:root {
      --primary: #0b4edb;
      --primary-light: #2563eb;
      --primary-bright: #0080ff;
      --accent: #0284c7;
      --accent-glow: rgba(11, 78, 219, 0.15);
      --dark-text: #0f172a;
      --body-text: #334155;
      --muted-text: #64748b;
      --light-bg: #f8fafc;
      --card-bg: #ffffff;
      --card-border: #e2e8f0;
      --blue-subtle: #eff6ff;
      --success: #10b981;
      --warning: #f59e0b;
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --radius-xl: 24px;
      --shadow-sm: 0 2px 6px rgba(15, 23, 42, 0.05);
      --shadow-md: 0 10px 25px -5px rgba(11, 78, 219, 0.08), 0 8px 10px -6px rgba(11, 78, 219, 0.04);
      --shadow-lg: 0 20px 30px -10px rgba(11, 78, 219, 0.12);
      --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }

    *, *::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(--light-bg);
      color: var(--body-text);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    a {
      color: var(--primary);
      text-decoration: none;
      transition: var(--transition);
    }
    a:hover {
      color: var(--primary-light);
    }

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

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--card-border);
      box-shadow: 0 2px 10px rgba(0,0,0,0.03);
    }
    .header-wrap {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }
    .brand-area {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-logo-wrap {
      display: flex;
      align-items: center;
      max-height: 44px;
    }
    .brand-name {
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.5px;
    }
    .ai-page-home-link {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--dark-text);
      padding: 6px 12px;
      border-radius: var(--radius-sm);
    }
    .ai-page-home-link:hover {
      background-color: var(--blue-subtle);
      color: var(--primary);
    }

    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 0; /* 严格要求：gap为0 */
    }
    .nav-links li a {
      display: block;
      padding: 8px 13px;
      font-size: 0.93rem;
      font-weight: 500;
      color: var(--dark-text);
      border-radius: var(--radius-sm);
      transition: var(--transition);
      white-space: nowrap;
    }
    .nav-links li a:hover {
      color: var(--primary);
      background: var(--blue-subtle);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 600;
      font-size: 0.92rem;
      padding: 10px 22px;
      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%, var(--primary-bright) 100%);
      color: #ffffff !important;
      box-shadow: 0 4px 14px rgba(11, 78, 219, 0.3);
    }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(11, 78, 219, 0.4);
    }
    .btn-secondary {
      background: var(--blue-subtle);
      color: var(--primary) !important;
      border-color: #bfdbfe;
    }
    .btn-secondary:hover {
      background: #dbeafe;
      transform: translateY(-1px);
    }
    .btn-official-hero {
      background: #ffffff;
      color: var(--primary) !important;
      font-size: 1.05rem;
      font-weight: 700;
      padding: 14px 32px;
      border-radius: var(--radius-md);
      box-shadow: 0 10px 25px rgba(2, 132, 199, 0.35);
      border: 2px solid #ffffff;
    }
    .btn-official-hero:hover {
      transform: translateY(-3px) scale(1.02);
      box-shadow: 0 16px 32px rgba(2, 132, 199, 0.45);
      background: #f0f9ff;
    }

    .mobile-toggle {
      display: none;
      background: none;
      border: 1px solid var(--card-border);
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      font-size: 1.1rem;
      color: var(--dark-text);
    }

    /* 首屏 HERO 区域（严格无图片，纯CSS动效与渐变，宝蓝明艳风） */
    .hero-section {
      position: relative;
      background: radial-gradient(circle at 80% 20%, #1e40af 0%, #0b4edb 45%, #082f8a 100%);
      color: #ffffff;
      padding: 90px 0 80px;
      overflow: hidden;
    }
    .hero-section::before {
      content: "";
      position: absolute;
      top: -30%;
      left: -10%;
      width: 600px;
      height: 600px;
      background: radial-gradient(circle, rgba(0, 180, 255, 0.3) 0%, rgba(0, 180, 255, 0) 70%);
      border-radius: 50%;
      filter: blur(50px);
      pointer-events: none;
    }
    .hero-section::after {
      content: "";
      position: absolute;
      bottom: -20%;
      right: -5%;
      width: 500px;
      height: 500px;
      background: radial-gradient(circle, rgba(96, 165, 250, 0.25) 0%, rgba(96, 165, 250, 0) 70%);
      border-radius: 50%;
      filter: blur(60px);
      pointer-events: none;
    }
    .hero-content {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 960px;
      margin: 0 auto;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255, 255, 255, 0.15);
      border: 1px solid rgba(255, 255, 255, 0.3);
      padding: 6px 18px;
      border-radius: 999px;
      font-size: 0.88rem;
      font-weight: 600;
      color: #e0f2fe;
      margin-bottom: 24px;
      backdrop-filter: blur(8px);
    }
    .hero-title {
      font-size: 2.7rem;
      font-weight: 800;
      line-height: 1.25;
      color: #ffffff;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }
    .hero-desc {
      font-size: 1.15rem;
      line-height: 1.7;
      color: #e2e8f0;
      max-width: 820px;
      margin: 0 auto 36px;
    }
    .hero-btns {
      display: flex;
      justify-content: center;
      align-items: center;
      flex-wrap: wrap;
      gap: 18px;
      margin-bottom: 50px;
    }
    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      margin-top: 20px;
    }
    .hero-stat-card {
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: var(--radius-md);
      padding: 22px 16px;
      backdrop-filter: blur(10px);
      text-align: center;
      transition: var(--transition);
    }
    .hero-stat-card:hover {
      background: rgba(255, 255, 255, 0.16);
      transform: translateY(-3px);
    }
    .hero-stat-num {
      font-size: 1.9rem;
      font-weight: 800;
      color: #ffffff;
      line-height: 1.1;
      margin-bottom: 6px;
    }
    .hero-stat-label {
      font-size: 0.86rem;
      color: #bae6fd;
    }

    /* 公共Section标题 */
    .section-wrap {
      padding: 80px 0;
    }
    .section-alt {
      background-color: #ffffff;
      border-top: 1px solid #eef2f6;
      border-bottom: 1px solid #eef2f6;
    }
    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 48px;
    }
    .section-tag {
      display: inline-block;
      font-size: 0.82rem;
      font-weight: 700;
      text-transform: uppercase;
      color: var(--primary);
      background: var(--blue-subtle);
      padding: 4px 14px;
      border-radius: 999px;
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 2rem;
      font-weight: 800;
      color: var(--dark-text);
      line-height: 1.3;
      margin-bottom: 14px;
    }
    .section-desc {
      font-size: 1rem;
      color: var(--muted-text);
      line-height: 1.7;
    }

    /* 卡片通用样式 */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
    }

    .feature-card {
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-lg);
      padding: 30px 26px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .feature-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: #bfdbfe;
    }
    .card-icon {
      width: 48px;
      height: 48px;
      background: var(--blue-subtle);
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 1.4rem;
      margin-bottom: 20px;
      font-weight: 700;
    }
    .card-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--dark-text);
      margin-bottom: 12px;
    }
    .card-text {
      font-size: 0.94rem;
      color: var(--body-text);
      line-height: 1.65;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .card-badge-list {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-top: auto;
    }
    .card-badge {
      background: #f1f5f9;
      color: #475569;
      font-size: 0.78rem;
      padding: 3px 8px;
      border-radius: 4px;
    }

    /* 场景矩阵列表 */
    .scene-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
      gap: 20px;
    }
    .scene-item {
      background: #ffffff;
      border: 1px solid var(--card-border);
      border-radius: var(--radius-md);
      padding: 22px;
      transition: var(--transition);
      display: flex;
      gap: 16px;
    }
    .scene-item:hover {
      border-color: var(--primary-light);
      box-shadow: var(--shadow-sm);
      transform: translateY(-2px);
    }
    .scene-icon-box {
      flex-shrink: 0;
      width: 42px;
      height: 42px;
      border-radius: var(--radius-sm);
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
      font-weight: bold;
    }
    .scene-body h3 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--dark-text);
      margin-bottom: 6px;
    }
    .scene-body p {
      font-size: 0.88rem;
      color: var(--body-text);
      line-height: 1.55;
    }

    /* 模型矩阵徽章云 */
    .model-pills-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 25px;
    }
    .model-pill {
      background: #ffffff;
      border: 1px solid #cbd5e1;
      padding: 8px 16px;
      border-radius: 999px;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--dark-text);
      transition: var(--transition);
      box-shadow: 0 1px 3px rgba(0,0,0,0.03);
    }
    .model-pill:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: var(--blue-subtle);
      transform: scale(1.05);
    }

    /* 流程与步骤 */
    .step-grid {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 16px;
    }
    .step-card {
      background: #ffffff;
      border: 1px solid var(--card-border);
      border-radius: var(--radius-md);
      padding: 22px 14px;
      text-align: center;
      position: relative;
      transition: var(--transition);
    }
    .step-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
    }
    .step-num {
      width: 32px;
      height: 32px;
      background: var(--primary);
      color: #ffffff;
      font-weight: 800;
      font-size: 0.9rem;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 12px;
    }
    .step-title {
      font-size: 0.96rem;
      font-weight: 700;
      color: var(--dark-text);
      margin-bottom: 6px;
    }
    .step-desc {
      font-size: 0.8rem;
      color: var(--muted-text);
      line-height: 1.45;
    }

    /* 案例中心展示（图片安置区） */
    .media-card-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-bottom: 30px;
    }
    .media-card {
      background: #ffffff;
      border: 1px solid var(--card-border);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .media-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .media-img-wrap {
      width: 100%;
      height: 220px;
      background: #e2e8f0;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .media-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .media-card:hover .media-img-wrap img {
      transform: scale(1.04);
    }
    .media-body {
      padding: 20px;
    }
    .media-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--dark-text);
      margin-bottom: 8px;
    }
    .media-text {
      font-size: 0.88rem;
      color: var(--body-text);
      line-height: 1.55;
    }

    /* 对比评测表格与评分标牌 */
    .eval-score-banner {
      background: linear-gradient(135deg, #0b4edb 0%, #0284c7 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 30px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
      margin-bottom: 32px;
      box-shadow: var(--shadow-md);
    }
    .eval-score-left h3 {
      font-size: 1.5rem;
      font-weight: 800;
      margin-bottom: 6px;
    }
    .eval-score-left p {
      font-size: 0.95rem;
      color: #e0f2fe;
    }
    .eval-score-badges {
      display: flex;
      gap: 24px;
      align-items: center;
    }
    .score-badge-item {
      text-align: center;
      background: rgba(255,255,255,0.15);
      border: 1px solid rgba(255,255,255,0.25);
      padding: 10px 20px;
      border-radius: var(--radius-md);
    }
    .score-val {
      font-size: 1.8rem;
      font-weight: 800;
      line-height: 1.1;
      color: #ffed4a;
    }
    .score-label {
      font-size: 0.8rem;
      color: #ffffff;
    }

    .comparison-table-wrap {
      background: #ffffff;
      border: 1px solid var(--card-border);
      border-radius: var(--radius-lg);
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
    }
    .comp-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }
    .comp-table th, .comp-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #f1f5f9;
      font-size: 0.92rem;
    }
    .comp-table th {
      background: #f8fafc;
      color: var(--dark-text);
      font-weight: 700;
    }
    .comp-table tr:hover td {
      background: #f8fafc;
    }
    .comp-highlight {
      background: #f0f7ff !important;
      font-weight: 700;
      color: var(--primary);
    }

    /* Token 比价表 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .token-card {
      background: #ffffff;
      border: 1px solid var(--card-border);
      border-radius: var(--radius-lg);
      padding: 28px;
      position: relative;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
    }
    .token-card.featured {
      border: 2px solid var(--primary);
      box-shadow: var(--shadow-md);
    }
    .token-card-tag {
      position: absolute;
      top: -12px;
      right: 20px;
      background: var(--primary);
      color: #ffffff;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 3px 10px;
      border-radius: 999px;
    }
    .token-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--dark-text);
      margin-bottom: 8px;
    }
    .token-price {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 16px;
    }
    .token-price span {
      font-size: 0.9rem;
      font-weight: 500;
      color: var(--muted-text);
    }
    .token-features {
      list-style: none;
      margin-bottom: 24px;
    }
    .token-features li {
      font-size: 0.88rem;
      color: var(--body-text);
      padding: 6px 0;
      display: flex;
      align-items: center;
      gap: 8px;
      border-bottom: 1px dashed #f1f5f9;
    }

    /* 用户评论 */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .review-card {
      background: #ffffff;
      border: 1px solid var(--card-border);
      border-radius: var(--radius-lg);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
    }
    .review-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #bfdbfe;
    }
    .review-stars {
      color: #f59e0b;
      font-size: 0.95rem;
      margin-bottom: 12px;
    }
    .review-content {
      font-size: 0.92rem;
      color: var(--body-text);
      line-height: 1.65;
      margin-bottom: 20px;
    }
    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f1f5f9;
      padding-top: 14px;
    }
    .reviewer-avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--blue-subtle);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.95rem;
    }
    .reviewer-info h4 {
      font-size: 0.92rem;
      font-weight: 700;
      color: var(--dark-text);
    }
    .reviewer-info p {
      font-size: 0.78rem;
      color: var(--muted-text);
    }

    /* FAQ 手风琴 */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--card-border);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-item.active {
      border-color: var(--primary);
      box-shadow: 0 4px 12px rgba(11, 78, 219, 0.06);
    }
    .faq-question {
      padding: 18px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      font-weight: 700;
      font-size: 1.02rem;
      color: var(--dark-text);
      user-select: none;
    }
    .faq-question:hover {
      color: var(--primary);
    }
    .faq-icon {
      font-size: 1.2rem;
      transition: transform 0.25s ease;
      color: var(--primary);
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #fbfdff;
    }
    .faq-item.active .faq-answer {
      max-height: 250px;
      padding: 0 24px 20px;
    }
    .faq-answer p {
      font-size: 0.93rem;
      color: var(--body-text);
      line-height: 1.65;
    }

    /* 表单与联系我们 */
    .contact-container-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      background: #ffffff;
      border: 1px solid var(--card-border);
      border-radius: var(--radius-xl);
      padding: 40px;
      box-shadow: var(--shadow-sm);
    }
    .form-group {
      margin-bottom: 18px;
    }
    .form-group label {
      display: block;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--dark-text);
      margin-bottom: 6px;
    }
    .form-control {
      width: 100%;
      padding: 12px 14px;
      font-size: 0.92rem;
      border: 1px solid #cbd5e1;
      border-radius: var(--radius-sm);
      outline: none;
      transition: var(--transition);
      background: #f8fafc;
      color: var(--dark-text);
    }
    .form-control:focus {
      border-color: var(--primary);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(11, 78, 219, 0.15);
    }
    textarea.form-control {
      resize: vertical;
      min-height: 110px;
    }

    .contact-info-panel {
      background: linear-gradient(145deg, #eff6ff 0%, #f0fdfa 100%);
      border: 1px solid #bfdbfe;
      border-radius: var(--radius-lg);
      padding: 30px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .contact-info-list {
      list-style: none;
      margin-bottom: 24px;
    }
    .contact-info-list li {
      font-size: 0.93rem;
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 10px;
      color: var(--dark-text);
    }
    .qr-box-wrap {
      text-align: center;
      background: #ffffff;
      padding: 16px;
      border-radius: var(--radius-md);
      border: 1px solid #e2e8f0;
      width: fit-content;
      margin: 0 auto;
    }
    .qr-box-wrap img {
      width: 140px;
      height: 140px;
      object-fit: contain;
      border-radius: 4px;
      display: block;
      margin-bottom: 8px;
    }
    .qr-box-wrap span {
      font-size: 0.8rem;
      color: var(--muted-text);
      font-weight: 500;
    }

    /* 资讯与百科文章 */
    .article-link-list {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      gap: 12px;
      margin-top: 20px;
    }
    .article-item-link {
      background: #ffffff;
      border: 1px solid var(--card-border);
      padding: 12px 18px;
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: space-between;
      color: var(--dark-text);
      font-size: 0.9rem;
      font-weight: 500;
      transition: var(--transition);
    }
    .article-item-link:hover {
      background: var(--blue-subtle);
      border-color: #93c5fd;
      color: var(--primary);
    }

    /* 代理加盟专区 */
    .agent-box {
      background: radial-gradient(circle at 10% 20%, #1e3a8a 0%, #0f172a 100%);
      color: #ffffff;
      border-radius: var(--radius-xl);
      padding: 48px 40px;
      box-shadow: var(--shadow-lg);
    }
    .agent-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
    }
    .agent-box h3 {
      font-size: 1.8rem;
      font-weight: 800;
      margin-bottom: 16px;
      color: #ffffff;
    }
    .agent-box p {
      color: #cbd5e1;
      font-size: 0.98rem;
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .agent-perks {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }
    .agent-perks li {
      font-size: 0.9rem;
      color: #93c5fd;
      background: rgba(255, 255, 255, 0.08);
      padding: 10px 14px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.12);
    }

    /* 页脚 */
    .site-footer {
      background: #0f172a;
      color: #cbd5e1;
      padding: 60px 0 30px;
      border-top: 1px solid #1e293b;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 36px;
      margin-bottom: 40px;
    }
    .footer-col h4 {
      color: #ffffff;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .footer-col p {
      font-size: 0.88rem;
      color: #94a3b8;
      line-height: 1.6;
      margin-bottom: 12px;
    }
    .footer-links {
      list-style: none;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: #94a3b8;
      font-size: 0.88rem;
    }
    .footer-links a:hover {
      color: #ffffff;
      padding-left: 4px;
    }
    .friend-links-box {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      margin-bottom: 24px;
    }
    .friend-links-box span {
      font-size: 0.85rem;
      color: #64748b;
      margin-right: 12px;
      font-weight: 600;
    }
    .friend-links-box a {
      color: #94a3b8;
      font-size: 0.85rem;
      margin-right: 16px;
      display: inline-block;
      margin-bottom: 6px;
    }
    .friend-links-box a:hover {
      color: #38bdf8;
    }
    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      text-align: center;
      font-size: 0.84rem;
      color: #64748b;
    }

    /* 浮动组件 */
    .float-widget {
      position: fixed;
      right: 20px;
      bottom: 24px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      box-shadow: 0 4px 14px rgba(0,0,0,0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-weight: bold;
      cursor: pointer;
      border: 1px solid #cbd5e1;
      transition: var(--transition);
      font-size: 1.1rem;
    }
    .float-btn:hover {
      background: var(--primary);
      color: #ffffff;
      transform: scale(1.08);
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .grid-4, .hero-stats-grid, .step-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .media-card-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .token-grid, .review-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .header-wrap {
        height: 64px;
      }
      .mobile-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 16px 20px;
        border-bottom: 1px solid var(--card-border);
        box-shadow: 0 10px 20px rgba(0,0,0,0.08);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        padding: 10px 0;
        border-bottom: 1px solid #f1f5f9;
      }
      .hero-title {
        font-size: 1.85rem;
      }
      .hero-desc {
        font-size: 0.98rem;
      }
      .grid-3, .grid-2, .contact-container-grid, .agent-grid {
        grid-template-columns: 1fr;
      }
      .scene-grid {
        grid-template-columns: 1fr;
      }
      .step-grid {
        grid-template-columns: 1fr;
      }
      .media-card-grid {
        grid-template-columns: 1fr;
      }
      .eval-score-banner {
        flex-direction: column;
        align-items: flex-start;
      }
      .section-wrap {
        padding: 50px 0;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }