/* roulang page: index */
:root {
      --bg-main: #0A0F1D;
      --bg-card: rgba(17, 24, 39, 0.68);
      --bg-alt: #111827;
      --bg-deep: #0E1726;
      --primary: #0066FF;
      --primary-neon: #00F2FE;
      --text-main: #FFFFFF;
      --text-muted: #94A3B8;
      --text-sub: #64748B;
      --border-light: rgba(255, 255, 255, 0.08);
      --border-glow: rgba(0, 102, 255, 0.35);
      --glow-shadow: 0 0 16px rgba(0, 102, 255, 0.35);
      --glow-shadow-hover: 0 0 25px rgba(0, 242, 254, 0.6);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-full: 9999px;
    }

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

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

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }
    a:hover {
      color: var(--primary-neon);
    }

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

    /* 顶部微型信息栏 */
    .top-status-bar {
      background: #060913;
      border-bottom: 1px solid var(--border-light);
      padding: 6px 0;
      font-size: 12px;
      color: var(--text-sub);
    }
    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: #10B981;
    }
    .status-dot {
      width: 6px;
      height: 6px;
      background: #10B981;
      border-radius: 50%;
      box-shadow: 0 0 8px #10B981;
    }

    /* 主导航栏 (SaaS 命令栏) */
    .header-nav {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(10, 15, 29, 0.85);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border-light);
    }
    .nav-wrap {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .nav-brand {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 700;
      font-size: 19px;
      color: #FFFFFF;
      letter-spacing: -0.2px;
    }
    .nav-logo-icon {
      width: 32px;
      height: 32px;
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-neon) 100%);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 0 14px rgba(0, 102, 255, 0.45);
    }
    .nav-menu {
      display: flex;
      gap: 28px;
      list-style: none;
      margin: 0;
    }
    .nav-menu a {
      font-size: 14px;
      color: var(--text-muted);
      font-weight: 500;
      position: relative;
    }
    .nav-menu a:hover, .nav-menu a.active {
      color: #FFFFFF;
    }
    .nav-menu a.active::after {
      content: '';
      position: absolute;
      bottom: -6px;
      left: 0;
      right: 0;
      height: 2px;
      background: var(--primary-neon);
      border-radius: 2px;
      box-shadow: 0 0 6px var(--primary-neon);
    }
    .nav-command {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .cmd-box {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      padding: 6px 14px;
      font-size: 12px;
      color: var(--text-sub);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .cmd-key {
      background: rgba(255, 255, 255, 0.1);
      padding: 2px 6px;
      border-radius: 4px;
      font-size: 11px;
      color: var(--text-muted);
    }

    /* 按钮规范 */
    .btn-glow {
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-neon) 100%);
      color: #FFFFFF !important;
      padding: 10px 24px;
      font-weight: 600;
      font-size: 14px;
      border-radius: var(--radius-sm);
      box-shadow: var(--glow-shadow);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border: none;
      cursor: pointer;
      transition: all 0.3s ease;
    }
    .btn-glow:hover {
      box-shadow: var(--glow-shadow-hover);
      transform: translateY(-2px);
      color: #FFFFFF;
    }
    .btn-secondary {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-light);
      color: var(--text-main);
      padding: 10px 22px;
      font-size: 14px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      transition: all 0.3s ease;
    }
    .btn-secondary:hover {
      border-color: var(--primary-neon);
      background: rgba(0, 102, 255, 0.12);
      color: #FFFFFF;
    }

    /* 玻璃卡片 */
    .glass-card {
      background: var(--bg-card);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid var(--border-light);
      border-top: 1px solid rgba(255, 255, 255, 0.14);
      border-radius: var(--radius-md);
      transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
    }
    .glass-card:hover {
      border-color: rgba(0, 102, 255, 0.4);
      transform: translateY(-4px);
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
    }

    /* 通用板块样式与间距 */
    .app-section {
      padding: 90px 0;
      position: relative;
    }
    .section-alt {
      background-color: var(--bg-alt);
      border-top: 1px solid var(--border-light);
      border-bottom: 1px solid var(--border-light);
    }
    .section-deep {
      background-color: var(--bg-deep);
    }
    .section-header {
      margin-bottom: 48px;
    }
    .section-badge {
      display: inline-block;
      padding: 4px 12px;
      font-size: 12px;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.8px;
      background: rgba(0, 102, 255, 0.15);
      color: var(--primary-neon);
      border: 1px solid rgba(0, 242, 254, 0.25);
      border-radius: var(--radius-full);
      margin-bottom: 14px;
    }
    .section-title {
      font-size: 32px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }
    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      max-width: 680px;
      line-height: 1.7;
    }
    .header-center {
      text-align: center;
    }
    .header-center .section-desc {
      margin: 0 auto;
    }

    /* 1. 首屏轮播Banner (Hero Carousel) */
    .hero-carousel-section {
      padding: 50px 0 80px 0;
      background: radial-gradient(circle at 80% 20%, rgba(0, 102, 255, 0.18) 0%, transparent 60%),
                  radial-gradient(circle at 10% 80%, rgba(0, 242, 254, 0.08) 0%, transparent 50%),
                  var(--bg-main);
      position: relative;
      overflow: hidden;
    }
    .hero-slide {
      display: none;
      align-items: center;
    }
    .hero-slide.active {
      display: flex;
    }
    .hero-h1 {
      font-size: 44px;
      font-weight: 800;
      line-height: 1.2;
      margin-bottom: 22px;
      color: #FFFFFF;
      letter-spacing: -1px;
    }
    .hero-h1 span {
      background: linear-gradient(90deg, #FFFFFF 30%, var(--primary-neon) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-lead {
      font-size: 16px;
      color: var(--text-muted);
      margin-bottom: 34px;
      line-height: 1.8;
    }
    .hero-visual {
      position: relative;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-light);
      box-shadow: 0 20px 40px rgba(0,0,0,0.5);
    }
    .hero-visual img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }
    .hero-hud-float {
      position: absolute;
      bottom: 20px;
      left: 20px;
      right: 20px;
      background: rgba(10, 15, 29, 0.85);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(0, 242, 254, 0.3);
      border-radius: var(--radius-sm);
      padding: 14px 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .hud-label {
      font-size: 12px;
      color: var(--text-sub);
    }
    .hud-val {
      font-size: 14px;
      font-weight: 600;
      color: var(--primary-neon);
    }
    .carousel-nav-dots {
      display: flex;
      gap: 10px;
      margin-top: 30px;
    }
    .carousel-dot {
      width: 32px;
      height: 4px;
      background: rgba(255, 255, 255, 0.15);
      border-radius: 2px;
      cursor: pointer;
      transition: all 0.3s;
    }
    .carousel-dot.active {
      background: var(--primary-neon);
      box-shadow: 0 0 10px var(--primary-neon);
    }

    /* 2. 指标看板区 */
    .metrics-section {
      background: #070B16;
      border-top: 1px solid var(--border-light);
      border-bottom: 1px solid var(--border-light);
      padding: 45px 0;
    }
    .metric-item {
      padding: 16px 20px;
      border-left: 2px solid rgba(0, 102, 255, 0.3);
    }
    .metric-value {
      font-size: 34px;
      font-weight: 800;
      color: #FFFFFF;
      font-family: monospace;
      margin-bottom: 4px;
    }
    .metric-label {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 8px;
    }
    .mini-progress {
      height: 4px;
      background: rgba(255, 255, 255, 0.08);
      border-radius: 2px;
      overflow: hidden;
    }
    .mini-progress-bar {
      height: 100%;
      background: linear-gradient(90deg, var(--primary) 0%, var(--primary-neon) 100%);
    }

    /* 3. 架构介绍区 */
    .arch-codeblock {
      background: #050811;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px;
      font-family: Consolas, Monaco, monospace;
      font-size: 13px;
      color: #38BDF8;
      overflow-x: auto;
    }
    .arch-param-list {
      list-style: none;
      margin-top: 20px;
    }
    .arch-param-list li {
      padding: 12px 0;
      border-bottom: 1px solid var(--border-light);
      display: flex;
      justify-content: space-between;
      font-size: 14px;
    }
    .arch-param-list li span:first-child {
      color: var(--text-muted);
    }
    .arch-param-list li span:last-child {
      color: #FFFFFF;
      font-weight: 600;
    }

    /* 4. 能力矩阵区 */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .matrix-card {
      padding: 30px;
    }
    .matrix-icon {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: rgba(0, 102, 255, 0.12);
      border: 1px solid rgba(0, 102, 255, 0.25);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      color: var(--primary-neon);
      font-weight: 700;
      font-size: 18px;
    }
    .matrix-title {
      font-size: 18px;
      font-weight: 600;
      color: #FFFFFF;
      margin-bottom: 10px;
    }
    .matrix-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 5. 原型展示区 */
    .archetype-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .archetype-card {
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .archetype-img-box {
      height: 220px;
      position: relative;
      overflow: hidden;
    }
    .archetype-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .archetype-card:hover .archetype-img-box img {
      transform: scale(1.05);
    }
    .archetype-badge-pos {
      position: absolute;
      top: 14px;
      left: 14px;
      background: rgba(10, 15, 29, 0.85);
      border: 1px solid var(--border-light);
      padding: 4px 10px;
      border-radius: 6px;
      font-size: 11px;
      color: var(--primary-neon);
    }
    .archetype-content {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .archetype-title {
      font-size: 18px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 8px;
    }
    .archetype-spec {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 18px;
      line-height: 1.6;
    }

    /* 6. 核心效能对比区 */
    .benchmark-table {
      width: 100%;
      border-collapse: separate;
      border-spacing: 0;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      background: var(--bg-card);
    }
    .benchmark-table th, .benchmark-table td {
      padding: 18px 24px;
      text-align: left;
      font-size: 14px;
      border-bottom: 1px solid var(--border-light);
    }
    .benchmark-table th {
      background: rgba(255, 255, 255, 0.03);
      color: var(--text-sub);
      font-weight: 600;
    }
    .benchmark-table tr:last-child td {
      border-bottom: none;
    }
    .benchmark-col-ai {
      color: var(--primary-neon) !important;
      font-weight: 600;
      background: rgba(0, 102, 255, 0.05);
    }

    /* 7. 深度案例与架构理念区 */
    .showcase-banner {
      position: relative;
      background-size: cover;
      background-position: center;
      border-radius: var(--radius-md);
      overflow: hidden;
      padding: 60px 40px;
      border: 1px solid var(--border-light);
    }
    .showcase-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(10, 15, 29, 0.95) 0%, rgba(10, 15, 29, 0.75) 60%, rgba(10, 15, 29, 0.4) 100%);
    }
    .showcase-inner {
      position: relative;
      z-index: 2;
      max-width: 620px;
    }

    /* 8. 工作室用户故事区 */
    .client-story-card {
      padding: 32px;
      height: 100%;
    }
    .story-meta {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 16px;
    }
    .story-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: rgba(0, 102, 255, 0.2);
      border: 1px solid var(--primary-neon);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: #FFFFFF;
    }

    /* 9. 里程碑时间轴 */
    .milestone-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
      margin-top: 30px;
    }
    .milestone-node {
      position: relative;
      padding: 24px 20px;
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
    }
    .milestone-dot {
      width: 12px;
      height: 12px;
      background: var(--primary-neon);
      border-radius: 50%;
      box-shadow: 0 0 10px var(--primary-neon);
      margin-bottom: 14px;
    }
    .milestone-version {
      font-size: 18px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 6px;
    }
    .milestone-info {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 10. 资讯动态摘要 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .news-card {
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .news-tag {
      font-size: 12px;
      color: var(--primary-neon);
      margin-bottom: 10px;
    }
    .news-title {
      font-size: 16px;
      font-weight: 600;
      color: #FFFFFF;
      margin-bottom: 12px;
      line-height: 1.5;
    }
    .news-summary {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 16px;
    }

    /* 11. FAQ 手风琴 */
    .faq-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }
    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      padding: 20px 24px;
      cursor: pointer;
      transition: all 0.3s ease;
    }
    .faq-item.active {
      border-left: 3px solid var(--primary-neon);
      box-shadow: 0 0 15px rgba(0, 102, 255, 0.2);
    }
    .faq-q {
      font-size: 15px;
      font-weight: 600;
      color: #FFFFFF;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .faq-a {
      display: none;
      font-size: 14px;
      color: var(--text-muted);
      margin-top: 12px;
      line-height: 1.6;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 10px;
    }
    .faq-item.active .faq-a {
      display: block;
    }

    /* 12. 接入保障与表单区 */
    .form-wrapper {
      padding: 40px;
      border: 1px solid var(--border-light);
    }
    .form-control-input {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      color: #FFFFFF;
      padding: 12px 16px;
      width: 100%;
      margin-bottom: 16px;
      font-size: 14px;
      outline: none;
      transition: border-color 0.3s;
    }
    .form-control-input:focus {
      border-color: var(--primary-neon);
      background: rgba(255, 255, 255, 0.07);
    }
    .form-label {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 6px;
      display: block;
    }

    /* 页脚 */
    .site-footer {
      background: #050811;
      border-top: 1px solid var(--border-light);
      padding: 70px 0 30px 0;
      font-size: 13px;
      color: var(--text-sub);
    }
    .footer-col-title {
      font-size: 15px;
      font-weight: 600;
      color: #FFFFFF;
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: var(--text-muted);
    }
    .footer-links a:hover {
      color: var(--primary-neon);
    }
    .footer-bottom {
      margin-top: 50px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      text-align: center;
      font-size: 12px;
      color: #475569;
    }

    /* 响应式断点控制 */
    @media (max-width: 1024px) {
      .matrix-grid, .archetype-grid, .milestone-timeline, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 768px) {
      .nav-menu, .nav-command {
        display: none;
      }
      .hero-h1 {
        font-size: 32px;
      }
      .matrix-grid, .archetype-grid, .milestone-timeline, .news-grid, .faq-grid {
        grid-template-columns: 1fr;
      }
      .app-section {
        padding: 60px 0;
      }
      .showcase-banner {
        padding: 30px 20px;
      }
      .form-wrapper {
        padding: 24px 16px;
      }
    }