/* roulang page: index */
:root {
      --bg-darkest: #0B0E14;
      --bg-surface: #121721;
      --bg-card: #1A2232;
      --bg-card-hover: #222B3E;
      --border-color: rgba(71, 85, 105, 0.45);
      --border-focus: #00F5A0;
      --primary: #00F5A0;
      --primary-dim: rgba(0, 245, 160, 0.12);
      --secondary: #00B4D8;
      --accent-purple: #7B2CBF;
      --text-main: #FFFFFF;
      --text-muted: #94A3B8;
      --text-dim: #64748B;
      --danger: #FF3366;
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --container-max: 1240px;
      --shadow-glow: 0 0 24px rgba(0, 245, 160, 0.18);
      --font-stack: Inter, -apple-system, BlinkMacSystemFont, "PingFang SC", "Segoe UI", "Microsoft YaHei", sans-serif;
    }

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

    body {
      background-color: var(--bg-darkest);
      color: var(--text-main);
      font-family: var(--font-stack);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.2s ease;
    }

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

    .container {
      width: 100%;
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 顶部微型信息条 */
    .top-bar {
      background-color: #07090D;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      font-size: 13px;
      color: var(--text-dim);
      padding: 7px 0;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--primary);
    }
    .status-dot {
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--primary);
      box-shadow: 0 0 8px var(--primary);
    }

    /* 主导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(11, 14, 20, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }
    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 20px;
      font-weight: 800;
      letter-spacing: -0.5px;
      color: #fff;
    }
    .brand-icon {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #000;
      font-weight: 900;
      font-size: 18px;
    }
    .nav-menu {
      display: flex;
      list-style: none;
      gap: 28px;
    }
    .nav-link {
      font-size: 15px;
      color: var(--text-muted);
      font-weight: 500;
      position: relative;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--primary);
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    /* 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;
      transition: all 0.25s ease;
      border: 1px solid transparent;
      white-space: nowrap;
    }
    .btn-primary {
      background: var(--primary);
      color: #07090D;
    }
    .btn-primary:hover {
      background: #05df92;
      box-shadow: var(--shadow-glow);
      transform: translateY(-1px);
    }
    .btn-outline {
      border-color: var(--border-color);
      background: rgba(255, 255, 255, 0.03);
      color: var(--text-main);
    }
    .btn-outline:hover {
      border-color: var(--primary);
      background: var(--primary-dim);
      color: var(--primary);
    }

    /* Section 通用规范 */
    .section-wrap {
      padding: 72px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
      position: relative;
    }
    .section-bg-alt {
      background-color: var(--bg-surface);
    }
    .section-header {
      margin-bottom: 44px;
    }
    .section-header.text-center {
      text-align: center;
    }
    .section-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--primary);
      background: var(--primary-dim);
      padding: 4px 12px;
      border-radius: 20px;
      margin-bottom: 12px;
      border: 1px solid rgba(0, 245, 160, 0.25);
    }
    .section-title {
      font-size: 28px;
      font-weight: 800;
      letter-spacing: -0.5px;
      margin-bottom: 12px;
      color: #fff;
    }
    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      max-width: 760px;
      line-height: 1.7;
    }
    .section-header.text-center .section-desc {
      margin: 0 auto;
    }

    /* 1. Hero 板块（工具落地：一句话痛点 + 演示区 + 开始使用） */
    .hero-section {
      padding: 70px 0 60px;
      background: radial-gradient(circle at 50% 20%, rgba(0, 180, 216, 0.12), transparent 60%),
                  linear-gradient(180deg, var(--bg-darkest) 0%, #0d121c 100%);
      position: relative;
      overflow: hidden;
    }
    .hero-pain {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: rgba(255, 51, 102, 0.1);
      border: 1px solid rgba(255, 51, 102, 0.3);
      padding: 6px 16px;
      border-radius: 30px;
      color: #ff7597;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 22px;
    }
    .hero-title {
      font-size: 42px;
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 18px;
      letter-spacing: -1px;
    }
    .hero-title span {
      color: var(--primary);
      text-shadow: 0 0 20px rgba(0, 245, 160, 0.3);
    }
    .hero-paragraph {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.8;
      max-width: 820px;
      margin-bottom: 30px;
    }
    .hero-actions {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
      margin-bottom: 44px;
    }
    /* 演示区 Console Stage */
    .stage-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: 0 20px 40px rgba(0,0,0,0.5);
    }
    .stage-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid rgba(255,255,255,0.06);
      padding-bottom: 14px;
      margin-bottom: 20px;
    }
    .stage-dots {
      display: flex;
      gap: 6px;
    }
    .stage-dots span {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: #475569;
    }
    .stage-dots span:nth-child(1) { background: #ff5f56; }
    .stage-dots span:nth-child(2) { background: #ffbd2e; }
    .stage-dots span:nth-child(3) { background: #27c93f; }
    .live-feed-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 20px;
      font-family: monospace;
    }
    .feed-terminal {
      background: #090c12;
      padding: 16px;
      border-radius: var(--radius-sm);
      font-size: 13px;
      color: #38bdf8;
      line-height: 1.6;
      border: 1px solid rgba(255, 255, 255, 0.05);
      overflow-x: auto;
    }
    .feed-stats-panel {
      background: #121824;
      padding: 16px;
      border-radius: var(--radius-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .stat-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 8px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
      font-size: 14px;
    }
    .stat-val {
      font-weight: 700;
      color: var(--primary);
    }

    /* 2. 入口矩阵 */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .matrix-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .matrix-card:hover {
      border-color: var(--primary);
      transform: translateY(-4px);
      box-shadow: 0 12px 24px rgba(0,0,0,0.4);
    }
    .matrix-icon {
      font-size: 26px;
      margin-bottom: 16px;
      display: inline-block;
    }
    .matrix-title {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
      color: #fff;
    }
    .matrix-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 18px;
    }
    .matrix-link {
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 3. 最新动态（赛事实时推流与数据状态） */
    .stream-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }
    .stream-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px;
      position: relative;
    }
    .stream-badge {
      position: absolute;
      top: 18px;
      right: 18px;
      background: rgba(0, 245, 160, 0.15);
      color: var(--primary);
      font-size: 11px;
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 700;
    }
    .stream-league {
      font-size: 13px;
      color: var(--secondary);
      font-weight: 600;
      margin-bottom: 10px;
    }
    .stream-match {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 14px;
      font-weight: 700;
      font-size: 16px;
    }
    .stream-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      border-top: 1px dashed rgba(255, 255, 255, 0.08);
      padding-top: 12px;
    }

    /* 4. 精选分类板块 */
    .category-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .category-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all 0.25s ease;
    }
    .category-card:hover {
      border-color: var(--secondary);
      transform: translateY(-4px);
    }
    .category-thumb {
      height: 160px;
      width: 100%;
      object-fit: cover;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .category-body {
      padding: 22px;
    }
    .category-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
      color: #fff;
    }
    .category-text {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 14px;
    }
    .category-tags {
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
    }
    .category-tags span {
      background: rgba(255, 255, 255, 0.05);
      font-size: 11px;
      padding: 3px 8px;
      border-radius: 4px;
      color: var(--text-muted);
    }

    /* 5. 核心优势板块 */
    .adv-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .adv-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px;
    }
    .adv-card:hover {
      border-color: var(--primary);
    }
    .adv-num {
      font-size: 28px;
      font-weight: 900;
      color: var(--primary);
      font-family: monospace;
      margin-bottom: 10px;
    }
    .adv-title {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
      color: #fff;
    }
    .adv-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 6. 行业场景卡 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .scenario-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
    }
    .scenario-badge {
      font-size: 11px;
      color: var(--secondary);
      background: rgba(0, 180, 216, 0.1);
      padding: 3px 8px;
      border-radius: 4px;
      font-weight: 600;
      display: inline-block;
      margin-bottom: 12px;
    }
    .scenario-title {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .scenario-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 7. 案例分析决策看板 */
    .case-container {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      display: grid;
      grid-template-columns: 1.1fr 1fr;
    }
    .case-visual {
      position: relative;
    }
    .case-visual img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      min-height: 380px;
    }
    .case-visual-overlay {
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      padding: 24px;
      background: linear-gradient(180deg, transparent 0%, rgba(11, 14, 20, 0.95) 100%);
    }
    .case-content {
      padding: 36px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .case-step {
      margin-bottom: 20px;
      padding-left: 18px;
      border-left: 2px solid var(--primary);
    }
    .case-step h4 {
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 4px;
    }
    .case-step p {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 8. 数据指标看板 */
    .metrics-bar {
      background: linear-gradient(90deg, #101622 0%, #151d2c 100%);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px 20px;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      text-align: center;
      gap: 20px;
    }
    .metric-value {
      font-size: 40px;
      font-weight: 900;
      color: #fff;
      font-family: monospace;
      letter-spacing: -1px;
      margin-bottom: 6px;
    }
    .metric-value span {
      color: var(--primary);
      font-size: 24px;
    }
    .metric-label {
      font-size: 13px;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 9. 资讯周报摘要 */
    .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-card-thumb {
      height: 170px;
      width: 100%;
      object-fit: cover;
    }
    .news-body {
      padding: 22px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .news-date {
      font-size: 12px;
      color: var(--text-dim);
      margin-bottom: 8px;
    }
    .news-title {
      font-size: 16px;
      font-weight: 700;
      line-height: 1.5;
      margin-bottom: 10px;
      color: #fff;
    }
    .news-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 14px;
    }

    /* 10. 版本更新与演进 */
    .timeline-wrap {
      max-width: 860px;
      margin: 0 auto;
      border-left: 2px solid rgba(255,255,255,0.08);
      padding-left: 30px;
    }
    .timeline-item {
      position: relative;
      margin-bottom: 36px;
    }
    .timeline-item::before {
      content: "";
      position: absolute;
      left: -37px;
      top: 4px;
      width: 12px;
      height: 12px;
      border-radius: 50%;
      background: var(--primary);
      box-shadow: 0 0 10px var(--primary);
    }
    .timeline-ver {
      font-family: monospace;
      font-weight: 800;
      color: var(--primary);
      font-size: 16px;
      margin-bottom: 6px;
    }
    .timeline-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 11. 跨平台/多端接入 */
    .multi-platform-box {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .sdk-box h4 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--secondary);
    }
    .sdk-box p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 14px;
    }
    .sdk-code-snippet {
      background: #0d121c;
      padding: 10px 14px;
      border-radius: 6px;
      font-family: monospace;
      font-size: 12px;
      color: #7dd3fc;
      border: 1px solid rgba(255,255,255,0.05);
    }

    /* 12. 套餐对比 */
    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .pricing-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px;
      position: relative;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .pricing-card.featured {
      border-color: var(--primary);
      background: #141c2c;
      box-shadow: 0 10px 30px rgba(0, 245, 160, 0.08);
    }
    .pricing-featured-badge {
      position: absolute;
      top: -12px;
      right: 24px;
      background: var(--primary);
      color: #07090D;
      font-size: 11px;
      font-weight: 800;
      padding: 3px 10px;
      border-radius: 20px;
    }
    .pricing-name {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .pricing-price {
      font-size: 32px;
      font-weight: 900;
      margin-bottom: 16px;
      color: #fff;
    }
    .pricing-price span {
      font-size: 14px;
      color: var--text-muted);
      font-weight: 400;
    }
    .pricing-list {
      list-style: none;
      margin-bottom: 24px;
      font-size: 13px;
      color: var(--text-muted);
    }
    .pricing-list li {
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .pricing-list li::before {
      content: "✓";
      color: var(--primary);
      font-weight: 900;
    }

    /* 13. 快速解答 FAQ */
    .faq-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      max-width: 1040px;
      margin: 0 auto;
    }
    .faq-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
    }
    .faq-q {
      font-size: 15px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .faq-q::before {
      content: "Q";
      color: var(--primary);
      font-size: 14px;
      font-weight: 900;
    }
    .faq-a {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 14. 转化收口行动条 */
    .cta-banner {
      background: radial-gradient(circle at 50% 50%, #1a273e 0%, #0d121c 100%);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 50px 30px;
      text-align: center;
      box-shadow: 0 0 35px rgba(0, 245, 160, 0.08);
    }
    .cta-banner h3 {
      font-size: 30px;
      font-weight: 800;
      margin-bottom: 12px;
      color: #fff;
    }
    .cta-banner p {
      color: var(--text-muted);
      max-width: 650px;
      margin: 0 auto 28px;
      font-size: 15px;
    }
    .cta-form {
      display: flex;
      justify-content: center;
      gap: 12px;
      max-width: 500px;
      margin: 0 auto;
    }
    .cta-input {
      background: #090c12;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 12px 16px;
      color: #fff;
      font-size: 14px;
      flex-grow: 1;
      outline: none;
    }
    .cta-input:focus {
      border-color: var(--primary);
    }

    /* 页脚 */
    .site-footer {
      background: #07090D;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding: 60px 0 30px;
      font-size: 13px;
      color: var(--text-dim);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-brand-title {
      font-size: 18px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 14px;
    }
    .footer-col-title {
      font-size: 14px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
    }
    .footer-links {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 8px;
    }
    .footer-links a:hover {
      color: var(--primary);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }

    /* 移动端适配 */
    @media (max-width: 1024px) {
      .matrix-grid, .scenario-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .metrics-bar {
        grid-template-columns: repeat(2, 1fr);
        gap: 28px;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .case-container {
        grid-template-columns: 1fr;
      }
    }
    @media (max-width: 768px) {
      .nav-menu {
        display: none;
      }
      .hero-title {
        font-size: 28px;
      }
      .live-feed-grid, .category-grid, .adv-grid, .stream-grid, .news-grid, .pricing-grid, .faq-grid, .multi-platform-box {
        grid-template-columns: 1fr;
      }
      .matrix-grid, .scenario-grid {
        grid-template-columns: 1fr;
      }
      .cta-form {
        flex-direction: column;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }