/* roulang page: index */
:root {
      --primary: #00E676;
      --primary-hover: #00c853;
      --accent: #FF6D00;
      --accent-hover: #e65100;
      --bg-deep: #0A0E14;
      --bg-surface: #121820;
      --bg-card: #1A2332;
      --text-main: #FFFFFF;
      --text-sub: #94A3B8;
      --border-light: rgba(255, 255, 255, 0.08);
      --border-active: rgba(0, 230, 118, 0.35);
      --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.5), inset 0 0 0 1px rgba(255, 255, 255, 0.05);
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    html {
      scroll-behavior: smooth;
      background-color: var(--bg-deep);
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: var(--font-stack);
      color: var(--text-main);
      background-color: var(--bg-deep);
      line-height: 1.6;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }
    /* 顶部双行导航 */
    .top-bar {
      background: #06090D;
      border-bottom: 1px solid var(--border-light);
      font-size: 12px;
      color: var(--text-sub);
      padding: 8px 0;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .status-indicator {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .status-dot {
      width: 8px;
      height: 8px;
      background-color: var(--primary);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--primary);
    }
    .header-main {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(10, 14, 20, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-light);
    }
    .nav-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 70px;
    }
    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 18px;
      font-weight: 700;
      letter-spacing: 0.5px;
      color: #fff;
    }
    .logo-badge {
      background: var(--primary);
      color: #000;
      font-size: 11px;
      font-weight: 900;
      padding: 2px 6px;
      border-radius: 4px;
      text-transform: uppercase;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 20px;
      list-style: none;
    }
    .nav-links a {
      font-size: 14px;
      color: var(--text-sub);
    }
    .nav-links a:hover {
      color: var(--primary);
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 18px;
      font-size: 13px;
      font-weight: 600;
      border-radius: 6px;
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.2s ease;
      white-space: nowrap;
    }
    .btn-primary {
      background-color: var(--accent);
      color: #FFFFFF;
    }
    .btn-primary:hover {
      background-color: var(--accent-hover);
      box-shadow: 0 0 14px rgba(255, 109, 0, 0.4);
    }
    .btn-outline {
      border-color: var(--border-light);
      background-color: rgba(255, 255, 255, 0.04);
      color: #FFF;
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
    }
    /* 板块通用 */
    section {
      padding: 70px 0;
      border-bottom: 1px solid var(--border-light);
      position: relative;
    }
    .section-title-wrap {
      max-width: 760px;
      margin-bottom: 36px;
    }
    .section-tag {
      display: inline-block;
      font-size: 12px;
      color: var(--primary);
      font-weight: 700;
      letter-spacing: 1px;
      text-transform: uppercase;
      margin-bottom: 8px;
    }
    .section-title {
      font-size: 26px;
      font-weight: 700;
      color: #FFF;
      line-height: 1.3;
      margin-bottom: 12px;
    }
    .section-desc {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.7;
    }
    /* Hero 板块：杂志分栏紧凑首屏 */
    .hero-section {
      padding: 50px 0 60px;
      background: linear-gradient(180deg, rgba(18, 24, 32, 0.8) 0%, rgba(10, 14, 20, 1) 100%), url('/assets/images/5eb7ffb70ea3644f.webp') center/cover no-repeat;
    }
    .hero-magazine-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr;
      gap: 30px;
      align-items: stretch;
    }
    .hero-left-box {
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .hero-h1 {
      font-size: 38px;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 16px;
      color: #FFF;
      letter-spacing: -0.5px;
    }
    .hero-h1 span {
      color: var(--primary);
    }
    .hero-paragraph {
      font-size: 15px;
      color: #CBD5E1;
      line-height: 1.75;
      margin-bottom: 24px;
    }
    .hero-ctas {
      display: flex;
      gap: 14px;
      align-items: center;
      margin-bottom: 28px;
    }
    .hero-status-row {
      display: flex;
      gap: 20px;
      border-top: 1px solid var(--border-light);
      padding-top: 18px;
    }
    .hero-metric-item {
      display: flex;
      flex-direction: column;
    }
    .hero-metric-val {
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      font-variant-numeric: tabular-nums;
    }
    .hero-metric-label {
      font-size: 12px;
      color: var(--text-sub);
    }
    .hero-right-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-light);
      border-radius: 8px;
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      box-shadow: var(--shadow-card);
    }
    .hero-card-head {
      border-bottom: 1px solid var(--border-light);
      padding-bottom: 12px;
      margin-bottom: 16px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .hero-card-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .hero-card-list li {
      font-size: 13px;
      color: var(--text-sub);
      display: flex;
      align-items: flex-start;
      gap: 8px;
      line-height: 1.5;
    }
    .hero-card-list li strong {
      color: #FFF;
      display: block;
    }
    /* 核心介绍 / 品牌故事 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .img-frame {
      border-radius: 8px;
      overflow: hidden;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-card);
    }
    .arch-specs {
      margin-top: 20px;
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
    }
    .spec-badge {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid var(--border-light);
      padding: 12px;
      border-radius: 6px;
    }
    .spec-badge-title {
      font-size: 12px;
      color: var(--text-sub);
      margin-bottom: 4px;
    }
    .spec-badge-val {
      font-size: 14px;
      font-weight: 700;
      color: #FFF;
    }
    /* 核心优势矩阵 */
    .grid-3x2 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .advantage-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-light);
      padding: 24px;
      border-radius: 8px;
      box-shadow: var(--shadow-card);
      transition: all 0.25s ease;
    }
    .advantage-card:hover {
      border-color: var(--border-active);
      transform: translateY(-2px);
    }
    .advantage-icon {
      font-size: 12px;
      color: var(--primary);
      font-weight: 800;
      margin-bottom: 12px;
      display: inline-block;
      border: 1px solid var(--border-active);
      padding: 3px 8px;
      border-radius: 4px;
      background: rgba(0, 230, 118, 0.05);
    }
    .advantage-title {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
      color: #FFF;
    }
    .advantage-text {
      font-size: 13px;
      color: var(--text-sub);
      line-height: 1.6;
    }
    /* 产品矩阵 */
    .product-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .product-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-light);
      border-radius: 8px;
      padding: 28px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
    }
    .product-card.featured {
      border-color: var(--primary);
      background: linear-gradient(180deg, #16202B 0%, #121820 100%);
    }
    .product-name {
      font-size: 20px;
      font-weight: 700;
      color: #FFF;
      margin-bottom: 10px;
    }
    .product-summary {
      font-size: 13px;
      color: var(--text-sub);
      margin-bottom: 20px;
      line-height: 1.6;
    }
    .product-checklist {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
      margin-bottom: 24px;
    }
    .product-checklist li {
      font-size: 13px;
      color: #CBD5E1;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .product-checklist li::before {
      content: "✓";
      color: var(--primary);
      font-weight: 900;
    }
    /* 全景技术架构 */
    .pipeline-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      position: relative;
    }
    .pipeline-step {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      padding: 20px;
      border-radius: 6px;
      position: relative;
    }
    .step-number {
      font-size: 12px;
      font-weight: 800;
      color: var(--accent);
      margin-bottom: 8px;
    }
    .step-title {
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .step-desc {
      font-size: 12px;
      color: var(--text-sub);
      line-height: 1.6;
    }
    /* 应用场景 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .scenario-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-light);
      border-radius: 8px;
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .scenario-body {
      padding: 24px;
    }
    .scenario-tag {
      font-size: 11px;
      color: var(--primary);
      font-weight: 700;
      margin-bottom: 6px;
      text-transform: uppercase;
    }
    .scenario-h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .scenario-desc {
      font-size: 13px;
      color: var(--text-sub);
      line-height: 1.6;
    }
    /* 实时计算引擎演示 */
    .console-box {
      background: #05070A;
      border: 1px solid rgba(0, 230, 118, 0.25);
      border-radius: 8px;
      padding: 20px;
      font-family: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
      font-size: 12px;
      line-height: 1.6;
      color: #A7F3D0;
      overflow-x: auto;
    }
    .console-header {
      display: flex;
      justify-content: space-between;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      padding-bottom: 10px;
      margin-bottom: 14px;
      color: var(--text-sub);
    }
    .token-kw { color: #F43F5E; }
    .token-str { color: #FBBF24; }
    .token-val { color: var(--primary); }
    /* 标杆案例拆解 */
    .case-banner {
      background: var(--bg-surface);
      border: 1px solid var(--border-light);
      border-radius: 8px;
      overflow: hidden;
      display: grid;
      grid-template-columns: 1.2fr 1fr;
    }
    .case-content {
      padding: 36px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .case-stats-row {
      display: flex;
      gap: 24px;
      margin-top: 20px;
    }
    /* 关键性能指标横幅 */
    .metrics-banner {
      background: linear-gradient(90deg, #062817 0%, #0D161F 100%);
      border: 1px solid var(--border-active);
      border-radius: 8px;
      padding: 32px 40px;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      text-align: center;
    }
    .metric-col-val {
      font-size: 32px;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 4px;
      font-variant-numeric: tabular-nums;
    }
    .metric-col-name {
      font-size: 13px;
      color: #E2E8F0;
    }
    /* 客户评价墙 */
    .reviews-masonry {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .review-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-light);
      border-radius: 8px;
      padding: 24px;
      position: relative;
    }
    .review-rating {
      color: #F59E0B;
      font-size: 14px;
      margin-bottom: 12px;
      letter-spacing: 2px;
    }
    .review-quote {
      font-size: 13px;
      color: #CBD5E1;
      line-height: 1.65;
      margin-bottom: 18px;
    }
    .review-author {
      font-size: 12px;
      font-weight: 700;
      color: #FFF;
    }
    .review-role {
      font-size: 11px;
      color: var(--text-sub);
    }
    /* 阶梯定价 */
    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .pricing-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-light);
      border-radius: 8px;
      padding: 30px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
    }
    .pricing-card.popular {
      border-color: var(--primary);
      box-shadow: 0 0 25px rgba(0, 230, 118, 0.15);
    }
    .badge-pop {
      position: absolute;
      top: -12px;
      right: 24px;
      background: var(--primary);
      color: #000;
      font-size: 11px;
      font-weight: 800;
      padding: 2px 10px;
      border-radius: 20px;
    }
    .pricing-tier {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .pricing-price {
      font-size: 28px;
      font-weight: 800;
      color: #FFF;
      margin-bottom: 16px;
    }
    .pricing-price span {
      font-size: 13px;
      font-weight: 400;
      color: var(--text-sub);
    }
    .pricing-features {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
      margin-bottom: 24px;
      font-size: 13px;
      color: var(--text-sub);
    }
    /* 资讯列表 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .news-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-light);
      border-radius: 8px;
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .news-card-body {
      padding: 18px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
      justify-content: space-between;
    }
    .news-tag {
      font-size: 11px;
      color: var(--accent);
      font-weight: 700;
      margin-bottom: 6px;
    }
    .news-title {
      font-size: 14px;
      font-weight: 700;
      line-height: 1.5;
      margin-bottom: 10px;
      color: #FFF;
    }
    .news-summary {
      font-size: 12px;
      color: var(--text-sub);
      line-height: 1.6;
      margin-bottom: 14px;
    }
    /* 常见问题 FAQ */
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-item {
      background: var(--bg-surface);
      border: 1px solid var(--border-light);
      border-radius: 6px;
      padding: 18px 22px;
    }
    .faq-item summary {
      font-size: 15px;
      font-weight: 700;
      color: #FFF;
      cursor: pointer;
      outline: none;
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .faq-item summary::-webkit-details-marker {
      display: none;
    }
    .faq-item summary::after {
      content: "+";
      color: var(--primary);
      font-size: 18px;
      font-weight: 700;
    }
    .faq-item[open] summary::after {
      content: "−";
    }
    .faq-item p {
      margin-top: 12px;
      font-size: 13px;
      color: var(--text-sub);
      line-height: 1.7;
    }
    /* 转化 CTA */
    .cta-banner {
      background: radial-gradient(circle at center, #182822 0%, #0A0E14 80%);
      border: 1px solid var(--border-active);
      border-radius: 12px;
      padding: 60px 20px;
      text-align: center;
    }
    .cta-input-group {
      max-width: 460px;
      margin: 24px auto 0;
      display: flex;
      gap: 10px;
    }
    .cta-input {
      flex: 1;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid var(--border-light);
      padding: 12px 16px;
      border-radius: 6px;
      font-size: 13px;
      color: #FFF;
      outline: none;
    }
    .cta-input:focus {
      border-color: var(--primary);
    }
    /* 页脚 */
    footer {
      background: #06090D;
      padding: 60px 0 30px;
      border-top: 1px solid var(--border-light);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
      gap: 30px;
      margin-bottom: 40px;
    }
    .footer-brand p {
      font-size: 13px;
      color: var(--text-sub);
      line-height: 1.7;
      margin-top: 12px;
    }
    .footer-col-title {
      font-size: 14px;
      font-weight: 700;
      color: #FFF;
      margin-bottom: 16px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a {
      font-size: 13px;
      color: var(--text-sub);
    }
    .footer-links a:hover {
      color: var(--primary);
    }
    .footer-trust-badges {
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 12px;
      color: var(--text-sub);
    }
    .trust-pill {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--border-light);
      padding: 8px 12px;
      border-radius: 4px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .footer-bottom {
      border-top: 1px solid var(--border-light);
      padding-top: 24px;
      font-size: 12px;
      color: var(--text-sub);
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
    }
    /* 移动端汉堡切换与断点响应式 */
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      color: #FFF;
      font-size: 22px;
      cursor: pointer;
    }
    @media (max-width: 1024px) {
      .grid-3x2, .product-grid, .pricing-grid, .reviews-masonry {
        grid-template-columns: repeat(2, 1fr);
      }
      .pipeline-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 768px) {
      .hero-magazine-grid, .about-grid, .case-banner, .scenario-grid {
        grid-template-columns: 1fr;
      }
      .metrics-banner {
        grid-template-columns: repeat(2, 1fr);
        padding: 24px;
      }
      .menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: #0A0E14;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-light);
        gap: 16px;
      }
      .nav-links.open {
        display: flex;
      }
      .top-bar-inner {
        flex-direction: column;
        gap: 4px;
        text-align: center;
      }
      .cta-input-group {
        flex-direction: column;
      }
      .grid-3x2, .product-grid, .pricing-grid, .reviews-masonry, .pipeline-grid, .news-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }