:root {
      --primary-orange: #ff5500;
      --primary-hover: #e04a00;
      --primary-light: #fff2ea;
      --primary-gradient: linear-gradient(135deg, #ff6a00 0%, #ff3b00 100%);
      --accent-warm: #ff8c00;
      --accent-gold: #ffa800;
      --bg-warm-light: #fffaf7;
      --bg-white: #ffffff;
      --bg-alt: #fbf5f0;
      --text-main: #1f2429;
      --text-muted: #5c6470;
      --text-light: #8c96a4;
      --border-color: #f0e2d8;
      --border-focus: #ff6a00;
      --shadow-sm: 0 4px 12px rgba(255, 85, 0, 0.05);
      --shadow-md: 0 10px 25px rgba(255, 85, 0, 0.08);
      --shadow-lg: 0 20px 40px rgba(255, 85, 0, 0.12);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --container-width: 1200px;
    }

    * {
      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-warm-light);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

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

    ul, ol {
      list-style: none;
    }

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

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

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

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

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

    .brand-meta {
      display: flex;
      flex-direction: column;
    }

    .brand-name {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .brand-badge {
      font-size: 0.7rem;
      background: var(--primary-light);
      color: var(--primary-orange);
      padding: 2px 6px;
      border-radius: 4px;
      font-weight: 700;
      border: 1px solid rgba(255, 85, 0, 0.2);
    }

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

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

    .nav-links li a {
      display: inline-block;
      padding: 8px 14px;
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-main);
      border-radius: var(--radius-sm);
    }

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

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-left: 16px;
    }

    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      background: var(--primary-gradient);
      color: #ffffff !important;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 700;
      border-radius: 30px;
      border: none;
      cursor: pointer;
      box-shadow: 0 4px 14px rgba(255, 85, 0, 0.3);
      transition: transform 0.2s, box-shadow 0.2s;
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 85, 0, 0.4);
    }

    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 20px;
      font-size: 0.95rem;
      font-weight: 700;
      border-radius: 30px;
      border: 2px solid var(--primary-orange);
      color: var(--primary-orange) !important;
      background: #ffffff;
      cursor: pointer;
      transition: all 0.2s ease;
    }

    .btn-outline:hover {
      background: var(--primary-light);
      transform: translateY(-2px);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
      color: var(--text-main);
    }

    /* 模块通用样式 */
    .section-padding {
      padding: 80px 0;
      position: relative;
    }

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

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 50px auto;
    }

    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 0.85rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--primary-orange);
      background: var(--primary-light);
      padding: 4px 14px;
      border-radius: 20px;
      margin-bottom: 12px;
      border: 1px solid rgba(255, 85, 0, 0.15);
    }

    .section-title {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 16px;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 首屏 HERO（纯CSS构筑科技炽艳感，无图片） */
    .hero-section {
      background: radial-gradient(circle at 50% 10%, #fff0e6 0%, #fffaf7 60%);
      padding: 85px 0 75px 0;
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid var(--border-color);
    }

    .hero-glow-1 {
      position: absolute;
      top: -120px;
      left: 50%;
      transform: translateX(-50%);
      width: 700px;
      height: 400px;
      background: radial-gradient(circle, rgba(255, 106, 0, 0.18) 0%, rgba(255, 255, 255, 0) 70%);
      pointer-events: none;
      z-index: 1;
    }

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

    .hero-chip {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      border: 1px solid rgba(255, 85, 0, 0.25);
      box-shadow: 0 4px 15px rgba(255, 85, 0, 0.08);
      border-radius: 30px;
      padding: 6px 18px;
      margin-bottom: 24px;
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--primary-orange);
    }

    .hero-chip-dot {
      width: 8px;
      height: 8px;
      background: #ff5500;
      border-radius: 50%;
      box-shadow: 0 0 10px #ff5500;
      animation: pulse 2s infinite;
    }

    @keyframes pulse {
      0%, 100% { transform: scale(1); opacity: 1; }
      50% { transform: scale(1.3); opacity: 0.7; }
    }

    .hero-title {
      font-size: 2.85rem;
      font-weight: 900;
      line-height: 1.25;
      color: #14171a;
      letter-spacing: -1px;
      margin-bottom: 20px;
    }

    .hero-title .highlight {
      color: var(--primary-orange);
      position: relative;
      display: inline-block;
    }

    .hero-subtitle {
      font-size: 1.2rem;
      color: var(--text-muted);
      line-height: 1.7;
      max-width: 780px;
      margin: 0 auto 36px auto;
    }

    .hero-btn-group {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 45px;
    }

    .hero-btn-main {
      font-size: 1.1rem;
      padding: 14px 34px;
      box-shadow: 0 8px 24px rgba(255, 85, 0, 0.35);
    }

    .hero-features-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      text-align: left;
    }

    .hero-feature-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      padding: 8px;
    }

    .hero-feature-icon {
      width: 42px;
      height: 42px;
      min-width: 42px;
      background: var(--primary-light);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary-orange);
      font-size: 1.2rem;
      font-weight: 900;
      border: 1px solid rgba(255, 85, 0, 0.15);
    }

    .hero-feature-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .hero-feature-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.4;
    }

    /* 数据指标卡片 */
    .metrics-section {
      background: #ffffff;
      padding: 40px 0;
      border-bottom: 1px solid var(--border-color);
    }

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

    .metric-card {
      text-align: center;
      padding: 20px 10px;
      background: var(--bg-warm-light);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      transition: transform 0.25s ease;
    }

    .metric-card:hover {
      transform: translateY(-3px);
      border-color: rgba(255, 85, 0, 0.3);
    }

    .metric-num {
      font-size: 2.3rem;
      font-weight: 900;
      color: var(--primary-orange);
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .metric-label {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .metric-sub {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 关于我们与平台介绍 */
    .about-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 40px;
      align-items: center;
    }

    .about-text h3 {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 18px;
    }

    .about-text p {
      font-size: 1.02rem;
      color: var(--text-muted);
      margin-bottom: 20px;
      line-height: 1.7;
    }

    .about-bullets {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      margin-top: 24px;
    }

    .about-bullet-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 600;
      font-size: 0.95rem;
      color: var(--text-main);
      background: #ffffff;
      padding: 10px 14px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
    }

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

    .about-visual-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: var(--shadow-md);
    }

    .visual-pill-list {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 20px;
    }

    .visual-pill {
      background: var(--primary-light);
      color: var(--primary-orange);
      font-size: 0.85rem;
      font-weight: 700;
      padding: 6px 12px;
      border-radius: 20px;
      border: 1px solid rgba(255, 85, 0, 0.15);
    }

    /* 服务能力卡片 & 一站式制作 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .service-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(255, 85, 0, 0.35);
    }

    .service-card-header {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 16px;
    }

    .service-icon {
      width: 48px;
      height: 48px;
      background: var(--primary-light);
      color: var(--primary-orange);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.3rem;
      border: 1px solid rgba(255, 85, 0, 0.2);
    }

    .service-card-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
    }

    .service-card-desc {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 18px;
    }

    .service-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: auto;
    }

    .service-tag-item {
      font-size: 0.78rem;
      background: var(--bg-warm-light);
      color: var(--text-muted);
      padding: 3px 8px;
      border-radius: 4px;
      border: 1px solid var(--border-color);
    }

    /* 聚合模型展示墙 */
    .models-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 30px;
    }

    .model-chip {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 8px 16px;
      border-radius: 20px;
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-main);
      box-shadow: var(--shadow-sm);
      transition: all 0.2s;
    }

    .model-chip:hover {
      background: var(--primary-light);
      color: var(--primary-orange);
      border-color: var(--primary-orange);
      transform: scale(1.05);
    }

    /* 行业方案与场景 */
    .solution-tabs-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .solution-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      transition: transform 0.25s ease;
    }

    .solution-card:hover {
      transform: translateY(-4px);
      border-color: var(--primary-orange);
    }

    .solution-title {
      font-size: 1.15rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .solution-badge {
      font-size: 0.75rem;
      background: var(--primary-orange);
      color: #fff;
      padding: 2px 6px;
      border-radius: 4px;
    }

    .solution-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 案例中心与图片素材区（非首屏） */
    .gallery-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
      margin-bottom: 30px;
    }

    .gallery-item {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: transform 0.3s ease;
    }

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

    .gallery-img-wrap {
      width: 100%;
      background: #f4ede6;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
    }

    .gallery-img-wrap img {
      width: 100%;
      height: auto;
      display: block;
      transition: transform 0.4s ease;
    }

    .gallery-item:hover .gallery-img-wrap img {
      transform: scale(1.02);
    }

    .gallery-body {
      padding: 20px;
    }

    .gallery-title {
      font-size: 1.15rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .gallery-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    .banner-strip-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 24px;
    }

    .banner-strip-item {
      border-radius: var(--radius-sm);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      background: #fff;
    }

    .banner-strip-item img {
      width: 100%;
      height: auto;
      display: block;
    }

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

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

    .step-number {
      width: 44px;
      height: 44px;
      margin: 0 auto 16px auto;
      background: var(--primary-gradient);
      color: #ffffff;
      border-radius: 50%;
      font-size: 1.2rem;
      font-weight: 900;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 12px rgba(255, 85, 0, 0.3);
    }

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

    .step-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 对比评测要求板块 */
    .review-highlight-box {
      background: #ffffff;
      border: 2px solid var(--primary-orange);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-lg);
      margin-bottom: 40px;
    }

    .review-header-flex {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
      border-bottom: 1px dashed var(--border-color);
      padding-bottom: 24px;
      margin-bottom: 24px;
    }

    .score-badge-area {
      display: flex;
      align-items: baseline;
      gap: 12px;
    }

    .score-main {
      font-size: 3.5rem;
      font-weight: 900;
      color: var(--primary-orange);
      line-height: 1;
    }

    .score-total {
      font-size: 1.2rem;
      color: var(--text-muted);
      font-weight: 700;
    }

    .stars-display {
      color: #ff9800;
      font-size: 1.4rem;
      letter-spacing: 3px;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
    }

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

    .compare-table th, .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.95rem;
    }

    .compare-table th {
      background: var(--bg-warm-light);
      font-weight: 800;
      color: var(--text-main);
    }

    .compare-table td.highlight-col {
      background: #fffcf9;
      font-weight: 700;
      color: var(--primary-orange);
    }

    /* Token比价与透明计费 */
    .price-compare-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .pricing-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px 24px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s;
      position: relative;
    }

    .pricing-card.featured {
      border: 2px solid var(--primary-orange);
      transform: scale(1.02);
      box-shadow: var(--shadow-lg);
    }

    .pricing-badge-top {
      position: absolute;
      top: -14px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary-gradient);
      color: #fff;
      font-size: 0.8rem;
      font-weight: 800;
      padding: 4px 16px;
      border-radius: 20px;
      box-shadow: 0 4px 10px rgba(255, 85, 0, 0.3);
    }

    .pricing-tier-name {
      font-size: 1.3rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .pricing-rate {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary-orange);
      margin-bottom: 6px;
    }

    .pricing-rate span {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    .pricing-features-list {
      text-align: left;
      margin: 24px 0;
      padding-top: 18px;
      border-top: 1px solid var(--border-color);
    }

    .pricing-features-list li {
      font-size: 0.9rem;
      color: var(--text-muted);
      padding: 6px 0;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    /* 6条真实用户评论 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .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-rating-stars {
      color: #ff9800;
      font-size: 0.9rem;
      margin-bottom: 12px;
    }

    .review-content-text {
      font-size: 0.92rem;
      color: var(--text-main);
      line-height: 1.6;
      margin-bottom: 20px;
      font-style: normal;
    }

    .review-author-info {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f2e7de;
      padding-top: 14px;
    }

    .author-avatar-initial {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary-orange);
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
      border: 1px solid rgba(255, 85, 0, 0.2);
    }

    .author-name {
      font-size: 0.95rem;
      font-weight: 800;
      color: var(--text-main);
    }

    .author-role {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 加盟代理板块 */
    .agent-banner {
      background: linear-gradient(135deg, #fff7f2 0%, #ffede0 100%);
      border: 2px solid rgba(255, 85, 0, 0.25);
      border-radius: var(--radius-lg);
      padding: 45px 36px;
      box-shadow: var(--shadow-md);
    }

    .agent-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 30px;
      align-items: center;
    }

    .agent-perks {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-top: 20px;
    }

    .perk-item {
      background: #ffffff;
      padding: 14px 18px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
      font-size: 0.92rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    /* FAQ 折叠手风琴 */
    .faq-container {
      max-width: 880px;
      margin: 0 auto;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
      overflow: hidden;
      transition: border-color 0.2s;
    }

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

    .faq-question {
      padding: 18px 22px;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      user-select: none;
      background: #ffffff;
    }

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

    .faq-toggle-icon {
      font-size: 1.3rem;
      color: var(--primary-orange);
      transition: transform 0.3s ease;
      font-weight: 400;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      padding: 0 22px;
      background: #fffcf9;
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.65;
    }

    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 0 22px 18px 22px;
    }

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

    .article-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: transform 0.25s ease;
    }

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

    .article-title {
      font-size: 1.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 10px;
      line-height: 1.4;
    }

    .article-title a:hover {
      color: var(--primary-orange);
    }

    .article-meta {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.85rem;
      color: var(--text-light);
      margin-top: 16px;
      padding-top: 12px;
      border-top: 1px solid #f2e7de;
    }

    /* 需求匹配与表单板块 */
    .form-section-wrapper {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }

    .form-grid-layout {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 40px;
    }

    .contact-form {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

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

    .form-group label {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      font-size: 0.95rem;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      background: var(--bg-warm-light);
      color: var(--text-main);
      outline: none;
      transition: border-color 0.2s, box-shadow 0.2s;
      font-family: inherit;
    }

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

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

    .contact-info-panel {
      background: var(--bg-warm-light);
      padding: 28px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }

    .contact-qr-wrap {
      text-align: center;
      margin-bottom: 24px;
      padding: 16px;
      background: #ffffff;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
    }

    .contact-qr-wrap img {
      max-width: 150px;
      height: auto;
      margin: 0 auto 10px auto;
      display: block;
      border-radius: 6px;
    }

    .contact-detail-list li {
      margin-bottom: 12px;
      font-size: 0.92rem;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .contact-detail-list strong {
      color: var(--text-main);
    }

    /* 友情链接与AI百科 */
    .links-section {
      background: #ffffff;
      padding: 30px 0;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

    .friend-links-wrap {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
    }

    .friend-links-title {
      font-size: 0.95rem;
      font-weight: 800;
      color: var(--text-main);
    }

    .friend-links-wrap a {
      font-size: 0.9rem;
      color: var(--text-muted);
      background: var(--bg-warm-light);
      padding: 4px 12px;
      border-radius: 4px;
      border: 1px solid var(--border-color);
    }

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

    /* 页脚 */
    .site-footer {
      background: #191c20;
      color: #b0b8c4;
      padding: 50px 0 30px 0;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 30px;
      margin-bottom: 40px;
    }

    .footer-brand-title {
      color: #ffffff;
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 14px;
    }

    .footer-desc {
      font-size: 0.88rem;
      line-height: 1.6;
      color: #8f9aa8;
    }

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

    .footer-links-list li {
      margin-bottom: 8px;
    }

    .footer-links-list a {
      color: #8f9aa8;
      font-size: 0.88rem;
    }

    .footer-links-list a:hover {
      color: #ff7700;
    }

    .footer-bottom {
      border-top: 1px solid #282f38;
      padding-top: 24px;
      text-align: center;
      font-size: 0.85rem;
      color: #727c8a;
    }

    /* 浮动组件与返回顶部 */
    .floating-tools {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 50%;
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      color: var(--primary-orange);
      font-weight: 800;
      font-size: 1rem;
      transition: all 0.25s;
    }

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

    /* 响应式媒体查询 */
    @media (max-width: 1024px) {
      .hero-features-bar,
      .solution-tabs-grid,
      .process-steps,
      .banner-strip-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .services-grid,
      .price-compare-grid,
      .reviews-grid,
      .articles-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .about-grid,
      .form-grid-layout,
      .agent-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .header-inner {
        height: 64px;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 16px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.show {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        display: block;
        padding: 12px 16px;
      }
      .mobile-menu-btn {
        display: block;
      }
      .nav-actions {
        display: none;
      }
      .hero-title {
        font-size: 2rem;
      }
      .hero-features-bar,
      .metrics-grid,
      .services-grid,
      .solution-tabs-grid,
      .gallery-grid,
      .banner-strip-grid,
      .process-steps,
      .price-compare-grid,
      .reviews-grid,
      .articles-grid,
      .footer-grid,
      .agent-perks,
      .about-bullets {
        grid-template-columns: 1fr;
      }
      .section-padding {
        padding: 55px 0;
      }
      .review-header-flex {
        flex-direction: column;
        align-items: flex-start;
      }
    }