:root {
      --bg-base: #fbfbfa;
      --bg-surface: #ffffff;
      --text-main: #1e2025;
      --text-muted: #575d69;
      --border-dark: #1e2025;
      --doodle-yellow: #ffe566;
      --doodle-cyan: #6be3d5;
      --doodle-pink: #ffa8d5;
      --doodle-violet: #d0bfff;
      --doodle-orange: #ffb86c;
      --shadow-solid: 4px 4px 0px #1e2025;
      --shadow-hover: 6px 6px 0px #1e2025;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --container-max: 1200px;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-base);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      background-image: 
        radial-gradient(circle at 12% 18%, rgba(255, 229, 102, 0.22) 0%, transparent 22%),
        radial-gradient(circle at 88% 30%, rgba(107, 227, 213, 0.22) 0%, transparent 26%),
        radial-gradient(circle at 18% 75%, rgba(255, 168, 213, 0.22) 0%, transparent 24%),
        radial-gradient(circle at 80% 88%, rgba(208, 191, 255, 0.25) 0%, transparent 28%);
      background-attachment: fixed;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.2s ease;
    }

    ul, ol {
      list-style: none;
    }

    .container {
      width: 100%;
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(251, 251, 250, 0.95);
      backdrop-filter: blur(8px);
      border-bottom: 2px solid var(--border-dark);
      padding: 12px 0;
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }

    .brand-group {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .brand-logo-box {
      width: 44px;
      height: 44px;
      display: flex;
      align-items: center;
      justify-content: center;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-sm);
      background: var(--doodle-yellow);
      box-shadow: 2px 2px 0px var(--border-dark);
      overflow: hidden;
      padding: 4px;
    }

    .brand-meta {
      display: flex;
      flex-direction: column;
    }

    .brand-name {
      font-size: 1.25rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      color: var(--text-main);
    }

    .brand-tag {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--text-muted);
      line-height: 1;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      flex-wrap: wrap;
    }

    .nav-item {
      padding: 6px 12px;
      font-size: 0.92rem;
      font-weight: 700;
      color: var(--text-main);
      border-radius: 6px;
    }

    .nav-item:hover {
      background: var(--doodle-cyan);
      box-shadow: 2px 2px 0 var(--border-dark);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .btn-doodle {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 8px 18px;
      font-size: 0.92rem;
      font-weight: 800;
      color: var(--text-main);
      background: var(--doodle-yellow);
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-sm);
      box-shadow: var(--shadow-solid);
      cursor: pointer;
      user-select: none;
      transition: transform 0.15s ease, box-shadow 0.15s ease;
      white-space: nowrap;
    }

    .btn-doodle:hover {
      transform: translate(-2px, -2px);
      box-shadow: var(--shadow-hover);
    }

    .btn-doodle:active {
      transform: translate(2px, 2px);
      box-shadow: 1px 1px 0 var(--border-dark);
    }

    .btn-primary {
      background: var(--doodle-cyan);
    }

    .btn-pink {
      background: var(--doodle-pink);
    }

    .btn-orange {
      background: var(--doodle-orange);
    }

    .btn-lg {
      padding: 12px 28px;
      font-size: 1.05rem;
    }

    .hero-section {
      padding: 60px 0 40px;
      position: relative;
    }

    .hero-card {
      background: var(--bg-surface);
      border: 3px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 48px 36px;
      box-shadow: var(--shadow-hover);
      position: relative;
      overflow: hidden;
    }

    .hero-badge-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 20px;
    }

    .hero-pill {
      display: inline-block;
      padding: 4px 14px;
      border: 2px solid var(--border-dark);
      border-radius: 30px;
      font-size: 0.85rem;
      font-weight: 800;
      background: var(--doodle-yellow);
      box-shadow: 2px 2px 0 var(--border-dark);
    }

    .hero-pill.cyan { background: var(--doodle-cyan); }
    .hero-pill.pink { background: var(--doodle-pink); }
    .hero-pill.violet { background: var(--doodle-violet); }

    .hero-title {
      font-size: clamp(1.75rem, 3.8vw, 2.75rem);
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 18px;
    }

    .hero-subtitle {
      font-size: clamp(1rem, 1.6vw, 1.2rem);
      color: var(--text-muted);
      max-width: 820px;
      line-height: 1.7;
      margin-bottom: 32px;
      font-weight: 600;
    }

    .hero-cta-group {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
      margin-bottom: 36px;
    }

    .hero-stats-row {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 16px;
      padding-top: 24px;
      border-top: 2px dashed var(--border-dark);
    }

    .stat-box {
      background: #fafaf8;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 16px 20px;
      box-shadow: 2px 2px 0 var(--border-dark);
    }

    .stat-val {
      font-size: 1.65rem;
      font-weight: 900;
      color: var(--text-main);
      display: flex;
      align-items: baseline;
      gap: 4px;
    }

    .stat-lbl {
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--text-muted);
      margin-top: 4px;
    }

    .section-block {
      padding: 50px 0;
    }

    .section-head {
      margin-bottom: 36px;
      text-align: center;
    }

    .section-eyebrow {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 800;
      padding: 4px 12px;
      background: var(--doodle-pink);
      border: 2px solid var(--border-dark);
      border-radius: 20px;
      box-shadow: 2px 2px 0 var(--border-dark);
      margin-bottom: 12px;
    }

    .section-title {
      font-size: clamp(1.5rem, 2.5vw, 2.1rem);
      font-weight: 900;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .section-desc {
      font-size: 1rem;
      color: var(--text-muted);
      max-width: 680px;
      margin: 0 auto;
      font-weight: 600;
    }

    .grid-4 {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 20px;
    }

    .grid-3 {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 22px;
    }

    .grid-2 {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 24px;
    }

    .card-doodle {
      background: var(--bg-surface);
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-solid);
      display: flex;
      flex-direction: column;
      height: 100%;
      position: relative;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

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

    .card-tag {
      align-self: flex-start;
      font-size: 0.78rem;
      font-weight: 800;
      padding: 2px 8px;
      border: 1.5px solid var(--border-dark);
      border-radius: 6px;
      margin-bottom: 12px;
    }

    .card-title {
      font-size: 1.2rem;
      font-weight: 800;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .card-text {
      font-size: 0.93rem;
      color: var(--text-muted);
      font-weight: 500;
      flex-grow: 1;
      line-height: 1.6;
    }

    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 14px;
    }

    .tag-item {
      padding: 4px 10px;
      font-size: 0.82rem;
      font-weight: 700;
      border: 1.5px solid var(--border-dark);
      border-radius: 6px;
      background: #fff;
      box-shadow: 2px 2px 0 var(--border-dark);
    }

    .media-box {
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-solid);
      background: #eee;
      aspect-ratio: 16 / 9;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .media-box.square {
      aspect-ratio: 1 / 1;
    }

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

    .table-container {
      background: var(--bg-surface);
      border: 3px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-hover);
      overflow-x: auto;
    }

    .doodle-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }

    .doodle-table th, .doodle-table td {
      padding: 16px 18px;
      border: 1.5px solid var(--border-dark);
      font-size: 0.94rem;
    }

    .doodle-table th {
      background: var(--doodle-yellow);
      font-weight: 800;
      color: var(--text-main);
    }

    .doodle-table tr:nth-child(even) {
      background: #fafaf9;
    }

    .doodle-table .highlight-col {
      background: rgba(107, 227, 213, 0.25);
      font-weight: 700;
    }

    .rating-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: var(--doodle-orange);
      padding: 4px 12px;
      border: 2px solid var(--border-dark);
      border-radius: 20px;
      font-weight: 900;
      box-shadow: 2px 2px 0 var(--border-dark);
    }

    .timeline {
      display: flex;
      flex-direction: column;
      gap: 18px;
      position: relative;
    }

    .timeline-item {
      display: flex;
      gap: 18px;
      background: var(--bg-surface);
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 20px;
      box-shadow: var(--shadow-solid);
    }

    .timeline-num {
      width: 44px;
      height: 44px;
      flex-shrink: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.3rem;
      font-weight: 900;
      border: 2px solid var(--border-dark);
      border-radius: 50%;
      background: var(--doodle-yellow);
      box-shadow: 2px 2px 0 var(--border-dark);
    }

    .timeline-content h3 {
      font-size: 1.15rem;
      font-weight: 800;
      margin-bottom: 6px;
    }

    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: var(--bg-surface);
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-solid);
      overflow: hidden;
    }

    .faq-question {
      padding: 16px 20px;
      font-size: 1.05rem;
      font-weight: 800;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #fafaf8;
      user-select: none;
    }

    .faq-question:hover {
      background: #f4f4f0;
    }

    .faq-icon {
      font-size: 1.2rem;
      font-weight: 900;
      transition: transform 0.2s ease;
    }

    .faq-answer {
      padding: 0 20px;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.25s ease, padding 0.25s ease;
      font-size: 0.94rem;
      color: var(--text-muted);
      border-top: 1px dashed transparent;
      font-weight: 500;
    }

    .faq-item.active .faq-answer {
      padding: 16px 20px;
      max-height: 240px;
      border-top: 1.5px dashed var(--border-dark);
      background: var(--bg-surface);
    }

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

    .form-wrap {
      background: var(--bg-surface);
      border: 3px solid var(--border-dark);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-hover);
    }

    .form-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
      gap: 18px;
      margin-bottom: 18px;
    }

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

    .form-label {
      font-size: 0.92rem;
      font-weight: 800;
      color: var(--text-main);
    }

    .form-control {
      width: 100%;
      padding: 12px 14px;
      font-size: 0.95rem;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-sm);
      background: #fafaf8;
      color: var(--text-main);
      box-shadow: 2px 2px 0 var(--border-dark);
      font-family: inherit;
    }

    .form-control:focus {
      outline: none;
      background: #fff;
      border-color: #000;
      box-shadow: 4px 4px 0 var(--border-dark);
    }

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

    .contact-card-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 16px;
      margin-top: 24px;
    }

    .contact-tile {
      background: #fafaf8;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-sm);
      padding: 16px;
      box-shadow: 2px 2px 0 var(--border-dark);
    }

    .contact-tile strong {
      display: block;
      font-size: 0.95rem;
      margin-bottom: 4px;
    }

    .contact-tile p {
      font-size: 0.88rem;
      color: var(--text-muted);
      word-break: break-all;
    }

    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }

    .avatar-char {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--doodle-violet);
      border: 2px solid var(--border-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 1.1rem;
      box-shadow: 2px 2px 0 var(--border-dark);
    }

    .user-info h4 {
      font-size: 0.98rem;
      font-weight: 800;
    }

    .user-info span {
      font-size: 0.8rem;
      color: var(--text-muted);
      font-weight: 600;
    }

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

    .article-row {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .article-item {
      background: var(--bg-surface);
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-sm);
      padding: 14px 18px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      box-shadow: 2px 2px 0 var(--border-dark);
      transition: all 0.2s;
    }

    .article-item:hover {
      background: var(--doodle-yellow);
      transform: translateX(4px);
    }

    .article-title {
      font-weight: 700;
      font-size: 0.95rem;
    }

    .article-link-tag {
      font-size: 0.82rem;
      font-weight: 800;
      background: #fff;
      padding: 2px 8px;
      border: 1px solid var(--border-dark);
      border-radius: 4px;
      white-space: nowrap;
    }

    .friend-links-box {
      background: var(--bg-surface);
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 18px 24px;
      box-shadow: var(--shadow-solid);
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 14px;
      margin-top: 30px;
    }

    .friend-title {
      font-weight: 900;
      font-size: 0.95rem;
      margin-right: 8px;
    }

    .friend-links-box a {
      font-size: 0.88rem;
      font-weight: 700;
      padding: 4px 10px;
      border: 1.5px solid var(--border-dark);
      border-radius: 6px;
      background: #fafaf8;
      box-shadow: 2px 2px 0 var(--border-dark);
    }

    .friend-links-box a:hover {
      background: var(--doodle-cyan);
    }

    .site-footer {
      background: #f4f4f0;
      border-top: 3px solid var(--border-dark);
      padding: 40px 0 24px;
      margin-top: 50px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 30px;
      margin-bottom: 28px;
    }

    .footer-col h5 {
      font-size: 1.05rem;
      font-weight: 900;
      margin-bottom: 12px;
      color: var(--text-main);
    }

    .footer-col p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    .footer-bottom {
      border-top: 1.5px dashed var(--border-dark);
      padding-top: 20px;
      text-align: center;
      font-size: 0.88rem;
      color: var(--text-muted);
      font-weight: 600;
    }

    .qr-box {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      gap: 8px;
    }

    .qr-img {
      width: 100px;
      height: 100px;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius-sm);
      box-shadow: 2px 2px 0 var(--border-dark);
      background: #fff;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }

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

    .float-dock {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .dock-btn {
      width: 50px;
      height: 50px;
      background: var(--doodle-yellow);
      border: 2px solid var(--border-dark);
      border-radius: 50%;
      box-shadow: var(--shadow-solid);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 0.9rem;
      cursor: pointer;
      transition: all 0.2s;
    }

    .dock-btn:hover {
      transform: scale(1.08);
      background: var(--doodle-cyan);
    }

    @media (max-width: 900px) {
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .nav-links {
        display: none;
      }
      .nav-links.show-mobile {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        border-bottom: 2px solid var(--border-dark);
        padding: 16px;
        box-shadow: var(--shadow-solid);
      }
      .mobile-toggle {
        display: inline-flex;
      }
    }

    @media (min-width: 901px) {
      .mobile-toggle {
        display: none;
      }
    }