/* roulang page: index */
:root {
      --bg-dark: #0A0F1D;
      --bg-surface: #0F172A;
      --bg-card: rgba(15, 23, 42, 0.72);
      --bg-card-hover: rgba(30, 41, 59, 0.85);
      --primary-blue: #0066FF;
      --primary-green: #00E599;
      --accent-purple: #8B5CF6;
      --text-main: #F8FAFC;
      --text-muted: #94A3B8;
      --text-sub: #64748B;
      --border-line: rgba(255, 255, 255, 0.08);
      --border-focus: rgba(0, 229, 153, 0.4);
      --glow-blue: 0 0 25px rgba(0, 102, 255, 0.35);
      --glow-green: 0 0 22px rgba(0, 229, 153, 0.38);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
    }

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

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

    a {
      color: var(--primary-green);
      text-decoration: none;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    a:hover {
      color: #38f8ba;
    }

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

    .container-wide {
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 顶部微型信息栏（带定位入口） */
    .top-bar-mini {
      background: rgba(10, 15, 29, 0.95);
      border-bottom: 1px solid var(--border-line);
      font-size: 13px;
      color: var(--text-muted);
      padding: 8px 0;
      position: relative;
      z-index: 1001;
    }
    .top-bar-mini .flex-wrap {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .location-trigger {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      cursor: pointer;
      color: var(--text-main);
      background: rgba(255, 255, 255, 0.05);
      padding: 3px 10px;
      border-radius: 4px;
      border: 1px solid var(--border-line);
    }
    .location-trigger:hover {
      border-color: var(--primary-green);
      color: var(--primary-green);
    }

    /* 主导航 */
    .site-header {
      background: rgba(15, 23, 42, 0.85);
      backdrop-filter: blur(20px);
      border-bottom: 1px solid var(--border-line);
      position: sticky;
      top: 0;
      z-index: 1000;
      box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
    }
    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 16px 0;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      color: var(--text-main);
      font-weight: 800;
      font-size: 20px;
      letter-spacing: 0.5px;
    }
    .brand-logo-icon {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--primary-blue), var(--primary-green));
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 18px;
      box-shadow: var(--glow-green);
    }
    .nav-menu {
      display: flex;
      list-style: none;
      gap: 24px;
      align-items: center;
      margin: 0;
    }
    .nav-link {
      color: var(--text-muted);
      font-size: 14px;
      font-weight: 500;
      padding: 6px 0;
      position: relative;
    }
    .nav-link:hover, .nav-link.active {
      color: #fff;
    }
    .nav-link.active::after {
      content: "";
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary-green);
      box-shadow: var(--glow-green);
    }

    /* 按钮规范 */
    .btn-glow-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: linear-gradient(135deg, var(--primary-blue), var(--primary-green));
      color: #fff;
      padding: 12px 28px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 14px;
      box-shadow: var(--glow-green);
      border: none;
      cursor: pointer;
      transition: transform 0.25s ease, box-shadow 0.25s ease;
      white-space: nowrap;
    }
    .btn-glow-primary:hover {
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 0 32px rgba(0, 229, 153, 0.6);
    }
    .btn-glow-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-line);
      color: var(--text-main);
      padding: 12px 26px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 14px;
      cursor: pointer;
      transition: all 0.3s ease;
    }
    .btn-glow-secondary:hover {
      background: rgba(255, 255, 255, 0.12);
      border-color: var(--text-main);
      color: #fff;
    }

    /* 通用Section布局 */
    section {
      padding: 100px 0;
      position: relative;
    }
    .section-alt {
      background-color: var(--bg-surface);
      border-top: 1px solid var(--border-line);
      border-bottom: 1px solid var(--border-line);
    }
    .section-header {
      margin-bottom: 50px;
    }
    .section-header h2 {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }
    .section-header p {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.8;
      max-width: 820px;
    }
    .badge-sub {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(0, 229, 153, 0.12);
      border: 1px solid rgba(0, 229, 153, 0.3);
      color: var(--primary-green);
      font-size: 12px;
      font-weight: 600;
      padding: 4px 12px;
      border-radius: 20px;
      margin-bottom: 16px;
      text-transform: uppercase;
    }

    /* 玻璃拟态卡片 */
    .glass-card {
      background: var(--bg-card);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid var(--border-line);
      border-radius: var(--radius-md);
      padding: 32px;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      position: relative;
      height: 100%;
    }
    .glass-card:hover {
      background: var(--bg-card-hover);
      border-color: rgba(255, 255, 255, 0.18);
      transform: translateY(-4px);
      box-shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
    }

    /* 模块1: 首屏众筹预热 / 指标看板 Hero */
    .hero-crowd {
      padding: 90px 0 110px 0;
      background: radial-gradient(circle at 80% 20%, rgba(0, 102, 255, 0.15) 0%, transparent 60%),
                  radial-gradient(circle at 10% 80%, rgba(0, 229, 153, 0.1) 0%, transparent 50%),
                  url('/assets/images/c3118c133371bda2.webp') center/cover no-repeat;
      position: relative;
    }
    .hero-crowd::before {
      content: "";
      position: absolute;
      inset: 0;
      background: rgba(10, 15, 29, 0.88);
      backdrop-filter: blur(6px);
    }
    .hero-content {
      position: relative;
      z-index: 2;
    }
    .hero-h1 {
      font-size: 44px;
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 24px;
      background: linear-gradient(180deg, #FFFFFF 0%, #CBD5E1 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 17px;
      color: var(--text-muted);
      line-height: 1.85;
      margin-bottom: 36px;
    }
    /* 目标进度环与档位卡片 */
    .crowd-panel {
      background: rgba(15, 23, 42, 0.85);
      border: 1px solid var(--border-line);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: 0 20px 40px rgba(0,0,0,0.5);
    }
    .progress-bar-bg {
      background: rgba(255, 255, 255, 0.1);
      border-radius: 20px;
      height: 10px;
      margin: 16px 0;
      overflow: hidden;
    }
    .progress-bar-fill {
      background: linear-gradient(90deg, var(--primary-blue), var(--primary-green));
      height: 100%;
      width: 86%;
      border-radius: 20px;
      box-shadow: var(--glow-green);
    }
    .tier-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-top: 20px;
    }
    .tier-pill {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--border-line);
      padding: 12px;
      border-radius: var(--radius-sm);
      text-align: center;
    }
    .tier-pill.featured {
      border-color: var(--primary-green);
      background: rgba(0, 229, 153, 0.06);
    }

    /* 模块2: 能力概览与底座 */
    .spec-table-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .spec-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      padding: 16px;
      border-radius: var(--radius-sm);
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid var(--border-line);
    }
    .spec-icon {
      font-size: 20px;
      color: var(--primary-green);
      margin-top: 3px;
    }

    /* 模块3: 行业场景看板 */
    .scenario-card {
      position: relative;
      overflow: hidden;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-line);
      height: 340px;
    }
    .scenario-card img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.6s ease;
    }
    .scenario-card:hover img {
      transform: scale(1.08);
    }
    .scenario-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(10, 15, 29, 0.1) 0%, rgba(10, 15, 29, 0.95) 80%);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
    }

    /* 模块4: 方案矩阵 (玻璃拟态) */
    .matrix-icon-box {
      width: 52px;
      height: 52px;
      background: rgba(0, 102, 255, 0.12);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary-blue);
      font-size: 22px;
      margin-bottom: 20px;
      border: 1px solid rgba(0, 102, 255, 0.3);
    }

    /* 模块5: 热门垂直产品矩阵 */
    .product-box {
      border: 1px solid var(--border-line);
      border-radius: var(--radius-md);
      background: var(--bg-card);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .product-box.highlight {
      border-color: var(--primary-green);
      box-shadow: 0 0 30px rgba(0, 229, 153, 0.15);
    }
    .product-header {
      padding: 24px;
      border-bottom: 1px solid var(--border-line);
    }
    .product-body {
      padding: 24px;
      flex-grow: 1;
    }
    .product-footer {
      padding: 20px 24px;
      border-top: 1px solid var(--border-line);
      background: rgba(255, 255, 255, 0.01);
    }
    .feature-tag-list {
      display: flex;
      flex-direction: column;
      gap: 10px;
      margin-top: 16px;
    }
    .feature-tag-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 模块6: 结果对比区 */
    .compare-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
    }
    .compare-card-old {
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid rgba(255, 255, 255, 0.05);
      border-radius: var(--radius-md);
      padding: 36px;
      opacity: 0.8;
    }
    .compare-card-new {
      background: rgba(0, 229, 153, 0.03);
      border: 1px solid var(--primary-green);
      border-radius: var(--radius-md);
      padding: 36px;
      box-shadow: var(--glow-green);
      position: relative;
    }
    .compare-row {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      margin-bottom: 18px;
      padding-bottom: 16px;
      border-bottom: 1px dashed rgba(255, 255, 255, 0.08);
    }
    .compare-row:last-child {
      border-bottom: none;
      margin-bottom: 0;
      padding-bottom: 0;
    }

    /* 模块7: 资质背书墙 */
    .cert-item {
      text-align: center;
      padding: 28px 16px;
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid var(--border-line);
      border-radius: var(--radius-sm);
    }
    .cert-icon {
      font-size: 32px;
      color: var(--accent-purple);
      margin-bottom: 14px;
    }

    /* 模块8: 交付流程与演进 */
    .timeline-stream {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .timeline-node {
      background: var(--bg-card);
      border: 1px solid var(--border-line);
      border-radius: var(--radius-sm);
      padding: 24px;
      position: relative;
    }
    .timeline-node::before {
      content: "";
      position: absolute;
      top: -6px;
      left: 24px;
      width: 12px;
      height: 12px;
      background: var(--primary-blue);
      border-radius: 50%;
      box-shadow: var(--glow-blue);
    }
    .node-num {
      font-size: 12px;
      font-weight: 700;
      color: var(--primary-green);
      letter-spacing: 1px;
      margin-bottom: 8px;
    }

    /* 模块9: 成功案例深色展示 */
    .case-container {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 40px;
      align-items: center;
      background: var(--bg-card);
      border: 1px solid var(--border-line);
      border-radius: var(--radius-lg);
      padding: 40px;
      overflow: hidden;
    }
    .stat-badge-group {
      display: flex;
      gap: 24px;
      margin-top: 24px;
    }
    .stat-badge {
      background: rgba(0, 102, 255, 0.08);
      border: 1px solid rgba(0, 102, 255, 0.3);
      padding: 14px 20px;
      border-radius: var(--radius-sm);
    }

    /* 模块10: 关键数据统计条 */
    .counter-bar-wrapper {
      background: linear-gradient(90deg, rgba(15, 23, 42, 0.95), rgba(10, 15, 29, 0.95));
      border: 1px solid var(--border-line);
      border-radius: var(--radius-md);
      padding: 40px 20px;
    }
    .stat-item-box {
      text-align: center;
      border-right: 1px solid var(--border-line);
    }
    .stat-item-box:last-child {
      border-right: none;
    }
    .stat-value {
      font-size: 40px;
      font-weight: 900;
      color: #fff;
      margin-bottom: 6px;
      font-feature-settings: "tnum";
    }
    .stat-label {
      color: var(--text-muted);
      font-size: 14px;
    }

    /* 模块11: 资讯与行业洞察 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .news-card {
      background: var(--bg-card);
      border: 1px solid var(--border-line);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .news-img-box {
      height: 180px;
      overflow: hidden;
    }
    .news-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .news-card:hover .news-img-box img {
      transform: scale(1.05);
    }
    .news-body {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    /* 模块12: FAQ 手风琴 */
    .faq-item-custom {
      background: var(--bg-card);
      border: 1px solid var(--border-line);
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
      overflow: hidden;
    }
    .faq-title-custom {
      padding: 20px 24px;
      font-weight: 600;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      user-select: none;
    }
    .faq-title-custom:hover {
      color: var(--primary-green);
    }
    .faq-content-custom {
      padding: 0 24px 20px 24px;
      color: var(--text-muted);
      font-size: 14px;
      line-height: 1.8;
      display: none;
    }
    .faq-content-custom.active {
      display: block;
    }

    /* 模块13: 转化表单与底部 CTA */
    .lead-form-box {
      background: rgba(15, 23, 42, 0.95);
      border: 1px solid rgba(0, 229, 153, 0.3);
      box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
      border-radius: var(--radius-lg);
      padding: 40px;
    }
    .form-control-custom {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-line);
      border-radius: var(--radius-sm);
      color: #fff;
      padding: 12px 16px;
      font-size: 14px;
      width: 100%;
      margin-bottom: 16px;
      transition: all 0.3s;
    }
    .form-control-custom:focus {
      outline: none;
      border-color: var(--primary-green);
      background: rgba(255, 255, 255, 0.08);
      box-shadow: 0 0 12px rgba(0, 229, 153, 0.2);
    }
    .form-control-custom::placeholder {
      color: var(--text-sub);
    }

    /* 统一页脚 */
    .site-footer {
      background: #060913;
      border-top: 1px solid var(--border-line);
      padding: 70px 0 30px 0;
      color: var(--text-muted);
      font-size: 14px;
    }
    .footer-col h4 {
      color: #fff;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 20px;
      position: relative;
    }
    .footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a {
      color: var(--text-muted);
    }
    .footer-links a:hover {
      color: var(--primary-green);
      padding-left: 4px;
    }
    .copyright-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      margin-top: 50px;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
      color: var(--text-sub);
    }

    /* 移动端与自适应断点 */
    @media screen and (max-width: 1024px) {
      .timeline-stream {
        grid-template-columns: repeat(2, 1fr);
      }
      .compare-wrapper {
        grid-template-columns: 1fr;
      }
      .case-container {
        grid-template-columns: 1fr;
      }
      .hero-h1 {
        font-size: 36px;
      }
    }
    @media screen and (max-width: 768px) {
      section {
        padding: 60px 0;
      }
      .hero-crowd {
        padding: 60px 0 80px 0;
      }
      .nav-menu {
        display: none;
      }
      .tier-grid {
        grid-template-columns: 1fr;
      }
      .timeline-stream {
        grid-template-columns: 1fr;
      }
      .news-grid {
        grid-template-columns: 1fr;
      }
      .copyright-bar {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
      .counter-bar-wrapper .grid-x > div {
        margin-bottom: 24px;
        border-right: none;
      }
    }