/* roulang page: index */
:root {
      --primary: #7C3AED;
      --primary-hover: #6D28D9;
      --primary-light: rgba(124, 58, 237, 0.1);
      --accent: #06B6D4;
      --accent-hover: #0891B2;
      --bg-main: #F8FAFC;
      --bg-white: #FFFFFF;
      --bg-dark: #0F172A;
      --bg-dark-card: #1E293B;
      --text-main: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
      --border-dark: rgba(255, 255, 255, 0.08);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --radius-full: 9999px;
      --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
      --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
      --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.07), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
      --shadow-hover: 0 20px 25px -5px rgba(124, 58, 237, 0.12), 0 8px 10px -6px rgba(124, 58, 237, 0.06);
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

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

    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-body);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

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

    button, input {
      font-family: inherit;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 1.5rem;
    }

    /* 顶部通告条与主导航 */
    .header-wrapper {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }

    .top-bar {
      background: var(--bg-dark);
      color: #94A3B8;
      font-size: 0.8125rem;
      padding: 0.4rem 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

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

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

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 0.6rem;
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
    }

    .brand-logo-icon {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 1.1rem;
      font-weight: 900;
      box-shadow: 0 4px 10px rgba(124, 58, 237, 0.3);
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 1.75rem;
      list-style: none;
    }

    .nav-link {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-body);
      position: relative;
      padding: 0.5rem 0;
    }

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

    .nav-link.active::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 0.65rem 1.4rem;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      white-space: nowrap;
    }

    .btn-primary {
      background: var(--primary);
      color: #FFFFFF;
      box-shadow: 0 4px 12px rgba(124, 58, 237, 0.25);
    }

    .btn-primary:hover {
      background: var(--primary-hover);
      box-shadow: 0 6px 18px rgba(124, 58, 237, 0.35);
      transform: translateY(-2px);
    }

    .btn-outline {
      background: #FFFFFF;
      color: var(--text-main);
      border-color: var(--border-color);
    }

    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: var(--primary-light);
    }

    .btn-accent {
      background: var(--accent);
      color: #0F172A;
    }

    .btn-accent:hover {
      background: var(--accent-hover);
      color: #FFFFFF;
      transform: translateY(-2px);
    }

    .nav-mobile-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--text-main);
      cursor: pointer;
    }

    /* Section 通用规范 */
    .section {
      padding: 5rem 0;
      position: relative;
    }

    .section-alt {
      background-color: var(--bg-white);
    }

    .section-header {
      max-width: 760px;
      margin: 0 auto 3.5rem auto;
      text-align: center;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.8125rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--primary);
      background: var(--primary-light);
      padding: 0.3rem 0.85rem;
      border-radius: var(--radius-full);
      margin-bottom: 0.75rem;
    }

    .section-title {
      font-size: 2.15rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 1rem;
    }

    .section-subtitle {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 1. Hero Section */
    .hero-section {
      position: relative;
      background: linear-gradient(rgba(15, 23, 42, 0.82), rgba(15, 23, 42, 0.92)), url('/assets/images/3f6e59baf81ad4e5.webp') center/cover no-repeat;
      color: #FFFFFF;
      padding: 5.5rem 0 4.5rem;
      overflow: hidden;
    }

    .hero-content {
      max-width: 860px;
      margin: 0 auto 3.5rem auto;
      text-align: center;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      background: rgba(124, 58, 237, 0.35);
      border: 1px solid rgba(124, 58, 237, 0.5);
      color: #E9D5FF;
      font-size: 0.875rem;
      padding: 0.35rem 1rem;
      border-radius: var(--radius-full);
      margin-bottom: 1.5rem;
      backdrop-filter: blur(4px);
    }

    .hero-title {
      font-size: 2.75rem;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 1.25rem;
      letter-spacing: -0.5px;
    }

    .hero-title span {
      background: linear-gradient(135deg, #C084FC, #38BDF8);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 1.1rem;
      color: #CBD5E1;
      line-height: 1.8;
      margin-bottom: 2rem;
    }

    .hero-actions {
      display: flex;
      justify-content: center;
      gap: 1rem;
      margin-bottom: 3.5rem;
    }

    /* 路线图预告节点条 */
    .hero-roadmap {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-lg);
      padding: 1.5rem 2rem;
      backdrop-filter: blur(8px);
    }

    .roadmap-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 1.25rem;
      font-size: 0.9rem;
      font-weight: 600;
      color: #94A3B8;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding-bottom: 0.75rem;
    }

    .roadmap-track {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
      position: relative;
    }

    .roadmap-node {
      position: relative;
    }

    .node-status {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 0.2rem 0.5rem;
      border-radius: 4px;
      margin-bottom: 0.5rem;
    }

    .status-released { background: rgba(34, 197, 94, 0.2); color: #4ADE80; }
    .status-active { background: rgba(6, 182, 212, 0.2); color: #38BDF8; }
    .status-planned { background: rgba(148, 163, 184, 0.2); color: #94A3B8; }

    .node-ver { font-size: 1.1rem; font-weight: 700; color: #FFFFFF; }
    .node-desc { font-size: 0.8125rem; color: #94A3B8; margin-top: 0.25rem; }

    /* 2. 品牌与产品体系介绍区 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 3.5rem;
      align-items: center;
    }

    .about-visual {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
    }

    .about-visual img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }

    .tech-metric-card {
      position: absolute;
      bottom: 1.5rem;
      right: 1.5rem;
      background: rgba(15, 23, 42, 0.88);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(255, 255, 255, 0.15);
      color: #FFFFFF;
      padding: 1.25rem;
      border-radius: var(--radius-md);
      max-width: 240px;
    }

    .tech-metric-num {
      font-size: 2rem;
      font-weight: 800;
      color: var(--accent);
      line-height: 1;
      margin-bottom: 0.25rem;
    }

    .tech-metric-txt {
      font-size: 0.8125rem;
      color: #94A3B8;
    }

    .about-content h3 {
      font-size: 1.75rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 1rem;
    }

    .about-content p {
      color: var(--text-body);
      margin-bottom: 1.25rem;
      line-height: 1.8;
    }

    .about-pills {
      display: flex;
      flex-wrap: wrap;
      gap: 0.75rem;
      margin-top: 1.5rem;
    }

    .about-pill-item {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--primary);
      background: var(--primary-light);
      padding: 0.4rem 0.85rem;
      border-radius: var(--radius-sm);
    }

    /* 3. 核心优势矩阵 */
    .grid-3x2 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.75rem;
    }

    .feature-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 2rem;
      transition: var(--transition);
      position: relative;
    }

    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(124, 58, 237, 0.3);
    }

    .feature-icon {
      width: 52px;
      height: 52px;
      border-radius: var(--radius-md);
      background: linear-gradient(135deg, rgba(124, 58, 237, 0.1), rgba(6, 182, 212, 0.1));
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      font-weight: 700;
      margin-bottom: 1.25rem;
    }

    .feature-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 0.75rem;
    }

    .feature-desc {
      font-size: 0.9375rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 4. 热门娱乐产品系列 */
    .product-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
      align-items: center;
    }

    .product-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 2.25rem;
      transition: var(--transition);
      position: relative;
      box-shadow: var(--shadow-sm);
    }

    .product-card.featured {
      border: 2px solid var(--primary);
      box-shadow: var(--shadow-lg);
      transform: scale(1.04);
      z-index: 2;
    }

    .featured-badge {
      position: absolute;
      top: -14px;
      right: 2rem;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #FFFFFF;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 0.25rem 0.75rem;
      border-radius: var(--radius-full);
      box-shadow: 0 4px 10px rgba(124, 58, 237, 0.3);
    }

    .product-ver {
      font-size: 0.8125rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 0.5rem;
      text-transform: uppercase;
    }

    .product-name {
      font-size: 1.4rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 1rem;
    }

    .product-desc {
      font-size: 0.9375rem;
      color: var(--text-muted);
      margin-bottom: 1.5rem;
      line-height: 1.7;
    }

    .product-list {
      list-style: none;
      margin-bottom: 2rem;
      border-top: 1px dashed var(--border-color);
      padding-top: 1.25rem;
    }

    .product-list li {
      font-size: 0.875rem;
      color: var(--text-body);
      margin-bottom: 0.65rem;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }

    .product-list li::before {
      content: "✓";
      color: var(--primary);
      font-weight: 800;
    }

    /* 5. 前沿技术理念深色区 */
    .section-dark {
      background-color: var(--bg-dark);
      color: #FFFFFF;
      position: relative;
      overflow: hidden;
    }

    .section-dark .section-title {
      color: #FFFFFF;
    }

    .section-dark .section-subtitle {
      color: #94A3B8;
    }

    .tech-matrix {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem;
    }

    .tech-box {
      background: var(--bg-dark-card);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 2.25rem;
      transition: var(--transition);
    }

    .tech-box:hover {
      border-color: var(--accent);
      transform: translateY(-4px);
    }

    .tech-box-icon {
      font-size: 1.75rem;
      color: var(--accent);
      margin-bottom: 1rem;
    }

    .tech-box-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 0.75rem;
    }

    .tech-box-desc {
      font-size: 0.9375rem;
      color: #94A3B8;
      line-height: 1.75;
    }

    /* 6. 行业应用场景方案 */
    .scenarios-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 2rem;
    }

    .scenario-card {
      display: flex;
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }

    .scenario-card:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-2px);
    }

    .scenario-img {
      width: 40%;
      flex-shrink: 0;
      position: relative;
    }

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

    .scenario-body {
      padding: 1.75rem;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .scenario-label {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--accent-hover);
      text-transform: uppercase;
      margin-bottom: 0.4rem;
    }

    .scenario-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 0.5rem;
    }

    .scenario-desc {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 7. 全链路交互流程 */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
      position: relative;
    }

    .flow-step {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 1.75rem;
      position: relative;
    }

    .flow-step-num {
      width: 36px;
      height: 36px;
      border-radius: var(--radius-full);
      background: var(--primary);
      color: #FFFFFF;
      font-weight: 800;
      font-size: 0.95rem;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 1rem;
    }

    .flow-step-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 0.5rem;
    }

    .flow-step-desc {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 8. 案例墙 */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.75rem;
    }

    .case-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      transition: var(--transition);
    }

    .case-card:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-4px);
    }

    .case-img-wrap {
      height: 190px;
      position: relative;
      overflow: hidden;
    }

    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }

    .case-card:hover .case-img-wrap img {
      transform: scale(1.05);
    }

    .case-content {
      padding: 1.5rem;
    }

    .case-tag {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 0.35rem;
    }

    .case-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 0.75rem;
    }

    .case-stats {
      display: flex;
      justify-content: space-between;
      border-top: 1px solid var(--border-color);
      padding-top: 0.85rem;
      margin-top: 0.85rem;
    }

    .case-stat-item span {
      display: block;
      font-size: 0.75rem;
      color: var(--text-muted);
    }

    .case-stat-item strong {
      font-size: 1.05rem;
      color: var(--primary);
      font-weight: 800;
    }

    /* 9. 数据条 */
    .metrics-bar {
      background: linear-gradient(135deg, #1E1B4B, #0F172A);
      color: #FFFFFF;
      padding: 3.5rem 0;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 2rem;
      text-align: center;
    }

    .metric-item {
      padding: 0 1rem;
      border-right: 1px solid rgba(255, 255, 255, 0.1);
    }

    .metric-item:last-child {
      border-right: none;
    }

    .metric-value {
      font-size: 2.75rem;
      font-weight: 800;
      line-height: 1.1;
      margin-bottom: 0.5rem;
      background: linear-gradient(135deg, #A855F7, #38BDF8);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .metric-label {
      font-size: 0.9375rem;
      color: #94A3B8;
      font-weight: 500;
    }

    /* 10. 用户评价区 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.75rem;
    }

    .review-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 2rem;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      box-shadow: var(--shadow-sm);
    }

    .review-stars {
      color: #F59E0B;
      font-size: 0.95rem;
      margin-bottom: 1rem;
    }

    .review-body {
      font-size: 0.9375rem;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 1.5rem;
    }

    .review-author {
      display: flex;
      align-items: center;
      gap: 0.85rem;
    }

    .author-avatar {
      width: 44px;
      height: 44px;
      border-radius: var(--radius-full);
      background: #E2E8F0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
    }

    .author-info h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .author-info span {
      font-size: 0.8125rem;
      color: var(--text-muted);
    }

    /* 11. 动态资讯区 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.75rem;
      margin-bottom: 2.5rem;
    }

    .news-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 1.75rem;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .news-card:hover {
      box-shadow: var(--shadow-md);
      border-color: var(--primary);
    }

    .news-date {
      font-size: 0.8125rem;
      color: var(--text-muted);
      margin-bottom: 0.5rem;
    }

    .news-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 0.75rem;
      line-height: 1.4;
    }

    .news-desc {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 12. FAQ 手风琴 */
    .faq-container {
      max-width: 820px;
      margin: 0 auto;
    }

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

    .faq-item details {
      width: 100%;
    }

    .faq-item summary {
      padding: 1.35rem 1.75rem;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-item summary::-webkit-details-marker {
      display: none;
    }

    .faq-icon {
      font-size: 1.1rem;
      color: var(--text-muted);
      transition: transform 0.3s ease;
    }

    .faq-item details[open] .faq-icon {
      transform: rotate(180deg);
      color: var(--primary);
    }

    .faq-content {
      padding: 0 1.75rem 1.35rem 1.75rem;
      font-size: 0.9375rem;
      color: var(--text-body);
      line-height: 1.75;
      border-top: 1px solid var(--border-color);
      padding-top: 1rem;
    }

    /* 13. 底部商业转化区 */
    .convert-card {
      background: linear-gradient(135deg, #1E1B4B 0%, #0F172A 100%);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-lg);
      padding: 4rem 2rem;
      text-align: center;
      color: #FFFFFF;
      position: relative;
      overflow: hidden;
      box-shadow: var(--shadow-lg);
    }

    .convert-card::before {
      content: "";
      position: absolute;
      top: -50%;
      left: -50%;
      width: 200%;
      height: 200%;
      background: radial-gradient(circle, rgba(124, 58, 237, 0.25) 0%, transparent 60%);
      pointer-events: none;
    }

    .convert-inner {
      position: relative;
      z-index: 2;
      max-width: 650px;
      margin: 0 auto;
    }

    .convert-title {
      font-size: 2.35rem;
      font-weight: 800;
      margin-bottom: 1rem;
      line-height: 1.3;
    }

    .convert-desc {
      font-size: 1.05rem;
      color: #CBD5E1;
      margin-bottom: 2.25rem;
    }

    .convert-form {
      display: flex;
      max-width: 500px;
      margin: 0 auto 1.25rem auto;
      gap: 0.5rem;
    }

    .convert-input {
      flex: 1;
      padding: 0.85rem 1.25rem;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.2);
      background: rgba(255, 255, 255, 0.08);
      color: #FFFFFF;
      font-size: 0.95rem;
      outline: none;
    }

    .convert-input:focus {
      border-color: var(--accent);
      background: rgba(255, 255, 255, 0.12);
    }

    .convert-note {
      font-size: 0.8125rem;
      color: #94A3B8;
    }

    /* Footer 样式 */
    .site-footer {
      background-color: #0B0F19;
      color: #94A3B8;
      padding: 4.5rem 0 2.5rem;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      font-size: 0.875rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 3rem;
      margin-bottom: 3.5rem;
    }

    .footer-brand h4 {
      font-size: 1.3rem;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 1rem;
    }

    .footer-brand p {
      line-height: 1.7;
      margin-bottom: 1.25rem;
    }

    .footer-col h5 {
      font-size: 0.95rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 1.25rem;
    }

    .footer-links {
      list-style: none;
    }

    .footer-links li {
      margin-bottom: 0.65rem;
    }

    .footer-links a:hover {
      color: #FFFFFF;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 2rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 1rem;
      font-size: 0.8125rem;
    }

    /* 移动端自适应适配 */
    @media (max-width: 1024px) {
      .grid-3x2, .tech-matrix, .cases-grid, .news-grid, .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .product-grid {
        grid-template-columns: 1fr;
        max-width: 540px;
        margin: 0 auto;
      }
      .product-card.featured {
        transform: none;
      }
      .flow-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2.5rem 1rem;
      }
      .metric-item:nth-child(2) {
        border-right: none;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .top-bar { display: none; }
      .nav-menu {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #FFFFFF;
        flex-direction: column;
        padding: 1.5rem;
        box-shadow: var(--shadow-lg);
        border-bottom: 1px solid var(--border-color);
        gap: 1rem;
      }
      .nav-menu.active { display: flex; }
      .nav-mobile-toggle { display: block; }
      .about-grid, .scenarios-grid {
        grid-template-columns: 1fr;
      }
      .scenario-card {
        flex-direction: column;
      }
      .scenario-img {
        width: 100%;
        height: 200px;
      }
      .grid-3x2, .tech-matrix, .cases-grid, .news-grid, .reviews-grid, .flow-steps {
        grid-template-columns: 1fr;
      }
      .roadmap-track {
        grid-template-columns: 1fr;
      }
      .hero-title {
        font-size: 2rem;
      }
      .section {
        padding: 3.5rem 0;
      }
      .convert-form {
        flex-direction: column;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }