:root {
      --primary: #e11d48;
      --primary-hover: #be123c;
      --primary-light: #fff1f2;
      --primary-border: #fecdd3;
      --accent: #db2777;
      --accent-gradient: linear-gradient(135deg, #e11d48 0%, #be185d 100%);
      --hero-bg: linear-gradient(145deg, #fff5f7 0%, #ffe4e6 50%, #fce7f3 100%);
      --bg-page: #fdfafb;
      --bg-card: #ffffff;
      --text-main: #1f2937;
      --text-muted: #4b5563;
      --text-light: #6b7280;
      --border-color: #f3e8eb;
      --shadow-sm: 0 2px 8px rgba(225, 29, 72, 0.06);
      --shadow-md: 0 8px 24px rgba(225, 29, 72, 0.08);
      --shadow-lg: 0 16px 36px rgba(225, 29, 72, 0.12);
      --radius: 12px;
      --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", Arial, sans-serif;
    }
    body {
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.3s ease;
    }
    ul, ol {
      list-style: none;
    }
    .container {
      width: 100%;
      max-width: var(--container-max);
      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(10px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 10px rgba(0,0,0,0.03);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .logo-box {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
    }
    .logo-box img {
      height: 40px;
      width: auto;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
    }
    .nav-links li a {
      display: block;
      padding: 10px 14px;
      font-size: 15px;
      font-weight: 500;
      color: var(--text-main);
      border-radius: 6px;
      transition: all 0.2s ease;
    }
    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary);
      background: var(--primary-light);
    }
    .nav-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 20px;
      background: var(--accent-gradient);
      color: #fff !important;
      font-weight: 600;
      border-radius: 30px;
      box-shadow: 0 4px 14px rgba(225, 29, 72, 0.3);
      margin-left: 8px;
    }
    .nav-btn:hover {
      opacity: 0.95;
      transform: translateY(-1px);
    }
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
      color: var(--text-main);
    }
    .menu-toggle svg {
      width: 28px;
      height: 28px;
    }
    .section-wrap {
      padding: 80px 0;
      position: relative;
    }
    .section-title-box {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 50px;
    }
    .section-tag {
      display: inline-block;
      padding: 4px 16px;
      background: var(--primary-light);
      border: 1px solid var(--primary-border);
      color: var(--primary);
      font-size: 13px;
      font-weight: 600;
      border-radius: 20px;
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 1px;
    }
    .section-title {
      font-size: 32px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 16px;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
    }
    .hero-section {
      background: var(--hero-bg);
      padding: 90px 0 80px;
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid var(--border-color);
    }
    .hero-content {
      text-align: center;
      max-width: 860px;
      margin: 0 auto;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: rgba(255, 255, 255, 0.9);
      border: 1px solid var(--primary-border);
      border-radius: 30px;
      color: var(--primary);
      font-weight: 600;
      font-size: 14px;
      margin-bottom: 24px;
      box-shadow: var(--shadow-sm);
    }
    .hero-title {
      font-size: 42px;
      font-weight: 800;
      color: #111827;
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }
    .hero-title span {
      color: var(--primary);
      position: relative;
    }
    .hero-p {
      font-size: 18px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 36px;
    }
    .hero-actions {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }
    .btn-main-hero {
      padding: 14px 32px;
      font-size: 16px;
      font-weight: 700;
      background: var(--accent-gradient);
      color: #fff;
      border-radius: 30px;
      box-shadow: 0 8px 24px rgba(225, 29, 72, 0.35);
      transition: all 0.3s;
    }
    .btn-main-hero:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 30px rgba(225, 29, 72, 0.45);
    }
    .btn-outline-hero {
      padding: 14px 30px;
      font-size: 16px;
      font-weight: 600;
      background: #ffffff;
      color: var(--primary);
      border: 1px solid var(--primary-border);
      border-radius: 30px;
      box-shadow: var(--shadow-sm);
    }
    .btn-outline-hero:hover {
      background: var(--primary-light);
      border-color: var(--primary);
    }
    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 20px;
    }
    .stat-card {
      background: rgba(255, 255, 255, 0.9);
      border: 1px solid var(--border-color);
      padding: 24px 16px;
      border-radius: var(--radius);
      box-shadow: var(--shadow-sm);
      text-align: center;
    }
    .stat-card h3 {
      font-size: 30px;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 4px;
    }
    .stat-card p {
      font-size: 14px;
      color: var(--text-muted);
      font-weight: 500;
    }
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .card-base {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }
    .card-base:hover {
      border-color: var(--primary-border);
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }
    .card-icon {
      width: 48px;
      height: 48px;
      border-radius: 10px;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 18px;
      font-size: 22px;
      font-weight: bold;
    }
    .card-title {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }
    .card-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }
    .model-tags-container {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 24px;
      justify-content: center;
    }
    .model-tag {
      padding: 6px 14px;
      background: #ffffff;
      border: 1px solid #fce7f3;
      border-radius: 20px;
      font-size: 13px;
      font-weight: 500;
      color: #831843;
      box-shadow: 0 1px 4px rgba(0,0,0,0.02);
    }
    .score-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 20px;
      background: #fff1f2;
      border: 1px solid var(--primary-border);
      border-radius: 30px;
      color: var(--primary);
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 24px;
    }
    .table-container {
      overflow-x: auto;
      background: #fff;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .custom-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }
    .custom-table th {
      background: #fff5f7;
      color: var(--primary);
      padding: 16px 20px;
      font-weight: 700;
      border-bottom: 1px solid var(--border-color);
    }
    .custom-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      color: var(--text-muted);
    }
    .custom-table tr:last-child td {
      border-bottom: none;
    }
    .custom-table tr:hover {
      background: #fffbfa;
    }
    .highlight-cell {
      font-weight: 700;
      color: var(--primary);
    }
    .workflow-step {
      position: relative;
      padding: 24px;
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      box-shadow: var(--shadow-sm);
      text-align: center;
    }
    .step-number {
      width: 36px;
      height: 36px;
      line-height: 36px;
      background: var(--accent-gradient);
      color: #fff;
      font-weight: 700;
      border-radius: 50%;
      margin: 0 auto 16px;
    }
    .review-card {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }
    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 12px;
    }
    .avatar-placeholder {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 16px;
      border: 1px solid var(--primary-border);
    }
    .user-info h4 {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
    }
    .user-info p {
      font-size: 12px;
      color: var(--text-light);
    }
    .stars {
      color: #f59e0b;
      font-size: 13px;
      margin-bottom: 8px;
    }
    .review-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }
    .faq-item {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      margin-bottom: 12px;
      overflow: hidden;
      transition: all 0.2s ease;
    }
    .faq-question {
      padding: 18px 24px;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-question:hover {
      color: var(--primary);
    }
    .faq-icon {
      font-size: 20px;
      font-weight: bold;
      color: var(--primary);
      transition: transform 0.2s ease;
    }
    .faq-answer {
      display: none;
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      border-top: 1px solid #fdf2f4;
    }
    .faq-item.open .faq-answer {
      display: block;
    }
    .faq-item.open .faq-icon {
      transform: rotate(45deg);
    }
    .img-showcase-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
      margin-top: 30px;
    }
    .img-box {
      border-radius: var(--radius);
      overflow: hidden;
      border: 1px solid var(--border-color);
      background: #fff;
      box-shadow: var(--shadow-sm);
    }
    .img-box img {
      width: 100%;
      height: 240px;
      object-fit: cover;
      display: block;
      transition: transform 0.3s;
    }
    .img-box:hover img {
      transform: scale(1.02);
    }
    .img-caption {
      padding: 12px 16px;
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
      text-align: center;
      background: #fff;
    }
    .form-box {
      background: #fff;
      border: 1px solid var(--primary-border);
      border-radius: var(--radius);
      padding: 36px;
      box-shadow: var(--shadow-md);
    }
    .form-group {
      margin-bottom: 18px;
    }
    .form-label {
      display: block;
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid #e5e7eb;
      border-radius: 8px;
      font-size: 14px;
      color: var(--text-main);
      outline: none;
      transition: border-color 0.2s;
    }
    .form-input:focus, .form-select:focus, .form-textarea:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(225, 29, 72, 0.1);
    }
    .btn-submit {
      width: 100%;
      padding: 14px;
      background: var(--accent-gradient);
      color: #fff;
      font-size: 16px;
      font-weight: 700;
      border: none;
      border-radius: 8px;
      cursor: pointer;
      box-shadow: 0 4px 14px rgba(225, 29, 72, 0.3);
      transition: opacity 0.2s;
    }
    .btn-submit:hover {
      opacity: 0.95;
    }
    .articles-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .article-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 16px 20px;
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      transition: all 0.2s ease;
    }
    .article-item:hover {
      border-color: var(--primary-border);
      transform: translateX(4px);
    }
    .article-link {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-main);
    }
    .article-link:hover {
      color: var(--primary);
    }
    .article-tag {
      font-size: 12px;
      padding: 4px 10px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 4px;
    }
    .site-footer {
      background: #1f1619;
      color: #e5e7eb;
      padding: 60px 0 30px;
      border-top: 3px solid var(--primary);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 36px;
      margin-bottom: 40px;
    }
    .footer-col h4 {
      color: #fff;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 18px;
      position: relative;
      padding-bottom: 8px;
    }
    .footer-col h4::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: 0;
      width: 24px;
      height: 2px;
      background: var(--primary);
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links li a {
      color: #9ca3af;
      font-size: 14px;
    }
    .footer-links li a:hover {
      color: #fff;
    }
    .footer-contact-info p {
      font-size: 14px;
      color: #9ca3af;
      margin-bottom: 8px;
    }
    .footer-qr {
      text-align: center;
      background: #2a1f23;
      padding: 14px;
      border-radius: 8px;
      border: 1px solid #3d2c32;
    }
    .footer-qr img {
      width: 110px;
      height: 110px;
      display: block;
      margin: 0 auto 8px;
      border-radius: 4px;
    }
    .footer-qr span {
      font-size: 12px;
      color: #f472b6;
    }
    .footer-bottom {
      padding-top: 24px;
      border-top: 1px solid #36252b;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
      color: #9ca3af;
      gap: 16px;
    }
    .friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      align-items: center;
    }
    .friend-links a {
      color: #9ca3af;
    }
    .friend-links a:hover {
      color: #f472b6;
    }
    .float-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 99;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .float-btn {
      width: 48px;
      height: 48px;
      background: var(--accent-gradient);
      color: #fff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 14px rgba(225, 29, 72, 0.4);
      cursor: pointer;
      transition: transform 0.2s;
    }
    .float-btn:hover {
      transform: scale(1.08);
    }
    .float-btn svg {
      width: 24px;
      height: 24px;
    }
    @media (max-width: 992px) {
      .hero-stats-grid { grid-template-columns: repeat(2, 1fr); }
      .grid-3 { grid-template-columns: repeat(2, 1fr); }
      .grid-4 { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .header-inner { position: relative; }
      .menu-toggle { display: block; }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 10px 20px rgba(0,0,0,0.05);
      }
      .nav-links.active { display: flex; }
      .nav-links li { width: 100%; text-align: center; }
      .hero-title { font-size: 28px; }
      .section-title { font-size: 24px; }
      .grid-3, .grid-2, .grid-4, .img-showcase-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
      .hero-stats-grid { grid-template-columns: 1fr; }
      .footer-bottom { flex-direction: column; text-align: center; }
    }