/* roulang page: index */
:root {
      --primary-navy: #0B3B60;
      --primary-blue: #0066CC;
      --accent-orange: #FF6B35;
      --accent-green: #10B981;
      --dark-surface: #0A192F;
      --dark-card: #112240;
      --light-bg: #F8FAFC;
      --light-alt: #F1F5F9;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
      --radius-lg: 18px;
      --radius-sm: 8px;
      --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
      --shadow-lg: 0 10px 25px -5px rgba(11, 59, 96, 0.1), 0 8px 10px -6px rgba(11, 59, 96, 0.08);
      --shadow-hover: 0 20px 30px -10px rgba(0, 102, 204, 0.2);
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: #FFFFFF;
      line-height: 1.7;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    a { color: var(--primary-blue); text-decoration: none; transition: all 0.25s ease; }
    a:hover { color: var(--accent-orange); }
    img { max-width: 100%; height: auto; display: block; }

    /* 顶部通用导航 - 居中 Logo + 两侧菜单 */
    .top-meta-bar {
      background: #06152B;
      color: #94A3B8;
      font-size: 13px;
      padding: 6px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .top-meta-bar .grid-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .top-meta-links span { margin-right: 18px; }
    .top-meta-links i { color: var(--accent-green); margin-right: 5px; }

    .site-header {
      background: #FFFFFF;
      position: sticky;
      top: 0;
      z-index: 1000;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
    }
    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 80px;
    }
    .nav-group {
      display: flex;
      align-items: center;
      list-style: none;
      margin: 0;
      flex: 1;
    }
    .nav-group.left-nav { justify-content: flex-end; padding-right: 30px; }
    .nav-group.right-nav { justify-content: flex-start; padding-left: 30px; }
    .nav-group li { margin: 0 14px; }
    .nav-group a {
      color: var(--text-main);
      font-weight: 600;
      font-size: 15px;
      padding: 8px 4px;
      position: relative;
    }
    .nav-group a:hover, .nav-group a.active {
      color: var(--primary-blue);
    }
    .nav-group a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--primary-blue);
      transition: width 0.3s ease;
    }
    .nav-group a:hover::after, .nav-group a.active::after { width: 100%; }

    .brand-logo-center {
      text-align: center;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      min-width: 200px;
    }
    .brand-logo-center .logo-title {
      font-size: 22px;
      font-weight: 800;
      background: linear-gradient(135deg, var(--primary-navy), var(--primary-blue));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      letter-spacing: -0.5px;
      line-height: 1.2;
    }
    .brand-logo-center .logo-tag {
      font-size: 11px;
      color: var(--text-muted);
      letter-spacing: 2px;
      text-transform: uppercase;
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--primary-navy);
      cursor: pointer;
    }

    /* 移动端抽屉菜单 */
    .mobile-drawer {
      display: none;
      position: fixed;
      top: 80px;
      left: 0;
      width: 100%;
      background: #FFFFFF;
      box-shadow: 0 15px 25px rgba(0,0,0,0.1);
      padding: 20px;
      z-index: 999;
    }
    .mobile-drawer.active { display: block; }
    .mobile-drawer ul { list-style: none; margin: 0; }
    .mobile-drawer li { margin: 12px 0; }
    .mobile-drawer a { font-size: 16px; font-weight: 600; color: var(--text-main); display: block; padding: 6px 0; }

    /* 通用板块与组件 */
    .site-section {
      padding: 85px 0;
      position: relative;
    }
    .section-header {
      margin-bottom: 50px;
      text-align: center;
    }
    .section-header.text-left { text-align: left; }
    .section-subtitle-pill {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      padding: 6px 14px;
      border-radius: 50px;
      background: rgba(0, 102, 204, 0.08);
      color: var(--primary-blue);
      margin-bottom: 12px;
    }
    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--primary-navy);
      line-height: 1.3;
      margin-bottom: 14px;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      max-width: 760px;
      margin: 0 auto;
      line-height: 1.8;
    }
    .section-header.text-left .section-desc { margin-left: 0; }

    .card-modern {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      padding: 32px;
      box-shadow: var(--shadow-sm);
      transition: all 0.35s ease;
      position: relative;
      height: 100%;
    }
    .card-modern:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(0, 102, 204, 0.4);
    }

    .badge-pill {
      display: inline-flex;
      align-items: center;
      font-size: 12px;
      font-weight: 600;
      padding: 4px 10px;
      border-radius: 50px;
      background: #EEF6FF;
      color: var(--primary-blue);
    }
    .badge-pill.success { background: #ECFDF5; color: var(--accent-green); }
    .badge-pill.warning { background: #FFF7ED; color: var(--accent-orange); }

    .btn-brand-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, var(--primary-navy) 0%, var(--primary-blue) 100%);
      color: #FFFFFF;
      font-weight: 600;
      font-size: 15px;
      padding: 14px 28px;
      border-radius: 50px;
      border: none;
      cursor: pointer;
      box-shadow: 0 4px 14px rgba(0, 102, 204, 0.3);
      transition: all 0.3s ease;
    }
    .btn-brand-primary:hover {
      background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-navy) 100%);
      color: #FFFFFF;
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(0, 102, 204, 0.4);
    }
    .btn-brand-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: #FFFFFF;
      color: var(--primary-navy);
      font-weight: 600;
      font-size: 15px;
      padding: 14px 28px;
      border-radius: 50px;
      border: 1px solid var(--border-color);
      cursor: pointer;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }
    .btn-brand-secondary:hover {
      background: var(--light-alt);
      color: var(--primary-blue);
      border-color: var(--primary-blue);
    }

    /* 1. Hero 轮播与知识搜索板块（#hero） */
    #hero {
      position: relative;
      background: url('/assets/images/bfdd2baf66982110.jpg') center center/cover no-repeat;
      padding: 100px 0 110px;
      color: #FFFFFF;
    }
    #hero::before {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0; bottom: 0;
      background: linear-gradient(135deg, rgba(11, 59, 96, 0.94) 0%, rgba(10, 25, 47, 0.88) 100%);
    }
    .hero-content-wrapper { position: relative; z-index: 2; text-align: center; }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      padding: 6px 16px;
      border-radius: 50px;
      background: rgba(255, 255, 255, 0.12);
      border: 1px solid rgba(255, 255, 255, 0.2);
      font-size: 13px;
      color: #E2E8F0;
      margin-bottom: 24px;
    }
    .hero-badge i { color: var(--accent-orange); margin-right: 8px; }
    .hero-title {
      font-size: 46px;
      font-weight: 800;
      line-height: 1.25;
      color: #FFFFFF;
      margin-bottom: 22px;
      letter-spacing: -0.5px;
    }
    .hero-lead {
      font-size: 18px;
      color: #CBD5E1;
      max-width: 820px;
      margin: 0 auto 35px;
      line-height: 1.8;
    }
    .hero-search-box {
      max-width: 680px;
      margin: 0 auto 25px;
      position: relative;
    }
    .hero-search-box input {
      width: 100%;
      height: 58px;
      border-radius: 50px;
      border: 2px solid rgba(255, 255, 255, 0.25);
      background: rgba(255, 255, 255, 0.95);
      padding: 0 140px 0 28px;
      font-size: 16px;
      color: var(--text-main);
      box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
    }
    .hero-search-box button {
      position: absolute;
      right: 6px;
      top: 6px;
      height: 46px;
      padding: 0 24px;
      border-radius: 50px;
      background: var(--accent-orange);
      color: #FFFFFF;
      font-weight: 600;
      border: none;
      cursor: pointer;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .hero-hot-chips {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      align-items: center;
      gap: 10px;
      margin-top: 15px;
    }
    .hero-hot-chips span { font-size: 13px; color: #94A3B8; }
    .hero-hot-chips a {
      font-size: 13px;
      padding: 4px 12px;
      background: rgba(255, 255, 255, 0.1);
      border-radius: 30px;
      color: #E2E8F0;
      border: 1px solid rgba(255, 255, 255, 0.15);
    }
    .hero-hot-chips a:hover { background: rgba(255, 255, 255, 0.25); color: #FFFFFF; }

    /* 2. 品牌与产品体系概览（#product-overview） */
    #product-overview { background: #FFFFFF; }
    .arch-spec-card {
      background: var(--light-bg);
      border-radius: var(--radius-lg);
      padding: 30px;
      border: 1px solid var(--border-color);
    }
    .spec-table-row {
      display: flex;
      justify-content: space-between;
      padding: 12px 0;
      border-bottom: 1px solid var(--border-color);
      font-size: 14px;
    }
    .spec-table-row:last-child { border-bottom: none; }
    .spec-label { color: var(--text-muted); font-weight: 500; }
    .spec-val { color: var(--text-main); font-weight: 600; text-align: right; }

    /* 3. 核心功能分组矩阵（#features） */
    #features { background: var(--light-bg); }
    .feature-icon-box {
      width: 58px;
      height: 58px;
      border-radius: 14px;
      background: linear-gradient(135deg, rgba(0, 102, 204, 0.1), rgba(11, 59, 96, 0.1));
      color: var(--primary-blue);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      margin-bottom: 20px;
    }

    /* 4. 热门赛事解决方案组合（#solutions） */
    #solutions { background: #FFFFFF; }
    .solution-card-img {
      border-radius: 12px;
      overflow: hidden;
      margin-bottom: 20px;
      height: 180px;
    }
    .solution-card-img img { width: 100%; height: 100%; object-fit: cover; }
    .solution-features-list { list-style: none; margin: 16px 0 0; }
    .solution-features-list li {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
    }
    .solution-features-list li i { color: var(--accent-green); margin-right: 8px; font-size: 12px; }

    /* 5. 深色全景案例与技术理念区（#technology） */
    #technology {
      background: var(--dark-surface);
      color: #FFFFFF;
    }
    #technology .section-title { color: #FFFFFF; }
    #technology .section-desc { color: #94A3B8; }
    .tech-console-box {
      background: var(--dark-card);
      border-radius: var(--radius-lg);
      padding: 35px;
      border: 1px solid rgba(255, 255, 255, 0.08);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    }
    .tech-metric-item {
      padding: 20px;
      background: rgba(255, 255, 255, 0.03);
      border-radius: 12px;
      border: 1px solid rgba(255, 255, 255, 0.05);
      margin-bottom: 15px;
    }
    .tech-metric-item h4 { font-size: 24px; color: var(--accent-orange); font-weight: 700; margin-bottom: 4px; }
    .tech-metric-item p { font-size: 13px; color: #94A3B8; margin: 0; }

    /* 6. 多维使用场景穿梭（#scenarios） */
    #scenarios { background: var(--light-alt); }
    .timeline-scenario-step {
      display: flex;
      gap: 30px;
      align-items: center;
      margin-bottom: 45px;
    }
    .timeline-scenario-step.reverse { flex-direction: row-reverse; }
    .scenario-text-col { flex: 1; }
    .scenario-img-col { flex: 1; }
    .scenario-img-col img {
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-lg);
      width: 100%;
      height: 280px;
      object-fit: cover;
    }

    /* 7. 界面实操演示与大图展台（#showcase） */
    #showcase { background: #FFFFFF; }
    .showcase-stage {
      position: relative;
      background: linear-gradient(180deg, #F8FAFC 0%, #FFFFFF 100%);
      border-radius: var(--radius-lg);
      padding: 40px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-lg);
    }
    .showcase-img-wrap {
      border-radius: 12px;
      overflow: hidden;
      border: 1px solid #CBD5E1;
    }

    /* 8. 标杆赛事数字化实效（#stories） */
    #stories { background: var(--light-bg); }
    .story-hero-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      padding: 35px;
      box-shadow: var(--shadow-sm);
    }
    .story-hero-card .story-stat {
      font-size: 36px;
      font-weight: 800;
      color: var(--primary-blue);
      line-height: 1;
      margin-bottom: 6px;
    }

    /* 9. 关键运营数据统计条（#metrics） */
    #metrics {
      background: linear-gradient(135deg, var(--primary-navy) 0%, #061A35 100%);
      color: #FFFFFF;
      padding: 60px 0;
    }
    .metric-counter-col { text-align: center; border-right: 1px solid rgba(255, 255, 255, 0.1); }
    .metric-counter-col:last-child { border-right: none; }
    .metric-counter-col .num {
      font-size: 44px;
      font-weight: 800;
      color: #FFFFFF;
      line-height: 1.1;
      margin-bottom: 8px;
    }
    .metric-counter-col .num span { color: var(--accent-orange); }
    .metric-counter-col .label { font-size: 14px; color: #94A3B8; }

    /* 10. 多角色客户评价墙（#testimonials） */
    #testimonials { background: #FFFFFF; }
    .testimonial-avatar-row {
      display: flex;
      align-items: center;
      margin-top: 20px;
      padding-top: 20px;
      border-top: 1px solid var(--border-color);
    }
    .testimonial-avatar {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #E2E8F0;
      margin-right: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary-navy);
    }

    /* 11. 赛事行业资讯与知识库（#news） */
    #news { background: var(--light-bg); }
    .news-date-badge {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .news-title { font-size: 18px; font-weight: 700; color: var(--primary-navy); margin-bottom: 10px; line-height: 1.4; }

    /* 12. 常见技术与服务疑问 FAQ（#faq） */
    #faq { background: #FFFFFF; }
    .accordion-item-custom {
      border: 1px solid var(--border-color);
      border-radius: 12px;
      margin-bottom: 16px;
      overflow: hidden;
      background: #FFFFFF;
      transition: all 0.25s ease;
    }
    .accordion-title-custom {
      padding: 20px 24px;
      font-weight: 700;
      font-size: 16px;
      color: var(--primary-navy);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .accordion-title-custom:hover { background: var(--light-bg); color: var(--primary-blue); }
    .accordion-content-custom {
      padding: 0 24px 20px;
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
      display: none;
    }
    .accordion-item-custom.active .accordion-content-custom { display: block; }
    .accordion-item-custom.active { border-color: var(--primary-blue); box-shadow: var(--shadow-sm); }
    .accordion-item-custom.active .accordion-title-custom i { transform: rotate(180deg); }

    /* 13. 底部转化驱动 CTA（#cta） */
    #cta { background: var(--light-alt); padding: 70px 0 90px; }
    .cta-banner-wrapper {
      background: linear-gradient(135deg, var(--primary-navy) 0%, var(--primary-blue) 100%);
      border-radius: 24px;
      padding: 60px 40px;
      color: #FFFFFF;
      text-align: center;
      box-shadow: 0 20px 40px rgba(0, 102, 204, 0.25);
    }
    .cta-banner-wrapper h2 { color: #FFFFFF; font-size: 34px; font-weight: 800; margin-bottom: 16px; }
    .cta-banner-wrapper p { color: #E2E8F0; font-size: 16px; max-width: 700px; margin: 0 auto 30px; }

    /* 页脚 Footer */
    .site-footer {
      background: #06152B;
      color: #94A3B8;
      padding: 70px 0 30px;
      font-size: 14px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-title { color: #FFFFFF; font-size: 16px; font-weight: 700; margin-bottom: 20px; }
    .footer-links { list-style: none; margin: 0; }
    .footer-links li { margin-bottom: 10px; }
    .footer-links a { color: #94A3B8; font-size: 14px; }
    .footer-links a:hover { color: #FFFFFF; }
    .footer-bottom-bar {
      margin-top: 50px;
      padding-top: 25px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 13px;
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 15px;
    }

    /* 响应式样式处理 */
    @media (max-width: 1024px) {
      .nav-group { display: none; }
      .mobile-menu-btn { display: block; }
      .brand-logo-center { min-width: auto; }
      .hero-title { font-size: 36px; }
      .metric-counter-col { border-right: none; margin-bottom: 25px; }
      .timeline-scenario-step, .timeline-scenario-step.reverse { flex-direction: column; }
    }
    @media (max-width: 640px) {
      .hero-title { font-size: 28px; }
      .section-title { font-size: 24px; }
      .hero-search-box input { padding-right: 20px; height: 50px; margin-bottom: 10px; }
      .hero-search-box button { position: static; width: 100%; justify-content: center; height: 46px; }
      .cta-banner-wrapper { padding: 40px 20px; }
    }