/* roulang page: index */
:root {
      --bg-deep: #070B19;
      --bg-darker: #050811;
      --bg-card: rgba(15, 23, 42, 0.72);
      --bg-card-hover: rgba(20, 32, 58, 0.85);
      --cyan-neon: #00F0FF;
      --cyan-glow: rgba(0, 240, 255, 0.35);
      --violet-hyper: #7000FF;
      --violet-glow: rgba(112, 0, 255, 0.35);
      --text-main: #FFFFFF;
      --text-muted: #94A3B8;
      --text-dim: #64748B;
      --border-subtle: rgba(0, 240, 255, 0.16);
      --border-violet: rgba(112, 0, 255, 0.3);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

    body {
      background-color: var(--bg-deep);
      color: var(--text-muted);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", PingFang SC, "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      font-size: 16px;
      line-height: 1.65;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: var(--cyan-neon);
      text-decoration: none;
      transition: var(--transition-smooth);
    }
    a:hover, a:focus {
      color: #7df8ff;
      text-shadow: 0 0 8px var(--cyan-glow);
    }

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

    /* 顶部促销/公告条 */
    .top-promo-bar {
      background: linear-gradient(90deg, #3d008a, #7000FF, #0b143a);
      color: #fff;
      font-size: 0.85rem;
      padding: 8px 16px;
      position: relative;
      z-index: 1010;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    .top-promo-bar .promo-inner {
      max-width: 1200px;
      margin: 0 auto;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
    }
    .top-promo-bar .badge-live {
      background: #ff0055;
      color: #fff;
      font-weight: 700;
      padding: 2px 8px;
      border-radius: 4px;
      font-size: 0.75rem;
      margin-right: 8px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      animation: pulse 1.8s infinite;
    }
    .top-promo-bar a.quick-link {
      color: var(--cyan-neon);
      margin-left: 14px;
      font-weight: 600;
    }

    /* 主导航栏 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(7, 11, 25, 0.85);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border-subtle);
    }
    .nav-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 14px 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: 0.5px;
    }
    .logo-badge {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--cyan-neon), var(--violet-hyper));
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 0 15px var(--cyan-glow);
      color: #050811;
      font-weight: 900;
      font-size: 1.1rem;
    }
    .nav-menu {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 24px;
      margin: 0;
    }
    .nav-menu li a {
      color: var(--text-muted);
      font-size: 0.95rem;
      font-weight: 500;
      padding: 6px 2px;
      position: relative;
    }
    .nav-menu li a:hover,
    .nav-menu li a.active {
      color: var(--text-main);
    }
    .nav-menu li a.active::after,
    .nav-menu li a:hover::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--cyan-neon);
      box-shadow: 0 0 8px var(--cyan-neon);
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .btn-glow {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 24px;
      min-height: 44px;
      min-width: 44px;
      font-size: 0.92rem;
      font-weight: 600;
      color: #070B19 !important;
      background: linear-gradient(90deg, #00F0FF, #3efcbb);
      border-radius: var(--radius-sm);
      border: none;
      cursor: pointer;
      box-shadow: 0 0 20px rgba(0, 240, 255, 0.45);
      transition: var(--transition-smooth);
    }
    .btn-glow:hover {
      transform: translateY(-2px);
      box-shadow: 0 0 28px rgba(0, 240, 255, 0.7);
      color: #000 !important;
    }
    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      min-height: 44px;
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--cyan-neon);
      background: rgba(0, 240, 255, 0.06);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-sm);
      transition: var(--transition-smooth);
    }
    .btn-outline:hover {
      border-color: var(--cyan-neon);
      background: rgba(0, 240, 255, 0.14);
      color: #fff;
    }

    /* 通用容器与板块规范 */
    .site-section {
      padding: 90px 20px;
      position: relative;
    }
    .site-section.alternate-bg {
      background: linear-gradient(180deg, rgba(11, 19, 43, 0.45) 0%, rgba(7, 11, 25, 0.8) 100%);
      border-top: 1px solid rgba(255, 255, 255, 0.03);
      border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    }
    .content-container {
      max-width: 1200px;
      margin: 0 auto;
    }
    .section-header {
      margin-bottom: 48px;
    }
    .section-header.text-center {
      text-align: center;
    }
    .section-tag {
      display: inline-block;
      font-size: 0.78rem;
      font-weight: 700;
      color: var(--cyan-neon);
      text-transform: uppercase;
      letter-spacing: 2px;
      padding: 4px 12px;
      background: rgba(0, 240, 255, 0.08);
      border: 1px solid rgba(0, 240, 255, 0.25);
      border-radius: 50px;
      margin-bottom: 14px;
    }
    .section-title {
      font-size: 2.15rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 16px;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 820px;
      line-height: 1.7;
      margin: 0 auto;
    }

    /* 玻璃拟态卡片 */
    .glass-card {
      background: var(--bg-card);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 28px;
      transition: var(--transition-smooth);
      height: 100%;
      position: relative;
      overflow: hidden;
    }
    .glass-card:hover {
      border-color: var(--cyan-neon);
      transform: translateY(-4px);
      box-shadow: 0 12px 30px rgba(0, 240, 255, 0.12);
      background: var(--bg-card-hover);
    }

    /* 板块1：斜切 Hero 区 */
    .hero-cut {
      position: relative;
      min-height: 640px;
      padding: 100px 20px 140px;
      background: url('/assets/images/99633dab1a0a173d.webp') center/cover no-repeat;
      display: flex;
      align-items: center;
      clip-path: polygon(0 0, 100% 0, 100% 92%, 0 100%);
      border-bottom: 2px solid var(--cyan-neon);
    }
    .hero-overlay {
      position: absolute;
      top: 0; left: 0; right: 0; bottom: 0;
      background: linear-gradient(135deg, rgba(7, 11, 25, 0.94) 15%, rgba(11, 19, 43, 0.88) 55%, rgba(112, 0, 255, 0.45) 100%);
      z-index: 1;
    }
    .hero-inner {
      position: relative;
      z-index: 2;
      max-width: 1100px;
      margin: 0 auto;
    }
    .hero-cut h1 {
      font-size: 3.35rem;
      font-weight: 900;
      color: #fff;
      line-height: 1.18;
      margin-bottom: 24px;
      text-shadow: 0 4px 20px rgba(0,0,0,0.8);
    }
    .hero-cut h1 span {
      background: linear-gradient(90deg, #00F0FF, #bd72ff);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-lead {
      font-size: 1.15rem;
      color: #cbd5e1;
      max-width: 780px;
      line-height: 1.8;
      margin-bottom: 34px;
    }
    .hero-actions {
      display: flex;
      gap: 18px;
      flex-wrap: wrap;
      align-items: center;
    }

    /* 板块2：搜索/快捷入口矩阵 */
    .search-matrix-bar {
      margin-top: -60px;
      position: relative;
      z-index: 20;
    }
    .search-panel {
      background: rgba(15, 23, 42, 0.95);
      backdrop-filter: blur(18px);
      border: 1px solid var(--cyan-neon);
      border-radius: var(--radius-md);
      padding: 24px 30px;
      box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
    }
    .search-inputs {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }
    .search-input-field {
      flex: 1;
      min-width: 260px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.15);
      color: #fff;
      padding: 12px 18px;
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      outline: none;
      transition: var(--transition-smooth);
    }
    .search-input-field:focus {
      border-color: var(--cyan-neon);
      background: rgba(0, 240, 255, 0.05);
      box-shadow: 0 0 10px var(--cyan-glow);
    }
    .quick-tags {
      margin-top: 14px;
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
      font-size: 0.85rem;
      color: var(--text-dim);
    }
    .quick-tag-item {
      color: var(--text-muted);
      background: rgba(255, 255, 255, 0.06);
      padding: 3px 10px;
      border-radius: 4px;
      border: 1px solid rgba(255, 255, 255, 0.08);
    }
    .quick-tag-item:hover {
      color: var(--cyan-neon);
      border-color: var(--cyan-neon);
    }

    /* 板块3：指标看板 */
    .metric-number {
      font-size: 2.6rem;
      font-weight: 800;
      color: var(--cyan-neon);
      line-height: 1.1;
      margin-bottom: 8px;
      font-family: "Courier New", Courier, monospace, sans-serif;
    }
    .metric-trend {
      font-size: 0.82rem;
      color: #3efcbb;
      display: inline-flex;
      align-items: center;
      gap: 4px;
      margin-bottom: 6px;
    }
    .metric-label {
      font-size: 0.92rem;
      color: var(--text-muted);
    }

    /* 板块4：分类矩阵与服务接口 */
    .service-api-card .badge-protocol {
      font-size: 0.75rem;
      background: rgba(112, 0, 255, 0.25);
      color: #d8b4fe;
      border: 1px solid var(--border-violet);
      padding: 2px 8px;
      border-radius: 4px;
      margin-bottom: 12px;
      display: inline-block;
    }
    .service-api-card h3 {
      font-size: 1.35rem;
      color: #fff;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .param-list {
      list-style: none;
      margin: 16px 0 24px;
      padding: 0;
      font-size: 0.9rem;
      color: var(--text-muted);
    }
    .param-list li {
      padding: 6px 0;
      border-bottom: 1px dashed rgba(255, 255, 255, 0.08);
      display: flex;
      justify-content: space-between;
    }

    /* 板块5：精选数据清单与架构对开 */
    .arch-flow-diagram {
      background: rgba(5, 8, 17, 0.85);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .flow-step {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      background: rgba(255, 255, 255, 0.03);
      padding: 14px;
      border-radius: var(--radius-sm);
      border-left: 3px solid var(--cyan-neon);
    }
    .step-index {
      font-weight: 800;
      color: var(--cyan-neon);
      font-size: 1.1rem;
    }

    /* 板块6：对比表格（自动化平台 vs 传统人工采集） */
    .compare-table-wrapper {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      overflow-x: auto;
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      margin: 0;
      font-size: 0.95rem;
    }
    .compare-table th,
    .compare-table td {
      padding: 18px 22px;
      text-align: left;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .compare-table th {
      background: rgba(11, 19, 43, 0.9);
      color: #fff;
      font-weight: 700;
      border-bottom: 2px solid var(--cyan-neon);
    }
    .compare-table tr:last-child td {
      border-bottom: none;
    }
    .highlight-cell {
      color: var(--cyan-neon);
      font-weight: 600;
      background: rgba(0, 240, 255, 0.03);
    }

    /* 板块7：战队案例实战沉浸区 */
    .case-card-img {
      border-radius: var(--radius-sm);
      overflow: hidden;
      margin-bottom: 16px;
      border: 1px solid rgba(255, 255, 255, 0.1);
      max-height: 200px;
    }
    .case-card-img img {
      width: 100%;
      height: 200px;
      object-fit: cover;
      transition: var(--transition-smooth);
    }
    .glass-card:hover .case-card-img img {
      transform: scale(1.05);
    }

    /* 板块8：演进历程与里程碑 */
    .timeline-container {
      position: relative;
      padding: 20px 0;
    }
    .timeline-container::before {
      content: '';
      position: absolute;
      top: 0;
      bottom: 0;
      left: 50%;
      width: 2px;
      background: linear-gradient(180deg, var(--cyan-neon), var(--violet-hyper));
      transform: translateX(-50%);
    }
    .timeline-item {
      position: relative;
      margin-bottom: 40px;
      width: 50%;
      padding: 0 30px;
    }
    .timeline-item.left {
      left: 0;
      text-align: right;
    }
    .timeline-item.right {
      left: 50%;
      text-align: left;
    }
    .timeline-dot {
      position: absolute;
      top: 15px;
      width: 16px;
      height: 16px;
      border-radius: 50%;
      background: #00F0FF;
      box-shadow: 0 0 10px #00F0FF;
    }
    .timeline-item.left .timeline-dot {
      right: -8px;
    }
    .timeline-item.right .timeline-dot {
      left: -8px;
    }

    /* 板块9：战队与媒体口碑评价 */
    .testimonial-user {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-top: 20px;
    }
    .avatar-wrap {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      overflow: hidden;
      border: 2px solid var(--cyan-neon);
    }
    .avatar-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .rating-stars {
      color: #ffaa00;
      letter-spacing: 2px;
      font-size: 0.9rem;
      margin-bottom: 8px;
    }

    /* 板块10：资讯与技术洞察 */
    .news-badge {
      display: inline-block;
      font-size: 0.72rem;
      padding: 2px 8px;
      border-radius: 4px;
      background: rgba(255, 255, 255, 0.08);
      color: #cbd5e1;
      margin-bottom: 10px;
    }
    .news-title {
      font-size: 1.15rem;
      color: #fff;
      font-weight: 700;
      margin-bottom: 10px;
      line-height: 1.4;
    }

    /* 板块11：常见问题手风琴 */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-sm);
      margin-bottom: 14px;
      overflow: hidden;
    }
    .faq-question {
      padding: 18px 24px;
      font-size: 1.05rem;
      font-weight: 600;
      color: #fff;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: var(--transition-smooth);
    }
    .faq-question:hover {
      background: rgba(0, 240, 255, 0.04);
      color: var(--cyan-neon);
    }
    .faq-answer {
      padding: 0 24px 20px;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      margin-top: 6px;
      padding-top: 14px;
    }

    /* 板块12：转化与咨询表单（唯一终极行动收口） */
    .contact-form-box {
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.95), rgba(20, 15, 45, 0.95));
      border: 1px solid var(--cyan-neon);
      box-shadow: 0 0 35px rgba(0, 240, 255, 0.15);
      border-radius: var(--radius-lg);
      padding: 40px;
      max-width: 880px;
      margin: 0 auto;
    }
    .form-group {
      margin-bottom: 20px;
    }
    .form-label {
      display: block;
      color: #fff;
      font-size: 0.9rem;
      margin-bottom: 8px;
      font-weight: 600;
    }
    .form-control {
      width: 100%;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-sm);
      padding: 12px 16px;
      color: #fff;
      outline: none;
      transition: var(--transition-smooth);
    }
    .form-control:focus {
      border-color: var(--cyan-neon);
      background: rgba(0, 240, 255, 0.04);
      box-shadow: 0 0 10px var(--cyan-glow);
    }
    select.form-control {
      appearance: none;
      background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%2300F0FF'%3e%3cpath d='M7 10l5 5 5-5z'/%3e%3c/svg%3e");
      background-repeat: no-repeat;
      background-position: right 14px center;
      background-size: 16px;
    }
    select.form-control option {
      background: #0B132B;
      color: #fff;
    }

    /* 页脚 Footer */
    .site-footer {
      background: var(--bg-darker);
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 70px 20px 30px;
      color: var(--text-dim);
      font-size: 0.9rem;
    }
    .footer-col h4 {
      color: #fff;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 20px;
      position: relative;
      padding-bottom: 10px;
    }
    .footer-col h4::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 24px;
      height: 2px;
      background: var(--cyan-neon);
    }
    .footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links li a {
      color: var(--text-muted);
    }
    .footer-links li a:hover {
      color: var(--cyan-neon);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      margin-top: 50px;
      padding-top: 24px;
      text-align: center;
      font-size: 0.85rem;
    }

    /* 移动端菜单抽屉 */
    .mobile-menu-toggle {
      display: none;
      background: transparent;
      border: 1px solid var(--border-subtle);
      color: #fff;
      font-size: 1.25rem;
      padding: 6px 12px;
      border-radius: var(--radius-sm);
      cursor: pointer;
    }

    /* 动画与断点自适应 */
    @keyframes pulse {
      0%, 100% { opacity: 1; }
      50% { opacity: 0.6; }
    }

    @media (max-width: 1024px) {
      .hero-cut h1 { font-size: 2.75rem; }
    }
    @media (max-width: 768px) {
      .mobile-menu-toggle { display: block; }
      .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(7, 11, 25, 0.98);
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-subtle);
        gap: 16px;
      }
      .nav-menu.active { display: flex; }
      .hero-cut {
        padding: 80px 20px 100px;
        clip-path: polygon(0 0, 100% 0, 100% 96%, 0 100%);
      }
      .hero-cut h1 { font-size: 2.15rem; }
      .timeline-container::before { left: 20px; }
      .timeline-item { width: 100%; padding-left: 50px; padding-right: 0; text-align: left !important; }
      .timeline-item.right { left: 0; }
      .timeline-item.left .timeline-dot,
      .timeline-item.right .timeline-dot { left: 12px; }
      .contact-form-box { padding: 24px; }
      .site-section { padding: 60px 16px; }
    }
    @media (max-width: 520px) {
      .top-promo-bar .promo-inner { justify-content: center; text-align: center; }
      .hero-actions { flex-direction: column; align-items: stretch; }
      .search-inputs { flex-direction: column; }
      .search-panel { padding: 18px; }
    }