:root {
      --primary-yellow: #FFB800;
      --primary-hover: #E5A600;
      --yellow-light: #FFF9E6;
      --yellow-glow: rgba(255, 184, 0, 0.2);
      --dark-slate: #0F172A;
      --navy-deep: #1E293B;
      --text-main: #334155;
      --text-muted: #64748B;
      --bg-light: #FAFAF8;
      --bg-card: #FFFFFF;
      --border-color: #E2E8F0;
      --border-yellow: #FDE68A;
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
      --shadow-yellow: 0 10px 25px rgba(255, 184, 0, 0.25);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --container-max: 1200px;
      --transition: all 0.28s ease;
    }

    * {
      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, "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 {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }

    ul, ol {
      list-style: none;
    }

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

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

    /* 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: 2px solid var(--border-yellow);
      box-shadow: var(--shadow-sm);
    }

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

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

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

    .brand-text {
      font-size: 20px;
      font-weight: 800;
      color: var(--dark-slate);
      letter-spacing: -0.5px;
    }

    .brand-tag {
      background: var(--primary-yellow);
      color: var(--dark-slate);
      font-size: 11px;
      font-weight: 700;
      padding: 2px 8px;
      border-radius: 4px;
      margin-left: 6px;
    }

    .nav-menu {
      display: flex;
      align-items: center;
    }

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

    .nav-links li a {
      display: inline-block;
      padding: 8px 14px;
      font-size: 14.5px;
      font-weight: 600;
      color: var(--navy-deep);
      border-radius: var(--radius-sm);
      transition: var(--transition);
    }

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

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

    .btn-nav-portal {
      background: var(--primary-yellow);
      color: var(--dark-slate);
      font-weight: 700;
      padding: 9px 20px;
      border-radius: var(--radius-sm);
      box-shadow: 0 4px 12px var(--yellow-glow);
      font-size: 14px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .btn-nav-portal:hover {
      background: var(--primary-hover);
      transform: translateY(-1px);
    }

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

    .mobile-toggle span {
      display: block;
      width: 24px;
      height: 3px;
      background: var(--dark-slate);
      margin: 4px 0;
      border-radius: 2px;
      transition: var(--transition);
    }

    /* 按钮全局样式 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 28px;
      font-size: 15px;
      font-weight: 700;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: none;
      transition: var(--transition);
      text-align: center;
    }

    .btn-primary {
      background: var(--primary-yellow);
      color: var(--dark-slate);
      box-shadow: var(--shadow-yellow);
    }

    .btn-primary:hover {
      background: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 12px 28px rgba(255, 184, 0, 0.35);
    }

    .btn-secondary {
      background: #FFFFFF;
      color: var(--dark-slate);
      border: 1.5px solid var(--border-color);
    }

    .btn-secondary:hover {
      border-color: var(--primary-yellow);
      background: var(--yellow-light);
      transform: translateY(-2px);
    }

    .btn-dark {
      background: var(--dark-slate);
      color: #FFFFFF;
    }

    .btn-dark:hover {
      background: var(--navy-deep);
      transform: translateY(-2px);
    }

    /* Section 通用规范 */
    .section-padding {
      padding: 80px 0;
    }

    .section-alt {
      background-color: #FFFFFF;
    }

    .section-head {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 50px auto;
    }

    .section-badge {
      display: inline-block;
      background: var(--yellow-light);
      border: 1px solid var(--border-yellow);
      color: #B45309;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 14px;
      border-radius: 30px;
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

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

    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 首屏 Hero 区域 (绝无图片) */
    .hero-section {
      padding: 90px 0 80px 0;
      background: linear-gradient(180deg, #FFFBEB 0%, #FFFFFF 100%);
      border-bottom: 1px solid var(--border-color);
      position: relative;
    }

    .hero-content {
      text-align: center;
      max-width: 920px;
      margin: 0 auto;
    }

    .hero-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #FEF3C7;
      border: 1.5px solid var(--primary-yellow);
      padding: 6px 18px;
      border-radius: 30px;
      font-size: 13px;
      font-weight: 700;
      color: #92400E;
      margin-bottom: 24px;
    }

    .hero-title {
      font-size: 42px;
      font-weight: 900;
      color: var(--dark-slate);
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-title .highlight {
      background: linear-gradient(120deg, var(--primary-yellow) 0%, #F59E0B 100%);
      padding: 2px 10px;
      border-radius: 6px;
      color: var(--dark-slate);
    }

    .hero-lead {
      font-size: 18px;
      color: var(--text-main);
      max-width: 800px;
      margin: 0 auto 36px auto;
      line-height: 1.7;
    }

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

    .hero-features-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      background: #FFFFFF;
      border: 2px solid var(--border-yellow);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-md);
    }

    .hero-feat-item {
      text-align: left;
      border-right: 1px solid var(--border-color);
      padding-right: 16px;
    }

    .hero-feat-item:last-child {
      border-right: none;
      padding-right: 0;
    }

    .hero-feat-num {
      font-size: 26px;
      font-weight: 900;
      color: var(--dark-slate);
      display: flex;
      align-items: baseline;
      gap: 4px;
    }

    .hero-feat-num span {
      color: #D97706;
      font-size: 14px;
    }

    .hero-feat-label {
      font-size: 13px;
      color: var(--text-muted);
      font-weight: 600;
      margin-top: 4px;
    }

    /* 平台支持模型标签流 */
    .models-bar-section {
      background: var(--dark-slate);
      color: #FFFFFF;
      padding: 30px 0;
    }

    .models-bar-inner {
      display: flex;
      flex-direction: column;
      gap: 16px;
      text-align: center;
    }

    .models-bar-title {
      font-size: 13px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--primary-yellow);
    }

    .models-tags-wrap {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 8px;
    }

    .model-tag {
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.15);
      color: #E2E8F0;
      font-size: 12px;
      font-weight: 600;
      padding: 5px 12px;
      border-radius: 20px;
      transition: var(--transition);
    }

    .model-tag:hover {
      background: var(--primary-yellow);
      color: var(--dark-slate);
      border-color: var(--primary-yellow);
    }

    /* 卡片通用 Grid */
    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
    }

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

    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    /* 关于我们 / 平台介绍 */
    .about-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }

    .about-lead {
      font-size: 16px;
      line-height: 1.8;
      color: var(--text-main);
      margin-bottom: 20px;
    }

    .about-points {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
      margin-top: 24px;
    }

    .about-point-item {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 14px;
      font-weight: 600;
      color: var(--navy-deep);
    }

    .point-dot {
      width: 8px;
      height: 8px;
      background: var(--primary-yellow);
      border-radius: 50%;
      margin-top: 7px;
      flex-shrink: 0;
    }

    /* 服务能力卡片 */
    .service-card {
      background: #FFFFFF;
      border: 1.5px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

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

    .service-icon-box {
      width: 48px;
      height: 48px;
      background: var(--yellow-light);
      border: 1px solid var(--border-yellow);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      font-weight: 800;
      color: #92400E;
      margin-bottom: 18px;
    }

    .service-card-title {
      font-size: 18px;
      font-weight: 800;
      color: var(--dark-slate);
      margin-bottom: 10px;
    }

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

    .service-card-badge {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      color: #B45309;
      background: #FEF3C7;
      padding: 3px 10px;
      border-radius: 4px;
      width: fit-content;
    }

    /* 行业方案与场景矩阵 */
    .scene-box {
      background: var(--bg-light);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: var(--transition);
    }

    .scene-box:hover {
      background: #FFFFFF;
      border-color: var(--primary-yellow);
      box-shadow: var(--shadow-sm);
    }

    .scene-title {
      font-size: 16px;
      font-weight: 800;
      color: var(--dark-slate);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .scene-desc {
      font-size: 13.5px;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 案例中心 */
    .case-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

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

    .case-img-wrap {
      width: 100%;
      aspect-ratio: 16 / 9;
      background: #F1F5F9;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }

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

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

    .case-card:hover .case-img-wrap img {
      transform: scale(1.04);
    }

    .case-info {
      padding: 20px;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .case-title {
      font-size: 16px;
      font-weight: 800;
      color: var(--dark-slate);
    }

    .case-desc {
      font-size: 13.5px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 标准流程时间线 */
    .flow-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      position: relative;
    }

    .flow-step {
      background: #FFFFFF;
      border: 1.5px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px 18px;
      position: relative;
      text-align: center;
    }

    .flow-step-num {
      width: 36px;
      height: 36px;
      background: var(--primary-yellow);
      color: var(--dark-slate);
      font-weight: 900;
      font-size: 15px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 12px auto;
    }

    .flow-step-title {
      font-size: 15px;
      font-weight: 800;
      color: var(--dark-slate);
      margin-bottom: 6px;
    }

    .flow-step-desc {
      font-size: 12.5px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 对比评测卡片与表格 */
    .eval-highlight-banner {
      background: linear-gradient(135deg, #FFFBEB 0%, #FEF3C7 100%);
      border: 2px solid var(--primary-yellow);
      border-radius: var(--radius-md);
      padding: 28px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
      margin-bottom: 30px;
    }

    .eval-score-box {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .eval-score-circle {
      width: 72px;
      height: 72px;
      background: var(--primary-yellow);
      color: var(--dark-slate);
      border-radius: 50%;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      box-shadow: 0 4px 12px rgba(255, 184, 0, 0.4);
    }

    .eval-score-val {
      font-size: 22px;
      line-height: 1;
    }

    .eval-score-max {
      font-size: 11px;
      opacity: 0.85;
    }

    .eval-meta h3 {
      font-size: 20px;
      font-weight: 800;
      color: var(--dark-slate);
      margin-bottom: 4px;
    }

    .eval-stars {
      color: #D97706;
      font-size: 16px;
      font-weight: 700;
      letter-spacing: 2px;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
    }

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

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

    .custom-table th {
      background: #F8FAFC;
      font-weight: 800;
      color: var(--dark-slate);
    }

    .custom-table th.col-highlight,
    .custom-table td.col-highlight {
      background: #FFFDF5;
      font-weight: 700;
      color: #92400E;
    }

    .badge-tag-good {
      display: inline-block;
      background: #DCFCE7;
      color: #166534;
      font-size: 12px;
      font-weight: 700;
      padding: 3px 8px;
      border-radius: 4px;
    }

    .badge-tag-mid {
      display: inline-block;
      background: #F1F5F9;
      color: #475569;
      font-size: 12px;
      padding: 3px 8px;
      border-radius: 4px;
    }

    /* Token 比价看板 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .token-card {
      background: #FFFFFF;
      border: 1.5px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: var(--transition);
    }

    .token-card.featured {
      border-color: var(--primary-yellow);
      background: #FFFDF8;
      box-shadow: var(--shadow-md);
    }

    .token-head {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 14px;
    }

    .token-name {
      font-size: 17px;
      font-weight: 800;
      color: var(--dark-slate);
    }

    .token-price {
      font-size: 22px;
      font-weight: 900;
      color: #D97706;
      margin-bottom: 10px;
    }

    .token-price span {
      font-size: 12px;
      color: var(--text-muted);
      font-weight: 500;
    }

    .token-features {
      font-size: 13px;
      color: var(--text-main);
      display: flex;
      flex-direction: column;
      gap: 8px;
      margin-top: 14px;
      padding-top: 14px;
      border-top: 1px dashed var(--border-color);
    }

    /* 用户评论 */
    .review-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;
    }

    .review-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 14px;
    }

    .review-user-info {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .review-avatar {
      width: 42px;
      height: 42px;
      background: var(--yellow-light);
      border: 1.5px solid var(--border-yellow);
      color: #92400E;
      font-weight: 800;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 15px;
    }

    .review-name {
      font-size: 15px;
      font-weight: 800;
      color: var(--dark-slate);
    }

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

    .review-stars {
      color: #F59E0B;
      font-size: 13px;
    }

    .review-body {
      font-size: 14px;
      color: var(--text-main);
      line-height: 1.6;
    }

    /* FAQ 手风琴面板 */
    .faq-container {
      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-sm);
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-item.active {
      border-color: var(--primary-yellow);
      box-shadow: var(--shadow-sm);
    }

    .faq-question {
      padding: 18px 22px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      font-size: 15.5px;
      font-weight: 700;
      color: var(--dark-slate);
      user-select: none;
    }

    .faq-question:hover {
      background: var(--yellow-light);
    }

    .faq-icon {
      width: 20px;
      height: 20px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      color: #B45309;
      transition: var(--transition);
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #FFFDF8;
      padding: 0 22px;
      color: var(--text-main);
      font-size: 14px;
      line-height: 1.65;
    }

    .faq-item.active .faq-answer {
      padding: 14px 22px 20px 22px;
      max-height: 300px;
      border-top: 1px solid var(--border-yellow);
    }

    /* 文章列表 */
    .article-wrap {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
    }

    .article-code-box {
      background: #F8FAFC;
      border-left: 4px solid var(--primary-yellow);
      padding: 14px 18px;
      border-radius: 4px;
      font-size: 14px;
      color: var(--dark-slate);
      margin-bottom: 20px;
    }

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

    .article-link-item {
      background: var(--bg-light);
      border: 1px solid var(--border-color);
      padding: 8px 16px;
      border-radius: var(--radius-sm);
      font-size: 13.5px;
      font-weight: 600;
      color: var(--navy-deep);
    }

    .article-link-item:hover {
      border-color: var(--primary-yellow);
      background: var(--yellow-light);
      color: #92400E;
    }

    /* 需求匹配与表单板块 */
    .form-section-wrap {
      background: #FFFFFF;
      border: 2px solid var(--border-yellow);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }

    .form-grid-inner {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
    }

    .form-info-col h3 {
      font-size: 24px;
      font-weight: 800;
      color: var(--dark-slate);
      margin-bottom: 14px;
    }

    .contact-item-group {
      display: flex;
      flex-direction: column;
      gap: 14px;
      margin: 24px 0;
    }

    .contact-info-row {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14.5px;
      color: var(--text-main);
    }

    .contact-badge {
      background: var(--yellow-light);
      color: #92400E;
      font-weight: 700;
      font-size: 12px;
      padding: 3px 8px;
      border-radius: 4px;
      min-width: 70px;
      text-align: center;
    }

    .qr-showcase {
      display: flex;
      align-items: center;
      gap: 16px;
      background: var(--yellow-light);
      border: 1px solid var(--border-yellow);
      padding: 16px;
      border-radius: var(--radius-md);
      margin-top: 20px;
    }

    .qr-showcase img {
      width: 90px;
      height: 90px;
      border-radius: 6px;
      border: 1px solid #FFFFFF;
      background: #FFFFFF;
    }

    .qr-text h4 {
      font-size: 15px;
      font-weight: 800;
      color: var(--dark-slate);
      margin-bottom: 4px;
    }

    .qr-text p {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 需求表单 */
    .form-box {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

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

    .form-label {
      font-size: 13.5px;
      font-weight: 700;
      color: var(--dark-slate);
    }

    .form-input,
    .form-select,
    .form-textarea {
      width: 100%;
      padding: 11px 14px;
      border: 1.5px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 14px;
      color: var(--dark-slate);
      background: #FFFFFF;
      outline: none;
      transition: var(--transition);
      font-family: inherit;
    }

    .form-input:focus,
    .form-select:focus,
    .form-textarea:focus {
      border-color: var(--primary-yellow);
      box-shadow: 0 0 0 3px var(--yellow-glow);
    }

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

    /* 加盟代理与算力分发 */
    .agent-banner {
      background: linear-gradient(135deg, var(--dark-slate) 0%, #1E293B 100%);
      color: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 44px;
      display: grid;
      grid-template-columns: 1.4fr 1fr;
      gap: 36px;
      align-items: center;
    }

    .agent-title {
      font-size: 28px;
      font-weight: 800;
      color: var(--primary-yellow);
      margin-bottom: 12px;
    }

    .agent-desc {
      font-size: 15px;
      color: #CBD5E1;
      line-height: 1.7;
      margin-bottom: 24px;
    }

    .agent-perks {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
    }

    .agent-perk-item {
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.12);
      padding: 12px;
      border-radius: var(--radius-sm);
      font-size: 13.5px;
      color: #F8FAFC;
    }

    /* 友情链接 */
    .friends-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
    }

    .friends-links-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .friends-links-wrap a {
      display: inline-block;
      background: var(--bg-light);
      border: 1px solid var(--border-color);
      padding: 6px 14px;
      border-radius: var(--radius-sm);
      font-size: 13px;
      font-weight: 600;
      color: var(--navy-deep);
    }

    .friends-links-wrap a:hover {
      background: var(--primary-yellow);
      color: var(--dark-slate);
      border-color: var(--primary-yellow);
    }

    /* 页脚 */
    .site-footer {
      background: var(--dark-slate);
      color: #94A3B8;
      padding: 50px 0 30px 0;
      border-top: 3px solid var(--primary-yellow);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 36px;
      margin-bottom: 40px;
    }

    .footer-col h4 {
      color: #FFFFFF;
      font-size: 15px;
      font-weight: 800;
      margin-bottom: 16px;
      position: relative;
    }

    .footer-col h4::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: -6px;
      width: 24px;
      height: 2px;
      background: var(--primary-yellow);
    }

    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 9px;
      font-size: 13.5px;
    }

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

    .footer-bottom {
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 13px;
    }

    .footer-bottom a {
      color: var(--primary-yellow);
    }

    /* 浮动工具栏 */
    .floating-toolbar {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 46px;
      height: 46px;
      background: #FFFFFF;
      border: 1.5px solid var(--border-yellow);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-md);
      cursor: pointer;
      color: var(--dark-slate);
      font-weight: 900;
      font-size: 14px;
      transition: var(--transition);
    }

    .float-btn:hover {
      background: var(--primary-yellow);
      transform: translateY(-3px);
    }

    .float-btn-top {
      display: none;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }
      .flow-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .agent-banner {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .hero-title {
        font-size: 30px;
      }
      .hero-features-bar {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-3, .grid-2 {
        grid-template-columns: 1fr;
      }
      .flow-grid {
        grid-template-columns: 1fr;
      }
      .form-grid-inner {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .eval-highlight-banner {
        flex-direction: column;
        align-items: flex-start;
      }
      .mobile-toggle {
        display: block;
      }
      .nav-menu {
        position: fixed;
        top: 76px;
        left: 0;
        width: 100%;
        background: #FFFFFF;
        border-bottom: 2px solid var(--border-yellow);
        padding: 20px;
        flex-direction: column;
        display: none;
        box-shadow: var(--shadow-md);
      }
      .nav-menu.active {
        display: flex;
      }
      .nav-links {
        flex-direction: column;
        width: 100%;
      }
      .nav-links li {
        width: 100%;
        text-align: center;
      }
      .nav-links li a {
        display: block;
        padding: 10px;
      }
    }