:root {
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --text-main: #0f172a;
      --text-muted: #475569;
      --color-primary: #0284c7;
      --color-primary-dark: #0369a1;
      --color-accent-pink: #ec4899;
      --color-accent-amber: #f59e0b;
      --color-accent-cyan: #06b6d4;
      --color-accent-purple: #8b5cf6;
      --border-light: #e2e8f0;
      --border-accent: #cbd5e1;
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.05);
      --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
      --shadow-pop: 4px 4px 0px #0f172a;
      --shadow-pop-pink: 4px 4px 0px #ec4899;
      --shadow-pop-cyan: 4px 4px 0px #06b6d4;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.65;
      font-size: 15px;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 头部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(10px);
      border-bottom: 2px solid var(--text-main);
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
      gap: 16px;
    }
    .brand-box {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      font-size: 1.25rem;
      color: var(--text-main);
    }
    .brand-box img {
      max-height: 38px;
      width: auto;
      display: block;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0px;
      list-style: none;
    }
    .nav-links a {
      font-weight: 600;
      color: var(--text-main);
      padding: 6px 10px;
      border-radius: var(--radius-sm);
      transition: all 0.2s ease;
    }
    .nav-links a:hover {
      background: #fef08a;
      color: #0f172a;
    }
    .nav-cta-btn {
      background: #0284c7;
      color: #ffffff !important;
      font-weight: 700;
      padding: 10px 20px !important;
      border-radius: 8px;
      border: 2px solid var(--text-main);
      box-shadow: 2px 2px 0px var(--text-main);
      transition: transform 0.15s ease, box-shadow 0.15s ease;
    }
    .nav-cta-btn:hover {
      transform: translate(-1px, -1px);
      box-shadow: 4px 4px 0px var(--text-main);
      background: #0369a1 !important;
    }
    .mobile-menu-toggle {
      display: none;
      background: #ffffff;
      border: 2px solid var(--text-main);
      padding: 6px 12px;
      font-size: 1rem;
      font-weight: 700;
      border-radius: 6px;
      cursor: pointer;
    }

    /* 首屏无图高对比设计 */
    .hero-section {
      background: radial-gradient(circle at 10% 20%, #e0f2fe 0%, #fef9c3 40%, #fce7f3 90%);
      border-bottom: 2px solid var(--text-main);
      padding: 70px 0 60px;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 36px;
      align-items: center;
    }
    .hero-tag-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: #ec4899;
      color: #ffffff;
      font-weight: 700;
      font-size: 0.85rem;
      padding: 6px 14px;
      border-radius: 30px;
      border: 2px solid var(--text-main);
      box-shadow: 2px 2px 0px var(--text-main);
      margin-bottom: 18px;
    }
    .hero-title {
      font-size: 2.3rem;
      line-height: 1.25;
      font-weight: 900;
      color: var(--text-main);
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }
    .hero-title span {
      background: linear-gradient(120deg, #0284c7, #8b5cf6);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      display: inline-block;
    }
    .hero-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      margin-bottom: 24px;
      line-height: 1.7;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-bottom: 28px;
    }
    .btn-pop {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
      font-weight: 700;
      padding: 13px 26px;
      border-radius: 10px;
      border: 2px solid var(--text-main);
      cursor: pointer;
      transition: all 0.2s ease;
    }
    .btn-pop-primary {
      background: #facc15;
      color: var(--text-main);
      box-shadow: var(--shadow-pop);
    }
    .btn-pop-primary:hover {
      transform: translate(-2px, -2px);
      box-shadow: 6px 6px 0px var(--text-main);
      background: #fde047;
    }
    .btn-pop-cyan {
      background: #06b6d4;
      color: #ffffff;
      box-shadow: var(--shadow-pop);
    }
    .btn-pop-cyan:hover {
      transform: translate(-2px, -2px);
      box-shadow: 6px 6px 0px var(--text-main);
      background: #0891b2;
    }
    .btn-pop-white {
      background: #ffffff;
      color: var(--text-main);
      box-shadow: var(--shadow-pop);
    }
    .btn-pop-white:hover {
      transform: translate(-2px, -2px);
      box-shadow: 6px 6px 0px var(--text-main);
      background: #f1f5f9;
    }
    .hero-metrics-pill {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .metric-item {
      background: #ffffff;
      border: 2px solid var(--text-main);
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 0.85rem;
      font-weight: 700;
      box-shadow: 2px 2px 0px var(--text-main);
    }

    .hero-card-panel {
      background: #ffffff;
      border: 3px solid var(--text-main);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: 8px 8px 0px #0284c7;
    }
    .panel-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 2px solid #e2e8f0;
      padding-bottom: 12px;
      margin-bottom: 16px;
    }
    .panel-title {
      font-weight: 800;
      font-size: 1.1rem;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .status-dot {
      width: 10px;
      height: 10px;
      background: #10b981;
      border-radius: 50%;
      display: inline-block;
    }
    .model-chip-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 8px;
      margin-bottom: 18px;
    }
    .model-chip {
      background: #f8fafc;
      border: 1px solid var(--text-main);
      padding: 6px 8px;
      border-radius: 6px;
      font-size: 0.8rem;
      font-weight: 700;
      text-align: center;
      transition: background 0.2s;
    }
    .model-chip:hover {
      background: #fef08a;
    }
    .panel-highlight-box {
      background: #eff6ff;
      border: 2px dashed #0284c7;
      padding: 14px;
      border-radius: 10px;
      font-size: 0.88rem;
      color: #1e3a8a;
      line-height: 1.5;
    }

    /* 通用Section布局 */
    .section-wrap {
      padding: 70px 0;
      border-bottom: 1px solid var(--border-light);
    }
    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 44px;
    }
    .section-eyebrow {
      display: inline-block;
      font-weight: 800;
      font-size: 0.85rem;
      text-transform: uppercase;
      letter-spacing: 1px;
      padding: 4px 12px;
      border-radius: 4px;
      border: 1.5px solid var(--text-main);
      background: #fde047;
      box-shadow: 2px 2px 0px var(--text-main);
      margin-bottom: 12px;
    }
    .section-title {
      font-size: 1.85rem;
      font-weight: 900;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .section-subtitle {
      font-size: 1rem;
      color: var(--text-muted);
    }

    /* 数据指标区 */
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .stat-card {
      background: #ffffff;
      border: 2px solid var(--text-main);
      padding: 24px 20px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-pop);
      text-align: center;
      transition: transform 0.2s;
    }
    .stat-card:hover {
      transform: translateY(-4px);
    }
    .stat-card:nth-child(1) { background: #fef9c3; }
    .stat-card:nth-child(2) { background: #e0f2fe; }
    .stat-card:nth-child(3) { background: #fce7f3; }
    .stat-card:nth-child(4) { background: #dcfce7; }
    .stat-num {
      font-size: 2.2rem;
      font-weight: 900;
      line-height: 1.1;
      margin-bottom: 6px;
      color: var(--text-main);
    }
    .stat-label {
      font-weight: 700;
      font-size: 0.95rem;
      color: var(--text-main);
    }

    /* 场景卡片网格 */
    .cards-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .cards-grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .feature-card {
      background: var(--bg-card);
      border: 2px solid var(--text-main);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-pop);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: transform 0.2s, box-shadow 0.2s;
    }
    .feature-card:hover {
      transform: translate(-3px, -3px);
      box-shadow: 7px 7px 0px var(--text-main);
    }
    .card-badge {
      align-self: flex-start;
      font-size: 0.75rem;
      font-weight: 800;
      padding: 4px 10px;
      border-radius: 4px;
      border: 1.5px solid var(--text-main);
      margin-bottom: 14px;
    }
    .badge-pink { background: #fbcfe8; color: #831843; }
    .badge-cyan { background: #cffafe; color: #164e63; }
    .badge-yellow { background: #fef08a; color: #713f12; }
    .badge-green { background: #bbf7d0; color: #14532d; }
    .card-title {
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 10px;
      color: var(--text-main);
    }
    .card-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      margin-bottom: 18px;
      line-height: 1.6;
    }
    .card-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-top: auto;
    }
    .tag-item {
      font-size: 0.78rem;
      background: #f1f5f9;
      border: 1px solid var(--border-accent);
      padding: 3px 8px;
      border-radius: 4px;
      font-weight: 600;
    }

    /* 素材图片展示卡片 */
    .media-card {
      background: #ffffff;
      border: 2px solid var(--text-main);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-pop);
    }
    .media-card-img-wrap {
      width: 100%;
      background: #e2e8f0;
      border-bottom: 2px solid var(--text-main);
      overflow: hidden;
    }
    .media-card-img-wrap img {
      width: 100%;
      height: auto;
      display: block;
      transition: transform 0.3s ease;
    }
    .media-card:hover .media-card-img-wrap img {
      transform: scale(1.03);
    }
    .media-card-body {
      padding: 20px;
    }

    /* 标准流程时间线 */
    .process-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      position: relative;
    }
    .process-step {
      background: #ffffff;
      border: 2px solid var(--text-main);
      border-radius: var(--radius-md);
      padding: 22px 18px;
      box-shadow: var(--shadow-pop);
      position: relative;
    }
    .step-number {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: #ec4899;
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 1.1rem;
      border: 2px solid var(--text-main);
      margin-bottom: 14px;
    }
    .step-title {
      font-weight: 800;
      font-size: 1.05rem;
      margin-bottom: 8px;
    }
    .step-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* 对比评测板块 */
    .rating-banner {
      background: #ffffff;
      border: 3px solid var(--text-main);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: 8px 8px 0px #ec4899;
      margin-bottom: 30px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
    }
    .rating-score-box {
      display: flex;
      align-items: center;
      gap: 20px;
    }
    .score-big {
      font-size: 3.5rem;
      font-weight: 900;
      color: #ec4899;
      line-height: 1;
    }
    .score-detail h3 {
      font-size: 1.25rem;
      font-weight: 900;
      margin-bottom: 4px;
    }
    .score-stars {
      color: #f59e0b;
      font-size: 1.2rem;
      font-weight: 900;
    }
    .table-container {
      width: 100%;
      overflow-x: auto;
      border: 2px solid var(--text-main);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-pop);
      background: #ffffff;
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }
    .compare-table th, .compare-table td {
      padding: 14px 18px;
      border-bottom: 1px solid var(--border-light);
      font-size: 0.92rem;
    }
    .compare-table th {
      background: #f1f5f9;
      font-weight: 800;
      color: var(--text-main);
      border-bottom: 2px solid var(--text-main);
    }
    .compare-table tr:hover {
      background: #f8fafc;
    }
    .highlight-col {
      background: #fefce8;
      font-weight: 700;
      color: #0369a1;
    }
    .tag-check {
      display: inline-block;
      padding: 2px 8px;
      background: #dcfce7;
      color: #15803d;
      border: 1px solid #86efac;
      border-radius: 4px;
      font-weight: 700;
      font-size: 0.8rem;
    }

    /* 用户评论 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .review-card {
      background: #ffffff;
      border: 2px solid var(--text-main);
      border-radius: var(--radius-md);
      padding: 22px;
      box-shadow: var(--shadow-pop);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-text {
      font-size: 0.92rem;
      color: var(--text-main);
      margin-bottom: 16px;
      line-height: 1.6;
    }
    .reviewer-info {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px dashed var(--border-accent);
      padding-top: 12px;
    }
    .avatar-mock {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: #facc15;
      border: 2px solid var(--text-main);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 1rem;
    }
    .reviewer-role {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* FAQ 折叠面板 */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-item {
      background: #ffffff;
      border: 2px solid var(--text-main);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-pop);
      transition: all 0.2s;
    }
    .faq-question {
      padding: 18px 22px;
      font-weight: 800;
      font-size: 1.05rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
      background: #ffffff;
    }
    .faq-question:hover {
      background: #fef9c3;
    }
    .faq-toggle-icon {
      font-size: 1.2rem;
      font-weight: 900;
      transition: transform 0.2s;
    }
    .faq-answer {
      display: none;
      padding: 0 22px 18px;
      color: var(--text-muted);
      font-size: 0.92rem;
      line-height: 1.6;
      border-top: 1px dashed var(--border-light);
    }
    .faq-item.active .faq-answer {
      display: block;
    }
    .faq-item.active .faq-toggle-icon {
      transform: rotate(45deg);
    }

    /* 表单区域 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 32px;
    }
    .contact-info-panel {
      background: #ffffff;
      border: 3px solid var(--text-main);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: 6px 6px 0px #06b6d4;
    }
    .info-group {
      margin-bottom: 20px;
    }
    .info-group-title {
      font-weight: 800;
      font-size: 1.05rem;
      margin-bottom: 6px;
      color: var(--text-main);
    }
    .info-group-desc {
      color: var(--text-muted);
      font-size: 0.95rem;
    }
    .qr-container {
      margin-top: 20px;
      padding: 16px;
      background: #f8fafc;
      border: 2px dashed var(--text-main);
      border-radius: var(--radius-md);
      text-align: center;
    }
    .qr-container img {
      max-width: 140px;
      height: auto;
      display: block;
      margin: 0 auto 10px;
      border: 1px solid var(--text-main);
    }
    .form-panel {
      background: #ffffff;
      border: 3px solid var(--text-main);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: 6px 6px 0px #facc15;
    }
    .form-group {
      margin-bottom: 18px;
    }
    .form-label {
      display: block;
      font-weight: 700;
      font-size: 0.9rem;
      margin-bottom: 6px;
      color: var(--text-main);
    }
    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 14px;
      border: 2px solid var(--text-main);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      background: #ffffff;
      color: var(--text-main);
      outline: none;
      transition: box-shadow 0.2s;
    }
    .form-input:focus, .form-select:focus, .form-textarea:focus {
      box-shadow: 3px 3px 0px #0284c7;
    }
    .form-textarea {
      resize: vertical;
      min-height: 100px;
    }

    /* 行业资讯 & 最新文章 */
    .article-links-box {
      background: #ffffff;
      border: 2px solid var(--text-main);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-pop);
      margin-top: 24px;
    }
    .article-links-list {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 14px;
      list-style: none;
    }
    .article-links-list a {
      font-weight: 600;
      color: #0284c7;
      text-decoration: underline;
      display: inline-block;
      transition: color 0.2s;
    }
    .article-links-list a:hover {
      color: #ec4899;
    }

    /* 友情链接与页脚 */
    .friend-links-sec {
      background: #f1f5f9;
      border-top: 2px solid var(--text-main);
      padding: 30px 0;
    }
    .links-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
    }
    .links-title {
      font-weight: 800;
      font-size: 0.95rem;
      color: var(--text-main);
    }
    .links-wrap a {
      background: #ffffff;
      border: 1.5px solid var(--text-main);
      padding: 5px 12px;
      border-radius: 6px;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-main);
      transition: all 0.2s;
    }
    .links-wrap a:hover {
      background: #fef08a;
      transform: translateY(-2px);
    }

    .site-footer {
      background: #0f172a;
      color: #e2e8f0;
      padding: 50px 0 30px;
      border-top: 2px solid var(--text-main);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 30px;
      margin-bottom: 40px;
    }
    .footer-col h4 {
      color: #ffffff;
      font-size: 1.1rem;
      font-weight: 800;
      margin-bottom: 16px;
      position: relative;
      padding-bottom: 8px;
    }
    .footer-col h4::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 30px;
      height: 3px;
      background: #ec4899;
    }
    .footer-col p {
      font-size: 0.88rem;
      color: #94a3b8;
      line-height: 1.7;
      margin-bottom: 12px;
    }
    .footer-menu {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .footer-menu a {
      color: #cbd5e1;
      font-size: 0.88rem;
      transition: color 0.2s;
    }
    .footer-menu a:hover {
      color: #facc15;
    }
    .footer-bottom {
      border-top: 1px solid #334155;
      padding-top: 20px;
      text-align: center;
      font-size: 0.85rem;
      color: #64748b;
    }

    /* 浮动客服 */
    .float-dock {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 99;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .dock-btn {
      width: 48px;
      height: 48px;
      background: #ffffff;
      border: 2px solid var(--text-main);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 2px 2px 0px var(--text-main);
      font-weight: 900;
      font-size: 1.1rem;
      cursor: pointer;
      transition: transform 0.2s;
    }
    .dock-btn:hover {
      transform: scale(1.1);
      background: #fef08a;
    }

    /* 响应式断点 */
    @media (max-width: 992px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .cards-grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .reviews-grid {
        grid-template-columns: 1fr;
      }
      .contact-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .article-links-list {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        border-bottom: 2px solid var(--text-main);
        padding: 20px;
        gap: 12px;
      }
      .nav-links.active {
        display: flex;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .hero-title {
        font-size: 1.8rem;
      }
      .cards-grid-3, .cards-grid-2 {
        grid-template-columns: 1fr;
      }
      .process-timeline {
        grid-template-columns: 1fr;
      }
      .stats-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .article-links-list {
        grid-template-columns: 1fr;
      }
      .rating-banner {
        flex-direction: column;
        text-align: center;
      }
      .rating-score-box {
        flex-direction: column;
      }
    }