:root {
      --primary-yellow: #facc15;
      --primary-yellow-hover: #eab308;
      --primary-yellow-light: #fef08a;
      --primary-yellow-subtle: #fefce8;
      --accent-dark: #0f172a;
      --accent-slate: #1e293b;
      --accent-gray: #475569;
      --bg-light: #f8fafc;
      --bg-white: #ffffff;
      --border-color: #f1f5f9;
      --border-yellow: #fde047;
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 10px 25px -5px rgba(250, 204, 21, 0.15), 0 8px 10px -6px rgba(15, 23, 42, 0.05);
      --shadow-lg: 0 20px 30px -10px rgba(15, 23, 42, 0.08);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: var(--font-base);
      background-color: var(--bg-light);
      color: var(--accent-dark);
      line-height: 1.6;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

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

    img {
      display: block;
      max-width: 100%;
      height: auto;
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(250, 204, 21, 0.25);
      box-shadow: var(--shadow-sm);
    }

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

    .brand-group {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .logo-container {
      display: flex;
      align-items: center;
      max-height: 48px;
    }

    .logo-container img {
      max-height: 44px;
      width: auto;
      object-fit: contain;
    }

    .ai-page-home-link {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--accent-dark);
      padding: 6px 14px;
      border-radius: var(--radius-sm);
      background: var(--primary-yellow-subtle);
      border: 1px solid var(--border-yellow);
    }

    .ai-page-home-link:hover {
      background: var(--primary-yellow);
      color: var(--accent-dark);
    }

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

    .nav-links li a {
      font-size: 0.92rem;
      font-weight: 500;
      color: var(--accent-slate);
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      display: inline-block;
    }

    .nav-links li a:hover {
      color: #000;
      background: var(--primary-yellow-light);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.95rem;
      padding: 10px 22px;
      border-radius: var(--radius-md);
      cursor: pointer;
      border: none;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      text-align: center;
    }

    .btn-shine {
      background: linear-gradient(135deg, #fde047 0%, #facc15 50%, #eab308 100%);
      color: #0f172a;
      box-shadow: 0 4px 15px rgba(250, 204, 21, 0.4);
      position: relative;
      overflow: hidden;
    }

    .btn-shine:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 25px rgba(250, 204, 21, 0.6);
      background: linear-gradient(135deg, #fef08a 0%, #fde047 50%, #facc15 100%);
    }

    .btn-outline {
      background: #ffffff;
      color: var(--accent-dark);
      border: 1.5px solid #cbd5e1;
    }

    .btn-outline:hover {
      border-color: var(--primary-yellow);
      background: var(--primary-yellow-subtle);
    }

    .mobile-menu-btn {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: transparent;
      border: none;
      cursor: pointer;
      padding: 6px;
    }

    .mobile-menu-btn span {
      width: 24px;
      height: 2.5px;
      background-color: var(--accent-dark);
      border-radius: 2px;
    }

    .hero-section {
      padding: 80px 0 60px;
      background: radial-gradient(circle at 50% 0%, #fefce8 0%, #ffffff 70%, #f8fafc 100%);
      border-bottom: 1px solid var(--border-color);
      position: relative;
      overflow: hidden;
    }

    .hero-wrapper {
      text-align: center;
      max-width: 960px;
      margin: 0 auto;
    }

    .badge-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #fef08a;
      border: 1px solid #facc15;
      padding: 6px 18px;
      border-radius: 9999px;
      font-size: 0.88rem;
      font-weight: 700;
      color: #713f12;
      margin-bottom: 24px;
      box-shadow: 0 2px 6px rgba(250, 204, 21, 0.2);
    }

    .badge-pill .pulse-dot {
      width: 8px;
      height: 8px;
      background-color: #ca8a04;
      border-radius: 50%;
      box-shadow: 0 0 0 0 rgba(202, 138, 4, 0.7);
      animation: pulse 2s infinite;
    }

    @keyframes pulse {
      0% { box-shadow: 0 0 0 0 rgba(202, 138, 4, 0.7); }
      70% { box-shadow: 0 0 0 8px rgba(202, 138, 4, 0); }
      100% { box-shadow: 0 0 0 0 rgba(202, 138, 4, 0); }
    }

    .hero-title {
      font-size: 2.75rem;
      line-height: 1.25;
      font-weight: 900;
      color: var(--accent-dark);
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-title .highlight-yellow {
      background: linear-gradient(180deg, transparent 65%, #fde047 65%);
      padding: 0 6px;
      display: inline-block;
    }

    .hero-desc {
      font-size: 1.18rem;
      color: var(--accent-gray);
      max-width: 800px;
      margin: 0 auto 36px;
      line-height: 1.8;
    }

    .hero-cta-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 18px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }

    .btn-hero-large {
      font-size: 1.12rem;
      padding: 16px 36px;
      border-radius: var(--radius-md);
      box-shadow: 0 10px 25px rgba(250, 204, 21, 0.45);
    }

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 20px;
      background: #ffffff;
      padding: 28px;
      border-radius: var(--radius-lg);
      border: 1px solid #fef08a;
      box-shadow: var(--shadow-md);
    }

    .stat-card {
      text-align: center;
      padding: 10px;
    }

    .stat-num {
      font-size: 2rem;
      font-weight: 900;
      color: var(--accent-dark);
      margin-bottom: 4px;
    }

    .stat-num span {
      color: #ca8a04;
      font-size: 1.25rem;
    }

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

    .section-wrap {
      padding: 88px 0;
      border-bottom: 1px solid var(--border-color);
    }

    .section-bg-alt {
      background: #ffffff;
    }

    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 54px;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.84rem;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: #854d0e;
      background: var(--primary-yellow-light);
      padding: 4px 14px;
      border-radius: 6px;
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 2.15rem;
      font-weight: 800;
      color: var(--accent-dark);
      margin-bottom: 14px;
    }

    .section-subtitle {
      font-size: 1.05rem;
      color: var(--accent-gray);
      line-height: 1.7;
    }

    .about-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 40px;
      align-items: center;
    }

    .about-text h3 {
      font-size: 1.6rem;
      font-weight: 800;
      margin-bottom: 18px;
      color: var(--accent-dark);
    }

    .about-text p {
      font-size: 1rem;
      color: var(--accent-gray);
      margin-bottom: 20px;
      line-height: 1.8;
    }

    .about-features {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-top: 24px;
    }

    .about-feat-item {
      background: var(--primary-yellow-subtle);
      border: 1px solid var(--border-yellow);
      padding: 16px;
      border-radius: var(--radius-sm);
    }

    .about-feat-item strong {
      display: block;
      color: var(--accent-dark);
      font-size: 1rem;
      margin-bottom: 4px;
    }

    .about-feat-item span {
      font-size: 0.85rem;
      color: var(--accent-gray);
    }

    .about-media {
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
      border: 2px solid var(--primary-yellow-light);
    }

    .model-pills-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 36px;
    }

    .model-badge {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      padding: 8px 16px;
      border-radius: 9999px;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--accent-slate);
      transition: all 0.2s ease;
    }

    .model-badge:hover {
      border-color: var(--primary-yellow);
      background: var(--primary-yellow-light);
      color: #000;
      transform: translateY(-2px);
    }

    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: #ffffff;
      border: 1px solid #f1f5f9;
      padding: 28px;
      border-radius: var(--radius-md);
      transition: all 0.3s ease;
      position: relative;
      display: flex;
      flex-direction: column;
    }

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

    .service-icon-box {
      width: 48px;
      height: 48px;
      background: var(--primary-yellow-light);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.35rem;
      margin-bottom: 18px;
      color: #854d0e;
    }

    .service-title {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--accent-dark);
    }

    .service-desc {
      font-size: 0.92rem;
      color: var(--accent-gray);
      line-height: 1.65;
      flex-grow: 1;
    }

    .process-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }

    .process-step {
      background: #ffffff;
      border: 1px solid #f1f5f9;
      border-top: 4px solid var(--primary-yellow);
      padding: 24px;
      border-radius: var(--radius-sm);
      box-shadow: var(--shadow-sm);
    }

    .step-badge {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 900;
      color: #854d0e;
      background: var(--primary-yellow-light);
      padding: 2px 8px;
      border-radius: 4px;
      margin-bottom: 12px;
    }

    .step-title {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .step-desc {
      font-size: 0.88rem;
      color: var(--accent-gray);
      line-height: 1.6;
    }

    .case-gallery {
      display: grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap: 24px;
    }

    .case-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }

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

    .case-img-wrap {
      width: 100%;
      height: 220px;
      background: #e2e8f0;
      overflow: hidden;
    }

    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .case-card:hover .case-img-wrap img {
      transform: scale(1.05);
    }

    .case-content {
      padding: 20px;
    }

    .case-tag {
      font-size: 0.75rem;
      font-weight: 700;
      color: #854d0e;
      background: var(--primary-yellow-subtle);
      border: 1px solid var(--border-yellow);
      padding: 3px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 10px;
    }

    .case-name {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 6px;
    }

    .case-desc {
      font-size: 0.86rem;
      color: var(--accent-gray);
      line-height: 1.55;
    }

    .rating-hero-card {
      background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 40px;
      margin-bottom: 36px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      box-shadow: var(--shadow-lg);
      border: 2px solid var(--primary-yellow);
    }

    .rating-hero-left h3 {
      font-size: 1.8rem;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 8px;
    }

    .rating-hero-left p {
      color: #94a3b8;
      font-size: 1rem;
    }

    .rating-hero-right {
      text-align: right;
    }

    .stars-box {
      color: var(--primary-yellow);
      font-size: 1.5rem;
      margin-bottom: 4px;
      letter-spacing: 2px;
    }

    .score-big {
      font-size: 2.8rem;
      font-weight: 900;
      color: var(--primary-yellow);
      line-height: 1;
    }

    .score-total {
      font-size: 1.1rem;
      color: #cbd5e1;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
      background: #ffffff;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      border: 1px solid #e2e8f0;
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 650px;
    }

    .compare-table th, .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #e2e8f0;
      font-size: 0.92rem;
    }

    .compare-table th {
      background: #f8fafc;
      font-weight: 700;
      color: var(--accent-dark);
    }

    .compare-table th.highlight-col, .compare-table td.highlight-col {
      background: var(--primary-yellow-subtle);
      font-weight: 700;
      color: #854d0e;
      border-left: 2px solid var(--primary-yellow);
      border-right: 2px solid var(--primary-yellow);
    }

    .compare-table tr:last-child td {
      border-bottom: none;
    }

    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: #ffffff;
      padding: 26px;
      border-radius: var(--radius-md);
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-stars {
      color: #eab308;
      font-size: 0.95rem;
      margin-bottom: 12px;
    }

    .review-text {
      font-size: 0.92rem;
      color: var(--accent-slate);
      line-height: 1.7;
      margin-bottom: 18px;
    }

    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f1f5f9;
      padding-top: 14px;
    }

    .author-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--primary-yellow-light);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      color: #854d0e;
    }

    .author-name {
      font-weight: 700;
      font-size: 0.95rem;
      color: var(--accent-dark);
    }

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

    .faq-container {
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
      overflow: hidden;
      transition: all 0.25s ease;
    }

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

    .faq-question {
      padding: 18px 22px;
      font-size: 1.02rem;
      font-weight: 700;
      color: var(--accent-dark);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-question:hover {
      background: var(--primary-yellow-subtle);
    }

    .faq-icon {
      font-size: 1.2rem;
      font-weight: 400;
      transition: transform 0.25s ease;
    }

    .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);
      padding: 0 22px;
      color: var(--accent-gray);
      font-size: 0.92rem;
      line-height: 1.7;
    }

    .faq-item.active .faq-answer {
      max-height: 500px;
      transition: max-height 0.3s cubic-bezier(1, 0, 1, 0);
      padding: 0 22px 20px;
    }

    .form-contact-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 36px;
      align-items: start;
    }

    .form-card {
      background: #ffffff;
      padding: 36px;
      border-radius: var(--radius-lg);
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-md);
    }

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

    .form-label {
      display: block;
      font-size: 0.9rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--accent-dark);
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1.5px solid #cbd5e1;
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      font-family: inherit;
      background: #f8fafc;
      transition: all 0.2s ease;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--primary-yellow-hover);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(250, 204, 21, 0.2);
    }

    .contact-info-card {
      background: #1e293b;
      color: #ffffff;
      padding: 36px;
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-md);
    }

    .contact-info-card h4 {
      font-size: 1.35rem;
      margin-bottom: 20px;
      color: var(--primary-yellow);
    }

    .contact-item {
      margin-bottom: 16px;
      font-size: 0.92rem;
      color: #cbd5e1;
    }

    .contact-item strong {
      color: #ffffff;
      display: inline-block;
      min-width: 90px;
    }

    .qr-box {
      margin-top: 24px;
      padding-top: 20px;
      border-top: 1px solid #334155;
      text-align: center;
    }

    .qr-img-wrap {
      width: 140px;
      height: 140px;
      margin: 12px auto;
      background: #ffffff;
      padding: 6px;
      border-radius: 8px;
    }

    .articles-list-box {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid #e2e8f0;
      margin-top: 28px;
    }

    .article-item-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 12px 0;
      border-bottom: 1px dashed #e2e8f0;
      font-size: 0.92rem;
    }

    .article-item-row:last-child {
      border-bottom: none;
    }

    .article-item-row a:hover {
      color: #ca8a04;
      text-decoration: underline;
    }

    .site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 60px 0 30px;
      border-top: 3px solid var(--primary-yellow);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 36px;
      margin-bottom: 40px;
    }

    .footer-brand-text {
      font-size: 0.88rem;
      line-height: 1.8;
      margin-top: 14px;
      color: #cbd5e1;
    }

    .footer-col h5 {
      font-size: 1.05rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 18px;
      border-left: 3px solid var(--primary-yellow);
      padding-left: 8px;
    }

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

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

    .footer-links-list li a {
      color: #94a3b8;
      font-size: 0.88rem;
    }

    .footer-links-list li a:hover {
      color: var(--primary-yellow);
      padding-left: 4px;
    }

    .friendly-links-container {
      padding: 20px 0;
      border-top: 1px solid #1e293b;
      margin-bottom: 24px;
    }

    .friendly-links-container strong {
      color: #ffffff;
      font-size: 0.9rem;
      display: inline-block;
      margin-right: 14px;
    }

    .friendly-links-group {
      display: inline-flex;
      flex-wrap: wrap;
      gap: 14px;
    }

    .friendly-links-group a {
      color: #94a3b8;
      font-size: 0.85rem;
    }

    .friendly-links-group a:hover {
      color: var(--primary-yellow);
    }

    .footer-bottom {
      text-align: center;
      padding-top: 24px;
      border-top: 1px solid #1e293b;
      font-size: 0.82rem;
      color: #64748b;
    }

    .float-panel {
      position: fixed;
      right: 24px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      border: 2px solid var(--primary-yellow);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      color: var(--accent-dark);
      font-weight: 700;
      font-size: 0.85rem;
      transition: all 0.25s ease;
    }

    .float-btn:hover {
      background: var(--primary-yellow);
      transform: scale(1.08);
    }

    @media (max-width: 1024px) {
      .services-grid, .reviews-grid, .case-gallery {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-grid, .form-contact-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-btn {
        display: flex;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 76px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 16px 24px;
        border-bottom: 2px solid var(--primary-yellow);
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        display: block;
        padding: 10px 0;
      }
      .hero-title {
        font-size: 2rem;
      }
      .services-grid, .reviews-grid, .case-gallery, .process-timeline, .hero-stats-grid {
        grid-template-columns: 1fr;
      }
      .rating-hero-card {
        flex-direction: column;
        text-align: center;
        gap: 20px;
      }
      .rating-hero-right {
        text-align: center;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }