:root {
      --primary-yellow: #fcd34d;
      --vibrant-yellow: #f59e0b;
      --dark-yellow: #d97706;
      --bg-cream: #fffdf5;
      --bg-white: #ffffff;
      --bg-light-tint: #fef8e7;
      --text-main: #1e293b;
      --text-muted: #475569;
      --text-sub: #64748b;
      --card-border: #fde68a;
      --card-shadow: 0 4px 14px rgba(217, 119, 6, 0.08);
      --card-hover-shadow: 0 10px 24px rgba(217, 119, 6, 0.16);
      --container-max: 1200px;
    }

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

    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-cream);
      color: var(--text-main);
      line-height: 1.6;
    }

    body {
      background: radial-gradient(circle at top right, #fff7d6 0%, #fffdf5 40%, #ffffff 100%);
      min-height: 100vh;
      overflow-x: hidden;
    }

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

    header {
      position: sticky;
      top: 0;
      background-color: rgba(255, 253, 245, 0.95);
      backdrop-filter: blur(8px);
      z-index: 1000;
      border-bottom: 2px solid var(--primary-yellow);
      transition: all 0.3s ease;
    }

    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }

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

    .brand-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .brand-badge {
      background-color: var(--primary-yellow);
      color: #78350f;
      font-size: 0.75rem;
      font-weight: 600;
      padding: 2px 8px;
      border-radius: 9999px;
      border: 1px solid var(--vibrant-yellow);
    }

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

    .nav-links li a {
      color: var(--text-main);
      text-decoration: none;
      font-size: 0.95rem;
      font-weight: 500;
      padding: 8px 12px;
      border-radius: 6px;
      transition: all 0.2s ease;
    }

    .nav-links li a:hover {
      background-color: var(--primary-yellow);
      color: #78350f;
    }

    .nav-action {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 20px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: 8px;
      text-decoration: none;
      transition: all 0.2s ease;
      cursor: pointer;
      border: 1px solid transparent;
    }

    .btn-primary {
      background: linear-gradient(135deg, #fcd34d 0%, #f59e0b 100%);
      color: #78350f;
      box-shadow: 0 4px 10px rgba(245, 158, 11, 0.3);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
      box-shadow: 0 6px 14px rgba(245, 158, 11, 0.4);
      transform: translateY(-1px);
    }

    .btn-secondary {
      background-color: #fff;
      border: 1px solid var(--primary-yellow);
      color: #92400e;
    }

    .btn-secondary:hover {
      background-color: var(--bg-light-tint);
    }

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

    /* Hero Section (No Image Rule Compliant) */
    .hero-section {
      padding: 70px 0 60px;
      position: relative;
    }

    .hero-layout {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }

    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 14px;
      border-radius: 9999px;
      background-color: #fef3c7;
      border: 1px solid #fde68a;
      color: #92400e;
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 20px;
    }

    .hero-tag span {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: #d97706;
      animation: pulseDot 2s infinite;
    }

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

    .hero-title {
      font-size: 2.5rem;
      line-height: 1.2;
      font-weight: 800;
      color: #1e293b;
      margin-bottom: 20px;
    }

    .hero-title em {
      font-style: normal;
      background: linear-gradient(180deg, transparent 65%, #fde047 65%);
      padding: 0 4px;
    }

    .hero-desc {
      font-size: 1.1rem;
      color: var(--text-muted);
      margin-bottom: 30px;
      line-height: 1.7;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 32px;
    }

    .hero-meta-row {
      display: flex;
      align-items: center;
      gap: 24px;
      padding-top: 20px;
      border-top: 1px dashed #e2e8f0;
    }

    .hero-meta-item {
      font-size: 0.85rem;
      color: var(--text-sub);
    }

    .hero-meta-item strong {
      color: #92400e;
      font-weight: 700;
    }

    .hero-visual-card {
      background: #ffffff;
      border: 2px solid var(--card-border);
      border-radius: 16px;
      padding: 24px;
      box-shadow: var(--card-shadow);
      position: relative;
    }

    .visual-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid #f1f5f9;
      padding-bottom: 12px;
      margin-bottom: 16px;
    }

    .visual-dots {
      display: flex;
      gap: 6px;
    }

    .visual-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background-color: #cbd5e1;
    }

    .visual-dot:nth-child(1) { background-color: #f87171; }
    .visual-dot:nth-child(2) { background-color: #fbbf24; }
    .visual-dot:nth-child(3) { background-color: #34d399; }

    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
    }

    .matrix-item {
      background: #fffdf5;
      border: 1px solid #fef08a;
      border-radius: 10px;
      padding: 14px;
      transition: all 0.2s ease;
    }

    .matrix-item:hover {
      border-color: var(--vibrant-yellow);
      background-color: #ffffff;
      transform: translateY(-2px);
    }

    .matrix-label {
      font-size: 0.75rem;
      color: #92400e;
      font-weight: 600;
      margin-bottom: 4px;
    }

    .matrix-value {
      font-size: 1.1rem;
      font-weight: 700;
      color: #1e293b;
    }

    .matrix-sub {
      font-size: 0.75rem;
      color: #64748b;
    }

    /* Universal Section Layouts */
    section {
      padding: 50px 0;
      position: relative;
    }

    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 40px;
    }

    .section-eyebrow {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 700;
      color: #b45309;
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 8px;
    }

    .section-title {
      font-size: 2rem;
      font-weight: 800;
      color: #0f172a;
      margin-bottom: 12px;
    }

    .section-desc {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* Metrics Bar */
    .metrics-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: -20px;
      margin-bottom: 40px;
    }

    .metric-card {
      background: #ffffff;
      border: 1px solid #fde68a;
      border-radius: 12px;
      padding: 20px;
      text-align: center;
      box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    }

    .metric-num {
      font-size: 2.2rem;
      font-weight: 800;
      color: #d97706;
      line-height: 1;
      margin-bottom: 6px;
    }

    .metric-txt {
      font-size: 0.9rem;
      font-weight: 600;
      color: #334155;
    }

    /* Service Cards (Grid) */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
      gap: 20px;
    }

    .service-card {
      background: #ffffff;
      border: 1px solid #fef08a;
      border-radius: 12px;
      padding: 24px;
      box-shadow: var(--card-shadow);
      transition: all 0.2s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .service-card:hover {
      border-color: var(--vibrant-yellow);
      box-shadow: var(--card-hover-shadow);
      transform: translateY(-3px);
    }

    .service-icon {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: #fef3c7;
      color: #b45309;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.1rem;
      margin-bottom: 16px;
      border: 1px solid #fde68a;
    }

    .service-name {
      font-size: 1.15rem;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 8px;
    }

    .service-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.5;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .service-tag {
      font-size: 0.75rem;
      padding: 3px 8px;
      border-radius: 4px;
      background: #fefce8;
      color: #854d0e;
      align-self: flex-start;
      border: 1px solid #fef08a;
    }

    /* Tag Cloud of Supported Models */
    .model-badge-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      justify-content: center;
      margin-top: 24px;
    }

    .model-chip {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      padding: 6px 14px;
      border-radius: 9999px;
      font-size: 0.85rem;
      font-weight: 600;
      color: #334155;
      box-shadow: 0 1px 3px rgba(0,0,0,0.05);
      transition: all 0.2s ease;
    }

    .model-chip:hover {
      border-color: var(--vibrant-yellow);
      background-color: #fefce8;
      color: #92400e;
    }

    /* Evaluation Section */
    .rating-container {
      background: linear-gradient(135deg, #fffbeb 0%, #fff 100%);
      border: 2px solid var(--primary-yellow);
      border-radius: 16px;
      padding: 32px;
      box-shadow: var(--card-shadow);
      margin-bottom: 30px;
    }

    .rating-banner {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      padding-bottom: 24px;
      border-bottom: 1px dashed #fde68a;
      margin-bottom: 24px;
    }

    .rating-score {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .score-big {
      font-size: 3.5rem;
      font-weight: 900;
      color: #b45309;
      line-height: 1;
    }

    .score-detail {
      display: flex;
      flex-direction: column;
    }

    .score-stars {
      color: #f59e0b;
      font-size: 1.3rem;
      letter-spacing: 2px;
    }

    .score-meta {
      font-size: 0.85rem;
      color: #78350f;
      font-weight: 600;
    }

    .eval-table-wrapper {
      overflow-x: auto;
    }

    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 600px;
    }

    .eval-table th, .eval-table td {
      padding: 14px 16px;
      border-bottom: 1px solid #fef3c7;
      font-size: 0.95rem;
    }

    .eval-table th {
      background: #fef3c7;
      color: #92400e;
      font-weight: 700;
    }

    .eval-table tr:hover td {
      background: #fffdf5;
    }

    .badge-check {
      display: inline-flex;
      align-items: center;
      color: #059669;
      font-weight: 700;
    }

    .badge-cross {
      color: #94a3b8;
    }

    /* Material Showcase Grid */
    .material-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 20px;
      margin-top: 30px;
    }

    .material-box {
      background: #ffffff;
      border: 1px solid #fde68a;
      border-radius: 12px;
      overflow: hidden;
      box-shadow: var(--card-shadow);
      display: flex;
      flex-direction: column;
    }

    .material-box .img-holder {
      width: 100%;
      aspect-ratio: 16 / 9;
      background: #f8fafc;
      overflow: hidden;
    }

    .material-box .img-holder.square {
      aspect-ratio: 1 / 1;
    }

    .material-box img {
      width: 100%;
      height: 100%;
      object-fit: contain;
      display: block;
    }

    .material-caption {
      padding: 16px;
      font-size: 0.95rem;
      font-weight: 600;
      color: #334155;
      text-align: center;
    }

    /* Articles Section */
    .articles-block {
      background: #ffffff;
      border: 1px solid #fde68a;
      border-radius: 12px;
      padding: 24px;
      margin-top: 24px;
    }

    .article-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 12px;
    }

    .article-links a {
      color: #92400e;
      background: #fefce8;
      border: 1px solid #fef08a;
      padding: 6px 14px;
      border-radius: 6px;
      font-size: 0.85rem;
      text-decoration: none;
      transition: all 0.2s;
    }

    .article-links a:hover {
      background: #fef08a;
      border-color: #f59e0b;
    }

    /* FAQ Accordion */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid #fde68a;
      border-radius: 10px;
      overflow: hidden;
      transition: all 0.2s ease;
    }

    .faq-item.active {
      border-color: #f59e0b;
      box-shadow: 0 4px 12px rgba(245, 158, 11, 0.1);
    }

    .faq-trigger {
      width: 100%;
      padding: 16px 20px;
      text-align: left;
      background: none;
      border: none;
      font-size: 1rem;
      font-weight: 700;
      color: #1e293b;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }

    .faq-trigger:hover {
      background-color: #fffdf5;
    }

    .faq-symbol {
      font-size: 1.2rem;
      color: #d97706;
      transition: transform 0.2s;
    }

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

    .faq-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.25s ease-out;
      background-color: #fffdf5;
    }

    .faq-inner {
      padding: 16px 20px;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.6;
      border-top: 1px solid #fef3c7;
    }

    /* Testimonials */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 20px;
    }

    .review-card {
      background: #ffffff;
      border: 1px solid #fef08a;
      border-radius: 12px;
      padding: 24px;
      box-shadow: var(--card-shadow);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 12px;
    }

    .avatar-fake {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #fde68a;
      color: #92400e;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1rem;
    }

    .review-author {
      font-size: 1rem;
      font-weight: 700;
      color: #1e293b;
    }

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

    .review-stars {
      color: #f59e0b;
      font-size: 0.9rem;
      margin-bottom: 8px;
    }

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

    /* Form Section */
    .form-wrapper {
      background: #ffffff;
      border: 2px solid var(--primary-yellow);
      border-radius: 16px;
      padding: 36px;
      max-width: 800px;
      margin: 0 auto;
      box-shadow: var(--card-shadow);
    }

    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .form-col-full {
      grid-column: 1 / -1;
    }

    .form-group label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      color: #334155;
      margin-bottom: 6px;
    }

    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 10px 14px;
      border: 1px solid #cbd5e1;
      border-radius: 8px;
      font-size: 0.95rem;
      color: #1e293b;
      background: #fffdf5;
      outline: none;
      transition: all 0.2s ease;
    }

    .form-input:focus, .form-select:focus, .form-textarea:focus {
      border-color: #f59e0b;
      box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.2);
    }

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

    /* Footer Styles */
    footer {
      background-color: #fffbeb;
      border-top: 2px solid var(--primary-yellow);
      padding: 50px 0 20px;
      margin-top: 40px;
      color: var(--text-main);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 30px;
      margin-bottom: 40px;
    }

    .footer-col h4 {
      font-size: 1rem;
      font-weight: 700;
      color: #78350f;
      margin-bottom: 16px;
    }

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

    .footer-links a {
      color: var(--text-muted);
      text-decoration: none;
      font-size: 0.9rem;
      transition: color 0.2s;
    }

    .footer-links a:hover {
      color: #b45309;
    }

    .contact-item {
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .qr-container {
      margin-top: 12px;
      width: 100px;
      height: 100px;
      border: 1px solid #fde68a;
      border-radius: 8px;
      overflow: hidden;
      background: #fff;
    }

    .qr-container img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .friend-links-wrap {
      border-top: 1px solid #fde68a;
      padding-top: 20px;
      margin-bottom: 24px;
    }

    .friend-links-title {
      font-size: 0.85rem;
      font-weight: 700;
      color: #78350f;
      margin-bottom: 10px;
    }

    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
    }

    .friend-links-list a {
      font-size: 0.85rem;
      color: var(--text-sub);
      text-decoration: none;
      transition: color 0.2s;
    }

    .friend-links-list a:hover {
      color: #d97706;
    }

    .footer-bottom {
      border-top: 1px dashed #fde68a;
      padding-top: 16px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 0.85rem;
      color: var(--text-sub);
    }

    /* Floating Widget */
    .floating-widget {
      position: fixed;
      bottom: 30px;
      right: 24px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 990;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #f59e0b;
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 14px rgba(217, 119, 6, 0.3);
      cursor: pointer;
      text-decoration: none;
      font-size: 1.2rem;
      transition: transform 0.2s ease;
      border: 2px solid #ffffff;
    }

    .float-btn:hover {
      transform: scale(1.1);
      background: #d97706;
    }

    /* Responsive Breakdown */
    @media (max-width: 992px) {
      .hero-layout {
        grid-template-columns: 1fr;
      }
      .metrics-bar {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #fffdf5;
        border-bottom: 2px solid var(--primary-yellow);
        flex-direction: column;
        padding: 16px 20px;
        box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li a {
        width: 100%;
        display: block;
      }
      .nav-action {
        display: none;
      }
      .form-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
      }
    }