:root {
      --primary-cyan: #0fa4a8;
      --primary-dark-cyan: #087f82;
      --accent-teal: #14b8a6;
      --accent-mint: #2dd4bf;
      --bg-page: #f5fbfb;
      --bg-card: #ffffff;
      --bg-card-subtle: #edf8f8;
      --text-main: #132a2c;
      --text-muted: #4e6b6d;
      --text-light: #7c9899;
      --border-color: #d6eceb;
      --border-light: #e6f4f3;
      --cyan-gradient: linear-gradient(135deg, #0fa4a8 0%, #06b6d4 100%);
      --cyan-gradient-subtle: linear-gradient(180deg, #f0fbfb 0%, #e6f6f5 100%);
      --box-shadow-sm: 0 4px 12px rgba(15, 164, 168, 0.06);
      --box-shadow-md: 0 10px 25px rgba(15, 164, 168, 0.1);
      --box-shadow-lg: 0 16px 36px rgba(15, 164, 168, 0.15);
      --border-radius: 12px;
      --transition-fast: all 0.25s ease-in-out;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-tap-highlight-color: transparent;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      display: flex;
      flex-direction: column;
      min-height: 100vh;
    }

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

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

    /* 容器基准 */
    .container {
      width: 100%;
      max-width: 1200px;
      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);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 10px rgba(15, 164, 168, 0.05);
    }

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

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

    .brand-logo-wrap {
      width: 140px;
      display: flex;
      align-items: center;
    }

    .brand-tagline {
      font-size: 13px;
      color: var(--primary-cyan);
      font-weight: 600;
      background: #e6f7f7;
      padding: 3px 8px;
      border-radius: 4px;
      border: 1px solid var(--border-color);
    }

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

    .nav-links li a {
      display: block;
      padding: 8px 12px;
      font-size: 14px;
      font-weight: 500;
      color: var(--text-main);
      border-radius: 6px;
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary-cyan);
      background: #f0fbfb;
    }

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

    .btn-header-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 8px 18px;
      background: var(--cyan-gradient);
      color: #ffffff;
      font-size: 14px;
      font-weight: 600;
      border-radius: 8px;
      box-shadow: 0 4px 12px rgba(15, 164, 168, 0.25);
    }

    .btn-header-cta:hover {
      opacity: 0.92;
      transform: translateY(-1px);
    }

    .nav-toggle-btn {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 6px;
    }

    .nav-toggle-btn span {
      display: block;
      width: 24px;
      height: 2px;
      background-color: var(--text-main);
      margin: 5px 0;
      transition: var(--transition-fast);
    }

    /* 区域通用结构 */
    .section-wrap {
      padding: 70px 0;
      position: relative;
    }

    .section-wrap:nth-child(even) {
      background: #ffffff;
    }

    .section-wrap:nth-child(odd) {
      background: var(--bg-page);
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 44px;
    }

    .section-eyebrow {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      color: var(--primary-cyan);
      letter-spacing: 1px;
      text-transform: uppercase;
      background: #e6f6f6;
      border: 1px solid var(--border-color);
      padding: 4px 12px;
      border-radius: 20px;
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 14px;
    }

    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 首屏 HERO - 严禁图片，采用纯CSS、几何科技元素与高质感渐变 */
    .hero-section {
      padding: 80px 0 70px;
      background: radial-gradient(circle at 80% 20%, #e0f7f6 0%, #f4fbfa 50%, #e8f7f6 100%);
      border-bottom: 1px solid var(--border-color);
      position: relative;
      overflow: hidden;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }

    .hero-badge-row {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 20px;
      flex-wrap: wrap;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      background: #ffffff;
      border: 1px solid var(--border-color);
      color: var(--primary-dark-cyan);
      font-size: 13px;
      font-weight: 600;
      padding: 6px 14px;
      border-radius: 24px;
      box-shadow: var(--box-shadow-sm);
    }

    .hero-badge-highlight {
      background: var(--cyan-gradient);
      color: #ffffff;
      border: none;
    }

    .hero-title {
      font-size: 40px;
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-title span {
      color: var(--primary-cyan);
      background: linear-gradient(135deg, #0fa4a8 0%, #0369a1 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-subtitle {
      font-size: 17px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 32px;
    }

    .hero-cta-group {
      display: flex;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 36px;
    }

    .btn-main-hero {
      padding: 14px 32px;
      background: var(--cyan-gradient);
      color: #ffffff;
      font-size: 16px;
      font-weight: 700;
      border-radius: 10px;
      box-shadow: 0 8px 20px rgba(15, 164, 168, 0.3);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .btn-main-hero:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 26px rgba(15, 164, 168, 0.38);
    }

    .btn-sub-hero {
      padding: 13px 26px;
      background: #ffffff;
      color: var(--text-main);
      font-size: 15px;
      font-weight: 600;
      border-radius: 10px;
      border: 1px solid var(--border-color);
      box-shadow: var(--box-shadow-sm);
    }

    .btn-sub-hero:hover {
      border-color: var(--primary-cyan);
      color: var(--primary-cyan);
      background: #f7fdfd;
    }

    .hero-stats-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      border-top: 1px dashed var(--border-color);
      padding-top: 24px;
    }

    .stat-item-num {
      font-size: 24px;
      font-weight: 800;
      color: var(--primary-cyan);
    }

    .stat-item-label {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 首屏纯CSS科技面板展示 */
    .hero-board-panel {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 24px;
      box-shadow: var(--box-shadow-lg);
      position: relative;
    }

    .hero-panel-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid var(--border-light);
      padding-bottom: 14px;
      margin-bottom: 18px;
    }

    .panel-dots {
      display: flex;
      gap: 6px;
    }

    .panel-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: #cbd5e1;
    }

    .panel-dot:nth-child(1) { background: #f87171; }
    .panel-dot:nth-child(2) { background: #fbbf24; }
    .panel-dot:nth-child(3) { background: #34d399; }

    .panel-status-tag {
      font-size: 12px;
      font-weight: 600;
      color: var(--primary-cyan);
      background: #e6f8f8;
      padding: 3px 10px;
      border-radius: 20px;
    }

    .panel-metric-cards {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-bottom: 18px;
    }

    .panel-card-mini {
      background: var(--bg-card-subtle);
      border: 1px solid var(--border-color);
      padding: 12px;
      border-radius: 10px;
    }

    .panel-card-title {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 4px;
    }

    .panel-card-val {
      font-size: 18px;
      font-weight: 700;
      color: var(--primary-dark-cyan);
    }

    .panel-workflow-stack {
      background: #f8fafc;
      border-radius: 10px;
      padding: 14px;
      border: 1px dashed var(--border-color);
    }

    .workflow-flow-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 13px;
      padding: 6px 0;
      color: var(--text-main);
      border-bottom: 1px solid #edf2f7;
    }

    .workflow-flow-item:last-child {
      border-bottom: none;
    }

    .flow-tag {
      font-size: 11px;
      padding: 2px 6px;
      border-radius: 4px;
      background: #e0f2fe;
      color: #0369a1;
      font-weight: 600;
    }

    /* 平台矩阵标签云 */
    .platform-tags-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      justify-content: center;
      margin-top: 24px;
    }

    .model-chip {
      background: #ffffff;
      border: 1px solid var(--border-color);
      color: var(--text-main);
      font-size: 12px;
      padding: 6px 14px;
      border-radius: 20px;
      font-weight: 600;
      transition: var(--transition-fast);
    }

    .model-chip:hover {
      border-color: var(--primary-cyan);
      color: var(--primary-cyan);
      transform: translateY(-2px);
    }

    /* 模块：关于我们与平台介绍 */
    .platform-intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      align-items: center;
    }

    .intro-feature-list {
      display: grid;
      grid-template-columns: 1fr;
      gap: 16px;
    }

    .intro-feature-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 20px;
      border-radius: var(--border-radius);
      box-shadow: var(--box-shadow-sm);
      display: flex;
      align-items: flex-start;
      gap: 16px;
      transition: var(--transition-fast);
    }

    .intro-feature-item:hover {
      box-shadow: var(--box-shadow-md);
      border-color: var(--primary-cyan);
      transform: translateY(-2px);
    }

    .intro-feature-icon {
      width: 44px;
      height: 44px;
      background: #e6f6f6;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary-cyan);
      font-size: 20px;
      flex-shrink: 0;
      font-weight: bold;
    }

    .intro-feature-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .intro-feature-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* AIGC 服务卡片矩阵 */
    .service-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

    .service-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--border-radius);
      padding: 24px;
      box-shadow: var(--box-shadow-sm);
      display: flex;
      flex-direction: column;
      transition: var(--transition-fast);
      position: relative;
    }

    .service-card:hover {
      box-shadow: var(--box-shadow-md);
      border-color: var(--primary-cyan);
      transform: translateY(-3px);
    }

    .service-card-tag {
      position: absolute;
      top: 18px;
      right: 18px;
      font-size: 11px;
      font-weight: 600;
      color: var(--primary-cyan);
      background: #eef9f9;
      border: 1px solid var(--border-color);
      padding: 2px 8px;
      border-radius: 12px;
    }

    .service-icon-box {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: var(--cyan-gradient-subtle);
      border: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
      color: var(--primary-cyan);
      font-size: 20px;
      font-weight: bold;
    }

    .service-card-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .service-card-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
      margin-bottom: 16px;
    }

    .service-card-footer {
      border-top: 1px dashed var(--border-light);
      padding-top: 12px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
      color: var(--primary-cyan);
      font-weight: 600;
    }

    /* 一站式制作全流程 */
    .flow-steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .step-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--border-radius);
      padding: 24px 20px;
      position: relative;
      box-shadow: var(--box-shadow-sm);
    }

    .step-badge {
      font-size: 14px;
      font-weight: 800;
      color: var(--primary-cyan);
      background: #e6f7f7;
      display: inline-block;
      padding: 4px 10px;
      border-radius: 6px;
      margin-bottom: 12px;
    }

    .step-title {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .step-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 行业方案与场景 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

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

    .scenario-title {
      font-size: 19px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .scenario-title::before {
      content: "";
      display: inline-block;
      width: 4px;
      height: 18px;
      background: var(--primary-cyan);
      border-radius: 2px;
    }

    .scenario-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin: 12px 0 16px;
    }

    .scenario-tag-item {
      background: #f1f8f8;
      border: 1px solid var(--border-color);
      font-size: 12px;
      color: var(--primary-dark-cyan);
      padding: 3px 10px;
      border-radius: 4px;
      font-weight: 500;
    }

    .scenario-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 案例中心 & 真实素材展示 (非首屏) */
    .case-materials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-bottom: 32px;
    }

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

    .media-img-wrap {
      aspect-ratio: 16 / 9;
      background: #eef7f7;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .media-img-wrap.square {
      aspect-ratio: 1 / 1;
    }

    .media-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition-fast);
    }

    .media-card:hover .media-img-wrap img {
      transform: scale(1.03);
    }

    .media-info {
      padding: 18px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .media-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .media-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 官方宣传图组 (非首屏) */
    .banner-gallery-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 24px;
    }

    .banner-item-wrap {
      border-radius: 10px;
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--box-shadow-sm);
    }

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

    /* 对比评测 板块 (评级五星，9.9分 / 满分10分) */
    .rating-banner {
      background: linear-gradient(135deg, #0f766e 0%, #0891b2 100%);
      color: #ffffff;
      border-radius: var(--border-radius);
      padding: 28px 36px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 28px;
      box-shadow: var(--box-shadow-md);
      flex-wrap: wrap;
      gap: 20px;
    }

    .rating-score-box {
      display: flex;
      align-items: baseline;
      gap: 10px;
    }

    .score-num {
      font-size: 48px;
      font-weight: 900;
      line-height: 1;
      color: #ffffff;
    }

    .score-max {
      font-size: 18px;
      opacity: 0.85;
    }

    .rating-stars {
      color: #facc15;
      font-size: 20px;
      letter-spacing: 2px;
      margin-top: 4px;
    }

    .rating-info-title {
      font-size: 22px;
      font-weight: 800;
      margin-bottom: 6px;
    }

    .rating-info-desc {
      font-size: 14px;
      opacity: 0.9;
    }

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

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

    .comparison-table th,
    .comparison-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-light);
    }

    .comparison-table th {
      background: #edf8f8;
      font-weight: 700;
      color: var(--text-main);
    }

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

    .comparison-table .feature-col {
      width: 22%;
      font-weight: 600;
    }

    .comparison-table .jingxuan-col {
      width: 40%;
      background: #f4fbfb;
      font-weight: 600;
      color: var(--primary-dark-cyan);
    }

    .comparison-table .traditional-col {
      width: 38%;
      color: var(--text-muted);
    }

    /* Token 比价与算力模型表 */
    .token-price-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .price-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--border-radius);
      padding: 26px;
      box-shadow: var(--box-shadow-sm);
      text-align: center;
      transition: var(--transition-fast);
      position: relative;
    }

    .price-card.featured {
      border-color: var(--primary-cyan);
      box-shadow: var(--box-shadow-md);
      transform: translateY(-4px);
      background: linear-gradient(180deg, #ffffff 0%, #f4fcfc 100%);
    }

    .featured-badge {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--cyan-gradient);
      color: #ffffff;
      font-size: 12px;
      font-weight: 700;
      padding: 3px 14px;
      border-radius: 12px;
    }

    .price-name {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .price-amount {
      font-size: 32px;
      font-weight: 900;
      color: var(--primary-cyan);
      margin: 14px 0 6px;
    }

    .price-unit {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 16px;
    }

    .price-feature-list {
      list-style: none;
      text-align: left;
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 24px;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .price-feature-list li {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .price-feature-list li::before {
      content: "✓";
      color: var(--primary-cyan);
      font-weight: bold;
    }

    /* 用户评论 (6条精选用户) */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

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

    .user-quote {
      font-size: 14px;
      color: var(--text-main);
      line-height: 1.7;
      margin-bottom: 18px;
      font-style: normal;
    }

    .user-profile {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px dashed var(--border-light);
      padding-top: 14px;
    }

    .avatar-placeholder {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--cyan-gradient-subtle);
      border: 1px solid var(--border-color);
      color: var(--primary-cyan);
      font-weight: 700;
      font-size: 15px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .user-name {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
    }

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

    /* 加盟代理板块 (躺赚被动收入) */
    .agent-box {
      background: linear-gradient(135deg, #f0fbfb 0%, #e0f6f5 100%);
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 40px;
      box-shadow: var(--box-shadow-sm);
    }

    .agent-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 36px;
      align-items: center;
    }

    .agent-title {
      font-size: 26px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 14px;
    }

    .agent-desc {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 22px;
    }

    .agent-perks {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      margin-bottom: 24px;
    }

    .perk-item {
      background: #ffffff;
      padding: 12px 14px;
      border-radius: 8px;
      border: 1px solid var(--border-color);
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .perk-item span {
      color: var(--primary-cyan);
    }

    .agent-action-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 26px;
      text-align: center;
      box-shadow: var(--box-shadow-md);
    }

    /* 常见问题 FAQ (>=10项) */
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: var(--box-shadow-sm);
      transition: var(--transition-fast);
    }

    .faq-question {
      width: 100%;
      background: none;
      border: none;
      text-align: left;
      padding: 18px 22px;
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }

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

    .faq-toggle-icon {
      font-size: 18px;
      font-weight: bold;
      color: var(--primary-cyan);
      transition: transform 0.25s ease;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background: #fafdfd;
      border-top: 1px solid transparent;
    }

    .faq-item.active .faq-answer {
      border-top-color: var(--border-light);
    }

    .faq-answer-inner {
      padding: 16px 22px 20px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 行业资讯 & 最新文章 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-bottom: 24px;
    }

    .article-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--border-radius);
      padding: 22px;
      box-shadow: var(--box-shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .article-card:hover {
      border-color: var(--primary-cyan);
      box-shadow: var(--box-shadow-md);
      transform: translateY(-2px);
    }

    .article-tag {
      font-size: 12px;
      font-weight: 600;
      color: var(--primary-cyan);
      margin-bottom: 8px;
    }

    .article-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
      line-height: 1.4;
    }

    .article-summary {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }

    .article-link {
      font-size: 13px;
      font-weight: 600;
      color: var(--primary-dark-cyan);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .article-shortcode-box {
      margin-top: 20px;
      background: #edf8f8;
      border: 1px dashed var(--border-color);
      padding: 16px;
      border-radius: 8px;
      font-size: 14px;
      color: var(--text-muted);
      text-align: center;
    }

    /* 联系我们与表单提交 */
    .contact-grid {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 36px;
      align-items: flex-start;
    }

    .contact-details-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--border-radius);
      padding: 30px;
      box-shadow: var(--box-shadow-sm);
    }

    .contact-title {
      font-size: 22px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
    }

    .contact-desc {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 24px;
      line-height: 1.6;
    }

    .contact-info-list {
      display: flex;
      flex-direction: column;
      gap: 14px;
      margin-bottom: 24px;
    }

    .contact-info-item {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 14px;
      color: var(--text-main);
    }

    .contact-icon {
      width: 36px;
      height: 36px;
      background: #e6f6f6;
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary-cyan);
      font-weight: 700;
      flex-shrink: 0;
    }

    .contact-qr-wrap {
      border-top: 1px dashed var(--border-color);
      padding-top: 20px;
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .qr-img-box {
      width: 110px;
      height: 110px;
      border-radius: 8px;
      border: 1px solid var(--border-color);
      overflow: hidden;
      padding: 4px;
      background: #ffffff;
    }

    .qr-text-info {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    .contact-form-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--border-radius);
      padding: 32px;
      box-shadow: var(--box-shadow-md);
    }

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

    .form-label {
      display: block;
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      font-size: 14px;
      color: var(--text-main);
      background: #ffffff;
      transition: var(--transition-fast);
      outline: none;
    }

    .form-control:focus {
      border-color: var(--primary-cyan);
      box-shadow: 0 0 0 3px rgba(15, 164, 168, 0.15);
    }

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

    .btn-submit {
      width: 100%;
      padding: 14px;
      background: var(--cyan-gradient);
      color: #ffffff;
      font-size: 15px;
      font-weight: 700;
      border: none;
      border-radius: 8px;
      cursor: pointer;
      box-shadow: 0 6px 18px rgba(15, 164, 168, 0.25);
      transition: var(--transition-fast);
    }

    .btn-submit:hover {
      opacity: 0.94;
      transform: translateY(-1px);
    }

    /* 友情链接与底部导航 (统一宽度与浅色底深色字要求) */
    .friend-links-bar {
      background: #edf8f8;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      padding: 18px 0;
    }

    .friend-links-inner {
      display: flex;
      align-items: center;
      gap: 14px;
      flex-wrap: wrap;
      font-size: 13px;
      color: var(--text-muted);
    }

    .friend-label {
      font-weight: 700;
      color: var(--text-main);
    }

    .friend-links-inner a {
      color: var(--primary-dark-cyan);
      text-decoration: none;
      padding: 2px 8px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 4px;
    }

    .friend-links-inner a:hover {
      background: var(--primary-cyan);
      color: #ffffff;
      border-color: var(--primary-cyan);
    }

    /* 页脚 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 40px 0 28px;
      color: var(--text-main);
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr;
      gap: 32px;
      margin-bottom: 30px;
    }

    .footer-brand-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-top: 12px;
      max-width: 360px;
    }

    .footer-col-title {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 14px;
    }

    .footer-nav-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
      font-size: 13px;
    }

    .footer-nav-list a {
      color: var(--text-muted);
    }

    .footer-nav-list a:hover {
      color: var(--primary-cyan);
    }

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

    .footer-copyright {
      color: var(--text-muted);
    }

    /* 悬浮客服与返回顶部组件 */
    .floating-widget-group {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .floating-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: 0 4px 14px rgba(0,0,0,0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      color: var(--primary-cyan);
      font-size: 14px;
      font-weight: 700;
      transition: var(--transition-fast);
      position: relative;
    }

    .floating-btn:hover {
      background: var(--primary-cyan);
      color: #ffffff;
      transform: translateY(-2px);
    }

    .floating-btn.cta-btn {
      background: var(--cyan-gradient);
      color: #ffffff;
      border: none;
    }

    .floating-qr-pop {
      display: none;
      position: absolute;
      right: 58px;
      bottom: 0;
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 12px;
      border-radius: 10px;
      box-shadow: var(--box-shadow-md);
      width: 140px;
      text-align: center;
    }

    .floating-btn:hover .floating-qr-pop {
      display: block;
    }

    /* 响应式调整 */
    @media (max-width: 992px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .platform-intro-grid {
        grid-template-columns: 1fr;
      }
      .service-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .flow-steps-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .case-materials-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .token-price-grid {
        grid-template-columns: 1fr;
      }
      .testimonials-grid {
        grid-template-columns: 1fr;
      }
      .agent-grid {
        grid-template-columns: 1fr;
      }
      .contact-grid {
        grid-template-columns: 1fr;
      }
      .footer-top-grid {
        grid-template-columns: 1fr;
      }
      .banner-gallery-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .header-inner {
        height: 60px;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 16px 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--box-shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        padding: 10px 0;
        border-bottom: 1px solid var(--border-light);
      }
      .nav-toggle-btn {
        display: block;
      }
      .service-grid,
      .flow-steps-grid,
      .scenario-grid,
      .case-materials-grid,
      .articles-grid {
        grid-template-columns: 1fr;
      }
      .hero-title {
        font-size: 28px;
      }
      .section-title {
        font-size: 24px;
      }
      .rating-banner {
        flex-direction: column;
        align-items: flex-start;
      }
      .agent-box {
        padding: 24px;
      }
      .agent-perks {
        grid-template-columns: 1fr;
      }
      .banner-gallery-grid {
        grid-template-columns: 1fr 1fr;
      }
    }