:root {
      --primary-yellow: #FFC700;
      --primary-yellow-hover: #E5B200;
      --yellow-light: #FFF9DB;
      --yellow-tint: #FFFDEB;
      --yellow-accent: #FF9800;
      --text-main: #111827;
      --text-sub: #4B5563;
      --text-muted: #6B7280;
      --bg-light: #FAFAFA;
      --bg-card: #FFFFFF;
      --border-color: #E5E7EB;
      --border-yellow: #FFE58F;
      --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
      --shadow-md: 0 10px 25px -5px rgba(255, 199, 0, 0.16), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
      --shadow-lg: 0 20px 30px -10px rgba(255, 199, 0, 0.22);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --transition: all 0.28s ease;
    }

    * {
      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, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
    }

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

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

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 10px rgba(0,0,0,0.03);
    }

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

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

    .ai-page-logo {
      height: 42px;
      width: auto;
      object-fit: contain;
    }

    .brand-title-wrap {
      display: flex;
      flex-direction: column;
    }

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

    .brand-badge {
      font-size: 0.7rem;
      background: var(--primary-yellow);
      color: #111827;
      font-weight: 700;
      padding: 1px 6px;
      border-radius: 4px;
      display: inline-block;
      width: fit-content;
    }

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

    .nav-links li a {
      padding: 8px 14px;
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-sub);
      border-radius: var(--radius-sm);
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--text-main);
      background-color: var(--yellow-light);
    }

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

    .btn-primary-portal {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background-color: var(--primary-yellow);
      color: #111827;
      font-weight: 700;
      font-size: 0.95rem;
      padding: 10px 22px;
      border-radius: 40px;
      border: 2px solid #111827;
      box-shadow: 2px 3px 0px #111827;
      cursor: pointer;
      transition: transform 0.15s ease, box-shadow 0.15s ease;
    }

    .btn-primary-portal:hover {
      transform: translate(-1px, -1px);
      box-shadow: 4px 5px 0px #111827;
      background-color: #FFD000;
    }

    .btn-primary-portal:active {
      transform: translate(2px, 2px);
      box-shadow: 0px 0px 0px #111827;
    }

    .mobile-menu-btn {
      display: none;
      background: transparent;
      border: none;
      font-size: 1.6rem;
      cursor: pointer;
      color: var(--text-main);
    }

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

    .section-bg-alt {
      background: #FFFFFF;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

    .section-header {
      text-align: center;
      margin-bottom: 48px;
    }

    .section-tag {
      display: inline-block;
      background: var(--yellow-light);
      color: #8A6800;
      border: 1px solid var(--border-yellow);
      font-size: 0.8rem;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: 20px;
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.3;
    }

    .section-desc {
      font-size: 1rem;
      color: var(--text-sub);
      max-width: 720px;
      margin: 0 auto;
    }

    /* 首屏 HERO 区域 (严禁出现图片) */
    .hero-section {
      padding: 64px 0 54px;
      background: radial-gradient(circle at 50% 20%, #FFF9D2 0%, #FAFAFA 70%);
      border-bottom: 1px solid var(--border-color);
      position: relative;
      overflow: hidden;
    }

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

    .hero-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #FFFFFF;
      border: 2px solid #111827;
      padding: 6px 18px;
      border-radius: 30px;
      font-weight: 700;
      font-size: 0.88rem;
      box-shadow: 2px 2px 0px #111827;
      margin-bottom: 24px;
    }

    .hero-pill-dot {
      width: 10px;
      height: 10px;
      background: #10B981;
      border-radius: 50%;
      display: inline-block;
      animation: pulseGreen 2s infinite;
    }

    @keyframes pulseGreen {
      0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
      70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
      100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
    }

    .hero-title {
      font-size: 2.6rem;
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-subtitle {
      font-size: 1.15rem;
      color: var(--text-sub);
      line-height: 1.7;
      max-width: 780px;
      margin: 0 auto 36px;
    }

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

    .hero-btn-main {
      font-size: 1.1rem;
      padding: 14px 34px;
      background: var(--primary-yellow);
      color: #111827;
      font-weight: 800;
      border-radius: 40px;
      border: 2px solid #111827;
      box-shadow: 4px 4px 0px #111827;
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .hero-btn-main:hover {
      background: #FFE033;
      transform: translate(-2px, -2px);
      box-shadow: 6px 6px 0px #111827;
    }

    .hero-btn-sub {
      font-size: 1.1rem;
      padding: 14px 30px;
      background: #FFFFFF;
      color: var(--text-main);
      font-weight: 700;
      border-radius: 40px;
      border: 2px solid #D1D5DB;
      transition: var(--transition);
    }

    .hero-btn-sub:hover {
      border-color: #111827;
      background: #F3F4F6;
    }

    /* 纯CSS首屏数据徽章面板 (纯色/几何块/无图片) */
    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      text-align: left;
    }

    .stat-badge-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-top: 4px solid var(--primary-yellow);
      border-radius: var(--radius-md);
      padding: 20px 18px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

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

    .stat-num {
      font-size: 1.8rem;
      font-weight: 900;
      color: #111827;
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .stat-num span {
      color: var(--yellow-accent);
      font-size: 1.1rem;
    }

    .stat-desc {
      font-size: 0.85rem;
      color: var(--text-sub);
      font-weight: 600;
    }

    /* 关于我们 / 平台能力 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: stretch;
    }

    .about-text-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 36px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .about-lead {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
      line-height: 1.4;
    }

    .about-body {
      color: var(--text-sub);
      font-size: 0.98rem;
      margin-bottom: 24px;
      line-height: 1.7;
    }

    .feature-list {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
    }

    .feature-item {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 0.92rem;
      color: var(--text-main);
      font-weight: 600;
    }

    .feature-icon {
      width: 20px;
      height: 20px;
      border-radius: 50%;
      background: var(--primary-yellow);
      color: #111827;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 0.75rem;
      flex-shrink: 0;
      margin-top: 2px;
      font-weight: 900;
    }

    .about-cards-right {
      display: grid;
      grid-template-columns: 1fr;
      gap: 16px;
    }

    .highlight-card {
      background: var(--yellow-tint);
      border: 2px solid var(--border-yellow);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: var(--transition);
    }

    .highlight-card:hover {
      background: #FFF9DB;
      border-color: var(--primary-yellow);
    }

    .highlight-title {
      font-size: 1.1rem;
      font-weight: 800;
      color: #111827;
      margin-bottom: 8px;
    }

    .highlight-p {
      font-size: 0.9rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* 多模型生态展示网格 */
    .model-chip-wall {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 28px;
    }

    .model-chip {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      padding: 8px 16px;
      border-radius: 30px;
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--text-main);
      display: inline-flex;
      align-items: center;
      gap: 6px;
      box-shadow: 0 1px 3px rgba(0,0,0,0.04);
      transition: var(--transition);
    }

    .model-chip:hover {
      border-color: #111827;
      background: var(--yellow-light);
      transform: translateY(-2px);
    }

    .model-chip-hot {
      background: #FFF275;
      border: 1px solid #111827;
    }

    /* 一站式核心创作模块 */
    .services-grid-tri {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      border-bottom: 4px solid #E5E7EB;
    }

    .service-box:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
      border-bottom-color: var(--primary-yellow);
    }

    .service-badge-pill {
      font-size: 0.75rem;
      font-weight: 800;
      background: var(--yellow-light);
      color: #926C00;
      padding: 3px 10px;
      border-radius: 12px;
      display: inline-block;
      width: fit-content;
      margin-bottom: 16px;
    }

    .service-heading {
      font-size: 1.3rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .service-details {
      font-size: 0.92rem;
      color: var(--text-sub);
      line-height: 1.65;
      margin-bottom: 20px;
    }

    .service-feature-tag-list {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }

    .feature-tag-pill {
      font-size: 0.76rem;
      background: #F3F4F6;
      color: #374151;
      padding: 3px 8px;
      border-radius: 4px;
      font-weight: 600;
    }

    /* 行业解决方案矩阵 (卡片群) */
    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }

    .sol-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      transition: var(--transition);
    }

    .sol-card:hover {
      border-color: #111827;
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }

    .sol-card-title {
      font-size: 1.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

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

    .sol-card-content {
      font-size: 0.86rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* 5步标准实施流程 */
    .process-steps-wrap {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 14px;
      position: relative;
    }

    .process-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 18px;
      text-align: center;
      position: relative;
    }

    .step-index-badge {
      width: 44px;
      height: 44px;
      background: var(--primary-yellow);
      color: #111827;
      border: 2px solid #111827;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
      font-weight: 900;
      margin: 0 auto 16px;
      box-shadow: 2px 2px 0px #111827;
    }

    .step-title {
      font-size: 1.05rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .step-text {
      font-size: 0.84rem;
      color: var(--text-sub);
      line-height: 1.55;
    }

    /* 案例中心 (包含真实媒体图片容器) */
    .case-gallery-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 24px;
      margin-bottom: 24px;
    }

    .case-banner-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }

    .img-media-container {
      position: relative;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      background: #FFFFFF;
      box-shadow: var(--shadow-sm);
    }

    .img-media-container img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.35s ease;
    }

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

    .img-caption-box {
      padding: 16px 20px;
      background: #FFFFFF;
    }

    .img-caption-title {
      font-size: 1.05rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .img-caption-desc {
      font-size: 0.85rem;
      color: var(--text-sub);
    }

    /* 对比评测 (严格要求：五星，9.9分 / 10分) */
    .review-score-hero {
      background: linear-gradient(135deg, #FFF9D2 0%, #FFFFFF 100%);
      border: 2px solid #111827;
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: 6px 6px 0px #111827;
      margin-bottom: 32px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
    }

    .score-left-content {
      max-width: 600px;
    }

    .stars-render {
      color: #F59E0B;
      font-size: 1.5rem;
      letter-spacing: 4px;
      margin-bottom: 8px;
    }

    .rating-big-label {
      font-size: 1.8rem;
      font-weight: 900;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .rating-statement {
      font-size: 0.95rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    .score-badge-circle {
      background: var(--primary-yellow);
      border: 3px solid #111827;
      border-radius: 50%;
      width: 140px;
      height: 140px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      box-shadow: 4px 4px 0px #111827;
      text-align: center;
    }

    .score-badge-num {
      font-size: 2.8rem;
      font-weight: 900;
      line-height: 1;
      color: #111827;
    }

    .score-badge-sub {
      font-size: 0.85rem;
      font-weight: 800;
      color: #111827;
    }

    /* 专业对比表格 */
    .table-container-responsive {
      width: 100%;
      overflow-x: auto;
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
    }

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

    .comparison-table th, 
    .comparison-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.92rem;
    }

    .comparison-table th {
      background: #F9FAFB;
      font-weight: 800;
      color: var(--text-main);
    }

    .comparison-table th.col-highlight {
      background: var(--yellow-light);
      color: #111827;
      border-left: 2px solid var(--primary-yellow);
      border-right: 2px solid var(--primary-yellow);
    }

    .comparison-table td.col-highlight {
      background: #FFFDF0;
      font-weight: 700;
      color: #111827;
      border-left: 2px solid var(--border-yellow);
      border-right: 2px solid var(--border-yellow);
    }

    /* Token 比价板块 */
    .token-price-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-top: 24px;
    }

    .price-plan-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      position: relative;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .price-plan-card.featured-plan {
      border: 2px solid #111827;
      box-shadow: 4px 4px 0px #111827;
      background: var(--yellow-tint);
    }

    .plan-top-badge {
      position: absolute;
      top: -12px;
      right: 20px;
      background: #111827;
      color: #FFF;
      font-size: 0.72rem;
      font-weight: 800;
      padding: 3px 10px;
      border-radius: 12px;
    }

    .plan-title {
      font-size: 1.2rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .plan-cost-display {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--text-main);
      margin: 14px 0;
    }

    .plan-cost-display span {
      font-size: 0.88rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    .plan-features-ul {
      list-style: none;
      margin-bottom: 24px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 0.88rem;
      color: var(--text-sub);
    }

    /* 需求匹配与需求提交表单 (?s=index/submitForm) */
    .form-section-layout {
      display: grid;
      grid-template-columns: 1fr 1.1fr;
      gap: 36px;
      align-items: center;
    }

    .form-intro-left {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 36px;
    }

    .form-intro-left h3 {
      font-size: 1.5rem;
      font-weight: 800;
      margin-bottom: 16px;
    }

    .form-intro-left p {
      color: var(--text-sub);
      font-size: 0.95rem;
      line-height: 1.65;
      margin-bottom: 20px;
    }

    .demand-form-card {
      background: #FFFFFF;
      border: 2px solid #111827;
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: 6px 6px 0px #111827;
    }

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

    .form-label {
      display: block;
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 14px;
      border: 1.5px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.92rem;
      color: var(--text-main);
      background: #F9FAFB;
      transition: var(--transition);
      font-family: inherit;
    }

    .form-input:focus, .form-select:focus, .form-textarea:focus {
      outline: none;
      border-color: #111827;
      background: #FFFFFF;
      box-shadow: 0 0 0 3px rgba(255, 199, 0, 0.3);
    }

    .form-textarea {
      min-height: 90px;
      resize: vertical;
    }

    .form-submit-btn {
      width: 100%;
      background: var(--primary-yellow);
      color: #111827;
      font-weight: 800;
      font-size: 1.05rem;
      padding: 14px;
      border: 2px solid #111827;
      border-radius: 40px;
      box-shadow: 3px 3px 0px #111827;
      cursor: pointer;
      transition: var(--transition);
    }

    .form-submit-btn:hover {
      background: #FFD21A;
      transform: translate(-1px, -1px);
      box-shadow: 5px 5px 0px #111827;
    }

    /* 6条真实用户评论卡片 */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

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

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

    .testi-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }

    .testi-avatar-placeholder {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--yellow-light);
      border: 2px solid var(--primary-yellow);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      color: #111827;
    }

    .testi-name {
      font-size: 0.98rem;
      font-weight: 800;
      color: var(--text-main);
    }

    .testi-role {
      font-size: 0.78rem;
      color: var(--text-muted);
    }

    .testi-quote {
      font-size: 0.88rem;
      color: var(--text-sub);
      line-height: 1.6;
      font-style: normal;
    }

    .testi-stars {
      color: #F59E0B;
      font-size: 0.85rem;
      margin-top: 14px;
    }

    /* FAQ 折叠面板 (不少于 10 条) */
    .faq-accordion-wrap {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }

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

    .faq-item.active {
      border-color: #111827;
      box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    }

    .faq-trigger {
      width: 100%;
      padding: 18px 22px;
      background: none;
      border: none;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      text-align: left;
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .faq-chevron {
      font-size: 1.2rem;
      font-weight: 800;
      transition: transform 0.25s ease;
      color: #111827;
    }

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

    .faq-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
      background: #FDFDFD;
    }

    .faq-content-inner {
      padding: 0 22px 18px;
      font-size: 0.92rem;
      color: var(--text-sub);
      line-height: 1.7;
    }

    /* AI百科 & 帮助中心卡片 */
    .wiki-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .wiki-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      transition: var(--transition);
    }

    .wiki-card:hover {
      border-color: var(--primary-yellow);
      background: var(--yellow-tint);
    }

    .wiki-term {
      font-size: 1.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .wiki-explain {
      font-size: 0.88rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* 行业资讯 & 最新文章 */
    .news-section-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
    }

    .article-links-container {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 16px;
    }

    .article-item-link {
      background: #F3F4F6;
      border: 1px solid var(--border-color);
      padding: 10px 18px;
      border-radius: 30px;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-main);
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: var(--transition);
    }

    .article-item-link:hover {
      background: var(--primary-yellow);
      border-color: #111827;
      color: #111827;
    }

    /* 加盟代理与算力被动收益 */
    .agent-cta-box {
      background: linear-gradient(135deg, #FFF6BD 0%, #FFE072 100%);
      border: 2px solid #111827;
      border-radius: var(--radius-lg);
      padding: 44px 36px;
      box-shadow: 6px 6px 0px #111827;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 30px;
      align-items: center;
    }

    .agent-text-wrap h3 {
      font-size: 1.85rem;
      font-weight: 900;
      color: #111827;
      margin-bottom: 12px;
    }

    .agent-text-wrap p {
      font-size: 0.98rem;
      color: #374151;
      line-height: 1.65;
      margin-bottom: 20px;
    }

    .agent-perks {
      display: flex;
      flex-direction: column;
      gap: 8px;
      font-size: 0.92rem;
      font-weight: 700;
      color: #111827;
    }

    .agent-action-box {
      text-align: center;
      background: #FFFFFF;
      padding: 24px;
      border: 2px solid #111827;
      border-radius: var(--radius-md);
      box-shadow: 3px 3px 0px #111827;
    }

    /* 联系我们 */
    .contact-layout-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .contact-card-single {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      text-align: center;
      box-shadow: var(--shadow-sm);
    }

    .qr-container-box {
      width: 140px;
      height: 140px;
      margin: 0 auto 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 6px;
      background: #FAFAFA;
    }

    .qr-container-box img {
      width: 100%;
      height: 100%;
      object-fit: contain;
    }

    .contact-meta-title {
      font-size: 1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .contact-meta-val {
      font-size: 0.88rem;
      color: var(--text-sub);
      word-break: break-all;
    }

    /* 页脚与友情链接 */
    .site-footer {
      background: #111827;
      color: #9CA3AF;
      padding: 50px 0 24px;
      border-top: 4px solid var(--primary-yellow);
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
      gap: 32px;
      margin-bottom: 36px;
    }

    .footer-col-title {
      font-size: 1rem;
      font-weight: 800;
      color: #F9FAFB;
      margin-bottom: 16px;
      position: relative;
    }

    .footer-col-title::after {
      content: '';
      position: absolute;
      bottom: -6px;
      left: 0;
      width: 24px;
      height: 3px;
      background: var(--primary-yellow);
    }

    .footer-desc {
      font-size: 0.86rem;
      line-height: 1.65;
      color: #9CA3AF;
    }

    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 0.88rem;
    }

    .footer-links-list a {
      color: #D1D5DB;
    }

    .footer-links-list a:hover {
      color: var(--primary-yellow);
    }

    .friendly-links-flow {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .friendly-links-flow a {
      font-size: 0.84rem;
      color: #D1D5DB;
      background: #1F2937;
      padding: 4px 10px;
      border-radius: 4px;
      border: 1px solid #374151;
      transition: var(--transition);
    }

    .friendly-links-flow a:hover {
      color: #111827;
      background: var(--primary-yellow);
      border-color: var(--primary-yellow);
    }

    .footer-bottom-bar {
      border-top: 1px solid #374151;
      padding-top: 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 0.82rem;
    }

    .footer-copyright {
      color: #9CA3AF;
    }

    .footer-right-tags {
      display: flex;
      gap: 16px;
    }

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

    .float-btn {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: var(--primary-yellow);
      border: 2px solid #111827;
      box-shadow: 2px 3px 0px #111827;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      font-weight: 900;
      color: #111827;
      font-size: 1.1rem;
      transition: var(--transition);
    }

    .float-btn:hover {
      transform: scale(1.08);
      background: #FFE033;
    }

    /* 响应式适配 */
    @media (max-width: 1024px) {
      .services-grid-tri {
        grid-template-columns: repeat(2, 1fr);
      }
      .solutions-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-steps-wrap {
        grid-template-columns: repeat(3, 1fr);
      }
      .footer-top-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #FFFFFF;
        flex-direction: column;
        align-items: flex-start;
        padding: 16px 20px;
        border-bottom: 2px solid var(--border-color);
        box-shadow: 0 10px 20px rgba(0,0,0,0.08);
      }
      .nav-links.nav-open {
        display: flex;
      }
      .mobile-menu-btn {
        display: block;
      }
      .hero-title {
        font-size: 2rem;
      }
      .hero-stats-grid {
        grid-template-columns: 1fr 1fr;
      }
      .about-grid,
      .form-section-layout,
      .agent-cta-box,
      .case-gallery-grid,
      .case-banner-row {
        grid-template-columns: 1fr;
      }
      .services-grid-tri,
      .solutions-grid,
      .testimonials-grid,
      .wiki-grid,
      .token-price-grid,
      .contact-layout-grid {
        grid-template-columns: 1fr;
      }
      .process-steps-wrap {
        grid-template-columns: 1fr;
      }
      .footer-top-grid {
        grid-template-columns: 1fr;
      }
      .review-score-hero {
        flex-direction: column;
        text-align: center;
      }
      .score-badge-circle {
        margin: 0 auto;
      }
    }