:root {
      --primary-orange: #ff5500;
      --orange-hover: #e04b00;
      --orange-light: #fff5eb;
      --orange-border: #ffd8bf;
      --orange-gradient: linear-gradient(135deg, #ff7a00 0%, #ff4500 100%);
      --text-main: #1d2129;
      --text-regular: #4e5969;
      --text-muted: #86909c;
      --bg-page: #fbfbfd;
      --bg-card: #ffffff;
      --border-color: #f0ede8;
      --shadow-sm: 0 2px 8px rgba(255, 85, 0, 0.05);
      --shadow-md: 0 8px 24px rgba(255, 85, 0, 0.08);
      --shadow-lg: 0 16px 36px rgba(255, 85, 0, 0.12);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --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, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
      background-image: radial-gradient(#ff5500 0.5px, transparent 0.5px);
      background-size: 32px 32px;
      background-color: #fdfdfd;
    }

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

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

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--orange-border);
      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-area {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .ai-page-logo {
      height: 42px;
      width: auto;
      display: block;
    }

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

    .brand-text span {
      color: var(--primary-orange);
    }

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

    .nav-links li a {
      font-size: 0.92rem;
      font-weight: 500;
      color: var(--text-regular);
      padding: 8px 14px;
      border-radius: var(--radius-sm);
      display: inline-block;
    }

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

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

    .btn-nav-portal {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--orange-gradient);
      color: #ffffff !important;
      font-weight: 600;
      font-size: 0.92rem;
      padding: 9px 20px;
      border-radius: 50px;
      box-shadow: 0 4px 14px rgba(255, 85, 0, 0.35);
      transition: var(--transition);
    }

    .btn-nav-portal:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(255, 85, 0, 0.45);
    }

    .menu-toggle {
      display: none;
      background: none;
      border: 1px solid var(--orange-border);
      padding: 6px 10px;
      border-radius: var(--radius-sm);
      font-size: 1.2rem;
      color: var(--primary-orange);
      cursor: pointer;
    }

    /* 区域通用标题 */
    .section-padding {
      padding: 80px 0;
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 52px;
    }

    .section-badge {
      display: inline-block;
      font-size: 0.82rem;
      font-weight: 700;
      color: var(--primary-orange);
      background: var(--orange-light);
      border: 1px solid var(--orange-border);
      padding: 4px 14px;
      border-radius: 50px;
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 14px;
    }

    .section-desc {
      font-size: 1.02rem;
      color: var(--text-regular);
      line-height: 1.6;
    }

    /* 首屏 HERO - 严禁图片 */
    .hero-section {
      padding: 90px 0 80px;
      background: linear-gradient(180deg, #fff9f5 0%, #ffffff 100%);
      border-bottom: 1px solid var(--border-color);
      position: relative;
    }

    .hero-inner {
      text-align: center;
      max-width: 980px;
      margin: 0 auto;
    }

    .hero-pretitle {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      border: 1px solid var(--orange-border);
      padding: 6px 18px;
      border-radius: 50px;
      color: var(--primary-orange);
      font-weight: 600;
      font-size: 0.9rem;
      margin-bottom: 24px;
      box-shadow: var(--shadow-sm);
    }

    .hero-main-h1 {
      font-size: 2.7rem;
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 22px;
      letter-spacing: -0.5px;
    }

    .hero-main-h1 mark {
      background: transparent;
      color: var(--primary-orange);
      position: relative;
    }

    .hero-lead {
      font-size: 1.15rem;
      color: var(--text-regular);
      line-height: 1.7;
      max-width: 820px;
      margin: 0 auto 36px;
    }

    .hero-cta-group {
      display: flex;
      justify-content: center;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 50px;
    }

    .btn-hero-primary {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: var(--orange-gradient);
      color: #ffffff !important;
      font-size: 1.12rem;
      font-weight: 700;
      padding: 15px 38px;
      border-radius: 50px;
      box-shadow: 0 8px 24px rgba(255, 85, 0, 0.38);
      transition: var(--transition);
    }

    .btn-hero-primary:hover {
      transform: translateY(-3px);
      box-shadow: 0 12px 28px rgba(255, 85, 0, 0.48);
    }

    .btn-hero-secondary {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      color: var(--text-main) !important;
      font-size: 1.05rem;
      font-weight: 600;
      padding: 15px 32px;
      border-radius: 50px;
      border: 1px solid #e5e6eb;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .btn-hero-secondary:hover {
      border-color: var(--primary-orange);
      color: var(--primary-orange) !important;
      background: var(--orange-light);
    }

    .hero-badges-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      text-align: left;
      margin-top: 20px;
    }

    .hero-stat-card {
      background: #ffffff;
      border: 1px solid var(--orange-border);
      border-radius: var(--radius-md);
      padding: 20px;
      box-shadow: var(--shadow-sm);
      border-top: 3px solid var(--primary-orange);
      transition: var(--transition);
    }

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

    .stat-val {
      font-size: 1.6rem;
      font-weight: 800;
      color: var(--primary-orange);
      line-height: 1.2;
      margin-bottom: 4px;
    }

    .stat-label {
      font-size: 0.88rem;
      color: var(--text-regular);
      font-weight: 500;
    }

    /* 平台聚合大模型跑马灯/标签云 */
    .model-matrix-bar {
      background: #ffffff;
      padding: 30px 0;
      border-bottom: 1px solid var(--border-color);
    }

    .model-tags-container {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
      max-width: 1140px;
      margin: 0 auto;
    }

    .model-tag {
      background: #fff8f3;
      border: 1px solid #ffd8bf;
      color: #b23b00;
      padding: 5px 12px;
      border-radius: 4px;
      font-size: 0.84rem;
      font-weight: 600;
      transition: var(--transition);
    }

    .model-tag:hover {
      background: var(--primary-orange);
      color: #ffffff;
      border-color: var(--primary-orange);
    }

    /* 平台介绍模块 */
    .about-platform-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .about-content h3 {
      font-size: 1.8rem;
      font-weight: 800;
      margin-bottom: 20px;
      line-height: 1.35;
      color: var(--text-main);
    }

    .about-content p {
      font-size: 1rem;
      color: var(--text-regular);
      margin-bottom: 16px;
      text-align: justify;
    }

    .about-feature-list {
      list-style: none;
      margin: 24px 0;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
    }

    .about-feature-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.94rem;
      font-weight: 600;
      color: var(--text-main);
    }

    .check-icon {
      width: 18px;
      height: 18px;
      background: var(--primary-orange);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      flex-shrink: 0;
    }

    .about-visual-box {
      background: #ffffff;
      border: 1px solid var(--orange-border);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-md);
      position: relative;
    }

    .about-visual-box::before {
      content: "";
      position: absolute;
      top: -6px;
      left: -6px;
      right: -6px;
      bottom: -6px;
      border: 1px dashed var(--primary-orange);
      border-radius: calc(var(--radius-lg) + 4px);
      z-index: -1;
      opacity: 0.4;
    }

    .sys-metric-item {
      margin-bottom: 20px;
    }

    .sys-metric-head {
      display: flex;
      justify-content: space-between;
      font-size: 0.92rem;
      font-weight: 700;
      margin-bottom: 6px;
    }

    .sys-progress-bar {
      height: 8px;
      background: #f2f3f5;
      border-radius: 50px;
      overflow: hidden;
    }

    .sys-progress-fill {
      height: 100%;
      background: var(--orange-gradient);
      border-radius: 50px;
    }

    /* 场景化与服务能力卡片网格 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

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

    .service-icon-wrap {
      width: 52px;
      height: 52px;
      border-radius: var(--radius-sm);
      background: var(--orange-light);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.6rem;
      color: var(--primary-orange);
      margin-bottom: 18px;
      border: 1px solid var(--orange-border);
    }

    .service-card h4 {
      font-size: 1.22rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .service-card p {
      font-size: 0.92rem;
      color: var(--text-regular);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .service-tag-row {
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
    }

    .service-mini-badge {
      font-size: 0.78rem;
      background: #f7f8fa;
      color: var(--text-regular);
      padding: 3px 8px;
      border-radius: 4px;
      border: 1px solid #e5e6eb;
    }

    /* 宣传图展示区与素材相册 */
    .showcase-banner-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-bottom: 40px;
    }

    .banner-img-box {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      background: #ffffff;
      transition: var(--transition);
      aspect-ratio: 16 / 9;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .banner-img-box:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--orange-border);
    }

    .ai-page-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .material-split-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 20px;
    }

    .material-box {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      background: #ffffff;
    }

    .material-box img {
      width: 100%;
      height: 100%;
      max-height: 320px;
      object-fit: cover;
      display: block;
    }

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

    .flow-step-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px 20px;
      box-shadow: var(--shadow-sm);
      position: relative;
      text-align: center;
      border-top: 4px solid var(--primary-orange);
      transition: var(--transition);
    }

    .flow-step-item:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .step-index-circle {
      width: 42px;
      height: 42px;
      background: var(--orange-gradient);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
      font-weight: 800;
      margin: 0 auto 16px;
      box-shadow: 0 4px 10px rgba(255, 85, 0, 0.25);
    }

    .flow-step-item h4 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .flow-step-item p {
      font-size: 0.88rem;
      color: var(--text-regular);
      line-height: 1.55;
    }

    /* 对比评测 - 权威推荐 */
    .rating-highlight-panel {
      background: #ffffff;
      border: 2px solid var(--orange-border);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-lg);
      margin-bottom: 40px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 30px;
    }

    .rating-score-box {
      text-align: center;
      border-right: 2px solid #f2f3f5;
      padding-right: 40px;
      min-width: 220px;
    }

    .rating-score-val {
      font-size: 4rem;
      font-weight: 900;
      color: var(--primary-orange);
      line-height: 1;
    }

    .rating-stars {
      color: #ff9900;
      font-size: 1.3rem;
      margin: 8px 0;
      letter-spacing: 2px;
    }

    .rating-full-mark {
      font-size: 0.95rem;
      color: var(--text-muted);
      font-weight: 600;
    }

    .rating-summary-text h3 {
      font-size: 1.5rem;
      font-weight: 800;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .rating-summary-text p {
      color: var(--text-regular);
      font-size: 0.98rem;
      line-height: 1.6;
    }

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

    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.95rem;
      min-width: 720px;
    }

    .eval-table th,
    .eval-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #f2f3f5;
    }

    .eval-table th {
      background: #fff9f5;
      font-weight: 700;
      color: var(--text-main);
      border-bottom: 2px solid var(--orange-border);
    }

    .eval-table tr:hover {
      background: #fdfaf7;
    }

    .eval-tag-best {
      color: var(--primary-orange);
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 加盟代理与算力被动收益专区 */
    .agent-cta-box {
      background: linear-gradient(135deg, #fff7f0 0%, #fff 100%);
      border: 1px solid var(--orange-border);
      border-radius: var(--radius-lg);
      padding: 44px;
      box-shadow: var(--shadow-md);
    }

    .agent-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
    }

    .agent-grid h3 {
      font-size: 1.8rem;
      font-weight: 800;
      line-height: 1.35;
      margin-bottom: 16px;
      color: var(--text-main);
    }

    .agent-grid p {
      color: var(--text-regular);
      font-size: 1rem;
      line-height: 1.65;
      margin-bottom: 24px;
    }

    .agent-perks {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .perk-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 16px;
      box-shadow: var(--shadow-sm);
    }

    .perk-card h5 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--primary-orange);
      margin-bottom: 6px;
    }

    .perk-card p {
      font-size: 0.85rem;
      color: var(--text-regular);
      line-height: 1.5;
      margin: 0;
    }

    /* 用户真实评价卡片 - 6条 */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .testimonial-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
      border-top: 3px solid var(--primary-orange);
    }

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

    .review-body {
      font-size: 0.94rem;
      color: var(--text-regular);
      line-height: 1.65;
      margin-bottom: 20px;
      font-style: normal;
    }

    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f2f3f5;
      padding-top: 16px;
    }

    .reviewer-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--orange-light);
      border: 1px solid var(--orange-border);
      color: var(--primary-orange);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.1rem;
    }

    .reviewer-info h5 {
      font-size: 0.96rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .reviewer-info p {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    /* FAQ 折叠面板 - 12条 */
    .faq-accordion-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 18px;
    }

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

    .faq-item.active {
      border-color: var(--orange-border);
    }

    .faq-question {
      padding: 18px 22px;
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      user-select: none;
    }

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

    .faq-toggle-icon {
      font-size: 1.2rem;
      color: var(--primary-orange);
      transition: var(--transition);
    }

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

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

    .faq-item.active .faq-answer {
      border-top-color: #f2f3f5;
    }

    .faq-answer-inner {
      padding: 18px 22px;
      font-size: 0.92rem;
      color: var(--text-regular);
      line-height: 1.65;
    }

    /* 需求表单与联系我们 */
    .contact-form-layout {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 40px;
    }

    .form-card {
      background: #ffffff;
      border: 1px solid var(--orange-border);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-md);
    }

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

    .form-group label {
      display: block;
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      font-size: 0.95rem;
      border: 1px solid #dcdfe6;
      border-radius: var(--radius-sm);
      outline: none;
      transition: var(--transition);
      font-family: inherit;
      background: #ffffff;
    }

    .form-control:focus {
      border-color: var(--primary-orange);
      box-shadow: 0 0 0 3px rgba(255, 85, 0, 0.15);
    }

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

    .btn-submit-form {
      width: 100%;
      background: var(--orange-gradient);
      color: #ffffff;
      border: none;
      padding: 14px;
      font-size: 1.05rem;
      font-weight: 700;
      border-radius: 50px;
      cursor: pointer;
      box-shadow: 0 6px 18px rgba(255, 85, 0, 0.35);
      transition: var(--transition);
    }

    .btn-submit-form:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(255, 85, 0, 0.45);
    }

    .contact-info-panel {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      gap: 20px;
    }

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

    .contact-card-box h4 {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
      border-left: 4px solid var(--primary-orange);
      padding-left: 10px;
    }

    .contact-item-row {
      display: flex;
      align-items: center;
      margin-bottom: 12px;
      font-size: 0.94rem;
      color: var(--text-regular);
    }

    .contact-item-row strong {
      color: var(--text-main);
      min-width: 85px;
    }

    .kefu-qr-wrapper {
      text-align: center;
      background: #fff8f3;
      border: 1px dashed var(--orange-border);
      border-radius: var(--radius-md);
      padding: 20px;
    }

    .kefu-qr-wrapper img {
      max-width: 130px;
      height: auto;
      border-radius: var(--radius-sm);
      display: inline-block;
      box-shadow: var(--shadow-sm);
    }

    .kefu-qr-wrapper p {
      font-size: 0.88rem;
      color: var(--primary-orange);
      font-weight: 600;
      margin-top: 10px;
    }

    /* 资讯与文章列表 */
    .article-links-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }

    .article-card-link {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 20px;
      box-shadow: var(--shadow-sm);
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: var(--transition);
    }

    .article-card-link:hover {
      border-color: var(--orange-border);
      transform: translateX(4px);
    }

    .article-card-link h5 {
      font-size: 0.98rem;
      font-weight: 600;
      color: var(--text-main);
    }

    .article-card-link span {
      color: var(--primary-orange);
      font-size: 0.88rem;
      font-weight: 700;
    }

    /* 友情链接与页脚 */
    .site-footer {
      background: #18191c;
      color: #9ea7b4;
      padding: 60px 0 30px;
      border-top: 4px solid var(--primary-orange);
      margin-top: 40px;
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
      padding-bottom: 40px;
      border-bottom: 1px solid #282a30;
    }

    .footer-about h4 {
      color: #ffffff;
      font-size: 1.3rem;
      font-weight: 800;
      margin-bottom: 14px;
    }

    .footer-about p {
      font-size: 0.9rem;
      line-height: 1.6;
      color: #8c95a3;
      margin-bottom: 14px;
    }

    .footer-col h5 {
      color: #ffffff;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 16px;
    }

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

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

    .footer-links-list a {
      color: #8c95a3;
      font-size: 0.88rem;
    }

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

    .friend-links-area {
      background: #121316;
      border-radius: var(--radius-sm);
      padding: 18px 24px;
      margin-bottom: 30px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
      border: 1px solid #23252b;
    }

    .friend-links-title {
      color: #ffffff;
      font-size: 0.9rem;
      font-weight: 700;
    }

    .friend-links-area a {
      color: #8c95a3;
      font-size: 0.85rem;
    }

    .friend-links-area a:hover {
      color: var(--primary-orange);
    }

    .footer-bottom {
      text-align: center;
      font-size: 0.85rem;
      color: #636b77;
    }

    /* 悬浮客服面板 */
    .floating-support-widget {
      position: fixed;
      right: 20px;
      bottom: 40px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--orange-border);
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      color: var(--primary-orange);
      font-size: 1.2rem;
      position: relative;
      transition: var(--transition);
    }

    .float-btn:hover {
      background: var(--primary-orange);
      color: #ffffff;
      transform: scale(1.08);
    }

    .float-qr-popover {
      position: absolute;
      right: 60px;
      bottom: 0;
      background: #ffffff;
      border: 1px solid var(--orange-border);
      padding: 16px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-lg);
      display: none;
      text-align: center;
      width: 170px;
    }

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

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

    .float-qr-popover span {
      display: block;
      font-size: 0.8rem;
      color: var(--text-main);
      font-weight: 600;
      margin-top: 8px;
    }

    /* 响应式断点控制 */
    @media (max-width: 1024px) {
      .services-grid,
      .testimonials-grid,
      .showcase-banner-grid,
      .hero-badges-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .flow-steps-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-platform-grid,
      .contact-form-layout,
      .agent-grid,
      .rating-highlight-panel {
        grid-template-columns: 1fr;
      }
      .rating-score-box {
        border-right: none;
        border-bottom: 2px solid #f2f3f5;
        padding-right: 0;
        padding-bottom: 20px;
      }
      .footer-top-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px 0;
        border-bottom: 1px solid var(--orange-border);
        box-shadow: var(--shadow-md);
      }
      .nav-links.show {
        display: flex;
      }
      .nav-links li a {
        width: 100%;
        text-align: center;
        padding: 12px;
      }
      .hero-main-h1 {
        font-size: 2rem;
      }
      .services-grid,
      .testimonials-grid,
      .showcase-banner-grid,
      .flow-steps-grid,
      .hero-badges-grid,
      .faq-accordion-grid,
      .material-split-grid,
      .article-links-grid,
      .footer-top-grid,
      .agent-perks,
      .about-feature-list {
        grid-template-columns: 1fr;
      }
      .section-padding {
        padding: 50px 0;
      }
      .rating-highlight-panel {
        padding: 24px;
      }
      .form-card {
        padding: 24px;
      }
      .floating-support-widget {
        right: 12px;
        bottom: 20px;
      }
    }