:root {
      --bg-page: #fbfbf9;
      --bg-card: #ffffff;
      --text-main: #181d27;
      --text-muted: #535862;
      --primary: #4f46e5;
      --primary-hover: #4338ca;
      --graffiti-yellow: #fde047;
      --graffiti-orange: #fb923c;
      --graffiti-pink: #f43f5e;
      --graffiti-cyan: #06b6d4;
      --graffiti-green: #10b981;
      --graffiti-purple: #8b5cf6;
      --border-dark: #181d27;
      --shadow-doodle: 4px 4px 0px #181d27;
      --shadow-doodle-sm: 2px 2px 0px #181d27;
      --shadow-doodle-lg: 6px 6px 0px #181d27;
      --radius-badge: 10px;
      --radius-card: 16px;
      --radius-btn: 12px;
      --transition-base: all 0.25s ease;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.6;
      background-image: 
        radial-gradient(#e2e8f0 1.5px, transparent 1.5px),
        radial-gradient(#fed7aa 1px, transparent 1px);
      background-size: 32px 32px, 64px 64px;
      background-position: 0 0, 16px 16px;
      min-width: 320px;
    }

    /* 统一标准居中容器体系 */
    .container {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 涂鸦风徽章与强调 */
    .doodle-badge {
      display: inline-flex;
      align-items: center;
      padding: 4px 12px;
      font-size: 13px;
      font-weight: 700;
      border: 2px solid var(--border-dark);
      border-radius: 999px;
      box-shadow: var(--shadow-doodle-sm);
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .badge-yellow { background-color: var(--graffiti-yellow); color: var(--border-dark); }
    .badge-cyan { background-color: var(--graffiti-cyan); color: #ffffff; }
    .badge-pink { background-color: var(--graffiti-pink); color: #ffffff; }
    .badge-green { background-color: var(--graffiti-green); color: #ffffff; }
    .badge-purple { background-color: var(--graffiti-purple); color: #ffffff; }

    .highlight-marker {
      background: linear-gradient(180deg, transparent 60%, var(--graffiti-yellow) 60%);
      padding: 0 4px;
      display: inline;
    }

    .doodle-card {
      background: var(--bg-card);
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-doodle);
      padding: 24px;
      transition: var(--transition-base);
      position: relative;
    }

    .doodle-card:hover {
      transform: translate(-2px, -2px);
      box-shadow: var(--shadow-doodle-lg);
    }

    /* 按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      padding: 12px 24px;
      font-size: 15px;
      border-radius: var(--radius-btn);
      text-decoration: none;
      cursor: pointer;
      border: 2px solid var(--border-dark);
      transition: var(--transition-base);
      box-shadow: var(--shadow-doodle-sm);
      line-height: 1.2;
    }

    .btn:hover {
      transform: translate(-2px, -2px);
      box-shadow: var(--shadow-doodle);
    }

    .btn:active {
      transform: translate(0, 0);
      box-shadow: var(--shadow-doodle-sm);
    }

    .btn-primary {
      background-color: var(--graffiti-yellow);
      color: var(--border-dark);
    }
    .btn-primary:hover {
      background-color: #facc15;
    }

    .btn-action {
      background-color: var(--primary);
      color: #ffffff;
    }
    .btn-action:hover {
      background-color: var(--primary-hover);
    }

    .btn-outline {
      background-color: #ffffff;
      color: var(--border-dark);
    }
    .btn-outline:hover {
      background-color: #f8fafc;
    }

    /* 顶部导航 */
    header.site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(251, 251, 249, 0.96);
      backdrop-filter: blur(10px);
      border-bottom: 2px solid var(--border-dark);
    }

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

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      text-decoration: none;
      color: var(--border-dark);
      font-weight: 900;
      font-size: 20px;
    }

    .brand-logo img.ai-page-logo {
      max-height: 42px;
      width: auto;
      display: block;
    }

    /* 严格按照要求：.nav-links 的 gap 属性设置为 0 */
    .nav-links {
      display: flex;
      gap: 0;
      list-style: none;
      align-items: center;
      margin: 0;
      padding: 0;
    }

    .nav-links li {
      display: inline-block;
      margin: 0;
      padding: 0;
    }

    .nav-links a {
      display: inline-block;
      padding: 8px 12px;
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
      text-decoration: none;
      border-radius: 8px;
      transition: var(--transition-base);
    }

    .nav-links a:hover {
      background-color: var(--graffiti-yellow);
      color: var(--border-dark);
    }

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

    .mobile-menu-toggle {
      display: none;
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: 8px;
      padding: 8px 12px;
      font-size: 18px;
      cursor: pointer;
      box-shadow: var(--shadow-doodle-sm);
    }

    /* 章节基础排版 */
    section {
      padding: 70px 0;
      position: relative;
    }

    .section-head {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 48px auto;
    }

    .section-title {
      font-size: 32px;
      font-weight: 900;
      color: var(--border-dark);
      margin-bottom: 14px;
      position: relative;
      display: inline-block;
    }

    .section-subtitle {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* Hero 首屏 - 严格禁止图片 */
    #hero {
      padding: 80px 0 60px 0;
      text-align: center;
      background: radial-gradient(circle at 50% 30%, rgba(254, 240, 138, 0.4), transparent 70%);
      border-bottom: 2px solid var(--border-dark);
    }

    .hero-content {
      max-width: 900px;
      margin: 0 auto;
    }

    /* H1 控制在20字以内 */
    .hero-title {
      font-size: 42px;
      line-height: 1.25;
      font-weight: 900;
      color: var(--border-dark);
      margin: 16px 0 20px 0;
      letter-spacing: -0.5px;
    }

    .hero-desc {
      font-size: 18px;
      color: var(--text-muted);
      max-width: 760px;
      margin: 0 auto 32px auto;
      line-height: 1.8;
    }

    .hero-btn-group {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 16px;
      margin-bottom: 40px;
    }

    .hero-stats-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 40px;
    }

    .stat-item {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: 12px;
      padding: 16px 12px;
      box-shadow: var(--shadow-doodle-sm);
    }

    .stat-num {
      font-size: 26px;
      font-weight: 900;
      color: var(--primary);
    }

    .stat-label {
      font-size: 13px;
      color: var(--text-muted);
      font-weight: 600;
      margin-top: 4px;
    }

    /* 宣传图画廊 (首屏后展示) */
    .banner-gallery-section {
      padding: 40px 0 60px 0;
      background: #ffffff;
      border-bottom: 2px solid var(--border-dark);
    }

    .banner-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .banner-item {
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-card);
      overflow: hidden;
      box-shadow: var(--shadow-doodle-sm);
      background: var(--bg-card);
      aspect-ratio: 16/9;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .banner-item img.ai-page-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    /* 平台介绍与关于我们 */
    .about-platform-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .about-text h3 {
      font-size: 26px;
      font-weight: 800;
      margin-bottom: 16px;
      color: var(--border-dark);
    }

    .about-text p {
      color: var(--text-muted);
      margin-bottom: 20px;
      font-size: 15px;
      line-height: 1.8;
    }

    .about-feature-list {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-top: 20px;
    }

    .about-feature-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      font-weight: 700;
      color: var(--border-dark);
    }

    .about-feature-icon {
      width: 22px;
      height: 22px;
      border-radius: 50%;
      background: var(--graffiti-yellow);
      border: 1.5px solid var(--border-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 11px;
      font-weight: 900;
      flex-shrink: 0;
    }

    .about-image-card {
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-card);
      overflow: hidden;
      box-shadow: var(--shadow-doodle);
      background: #ffffff;
      padding: 12px;
    }

    .about-image-card img {
      width: 100%;
      height: auto;
      border-radius: 10px;
      display: block;
      border: 1px solid #e2e8f0;
    }

    /* 支持模型轮播条/标签云 */
    .model-pill-strip {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 24px;
    }

    .model-tag {
      padding: 6px 14px;
      background: #ffffff;
      border: 1.5px solid var(--border-dark);
      border-radius: 8px;
      font-size: 13px;
      font-weight: 700;
      box-shadow: var(--shadow-doodle-sm);
      transition: var(--transition-base);
    }

    .model-tag:hover {
      background: var(--graffiti-cyan);
      color: #ffffff;
      transform: translateY(-2px);
    }

    /* AIGC 服务矩阵 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      border-top: 4px solid var(--graffiti-yellow);
    }

    .service-card:nth-child(2n) {
      border-top-color: var(--graffiti-cyan);
    }

    .service-card:nth-child(3n) {
      border-top-color: var(--graffiti-pink);
    }

    .service-icon {
      font-size: 28px;
      margin-bottom: 12px;
      display: inline-block;
    }

    .service-card h4 {
      font-size: 19px;
      font-weight: 800;
      margin-bottom: 8px;
      color: var(--border-dark);
    }

    .service-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 一站式制作 & 横版工作流 */
    .workflow-panel {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-doodle);
      padding: 32px;
      margin-top: 30px;
    }

    .workflow-img-box {
      border: 2px solid var(--border-dark);
      border-radius: 12px;
      overflow: hidden;
      margin-top: 24px;
      box-shadow: var(--shadow-doodle-sm);
    }

    .workflow-img-box img {
      width: 100%;
      height: auto;
      display: block;
    }

    /* 行业方案 */
    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .solution-card h4 {
      font-size: 18px;
      font-weight: 800;
      margin-bottom: 10px;
      color: var(--border-dark);
    }

    .solution-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 标准流程 5 步 */
    .process-timeline {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
    }

    .process-step {
      text-align: center;
      padding: 20px 12px;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-card);
      background: #ffffff;
      box-shadow: var(--shadow-doodle-sm);
      position: relative;
    }

    .step-number {
      width: 38px;
      height: 38px;
      background: var(--graffiti-yellow);
      border: 2px solid var(--border-dark);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
      font-weight: 900;
      margin: 0 auto 12px auto;
    }

    .process-step h5 {
      font-size: 16px;
      font-weight: 800;
      margin-bottom: 6px;
    }

    .process-step p {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 对比评测 - 突出 9.9分与五星推荐 */
    .review-score-hero {
      background: #ffffff;
      border: 3px solid var(--border-dark);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-doodle);
      padding: 28px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 30px;
      flex-wrap: wrap;
      gap: 20px;
    }

    .score-badge-area {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .score-circle {
      width: 86px;
      height: 86px;
      background: var(--graffiti-yellow);
      border: 2.5px solid var(--border-dark);
      border-radius: 50%;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-doodle-sm);
    }

    .score-value {
      font-size: 28px;
      font-weight: 900;
      line-height: 1;
      color: var(--border-dark);
    }

    .score-total {
      font-size: 11px;
      font-weight: 700;
      color: var(--border-dark);
    }

    .score-info h4 {
      font-size: 22px;
      font-weight: 900;
      margin-bottom: 6px;
    }

    .score-stars {
      color: #f59e0b;
      font-size: 20px;
      letter-spacing: 2px;
    }

    .comparison-table-wrapper {
      width: 100%;
      overflow-x: auto;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-doodle);
      background: #ffffff;
    }

    table.comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
      min-width: 680px;
    }

    table.comparison-table th, 
    table.comparison-table td {
      padding: 14px 18px;
      border-bottom: 1px solid #e2e8f0;
    }

    table.comparison-table th {
      background: #f8fafc;
      font-weight: 800;
      color: var(--border-dark);
      border-bottom: 2px solid var(--border-dark);
    }

    table.comparison-table th.highlight-col {
      background: #fef9c3;
    }

    table.comparison-table td.highlight-col {
      background: #fffbeb;
      font-weight: 700;
      color: var(--border-dark);
    }

    /* Token 比价表 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .token-card {
      border-left: 6px solid var(--primary);
    }

    .token-card h4 {
      font-size: 18px;
      font-weight: 800;
      margin-bottom: 6px;
    }

    .token-price-row {
      display: flex;
      align-items: baseline;
      gap: 10px;
      margin: 12px 0;
    }

    .official-price {
      font-size: 13px;
      color: var(--text-muted);
      text-decoration: line-through;
    }

    .platform-price {
      font-size: 24px;
      font-weight: 900;
      color: var(--graffiti-pink);
    }

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

    .review-card {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-doodle-sm);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-text {
      font-size: 14px;
      color: var(--text-main);
      line-height: 1.7;
      margin-bottom: 16px;
    }

    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1.5px dashed #cbd5e1;
      padding-top: 14px;
    }

    .reviewer-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      border: 2px solid var(--border-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 15px;
      background: var(--graffiti-yellow);
    }

    .reviewer-name {
      font-size: 14px;
      font-weight: 800;
      color: var(--border-dark);
    }

    .reviewer-role {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 需求表单与联系我们 */
    .contact-form-layout {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 32px;
    }

    .form-panel {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-doodle);
      padding: 32px;
    }

    .form-group {
      margin-bottom: 18px;
    }

    .form-group label {
      display: block;
      font-size: 14px;
      font-weight: 700;
      margin-bottom: 6px;
      color: var(--border-dark);
    }

    .form-control {
      width: 100%;
      padding: 12px 14px;
      font-size: 14px;
      border: 2px solid var(--border-dark);
      border-radius: 8px;
      background: #fbfbf9;
      color: var(--text-main);
      outline: none;
      transition: var(--transition-base);
    }

    .form-control:focus {
      background: #ffffff;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
    }

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

    .contact-info-panel {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .qr-card {
      text-align: center;
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-card);
      padding: 24px;
      box-shadow: var(--shadow-doodle);
    }

    .qr-card img {
      width: 160px;
      height: 160px;
      border: 2px solid var(--border-dark);
      border-radius: 12px;
      display: block;
      margin: 12px auto;
    }

    .info-list-card {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-card);
      padding: 24px;
      box-shadow: var(--shadow-doodle-sm);
    }

    .info-row {
      display: flex;
      margin-bottom: 10px;
      font-size: 14px;
    }

    .info-label {
      width: 110px;
      font-weight: 700;
      color: var(--text-muted);
      flex-shrink: 0;
    }

    .info-val {
      font-weight: 700;
      color: var(--border-dark);
    }

    /* FAQ 折叠面板 */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: 12px;
      box-shadow: var(--shadow-doodle-sm);
      overflow: hidden;
      transition: var(--transition-base);
    }

    .faq-question {
      padding: 18px 24px;
      font-size: 16px;
      font-weight: 800;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
      color: var(--border-dark);
    }

    .faq-toggle-icon {
      font-size: 18px;
      font-weight: 900;
      transition: transform 0.3s ease;
    }

    .faq-answer {
      display: none;
      padding: 0 24px 20px 24px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      border-top: 1px dashed #e2e8f0;
      padding-top: 14px;
    }

    .faq-item.active .faq-answer {
      display: block;
    }

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

    /* AI百科 & 行业资讯 */
    .wiki-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-bottom: 40px;
    }

    .wiki-card h5 {
      font-size: 16px;
      font-weight: 800;
      margin-bottom: 6px;
      color: var(--border-dark);
    }

    .wiki-card p {
      font-size: 13px;
      color: var(--text-muted);
    }

    .article-links-strip {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-card);
      padding: 24px;
      box-shadow: var(--shadow-doodle);
    }

    .article-link-list {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      list-style: none;
      margin-top: 14px;
    }

    .article-link-list a {
      display: inline-block;
      padding: 8px 16px;
      background: #f8fafc;
      border: 1.5px solid var(--border-dark);
      border-radius: 8px;
      font-size: 13px;
      font-weight: 700;
      color: var(--text-main);
      text-decoration: none;
      box-shadow: var(--shadow-doodle-sm);
      transition: var(--transition-base);
    }

    .article-link-list a:hover {
      background: var(--graffiti-yellow);
      transform: translateY(-2px);
    }

    /* 加盟代理 */
    .partner-banner {
      background: linear-gradient(135deg, #fef08a, #fed7aa);
      border: 3px solid var(--border-dark);
      border-radius: var(--radius-card);
      padding: 40px;
      box-shadow: var(--shadow-doodle);
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
    }

    .partner-text h3 {
      font-size: 28px;
      font-weight: 900;
      margin-bottom: 10px;
      color: var(--border-dark);
    }

    .partner-text p {
      font-size: 15px;
      color: var(--border-dark);
      max-width: 650px;
      line-height: 1.7;
    }

    /* 页脚 */
    footer.site-footer {
      background: #ffffff;
      border-top: 3px solid var(--border-dark);
      padding: 48px 0 32px 0;
      margin-top: 40px;
    }

    .footer-content {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 32px;
    }

    .footer-brand p {
      font-size: 14px;
      color: var(--text-muted);
      margin-top: 12px;
      max-width: 400px;
      line-height: 1.7;
    }

    .footer-col h5 {
      font-size: 16px;
      font-weight: 800;
      margin-bottom: 16px;
      color: var(--border-dark);
    }

    .footer-col ul {
      list-style: none;
    }

    .footer-col ul li {
      margin-bottom: 8px;
    }

    .footer-col ul a {
      font-size: 14px;
      color: var(--text-muted);
      text-decoration: none;
      transition: var(--transition-base);
    }

    .footer-col ul a:hover {
      color: var(--primary);
      text-decoration: underline;
    }

    .friend-links-strip {
      border-top: 1.5px dashed #cbd5e1;
      padding-top: 20px;
      margin-bottom: 24px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 12px;
    }

    .friend-links-strip span {
      font-size: 13px;
      font-weight: 800;
      color: var(--border-dark);
    }

    .friend-links-strip a {
      font-size: 13px;
      color: var(--text-muted);
      text-decoration: none;
      padding: 2px 8px;
      background: #f1f5f9;
      border-radius: 6px;
      border: 1px solid #cbd5e1;
    }

    .friend-links-strip a:hover {
      background: var(--graffiti-yellow);
      color: var(--border-dark);
      border-color: var(--border-dark);
    }

    .footer-bottom {
      border-top: 1px solid #e2e8f0;
      padding-top: 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
      color: var(--text-muted);
      flex-wrap: wrap;
      gap: 12px;
    }

    .ai-page-home-link {
      font-weight: 700;
      color: var(--primary);
      text-decoration: none;
    }

    /* 浮动侧边入口与返回顶部 */
    .floating-widget {
      position: fixed;
      right: 20px;
      bottom: 24px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .floating-btn {
      width: 48px;
      height: 48px;
      border: 2px solid var(--border-dark);
      border-radius: 50%;
      background: #ffffff;
      box-shadow: var(--shadow-doodle);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      cursor: pointer;
      text-decoration: none;
      color: var(--border-dark);
      transition: var(--transition-base);
    }

    .floating-btn:hover {
      background: var(--graffiti-yellow);
      transform: translateY(-3px);
    }

    /* 响应式调整 */
    @media (max-width: 992px) {
      .services-grid, 
      .banner-grid, 
      .reviews-grid, 
      .token-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .solutions-grid, 
      .wiki-grid, 
      .process-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-platform-grid, 
      .contact-form-layout, 
      .footer-content {
        grid-template-columns: 1fr;
      }
      .hero-stats-row {
        grid-template-columns: repeat(2, 1fr);
      }
      .mobile-menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        border-bottom: 2px solid var(--border-dark);
        flex-direction: column;
        padding: 16px 20px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.08);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links a {
        display: block;
        padding: 10px 0;
        border-bottom: 1px dashed #e2e8f0;
      }
    }

    @media (max-width: 640px) {
      .hero-title {
        font-size: 28px;
      }
      .section-title {
        font-size: 24px;
      }
      .services-grid, 
      .banner-grid, 
      .reviews-grid, 
      .token-grid, 
      .solutions-grid, 
      .wiki-grid, 
      .process-timeline,
      .hero-stats-row {
        grid-template-columns: 1fr;
      }
      .partner-banner {
        padding: 24px;
      }
      .btn {
        width: 100%;
      }
      .hero-btn-group {
        flex-direction: column;
      }
    }