:root {
      --bg-base: #f7f9fc;
      --bg-surface: #ffffff;
      --bg-subtle: #f0f4f9;
      --text-main: #141c2b;
      --text-muted: #566579;
      --text-light: #8998ab;
      --color-primary: #ff4d00;
      --color-secondary: #0052ff;
      --color-accent: #00b86b;
      --color-purple: #7a1dff;
      --color-yellow: #ffb800;
      --border-color: #e2e8f0;
      --border-bright: #ff4d00;
      --shadow-sm: 0 4px 12px rgba(20, 28, 43, 0.04);
      --shadow-md: 0 8px 24px rgba(20, 28, 43, 0.08);
      --shadow-lg: 0 16px 36px rgba(0, 82, 255, 0.12);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --container-width: 1200px;
      --transition-fast: 0.25s ease;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
      background-color: var(--bg-base);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.6;
    }
    body {
      background-color: var(--bg-base);
      color: var(--text-main);
      min-height: 100vh;
      overflow-x: hidden;
      display: flex;
      flex-direction: column;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: color var(--transition-fast);
    }
    img {
      display: block;
      max-width: 100%;
      height: auto;
    }
    .site-container {
      width: 100%;
      max-width: var(--container-width);
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 2px solid #eaecf2;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-area {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-logo-wrap {
      max-width: 130px;
      display: flex;
      align-items: center;
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 0;
    }
    .nav-links li a {
      display: inline-block;
      padding: 10px 14px;
      font-size: 15px;
      font-weight: 600;
      color: var(--text-main);
      border-radius: var(--radius-sm);
      transition: background-color var(--transition-fast), color var(--transition-fast);
    }
    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--color-primary);
      background-color: #fff2ed;
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 14px;
      font-weight: 700;
      border-radius: var(--radius-full);
      border: 2px solid transparent;
      cursor: pointer;
      transition: all var(--transition-fast);
      text-align: center;
      white-space: nowrap;
    }
    .btn-contrast-hero {
      background: linear-gradient(135deg, #ff4d00, #ff0055);
      color: #ffffff !important;
      box-shadow: 0 8px 20px rgba(255, 77, 0, 0.35);
      font-size: 16px;
      padding: 14px 34px;
    }
    .btn-contrast-hero:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 26px rgba(255, 77, 0, 0.45);
    }
    .btn-primary {
      background-color: var(--color-primary);
      color: #ffffff !important;
      box-shadow: 0 4px 14px rgba(255, 77, 0, 0.25);
    }
    .btn-primary:hover {
      background-color: #e04400;
      transform: translateY(-2px);
    }
    .btn-secondary {
      background-color: var(--color-secondary);
      color: #ffffff !important;
      box-shadow: 0 4px 14px rgba(0, 82, 255, 0.25);
    }
    .btn-secondary:hover {
      background-color: #0043d1;
      transform: translateY(-2px);
    }
    .btn-outline {
      background-color: #ffffff;
      border-color: var(--color-secondary);
      color: var(--color-secondary) !important;
    }
    .btn-outline:hover {
      background-color: #0052ff;
      color: #ffffff !important;
    }
    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      cursor: pointer;
      color: var(--text-main);
      padding: 6px;
    }
    .hero-section {
      position: relative;
      padding: 70px 0 60px;
      background: linear-gradient(135deg, #ffffff 0%, #fff6f0 50%, #f0f6ff 100%);
      border-bottom: 2px solid #e9eff8;
      overflow: hidden;
    }
    .hero-pattern-block {
      position: absolute;
      top: -60px;
      right: -60px;
      width: 240px;
      height: 240px;
      background: radial-gradient(circle, rgba(255, 77, 0, 0.12) 0%, transparent 70%);
      pointer-events: none;
    }
    .hero-pattern-block-left {
      position: absolute;
      bottom: -80px;
      left: -80px;
      width: 280px;
      height: 280px;
      background: radial-gradient(circle, rgba(0, 82, 255, 0.1) 0%, transparent 70%);
      pointer-events: none;
    }
    .hero-content {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 960px;
      margin: 0 auto;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      border: 2px solid var(--color-primary);
      padding: 6px 18px;
      border-radius: var(--radius-full);
      font-size: 13px;
      font-weight: 700;
      color: var(--color-primary);
      margin-bottom: 20px;
      box-shadow: 0 4px 12px rgba(255, 77, 0, 0.12);
    }
    .hero-title {
      font-size: 40px;
      font-weight: 900;
      line-height: 1.25;
      color: #0d1624;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }
    .hero-title .highlight-clash {
      background: linear-gradient(90deg, #ff4d00, #ff0055, #0052ff);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-lead {
      font-size: 18px;
      color: #435265;
      max-width: 800px;
      margin: 0 auto 32px;
      line-height: 1.7;
    }
    .hero-cta-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 40px;
    }
    .hero-feature-pills {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 20px;
    }
    .pill-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 16px 14px;
      border: 2px solid #eaeff6;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: all var(--transition-fast);
    }
    .pill-card:hover {
      border-color: var(--color-primary);
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
    }
    .pill-card strong {
      display: block;
      font-size: 15px;
      color: var(--text-main);
      margin-bottom: 4px;
    }
    .pill-card span {
      font-size: 12px;
      color: var(--text-muted);
    }
    .section-wrap {
      padding: 70px 0;
      border-bottom: 1px solid #edf1f7;
    }
    .section-wrap:nth-child(even) {
      background-color: #ffffff;
    }
    .section-head {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 46px;
    }
    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 1px;
      padding: 4px 14px;
      border-radius: var(--radius-full);
      background-color: #ffede6;
      color: var(--color-primary);
      margin-bottom: 12px;
    }
    .section-title {
      font-size: 30px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 12px;
    }
    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.65;
    }
    .clash-grid {
      display: grid;
      gap: 24px;
    }
    .grid-3 {
      grid-template-columns: repeat(3, 1fr);
    }
    .grid-4 {
      grid-template-columns: repeat(4, 1fr);
    }
    .grid-2 {
      grid-template-columns: repeat(2, 1fr);
    }
    .feature-box {
      background: var(--bg-surface);
      border-radius: var(--radius-md);
      padding: 26px;
      border: 2px solid #eef2f8;
      box-shadow: var(--shadow-sm);
      transition: all var(--transition-fast);
      position: relative;
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .feature-box:hover {
      border-color: var(--color-secondary);
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }
    .feature-badge {
      display: inline-block;
      align-self: flex-start;
      font-size: 12px;
      font-weight: 700;
      padding: 3px 10px;
      border-radius: 6px;
      background: #eef4ff;
      color: var(--color-secondary);
      margin-bottom: 14px;
    }
    .feature-badge.hot {
      background: #ffede6;
      color: var(--color-primary);
    }
    .feature-badge.green {
      background: #e6f9f0;
      color: var(--color-accent);
    }
    .feature-title {
      font-size: 19px;
      font-weight: 800;
      margin-bottom: 10px;
      color: var(--text-main);
    }
    .feature-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .feature-meta {
      font-size: 13px;
      font-weight: 600;
      color: var(--color-primary);
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .comparison-card {
      background: linear-gradient(145deg, #ffffff, #fafcff);
      border: 2px solid #dbe5f5;
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-md);
    }
    .rating-banner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      background: linear-gradient(90deg, #ff4d00, #ff0066);
      color: #ffffff;
      padding: 18px 28px;
      border-radius: var(--radius-md);
      margin-bottom: 28px;
    }
    .rating-title {
      font-size: 20px;
      font-weight: 800;
    }
    .rating-score {
      font-size: 26px;
      font-weight: 900;
      letter-spacing: 1px;
      background: #ffffff;
      color: #ff4d00;
      padding: 4px 18px;
      border-radius: var(--radius-full);
    }
    .custom-table-wrap {
      width: 100%;
      overflow-x: auto;
    }
    .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 #edf2f7;
      font-size: 14px;
    }
    .compare-table th {
      background-color: #f1f6ff;
      color: #0b1e38;
      font-weight: 800;
      font-size: 15px;
    }
    .compare-table tr:hover td {
      background-color: #fcfdfe;
    }
    .highlight-col {
      background-color: #fff9f6;
      font-weight: 700;
      color: var(--color-primary);
      border-left: 2px solid #ff4d00;
      border-right: 2px solid #ff4d00;
    }
    .model-tags-container {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
    }
    .model-pill {
      background: #ffffff;
      border: 1px solid #dce4ef;
      padding: 8px 18px;
      border-radius: var(--radius-full);
      font-size: 13px;
      font-weight: 700;
      color: #27374b;
      box-shadow: 0 2px 6px rgba(0, 0, 0, 0.02);
      transition: all var(--transition-fast);
    }
    .model-pill:hover {
      border-color: var(--color-primary);
      color: var(--color-primary);
      transform: translateY(-2px);
    }
    .gallery-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .gallery-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
    }
    .gallery-img-wrap {
      width: 100%;
      aspect-ratio: 16 / 9;
      background: #eef3f9;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .gallery-img-wrap.square {
      aspect-ratio: 1 / 1;
    }
    .gallery-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .gallery-card:hover .gallery-img-wrap img {
      transform: scale(1.04);
    }
    .gallery-info {
      padding: 16px 20px;
    }
    .gallery-info h4 {
      font-size: 16px;
      font-weight: 800;
      margin-bottom: 6px;
      color: var(--text-main);
    }
    .gallery-info p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .flow-step-item {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 2px solid #edf2f7;
      text-align: center;
      position: relative;
    }
    .step-number {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--color-secondary);
      color: #ffffff;
      font-size: 18px;
      font-weight: 800;
      margin-bottom: 16px;
    }
    .flow-step-item h4 {
      font-size: 17px;
      font-weight: 800;
      margin-bottom: 8px;
    }
    .flow-step-item p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }
    .faq-accordion {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid #e1e7f0;
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: border-color var(--transition-fast);
    }
    .faq-item.active {
      border-color: var(--color-primary);
    }
    .faq-header {
      width: 100%;
      padding: 18px 24px;
      background: none;
      border: none;
      text-align: left;
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }
    .faq-icon {
      font-size: 20px;
      color: var(--color-primary);
      transition: transform var(--transition-fast);
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }
    .faq-body {
      padding: 0 24px 18px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      display: none;
      border-top: 1px solid #f2f5f9;
      padding-top: 14px;
    }
    .faq-item.active .faq-body {
      display: block;
    }
    .review-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .review-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid #e3e9f3;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-text {
      font-size: 14px;
      color: #334155;
      line-height: 1.65;
      margin-bottom: 20px;
      font-style: italic;
    }
    .review-user-info {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f1f5f9;
      padding-top: 14px;
    }
    .avatar-placeholder {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: linear-gradient(135deg, #0052ff, #00b86b);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 16px;
    }
    .user-name {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
    }
    .user-role {
      font-size: 12px;
      color: var(--text-muted);
    }
    .agent-box {
      background: linear-gradient(135deg, #fff7f2 0%, #ffffff 100%);
      border: 2px dashed var(--color-primary);
      border-radius: var(--radius-lg);
      padding: 40px;
      text-align: center;
    }
    .agent-perks {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin: 30px 0;
      text-align: left;
    }
    .agent-perk-card {
      background: #ffffff;
      padding: 20px;
      border-radius: var(--radius-md);
      border: 1px solid #ffe2d4;
    }
    .agent-perk-card strong {
      display: block;
      color: var(--color-primary);
      font-size: 16px;
      margin-bottom: 6px;
    }
    .agent-perk-card p {
      font-size: 13px;
      color: var(--text-muted);
    }
    .contact-form-section {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 2px solid #e1e8f5;
      padding: 40px;
      box-shadow: var(--shadow-md);
    }
    .form-row {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
      margin-bottom: 20px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 8px;
      margin-bottom: 20px;
    }
    .form-group label {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }
    .form-control {
      width: 100%;
      padding: 12px 16px;
      border-radius: var(--radius-sm);
      border: 1.5px solid #d4dde9;
      background: #f8fafc;
      font-size: 14px;
      color: var(--text-main);
      transition: border-color var(--transition-fast);
    }
    .form-control:focus {
      outline: none;
      border-color: var(--color-secondary);
      background: #ffffff;
    }
    textarea.form-control {
      resize: vertical;
      min-height: 110px;
    }
    .contact-info-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 40px;
    }
    .info-card {
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-md);
      padding: 20px;
      text-align: center;
    }
    .info-card h4 {
      font-size: 15px;
      font-weight: 800;
      margin-bottom: 8px;
      color: var(--text-main);
    }
    .info-card p {
      font-size: 13px;
      color: var(--text-muted);
      word-break: break-all;
    }
    .info-card .qr-img {
      max-width: 110px;
      margin: 10px auto 0;
      border-radius: 6px;
      border: 1px solid #e2e8f0;
    }
    .news-box {
      background: #fdfefe;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-md);
      padding: 24px;
      margin-top: 24px;
    }
    .news-link-list {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 14px;
    }
    .news-link-item {
      background: #ffffff;
      border: 1px solid #cbd5e1;
      padding: 8px 16px;
      border-radius: var(--radius-full);
      font-size: 13px;
      color: var(--color-secondary);
      font-weight: 600;
      transition: all var(--transition-fast);
    }
    .news-link-item:hover {
      background: var(--color-secondary);
      color: #ffffff;
    }
    .site-footer {
      background-color: #0d1624;
      color: #94a3b8;
      padding: 50px 0 30px;
      border-top: 4px solid var(--color-primary);
    }
    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 2fr;
      gap: 30px;
      padding-bottom: 40px;
      border-bottom: 1px solid #1e293b;
    }
    .footer-col h4 {
      color: #ffffff;
      font-size: 16px;
      font-weight: 800;
      margin-bottom: 16px;
    }
    .footer-col p {
      font-size: 13px;
      line-height: 1.7;
    }
    .footer-links-list {
      list-style: none;
    }
    .footer-links-list li {
      margin-bottom: 8px;
    }
    .footer-links-list a {
      color: #94a3b8;
      font-size: 13px;
    }
    .footer-links-list a:hover {
      color: #ffffff;
    }
    .friend-links-area {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 10px;
    }
    .friend-links-area a {
      color: #cbd5e1;
      background: #1e293b;
      padding: 4px 12px;
      border-radius: 4px;
      font-size: 12px;
    }
    .friend-links-area a:hover {
      background: var(--color-primary);
      color: #ffffff;
    }
    .footer-bottom {
      padding-top: 24px;
      text-align: center;
      font-size: 13px;
      color: #64748b;
    }
    .footer-bottom a {
      color: #94a3b8;
    }
    .float-tools {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      color: var(--text-main);
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
      border: 1px solid #e2e8f0;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      font-size: 14px;
      font-weight: 800;
      transition: all var(--transition-fast);
      position: relative;
    }
    .float-btn.active-kefu {
      background: var(--color-primary);
      color: #ffffff;
      border-color: var(--color-primary);
    }
    .float-btn:hover {
      transform: scale(1.08);
    }
    .float-qr-popup {
      position: absolute;
      right: 60px;
      bottom: 0;
      background: #ffffff;
      padding: 12px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-lg);
      border: 1px solid #e2e8f0;
      width: 140px;
      display: none;
      text-align: center;
      font-size: 12px;
      color: var(--text-main);
    }
    .float-btn:hover .float-qr-popup {
      display: block;
    }
    @media (max-width: 992px) {
      .grid-3, .grid-4, .flow-steps, .review-grid, .agent-perks, .contact-info-grid, .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-feature-pills {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
      .form-row {
        grid-template-columns: 1fr;
      }
    }
    @media (max-width: 768px) {
      .mobile-menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 16px 20px;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
        border-bottom: 2px solid var(--border-color);
      }
      .nav-links.open {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        display: block;
        padding: 12px;
      }
      .header-actions .btn-outline {
        display: none;
      }
      .hero-title {
        font-size: 28px;
      }
      .hero-lead {
        font-size: 15px;
      }
      .grid-3, .grid-4, .flow-steps, .review-grid, .agent-perks, .contact-info-grid, .grid-2, .gallery-grid, .hero-feature-pills {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
      .rating-banner {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }