:root {
      --primary-yellow: #f59e0b;
      --primary-hover: #d97706;
      --accent-bright: #fbbf24;
      --light-yellow: #fef3c7;
      --soft-bg: #fffdf5;
      --page-bg: #fdfbf7;
      --card-bg: #ffffff;
      --text-main: #1e293b;
      --text-muted: #64748b;
      --border-color: #f3e8c8;
      --border-hover: #fcd34d;
      --shadow-sm: 0 4px 12px rgba(245, 158, 11, 0.08);
      --shadow-md: 0 10px 25px rgba(217, 119, 6, 0.12);
      --shadow-lg: 0 16px 36px rgba(180, 83, 9, 0.14);
      --container-max: 1200px;
      --radius: 12px;
    }

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

    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--page-bg);
      color: var(--text-main);
    }

    body {
      line-height: 1.6;
      background: radial-gradient(circle at 50% 0%, #fffbeb 0%, #fefce8 25%, #fdfbf7 70%);
      min-height: 100vh;
      overflow-x: hidden;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.25s ease;
    }

    ul {
      list-style: none;
    }

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

    /* 顶部导航 */
    header.site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

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

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

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

    .brand-name {
      font-size: 20px;
      font-weight: 800;
      color: #92400e;
      letter-spacing: -0.5px;
    }

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

    .nav-links li {
      margin: 0;
      padding: 0;
    }

    .nav-links a {
      font-size: 14px;
      font-weight: 600;
      color: #475569;
      padding: 8px 12px;
      border-radius: 6px;
      display: inline-block;
      white-space: nowrap;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: #b45309;
      background-color: var(--light-yellow);
    }

    .nav-cta {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .btn-portal {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
      color: #ffffff !important;
      font-weight: 700;
      font-size: 14px;
      padding: 9px 18px;
      border-radius: 8px;
      box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
      white-space: nowrap;
    }

    .btn-portal:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(217, 119, 6, 0.45);
    }

    .btn-portal-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: #ffffff;
      border: 1px solid #f59e0b;
      color: #b45309 !important;
      font-weight: 700;
      font-size: 14px;
      padding: 8px 16px;
      border-radius: 8px;
      transition: all 0.2s ease;
      white-space: nowrap;
    }

    .btn-portal-outline:hover {
      background: var(--light-yellow);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      cursor: pointer;
      color: #78350f;
    }

    /* 首屏 Hero 区域（严禁出现任何图片） */
    .hero-section {
      padding: 70px 0 60px;
      position: relative;
      background: linear-gradient(180deg, #fffbeb 0%, #fff 100%);
      border-bottom: 1px solid var(--border-color);
      overflow: hidden;
    }

    .hero-glow-1 {
      position: absolute;
      top: -80px;
      left: 10%;
      width: 320px;
      height: 320px;
      background: radial-gradient(circle, rgba(251, 191, 36, 0.35) 0%, rgba(251, 191, 36, 0) 70%);
      filter: blur(40px);
      pointer-events: none;
    }

    .hero-glow-2 {
      position: absolute;
      bottom: -60px;
      right: 15%;
      width: 380px;
      height: 380px;
      background: radial-gradient(circle, rgba(245, 158, 11, 0.25) 0%, rgba(245, 158, 11, 0) 70%);
      filter: blur(50px);
      pointer-events: none;
    }

    .hero-content {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      border-radius: 30px;
      background-color: #fef3c7;
      border: 1px solid #fde68a;
      color: #92400e;
      font-size: 13px;
      font-weight: 700;
      margin-bottom: 20px;
      box-shadow: 0 2px 8px rgba(245, 158, 11, 0.12);
    }

    .hero-title {
      font-size: 38px;
      line-height: 1.25;
      font-weight: 900;
      color: #1e293b;
      margin-bottom: 18px;
      letter-spacing: -0.5px;
    }

    .hero-title span {
      color: #b45309;
      background: linear-gradient(135deg, #d97706 0%, #b45309 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-sub {
      font-size: 17px;
      color: #475569;
      max-width: 760px;
      margin: 0 auto 32px;
      line-height: 1.7;
    }

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

    .btn-hero-main {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
      color: #ffffff;
      font-size: 16px;
      font-weight: 800;
      padding: 15px 36px;
      border-radius: 10px;
      box-shadow: 0 10px 25px rgba(245, 158, 11, 0.4);
      transition: all 0.25s ease;
    }

    .btn-hero-main:hover {
      transform: translateY(-2px);
      box-shadow: 0 14px 30px rgba(217, 119, 6, 0.5);
    }

    .btn-hero-secondary {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      border: 2px solid #f59e0b;
      color: #92400e;
      font-size: 16px;
      font-weight: 700;
      padding: 13px 30px;
      border-radius: 10px;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
    }

    .btn-hero-secondary:hover {
      background: #fffbeb;
      border-color: #d97706;
    }

    /* 首屏数据指标卡（纯几何/CSS布局，不含图片） */
    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      margin-top: 10px;
    }

    .metric-card {
      background: #ffffff;
      border: 1px solid #fef08a;
      border-radius: var(--radius);
      padding: 22px 16px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: transform 0.25s ease, border-color 0.25s ease;
    }

    .metric-card:hover {
      transform: translateY(-4px);
      border-color: #f59e0b;
      box-shadow: var(--shadow-md);
    }

    .metric-num {
      font-size: 32px;
      font-weight: 900;
      color: #b45309;
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .metric-num small {
      font-size: 16px;
      font-weight: 700;
    }

    .metric-label {
      font-size: 13px;
      color: #64748b;
      font-weight: 600;
    }

    /* 模块通用样式 */
    section.page-section {
      padding: 70px 0;
      position: relative;
    }

    .section-alt {
      background-color: #ffffff;
      border-top: 1px solid #f1f5f9;
      border-bottom: 1px solid #f1f5f9;
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 46px;
    }

    .section-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: #b45309;
      background: #fef3c7;
      padding: 4px 14px;
      border-radius: 20px;
      margin-bottom: 12px;
      border: 1px solid #fde68a;
    }

    .section-title {
      font-size: 30px;
      font-weight: 800;
      color: #1e293b;
      line-height: 1.35;
      margin-bottom: 12px;
    }

    .section-desc {
      font-size: 15px;
      color: #64748b;
      line-height: 1.7;
    }

    /* 平台支持模型标签流 */
    .model-tags-container {
      background: #fffbeb;
      border: 1px dashed #fcd34d;
      border-radius: var(--radius);
      padding: 24px;
      margin-bottom: 40px;
      box-shadow: inset 0 2px 4px rgba(245, 158, 11, 0.05);
    }

    .model-tags-title {
      font-size: 14px;
      font-weight: 700;
      color: #92400e;
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .model-tag-list {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .model-chip {
      background: #ffffff;
      border: 1px solid #fef08a;
      color: #334155;
      font-size: 12px;
      font-weight: 600;
      padding: 5px 12px;
      border-radius: 6px;
      transition: all 0.2s ease;
    }

    .model-chip:hover {
      background: #f59e0b;
      color: #ffffff;
      border-color: #f59e0b;
      transform: scale(1.04);
    }

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

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

    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
    }

    /* 核心服务卡片 */
    .service-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 26px 22px;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .service-card:hover {
      border-color: #f59e0b;
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
    }

    .service-badge {
      align-self: flex-start;
      font-size: 11px;
      font-weight: 700;
      color: #b45309;
      background: #fffbeb;
      padding: 3px 8px;
      border-radius: 4px;
      margin-bottom: 12px;
      border: 1px solid #fde68a;
    }

    .service-title {
      font-size: 18px;
      font-weight: 700;
      color: #1e293b;
      margin-bottom: 10px;
    }

    .service-text {
      font-size: 13.5px;
      color: #475569;
      line-height: 1.65;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .service-foot {
      font-size: 12px;
      font-weight: 700;
      color: #d97706;
      display: flex;
      align-items: center;
      gap: 4px;
    }

    /* 行业方案图文卡片 */
    .solution-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
    }

    .solution-card:hover {
      border-color: #f59e0b;
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }

    .solution-img-box {
      width: 100%;
      aspect-ratio: 16 / 9;
      background: #f8fafc;
      overflow: hidden;
      border-bottom: 1px solid #f1f5f9;
    }

    .solution-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.3s ease;
    }

    .solution-card:hover .solution-img-box img {
      transform: scale(1.03);
    }

    .solution-body {
      padding: 22px;
    }

    .solution-body h3 {
      font-size: 18px;
      font-weight: 700;
      color: #1e293b;
      margin-bottom: 10px;
    }

    .solution-body p {
      font-size: 13.5px;
      color: #64748b;
      line-height: 1.6;
      margin-bottom: 14px;
    }

    .solution-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }

    .solution-tags span {
      background: #fef3c7;
      color: #92400e;
      font-size: 11.5px;
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 600;
    }

    /* 标准制作流程 */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

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

    .step-num {
      width: 44px;
      height: 44px;
      margin: 0 auto 16px;
      border-radius: 50%;
      background: linear-gradient(135deg, #f59e0b, #d97706);
      color: #ffffff;
      font-size: 18px;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 10px rgba(245, 158, 11, 0.3);
    }

    .step-title {
      font-size: 16px;
      font-weight: 700;
      color: #1e293b;
      margin-bottom: 8px;
    }

    .step-desc {
      font-size: 13px;
      color: #64748b;
      line-height: 1.6;
    }

    /* 对比评测高光卡 */
    .eval-highlight-box {
      background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
      border: 2px solid #f59e0b;
      border-radius: var(--radius);
      padding: 30px;
      margin-bottom: 36px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      box-shadow: var(--shadow-md);
    }

    .eval-main-info {
      flex: 1;
    }

    .eval-score-badge {
      display: inline-flex;
      align-items: baseline;
      gap: 6px;
      margin-bottom: 8px;
    }

    .score-number {
      font-size: 42px;
      font-weight: 900;
      color: #b45309;
      line-height: 1;
    }

    .score-max {
      font-size: 18px;
      font-weight: 700;
      color: #78350f;
    }

    .stars-text {
      color: #f59e0b;
      font-size: 20px;
      margin-left: 8px;
    }

    .eval-highlight-title {
      font-size: 22px;
      font-weight: 800;
      color: #92400e;
      margin-bottom: 6px;
    }

    .eval-highlight-desc {
      font-size: 14px;
      color: #475569;
    }

    .eval-actions {
      text-align: right;
    }

    /* 对比表格 */
    .table-container {
      overflow-x: auto;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      box-shadow: var(--shadow-sm);
    }

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

    .compare-table th {
      background: #fffbeb;
      color: #92400e;
      padding: 16px 20px;
      font-size: 14px;
      font-weight: 700;
      border-bottom: 2px solid #fde68a;
    }

    .compare-table td {
      padding: 16px 20px;
      font-size: 13.5px;
      border-bottom: 1px solid #f1f5f9;
      color: #334155;
    }

    .compare-table tr:hover td {
      background: #fefce8;
    }

    .compare-table .highlight-col {
      background: rgba(254, 243, 199, 0.35);
      font-weight: 700;
      color: #92400e;
    }

    .badge-win {
      background: #dcfce7;
      color: #166534;
      font-size: 11px;
      font-weight: 700;
      padding: 3px 8px;
      border-radius: 4px;
      display: inline-block;
    }

    /* 案例中心 */
    .case-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
    }

    .case-card:hover {
      border-color: #f59e0b;
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .case-img-box {
      width: 100%;
      height: 200px;
      background: #f8fafc;
      overflow: hidden;
    }

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

    .case-body {
      padding: 20px;
    }

    .case-client {
      font-size: 12px;
      font-weight: 700;
      color: #d97706;
      margin-bottom: 6px;
    }

    .case-title {
      font-size: 17px;
      font-weight: 700;
      color: #1e293b;
      margin-bottom: 8px;
    }

    .case-desc {
      font-size: 13px;
      color: #64748b;
      line-height: 1.6;
      margin-bottom: 14px;
    }

    .case-metric-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 12px;
      font-weight: 700;
      color: #15803d;
      background: #dcfce7;
      padding: 4px 10px;
      border-radius: 6px;
    }

    /* 用户评论 */
    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: all 0.25s ease;
    }

    .review-card:hover {
      border-color: #f59e0b;
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }

    .review-stars {
      color: #f59e0b;
      font-size: 14px;
      margin-bottom: 12px;
    }

    .review-content {
      font-size: 13.5px;
      color: #334155;
      line-height: 1.7;
      margin-bottom: 18px;
      flex-grow: 1;
    }

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

    .author-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: linear-gradient(135deg, #fef08a, #f59e0b);
      color: #78350f;
      font-weight: 800;
      font-size: 15px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .author-name {
      font-size: 14px;
      font-weight: 700;
      color: #1e293b;
    }

    .author-role {
      font-size: 12px;
      color: #64748b;
    }

    /* 常见问题 FAQ 折叠 */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 10px;
      margin-bottom: 12px;
      overflow: hidden;
      transition: border-color 0.25s ease;
    }

    .faq-item:hover {
      border-color: #f59e0b;
    }

    .faq-question {
      width: 100%;
      padding: 18px 22px;
      background: none;
      border: none;
      text-align: left;
      font-size: 15.5px;
      font-weight: 700;
      color: #1e293b;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }

    .faq-icon {
      font-size: 18px;
      color: #f59e0b;
      transition: transform 0.25s ease;
      font-weight: 700;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #fffdf5;
      padding: 0 22px;
      color: #475569;
      font-size: 14px;
      line-height: 1.7;
    }

    .faq-item.active .faq-answer {
      padding: 14px 22px 20px;
      max-height: 280px;
      border-top: 1px dashed #fde68a;
    }

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

    /* 需求匹配表单与联系我们 */
    .contact-card-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      box-shadow: var(--shadow-md);
      overflow: hidden;
      display: grid;
      grid-template-columns: 1fr 1fr;
    }

    .contact-form-side {
      padding: 40px;
    }

    .contact-info-side {
      background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
      padding: 40px;
      border-left: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .form-group {
      margin-bottom: 20px;
    }

    .form-group label {
      display: block;
      font-size: 13.5px;
      font-weight: 700;
      color: #334155;
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid #cbd5e1;
      border-radius: 8px;
      font-size: 14px;
      color: #1e293b;
      background: #ffffff;
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
      outline: none;
    }

    .form-control:focus {
      border-color: #f59e0b;
      box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.2);
    }

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

    .btn-submit {
      width: 100%;
      padding: 14px;
      background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
      color: #ffffff;
      font-size: 15px;
      font-weight: 800;
      border: none;
      border-radius: 8px;
      cursor: pointer;
      box-shadow: 0 6px 18px rgba(245, 158, 11, 0.35);
      transition: all 0.2s ease;
    }

    .btn-submit:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 24px rgba(217, 119, 6, 0.45);
    }

    .contact-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      margin-bottom: 20px;
    }

    .contact-item-icon {
      width: 38px;
      height: 38px;
      border-radius: 8px;
      background: #f59e0b;
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      flex-shrink: 0;
    }

    .contact-item-text h4 {
      font-size: 14px;
      font-weight: 700;
      color: #1e293b;
      margin-bottom: 2px;
    }

    .contact-item-text p {
      font-size: 13px;
      color: #64748b;
    }

    .qr-showcase {
      text-align: center;
      margin-top: 20px;
      background: #ffffff;
      padding: 16px;
      border-radius: 10px;
      border: 1px solid #fde68a;
    }

    .qr-showcase img {
      max-width: 140px;
      height: auto;
      border-radius: 6px;
      display: inline-block;
    }

    .qr-label {
      font-size: 12px;
      font-weight: 700;
      color: #92400e;
      margin-top: 8px;
    }

    /* 行业资讯文章链接 */
    .article-links-container {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 28px;
      box-shadow: var(--shadow-sm);
    }

    .article-link-list {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
      gap: 14px;
      margin-top: 18px;
    }

    .article-item-anchor {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 12px 16px;
      background: #fffdf5;
      border: 1px solid #fef08a;
      border-radius: 8px;
      font-size: 13.5px;
      font-weight: 600;
      color: #92400e;
      transition: all 0.2s ease;
    }

    .article-item-anchor:hover {
      background: #fef3c7;
      border-color: #f59e0b;
      transform: translateX(4px);
    }

    /* 页脚设计 */
    footer.site-footer {
      background: #1e293b;
      color: #94a3b8;
      padding: 60px 0 25px;
      font-size: 13.5px;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-brand h3 {
      color: #fef08a;
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 12px;
    }

    .footer-brand p {
      line-height: 1.7;
      font-size: 13px;
      color: #cbd5e1;
      margin-bottom: 16px;
    }

    .footer-col h4 {
      color: #ffffff;
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 16px;
      position: relative;
      padding-bottom: 8px;
    }

    .footer-col h4::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 28px;
      height: 2px;
      background: #f59e0b;
    }

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

    .footer-col ul li a {
      color: #94a3b8;
      transition: color 0.2s ease;
    }

    .footer-col ul li a:hover {
      color: #fef08a;
    }

    .friendly-links-wrap {
      border-top: 1px solid #334155;
      padding-top: 24px;
      margin-bottom: 24px;
      display: flex;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
    }

    .friendly-links-wrap strong {
      color: #e2e8f0;
      font-size: 13px;
    }

    .friendly-links-wrap a {
      color: #94a3b8;
      font-size: 12.5px;
      margin-right: 8px;
    }

    .friendly-links-wrap a:hover {
      color: #fbbf24;
    }

    .footer-bottom {
      border-top: 1px solid #334155;
      padding-top: 20px;
      text-align: center;
      font-size: 12.5px;
      color: #64748b;
    }

    /* 浮动组件：客服与返回顶部 */
    .floating-tools {
      position: fixed;
      bottom: 30px;
      right: 25px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid #fde68a;
      box-shadow: 0 4px 16px rgba(0,0,0,0.12);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #b45309;
      font-size: 18px;
      cursor: pointer;
      transition: all 0.25s ease;
      position: relative;
    }

    .float-btn:hover {
      background: #f59e0b;
      color: #ffffff;
      transform: translateY(-3px);
    }

    .float-qr-popup {
      position: absolute;
      right: 60px;
      bottom: 0;
      background: #ffffff;
      padding: 12px;
      border-radius: 8px;
      border: 1px solid #fde68a;
      box-shadow: var(--shadow-lg);
      display: none;
      width: 140px;
      text-align: center;
    }

    .float-btn:hover .float-qr-popup {
      display: block;
    }

    .float-qr-popup img {
      width: 100%;
      height: auto;
      display: block;
      border-radius: 4px;
    }

    .float-qr-popup span {
      display: block;
      margin-top: 6px;
      font-size: 11px;
      color: #78350f;
      font-weight: 700;
    }

    /* 响应式媒体查询 */
    @media (max-width: 992px) {
      .hero-title {
        font-size: 30px;
      }
      .grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }
      .flow-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-metrics {
        grid-template-columns: repeat(2, 1fr);
      }
      .contact-card-box {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
      .eval-highlight-box {
        flex-direction: column;
        align-items: flex-start;
      }
      .eval-actions {
        text-align: left;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-btn {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.08);
        border-bottom: 1px solid var(--border-color);
      }
      .nav-links.show {
        display: flex;
      }
      .nav-links a {
        width: 100%;
        padding: 10px 14px;
      }
      .nav-cta {
        display: none;
      }
      .hero-title {
        font-size: 26px;
      }
      .grid-3,
      .grid-4,
      .grid-2,
      .hero-metrics,
      .flow-steps {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
      .contact-form-side,
      .contact-info-side {
        padding: 24px;
      }
    }