:root {
      --primary: #0052ff;
      --primary-hover: #003ecb;
      --secondary: #ff3b30;
      --accent: #ff8a00;
      --accent-purple: #7928ca;
      --accent-cyan: #00d2ff;
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --bg-alt: #f1f5f9;
      --text-main: #0f172a;
      --text-muted: #475569;
      --border-color: #e2e8f0;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
      --shadow-md: 0 10px 25px -5px rgba(0, 82, 255, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
      --shadow-hover: 0 20px 30px -10px rgba(0, 82, 255, 0.16);
      --transition: all 0.25s 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: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    a {
      text-decoration: none;
      color: inherit;
    }

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

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(12px);
      border-bottom: 2px solid #eef2f6;
      box-shadow: 0 4px 20px rgba(0,0,0,0.03);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }

    .brand-box {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .ai-page-logo {
      height: 42px;
      width: auto;
      object-fit: contain;
    }

    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
    }

    .brand-badge {
      font-size: 0.75rem;
      background: #e0f2fe;
      color: var(--primary);
      padding: 2px 8px;
      border-radius: 999px;
      font-weight: 700;
    }

    /* gap 严格设定为 0 */
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 0;
    }

    .nav-links li {
      display: inline-block;
    }

    .nav-links a {
      display: inline-block;
      padding: 10px 14px;
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-muted);
      border-radius: var(--radius-sm);
      transition: var(--transition);
      white-space: nowrap;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--primary);
      background-color: #eff6ff;
    }

    .header-cta-group {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 700;
      border-radius: var(--radius-md);
      transition: var(--transition);
      cursor: pointer;
      border: 1px solid transparent;
      text-align: center;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary) 0%, #0070f3 100%);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(0, 82, 255, 0.35);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, var(--primary-hover) 0%, #0059c6 100%);
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(0, 82, 255, 0.45);
    }

    .btn-accent {
      background: linear-gradient(135deg, var(--secondary) 0%, var(--accent) 100%);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(255, 59, 48, 0.3);
    }

    .btn-accent:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 59, 48, 0.45);
    }

    .btn-outline {
      background: #ffffff;
      color: var(--text-main);
      border: 2px solid var(--border-color);
    }

    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: #f8faff;
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--text-main);
      cursor: pointer;
      padding: 8px;
    }

    /* 区域通用样式 */
    .section-wrap {
      padding: 72px 0;
      border-bottom: 1px solid var(--border-color);
    }

    .section-wrap:nth-child(even) {
      background-color: var(--bg-alt);
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 52px;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 800;
      letter-spacing: 1px;
      text-transform: uppercase;
      padding: 4px 14px;
      border-radius: 999px;
      background: linear-gradient(90deg, #ffefe6, #eaf2ff);
      color: var(--primary);
      border: 1px solid #dbeafe;
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
      margin-bottom: 14px;
      line-height: 1.3;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 首屏 Hero - 无图片设计，高饱和科技感 */
    .hero-section {
      padding: 80px 0 60px;
      background: radial-gradient(circle at 80% 20%, rgba(255, 59, 48, 0.08) 0%, transparent 40%),
                  radial-gradient(circle at 10% 80%, rgba(0, 82, 255, 0.1) 0%, transparent 40%),
                  #ffffff;
      border-bottom: 1px solid var(--border-color);
      position: relative;
    }

    .hero-content {
      text-align: center;
      max-width: 980px;
      margin: 0 auto;
    }

    .hero-badges {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
      margin-bottom: 24px;
    }

    .pill-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: #eff6ff;
      border: 1px solid #bfdbfe;
      color: var(--primary);
      font-size: 0.85rem;
      font-weight: 700;
      padding: 6px 16px;
      border-radius: 999px;
    }

    .pill-badge.hot {
      background: #fff1f2;
      border-color: #fecdd3;
      color: var(--secondary);
    }

    .hero-h1 {
      font-size: clamp(2rem, 4vw, 2.75rem);
      font-weight: 900;
      line-height: 1.25;
      color: #0f172a;
      margin-bottom: 22px;
      letter-spacing: -0.5px;
    }

    .hero-h1 span {
      background: linear-gradient(135deg, #0052ff 20%, #ff3b30 80%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-lead {
      font-size: 1.2rem;
      color: var(--text-muted);
      margin-bottom: 36px;
      max-width: 820px;
      margin-left: auto;
      margin-right: auto;
      line-height: 1.8;
    }

    .hero-actions {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }

    .hero-actions .btn {
      padding: 14px 34px;
      font-size: 1.1rem;
    }

    .hero-stats-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 30px;
    }

    .hero-stat-card {
      background: #ffffff;
      border: 2px solid #eef2f6;
      border-radius: var(--radius-md);
      padding: 24px 18px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      text-align: center;
    }

    .hero-stat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--primary);
    }

    .stat-number {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .stat-number.accent {
      color: var(--secondary);
    }

    .stat-label {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-muted);
    }

    /* 模型矩阵徽章展示 */
    .model-matrix-bar {
      margin-top: 40px;
      padding: 20px;
      background: #f8fafc;
      border-radius: var(--radius-md);
      border: 1px dashed #cbd5e1;
    }

    .model-matrix-title {
      font-size: 0.88rem;
      font-weight: 800;
      color: #64748b;
      margin-bottom: 14px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .model-tags-wrap {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 8px;
    }

    .model-tag {
      font-size: 0.8rem;
      font-weight: 700;
      padding: 5px 12px;
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: 6px;
      color: #334155;
      transition: var(--transition);
    }

    .model-tag:hover {
      border-color: var(--primary);
      color: var(--primary);
      transform: translateY(-2px);
    }

    /* 关于与平台介绍 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .about-card {
      background: #ffffff;
      padding: 36px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
    }

    .about-item-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
      margin-top: 24px;
    }

    .about-item {
      display: flex;
      gap: 14px;
      align-items: flex-start;
    }

    .about-item-icon {
      width: 32px;
      height: 32px;
      border-radius: 8px;
      background: #e0f2fe;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 0.9rem;
      flex-shrink: 0;
    }

    .about-item-text h4 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 4px;
    }

    .about-item-text p {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    /* 服务能力卡片 */
    .cards-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      position: relative;
      overflow: hidden;
    }

    .service-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: linear-gradient(90deg, var(--primary), var(--accent));
      opacity: 0;
      transition: var(--transition);
    }

    .service-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: #cbd5e1;
    }

    .service-card:hover::before {
      opacity: 1;
    }

    .service-icon-box {
      width: 52px;
      height: 52px;
      border-radius: 12px;
      background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin-bottom: 20px;
      font-weight: 900;
    }

    .service-card.hot-accent .service-icon-box {
      background: linear-gradient(135deg, #fff1f2 0%, #ffe4e6 100%);
      color: var(--secondary);
    }

    .service-title {
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 12px;
      color: var(--text-main);
    }

    .service-desc {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .service-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }

    .service-chip {
      font-size: 0.75rem;
      font-weight: 700;
      background: #f1f5f9;
      color: #475569;
      padding: 3px 8px;
      border-radius: 4px;
    }

    /* 一站式自动化制作流程 */
    .step-grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .step-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 20px;
      position: relative;
    }

    .step-badge {
      font-size: 1.6rem;
      font-weight: 900;
      color: var(--accent);
      margin-bottom: 10px;
    }

    .step-title {
      font-size: 1.15rem;
      font-weight: 800;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .step-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 行业解决方案与网络 */
    .solution-tabs-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .solution-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
    }

    .solution-card h3 {
      font-size: 1.2rem;
      font-weight: 800;
      margin-bottom: 10px;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .solution-card ul {
      list-style: none;
      margin-top: 14px;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .solution-card li {
      font-size: 0.9rem;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .solution-card li::before {
      content: "•";
      color: var(--primary);
      font-weight: 900;
      font-size: 1.2rem;
    }

    /* 宣传图与案例图展示区 */
    .gallery-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 24px;
      align-items: center;
      margin-top: 36px;
    }

    .gallery-item {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 12px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
    }

    .gallery-item img {
      border-radius: var(--radius-sm);
      width: 100%;
      object-fit: cover;
    }

    .gallery-sub-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 24px;
    }

    /* 对比评测板块 */
    .evaluation-box {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 2px solid #dbeafe;
      padding: 40px;
      box-shadow: var(--shadow-md);
    }

    .eval-highlight-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 20px;
      padding-bottom: 24px;
      border-bottom: 1px solid var(--border-color);
      margin-bottom: 30px;
    }

    .rating-badge-group {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .score-circle {
      width: 72px;
      height: 72px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--secondary) 0%, var(--accent) 100%);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.6rem;
      font-weight: 900;
      box-shadow: 0 4px 15px rgba(255, 59, 48, 0.35);
    }

    .stars-desc h3 {
      font-size: 1.3rem;
      font-weight: 800;
      color: var(--text-main);
    }

    .stars-desc p {
      font-size: 0.95rem;
      color: var(--text-muted);
    }

    .stars-visual {
      color: #ff9800;
      font-size: 1.3rem;
      font-weight: 900;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
    }

    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.95rem;
    }

    .eval-table th {
      background: #f8fafc;
      color: #1e293b;
      padding: 14px 18px;
      font-weight: 800;
      border-bottom: 2px solid var(--border-color);
    }

    .eval-table td {
      padding: 16px 18px;
      border-bottom: 1px solid #f1f5f9;
      color: #334155;
    }

    .eval-table tr:hover td {
      background-color: #f8faff;
    }

    .table-tag-win {
      display: inline-block;
      padding: 4px 10px;
      background: #eff6ff;
      color: var(--primary);
      font-weight: 800;
      border-radius: 4px;
      border: 1px solid #bfdbfe;
    }

    /* Token 比价板块 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .pricing-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 24px;
      text-align: center;
      position: relative;
      transition: var(--transition);
    }

    .pricing-card.featured {
      border: 2px solid var(--primary);
      box-shadow: var(--shadow-hover);
    }

    .pricing-card.featured::after {
      content: "算力王推";
      position: absolute;
      top: -12px;
      right: 20px;
      background: linear-gradient(90deg, var(--secondary), var(--accent));
      color: #ffffff;
      font-size: 0.75rem;
      font-weight: 800;
      padding: 2px 10px;
      border-radius: 999px;
    }

    .pricing-card h3 {
      font-size: 1.3rem;
      font-weight: 800;
      margin-bottom: 8px;
    }

    .price-value {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary);
      margin: 16px 0;
    }

    .price-features {
      list-style: none;
      text-align: left;
      margin: 20px 0;
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    /* 真实用户评价 6 条 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-user-info {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-top: 18px;
      padding-top: 14px;
      border-top: 1px solid #f1f5f9;
    }

    .user-avatar-initial {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: linear-gradient(135deg, #0052ff, #7928ca);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
    }

    .user-role-wrap h4 {
      font-size: 0.95rem;
      font-weight: 800;
      color: var(--text-main);
    }

    .user-role-wrap p {
      font-size: 0.8rem;
      color: #64748b;
    }

    .review-quote {
      font-size: 0.95rem;
      color: #334155;
      line-height: 1.65;
      font-style: italic;
    }

    /* 需求匹配表单与联系 */
    .matching-form-wrap {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }

    .form-grid-2 {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }

    .form-group {
      margin-bottom: 20px;
    }

    .form-group.full {
      grid-column: span 2;
    }

    .form-label {
      display: block;
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      font-size: 0.95rem;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      background-color: #f8fafc;
      color: var(--text-main);
      transition: var(--transition);
    }

    .form-control:focus {
      outline: none;
      border-color: var(--primary);
      background-color: #ffffff;
      box-shadow: 0 0 0 3px rgba(0, 82, 255, 0.15);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 110px;
    }

    /* 常见问题 FAQ 手风琴 */
    .faq-accordion {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-question {
      padding: 18px 24px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-weight: 700;
      font-size: 1.05rem;
      color: var(--text-main);
      user-select: none;
    }

    .faq-question:hover {
      color: var(--primary);
    }

    .faq-icon {
      font-size: 1.2rem;
      transition: transform 0.25s ease;
      color: #94a3b8;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #fafcff;
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.7;
    }

    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 16px 24px 22px;
      border-top: 1px solid #edf2f7;
    }

    .faq-item.active .faq-icon {
      transform: rotate(45deg);
      color: var(--primary);
    }

    /* 行业资讯与百科 */
    .news-article-section {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px;
      margin-top: 24px;
    }

    .news-links-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
      gap: 12px;
      margin-top: 16px;
    }

    .news-link-btn {
      display: block;
      padding: 10px 14px;
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-sm);
      color: #334155;
      font-size: 0.88rem;
      font-weight: 600;
      text-align: center;
      transition: var(--transition);
    }

    .news-link-btn:hover {
      background: #eff6ff;
      color: var(--primary);
      border-color: #bfdbfe;
    }

    /* 页脚 */
    .site-footer {
      background-color: #0f172a;
      color: #94a3b8;
      padding: 64px 0 24px;
      border-top: 4px solid var(--primary);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 48px;
    }

    .footer-brand h3 {
      color: #ffffff;
      font-size: 1.4rem;
      font-weight: 800;
      margin-bottom: 14px;
    }

    .footer-brand p {
      font-size: 0.92rem;
      line-height: 1.7;
      margin-bottom: 20px;
      color: #94a3b8;
    }

    .footer-col h4 {
      color: #ffffff;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 18px;
    }

    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-links-list a {
      color: #94a3b8;
      font-size: 0.9rem;
      transition: var(--transition);
    }

    .footer-links-list a:hover {
      color: #ffffff;
      padding-left: 4px;
    }

    .qr-container {
      display: flex;
      align-items: center;
      gap: 16px;
      background: #1e293b;
      padding: 14px;
      border-radius: var(--radius-sm);
    }

    .qr-container img {
      width: 80px;
      height: 80px;
      border-radius: 6px;
      background: #ffffff;
    }

    .qr-desc {
      font-size: 0.85rem;
      line-height: 1.5;
      color: #cbd5e1;
    }

    .footer-friends-bar {
      padding: 24px 0;
      border-top: 1px solid #1e293b;
      border-bottom: 1px solid #1e293b;
      margin-bottom: 24px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
      font-size: 0.88rem;
    }

    .footer-friends-bar span {
      color: #ffffff;
      font-weight: 700;
    }

    .footer-friends-bar a {
      color: #94a3b8;
      margin-right: 12px;
      transition: var(--transition);
    }

    .footer-friends-bar a:hover {
      color: #38bdf8;
    }

    .footer-bottom-copy {
      text-align: center;
      font-size: 0.85rem;
      color: #64748b;
    }

    /* 浮动组件与返回顶部 */
    .floating-widget-bar {
      position: fixed;
      right: 20px;
      bottom: 30px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 999;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
      border: 1px solid #e2e8f0;
      cursor: pointer;
      font-weight: 900;
      font-size: 1.1rem;
      transition: var(--transition);
    }

    .float-btn:hover {
      background: var(--primary);
      color: #ffffff;
      transform: translateY(-3px);
    }

    /* 响应式样式规范 */
    @media (max-width: 1024px) {
      .cards-grid-3,
      .step-grid-4,
      .solution-tabs-grid,
      .reviews-grid,
      .token-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .gallery-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-btn {
        display: block;
      }

      .nav-links {
        display: none;
        position: absolute;
        top: 76px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.08);
        border-top: 1px solid var(--border-color);
        gap: 0;
      }

      .nav-links.active {
        display: flex;
      }

      .nav-links a {
        width: 100%;
        padding: 12px 16px;
      }

      .hero-stats-row,
      .cards-grid-3,
      .step-grid-4,
      .solution-tabs-grid,
      .reviews-grid,
      .token-grid,
      .form-grid-2,
      .about-grid {
        grid-template-columns: 1fr;
      }

      .form-group.full {
        grid-column: span 1;
      }

      .footer-grid {
        grid-template-columns: 1fr;
      }

      .section-wrap {
        padding: 48px 0;
      }

      .eval-highlight-header {
        flex-direction: column;
        align-items: flex-start;
      }
    }