/* roulang page: index */
:root {
      --primary: #00A389;
      --primary-hover: #008771;
      --accent: #FF6B35;
      --accent-hover: #E85520;
      --dark-slate: #0F172A;
      --dark-card: #1E293B;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --text-light: #94A3B8;
      --bg-light: #F8FAFC;
      --bg-white: #FFFFFF;
      --border-color: #E2E8F0;
      --radius-sm: 6px;
      --radius-md: 8px;
      --radius-chip: 16px;
      --shadow-subtle: 0 1px 3px rgba(0, 0, 0, 0.05);
      --shadow-hover: 0 10px 25px -5px rgba(0, 0, 0, 0.08);
      --transition: all 0.25s ease;
      --font-stack: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, sans-serif;
      --font-mono: Inter, Monaco, Consolas, monospace;
    }

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

    body {
      font-family: var(--font-stack);
      color: var(--text-main);
      background-color: var(--bg-white);
      line-height: 1.65;
      font-size: 15px;
      -webkit-font-smoothing: antialiased;
    }

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

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

    /* 顶部导航 */
    .top-header {
      background-color: var(--dark-slate);
      color: #FFFFFF;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      position: sticky;
      top: 0;
      z-index: 100;
    }
    .header-main-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 14px 20px;
    }
    .brand-logo {
      font-size: 20px;
      font-weight: 700;
      color: #FFFFFF;
      display: flex;
      align-items: center;
      gap: 10px;
      letter-spacing: -0.2px;
    }
    .brand-badge {
      font-size: 11px;
      background-color: var(--primary);
      color: #FFFFFF;
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 600;
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 20px;
    }
    .header-contact {
      font-size: 13px;
      color: var(--text-light);
      display: none;
    }
    .btn-header-cta {
      background-color: var(--accent);
      color: #FFFFFF !important;
      font-weight: 600;
      padding: 8px 18px;
      border-radius: var(--radius-sm);
      font-size: 13px;
      display: inline-flex;
      align-items: center;
      transition: var(--transition);
    }
    .btn-header-cta:hover {
      background-color: var(--accent-hover);
    }

    /* 分类横滑 Chip 导航条 */
    .chip-nav-bar {
      background-color: #162032;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding: 8px 16px;
    }
    .chip-scroll-container {
      display: flex;
      overflow-x: auto;
      white-space: nowrap;
      gap: 10px;
      scrollbar-width: none;
      -webkit-overflow-scrolling: touch;
      align-items: center;
    }
    .chip-scroll-container::-webkit-scrollbar {
      display: none;
    }
    .nav-chip {
      display: inline-block;
      padding: 6px 14px;
      border-radius: var(--radius-chip);
      font-size: 13px;
      color: var(--text-light);
      background-color: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.08);
      transition: var(--transition);
      flex-shrink: 0;
    }
    .nav-chip:hover, .nav-chip.active {
      background-color: var(--primary);
      color: #FFFFFF;
      border-color: var(--primary);
    }

    /* 通用排版与板块留白 */
    .site-section {
      padding: 88px 0;
      border-bottom: 1px solid var(--border-color);
    }
    .section-title-wrap {
      margin-bottom: 48px;
    }
    .section-tag {
      display: inline-block;
      color: var(--primary);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 1px;
      text-transform: uppercase;
      margin-bottom: 8px;
    }
    .section-title {
      font-size: 30px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 14px;
    }
    .section-desc {
      color: var(--text-muted);
      font-size: 15px;
      max-width: 780px;
      line-height: 1.7;
    }

    /* 按钮组 */
    .btn-brand-primary {
      background-color: var(--primary);
      color: #FFFFFF !important;
      padding: 13px 26px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 15px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border: 1px solid var(--primary);
      transition: var(--transition);
    }
    .btn-brand-primary:hover {
      background-color: var(--primary-hover);
      border-color: var(--primary-hover);
    }
    .btn-brand-secondary {
      background-color: transparent;
      color: var(--text-main);
      padding: 13px 24px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 15px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border: 1px solid var(--border-color);
      transition: var(--transition);
    }
    .btn-brand-secondary:hover {
      border-color: var(--text-main);
      background-color: var(--bg-light);
    }

    /* 板块 1: Hero 对比首屏 */
    .hero-section {
      background-color: var(--dark-slate);
      color: #FFFFFF;
      padding: 80px 0 90px;
      position: relative;
      overflow: hidden;
      background-image: linear-gradient(135deg, rgba(15, 23, 42, 0.94) 0%, rgba(15, 23, 42, 0.88) 100%), url('/assets/images/79821514a4a2417d.png');
      background-size: cover;
      background-position: center;
    }
    .hero-h1 {
      font-size: 42px;
      font-weight: 700;
      line-height: 1.25;
      margin-bottom: 20px;
      color: #FFFFFF;
    }
    .hero-intro {
      font-size: 16px;
      line-height: 1.8;
      color: #CBD5E1;
      margin-bottom: 30px;
      max-width: 620px;
    }
    .hero-cta-group {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 32px;
    }
    .hero-compare-stage {
      background: rgba(30, 41, 59, 0.7);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-md);
      padding: 24px;
      backdrop-filter: blur(8px);
    }
    .compare-pill-row {
      display: flex;
      gap: 12px;
      margin-bottom: 16px;
    }
    .badge-pill-before {
      background: rgba(239, 68, 68, 0.2);
      color: #F87171;
      border: 1px solid rgba(239, 68, 68, 0.3);
      padding: 4px 10px;
      font-size: 12px;
      border-radius: 4px;
      font-weight: 600;
    }
    .badge-pill-after {
      background: rgba(16, 185, 129, 0.2);
      color: #34D399;
      border: 1px solid rgba(16, 185, 129, 0.3);
      padding: 4px 10px;
      font-size: 12px;
      border-radius: 4px;
      font-weight: 600;
    }
    .contrast-item {
      font-size: 13px;
      padding: 10px 0;
      border-bottom: 1px dashed rgba(255, 255, 255, 0.1);
      display: flex;
      justify-content: space-between;
      color: #E2E8F0;
    }
    .contrast-item:last-child {
      border-bottom: none;
    }

    /* 板块 2: 指标看板区 */
    .bg-light-neutral {
      background-color: var(--bg-light);
    }
    .metric-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      box-shadow: var(--shadow-subtle);
      transition: var(--transition);
      height: 100%;
    }
    .metric-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-3px);
    }
    .metric-num {
      font-size: 40px;
      font-weight: 700;
      font-family: var(--font-mono);
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 8px;
    }
    .metric-label {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .metric-badge {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      font-size: 12px;
      font-weight: 600;
      color: var(--accent);
      background-color: rgba(255, 107, 53, 0.1);
      padding: 2px 8px;
      border-radius: 4px;
      margin-bottom: 10px;
    }
    .metric-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 板块 3: 场馆数字化中台与参数 */
    .param-box {
      background: var(--bg-light);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px;
      margin-top: 24px;
    }
    .param-item {
      display: flex;
      align-items: baseline;
      gap: 12px;
      margin-bottom: 10px;
      font-size: 14px;
      color: var(--text-main);
    }
    .param-item:last-child {
      margin-bottom: 0;
    }
    .param-tag {
      font-weight: 700;
      color: var(--primary);
      font-size: 12px;
      border: 1px solid var(--primary);
      padding: 2px 6px;
      border-radius: 4px;
      flex-shrink: 0;
    }

    /* 板块 4: 核心优势矩阵 */
    .feature-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      transition: var(--transition);
      height: 100%;
      margin-bottom: 24px;
    }
    .feature-card:hover {
      box-shadow: var(--shadow-hover);
      border-color: var(--primary);
    }
    .feature-code {
      font-size: 12px;
      font-weight: 700;
      color: var(--primary);
      font-family: var(--font-mono);
      margin-bottom: 12px;
    }
    .feature-h3 {
      font-size: 18px;
      font-weight: 600;
      margin-bottom: 10px;
      color: var(--text-main);
    }
    .feature-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块 5: 垂直方案深度卡片 */
    .vertical-solution-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-subtle);
      transition: var(--transition);
      margin-bottom: 24px;
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .vertical-solution-card:hover {
      box-shadow: var(--shadow-hover);
    }
    .solution-img-holder {
      height: 190px;
      overflow: hidden;
    }
    .solution-img-holder img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .vertical-solution-card:hover .solution-img-holder img {
      transform: scale(1.04);
    }
    .solution-body {
      padding: 26px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .solution-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-bottom: 14px;
    }
    .solution-chip {
      background: var(--bg-light);
      color: var(--text-muted);
      border: 1px solid var(--border-color);
      padding: 3px 10px;
      font-size: 12px;
      border-radius: 12px;
    }
    .solution-h3 {
      font-size: 19px;
      font-weight: 600;
      margin-bottom: 12px;
    }
    .solution-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
      flex-grow: 1;
    }

    /* 板块 6: 深色对比看板区 */
    .dark-contrast-section {
      background-color: var(--dark-slate);
      color: #FFFFFF;
      padding: 90px 0;
    }
    .contrast-table-box {
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-md);
      overflow: hidden;
      background: #141E33;
    }
    .contrast-table-head {
      display: flex;
      background: rgba(255, 255, 255, 0.05);
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      font-weight: 600;
      font-size: 15px;
    }
    .contrast-col-title {
      padding: 16px 20px;
      flex: 1;
    }
    .contrast-col-title:first-child {
      max-width: 180px;
      color: var(--text-light);
    }
    .contrast-row-item {
      display: flex;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      font-size: 14px;
    }
    .contrast-row-item:last-child {
      border-bottom: none;
    }
    .contrast-cell {
      padding: 16px 20px;
      flex: 1;
      line-height: 1.6;
    }
    .contrast-cell.dimension {
      max-width: 180px;
      font-weight: 600;
      color: #CBD5E1;
      background: rgba(0, 0, 0, 0.15);
    }
    .contrast-cell.legacy {
      color: #94A3B8;
      border-right: 1px solid rgba(255, 255, 255, 0.06);
    }
    .contrast-cell.smart {
      color: #6EE7B7;
      background: rgba(0, 163, 137, 0.08);
      font-weight: 500;
    }

    /* 板块 7: 实施里程碑时间线 */
    .timeline-container {
      position: relative;
      margin-top: 30px;
    }
    .timeline-container::before {
      content: "";
      position: absolute;
      top: 24px;
      left: 0;
      right: 0;
      height: 2px;
      background: var(--border-color);
      z-index: 1;
      display: none;
    }
    .step-item {
      position: relative;
      z-index: 2;
      background: var(--bg-white);
      padding: 24px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 20px;
      transition: var(--transition);
    }
    .step-item:hover {
      border-color: var(--primary);
    }
    .step-badge {
      width: 42px;
      height: 42px;
      background: var(--primary);
      color: #FFFFFF;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      font-weight: 700;
      font-size: 16px;
      margin-bottom: 16px;
    }
    .step-h4 {
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 8px;
    }
    .step-text {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块 8: 标杆客户案例 */
    .case-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-subtle);
      margin-bottom: 24px;
      display: flex;
      flex-direction: column;
    }
    .case-card-img {
      height: 220px;
      overflow: hidden;
    }
    .case-card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .case-card-content {
      padding: 28px;
    }
    .case-org {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .case-quote {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      border-left: 3px solid var(--primary);
      padding-left: 14px;
      margin-bottom: 18px;
      font-style: italic;
    }
    .case-stats-row {
      display: flex;
      gap: 20px;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
    }
    .case-stat-item strong {
      display: block;
      font-size: 18px;
      color: var(--accent);
      font-family: var(--font-mono);
    }
    .case-stat-item span {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 9: 关键赋能总量统计条 */
    .stats-bar-section {
      background: linear-gradient(135deg, #0A5447 0%, #007A66 100%);
      color: #FFFFFF;
      padding: 56px 0;
    }
    .stat-bar-block {
      text-align: center;
      padding: 12px;
    }
    .stat-bar-number {
      font-size: 42px;
      font-weight: 700;
      font-family: var(--font-mono);
      line-height: 1.1;
      margin-bottom: 6px;
      letter-spacing: -1px;
    }
    .stat-bar-title {
      font-size: 14px;
      color: #A7F3D0;
      font-weight: 500;
    }

    /* 板块 10: 资讯动态与行业洞察 */
    .news-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      height: 100%;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
      margin-bottom: 20px;
    }
    .news-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-hover);
    }
    .news-date {
      font-size: 12px;
      color: var(--text-muted);
      font-family: var(--font-mono);
      margin-bottom: 10px;
    }
    .news-title {
      font-size: 17px;
      font-weight: 600;
      line-height: 1.45;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .news-summary {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
      margin-bottom: 16px;
    }
    .news-tag {
      font-size: 12px;
      color: var(--primary);
      font-weight: 600;
    }

    /* 板块 11: 平台安全与 FAQ 手风琴 */
    .security-badge-box {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      margin-bottom: 16px;
    }
    .sec-h4 {
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 8px;
      color: var(--text-main);
    }
    .sec-p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }
    .accordion-item {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
      background: var(--bg-white);
      overflow: hidden;
    }
    .accordion-title {
      padding: 16px 20px;
      font-size: 15px;
      font-weight: 600;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      user-select: none;
      transition: var(--transition);
    }
    .accordion-title:hover {
      background-color: var(--bg-light);
    }
    .accordion-title::after {
      content: "+";
      font-size: 18px;
      font-weight: 400;
      color: var(--primary);
      transition: var(--transition);
    }
    .is-active > .accordion-title::after {
      content: "−";
    }
    .accordion-content {
      padding: 16px 20px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      background: var(--bg-light);
      border-top: 1px solid var(--border-color);
    }

    /* 板块 12: 底部转化表单 CTA */
    .cta-lead-section {
      background-color: #0B132B;
      color: #FFFFFF;
      padding: 80px 0;
    }
    .cta-form-card {
      background: #FFFFFF;
      color: var(--text-main);
      border-radius: var(--radius-md);
      padding: 36px 32px;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    }
    .form-label {
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
      display: block;
    }
    .form-input, .form-select {
      height: 48px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 0 14px;
      font-size: 14px;
      width: 100%;
      outline: none;
      transition: var(--transition);
      margin-bottom: 18px;
    }
    .form-input:focus, .form-select:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(0, 163, 137, 0.15);
    }
    .btn-submit-form {
      width: 100%;
      height: 48px;
      background-color: var(--primary);
      color: #FFFFFF;
      border: none;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      transition: var(--transition);
    }
    .btn-submit-form:hover {
      background-color: var(--primary-hover);
    }

    /* 全局页脚 */
    .site-footer {
      background-color: #090E1A;
      color: #94A3B8;
      padding: 60px 0 30px;
      font-size: 13px;
      line-height: 1.7;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-brand {
      font-size: 18px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 14px;
    }
    .footer-col-title {
      font-size: 14px;
      font-weight: 600;
      color: #FFFFFF;
      margin-bottom: 16px;
    }
    .footer-links-list {
      list-style: none;
    }
    .footer-links-list li {
      margin-bottom: 8px;
    }
    .footer-links-list a {
      color: #94A3B8;
    }
    .footer-links-list a:hover {
      color: var(--primary);
    }
    .footer-bottom-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      margin-top: 40px;
      padding-top: 24px;
      text-align: center;
      font-size: 12px;
      color: #64748B;
    }

    /* 响应式断点适配 */
    @media (min-width: 640px) {
      .header-contact {
        display: block;
      }
      .timeline-container::before {
        display: block;
      }
    }
    @media (max-width: 768px) {
      .site-section {
        padding: 56px 0;
      }
      .hero-h1 {
        font-size: 32px;
      }
      .contrast-table-box {
        overflow-x: auto;
      }
      .contrast-row-item, .contrast-table-head {
        min-width: 580px;
      }
      .cta-form-card {
        padding: 24px 18px;
      }
    }