/* CSS Standard & Palette reset for Vibrant Magenta Style (桃红艳丽风) */
    :root {
      --primary: #d81b60;
      --primary-hover: #c2185b;
      --primary-light: #fce4ec;
      --primary-soft: #fff0f5;
      --secondary: #8e24aa;
      --secondary-hover: #7b1fa2;
      --dark: #2a1625;
      --text-main: #332230;
      --text-muted: #665261;
      --bg-page: #fdf8fa;
      --bg-card: #ffffff;
      --border-color: #f3d5e2;
      --shadow-sm: 0 4px 12px rgba(216, 27, 96, 0.06);
      --shadow-md: 0 8px 24px rgba(216, 27, 96, 0.12);
      --shadow-lg: 0 16px 36px rgba(216, 27, 96, 0.16);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
    }

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

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

    body {
      background-color: var(--bg-page);
      color: var(--text-main);
      overflow-x: hidden;
    }

    a {
      color: var(--primary);
      text-decoration: none;
      transition: all 0.25s ease;
    }

    a:hover {
      color: var(--primary-hover);
    }

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

    /* Header & Navigation */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

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

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
    }

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

    .brand-name {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.5px;
    }

    /* Requirement: .nav-links gap must be 0 */
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }

    .nav-links li {
      position: relative;
    }

    .nav-links li a,
    .ai-page-home-link {
      display: inline-block;
      padding: 8px 12px;
      font-size: 0.92rem;
      font-weight: 500;
      color: var(--text-main);
      border-radius: var(--radius-sm);
      white-space: nowrap;
    }

    .nav-links li a:hover,
    .ai-page-home-link:hover {
      color: var(--primary);
      background-color: var(--primary-soft);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: var(--radius-md);
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.25s ease;
      white-space: nowrap;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
      color: #ffffff !important;
      box-shadow: 0 4px 14px rgba(216, 27, 96, 0.3);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(216, 27, 96, 0.4);
    }

    .btn-outline {
      background: #ffffff;
      border-color: var(--primary);
      color: var(--primary) !important;
    }

    .btn-outline:hover {
      background: var(--primary-soft);
      transform: translateY(-2px);
    }

    .nav-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--dark);
      cursor: pointer;
    }

    /* Hero Section (No Images as required) */
    .hero-section {
      padding: 80px 0 60px;
      background: radial-gradient(circle at 10% 20%, #ffe4ec 0%, #fdf8fa 60%, #f3e5f5 100%);
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid var(--border-color);
    }

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

    .hero-badge {
      display: inline-block;
      padding: 6px 16px;
      background: var(--primary-light);
      color: var(--primary);
      font-size: 0.85rem;
      font-weight: 700;
      border-radius: 50px;
      margin-bottom: 20px;
      border: 1px solid rgba(216, 27, 96, 0.2);
    }

    .hero-title {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--dark);
      line-height: 1.3;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-subtitle {
      font-size: 1.15rem;
      color: var(--text-muted);
      max-width: 800px;
      margin: 0 auto 36px;
      line-height: 1.7;
    }

    .hero-cta-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 40px;
    }

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 50px;
    }

    .stat-card {
      background: #ffffff;
      padding: 22px 16px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-color);
      text-align: center;
      transition: transform 0.3s ease;
    }

    .stat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .stat-value {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 4px;
    }

    .stat-label {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* Section Component Defaults */
    .page-section {
      padding: 75px 0;
      position: relative;
    }

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

    .section-header {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 50px;
    }

    .section-subtitle {
      color: var(--primary);
      font-size: 0.88rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 8px;
      display: block;
    }

    .section-title {
      font-size: 1.9rem;
      color: var(--dark);
      font-weight: 800;
      margin-bottom: 14px;
    }

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

    /* Cards Grid */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }

    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 22px;
    }

    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
    }

    .feature-card {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      padding: 28px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      height: 100%;
    }

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

    .feature-icon {
      width: 48px;
      height: 48px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      font-weight: bold;
      margin-bottom: 20px;
    }

    .feature-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 12px;
    }

    .feature-desc {
      font-size: 0.93rem;
      color: var(--text-muted);
      flex-grow: 1;
      margin-bottom: 16px;
    }

    .feature-tag {
      display: inline-block;
      font-size: 0.78rem;
      padding: 4px 10px;
      background: var(--primary-soft);
      color: var(--primary);
      border-radius: 4px;
      font-weight: 600;
      align-self: flex-start;
    }

    /* Platform Models Cloud */
    .models-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 24px;
    }

    .model-chip {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 8px 16px;
      border-radius: 30px;
      font-size: 0.88rem;
      color: var(--text-main);
      font-weight: 600;
      box-shadow: 0 2px 6px rgba(0,0,0,0.03);
      transition: all 0.25s ease;
    }

    .model-chip:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: var(--primary-soft);
      transform: scale(1.05);
    }

    /* Comparison Section (Requirement: 5 stars, 9.9 score) */
    .score-banner {
      background: linear-gradient(135deg, var(--dark) 0%, #4a1534 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 36px;
      margin-bottom: 40px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      box-shadow: var(--shadow-md);
    }

    .score-info h3 {
      font-size: 1.6rem;
      margin-bottom: 8px;
      color: #ffffff;
    }

    .score-info p {
      color: #f3c2db;
      font-size: 0.95rem;
    }

    .score-badge-box {
      text-align: right;
    }

    .stars-text {
      font-size: 1.8rem;
      color: #ffca28;
      letter-spacing: 2px;
      margin-bottom: 4px;
    }

    .score-num {
      font-size: 2.5rem;
      font-weight: 900;
      color: #ffffff;
    }

    .score-max {
      font-size: 1rem;
      color: #f3c2db;
    }

    .compare-table-wrapper {
      overflow-x: auto;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      background: #ffffff;
    }

    .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 #f3e5ec;
      font-size: 0.94rem;
    }

    .compare-table th {
      background: #fcf2f7;
      color: var(--dark);
      font-weight: 700;
    }

    .compare-table th.highlight,
    .compare-table td.highlight {
      background: #fff0f6;
      color: var(--primary);
      font-weight: 700;
    }

    .check-yes {
      color: #2e7d32;
      font-weight: bold;
    }

    .check-no {
      color: #c62828;
    }

    /* Process Timeline */
    .process-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .process-card {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      position: relative;
    }

    .process-num {
      width: 36px;
      height: 36px;
      background: var(--primary);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      margin-bottom: 14px;
    }

    .process-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 8px;
    }

    .process-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* Token Price Table */
    .token-table-wrapper {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow-x: auto;
    }

    .token-table {
      width: 100%;
      border-collapse: collapse;
      min-width: 640px;
    }

    .token-table th, .token-table td {
      padding: 14px 18px;
      border-bottom: 1px solid #f3e5ec;
      font-size: 0.92rem;
    }

    .token-table th {
      background: #fdf0f5;
      color: var(--dark);
      font-weight: 700;
    }

    /* Reviews Section */
    .review-card {
      background: #ffffff;
      padding: 26px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .review-user {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 14px;
    }

    .review-avatar {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.1rem;
    }

    .review-info h4 {
      font-size: 0.98rem;
      color: var(--dark);
    }

    .review-info span {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    .review-content {
      font-size: 0.92rem;
      color: var(--text-main);
      line-height: 1.6;
    }

    .review-stars {
      color: #ffb300;
      font-size: 0.85rem;
      margin-top: 8px;
    }

    /* FAQ Accordion */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: border-color 0.25s ease;
    }

    .faq-item.active {
      border-color: var(--primary);
    }

    .faq-question {
      padding: 20px;
      font-size: 1.02rem;
      font-weight: 700;
      color: var(--dark);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      user-select: none;
    }

    .faq-question::after {
      content: '+';
      font-size: 1.4rem;
      color: var(--primary);
      font-weight: 400;
      transition: transform 0.25s ease;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #fffcfd;
    }

    .faq-item.active .faq-answer {
      max-height: 250px;
      padding: 0 20px 20px;
      border-top: 1px dashed var(--border-color);
    }

    .faq-answer p {
      font-size: 0.93rem;
      color: var(--text-muted);
      padding-top: 14px;
    }

    /* Forms */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      padding: 40px;
    }

    .contact-form {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .form-group label {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--dark);
    }

    .form-control {
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      outline: none;
      transition: border-color 0.25s ease;
      background: #fffcfd;
    }

    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(216, 27, 96, 0.1);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 110px;
    }

    .contact-info-panel {
      background: var(--primary-soft);
      border-radius: var(--radius-md);
      padding: 30px;
      border: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .info-item {
      margin-bottom: 20px;
    }

    .info-item h4 {
      font-size: 0.95rem;
      color: var(--dark);
      margin-bottom: 4px;
    }

    .info-item p {
      font-size: 0.92rem;
      color: var(--text-muted);
    }

    .qr-container {
      margin-top: 15px;
      text-align: center;
      background: #ffffff;
      padding: 16px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      display: inline-block;
      max-width: 180px;
    }

    .qr-container img {
      max-width: 100%;
      height: auto;
      border-radius: 6px;
    }

    /* Media Library Section Displays */
    .media-showcase-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
      margin-top: 30px;
    }

    .media-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .media-card-body {
      padding: 18px;
    }

    .media-card-title {
      font-weight: 700;
      color: var(--dark);
      font-size: 1rem;
      margin-bottom: 6px;
    }

    .media-card-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* Articles & Links Component */
    .article-links-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .article-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 20px;
      border-radius: var(--radius-md);
      transition: border-color 0.25s ease;
    }

    .article-card:hover {
      border-color: var(--primary);
    }

    .article-card h4 {
      font-size: 0.98rem;
      color: var(--dark);
      margin-bottom: 8px;
    }

    .article-card a {
      font-size: 0.86rem;
      word-break: break-all;
    }

    /* Footer Rules: High Contrast Light/Dark Safety */
    .site-footer {
      background-color: var(--dark);
      color: #f3d5e2;
      padding: 60px 0 30px;
      border-top: 1px solid #4a1534;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 36px;
      margin-bottom: 40px;
    }

    .footer-col h4 {
      color: #ffffff;
      font-size: 1.05rem;
      margin-bottom: 18px;
      font-weight: 700;
    }

    .footer-col p, .footer-col li {
      font-size: 0.88rem;
      color: #d6b5c7;
      margin-bottom: 10px;
      list-style: none;
    }

    .footer-col a {
      color: #f3c2db;
    }

    .footer-col a:hover {
      color: #ffffff;
      text-decoration: underline;
    }

    .friendly-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .friendly-links a {
      display: inline-block;
      padding: 4px 10px;
      background: rgba(255,255,255,0.08);
      border-radius: 4px;
      font-size: 0.82rem;
      color: #f3c2db !important;
    }

    .friendly-links a:hover {
      background: var(--primary);
      color: #ffffff !important;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 24px;
      text-align: center;
      font-size: 0.85rem;
      color: #b592a6;
    }

    /* Floating Widget */
    .floating-widget {
      position: fixed;
      bottom: 24px;
      right: 24px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .float-btn {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: var(--primary);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-lg);
      cursor: pointer;
      border: none;
      font-size: 1.2rem;
      transition: transform 0.25s ease;
    }

    .float-btn:hover {
      transform: scale(1.1);
      background: var(--primary-hover);
    }

    /* Responsive Breakdown */
    @media (max-width: 992px) {
      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-4, .process-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .contact-wrapper {
        grid-template-columns: 1fr;
      }
      .media-showcase-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-toggle {
        display: block;
      }
      .hero-title {
        font-size: 1.6rem;
      }
      .grid-3, .grid-2, .article-links-grid {
        grid-template-columns: 1fr;
      }
      .score-banner {
        flex-direction: column;
        text-align: center;
        gap: 20px;
      }
      .score-badge-box {
        text-align: center;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }