:root {
      --primary-color: #ff3366;
      --secondary-color: #6366f1;
      --accent-color: #00d2ff;
      --warm-color: #ff9900;
      --dark-text: #1a1e29;
      --muted-text: #4b5563;
      --light-text: #6b7280;
      --bg-page: #fafbfe;
      --bg-card: #ffffff;
      --bg-tint: #f3f6fc;
      --bg-bright: #fff0f5;
      --border-color: #e5e9f2;
      --border-focus: #ff3366;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 22px;
      --radius-full: 9999px;
      --shadow-sm: 0 4px 12px rgba(25, 30, 60, 0.05);
      --shadow-md: 0 10px 25px rgba(25, 30, 60, 0.08);
      --shadow-lg: 0 16px 36px rgba(255, 51, 102, 0.12);
      --transition-fast: 0.25s ease;
    }

    *, *::before, *::after {
      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-page);
      color: var(--dark-text);
      line-height: 1.65;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

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

    ul, ol {
      list-style: none;
    }

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

    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 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);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
    }

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

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

    .logo-wrapper {
      max-width: 150px;
      display: flex;
      align-items: center;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
    }

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

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary-color);
      background: rgba(255, 51, 102, 0.06);
    }

    .nav-actions {
      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: 600;
      border-radius: var(--radius-full);
      border: 1px solid transparent;
      cursor: pointer;
      transition: all var(--transition-fast);
      text-align: center;
      white-space: nowrap;
    }

    .btn-primary {
      background: linear-gradient(135deg, #ff3366 0%, #ff6b3d 100%);
      color: #ffffff;
      box-shadow: 0 4px 15px rgba(255, 51, 102, 0.35);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 22px rgba(255, 51, 102, 0.45);
      color: #ffffff;
    }

    .btn-outline {
      border-color: #6366f1;
      color: #6366f1;
      background: rgba(99, 102, 241, 0.05);
    }

    .btn-outline:hover {
      background: #6366f1;
      color: #ffffff;
      transform: translateY(-2px);
    }

    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      cursor: pointer;
      color: var(--dark-text);
      padding: 6px;
    }

    /* 首屏 Hero：严禁任何图片 */
    .hero-section {
      padding: 70px 0 60px;
      background: radial-gradient(circle at 80% 20%, rgba(255, 51, 102, 0.12) 0%, rgba(99, 102, 241, 0.08) 35%, rgba(250, 251, 254, 1) 70%),
                  linear-gradient(180deg, #fafbfe 0%, #ffffff 100%);
      position: relative;
      border-bottom: 1px solid var(--border-color);
    }

    .hero-layout {
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      max-width: 960px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      padding: 6px 18px;
      background: linear-gradient(90deg, rgba(255, 51, 102, 0.12), rgba(99, 102, 241, 0.12));
      border: 1px solid rgba(255, 51, 102, 0.25);
      border-radius: var(--radius-full);
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--primary-color);
      margin-bottom: 22px;
    }

    .hero-title {
      font-size: 2.8rem;
      line-height: 1.25;
      font-weight: 800;
      color: var(--dark-text);
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-title .highlight {
      background: linear-gradient(120deg, #ff3366, #7c3aed);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 1.18rem;
      color: var(--muted-text);
      max-width: 780px;
      margin-bottom: 34px;
      line-height: 1.75;
    }

    .hero-cta-group {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 18px;
      margin-bottom: 40px;
    }

    .btn-hero-large {
      padding: 15px 36px;
      font-size: 1.1rem;
      font-weight: 700;
      border-radius: var(--radius-full);
    }

    .hero-key-points {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 24px;
      padding: 16px 28px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-sm);
    }

    .point-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--dark-text);
    }

    .point-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--primary-color);
    }

    /* 统计卡片网格 */
    .stat-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 40px;
      width: 100%;
    }

    .stat-card {
      background: #ffffff;
      padding: 24px 20px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    }

    .stat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(99, 102, 241, 0.3);
    }

    .stat-num {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--primary-color);
      margin-bottom: 4px;
    }

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

    /* 通用章节规范 */
    .section-wrap {
      padding: 85px 0;
      border-bottom: 1px solid var(--border-color);
    }

    .section-tint {
      background: var(--bg-tint);
    }

    .section-head {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 55px;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 700;
      text-transform: uppercase;
      color: var(--primary-color);
      letter-spacing: 1px;
      margin-bottom: 10px;
      background: rgba(255, 51, 102, 0.08);
      padding: 4px 14px;
      border-radius: var(--radius-full);
    }

    .section-title {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--dark-text);
      margin-bottom: 14px;
    }

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

    /* 平台介绍 */
    .about-feature-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }

    .feature-card {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      padding: 32px 26px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: all var(--transition-fast);
      position: relative;
      overflow: hidden;
    }

    .feature-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: linear-gradient(90deg, #ff3366, #6366f1);
      opacity: 0;
      transition: opacity var(--transition-fast);
    }

    .feature-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
      border-color: rgba(255, 51, 102, 0.3);
    }

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

    .card-icon-pill {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 52px;
      height: 52px;
      border-radius: 14px;
      background: linear-gradient(135deg, rgba(255, 51, 102, 0.12), rgba(99, 102, 241, 0.12));
      color: var(--primary-color);
      font-size: 1.4rem;
      font-weight: bold;
      margin-bottom: 18px;
    }

    .feature-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--dark-text);
    }

    .feature-card p {
      font-size: 0.94rem;
      color: var(--muted-text);
      line-height: 1.65;
    }

    /* 场景矩阵卡片 */
    .scene-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

    .scene-box {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: all var(--transition-fast);
    }

    .scene-box:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #6366f1;
    }

    .scene-badge {
      display: inline-block;
      font-size: 0.78rem;
      font-weight: 700;
      color: #6366f1;
      background: rgba(99, 102, 241, 0.1);
      padding: 3px 10px;
      border-radius: var(--radius-sm);
      margin-bottom: 10px;
    }

    .scene-box h3 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--dark-text);
      margin-bottom: 8px;
    }

    .scene-box p {
      font-size: 0.9rem;
      color: var(--muted-text);
      line-height: 1.6;
    }

    /* 模型生态流体标签 */
    .model-tags-container {
      background: #ffffff;
      padding: 34px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      margin-top: 35px;
    }

    .model-tags-title {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 18px;
      text-align: center;
      color: var(--dark-text);
    }

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

    .model-badge {
      font-size: 0.85rem;
      font-weight: 600;
      padding: 7px 14px;
      border-radius: var(--radius-full);
      background: var(--bg-tint);
      color: var(--dark-text);
      border: 1px solid var(--border-color);
      transition: all var(--transition-fast);
    }

    .model-badge:hover {
      background: var(--primary-color);
      color: #ffffff;
      border-color: var(--primary-color);
      transform: scale(1.05);
    }

    /* 宣传图画廊展示区 */
    .banner-gallery-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
      margin-bottom: 35px;
    }

    .gallery-item {
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-color);
      background: #ffffff;
      transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    }

    .gallery-item:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
    }

    .gallery-item img {
      width: 100%;
      height: 230px;
      object-fit: cover;
      display: block;
    }

    .gallery-caption {
      padding: 14px 18px;
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--dark-text);
    }

    /* 素材展示横排图文 */
    .asset-showcase-grid {
      display: grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap: 22px;
      align-items: stretch;
    }

    .asset-item-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }

    .asset-item-card img {
      width: 100%;
      height: 200px;
      object-fit: cover;
    }

    .asset-card-body {
      padding: 20px;
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .asset-card-body h4 {
      font-size: 1.08rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .asset-card-body p {
      font-size: 0.88rem;
      color: var(--muted-text);
      line-height: 1.55;
    }

    /* 标准流程时间线 */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }

    .step-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 28px 22px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      position: relative;
      transition: all var(--transition-fast);
    }

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

    .step-number {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: linear-gradient(135deg, #ff3366, #ff9900);
      color: #ffffff;
      font-weight: 800;
      font-size: 1.1rem;
      margin-bottom: 16px;
    }

    .step-card h3 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 10px;
    }

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

    /* 评测与对比表格板块 */
    .evaluation-summary-box {
      background: linear-gradient(135deg, #ffffff 0%, #fff6f8 100%);
      border: 2px solid rgba(255, 51, 102, 0.2);
      border-radius: var(--radius-lg);
      padding: 34px;
      box-shadow: var(--shadow-md);
      margin-bottom: 40px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .rating-badge-side {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .score-circle {
      width: 90px;
      height: 90px;
      border-radius: 50%;
      background: linear-gradient(135deg, #ff3366, #ff6b3d);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      color: #ffffff;
      box-shadow: 0 8px 20px rgba(255, 51, 102, 0.3);
    }

    .score-num {
      font-size: 2rem;
      font-weight: 900;
      line-height: 1;
    }

    .score-max {
      font-size: 0.75rem;
      opacity: 0.9;
    }

    .stars-desc h3 {
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--dark-text);
      margin-bottom: 4px;
    }

    .stars-row {
      color: #ff9900;
      font-size: 1.2rem;
      margin-bottom: 6px;
    }

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

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }

    .compare-table th, .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.93rem;
    }

    .compare-table th {
      background: #f8fafc;
      font-weight: 700;
      color: var(--dark-text);
    }

    .compare-table td:nth-child(2) {
      background: rgba(255, 51, 102, 0.03);
      font-weight: 600;
      color: var(--primary-color);
    }

    .tag-highlight {
      display: inline-block;
      padding: 2px 8px;
      background: rgba(255, 51, 102, 0.12);
      color: var(--primary-color);
      border-radius: 4px;
      font-size: 0.82rem;
      font-weight: 700;
    }

    /* Token 比价列表卡片 */
    .token-pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .token-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 30px 24px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: all var(--transition-fast);
      position: relative;
    }

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

    .featured-label {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: linear-gradient(90deg, #ff3366, #6366f1);
      color: #ffffff;
      font-size: 0.78rem;
      font-weight: 700;
      padding: 3px 14px;
      border-radius: var(--radius-full);
    }

    .token-card h3 {
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 12px;
    }

    .token-price {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary-color);
      margin-bottom: 8px;
    }

    .token-price span {
      font-size: 0.9rem;
      color: var(--muted-text);
      font-weight: 500;
    }

    .token-features {
      margin: 20px 0 24px;
      text-align: left;
      font-size: 0.9rem;
      color: var(--muted-text);
      line-height: 2;
    }

    .token-features li::before {
      content: "✓ ";
      color: #10b981;
      font-weight: bold;
    }

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

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

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

    .review-quote {
      font-size: 0.94rem;
      color: var(--dark-text);
      line-height: 1.7;
      margin-bottom: 18px;
      position: relative;
    }

    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px dashed var(--border-color);
      padding-top: 14px;
    }

    .author-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, #6366f1, #a855f7);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.95rem;
    }

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

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

    /* FAQ 折叠手风琴面板 */
    .faq-container {
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 14px;
      overflow: hidden;
      transition: border-color var(--transition-fast);
    }

    .faq-item.active {
      border-color: var(--primary-color);
    }

    .faq-question {
      width: 100%;
      text-align: left;
      padding: 18px 24px;
      background: none;
      border: none;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--dark-text);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }

    .faq-icon {
      font-size: 1.3rem;
      color: var(--primary-color);
      transition: transform var(--transition-fast);
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background: #fafbfe;
    }

    .faq-answer-inner {
      padding: 18px 24px;
      color: var(--muted-text);
      font-size: 0.93rem;
      line-height: 1.7;
      border-top: 1px solid var(--border-color);
    }

    /* 需求匹配表单区 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 36px;
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      padding: 40px;
    }

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

    .form-label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      margin-bottom: 8px;
      color: var(--dark-text);
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      background: #fafbfe;
      color: var(--dark-text);
      outline: none;
      transition: all var(--transition-fast);
    }

    .form-control:focus {
      border-color: var(--primary-color);
      box-shadow: 0 0 0 3px rgba(255, 51, 102, 0.15);
      background: #ffffff;
    }

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

    .contact-info-panel {
      background: linear-gradient(145deg, #fff5f8, #f5f3ff);
      padding: 32px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 51, 102, 0.15);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .contact-info-panel h3 {
      font-size: 1.3rem;
      font-weight: 800;
      color: var(--dark-text);
      margin-bottom: 14px;
    }

    .info-list li {
      margin-bottom: 12px;
      font-size: 0.94rem;
      color: var(--muted-text);
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .qr-card-wrapper {
      margin-top: 20px;
      padding: 16px;
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      text-align: center;
      display: inline-block;
      max-width: 180px;
    }

    .qr-card-wrapper img {
      width: 130px;
      height: 130px;
      object-fit: cover;
      margin: 0 auto 8px;
    }

    .qr-card-wrapper span {
      font-size: 0.82rem;
      color: var(--muted-text);
      display: block;
    }

    /* 行业资讯文章与百科链接 */
    .article-links-box {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .article-links-box h3 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 16px;
      color: var(--dark-text);
      border-left: 4px solid var(--primary-color);
      padding-left: 10px;
    }

    .dynamic-article-container {
      margin-bottom: 20px;
      padding: 12px;
      background: var(--bg-tint);
      border-radius: var(--radius-sm);
      font-size: 0.92rem;
      color: var(--muted-text);
    }

    .custom-article-list {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .article-badge-link {
      display: inline-flex;
      align-items: center;
      padding: 8px 16px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-full);
      font-size: 0.88rem;
      color: var(--dark-text);
      transition: all var(--transition-fast);
    }

    .article-badge-link:hover {
      border-color: #6366f1;
      color: #6366f1;
      transform: translateY(-2px);
    }

    /* 友情链接与页脚 */
    .site-footer {
      background: #111827;
      color: #9ca3af;
      padding: 60px 0 30px;
      border-top: 1px solid #1f2937;
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 30px;
      margin-bottom: 40px;
    }

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

    .footer-col p {
      font-size: 0.9rem;
      line-height: 1.7;
    }

    .footer-col ul li {
      margin-bottom: 10px;
    }

    .footer-col ul li a {
      color: #9ca3af;
      font-size: 0.9rem;
    }

    .footer-col ul li a:hover {
      color: #ff3366;
    }

    .friendly-links-container {
      border-top: 1px solid #1f2937;
      padding: 24px 0;
      margin-bottom: 24px;
    }

    .friendly-links-container h5 {
      color: #d1d5db;
      font-size: 0.95rem;
      margin-bottom: 12px;
    }

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

    .friendly-links-flex a {
      color: #9ca3af;
      font-size: 0.88rem;
      background: #1f2937;
      padding: 4px 12px;
      border-radius: 4px;
      transition: all var(--transition-fast);
    }

    .friendly-links-flex a:hover {
      color: #ffffff;
      background: var(--primary-color);
    }

    .footer-bottom {
      border-top: 1px solid #1f2937;
      padding-top: 24px;
      text-align: center;
      font-size: 0.85rem;
      color: #6b7280;
    }

    /* 浮动客服入口 */
    .floating-kefu-widget {
      position: fixed;
      right: 24px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      align-items: flex-end;
      gap: 10px;
    }

    .kefu-trigger-btn {
      width: 56px;
      height: 56px;
      border-radius: 50%;
      background: linear-gradient(135deg, #ff3366, #6366f1);
      box-shadow: 0 8px 25px rgba(255, 51, 102, 0.4);
      border: none;
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      font-size: 1.4rem;
      transition: transform var(--transition-fast);
    }

    .kefu-trigger-btn:hover {
      transform: scale(1.1);
    }

    .kefu-popup-card {
      display: none;
      background: #ffffff;
      padding: 16px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-color);
      width: 200px;
      text-align: center;
    }

    .kefu-popup-card.open {
      display: block;
    }

    .kefu-popup-card img {
      width: 140px;
      height: 140px;
      object-fit: cover;
      margin: 0 auto 8px;
    }

    .back-to-top {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--dark-text);
      cursor: pointer;
      transition: all var(--transition-fast);
    }

    .back-to-top:hover {
      background: var(--bg-tint);
      color: var(--primary-color);
    }

    /* 响应式适配 */
    @media (max-width: 1024px) {
      .stat-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-feature-grid,
      .scene-grid,
      .token-pricing-grid,
      .reviews-grid,
      .banner-gallery-grid,
      .asset-showcase-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .flow-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 74px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        align-items: flex-start;
        padding: 16px 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .hero-title {
        font-size: 2.1rem;
      }
      .section-title {
        font-size: 1.8rem;
      }
      .stat-grid,
      .about-feature-grid,
      .scene-grid,
      .token-pricing-grid,
      .reviews-grid,
      .banner-gallery-grid,
      .asset-showcase-grid,
      .flow-steps,
      .footer-top-grid {
        grid-template-columns: 1fr;
      }
      .contact-grid {
        grid-template-columns: 1fr;
        padding: 24px;
      }
      .evaluation-summary-box {
        flex-direction: column;
        text-align: center;
      }
      .rating-badge-side {
        flex-direction: column;
      }
    }