:root {
      --candy-pink: #ff5b84;
      --candy-purple: #7952ff;
      --candy-cyan: #00d2d3;
      --candy-yellow: #ff9f43;
      --candy-mint: #10ac84;
      --bg-base: #fcf9fe;
      --card-bg: #ffffff;
      --text-main: #222f3e;
      --text-muted: #576574;
      --border-color: #f1e7f5;
      --radius-sm: 8px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --radius-full: 9999px;
      --shadow-sm: 0 4px 12px rgba(121, 82, 255, 0.06);
      --shadow-md: 0 10px 25px rgba(121, 82, 255, 0.1);
      --shadow-hover: 0 16px 32px rgba(121, 82, 255, 0.16);
      --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-tap-highlight-color: transparent;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      background: var(--bg-base);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      background-image: 
        radial-gradient(circle at 10% 20%, rgba(255, 91, 132, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(121, 82, 255, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(0, 210, 211, 0.04) 0%, transparent 60%);
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    ul, ol {
      list-style: none;
    }
    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 20px;
    }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      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-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-wrap .ai-page-logo {
      height: 38px;
      width: auto;
      display: block;
    }
    .brand-name {
      font-size: 1.25rem;
      font-weight: 800;
      background: linear-gradient(135deg, var(--candy-purple), var(--candy-pink));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
    }
    .nav-item {
      display: inline-block;
      padding: 8px 14px;
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-main);
      border-radius: var(--radius-full);
      transition: var(--transition);
    }
    .nav-item:hover {
      color: var(--candy-purple);
      background: rgba(121, 82, 255, 0.08);
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn-candy-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      background: linear-gradient(135deg, var(--candy-purple), var(--candy-pink));
      color: #fff;
      font-size: 0.95rem;
      font-weight: 700;
      border-radius: var(--radius-full);
      box-shadow: 0 4px 14px rgba(255, 91, 132, 0.3);
      transition: var(--transition);
      border: none;
      cursor: pointer;
    }
    .btn-candy-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(255, 91, 132, 0.4);
      color: #fff;
    }
    .btn-candy-sub {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 20px;
      background: #fff;
      color: var(--candy-purple);
      border: 1.5px solid var(--candy-purple);
      font-size: 0.95rem;
      font-weight: 700;
      border-radius: var(--radius-full);
      transition: var(--transition);
      cursor: pointer;
    }
    .btn-candy-sub:hover {
      background: rgba(121, 82, 255, 0.05);
      transform: translateY(-2px);
    }
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--text-main);
      cursor: pointer;
    }
    .section-wrap {
      padding: 64px 0;
      position: relative;
    }
    .section-head {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 48px;
    }
    .section-badge {
      display: inline-block;
      padding: 4px 14px;
      background: rgba(121, 82, 255, 0.1);
      color: var(--candy-purple);
      font-size: 0.85rem;
      font-weight: 700;
      border-radius: var(--radius-full);
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
      letter-spacing: -0.5px;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
    }
    .hero-section {
      padding: 80px 0 60px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }
    .hero-h1 {
      font-size: 2.8rem;
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -1px;
      color: var(--text-main);
    }
    .hero-h1 span {
      background: linear-gradient(135deg, var(--candy-pink), var(--candy-purple), var(--candy-cyan));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-lead {
      font-size: 1.2rem;
      color: var(--text-muted);
      max-width: 760px;
      margin: 0 auto 36px;
    }
    .hero-actions {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 16px;
      margin-bottom: 48px;
      flex-wrap: wrap;
    }
    .hero-tags {
      display: flex;
      justify-content: center;
      gap: 12px;
      flex-wrap: wrap;
    }
    .hero-tag-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 6px 16px;
      border-radius: var(--radius-full);
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-muted);
      box-shadow: var(--shadow-sm);
    }
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 40px;
    }
    .stat-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .stat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(121, 82, 255, 0.3);
    }
    .stat-number {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--candy-purple);
      margin-bottom: 4px;
    }
    .stat-label {
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-muted);
    }
    .card-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .candy-card {
      background: var(--card-bg);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .candy-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(255, 91, 132, 0.3);
    }
    .card-badge {
      display: inline-block;
      align-self: flex-start;
      padding: 3px 10px;
      font-size: 0.75rem;
      font-weight: 700;
      border-radius: var(--radius-sm);
      margin-bottom: 16px;
      background: rgba(0, 210, 211, 0.15);
      color: #008f91;
    }
    .card-title {
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .card-desc {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
    }
    .chips-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 24px;
    }
    .chip-item {
      background: #fff;
      border: 1px solid #ebd9f7;
      padding: 6px 14px;
      border-radius: var(--radius-full);
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--candy-purple);
      box-shadow: 0 2px 6px rgba(121, 82, 255, 0.05);
      transition: var(--transition);
    }
    .chip-item:hover {
      background: var(--candy-purple);
      color: #fff;
      border-color: var(--candy-purple);
    }
    .process-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .step-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      text-align: center;
      position: relative;
    }
    .step-num {
      width: 44px;
      height: 44px;
      line-height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--candy-yellow), var(--candy-pink));
      color: #fff;
      font-weight: 800;
      margin: 0 auto 16px;
      font-size: 1.1rem;
    }
    .step-title {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .step-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
    }
    .showcase-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .showcase-card {
      background: var(--card-bg);
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .showcase-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .showcase-img-wrap {
      width: 100%;
      aspect-ratio: 16 / 9;
      background: #f1f2f6;
      overflow: hidden;
    }
    .showcase-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }
    .showcase-content {
      padding: 20px;
    }
    .showcase-title {
      font-size: 1.1rem;
      font-weight: 800;
      margin-bottom: 8px;
      color: var(--text-main);
    }
    .showcase-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
    }
    .compare-container {
      background: var(--card-bg);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-md);
    }
    .score-banner {
      background: linear-gradient(135deg, var(--candy-purple), var(--candy-pink));
      color: #fff;
      padding: 32px 24px;
      display: flex;
      align-items: center;
      justify-content: space-around;
      flex-wrap: wrap;
      gap: 20px;
      text-align: center;
    }
    .score-item-title {
      font-size: 0.95rem;
      opacity: 0.9;
      margin-bottom: 4px;
    }
    .score-item-val {
      font-size: 2.4rem;
      font-weight: 900;
      letter-spacing: -0.5px;
    }
    .compare-table-wrap {
      overflow-x: auto;
      padding: 16px;
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.95rem;
    }
    .compare-table th, .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #f1e7f5;
    }
    .compare-table th {
      background: #faf6fd;
      color: var(--text-main);
      font-weight: 700;
    }
    .compare-table tr:last-child td {
      border-bottom: none;
    }
    .tag-strong {
      color: var(--candy-purple);
      font-weight: 700;
    }
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .review-card {
      background: var(--card-bg);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-text {
      font-size: 0.95rem;
      color: var(--text-main);
      margin-bottom: 16px;
      line-height: 1.6;
    }
    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f7effb;
      padding-top: 12px;
    }
    .user-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--candy-cyan), var(--candy-purple));
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1rem;
    }
    .user-info-name {
      font-size: 0.9rem;
      font-weight: 700;
    }
    .user-info-role {
      font-size: 0.8rem;
      color: var(--text-muted);
    }
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .faq-item {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .faq-question {
      padding: 18px 24px;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-question::after {
      content: "+";
      font-size: 1.4rem;
      color: var(--candy-purple);
      transition: var(--transition);
    }
    .faq-item.active .faq-question::after {
      transform: rotate(45deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background: #faf6fd;
    }
    .faq-answer-inner {
      padding: 16px 24px;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.6;
      border-top: 1px solid var(--border-color);
    }
    .contact-form-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-md);
      max-width: 760px;
      margin: 0 auto;
    }
    .form-group {
      margin-bottom: 20px;
    }
    .form-label {
      display: block;
      font-size: 0.95rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }
    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1.5px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      outline: none;
      transition: var(--transition);
      background: #fff;
    }
    .form-control:focus {
      border-color: var(--candy-purple);
      box-shadow: 0 0 0 3px rgba(121, 82, 255, 0.15);
    }
    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }
    .article-links-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px;
      margin-top: 24px;
    }
    .article-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 12px;
    }
    .article-link-tag {
      background: rgba(121, 82, 255, 0.05);
      border: 1px solid #ebd9f7;
      padding: 6px 12px;
      border-radius: var(--radius-sm);
      font-size: 0.85rem;
      color: var(--candy-purple);
    }
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 48px 0 24px;
      color: var(--text-muted);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 32px;
      margin-bottom: 36px;
    }
    .footer-brand h4 {
      font-size: 1.3rem;
      color: var(--candy-purple);
      font-weight: 800;
      margin-bottom: 12px;
    }
    .footer-brand p {
      font-size: 0.9rem;
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .footer-col h5 {
      font-size: 1rem;
      color: var(--text-main);
      font-weight: 700;
      margin-bottom: 14px;
    }
    .footer-links li {
      margin-bottom: 8px;
    }
    .footer-links a {
      font-size: 0.9rem;
      color: var(--text-muted);
      transition: var(--transition);
    }
    .footer-links a:hover {
      color: var(--candy-purple);
    }
    .qr-box {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      gap: 8px;
    }
    .qr-box img {
      width: 100px;
      height: 100px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
      display: block;
    }
    .footer-bottom {
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.85rem;
    }
    .friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
    }
    .friend-links a {
      color: var(--text-muted);
      transition: var(--transition);
    }
    .friend-links a:hover {
      color: var(--candy-purple);
    }
    .float-panel {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--candy-purple);
      cursor: pointer;
      font-size: 1.2rem;
      font-weight: 700;
      transition: var(--transition);
      position: relative;
    }
    .float-btn:hover {
      background: var(--candy-purple);
      color: #ffffff;
      transform: translateY(-2px);
    }
    .float-qr-pop {
      position: absolute;
      right: 60px;
      bottom: 0;
      background: #fff;
      padding: 12px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-hover);
      border: 1px solid var(--border-color);
      display: none;
      flex-direction: column;
      align-items: center;
      width: 130px;
    }
    .float-qr-pop img {
      width: 100px;
      height: 100px;
      margin-bottom: 6px;
    }
    .float-qr-pop span {
      font-size: 0.75rem;
      color: var(--text-main);
    }
    .float-btn:hover .float-qr-pop {
      display: flex;
    }
    @media (max-width: 992px) {
      .card-grid-3, .showcase-grid, .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .stats-grid, .process-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 768px) {
      .menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 16px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-item {
        width: 100%;
        text-align: center;
        padding: 10px;
      }
      .hero-h1 {
        font-size: 2rem;
      }
      .card-grid-3, .showcase-grid, .reviews-grid, .stats-grid, .process-steps {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
      .contact-form-card {
        padding: 24px 16px;
      }
    }