/* roulang page: index */
:root {
      --primary: #00A859;
      --primary-dark: #007A3E;
      --accent: #FFB800;
      --bg-dark: #0B0F12;
      --bg-dark-card: #141A20;
      --bg-light: #F8FAFC;
      --bg-white: #FFFFFF;
      --text-main: #0F172A;
      --text-muted: #475569;
      --text-sub: #64748B;
      --text-light: #F1F5F9;
      --text-dim: #94A3B8;
      --border-light: #E2E8F0;
      --border-dark: #242E38;
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
      --shadow-md: 0 10px 25px -5px rgba(0,0,0,0.06), 0 8px 10px -6px rgba(0,0,0,0.04);
      --shadow-hover: 0 20px 30px -10px rgba(0, 168, 89, 0.18);
      --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
      --container-w: 1240px;
      --font-mono: "JetBrains Mono", "SF Mono", Consolas, Menlo, monospace;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
      background-color: var(--bg-white);
      color: var(--text-main);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

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

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

    button, input, select, textarea {
      font-family: inherit;
      font-size: inherit;
    }

    .container {
      width: 100%;
      max-width: var(--container-w);
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* 顶部复合导航 */
    .top-bar {
      background-color: var(--bg-dark);
      color: var(--text-dim);
      font-size: 12px;
      border-bottom: 1px solid var(--border-dark);
      padding: 6px 0;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .tech-status {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .status-dot {
      display: inline-block;
      width: 8px;
      height: 8px;
      background-color: var(--primary);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--primary);
    }
    .top-quick-links {
      display: flex;
      gap: 16px;
      align-items: center;
    }
    .top-quick-links a:hover {
      color: var(--primary);
    }

    .main-header {
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(8px);
      border-bottom: 1px solid var(--border-light);
      position: sticky;
      top: 0;
      z-index: 1000;
    }
    .header-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 72px;
    }
    .logo-box {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      font-size: 19px;
      color: var(--text-main);
      letter-spacing: -0.5px;
    }
    .logo-icon {
      width: 34px;
      height: 34px;
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 18px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 24px;
      list-style: none;
    }
    .nav-links a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-muted);
      position: relative;
      padding: 6px 0;
    }
    .nav-links a:hover, .nav-links a.active {
      color: var(--primary);
    }
    .nav-links a.active::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
    }
    .header-cta-btn {
      background-color: var(--primary);
      color: #fff;
      font-weight: 600;
      padding: 9px 20px;
      border-radius: var(--radius-sm);
      font-size: 14px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .header-cta-btn:hover {
      background-color: var(--primary-dark);
      transform: translateY(-1px);
      box-shadow: 0 4px 12px rgba(0, 168, 89, 0.25);
    }
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }
    .mobile-menu-btn span {
      display: block;
      width: 22px;
      height: 2px;
      background-color: var(--text-main);
      margin: 5px 0;
      transition: var(--transition);
    }

    /* 按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 28px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      transition: var(--transition);
      cursor: pointer;
      border: 1px solid transparent;
      font-size: 15px;
    }
    .btn-primary {
      background-color: var(--primary);
      color: #fff;
    }
    .btn-primary:hover {
      background-color: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: var(--shadow-hover);
    }
    .btn-outline {
      background-color: transparent;
      border-color: var(--border-light);
      color: var(--text-main);
    }
    .btn-outline:hover {
      border-color: var(--text-main);
      background-color: rgba(0,0,0,0.02);
    }
    .btn-white {
      background-color: #fff;
      color: var(--text-main);
      border-color: #fff;
    }
    .btn-white:hover {
      background-color: var(--bg-light);
    }

    /* 通用章节样式 */
    .section {
      padding: 80px 0;
      position: relative;
    }
    .section-light {
      background-color: var(--bg-light);
    }
    .section-white {
      background-color: var(--bg-white);
    }
    .section-dark {
      background-color: var(--bg-dark);
      color: var(--text-light);
    }
    .section-head {
      margin-bottom: 48px;
    }
    .section-tag {
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 8px;
      display: inline-block;
    }
    .section-dark .section-tag {
      color: #38ef7d;
    }
    .section-title {
      font-size: 32px;
      line-height: 1.3;
      font-weight: 800;
      letter-spacing: -0.5px;
      margin-bottom: 14px;
    }
    .section-dark .section-title {
      color: #ffffff;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      max-width: 820px;
      line-height: 1.7;
    }
    .section-dark .section-desc {
      color: var(--text-dim);
    }

    /* 板块一：全宽浅色矮横幅 Hero */
    .hero-strip {
      background: linear-gradient(180deg, #F0FDF4 0%, #FFFFFF 100%);
      padding: 60px 0 50px;
      border-bottom: 1px solid var(--border-light);
    }
    .hero-wrapper {
      display: grid;
      grid-template-columns: 1.25fr 0.95fr;
      gap: 40px;
      align-items: center;
    }
    .hero-h1 {
      font-size: 42px;
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 18px;
      letter-spacing: -1px;
    }
    .hero-p {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 26px;
    }
    .hero-actions {
      display: flex;
      gap: 14px;
      margin-bottom: 30px;
      flex-wrap: wrap;
    }
    .hero-badges {
      display: flex;
      align-items: center;
      gap: 20px;
      font-size: 13px;
      color: var(--text-sub);
    }
    .hero-badge-item {
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .hero-badge-item::before {
      content: "✓";
      color: var(--primary);
      font-weight: bold;
    }
    .hero-visual-card {
      background: var(--bg-dark);
      border-radius: var(--radius-md);
      padding: 20px;
      border: 1px solid var(--border-dark);
      box-shadow: var(--shadow-md);
      position: relative;
    }
    .console-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid var(--border-dark);
      padding-bottom: 12px;
      margin-bottom: 14px;
    }
    .console-title {
      font-size: 13px;
      font-family: var(--font-mono);
      color: var(--accent);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .metric-grid-compact {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 10px;
      margin-bottom: 14px;
    }
    .metric-box-sub {
      background: rgba(255,255,255,0.04);
      padding: 10px;
      border-radius: var(--radius-sm);
      text-align: center;
    }
    .metric-val {
      font-family: var(--font-mono);
      font-size: 18px;
      font-weight: bold;
      color: #fff;
    }
    .metric-lab {
      font-size: 11px;
      color: var(--text-dim);
    }

    /* 板块二：卖点三连 */
    .triplet-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .triplet-card {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      padding: 30px;
      border-radius: var(--radius-md);
      transition: var(--transition);
    }
    .triplet-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }
    .triplet-num {
      font-family: var(--font-mono);
      font-size: 14px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 12px;
    }
    .triplet-title {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .triplet-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块三：入口矩阵区 */
    .portal-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .portal-item {
      background: var(--bg-white);
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-light);
      transition: var(--transition);
      display: block;
    }
    .portal-item:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }
    .portal-icon {
      font-size: 24px;
      color: var(--primary);
      margin-bottom: 12px;
    }
    .portal-title {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .portal-text {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块四：最新发布特性 */
    .release-box {
      background: var(--bg-white);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-light);
      overflow: hidden;
      display: grid;
      grid-template-columns: 1fr 1fr;
    }
    .release-content {
      padding: 44px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .release-tag {
      background: #E8F5E9;
      color: var(--primary-dark);
      font-size: 12px;
      font-weight: bold;
      padding: 4px 10px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 16px;
      align-self: flex-start;
    }
    .release-list {
      list-style: none;
      margin: 20px 0;
    }
    .release-list li {
      padding: 8px 0;
      font-size: 14px;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .release-list li::before {
      content: "•";
      color: var(--primary);
      font-size: 20px;
    }
    .release-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    /* 板块五：热门专题与套件 (深色) */
    .suite-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .suite-card {
      background: var(--bg-dark-card);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 30px;
      position: relative;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .suite-card.highlight {
      border-color: var(--primary);
      box-shadow: 0 0 20px rgba(0, 168, 89, 0.25);
    }
    .suite-badge {
      position: absolute;
      top: -12px;
      right: 20px;
      background: var(--primary);
      color: #fff;
      font-size: 11px;
      font-weight: bold;
      padding: 3px 10px;
      border-radius: 12px;
    }
    .suite-name {
      font-size: 20px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 12px;
    }
    .suite-desc {
      font-size: 14px;
      color: var(--text-dim);
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .suite-feature-list {
      list-style: none;
      border-top: 1px solid var(--border-dark);
      padding-top: 16px;
      margin-bottom: 20px;
    }
    .suite-feature-list li {
      font-size: 13px;
      color: var(--text-light);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .suite-feature-list li::before {
      content: "✓";
      color: var(--accent);
      font-size: 12px;
    }

    /* 板块六：技术拓扑架构 */
    .topo-diagram {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      position: relative;
    }
    .topo-step {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
    }
    .topo-idx {
      font-size: 12px;
      font-family: var(--font-mono);
      color: var(--primary);
      font-weight: bold;
      margin-bottom: 8px;
    }
    .topo-step h3 {
      font-size: 16px;
      margin-bottom: 8px;
    }
    .topo-step p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块七：典型赛事应用场景 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .scenario-card {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 28px;
      display: flex;
      gap: 20px;
      transition: var(--transition);
    }
    .scenario-card:hover {
      box-shadow: var(--shadow-md);
      border-color: var(--primary);
    }
    .scenario-icon-side {
      width: 48px;
      height: 48px;
      background: #E8F5E9;
      color: var(--primary);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      flex-shrink: 0;
    }
    .scenario-content h3 {
      font-size: 18px;
      margin-bottom: 8px;
    }
    .scenario-content p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块八：数据指标条 */
    .metrics-bar-section {
      background: linear-gradient(135deg, var(--bg-dark) 0%, #15201A 100%);
      color: #fff;
      padding: 60px 0;
    }
    .metrics-grid-four {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
      text-align: center;
    }
    .metric-big-num {
      font-size: 44px;
      font-weight: 900;
      font-family: var(--font-mono);
      color: #38ef7d;
      line-height: 1.1;
      margin-bottom: 6px;
    }
    .metric-big-label {
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 4px;
    }
    .metric-big-desc {
      font-size: 12px;
      color: var(--text-dim);
    }

    /* 板块九：实战案例摘要 */
    .case-box {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      align-items: center;
    }
    .case-pic img {
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-md);
      width: 100%;
    }
    .case-body h3 {
      font-size: 26px;
      margin-bottom: 16px;
    }
    .case-tags {
      display: flex;
      gap: 8px;
      margin-bottom: 16px;
    }
    .case-tags span {
      background: var(--bg-light);
      border: 1px solid var(--border-light);
      padding: 4px 10px;
      font-size: 12px;
      border-radius: 4px;
      color: var(--text-muted);
    }
    .case-body p {
      font-size: 15px;
      color: var(--text-muted);
      margin-bottom: 20px;
      line-height: 1.7;
    }

    /* 板块十：技术前瞻与资讯列表 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .news-card {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .news-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-3px);
    }
    .news-thumb {
      height: 180px;
      overflow: hidden;
    }
    .news-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .news-card:hover .news-thumb img {
      transform: scale(1.04);
    }
    .news-info {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .news-date {
      font-size: 12px;
      color: var(--text-sub);
      margin-bottom: 8px;
      font-family: var(--font-mono);
    }
    .news-title {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .news-summary {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 14px;
      flex-grow: 1;
    }

    /* 板块十一：服务方案与接入标准 */
    .pricing-table-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .plan-card {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 36px 28px;
      position: relative;
      display: flex;
      flex-direction: column;
    }
    .plan-card.popular {
      border: 2px solid var(--primary);
      box-shadow: var(--shadow-md);
    }
    .plan-header {
      margin-bottom: 24px;
      text-align: center;
    }
    .plan-title {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .plan-target {
      font-size: 13px;
      color: var(--text-muted);
    }
    .plan-features {
      list-style: none;
      margin-bottom: 30px;
      flex-grow: 1;
    }
    .plan-features li {
      font-size: 14px;
      padding: 10px 0;
      border-bottom: 1px dashed var(--border-light);
      color: var(--text-muted);
      display: flex;
      justify-content: space-between;
    }
    .plan-features li span.val {
      font-weight: 600;
      color: var(--text-main);
      font-family: var(--font-mono);
    }

    /* 板块十二：用户口碑与行业评价 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .testi-card {
      background: var(--bg-white);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 28px;
      position: relative;
    }
    .testi-stars {
      color: var(--accent);
      font-size: 14px;
      margin-bottom: 14px;
    }
    .testi-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .testi-author {
      display: flex;
      align-items: center;
      gap:12px; }
    .testi-avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--bg-light); overflow: hidden; }
    .testi-avatar img { width: 100%; height: 100%; object-fit: cover; }
    .testi-info .name { font-size: 14px; font-weight: 700; color: var(--text-main); display: block; }
    .testi-info .role { font-size: 12px; color: var(--text-sub); }

    /* 板块十三：转化 CTA */
    .cta-final { background: var(--bg-dark); color: #fff; padding: 80px 0; text-align: center; }
    .cta-final h2 { font-size: 36px; margin-bottom: 20px; }
    .cta-final p { font-size: 16px; color: var(--text-dim); margin-bottom: 30px; max-width: 600px; margin-left: auto; margin-right: auto; }
    .cta-form { max-width: 500px; margin: 0 auto; display: flex; gap: 10px; }
    .cta-input { flex-grow: 1; padding: 12px 20px; border-radius: var(--radius-sm); border: 1px solid var(--border-dark); background: #1A2229; color: #fff; }
    .cta-btn { background: var(--primary); color: #fff; border: none; padding: 12px 30px; border-radius: var(--radius-sm); font-weight: 600; cursor: pointer; }

    /* Footer */
    .footer { background: #050709; color: #94A3B8; padding: 60px 0 30px; font-size: 14px; }
    .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
    .footer-brand { font-size: 18px; font-weight: 800; color: #fff; margin-bottom: 15px; }
    .footer-desc { line-height: 1.7; margin-bottom: 20px; }
    .footer-h { color: #fff; font-weight: 600; margin-bottom: 20px; }
    .footer-links { list-style: none; }
    .footer-links li { margin-bottom: 10px; }
    .footer-links a:hover { color: var(--primary); }
    .footer-bottom { border-top: 1px solid #1E293B; margin-top: 40px; padding-top: 20px; text-align: center; font-size: 12px; }

    /* 移动端响应 */
    @media (max-width: 1024px) {
      .triplet-grid, .suite-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
      .portal-grid { grid-template-columns: repeat(2, 1fr); }
      .metrics-grid-four { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 768px) {
      .header-inner { height: 60px; }
      .nav-links, .top-quick-links { display: none; }
      .mobile-menu-btn { display: block; }
      .hero-wrapper { grid-template-columns: 1fr; }
      .triplet-grid, .suite-grid, .news-grid, .portal-grid, .metrics-grid-four, .pricing-table-grid, .scenario-grid, .footer-grid { grid-template-columns: 1fr; }
      .release-box { grid-template-columns: 1fr; }
      .hero-h1 { font-size: 32px; }
      .case-box { grid-template-columns: 1fr; }
      .cta-form { flex-direction: column; }
    }