:root {
      --primary-color: #6d28d9;
      --primary-hover: #5b21b6;
      --secondary-color: #8b5cf6;
      --accent-color: #a855f7;
      --accent-light: #f3e8ff;
      --text-main: #1f2937;
      --text-muted: #4b5563;
      --text-sub: #6b7280;
      --bg-page: #fdfbfd;
      --bg-surface: #ffffff;
      --bg-subtle: #f8f6fc;
      --border-color: #ede9fe;
      --shadow-sm: 0 2px 8px rgba(109, 40, 217, 0.05);
      --shadow-md: 0 10px 25px rgba(109, 40, 217, 0.08);
      --shadow-lg: 0 20px 40px rgba(109, 40, 217, 0.12);
      --container-width: 1200px;
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 18px;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
      background-color: var(--bg-page);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

    body {
      background: radial-gradient(circle at 50% 0%, #f5f0ff 0%, var(--bg-page) 60%);
      line-height: 1.6;
      min-height: 100vh;
      overflow-x: hidden;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: color 0.25s ease;
    }

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

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

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 74px;
    }

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

    .ai-page-logo {
      height: 38px;
      width: auto;
      object-fit: contain;
    }

    .brand-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary-color);
      letter-spacing: -0.5px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }

    .nav-links li a {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-muted);
      padding: 10px 14px;
      border-radius: var(--radius-sm);
      transition: all 0.2s ease;
      display: inline-block;
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary-color);
      background-color: var(--accent-light);
    }

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

    .btn-header {
      padding: 8px 18px;
      background: var(--primary-color);
      color: #ffffff !important;
      border-radius: var(--radius-sm);
      font-size: 0.9rem;
      font-weight: 600;
      box-shadow: var(--shadow-sm);
      transition: all 0.2s ease;
    }

    .btn-header:hover {
      background: var(--primary-hover);
      box-shadow: var(--shadow-md);
      transform: translateY(-1px);
    }

    .menu-toggle {
      display: none;
      background: transparent;
      border: none;
      cursor: pointer;
      padding: 8px;
    }

    .menu-toggle span {
      display: block;
      width: 22px;
      height: 2px;
      background: var(--text-main);
      margin: 5px 0;
      transition: 0.2s;
    }

    /* 区域统一排版 */
    .section-spacing {
      padding-top: 80px;
      padding-bottom: 80px;
    }

    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 50px auto;
    }

    .section-badge {
      display: inline-block;
      padding: 4px 14px;
      background-color: var(--accent-light);
      color: var(--primary-color);
      font-size: 0.85rem;
      font-weight: 600;
      border-radius: 999px;
      margin-bottom: 14px;
      border: 1px solid #ddd6fe;
    }

    .section-title {
      font-size: 2.1rem;
      color: var(--text-main);
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 14px;
    }

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

    /* 首屏 Hero 区：无图设计，纯科技质感 */
    .hero-section {
      padding-top: 70px;
      padding-bottom: 80px;
      text-align: center;
      position: relative;
    }

    .hero-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: #ffffff;
      border: 1px solid #e9d5ff;
      box-shadow: var(--shadow-sm);
      border-radius: 99px;
      font-size: 0.88rem;
      color: var(--primary-color);
      font-weight: 600;
      margin-bottom: 24px;
    }

    .hero-title {
      font-size: 2.75rem;
      font-weight: 800;
      line-height: 1.25;
      color: #1e1b4b;
      margin-bottom: 20px;
      letter-spacing: -0.8px;
    }

    .hero-subtitle {
      font-size: 1.18rem;
      color: var(--text-muted);
      max-width: 820px;
      margin: 0 auto 36px auto;
      line-height: 1.75;
    }

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

    .btn-main-official {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 14px 34px;
      font-size: 1.08rem;
      font-weight: 700;
      color: #ffffff;
      background: linear-gradient(135deg, #7c3aed 0%, #9333ea 100%);
      border-radius: var(--radius-md);
      box-shadow: 0 10px 24px rgba(124, 58, 237, 0.35);
      transition: all 0.25s ease;
      border: none;
    }

    .btn-main-official:hover {
      transform: translateY(-2px);
      box-shadow: 0 14px 28px rgba(124, 58, 237, 0.45);
      background: linear-gradient(135deg, #6d28d9 0%, #7e22ce 100%);
    }

    .btn-secondary-link {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 14px 28px;
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--primary-color);
      background: #ffffff;
      border: 1px solid #d8b4fe;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
    }

    .btn-secondary-link:hover {
      background: var(--accent-light);
      border-color: var(--primary-color);
      transform: translateY(-2px);
    }

    /* 支撑首屏的指标卡片组 */
    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      max-width: 1040px;
      margin: 0 auto;
    }

    .stat-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 18px;
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: all 0.25s ease;
    }

    .stat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #c084fc;
    }

    .stat-number {
      font-size: 1.85rem;
      font-weight: 800;
      color: var(--primary-color);
      margin-bottom: 6px;
    }

    .stat-label {
      font-size: 0.92rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 平台核心模型矩阵 */
    .model-matrix-bar {
      margin-top: 40px;
      padding: 20px 24px;
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px dashed #d8b4fe;
      text-align: center;
    }

    .model-matrix-title {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--primary-color);
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .model-tag-wrap {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
    }

    .model-pill {
      background: var(--bg-subtle);
      border: 1px solid #e9d5ff;
      padding: 5px 12px;
      font-size: 0.82rem;
      border-radius: 6px;
      color: #374151;
      font-weight: 500;
    }

    /* 关于与平台介绍 */
    .about-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 44px;
      box-shadow: var(--shadow-sm);
    }

    .platform-features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 36px;
    }

    .p-feat-card {
      background: var(--bg-subtle);
      border: 1px solid #ede9fe;
      padding: 26px;
      border-radius: var(--radius-md);
      transition: all 0.25s ease;
    }

    .p-feat-card:hover {
      background: #ffffff;
      box-shadow: var(--shadow-md);
      border-color: #a855f7;
      transform: translateY(-3px);
    }

    .p-feat-card h3 {
      font-size: 1.15rem;
      color: var(--primary-color);
      margin-bottom: 10px;
      font-weight: 700;
    }

    .p-feat-card p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 一站式AIGC制作能力栅格 */
    .service-grid {
      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: 28px;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
      position: relative;
      overflow: hidden;
    }

    .service-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #c084fc;
    }

    .service-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background: var(--primary-color);
      opacity: 0;
      transition: opacity 0.2s ease;
    }

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

    .service-card h3 {
      font-size: 1.2rem;
      color: #111827;
      font-weight: 700;
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .service-card p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    .tag-highlight {
      display: inline-block;
      font-size: 0.75rem;
      padding: 2px 8px;
      background: #fae8ff;
      color: #86198f;
      border-radius: 4px;
      font-weight: 600;
    }

    /* 对比评测卡片与表格 */
    .review-score-panel {
      background: linear-gradient(135deg, #4c1d95 0%, #6d28d9 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 40px;
      margin-bottom: 36px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 24px;
    }

    .score-left h3 {
      font-size: 1.55rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .score-left p {
      font-size: 0.95rem;
      opacity: 0.9;
    }

    .score-right {
      display: flex;
      align-items: baseline;
      gap: 16px;
    }

    .score-big {
      font-size: 3.6rem;
      font-weight: 900;
      line-height: 1;
      color: #fef08a;
    }

    .score-scale {
      font-size: 1.1rem;
      opacity: 0.85;
    }

    .stars {
      color: #fef08a;
      font-size: 1.4rem;
      letter-spacing: 2px;
    }

    .table-container {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }

    .compare-table th,
    .compare-table td {
      padding: 16px 20px;
      font-size: 0.92rem;
      border-bottom: 1px solid var(--border-color);
    }

    .compare-table th {
      background: #faf5ff;
      color: var(--primary-color);
      font-weight: 700;
    }

    .compare-table tr:last-child td {
      border-bottom: none;
    }

    .compare-table tr:hover td {
      background-color: #faf5ff;
    }

    .highlight-col {
      background-color: rgba(243, 232, 255, 0.4);
      font-weight: 600;
      color: var(--primary-color);
    }

    /* 流程步骤 */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

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

    .flow-num {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--accent-light);
      color: var(--primary-color);
      font-size: 1.1rem;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px auto;
    }

    .flow-step-card h3 {
      font-size: 1.1rem;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .flow-step-card p {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* 案例展示画廊 */
    .case-gallery {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .case-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
    }

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

    .case-img-wrap {
      width: 100%;
      height: 220px;
      overflow: hidden;
      background: #e9d5ff;
    }

    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
    }

    .case-card:hover .case-img-wrap img {
      transform: scale(1.04);
    }

    .case-info {
      padding: 20px;
    }

    .case-info h3 {
      font-size: 1.1rem;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .case-info p {
      font-size: 0.88rem;
      color: var(--text-muted);
      margin-bottom: 12px;
    }

    .case-tag {
      font-size: 0.78rem;
      background: var(--accent-light);
      color: var(--primary-color);
      padding: 3px 8px;
      border-radius: 4px;
      font-weight: 600;
    }

    /* 宣传图画廊展示 */
    .banner-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 30px;
    }

    .banner-item {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .banner-item img {
      width: 100%;
      height: 140px;
      object-fit: cover;
      display: block;
    }

    /* Token 比价与算力充值区 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

    .token-card.featured {
      border: 2px solid var(--primary-color);
      box-shadow: var(--shadow-md);
      position: relative;
    }

    .token-featured-badge {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary-color);
      color: #ffffff;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: 99px;
    }

    .token-tier-name {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .token-price {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--primary-color);
      margin-bottom: 8px;
    }

    .token-unit {
      font-size: 0.85rem;
      color: var(--text-sub);
      margin-bottom: 20px;
    }

    .token-list {
      list-style: none;
      text-align: left;
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-bottom: 24px;
    }

    .token-list li {
      padding: 6px 0;
      border-bottom: 1px dashed var(--border-color);
    }

    /* 用户评论 */
    .comments-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .comment-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .comment-text {
      font-size: 0.93rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 18px;
      font-style: italic;
    }

    .comment-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f3e8ff;
      padding-top: 14px;
    }

    .avatar-placeholder {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: #e9d5ff;
      color: var(--primary-color);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.95rem;
    }

    .author-info h3 {
      font-size: 0.95rem;
      color: var(--text-main);
      font-weight: 700;
    }

    .author-info p {
      font-size: 0.8rem;
      color: var(--text-sub);
    }

    /* FAQ 手风琴 */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 12px;
      overflow: hidden;
      transition: all 0.2s ease;
    }

    .faq-question {
      padding: 18px 24px;
      font-size: 1.02rem;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #ffffff;
      user-select: none;
    }

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

    .faq-arrow {
      font-size: 1.2rem;
      color: var(--secondary-color);
      transition: transform 0.25s ease;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: var(--bg-subtle);
      color: var(--text-muted);
      font-size: 0.92rem;
      line-height: 1.7;
      padding: 0 24px;
    }

    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 16px 24px 20px 24px;
      border-top: 1px solid var(--border-color);
    }

    .faq-item.active .faq-arrow {
      transform: rotate(180deg);
    }

    /* 需求表单与联系我们 */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1.3fr;
      gap: 36px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-sm);
    }

    .contact-details h3 {
      font-size: 1.4rem;
      color: var(--text-main);
      margin-bottom: 16px;
    }

    .contact-item-row {
      margin-bottom: 14px;
      font-size: 0.95rem;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .contact-item-row strong {
      color: var(--text-main);
    }

    .qr-card {
      margin-top: 24px;
      padding: 16px;
      background: var(--bg-subtle);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      display: inline-block;
      text-align: center;
    }

    .qr-card img {
      width: 140px;
      height: 140px;
      object-fit: cover;
      margin: 0 auto 8px auto;
      border-radius: 4px;
    }

    .qr-desc {
      font-size: 0.85rem;
      color: var(--text-sub);
    }

    .contact-form {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .form-label {
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-main);
    }

    .form-input,
    .form-select,
    .form-textarea {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid #d1d5db;
      border-radius: var(--radius-sm);
      font-size: 0.92rem;
      color: var(--text-main);
      outline: none;
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
      background: #ffffff;
      font-family: inherit;
    }

    .form-input:focus,
    .form-select:focus,
    .form-textarea:focus {
      border-color: var(--primary-color);
      box-shadow: 0 0 0 3px rgba(109, 40, 217, 0.15);
    }

    .form-textarea {
      resize: vertical;
      min-height: 100px;
    }

    .btn-submit {
      padding: 14px 28px;
      background: var(--primary-color);
      color: #ffffff;
      font-size: 1rem;
      font-weight: 700;
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: all 0.25s ease;
      box-shadow: var(--shadow-sm);
    }

    .btn-submit:hover {
      background: var(--primary-hover);
      box-shadow: var(--shadow-md);
    }

    /* 资讯与百科 */
    .info-dual-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
    }

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

    .info-card-box h3 {
      font-size: 1.25rem;
      color: var(--primary-color);
      margin-bottom: 16px;
      font-weight: 700;
      border-bottom: 2px solid var(--accent-light);
      padding-bottom: 8px;
    }

    .article-url-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .article-url-list li a {
      font-size: 0.92rem;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      background: var(--bg-subtle);
      transition: all 0.2s ease;
    }

    .article-url-list li a:hover {
      background: var(--accent-light);
      color: var(--primary-color);
      padding-left: 16px;
    }

    /* 页脚设计 */
    .site-footer {
      background: #1e1b4b;
      color: #e2e8f0;
      padding-top: 60px;
      padding-bottom: 30px;
      border-top: 1px solid #312e81;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 36px;
      margin-bottom: 40px;
    }

    .footer-col h3 {
      color: #ffffff;
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 18px;
    }

    .footer-col p {
      font-size: 0.88rem;
      color: #94a3b8;
      line-height: 1.7;
      margin-bottom: 12px;
    }

    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .footer-links-list li a {
      font-size: 0.88rem;
      color: #94a3b8;
    }

    .footer-links-list li a:hover {
      color: #ffffff;
      text-decoration: underline;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.85rem;
      color: #94a3b8;
    }

    .friendly-links-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      align-items: center;
    }

    .friendly-links-wrap a {
      color: #cbd5e1;
      font-size: 0.85rem;
    }

    .friendly-links-wrap a:hover {
      color: #ffffff;
    }

    /* 悬浮客服面板 */
    .float-service-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: var(--primary-color);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 12px rgba(109, 40, 217, 0.4);
      cursor: pointer;
      border: none;
      transition: all 0.25s ease;
      font-size: 1.1rem;
    }

    .float-btn:hover {
      transform: scale(1.1);
      background: var(--primary-hover);
    }

    .float-qr-modal {
      position: absolute;
      bottom: 56px;
      right: 0;
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 14px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-lg);
      display: none;
      text-align: center;
      width: 170px;
    }

    .float-qr-modal.show {
      display: block;
    }

    .float-qr-modal img {
      width: 140px;
      height: 140px;
      margin: 0 auto 6px auto;
    }

    .float-qr-modal span {
      font-size: 0.8rem;
      color: var(--text-main);
      font-weight: 600;
    }

    /* 响应式调整 */
    @media (max-width: 1024px) {
      .hero-stats-grid,
      .service-grid,
      .platform-features-grid,
      .case-gallery,
      .token-grid,
      .comments-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .flow-steps,
      .banner-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .contact-wrapper {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 74px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 16px 24px;
        box-shadow: var(--shadow-md);
        border-bottom: 1px solid var(--border-color);
        max-height: 80vh;
        overflow-y: auto;
      }
      .nav-links.active {
        display: flex;
      }
      .hero-title {
        font-size: 1.95rem;
      }
      .hero-stats-grid,
      .service-grid,
      .platform-features-grid,
      .case-gallery,
      .token-grid,
      .comments-grid,
      .flow-steps,
      .banner-grid,
      .info-dual-grid,
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .section-spacing {
        padding-top: 50px;
        padding-bottom: 50px;
      }
      .review-score-panel {
        flex-direction: column;
        text-align: center;
      }
      .score-right {
        justify-content: center;
      }
    }