:root {
      --primary: #ff0055;
      --primary-hover: #e0004c;
      --secondary: #00d2ff;
      --accent-yellow: #ffe600;
      --accent-purple: #7928ca;
      --dark: #12131a;
      --dark-muted: #2a2d3d;
      --text-main: #181920;
      --text-sub: #525666;
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --border-color: #e5e9f0;
      --shadow-sm: 0 4px 12px rgba(18, 19, 26, 0.05);
      --shadow-md: 0 10px 25px rgba(18, 19, 26, 0.08);
      --shadow-pop: 5px 5px 0px #12131a;
      --radius: 12px;
      --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
    }
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: var(--transition);
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 2px solid var(--dark);
      padding: 12px 0;
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .brand-box {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-box img {
      height: 38px;
      width: auto;
    }
    .brand-title {
      font-size: 1.25rem;
      font-weight: 900;
      color: var(--dark);
      letter-spacing: -0.5px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }
    .nav-links li a {
      font-weight: 700;
      color: var(--dark);
      font-size: 0.92rem;
      padding: 8px 12px;
      border-radius: 6px;
      display: inline-block;
    }
    .nav-links li a:hover {
      background: var(--accent-yellow);
      color: var(--dark);
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn-pop {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      padding: 10px 22px;
      border-radius: 8px;
      border: 2px solid var(--dark);
      cursor: pointer;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      transition: var(--transition);
      box-shadow: 3px 3px 0px var(--dark);
    }
    .btn-pop:hover {
      transform: translate(-2px, -2px);
      box-shadow: 5px 5px 0px var(--dark);
    }
    .btn-pop:active {
      transform: translate(1px, 1px);
      box-shadow: 1px 1px 0px var(--dark);
    }
    .btn-primary {
      background: var(--primary);
      color: #fff;
    }
    .btn-secondary {
      background: var(--secondary);
      color: var(--dark);
    }
    .btn-yellow {
      background: var(--accent-yellow);
      color: var(--dark);
    }
    .btn-white {
      background: #ffffff;
      color: var(--dark);
    }
    .btn-large {
      padding: 14px 32px;
      font-size: 1.1rem;
    }
    .nav-toggle {
      display: none;
      background: none;
      border: 2px solid var(--dark);
      padding: 6px 10px;
      font-size: 1.2rem;
      border-radius: 6px;
      cursor: pointer;
    }
    .section-wrap {
      padding: 70px 0;
      border-bottom: 2px solid var(--border-color);
    }
    .section-title-wrap {
      text-align: center;
      margin-bottom: 45px;
    }
    .section-tag {
      display: inline-block;
      font-weight: 900;
      font-size: 0.85rem;
      padding: 4px 12px;
      background: var(--accent-yellow);
      border: 2px solid var(--dark);
      box-shadow: 2px 2px 0px var(--dark);
      border-radius: 20px;
      margin-bottom: 12px;
      text-transform: uppercase;
    }
    .section-title {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--dark);
      letter-spacing: -0.5px;
      line-height: 1.25;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-sub);
      max-width: 680px;
      margin: 10px auto 0;
    }
    .hero-section {
      background: linear-gradient(135deg, #fff2f6 0%, #e6f9ff 100%);
      padding: 80px 0 90px;
      position: relative;
      border-bottom: 3px solid var(--dark);
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      border: 2px solid var(--dark);
      padding: 6px 14px;
      border-radius: 30px;
      font-weight: 800;
      font-size: 0.88rem;
      box-shadow: 2px 2px 0px var(--dark);
      margin-bottom: 20px;
    }
    .hero-badge-dot {
      width: 10px;
      height: 10px;
      background: var(--primary);
      border-radius: 50%;
      display: inline-block;
    }
    .hero-title {
      font-size: 2.8rem;
      font-weight: 950;
      color: var(--dark);
      line-height: 1.2;
      margin-bottom: 20px;
      letter-spacing: -1px;
    }
    .hero-title span {
      background: var(--primary);
      color: #ffffff;
      padding: 2px 10px;
      display: inline-block;
      border-radius: 6px;
      border: 2px solid var(--dark);
      box-shadow: 3px 3px 0px var(--dark);
      transform: rotate(-1deg);
    }
    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-sub);
      margin-bottom: 32px;
      line-height: 1.7;
    }
    .hero-cta-box {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
      margin-bottom: 30px;
    }
    .hero-feature-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .feature-chip {
      background: #ffffff;
      border: 1.5px solid var(--dark);
      font-size: 0.82rem;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: 6px;
      color: var(--dark);
    }
    .hero-stats-panel {
      background: #ffffff;
      border: 3px solid var(--dark);
      border-radius: 16px;
      padding: 30px;
      box-shadow: 8px 8px 0px var(--dark);
    }
    .stats-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 2px solid var(--border-color);
      padding-bottom: 15px;
      margin-bottom: 20px;
    }
    .stats-header h3 {
      font-size: 1.2rem;
      font-weight: 900;
    }
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
    }
    .stat-card {
      background: var(--bg-main);
      border: 2px solid var(--dark);
      padding: 16px;
      border-radius: 10px;
      text-align: center;
    }
    .stat-value {
      font-size: 1.8rem;
      font-weight: 950;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 4px;
    }
    .stat-name {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--text-sub);
    }
    .model-ticker {
      margin-top: 20px;
      padding-top: 15px;
      border-top: 2px dashed var(--border-color);
      font-size: 0.82rem;
      color: var(--text-sub);
      line-height: 1.6;
    }
    .model-ticker strong {
      color: var(--dark);
    }
    .model-badge-row {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-top: 10px;
    }
    .model-tag {
      font-size: 0.75rem;
      padding: 3px 8px;
      background: #f0f3f8;
      border-radius: 4px;
      font-weight: 700;
      color: var(--dark-muted);
      border: 1px solid #d8dee8;
    }
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .pop-card {
      background: var(--bg-card);
      border: 2.5px solid var(--dark);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: 4px 4px 0px var(--dark);
      transition: var(--transition);
    }
    .pop-card:hover {
      transform: translateY(-4px);
      box-shadow: 6px 6px 0px var(--dark);
    }
    .card-icon {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      border: 2px solid var(--dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 1.3rem;
      margin-bottom: 16px;
    }
    .icon-pink { background: #ffe6ee; color: var(--primary); }
    .icon-blue { background: #e0f7ff; color: #0088cc; }
    .icon-yellow { background: #fffde0; color: #b39200; }
    .icon-purple { background: #f3e8ff; color: var(--accent-purple); }
    .pop-card h3 {
      font-size: 1.15rem;
      font-weight: 850;
      margin-bottom: 10px;
      color: var(--dark);
    }
    .pop-card p {
      font-size: 0.9rem;
      color: var(--text-sub);
      line-height: 1.55;
    }
    .pop-card ul {
      list-style: none;
      margin-top: 12px;
      font-size: 0.88rem;
      color: var(--text-main);
    }
    .pop-card ul li {
      margin-bottom: 6px;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .pop-card ul li::before {
      content: "✓";
      color: var(--primary);
      font-weight: 900;
    }
    .step-card {
      background: #ffffff;
      border: 2px solid var(--dark);
      border-radius: var(--radius);
      padding: 24px;
      position: relative;
      box-shadow: 4px 4px 0px var(--dark);
    }
    .step-number {
      position: absolute;
      top: -14px;
      left: 20px;
      background: var(--primary);
      color: #ffffff;
      font-weight: 900;
      font-size: 0.85rem;
      padding: 2px 10px;
      border: 2px solid var(--dark);
      border-radius: 12px;
    }
    .step-card h3 {
      font-size: 1.15rem;
      font-weight: 850;
      margin-top: 8px;
      margin-bottom: 8px;
    }
    .step-card p {
      font-size: 0.88rem;
      color: var(--text-sub);
    }
    .table-container {
      background: #ffffff;
      border: 3px solid var(--dark);
      border-radius: 14px;
      overflow-x: auto;
      box-shadow: 6px 6px 0px var(--dark);
    }
    .custom-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 650px;
    }
    .custom-table th, .custom-table td {
      padding: 16px 20px;
      border-bottom: 1.5px solid var(--border-color);
      font-size: 0.95rem;
    }
    .custom-table th {
      background: #f1f5f9;
      font-weight: 900;
      color: var(--dark);
      border-bottom: 2px solid var(--dark);
    }
    .custom-table tr:last-child td {
      border-bottom: none;
    }
    .custom-table .highlight-col {
      background: #fff8eb;
      font-weight: 700;
      color: var(--dark);
    }
    .score-badge {
      display: inline-block;
      background: var(--primary);
      color: #fff;
      font-weight: 900;
      padding: 4px 10px;
      border-radius: 6px;
      border: 1.5px solid var(--dark);
      font-size: 0.9rem;
    }
    .media-card {
      background: #ffffff;
      border: 2.5px solid var(--dark);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: 4px 4px 0px var(--dark);
    }
    .media-img-wrap {
      width: 100%;
      aspect-ratio: 16 / 9;
      overflow: hidden;
      background: #eaeef5;
      border-bottom: 2px solid var(--dark);
    }
    .media-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }
    .media-card:hover .media-img-wrap img {
      transform: scale(1.03);
    }
    .media-content {
      padding: 20px;
    }
    .media-content h3 {
      font-size: 1.15rem;
      font-weight: 850;
      margin-bottom: 8px;
    }
    .media-content p {
      font-size: 0.88rem;
      color: var(--text-sub);
    }
    .faq-accordion {
      display: flex;
      flex-direction: column;
      gap: 14px;
      max-width: 900px;
      margin: 0 auto;
    }
    .faq-item {
      background: #ffffff;
      border: 2px solid var(--dark);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 3px 3px 0px var(--dark);
    }
    .faq-question {
      width: 100%;
      text-align: left;
      padding: 16px 20px;
      background: none;
      border: none;
      font-size: 1rem;
      font-weight: 800;
      color: var(--dark);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 10px;
    }
    .faq-toggle-icon {
      font-size: 1.2rem;
      font-weight: 900;
      color: var(--primary);
      transition: transform 0.2s ease;
    }
    .faq-answer {
      display: none;
      padding: 0 20px 16px;
      font-size: 0.92rem;
      color: var(--text-sub);
      line-height: 1.65;
      border-top: 1px dashed var(--border-color);
    }
    .faq-item.active .faq-answer {
      display: block;
      padding-top: 14px;
    }
    .faq-item.active .faq-toggle-icon {
      transform: rotate(45deg);
    }
    .testimonial-card {
      background: #ffffff;
      border: 2px solid var(--dark);
      border-radius: var(--radius);
      padding: 22px;
      box-shadow: 4px 4px 0px var(--dark);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testimonial-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }
    .user-avatar-tag {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--accent-yellow);
      border: 2px solid var(--dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 1.1rem;
      color: var(--dark);
    }
    .user-info h4 {
      font-size: 1rem;
      font-weight: 850;
      color: var(--dark);
    }
    .user-info span {
      font-size: 0.8rem;
      color: var(--text-sub);
    }
    .testimonial-text {
      font-size: 0.9rem;
      color: var(--text-main);
      line-height: 1.6;
      margin-bottom: 12px;
    }
    .testimonial-rating {
      color: #ff9900;
      font-size: 0.9rem;
      font-weight: 900;
    }
    .form-box {
      background: #ffffff;
      border: 3px solid var(--dark);
      border-radius: 16px;
      padding: 35px;
      box-shadow: 7px 7px 0px var(--dark);
      max-width: 800px;
      margin: 0 auto;
    }
    .form-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 18px;
      margin-bottom: 18px;
    }
    .form-group-full {
      grid-column: span 2;
    }
    .form-label {
      display: block;
      font-size: 0.9rem;
      font-weight: 800;
      color: var(--dark);
      margin-bottom: 6px;
    }
    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: 2px solid var(--dark);
      border-radius: 8px;
      font-size: 0.95rem;
      background: #fdfdfd;
      outline: none;
      transition: var(--transition);
      font-family: inherit;
    }
    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 2px 2px 0px var(--dark);
      background: #ffffff;
    }
    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }
    .article-list {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
    }
    .article-item {
      background: #ffffff;
      border: 2px solid var(--dark);
      padding: 16px 20px;
      border-radius: 10px;
      box-shadow: 3px 3px 0px var(--dark);
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: var(--transition);
    }
    .article-item:hover {
      transform: translateX(4px);
      border-color: var(--primary);
    }
    .article-item a {
      font-weight: 800;
      font-size: 0.95rem;
      color: var(--dark);
    }
    .site-footer {
      background: #ffffff;
      border-top: 3px solid var(--dark);
      padding: 60px 0 30px;
      color: var(--dark);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-info h4 {
      font-size: 1.2rem;
      font-weight: 900;
      margin-bottom: 12px;
    }
    .footer-info p {
      font-size: 0.88rem;
      color: var(--text-sub);
      line-height: 1.65;
      margin-bottom: 12px;
    }
    .contact-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.9rem;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .qr-box {
      display: flex;
      gap: 20px;
      align-items: center;
    }
    .qr-img {
      width: 105px;
      height: 105px;
      border: 2px solid var(--dark);
      border-radius: 8px;
      padding: 4px;
      background: #fff;
    }
    .friend-links-box {
      border-top: 1.5px solid var(--border-color);
      padding-top: 20px;
      margin-bottom: 25px;
    }
    .friend-links-title {
      font-weight: 800;
      font-size: 0.9rem;
      margin-bottom: 10px;
      color: var(--dark);
    }
    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }
    .friend-links-list a {
      font-size: 0.85rem;
      color: var(--text-sub);
      background: #f1f5f9;
      padding: 4px 10px;
      border-radius: 4px;
      border: 1px solid #dbe2ea;
    }
    .friend-links-list a:hover {
      background: var(--accent-yellow);
      color: var(--dark);
      border-color: var(--dark);
    }
    .copyright-bar {
      border-top: 2px solid var(--dark);
      padding-top: 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--text-sub);
      flex-wrap: wrap;
      gap: 10px;
    }
    .float-service {
      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: 2px solid var(--dark);
      box-shadow: 3px 3px 0px var(--dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      cursor: pointer;
      transition: var(--transition);
    }
    .float-btn:hover {
      transform: translateY(-3px);
      background: var(--accent-yellow);
    }
    .modal-kefu {
      display: none;
      position: fixed;
      inset: 0;
      background: rgba(0, 0, 0, 0.6);
      z-index: 10000;
      align-items: center;
      justify-content: center;
      padding: 20px;
    }
    .modal-kefu.active {
      display: flex;
    }
    .modal-body {
      background: #ffffff;
      border: 3px solid var(--dark);
      border-radius: 16px;
      padding: 24px;
      box-shadow: 8px 8px 0px var(--dark);
      max-width: 320px;
      text-align: center;
      position: relative;
    }
    .modal-close {
      position: absolute;
      top: 10px;
      right: 12px;
      font-size: 1.5rem;
      font-weight: 900;
      background: none;
      border: none;
      cursor: pointer;
    }
    @media (max-width: 992px) {
      .hero-grid { grid-template-columns: 1fr; }
      .grid-4 { grid-template-columns: repeat(2, 1fr); }
      .grid-3 { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: 1fr; }
      .article-list { grid-template-columns: 1fr; }
    }
    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: #ffffff;
        border-bottom: 2px solid var(--dark);
        flex-direction: column;
        padding: 15px 20px;
      }
      .nav-links.active { display: flex; }
      .nav-toggle { display: block; }
      .hero-title { font-size: 2.1rem; }
      .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
      .form-grid { grid-template-columns: 1fr; }
      .form-group-full { grid-column: span 1; }
      .header-actions .btn-pop:not(.btn-yellow) { display: none; }
    }