:root {
      --primary-color: #00b050;
      --primary-hover: #009241;
      --primary-light: #e8f8ef;
      --primary-gradient: linear-gradient(135deg, #00b050 0%, #10d876 100%);
      --accent-lime: #a3e635;
      --text-main: #1f2937;
      --text-muted: #4b5563;
      --text-light: #6b7280;
      --bg-page: #f8faf9;
      --bg-card: #ffffff;
      --border-color: #e5e7eb;
      --border-focus: #10d876;
      --shadow-sm: 0 2px 8px rgba(0, 176, 80, 0.06);
      --shadow-md: 0 8px 24px rgba(0, 176, 80, 0.1);
      --shadow-lg: 0 16px 36px rgba(0, 176, 80, 0.14);
      --radius-sm: 8px;
      --radius-md: 14px;
      --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, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
      background-image: radial-gradient(circle at 10% 10%, rgba(16, 216, 118, 0.04) 0%, transparent 40%),
                        radial-gradient(circle at 90% 90%, rgba(0, 176, 80, 0.04) 0%, transparent 40%);
    }

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

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background-color: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(0, 176, 80, 0.15);
      box-shadow: var(--shadow-sm);
    }

    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 74px;
      gap: 16px;
    }

    .brand-box {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }

    .brand-box img {
      max-height: 42px;
      width: auto;
      display: block;
    }

    .brand-text {
      font-size: 1.25rem;
      font-weight: 800;
      color: #0b2e1b;
      letter-spacing: -0.5px;
    }

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

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

    .nav-links a {
      text-decoration: none;
      color: var(--text-main);
      font-weight: 600;
      font-size: 0.92rem;
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      transition: var(--transition);
      white-space: nowrap;
    }

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

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }

    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      background: var(--primary-gradient);
      color: #ffffff !important;
      font-weight: 700;
      font-size: 0.95rem;
      text-decoration: none;
      border-radius: var(--radius-sm);
      box-shadow: 0 4px 14px rgba(0, 176, 80, 0.3);
      transition: var(--transition);
      border: none;
      cursor: pointer;
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(0, 176, 80, 0.4);
    }

    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 20px;
      background-color: #ffffff;
      color: var(--primary-color);
      border: 1.5px solid var(--primary-color);
      font-weight: 600;
      font-size: 0.95rem;
      text-decoration: none;
      border-radius: var(--radius-sm);
      transition: var(--transition);
    }

    .btn-outline:hover {
      background-color: var(--primary-light);
      color: var(--primary-hover);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      cursor: pointer;
      color: var(--text-main);
    }

    /* 首屏 Hero */
    .hero-section {
      padding: 64px 0 54px;
      background: linear-gradient(180deg, #f0fbf5 0%, #ffffff 100%);
      border-bottom: 1px solid rgba(0, 176, 80, 0.08);
      position: relative;
    }

    .hero-inner {
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      max-width: 960px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background-color: var(--primary-light);
      color: var(--primary-hover);
      border: 1px solid rgba(0, 176, 80, 0.3);
      border-radius: 30px;
      font-size: 0.88rem;
      font-weight: 700;
      margin-bottom: 24px;
    }

    .hero-title {
      font-size: 2.5rem;
      font-weight: 900;
      color: #0e331c;
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-title span {
      color: var(--primary-color);
      text-decoration: underline;
      text-decoration-color: rgba(0, 176, 80, 0.3);
      text-underline-offset: 8px;
    }

    .hero-subtitle {
      font-size: 1.15rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 32px;
      max-width: 820px;
    }

    .hero-buttons {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      margin-bottom: 40px;
      flex-wrap: wrap;
    }

    .btn-hero-main {
      padding: 14px 32px;
      font-size: 1.1rem;
      box-shadow: 0 8px 24px rgba(0, 176, 80, 0.35);
    }

    .model-tags-bar {
      width: 100%;
      background: #ffffff;
      padding: 16px 20px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }

    .model-tag-label {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary-color);
      margin-right: 6px;
    }

    .model-tag {
      font-size: 0.78rem;
      background: #f3f4f6;
      color: #374151;
      padding: 4px 10px;
      border-radius: 6px;
      font-weight: 500;
      border: 1px solid #e5e7eb;
      transition: var(--transition);
    }

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

    /* 通用Section */
    .section-block {
      padding: 68px 0;
    }

    .section-block.alt-bg {
      background-color: #ffffff;
      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 44px;
    }

    .section-tag {
      font-size: 0.85rem;
      font-weight: 800;
      color: var(--primary-color);
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 8px;
      display: block;
    }

    .section-title {
      font-size: 2rem;
      font-weight: 800;
      color: #0e331c;
      margin-bottom: 12px;
      letter-spacing: -0.5px;
    }

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

    /* 数据指标 */
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .stat-card {
      background: #ffffff;
      padding: 24px 20px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: var(--transition);
      border-top: 4px solid var(--primary-color);
    }

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

    .stat-num {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary-color);
      line-height: 1.1;
      margin-bottom: 6px;
    }

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

    .stat-text {
      font-size: 0.85rem;
      color: var(--text-light);
    }

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

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

    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(0, 176, 80, 0.4);
    }

    .feature-icon-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 14px;
    }

    .feature-badge {
      font-size: 0.75rem;
      font-weight: 700;
      background: var(--primary-light);
      color: var(--primary-hover);
      padding: 3px 10px;
      border-radius: 20px;
    }

    .feature-name {
      font-size: 1.2rem;
      font-weight: 800;
      color: #0b2e1b;
      margin-bottom: 10px;
    }

    .feature-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }

    .feature-foot {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--primary-color);
      display: flex;
      align-items: center;
      gap: 4px;
    }

    /* 图文混排与素材 */
    .media-card-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
    }

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

    .media-item:hover {
      box-shadow: var(--shadow-md);
    }

    .media-img-wrapper {
      width: 100%;
      background: #eef3f0;
      overflow: hidden;
      aspect-ratio: 16 / 9;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .media-img-wrapper.square-ratio {
      aspect-ratio: 4 / 3;
    }

    .media-img-wrapper img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.4s ease;
    }

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

    .media-content {
      padding: 20px;
    }

    .media-title {
      font-size: 1.15rem;
      font-weight: 800;
      color: #0e331c;
      margin-bottom: 8px;
    }

    .media-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 对比评测表格 */
    .score-summary-bar {
      display: flex;
      align-items: center;
      justify-content: space-around;
      background: var(--primary-light);
      border: 1.5px solid var(--primary-color);
      border-radius: var(--radius-md);
      padding: 20px;
      margin-bottom: 28px;
      flex-wrap: wrap;
      gap: 16px;
    }

    .score-item {
      text-align: center;
    }

    .score-label {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-muted);
    }

    .score-val {
      font-size: 1.8rem;
      font-weight: 900;
      color: var(--primary-hover);
    }

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

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

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

    .compare-table th {
      background-color: #f9fafb;
      font-weight: 800;
      color: var(--text-main);
      font-size: 0.95rem;
    }

    .compare-table th.highlight-th {
      background-color: var(--primary-light);
      color: var(--primary-hover);
      font-size: 1.05rem;
    }

    .compare-table td.highlight-td {
      background-color: rgba(0, 176, 80, 0.03);
      font-weight: 700;
      color: var(--primary-hover);
    }

    /* 流程时间线 */
    .flow-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .flow-card {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      position: relative;
    }

    .flow-step-num {
      width: 38px;
      height: 38px;
      background: var(--primary-gradient);
      color: #ffffff;
      font-weight: 800;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 14px;
      font-size: 1.1rem;
    }

    .flow-title {
      font-size: 1.1rem;
      font-weight: 800;
      margin-bottom: 8px;
      color: #0e331c;
    }

    .flow-text {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

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

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

    .review-stars {
      color: #f59e0b;
      font-size: 1.1rem;
      margin-bottom: 12px;
    }

    .review-quote {
      font-size: 0.93rem;
      color: var(--text-main);
      line-height: 1.7;
      margin-bottom: 18px;
      font-style: italic;
    }

    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f3f4f6;
      padding-top: 14px;
    }

    .avatar-placeholder {
      width: 42px;
      height: 42px;
      background: var(--primary-light);
      color: var(--primary-color);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1rem;
      flex-shrink: 0;
    }

    .author-info h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: #0e331c;
    }

    .author-info p {
      font-size: 0.8rem;
      color: var(--text-light);
    }

    /* FAQ 折叠面板 */
    .faq-list {
      max-width: 880px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .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-color);
      box-shadow: var(--shadow-sm);
    }

    .faq-question {
      width: 100%;
      text-align: left;
      padding: 18px 22px;
      background: none;
      border: none;
      font-size: 1.02rem;
      font-weight: 700;
      color: #0e331c;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
    }

    .faq-icon {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary-color);
      transition: transform 0.28s ease;
      flex-shrink: 0;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
      background-color: #fafbfc;
      border-top: 1px solid transparent;
    }

    .faq-item.active .faq-answer {
      max-height: 300px;
      border-top-color: #f3f4f6;
      transition: max-height 0.35s ease-in-out;
    }

    .faq-answer-inner {
      padding: 16px 22px 20px;
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 表单与联系区 */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 36px;
      background: #ffffff;
      padding: 36px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
    }

    .contact-info-col {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .contact-item-group {
      display: flex;
      flex-direction: column;
      gap: 16px;
      margin-bottom: 24px;
    }

    .contact-row {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 0.95rem;
      color: var(--text-main);
    }

    .contact-label {
      font-weight: 700;
      color: #0e331c;
      min-width: 90px;
    }

    .qr-container {
      background: var(--primary-light);
      border: 1px solid rgba(0, 176, 80, 0.2);
      border-radius: var(--radius-md);
      padding: 16px;
      text-align: center;
      max-width: 220px;
    }

    .qr-container img {
      max-width: 160px;
      height: auto;
      border-radius: 6px;
      display: block;
      margin: 0 auto 8px;
    }

    .qr-tip {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary-hover);
    }

    .form-group {
      margin-bottom: 16px;
    }

    .form-group label {
      display: block;
      font-size: 0.9rem;
      font-weight: 700;
      color: #0e331c;
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: 1.5px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.92rem;
      color: var(--text-main);
      outline: none;
      transition: var(--transition);
      background: #fafbfc;
    }

    .form-control:focus {
      border-color: var(--primary-color);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(0, 176, 80, 0.15);
    }

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

    .form-submit-btn {
      width: 100%;
      padding: 14px;
      font-size: 1.05rem;
      font-weight: 800;
    }

    /* 文章与百科板块 */
    .article-tags-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 20px;
    }

    .article-tag-link {
      padding: 8px 16px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      text-decoration: none;
      color: var(--text-main);
      font-size: 0.9rem;
      font-weight: 600;
      transition: var(--transition);
    }

    .article-tag-link:hover {
      background: var(--primary-light);
      border-color: var(--primary-color);
      color: var(--primary-color);
    }

    /* 友情链接 */
    .friend-links-box {
      padding: 24px;
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 12px;
    }

    .friend-links-box a {
      color: var(--text-muted);
      text-decoration: none;
      font-size: 0.88rem;
      padding: 4px 10px;
      background: #f9fafb;
      border-radius: 4px;
      transition: var(--transition);
    }

    .friend-links-box a:hover {
      color: var(--primary-color);
      background: var(--primary-light);
    }

    /* 页脚 */
    .site-footer {
      background-color: #0b2014;
      color: #9ca3af;
      padding: 50px 0 30px;
      border-top: 3px solid var(--primary-color);
    }

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

    .footer-col h4 {
      color: #ffffff;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 18px;
    }

    .footer-col p {
      font-size: 0.88rem;
      line-height: 1.7;
      margin-bottom: 12px;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .footer-links a {
      color: #9ca3af;
      text-decoration: none;
      font-size: 0.88rem;
      transition: var(--transition);
    }

    .footer-links a:hover {
      color: #10d876;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 24px;
      text-align: center;
      font-size: 0.85rem;
      color: #6b7280;
    }

    .footer-bottom a {
      color: #9ca3af;
      text-decoration: none;
    }

    .footer-bottom a:hover {
      color: #ffffff;
    }

    /* 浮动客服入口 */
    .floating-service {
      position: fixed;
      right: 24px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: var(--primary-gradient);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 16px rgba(0, 176, 80, 0.4);
      text-decoration: none;
      font-size: 1.3rem;
      font-weight: 800;
      transition: var(--transition);
      cursor: pointer;
      border: none;
    }

    .float-btn:hover {
      transform: scale(1.1);
    }

    /* 响应式调整 */
    @media (max-width: 1024px) {
      .feature-grid, .review-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .stats-grid, .flow-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .contact-wrapper {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-btn {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 74px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 16px 24px;
        box-shadow: var(--shadow-md);
        border-bottom: 1px solid var(--border-color);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links a {
        width: 100%;
        padding: 10px 0;
      }
      .hero-title {
        font-size: 1.9rem;
      }
      .feature-grid, .review-grid, .media-card-grid {
        grid-template-columns: 1fr;
      }
      .stats-grid, .flow-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }