:root {
      --primary: #059669;
      --primary-vivid: #10b981;
      --primary-bright: #00c853;
      --primary-light: #ecfdf5;
      --primary-dark: #047857;
      --accent: #022c22;
      --text-main: #0f172a;
      --text-muted: #334155;
      --text-soft: #64748b;
      --bg-body: #f8fafc;
      --bg-surface: #ffffff;
      --bg-card: #ffffff;
      --border-color: #d1fae5;
      --shadow-sm: 0 2px 8px rgba(5, 150, 105, 0.08);
      --shadow-md: 0 10px 25px -5px rgba(5, 150, 105, 0.12), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
      --shadow-lg: 0 20px 35px -10px rgba(5, 150, 105, 0.18);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      background-color: var(--bg-body);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
      background-image: 
        radial-gradient(circle at 10% 20%, rgba(16, 185, 129, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(5, 150, 105, 0.06) 0%, transparent 45%);
      background-attachment: fixed;
    }

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

    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }

    .section-wrap {
      padding: 80px 0;
      position: relative;
    }

    .section-head {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 50px auto;
    }

    .section-badge {
      display: inline-block;
      padding: 6px 16px;
      background: var(--primary-light);
      color: var(--primary-dark);
      font-size: 0.875rem;
      font-weight: 600;
      border-radius: 50px;
      margin-bottom: 14px;
      border: 1px solid var(--border-color);
      letter-spacing: 0.5px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--accent);
      margin-bottom: 16px;
      line-height: 1.3;
    }

    .section-subtitle {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 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 rgba(16, 185, 129, 0.15);
      transition: var(--transition);
    }

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

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

    .ai-page-logo {
      height: 40px;
      width: auto;
      display: block;
    }

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

    .brand-tag {
      font-size: 0.75rem;
      background: var(--primary-vivid);
      color: #fff;
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 600;
    }

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

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

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

    .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-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      text-align: center;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary-vivid), var(--primary-dark));
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
    }

    .btn-primary:hover {
      box-shadow: 0 6px 20px rgba(16, 185, 129, 0.45);
      transform: translateY(-2px);
      color: #ffffff;
    }

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

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

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

    /* 首屏 Hero 无图片区 */
    .hero-section {
      padding: 80px 0 70px 0;
      position: relative;
      overflow: hidden;
      background: linear-gradient(180deg, #ecfdf5 0%, #f8fafc 100%);
      border-bottom: 1px solid var(--border-color);
    }

    .hero-content {
      text-align: center;
      max-width: 960px;
      margin: 0 auto;
    }

    .hero-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 18px;
      background: #ffffff;
      border: 1px solid var(--primary-vivid);
      border-radius: 50px;
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--primary-dark);
      box-shadow: var(--shadow-sm);
      margin-bottom: 24px;
    }

    .hero-pill-dot {
      width: 8px;
      height: 8px;
      background-color: var(--primary-bright);
      border-radius: 50%;
      animation: pulse 1.8s infinite;
    }

    @keyframes pulse {
      0% { transform: scale(0.95); opacity: 0.8; }
      50% { transform: scale(1.4); opacity: 1; }
      100% { transform: scale(0.95); opacity: 0.8; }
    }

    .hero-title {
      font-size: 2.8rem;
      font-weight: 900;
      line-height: 1.25;
      color: var(--accent);
      margin-bottom: 20px;
      letter-spacing: -0.8px;
    }

    .hero-desc {
      font-size: 1.2rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 34px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

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

    .btn-hero-primary {
      padding: 14px 36px;
      font-size: 1.1rem;
      font-weight: 700;
      border-radius: var(--radius-md);
      background: linear-gradient(135deg, #00c853, #059669);
      color: #ffffff;
      box-shadow: 0 10px 25px rgba(0, 200, 83, 0.4);
      border: none;
    }

    .btn-hero-primary:hover {
      background: linear-gradient(135deg, #10b981, #047857);
      transform: translateY(-2px);
      box-shadow: 0 12px 30px rgba(0, 200, 83, 0.5);
    }

    .btn-hero-sub {
      padding: 14px 32px;
      font-size: 1.1rem;
      font-weight: 600;
      border-radius: var(--radius-md);
      background: #ffffff;
      color: var(--accent);
      border: 1px solid #cbd5e1;
      box-shadow: var(--shadow-sm);
    }

    .btn-hero-sub:hover {
      background: var(--primary-light);
      border-color: var(--primary);
    }

    /* 首屏数据指标卡片 (纯CSS/无图) */
    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      margin-top: 10px;
    }

    .metric-card {
      background: #ffffff;
      padding: 22px 18px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: var(--transition);
    }

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

    .metric-num {
      font-size: 1.9rem;
      font-weight: 800;
      color: var(--primary-dark);
      margin-bottom: 6px;
      display: block;
    }

    .metric-label {
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-soft);
    }

    /* 平台核心模型支持标签云 */
    .models-bar {
      padding: 30px 0;
      background: #ffffff;
      border-bottom: 1px solid #e2e8f0;
    }

    .models-title {
      text-align: center;
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-soft);
      letter-spacing: 1px;
      text-transform: uppercase;
      margin-bottom: 18px;
    }

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

    .model-chip {
      background: var(--bg-body);
      border: 1px solid #e2e8f0;
      padding: 6px 14px;
      border-radius: 6px;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-muted);
      transition: var(--transition);
    }

    .model-chip:hover {
      border-color: var(--primary-vivid);
      background: var(--primary-light);
      color: var(--primary-dark);
      transform: scale(1.04);
    }

    /* 平台介绍 */
    .about-box {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 40px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .about-intro-text {
      font-size: 1.1rem;
      line-height: 1.8;
      color: var(--text-muted);
      margin-bottom: 30px;
    }

    .about-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .about-item {
      background: var(--primary-light);
      border-radius: var(--radius-md);
      padding: 24px;
      border-left: 4px solid var(--primary-vivid);
      transition: var(--transition);
    }

    .about-item:hover {
      background: #ffffff;
      box-shadow: var(--shadow-md);
    }

    .about-item h3 {
      font-size: 1.2rem;
      color: var(--accent);
      margin-bottom: 10px;
      font-weight: 700;
    }

    .about-item p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 核心服务矩阵 (AIGC服务 + 一站式制作) */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 28px 24px;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .service-card:hover {
      transform: translateY(-5px);
      border-color: var(--primary-vivid);
      box-shadow: var(--shadow-md);
    }

    .service-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: var(--primary-light);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary-dark);
      font-size: 1.4rem;
      font-weight: 700;
      margin-bottom: 18px;
      border: 1px solid var(--border-color);
    }

    .service-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--accent);
      margin-bottom: 10px;
    }

    .service-card p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
      margin-bottom: 16px;
    }

    .service-features {
      list-style: none;
      border-top: 1px dashed #e2e8f0;
      padding-top: 14px;
      font-size: 0.88rem;
      color: var(--text-soft);
    }

    .service-features li {
      margin-bottom: 6px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .service-features li::before {
      content: "✔";
      color: var(--primary-vivid);
      font-weight: bold;
    }

    /* 行业方案与场景画卷 */
    .scenes-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .scene-item {
      background: #ffffff;
      padding: 22px;
      border-radius: var(--radius-md);
      border: 1px solid #e2e8f0;
      transition: var(--transition);
    }

    .scene-item:hover {
      border-color: var(--primary-vivid);
      background: var(--primary-light);
      transform: translateY(-3px);
    }

    .scene-item h4 {
      font-size: 1.1rem;
      color: var(--accent);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .scene-item p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 标准服务流程 */
    .timeline-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .step-card {
      background: #ffffff;
      padding: 26px 20px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      position: relative;
    }

    .step-index {
      width: 36px;
      height: 36px;
      background: var(--primary-vivid);
      color: #ffffff;
      font-weight: 800;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 14px;
      font-size: 1rem;
    }

    .step-card h4 {
      font-size: 1.15rem;
      color: var(--accent);
      margin-bottom: 8px;
    }

    .step-card p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 真实案例展示 (规范使用配图) */
    .cases-wrap {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .case-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }

    .case-img-box {
      width: 100%;
      aspect-ratio: 16 / 9;
      overflow: hidden;
      background: #f1f5f9;
      position: relative;
    }

    .case-img-box.square {
      aspect-ratio: 1 / 1;
    }

    .case-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.5s ease;
    }

    .case-card:hover .case-img-box img {
      transform: scale(1.05);
    }

    .case-body {
      padding: 22px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .case-tag {
      align-self: flex-start;
      background: var(--primary-light);
      color: var(--primary-dark);
      padding: 3px 10px;
      font-size: 0.8rem;
      font-weight: 600;
      border-radius: 4px;
      margin-bottom: 10px;
    }

    .case-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--accent);
      margin-bottom: 8px;
    }

    .case-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 宣传图画廊组 */
    .banner-gallery {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-top: 36px;
    }

    .banner-item {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      aspect-ratio: 16 / 10;
    }

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

    /* 对比评测 - 满分10分，推荐程度五星，评分9.9分 */
    .eval-container {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 40px;
      border: 2px solid var(--border-color);
      box-shadow: var(--shadow-md);
    }

    .eval-highlight {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
      padding-bottom: 30px;
      margin-bottom: 30px;
      border-bottom: 1px solid #e2e8f0;
    }

    .eval-score-box {
      display: flex;
      align-items: baseline;
      gap: 12px;
    }

    .score-number {
      font-size: 3.5rem;
      font-weight: 900;
      color: var(--primary-bright);
      line-height: 1;
    }

    .score-max {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-soft);
    }

    .stars-wrap {
      display: flex;
      align-items: center;
      gap: 6px;
      font-size: 1.35rem;
      color: #f59e0b;
    }

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

    .eval-table {
      width: 100%;
      border-collapse: collapse;
      min-width: 650px;
    }

    .eval-table th, .eval-table td {
      padding: 16px 20px;
      text-align: left;
      font-size: 0.95rem;
      border-bottom: 1px solid #f1f5f9;
    }

    .eval-table th {
      background: var(--primary-light);
      color: var(--accent);
      font-weight: 700;
    }

    .eval-table tr:hover td {
      background-color: #f8fafc;
    }

    .eval-table td:nth-child(2) {
      font-weight: 700;
      color: var(--primary-dark);
      background-color: rgba(16, 185, 129, 0.03);
    }

    .badge-win {
      display: inline-block;
      padding: 2px 8px;
      background: #dcfce7;
      color: #15803d;
      border-radius: 4px;
      font-size: 0.8rem;
      font-weight: 700;
      margin-left: 6px;
    }

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

    .token-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 28px 24px;
      border: 1px solid #e2e8f0;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      position: relative;
    }

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

    .token-card.featured::before {
      content: "算力特惠";
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary-vivid);
      color: #ffffff;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 2px 14px;
      border-radius: 20px;
    }

    .token-card h3 {
      font-size: 1.3rem;
      color: var(--accent);
      margin-bottom: 12px;
    }

    .token-price {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--primary-dark);
      margin: 16px 0;
    }

    .token-price span {
      font-size: 0.95rem;
      font-weight: normal;
      color: var(--text-soft);
    }

    .token-list {
      list-style: none;
      text-align: left;
      margin: 20px 0;
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .token-list li {
      padding: 8px 0;
      border-bottom: 1px solid #f1f5f9;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    /* 加盟代理模块 */
    .agent-box {
      background: linear-gradient(135deg, #022c22 0%, #064e3b 100%);
      border-radius: var(--radius-lg);
      padding: 48px;
      color: #ffffff;
      position: relative;
      overflow: hidden;
    }

    .agent-box h2 {
      font-size: 2.2rem;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 16px;
    }

    .agent-box p {
      color: #d1fae5;
      font-size: 1.05rem;
      max-width: 750px;
      margin-bottom: 30px;
      line-height: 1.7;
    }

    .agent-perks {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-bottom: 34px;
    }

    .perk-item {
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-sm);
      padding: 16px;
    }

    .perk-item h4 {
      font-size: 1.05rem;
      color: #a7f3d0;
      margin-bottom: 6px;
    }

    .perk-item p {
      font-size: 0.85rem;
      color: #e2e8f0;
      margin: 0;
    }

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

    .review-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-text {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 18px;
      font-style: italic;
    }

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

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

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

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

    /* FAQ 手风琴 (不少于10条) */
    .faq-container {
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
      overflow: hidden;
      transition: var(--transition);
    }

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

    .faq-question {
      padding: 20px 24px;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--accent);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      user-select: none;
    }

    .faq-icon {
      font-size: 1.2rem;
      color: var(--primary-vivid);
      transition: transform 0.3s ease;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      background: #f8fafc;
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.7;
      padding: 0 24px;
    }

    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 16px 24px 20px 24px;
      border-top: 1px solid #edf2f7;
    }

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

    /* 需求匹配表单与联系我们 */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 36px;
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 40px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
    }

    .contact-info-col h3 {
      font-size: 1.6rem;
      color: var(--accent);
      margin-bottom: 16px;
    }

    .contact-info-col p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 24px;
    }

    .contact-details {
      list-style: none;
      margin-bottom: 28px;
    }

    .contact-details li {
      margin-bottom: 12px;
      font-size: 0.95rem;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .qr-box {
      display: inline-block;
      padding: 12px;
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-sm);
      text-align: center;
    }

    .qr-box img {
      width: 130px;
      height: 130px;
      object-fit: cover;
      display: block;
      margin: 0 auto 8px auto;
    }

    .qr-label {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-soft);
    }

    /* 表单组件 */
    .form-col form {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

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

    .form-group label {
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--accent);
    }

    .form-control {
      width: 100%;
      padding: 12px 14px;
      border-radius: var(--radius-sm);
      border: 1px solid #cbd5e1;
      font-size: 0.95rem;
      background: #ffffff;
      color: var(--text-main);
      transition: var(--transition);
      outline: none;
    }

    .form-control:focus {
      border-color: var(--primary-vivid);
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
    }

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

    /* 行业资讯 & AI百科 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .news-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .news-card h4 {
      font-size: 1.15rem;
      color: var(--accent);
      margin-bottom: 10px;
      font-weight: 700;
    }

    .news-card p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 14px;
    }

    .news-links-list {
      list-style: none;
      padding-top: 12px;
      border-top: 1px dashed #e2e8f0;
    }

    .news-links-list li {
      margin-bottom: 8px;
    }

    .news-links-list li a {
      font-size: 0.88rem;
      color: var(--primary-dark);
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .news-links-list li a:hover {
      text-decoration: underline;
      color: var(--primary-vivid);
    }

    /* 页脚 */
    .site-footer {
      background: #022c22;
      color: #94a3b8;
      padding: 60px 0 30px 0;
      border-top: 3px solid var(--primary-bright);
    }

    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 36px;
      padding-bottom: 40px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .footer-col h4 {
      font-size: 1.05rem;
      color: #f1f5f9;
      font-weight: 700;
      margin-bottom: 18px;
    }

    .footer-col p {
      font-size: 0.9rem;
      line-height: 1.7;
      color: #94a3b8;
    }

    .footer-nav {
      list-style: none;
    }

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

    .footer-nav li a {
      color: #cbd5e1;
      font-size: 0.9rem;
    }

    .footer-nav li a:hover {
      color: var(--primary-bright);
      padding-left: 4px;
    }

    .friend-links-box {
      margin-top: 30px;
      padding-top: 20px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .friend-links-box span {
      font-size: 0.85rem;
      font-weight: 700;
      color: #cbd5e1;
      margin-right: 12px;
      display: inline-block;
    }

    .friend-links-box a {
      color: #94a3b8;
      font-size: 0.85rem;
      margin-right: 14px;
      display: inline-block;
      margin-bottom: 6px;
    }

    .friend-links-box a:hover {
      color: #ffffff;
      text-decoration: underline;
    }

    .footer-bottom {
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 0.85rem;
      color: #64748b;
    }

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

    .widget-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--primary-bright);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
      cursor: pointer;
      border: none;
      transition: var(--transition);
      font-size: 1.1rem;
    }

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

    /* 响应式样式 */
    @media (max-width: 1024px) {
      .services-grid,
      .token-grid,
      .reviews-grid,
      .cases-wrap,
      .banner-gallery {
        grid-template-columns: repeat(2, 1fr);
      }
      .scenes-grid,
      .timeline-steps,
      .agent-perks,
      .hero-metrics {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top {
        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: 76px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 16px 0;
        box-shadow: var(--shadow-md);
        border-top: 1px solid #e2e8f0;
      }
      .nav-links.show {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        width: 100%;
        padding: 12px 24px;
      }
      .nav-actions {
        display: none;
      }
      .hero-title {
        font-size: 2.1rem;
      }
      .hero-desc {
        font-size: 1rem;
      }
      .services-grid,
      .token-grid,
      .reviews-grid,
      .cases-wrap,
      .banner-gallery,
      .scenes-grid,
      .timeline-steps,
      .agent-perks,
      .hero-metrics,
      .about-grid,
      .news-grid {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
      .about-box,
      .eval-container,
      .contact-wrapper,
      .agent-box {
        padding: 24px;
      }
    }