/* roulang page: index */
:root {
      --primary: #1e40af;
      --primary-hover: #1d4ed8;
      --accent: #0284c7;
      --accent-light: #e0f2fe;
      --success: #059669;
      --dark-slate: #0f172a;
      --dark-card: #1e293b;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #94a3b8;
      --bg-white: #ffffff;
      --bg-soft: #f8fafc;
      --bg-gray: #f1f5f9;
      --border-color: #e2e8f0;
      --radius-sm: 6px;
      --radius-md: 8px;
      --radius-lg: 12px;
      --radius-xl: 16px;
      --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
      --shadow-card: 0 4px 20px -2px rgba(15, 23, 42, 0.05), 0 2px 6px -1px rgba(15, 23, 42, 0.03);
      --shadow-hover: 0 12px 30px -4px rgba(15, 23, 42, 0.1);
      --transition: all 0.28s ease;
      --container-max: 1240px;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    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-white);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
    }

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

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

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

    .container {
      width: 100%;
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* 顶部双行导航 */
    .top-bar {
      background-color: #f8fafc;
      border-bottom: 1px solid var(--border-color);
      font-size: 13px;
      color: var(--text-muted);
      padding: 8px 0;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .top-bar-info {
      display: flex;
      gap: 20px;
    }
    .top-bar-info span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .top-bar-info i {
      color: var(--accent);
    }
    .top-bar-actions a {
      color: var(--text-muted);
      margin-left: 16px;
    }
    .top-bar-actions a:hover {
      color: var(--primary);
    }

    .main-nav {
      position: sticky;
      top: 0;
      z-index: 999;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      box-shadow: var(--shadow-sm);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .nav-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 22px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.5px;
    }
    .nav-logo-icon {
      width: 40px;
      height: 40px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 18px;
    }
    .nav-menu {
      display: flex;
      gap: 32px;
      list-style: none;
    }
    .nav-menu a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-muted);
      padding: 6px 0;
      position: relative;
    }
    .nav-menu a:hover, .nav-menu a.active {
      color: var(--primary);
    }
    .nav-menu a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--primary);
      transition: var(--transition);
    }
    .nav-menu a:hover::after, .nav-menu a.active::after {
      width: 100%;
    }
    .nav-cta-btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background-color: var(--primary);
      color: #fff !important;
      padding: 10px 22px;
      border-radius: var(--radius-md);
      font-weight: 600;
      font-size: 14px;
      box-shadow: 0 4px 12px rgba(30, 64, 175, 0.2);
    }
    .nav-cta-btn:hover {
      background-color: var(--primary-hover);
      transform: translateY(-1px);
    }
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 22px;
      color: var(--text-main);
      cursor: pointer;
      padding: 8px;
    }

    /* 通用板块排版规范 */
    .section-spacing {
      padding: 90px 0;
    }
    .section-spacing-alt {
      background-color: var(--bg-soft);
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 56px auto;
    }
    .badge-tag {
      display: inline-block;
      padding: 5px 14px;
      background-color: var(--accent-light);
      color: var(--accent);
      font-size: 13px;
      font-weight: 600;
      border-radius: 999px;
      margin-bottom: 14px;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 32px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 16px;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 1. 工业参数首屏（Hero Banner） */
    .hero-banner {
      position: relative;
      background: linear-gradient(rgba(15, 23, 42, 0.78), rgba(15, 23, 42, 0.88)), url('/assets/images/86292b1be2827eb8.webp') center/cover no-repeat;
      color: #fff;
      padding: 110px 0 100px 0;
      overflow: hidden;
    }
    .hero-content {
      max-width: 920px;
      margin: 0 auto;
      text-align: center;
    }
    .hero-pre-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(2, 132, 199, 0.25);
      border: 1px solid rgba(56, 189, 248, 0.4);
      padding: 6px 18px;
      border-radius: 999px;
      font-size: 13px;
      color: #7dd3fc;
      margin-bottom: 24px;
      backdrop-filter: blur(4px);
    }
    .hero-title {
      font-size: 44px;
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -0.5px;
      margin-bottom: 22px;
      color: #ffffff;
    }
    .hero-title span {
      background: linear-gradient(135deg, #38bdf8, #818cf8);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-intro {
      font-size: 17px;
      line-height: 1.8;
      color: #cbd5e1;
      margin-bottom: 38px;
      max-width: 820px;
      margin-left: auto;
      margin-right: auto;
    }
    .hero-cta-group {
      display: flex;
      justify-content: center;
      gap: 16px;
      margin-bottom: 50px;
      flex-wrap: wrap;
    }
    .btn-hero-primary {
      background: #0284c7;
      color: #ffffff;
      padding: 14px 34px;
      border-radius: var(--radius-md);
      font-weight: 600;
      font-size: 16px;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      box-shadow: 0 8px 24px rgba(2, 132, 199, 0.4);
    }
    .btn-hero-primary:hover {
      background: #0369a1;
      transform: translateY(-2px);
    }
    .btn-hero-secondary {
      background: rgba(255, 255, 255, 0.12);
      border: 1px solid rgba(255, 255, 255, 0.28);
      color: #ffffff;
      padding: 14px 30px;
      border-radius: var(--radius-md);
      font-weight: 600;
      font-size: 16px;
      backdrop-filter: blur(6px);
    }
    .btn-hero-secondary:hover {
      background: rgba(255, 255, 255, 0.2);
    }

    /* 工业参数首屏：关键指标条 */
    .hero-spec-strip {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      background: rgba(15, 23, 42, 0.65);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-xl);
      padding: 24px;
      backdrop-filter: blur(12px);
    }
    .spec-item {
      text-align: left;
      border-left: 2px solid #0284c7;
      padding-left: 16px;
    }
    .spec-item:first-child {
      border-left-color: #38bdf8;
    }
    .spec-val {
      font-size: 26px;
      font-weight: 800;
      color: #ffffff;
      line-height: 1.2;
    }
    .spec-val small {
      font-size: 13px;
      font-weight: 500;
      color: #94a3b8;
      margin-left: 4px;
    }
    .spec-lbl {
      font-size: 13px;
      color: #94a3b8;
      margin-top: 4px;
    }

    /* 2. KPI看板（Metrics & Operations Bar） */
    .kpi-section {
      background: #ffffff;
      padding: 45px 0;
      box-shadow: 0 10px 30px -10px rgba(15, 23, 42, 0.05);
      border-bottom: 1px solid var(--border-color);
    }
    .kpi-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .kpi-card {
      padding: 20px;
      background: var(--bg-soft);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      gap: 18px;
    }
    .kpi-icon-wrap {
      width: 52px;
      height: 52px;
      border-radius: var(--radius-md);
      background: #eff6ff;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      flex-shrink: 0;
    }
    .kpi-num {
      font-size: 28px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.1;
    }
    .kpi-label {
      font-size: 13px;
      color: var(--text-muted);
      margin-top: 4px;
    }

    /* 3. 智慧校园整体架构与产品体系（Product Architecture） */
    .arch-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .arch-text-block h3 {
      font-size: 26px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 18px;
    }
    .arch-lead {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 24px;
    }
    .compliance-box {
      background: #eff6ff;
      border: 1px solid #bfdbfe;
      border-radius: var(--radius-lg);
      padding: 20px;
      margin-bottom: 28px;
    }
    .compliance-box-title {
      font-size: 15px;
      font-weight: 700;
      color: var(--primary);
      display: flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 8px;
    }
    .compliance-box p {
      font-size: 13px;
      color: #1e3a8a;
      line-height: 1.6;
    }
    .param-list {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
    }
    .param-list li {
      font-size: 14px;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .param-list li i {
      color: var(--success);
      font-size: 14px;
    }
    .arch-media-wrap {
      position: relative;
      border-radius: var(--radius-xl);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      border: 1px solid var(--border-color);
    }
    .arch-media-wrap img {
      width: 100%;
      height: 420px;
      object-fit: cover;
    }
    .arch-floating-tag {
      position: absolute;
      bottom: 20px;
      right: 20px;
      background: rgba(15, 23, 42, 0.85);
      color: #fff;
      padding: 10px 18px;
      border-radius: var(--radius-md);
      font-size: 13px;
      backdrop-filter: blur(8px);
    }

    /* 4. 六维核心支撑优势区（Key Advantages） */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .matrix-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-card);
      transition: var(--transition);
      position: relative;
    }
    .matrix-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: #cbd5e1;
    }
    .matrix-icon {
      width: 50px;
      height: 50px;
      border-radius: var(--radius-md);
      background: #eff6ff;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin-bottom: 20px;
    }
    .matrix-card h4 {
      font-size: 19px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .matrix-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 5. 服务矩阵：热门核心场景模块区（Popular Solutions） */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .scenario-card {
      background: var(--bg-white);
      border-radius: var(--radius-xl);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-card);
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .scenario-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .scenario-thumb {
      height: 220px;
      width: 100%;
      overflow: hidden;
      position: relative;
    }
    .scenario-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .scenario-card:hover .scenario-thumb img {
      transform: scale(1.05);
    }
    .scenario-tag {
      position: absolute;
      top: 14px;
      left: 14px;
      background: var(--primary);
      color: #fff;
      font-size: 12px;
      font-weight: 600;
      padding: 4px 12px;
      border-radius: 999px;
    }
    .scenario-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .scenario-body h4 {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .scenario-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
      flex: 1;
    }
    .scenario-specs {
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
      display: flex;
      justify-content: space-between;
      font-size: 13px;
      color: var(--text-light);
    }
    .scenario-specs span strong {
      color: var(--text-main);
    }

    /* 6. 深色理念与数据底座对比区（Dark Tech Showcase） */
    .dark-showcase {
      background: var(--dark-slate);
      color: #ffffff;
      padding: 95px 0;
      position: relative;
    }
    .dark-showcase .badge-tag {
      background: rgba(56, 189, 248, 0.2);
      color: #38bdf8;
    }
    .dark-showcase .section-title {
      color: #ffffff;
    }
    .dark-showcase .section-desc {
      color: #94a3b8;
    }
    .dark-split {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
      margin-top: 50px;
    }
    .engine-layers {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .layer-item {
      background: var(--dark-card);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-lg);
      padding: 20px 24px;
      display: flex;
      gap: 18px;
      align-items: flex-start;
      transition: var(--transition);
    }
    .layer-item:hover {
      border-color: #0284c7;
      background: rgba(30, 41, 59, 0.9);
    }
    .layer-index {
      width: 32px;
      height: 32px;
      background: #0284c7;
      color: #fff;
      font-weight: 700;
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      flex-shrink: 0;
    }
    .layer-content h5 {
      font-size: 17px;
      font-weight: 600;
      color: #ffffff;
      margin-bottom: 6px;
    }
    .layer-content p {
      font-size: 13px;
      color: #94a3b8;
      line-height: 1.6;
    }
    .engine-preview {
      background: var(--dark-card);
      border-radius: var(--radius-xl);
      border: 1px solid rgba(255, 255, 255, 0.1);
      padding: 28px;
    }
    .engine-code-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      padding-bottom: 14px;
      margin-bottom: 20px;
    }
    .dots {
      display: flex;
      gap: 6px;
    }
    .dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: #475569;
    }
    .dot.red { background: #ef4444; }
    .dot.yellow { background: #eab308; }
    .dot.green { background: #22c55e; }
    .code-title {
      font-size: 13px;
      color: #94a3b8;
      font-family: monospace;
    }
    .engine-metric-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .metric-box {
      background: rgba(15, 23, 42, 0.6);
      border-radius: var(--radius-md);
      padding: 16px;
      border: 1px solid rgba(255, 255, 255, 0.05);
    }
    .metric-val {
      font-size: 22px;
      font-weight: 700;
      color: #38bdf8;
    }
    .metric-name {
      font-size: 12px;
      color: #94a3b8;
      margin-top: 4px;
    }

    /* 7. 结果对比：新一代数字化架构 vs 传统校园IT堆叠 */
    .compare-table-wrap {
      overflow-x: auto;
      background: #ffffff;
      border-radius: var(--radius-xl);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-card);
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .compare-table th, .compare-table td {
      padding: 20px 24px;
      border-bottom: 1px solid var(--border-color);
      font-size: 14px;
    }
    .compare-table th {
      background: var(--bg-soft);
      font-weight: 700;
      color: var(--text-main);
    }
    .col-feature { width: 25%; font-weight: 600; color: var(--text-main); }
    .col-legacy { width: 37.5%; color: var(--text-muted); background: #fdfdfd; }
    .col-smart { width: 37.5%; color: var(--primary); background: #eff6ff; font-weight: 600; }
    .table-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 8. 标杆示范校落地故事区（Case Studies） */
    .case-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
    .case-card {
      background: var(--bg-white);
      border-radius: var(--radius-xl);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .case-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-3px);
    }
    .case-img-box {
      height: 220px;
      overflow: hidden;
      position: relative;
    }
    .case-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .case-tag-pos {
      position: absolute;
      top: 14px;
      right: 14px;
      background: rgba(15, 23, 42, 0.75);
      backdrop-filter: blur(4px);
      color: #fff;
      font-size: 12px;
      padding: 4px 12px;
      border-radius: 999px;
    }
    .case-content {
      padding: 28px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .case-title {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .case-points {
      margin: 16px 0;
      padding: 16px;
      background: var(--bg-soft);
      border-radius: var(--radius-md);
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .case-points strong {
      color: var(--primary);
    }
    .case-metric-row {
      margin-top: auto;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      padding-top: 16px;
      border-top: 1px solid var(--border-color);
    }
    .case-stat-val {
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
    }
    .case-stat-lbl {
      font-size: 12px;
      color: var(--text-light);
    }

    /* 9. 里程碑：全流程实施交付生命周期（Milestones） */
    .timeline-wrap {
      position: relative;
      max-width: 1000px;
      margin: 0 auto;
    }
    .timeline-wrap::before {
      content: '';
      position: absolute;
      left: 50%;
      top: 20px;
      bottom: 20px;
      width: 2px;
      background: #cbd5e1;
      transform: translateX(-50%);
    }
    .timeline-node {
      display: flex;
      margin-bottom: 36px;
      position: relative;
    }
    .timeline-node:last-child {
      margin-bottom: 0;
    }
    .timeline-node:nth-child(odd) {
      flex-direction: row-reverse;
    }
    .node-content {
      width: 45%;
      background: var(--bg-white);
      padding: 24px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-card);
    }
    .node-dot {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: var(--primary);
      border: 4px solid #dbeafe;
      position: absolute;
      left: 50%;
      top: 24px;
      transform: translateX(-50%);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 12px;
      font-weight: 700;
      z-index: 2;
    }
    .node-step-tag {
      font-size: 12px;
      font-weight: 700;
      color: var(--accent);
      text-transform: uppercase;
      letter-spacing: 0.5px;
      margin-bottom: 6px;
    }
    .node-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .node-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 10. 院校管理者真实信赖评价区（Testimonials） */
    .testi-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .testi-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: var(--shadow-card);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testi-quote {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
      position: relative;
    }
    .testi-quote i {
      color: #cbd5e1;
      font-size: 20px;
      margin-bottom: 8px;
      display: block;
    }
    .testi-author {
      display: flex;
      align-items: center;
      gap: 14px;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
    }
    .author-avatar {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: #eff6ff;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 16px;
    }
    .author-name {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
    }
    .author-role {
      font-size: 12px;
      color: var(--text-light);
    }

    /* 11. 校园数智动态与行业资讯精要区（News & Insights） */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .news-card {
      background: var(--bg-white);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      padding: 24px;
      box-shadow: var(--shadow-card);
      display: flex;
      flex-direction: column;
    }
    .news-meta {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 12px;
    }
    .news-tag {
      font-size: 11px;
      font-weight: 600;
      color: var(--accent);
      background: #e0f2fe;
      padding: 3px 8px;
      border-radius: 4px;
    }
    .news-date {
      font-size: 12px;
      color: var(--text-light);
    }
    .news-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.45;
      margin-bottom: 12px;
    }
    .news-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex: 1;
    }
    .news-link-btn {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
    }
    .news-link-btn:hover {
      color: var(--accent);
    }

    /* 12. 快速解答：智慧校园建设异议拆解问答区（FAQ Accordion） */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-item {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      margin-bottom: 14px;
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .faq-header {
      width: 100%;
      text-align: left;
      background: none;
      border: none;
      padding: 20px 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
    }
    .faq-header i {
      font-size: 14px;
      color: var(--text-light);
      transition: transform 0.3s ease;
    }
    .faq-body {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      background: #fafcff;
      border-top: 1px solid transparent;
      padding: 0 24px;
    }
    .faq-item.active .faq-header {
      color: var(--primary);
    }
    .faq-item.active .faq-header i {
      transform: rotate(180deg);
      color: var(--primary);
    }
    .faq-item.active .faq-body {
      max-height: 240px;
      padding: 16px 24px 22px 24px;
      border-top-color: var(--border-color);
    }
    .faq-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 13. 平台保障：权威资质与服务承诺条（Trust & Security Bar） */
    .trust-strip {
      background: #ffffff;
      padding: 50px 0;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .trust-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .trust-item {
      display: flex;
      align-items: center;
      gap: 16px;
      padding: 16px 20px;
      background: var(--bg-soft);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
    }
    .trust-icon {
      font-size: 28px;
      color: var(--accent);
      flex-shrink: 0;
    }
    .trust-info h5 {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 2px;
    }
    .trust-info p {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 行动激发与方案索取转化区（Bottom CTA Section） */
    .cta-final-section {
      background: linear-gradient(135deg, #1e3a8a, #0f172a);
      color: #ffffff;
      padding: 85px 0;
      position: relative;
    }
    .cta-card-box {
      max-width: 960px;
      margin: 0 auto;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-xl);
      padding: 48px;
      backdrop-filter: blur(12px);
      display: grid;
      grid-template-columns: 1.1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .cta-text-side h3 {
      font-size: 30px;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 16px;
    }
    .cta-text-side p {
      font-size: 15px;
      color: #cbd5e1;
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .cta-features-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .cta-features-list li {
      font-size: 13px;
      color: #e2e8f0;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .cta-features-list i {
      color: #38bdf8;
    }
    .cta-form-side {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 30px;
      color: var(--text-main);
    }
    .cta-form-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 18px;
      text-align: center;
      color: var(--text-main);
    }
    .form-group {
      margin-bottom: 14px;
    }
    .form-input {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      font-size: 14px;
      outline: none;
      transition: var(--transition);
    }
    .form-input:focus {
      border-color: #0284c7;
      box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
    }
    .form-submit-btn {
      width: 100%;
      background: var(--primary);
      color: #ffffff;
      border: none;
      padding: 12px;
      border-radius: var(--radius-md);
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      transition: var(--transition);
      margin-top: 8px;
    }
    .form-submit-btn:hover {
      background: var(--primary-hover);
    }
    .form-privacy-tip {
      font-size: 11px;
      color: var(--text-light);
      text-align: center;
      margin-top: 10px;
    }

    /* 屏幕底端悬浮转化条（Sticky Action Bar） */
    .sticky-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: rgba(15, 23, 42, 0.95);
      backdrop-filter: blur(10px);
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding: 12px 24px;
      z-index: 990;
      box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
    }
    .sticky-bar-inner {
      max-width: var(--container-max);
      margin: 0 auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .sticky-bar-text {
      color: #ffffff;
      font-size: 14px;
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .sticky-badge {
      background: #0284c7;
      color: #fff;
      font-size: 11px;
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 600;
    }
    .sticky-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn-sticky-tel {
      color: #38bdf8;
      font-weight: 700;
      font-size: 15px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .btn-sticky-cta {
      background: #0284c7;
      color: #fff;
      padding: 8px 18px;
      border-radius: var(--radius-md);
      font-size: 13px;
      font-weight: 600;
    }
    .btn-sticky-cta:hover {
      background: #0369a1;
    }

    /* 统一规范页脚 */
    .footer-site {
      background: #090e17;
      color: #94a3b8;
      padding: 70px 0 35px 0;
      font-size: 14px;
      margin-bottom: 56px; /* 为固定吸附条留出间距 */
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 40px;
      padding-bottom: 48px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-brand h4 {
      color: #ffffff;
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .footer-brand p {
      font-size: 13px;
      line-height: 1.8;
      color: #64748b;
      margin-bottom: 18px;
    }
    .footer-col h5 {
      color: #ffffff;
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a {
      color: #94a3b8;
      font-size: 13px;
    }
    .footer-links a:hover {
      color: #38bdf8;
    }
    .footer-bottom {
      padding-top: 30px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: #475569;
    }
    .footer-bottom-links a {
      color: #64748b;
      margin-left: 18px;
    }
    .footer-bottom-links a:hover {
      color: #94a3b8;
    }

    /* 移动端与平板响应式适配 */
    @media (max-width: 1024px) {
      .hero-spec-strip, .kpi-grid, .trust-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .matrix-grid, .scenario-grid, .testi-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .arch-grid, .dark-split, .cta-card-box, .case-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 24px;
        box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        display: none;
        gap: 18px;
      }
      .nav-menu.active {
        display: flex;
      }
      .nav-cta-btn {
        display: none;
      }
      .hero-title {
        font-size: 32px;
      }
      .hero-spec-strip, .kpi-grid, .matrix-grid, .scenario-grid, .testi-grid, .news-grid, .trust-grid {
        grid-template-columns: 1fr;
      }
      .section-spacing {
        padding: 56px 0;
      }
      .timeline-wrap::before {
        left: 20px;
      }
      .timeline-node {
        flex-direction: column !important;
        padding-left: 48px;
      }
      .timeline-node .node-content {
        width: 100%;
      }
      .timeline-node .node-dot {
        left: 20px;
      }
      .cta-card-box {
        padding: 24px;
      }
      .sticky-bar-text {
        display: none;
      }
      .sticky-bar-inner {
        justify-content: center;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }