/* roulang page: index */
:root {
      --bg-main: #0a0d14;
      --bg-card: #121722;
      --bg-card-hover: #182030;
      --bg-darker: #05070a;
      --primary: #00ff88;
      --primary-cyan: #00e5ff;
      --accent-purple: #7b2cbf;
      --accent-red: #ff0055;
      --text-main: #f0f4fc;
      --text-muted: #94a3b8;
      --text-dark: #475569;
      --border-color: rgba(255, 255, 255, 0.08);
      --border-highlight: rgba(0, 255, 136, 0.4);
      --glow-shadow: 0 0 24px rgba(0, 255, 136, 0.16);
      --radius-sm: 4px;
      --radius-md: 6px;
      --radius-lg: 12px;
      --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      background-color: var(--bg-main);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.6;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

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

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

    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部通栏信息 */
    .top-bar {
      background-color: var(--bg-darker);
      border-bottom: 1px solid var(--border-color);
      font-size: 13px;
      color: var(--text-muted);
      height: 36px;
      display: flex;
      align-items: center;
    }

    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 100%;
    }

    .top-info-left span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .top-status-indicator {
      width: 8px;
      height: 8px;
      background: var(--primary);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--primary);
      display: inline-block;
    }

    .top-info-right {
      display: flex;
      gap: 20px;
    }

    /* 主导航栏 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 999;
      background: rgba(10, 13, 20, 0.85);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-color);
    }

    .nav-wrapper {
      height: 72px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 20px;
      font-weight: 700;
      letter-spacing: 0.5px;
      color: var(--text-main);
    }

    .brand-icon-geom {
      width: 34px;
      height: 34px;
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-cyan) 100%);
      clip-path: polygon(25% 0%, 100% 0%, 75% 100%, 0% 100%);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      color: var(--bg-darker);
      font-size: 14px;
    }

    .nav-links {
      display: flex;
      list-style: none;
      gap: 32px;
    }

    .nav-item a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-muted);
      position: relative;
      padding: 6px 0;
    }

    .nav-item a:hover,
    .nav-item.active a {
      color: var(--primary);
    }

    .nav-item.active a::after {
      content: "";
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
      box-shadow: 0 0 8px var(--primary);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    /* 通用按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 14px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      clip-path: polygon(6px 0%, 100% 0%, calc(100% - 6px) 100%, 0% 100%);
      white-space: nowrap;
    }

    .btn-primary {
      background: linear-gradient(90deg, var(--primary) 0%, #00d977 100%);
      color: #06110a;
      box-shadow: 0 0 16px rgba(0, 255, 136, 0.35);
    }

    .btn-primary:hover {
      box-shadow: 0 0 24px rgba(0, 255, 136, 0.6);
      transform: translateY(-1px);
    }

    .btn-outline {
      background: transparent;
      color: var(--text-main);
      border-color: rgba(255, 255, 255, 0.2);
    }

    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: rgba(0, 255, 136, 0.05);
    }

    /* 通用板块样式 */
    .section-wrap {
      padding: 84px 0;
      position: relative;
    }

    .section-alt {
      background-color: var(--bg-card);
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

    .section-darkest {
      background-color: var(--bg-darker);
    }

    .section-header {
      margin-bottom: 50px;
    }

    .section-badge {
      display: inline-block;
      font-size: 12px;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      color: var(--primary);
      background: rgba(0, 255, 136, 0.08);
      padding: 4px 12px;
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
      border: 1px solid rgba(0, 255, 136, 0.25);
    }

    .section-title {
      font-size: 32px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 14px;
      line-height: 1.3;
    }

    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      max-width: 820px;
      line-height: 1.7;
    }

    /* 板块 1: Bento 首屏 */
    .hero-section {
      padding: 50px 0 80px 0;
      background: radial-gradient(circle at 80% 20%, rgba(0, 229, 255, 0.1) 0%, transparent 60%),
                  radial-gradient(circle at 10% 80%, rgba(123, 44, 191, 0.12) 0%, transparent 50%),
                  var(--bg-main);
      position: relative;
    }

    .bento-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      grid-template-rows: auto auto;
      gap: 20px;
      margin-top: 30px;
    }

    .bento-main {
      grid-column: 1 / 2;
      grid-row: 1 / 3;
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 44px;
      position: relative;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      min-height: 480px;
    }

    .bento-main::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: linear-gradient(90deg, var(--primary), var(--primary-cyan));
    }

    .hero-h1 {
      font-size: 44px;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 20px;
      color: #fff;
    }

    .hero-h1 span {
      background: linear-gradient(90deg, var(--primary), var(--primary-cyan));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-p {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 32px;
      max-width: 640px;
    }

    .hero-cta-group {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }

    .bento-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      position: relative;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .bento-card:hover {
      border-color: var(--border-highlight);
      box-shadow: var(--glow-shadow);
      transform: translateY(-2px);
    }

    .bento-tag {
      font-size: 12px;
      color: var(--primary-cyan);
      font-weight: 600;
      margin-bottom: 8px;
    }

    .bento-kpi {
      font-size: 38px;
      font-weight: 800;
      color: #fff;
      font-family: monospace;
      margin-bottom: 8px;
      line-height: 1.1;
    }

    .bento-kpi span {
      font-size: 20px;
      color: var(--primary);
    }

    .bento-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    .bento-cta-bar {
      margin-top: 24px;
      background: var(--bg-darker);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 16px 28px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }

    .cta-bar-info {
      display: flex;
      align-items: center;
      gap: 14px;
      font-size: 14px;
      color: var(--text-main);
    }

    .cta-bar-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--primary);
      box-shadow: 0 0 10px var(--primary);
    }

    /* 板块 2: 底层架构与协议参数 */
    .arch-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .arch-preview {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: 0 16px 32px rgba(0, 0, 0, 0.4);
      background: var(--bg-card);
    }

    .arch-params {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      margin-top: 24px;
    }

    .param-box {
      background: var(--bg-darker);
      padding: 16px;
      border-radius: var(--radius-sm);
      border-left: 3px solid var(--primary-cyan);
    }

    .param-title {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 4px;
    }

    .param-val {
      font-size: 17px;
      font-weight: 700;
      color: #fff;
    }

    /* 板块 3: 核心六大功能矩阵 */
    .feature-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .feature-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      transition: var(--transition);
      position: relative;
    }

    .feature-card:hover {
      border-color: var(--border-highlight);
      box-shadow: var(--glow-shadow);
      background: var(--bg-card-hover);
    }

    .feature-num {
      font-size: 14px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 12px;
      display: inline-block;
      letter-spacing: 1px;
    }

    .feature-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 12px;
      color: #fff;
    }

    .feature-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 板块 4: 产品套件与工作台形态 */
    .suite-cards {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .suite-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }

    .suite-img-wrap {
      height: 180px;
      overflow: hidden;
      position: relative;
    }

    .suite-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .suite-item:hover .suite-img-wrap img {
      transform: scale(1.05);
    }

    .suite-body {
      padding: 26px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .suite-name {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 10px;
      color: #fff;
    }

    .suite-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
    }

    .suite-checklist {
      list-style: none;
      margin-bottom: 22px;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .suite-checklist li {
      font-size: 13px;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .suite-checklist li::before {
      content: "✔";
      color: var(--primary);
      font-size: 11px;
    }

    /* 板块 5: 极深色安全架构与控制底座 */
    .sec-console-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 36px;
    }

    .console-module {
      background: #090c12;
      border: 1px solid rgba(255, 255, 255, 0.05);
      padding: 26px;
      border-radius: var(--radius-md);
      border-left: 3px solid var(--accent-purple);
    }

    .console-module h4 {
      font-size: 16px;
      color: #fff;
      margin-bottom: 10px;
    }

    .console-module p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块 6: 案例与实战推演 */
    .case-container {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 40px;
      align-items: center;
    }

    .case-banner {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
    }

    .case-content h3 {
      font-size: 26px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
    }

    .case-content p {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 22px;
    }

    .case-tags {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
      margin-bottom: 24px;
    }

    .tag-badge {
      background: rgba(255, 255, 255, 0.06);
      color: var(--text-main);
      padding: 4px 12px;
      font-size: 12px;
      border-radius: var(--radius-sm);
    }

    /* 板块 7: 关键指标与运营量化 */
    .stats-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }

    .stat-cell {
      padding: 30px 16px;
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
    }

    .stat-number {
      font-size: 44px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 8px;
      font-family: monospace;
    }

    .stat-label {
      font-size: 14px;
      color: var(--text-muted);
    }

    /* 板块 8: 评审与主办方评价 */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-quote {
      font-size: 15px;
      color: var(--text-main);
      line-height: 1.7;
      margin-bottom: 20px;
      position: relative;
    }

    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 14px;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
    }

    .reviewer-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--border-color);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
    }

    .reviewer-name {
      font-size: 15px;
      font-weight: 700;
      color: #fff;
    }

    .reviewer-role {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 9: 动态与赛事实践洞察 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .news-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }

    .news-img {
      height: 170px;
      overflow: hidden;
    }

    .news-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .news-body {
      padding: 22px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .news-meta {
      font-size: 12px;
      color: var(--text-dark);
      margin-bottom: 8px;
    }

    .news-title {
      font-size: 17px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 10px;
      line-height: 1.4;
    }

    .news-text {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }

    /* 板块 10: 常见技术答疑 (手风琴) */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-item.active {
      border-color: var(--border-highlight);
      background: var(--bg-card-hover);
    }

    .faq-toggle {
      width: 100%;
      padding: 20px 24px;
      background: none;
      border: none;
      text-align: left;
      color: #fff;
      font-size: 16px;
      font-weight: 600;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .faq-icon {
      font-size: 18px;
      transition: transform 0.3s ease;
      color: var(--primary);
    }

    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }

    .faq-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s cubic-bezier(0, 1, 0, 1);
      padding: 0 24px;
    }

    .faq-item.active .faq-content {
      max-height: 300px;
      padding-bottom: 20px;
    }

    .faq-content p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块 11: 保障条款与部署承诺 */
    .guarantee-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .guarantee-box {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 24px;
      border-radius: var(--radius-md);
      text-align: left;
      border-top: 3px solid var(--primary);
    }

    .guarantee-title {
      font-size: 16px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 8px;
    }

    .guarantee-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 板块 12: 预约演示与线索收口 */
    .cta-stage {
      background: linear-gradient(135deg, rgba(18, 23, 34, 0.95), rgba(10, 13, 20, 0.98)),
                  radial-gradient(circle at 50% 50%, rgba(0, 255, 136, 0.1), transparent 60%);
      border: 1px solid var(--border-highlight);
      border-radius: var(--radius-lg);
      padding: 60px 48px;
      box-shadow: 0 0 40px rgba(0, 255, 136, 0.12);
    }

    .cta-inner {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }

    .cta-form {
      background: var(--bg-darker);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .form-group label {
      font-size: 13px;
      color: var(--text-muted);
    }

    .form-input, .form-select {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 12px 14px;
      border-radius: var(--radius-sm);
      color: #fff;
      font-size: 14px;
      outline: none;
      transition: var(--transition);
    }

    .form-input:focus, .form-select:focus {
      border-color: var(--primary);
      box-shadow: 0 0 10px rgba(0, 255, 136, 0.2);
    }

    /* 页脚 */
    .site-footer {
      background-color: var(--bg-darker);
      border-top: 1px solid var(--border-color);
      padding: 64px 0 32px 0;
      color: var(--text-muted);
      font-size: 14px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 48px;
    }

    .footer-col h4 {
      color: #fff;
      font-size: 15px;
      margin-bottom: 20px;
    }

    .footer-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-col a:hover {
      color: var(--primary);
    }

    .footer-contact-item {
      margin-bottom: 8px;
      line-height: 1.6;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
      color: var(--text-dark);
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .bento-grid {
        grid-template-columns: 1fr;
      }
      .bento-main {
        grid-column: 1 / 2;
        grid-row: auto;
      }
      .feature-grid,
      .suite-cards,
      .news-grid,
      .sec-console-grid,
      .review-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .stats-bar,
      .guarantee-bar {
        grid-template-columns: repeat(2, 1fr);
      }
      .arch-grid,
      .case-container,
      .cta-inner {
        grid-template-columns: 1fr;
        gap: 32px;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .nav-links {
        display: none;
      }
      .hero-h1 {
        font-size: 32px;
      }
      .section-title {
        font-size: 26px;
      }
      .feature-grid,
      .suite-cards,
      .news-grid,
      .sec-console-grid,
      .review-grid,
      .stats-bar,
      .guarantee-bar,
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .cta-stage {
        padding: 32px 20px;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }