-sm);
        margin: 16px 0;
    }
    .param-item .param-title {
        font-size: 0.75rem;
        color: var(--text-dim);
    }
    .param-item .param-val {
        font-size: 0.92rem;
        font-weight: 600;
        color: var(--text-main);
    }
    .cat-card-action {
        border-top: 1px solid rgba(255, 255, 255, 0.06);
        padding-top: 14px;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
    .card-detail-link {
        font-size: 0.88rem;
        font-weight: 600;
        color: var(--primary-cyan);
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }
    .card-detail-link:hover {
        color: #fff;
        transform: translateX(3px);
    }

    /* 板块4：指标对比看板 */
    .benchmark-strip {
        padding: 18px 24px;
        margin-bottom: 14px;
    }
    .progress-track {
        height: 8px;
        background: rgba(255, 255, 255, 0.08);
        border-radius: 10px;
        overflow: hidden;
        margin: 8px 0;
    }
    .progress-fill {
        height: 100%;
        border-radius: 10px;
    }

    /* 板块5：应用场景链路图 */
    .arch-step-box {
        padding: 24px;
        border-left: 3px solid var(--primary-cyan);
        background: rgba(15, 23, 42, 0.5);
        border-radius: 0 var(--radius-md) var(--radius-md) 0;
        margin-bottom: 20px;
    }

    /* 板块6：问答速查 */
    .qa-card {
        padding: 20px;
        height: 100%;
    }
    .qa-q {
        font-size: 1.05rem;
        font-weight: 700;
        color: #ffffff;
        margin-bottom: 8px;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .qa-q i {
        color: var(--primary-cyan);
    }

    /* 板块7：资源直达底栏 */
    .cat-guide-bar {
        background: linear-gradient(135deg, rgba(30, 41, 59, 0.9) 0%, rgba(11, 19, 36, 0.95) 100%);
        border: 1px solid rgba(56, 189, 248, 0.3);
        border-radius: var(--radius-lg);
        padding: 36px 40px;
    }

    /* Footer 全站通用 */
    .site-footer {
        background: #04070d;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        padding: 60px 0 30px;
        color: var(--text-muted);
    }
    .footer-brand {
        font-size: 1.25rem;
        font-weight: 800;
        color: #ffffff;
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .footer-col-title {
        color: #ffffff;
        font-size: 0.95rem;
        font-weight: 700;
        margin-bottom: 18px;
    }
    .footer-links {
        list-style: none;
        padding: 0;
        margin: 0;
    }
    .footer-links li {
        margin-bottom: 10px;
    }
    .footer-links a {
        color: var(--text-muted);
        font-size: 0.88rem;
    }
    .footer-links a:hover {
        color: var(--primary-blue);
    }
    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, 0.05);
        padding-top: 24px;
        font-size: 0.82rem;
    }
    
    @media (max-width: 991px) {
        .cat-h1 { font-size: 1.85rem; }
        .command-search { display: none; }
        .cat-guide-bar { padding: 24px; text-align: center; }
        .cat-guide-bar .d-flex { justify-content: center !important; }
    }

/* roulang page: category2 */
:root {
      --bg-deep: #070b14;
      --bg-subtle: #0b1324;
      --bg-card: rgba(15, 23, 42, 0.75);
      --border-card: rgba(148, 163, 184, 0.12);
      --primary-cyan: #06b6d4;
      --primary-blue: #38bdf8;
      --accent-purple: #818cf8;
      --accent-pink: #f43f5e;
      --text-main: #f8fafc;
      --text-muted: #94a3b8;
      --text-dim: #64748b;
      --radius-sm: 8px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --glow-cyan: 0 0 25px -5px rgba(56, 189, 248, 0.4), 0 8px 20px -6px rgba(6, 182, 212, 0.3);
      --glow-pink: 0 0 20px -4px rgba(244, 63, 94, 0.4);
    }
    body {
      background-color: var(--bg-deep);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      line-height: 1.65;
      overflow-x: hidden;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    /* SaaS 浮动命令栏导航 */
    .saas-nav-container {
      position: sticky;
      top: 16px;
      z-index: 1030;
      padding: 0 20px;
    }
    .saas-nav {
      background: rgba(11, 19, 36, 0.82);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
      border: 1px solid rgba(56, 189, 248, 0.22);
      border-radius: var(--radius-lg);
      padding: 12px 28px;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    }
    .nav-brand-text {
      font-size: 1.25rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      background: linear-gradient(135deg, #ffffff 30%, var(--primary-blue) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .brand-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 34px;
      height: 34px;
      background: linear-gradient(135deg, var(--primary-cyan), var(--primary-blue));
      border-radius: var(--radius-sm);
      color: #070b14;
      font-size: 1rem;
    }
    .nav-menu-links .nav-link {
      color: var(--text-muted);
      font-size: 0.95rem;
      font-weight: 500;
      padding: 8px 16px;
      border-radius: 30px;
      transition: all 0.2s ease;
    }
    .nav-menu-links .nav-link:hover, .nav-menu-links .nav-link.active {
      color: #ffffff;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(56, 189, 248, 0.25);
    }
    .command-search {
      background: rgba(15, 23, 42, 0.9);
      border: 1px solid rgba(148, 163, 184, 0.2);
      border-radius: 30px;
      padding: 6px 14px;
      display: flex;
      align-items: center;
      gap: 10px;
      color: var(--text-muted);
      font-size: 0.85rem;
      min-width: 170px;
    }
    .kbd-shortcut {
      background: rgba(255, 255, 255, 0.1);
      border-radius: 4px;
      padding: 1px 6px;
      font-size: 0.75rem;
      color: var(--primary-blue);
    }
    .btn-glow-cyan {
      background: linear-gradient(135deg, var(--primary-cyan) 0%, var(--primary-blue) 100%);
      color: #070b14;
      font-weight: 700;
      border: none;
      border-radius: 30px;
      padding: 9px 22px;
      box-shadow: var(--glow-cyan);
      transition: all 0.25s ease;
      white-space: nowrap;
    }
    .btn-glow-cyan:hover {
      transform: translateY(-2px);
      box-shadow: 0 0 30px rgba(56, 189, 248, 0.6);
      color: #000;
    }
    
    /* 通用组件 */
    section {
      padding: 70px 0;
      position: relative;
    }
    .glass-card {
      background: linear-gradient(135deg, rgba(30, 41, 59, 0.65) 0%, rgba(15, 23, 42, 0.5) 100%);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid var(--border-card);
      border-radius: var(--radius-md);
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .glass-card:hover {
      border-color: rgba(56, 189, 248, 0.35);
      transform: translateY(-3px);
      box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
    }
    .pill-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(6, 182, 212, 0.12);
      color: var(--primary-cyan);
      border: 1px solid rgba(6, 182, 212, 0.28);
      padding: 5px 14px;
      border-radius: 30px;
      font-size: 0.85rem;
      font-weight: 600;
    }
    .badge-pink {
      background: rgba(244, 63, 94, 0.12);
      color: var(--accent-pink);
      border-color: rgba(244, 63, 94, 0.3);
    }
    .badge-purple {
      background: rgba(129, 140, 248, 0.12);
      color: var(--accent-purple);
      border-color: rgba(129, 140, 248, 0.3);
    }
    .section-headline {
      font-size: 1.85rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      color: #ffffff;
      margin-bottom: 12px;
    }
    .section-subtext {
      color: var(--text-muted);
      font-size: 1rem;
      max-width: 750px;
      margin-bottom: 35px;
    }

    /* 板块一：专属导引头 */
    .topic-header-section {
      padding-top: 45px;
      padding-bottom: 50px;
      border-bottom: 1px solid rgba(148, 163, 184, 0.08);
      background: radial-gradient(circle at 50% 0%, rgba(6, 182, 212, 0.15), transparent 70%);
    }
    .custom-breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.85rem;
      color: var(--text-dim);
      margin-bottom: 16px;
    }
    .custom-breadcrumb a:hover {
      color: var(--primary-blue);
    }
    .topic-h1 {
      font-size: 2.35rem;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 16px;
      background: linear-gradient(135deg, #ffffff 40%, var(--primary-blue) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    /* 板块二：知识货架主体 */
    .spec-card {
      padding: 22px;
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .spec-card-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 14px;
    }
    .spec-card-title {
      font-size: 1.08rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 8px;
    }
    .spec-grid-param {
      background: rgba(11, 19, 36, 0.6);
      border-radius: var(--radius-sm);
      padding: 10px;
      margin-top: 14px;
      font-size: 0.8rem;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 8px;
    }
    .param-item span {
      color: var(--text-dim);
      display: block;
      font-size: 0.72rem;
    }
    .param-item strong {
      color: var(--primary-blue);
      font-family: monospace;
    }

    /* 板块三：深度技术链路分解 */
    .step-pipeline {
      position: relative;
    }
    .step-pipeline::before {
      content: "";
      position: absolute;
      top: 36px;
      left: 5%;
      right: 5%;
      height: 2px;
      background: linear-gradient(90deg, var(--primary-cyan) 0%, var(--accent-purple) 100%);
      z-index: 1;
      opacity: 0.35;
    }
    @media (max-width: 991px) {
      .step-pipeline::before {
        display: none;
      }
    }
    .step-node {
      position: relative;
      z-index: 2;
      text-align: center;
      padding: 0 15px;
    }
    .step-icon-circle {
      width: 72px;
      height: 72px;
      border-radius: 50%;
      background: #0f172a;
      border: 2px solid var(--primary-cyan);
      box-shadow: 0 0 18px rgba(6, 182, 212, 0.35);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      color: #ffffff;
      margin-bottom: 18px;
    }
    .step-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 8px;
    }
    .step-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块四：热度与访问分布趋势板 */
    .trend-board-box {
      padding: 30px;
    }
    .chart-bar-group {
      display: flex;
      align-items: flex-end;
      height: 180px;
      gap: 16px;
      padding-top: 20px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    .chart-col {
      flex: 1;
      display: flex;
      flex-direction: column;
      align-items: center;
      height: 100%;
      justify-content: flex-end;
    }
    .chart-col .bar {
      width: 100%;
      max-width: 38px;
      border-radius: 6px 6px 0 0;
      background: linear-gradient(180deg, var(--primary-cyan) 0%, rgba(6, 182, 212, 0.2) 100%);
      transition: height 0.6s ease;
      position: relative;
    }
    .chart-col .bar.peak {
      background: linear-gradient(180deg, var(--accent-pink) 0%, rgba(244, 63, 94, 0.2) 100%);
      box-shadow: 0 0 15px rgba(244, 63, 94, 0.5);
    }
    .chart-col .bar-label {
      margin-top: 8px;
      font-size: 0.75rem;
      color: var(--text-dim);
    }

    /* 板块五：核心资源双列列表 */
    .resource-dual-card {
      padding: 24px;
      display: flex;
      gap: 20px;
      align-items: flex-start;
      height: 100%;
    }
    .resource-icon-wrap {
      width: 54px;
      height: 54px;
      flex-shrink: 0;
      border-radius: var(--radius-sm);
      background: rgba(56, 189, 248, 0.1);
      border: 1px solid rgba(56, 189, 248, 0.25);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary-blue);
      font-size: 1.4rem;
    }
    .resource-content h3 {
      font-size: 1.15rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 8px;
    }
    .resource-content p {
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-bottom: 12px;
      line-height: 1.6;
    }
    .resource-meta {
      font-size: 0.78rem;
      color: var(--text-dim);
      display: flex;
      gap: 16px;
      align-items: center;
    }

    /* 板块六：技术参数规范表 */
    .table-container-box {
      padding: 24px;
      overflow-x: auto;
    }
    .custom-dark-table {
      width: 100%;
      border-collapse: separate;
      border-spacing: 0;
      color: var(--text-main);
      font-size: 0.88rem;
    }
    .custom-dark-table th {
      background: rgba(11, 19, 36, 0.95);
      color: var(--primary-cyan);
      font-weight: 700;
      padding: 14px 18px;
      border-bottom: 2px solid rgba(56, 189, 248, 0.3);
      white-space: nowrap;
    }
    .custom-dark-table td {
      padding: 14px 18px;
      border-bottom: 1px solid rgba(148, 163, 184, 0.1);
      background: rgba(15, 23, 42, 0.4);
    }
    .custom-dark-table tr:hover td {
      background: rgba(30, 41, 59, 0.6);
    }

    /* 板块七：订阅与提醒表单 */
    .sub-section-card {
      padding: 40px;
      background: radial-gradient(circle at 10% 20%, rgba(6, 182, 212, 0.12), transparent 50%),
                  linear-gradient(135deg, rgba(30, 41, 59, 0.8) 0%, rgba(15, 23, 42, 0.9) 100%);
      border: 1px solid rgba(56, 189, 248, 0.35);
      border-radius: var(--radius-lg);
      box-shadow: var(--glow-cyan);
    }
    .sub-input {
      background: rgba(7, 11, 20, 0.85) !important;
      border: 1px solid rgba(56, 189, 248, 0.3) !important;
      color: #ffffff !important;
      border-radius: 30px 0 0 30px !important;
      padding: 12px 24px !important;
      font-size: 0.95rem;
    }
    .sub-input:focus {
      border-color: var(--primary-blue) !important;
      box-shadow: 0 0 12px rgba(56, 189, 248, 0.4) !important;
    }
    .sub-btn {
      border-radius: 0 30px 30px 0 !important;
      padding: 12px 30px !important;
    }

    /* 统一页脚 */
    .site-footer {
      background: #05080f;
      border-top: 1px solid rgba(148, 163, 184, 0.12);
      padding: 65px 0 30px;
      margin-top: 40px;
    }
    .footer-brand {
      font-size: 1.2rem;
      font-weight: 800;
      color: #ffffff;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .footer-col-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 20px;
      letter-spacing: 0.5px;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: var(--text-muted);
      font-size: 0.88rem;
    }
    .footer-links a:hover {
      color: var(--primary-blue);
      padding-left: 4px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 25px;
      color: var(--text-dim);
      font-size: 0.82rem;
    }

    /* 移动端断点适配 */
    @media (max-width: 991px) {
      .saas-nav {
        padding: 10px 16px;
      }
      .command-search {
        display: none;
      }
      .topic-h1 {
        font-size: 1.85rem;
      }
      .sub-input {
        border-radius: 30px !important;
        margin-bottom: 12px;
      }
      .sub-btn {
        border-radius: 30px !important;
        width: 100%;
      }
    }

/* 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}