:root {
      --primary: #ff2d55;
      --primary-gradient: linear-gradient(135deg, #ff2d55 0%, #ff6b00 50%, #9013fe 100%);
      --accent: #00d2ff;
      --dark-text: #1d1d1f;
      --mid-text: #48484a;
      --light-text: #86868b;
      --bg-main: #fbfbfd;
      --bg-card: #ffffff;
      --border-color: #eaeaea;
      --container-width: 1200px;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      background-color: var(--bg-main);
      color: var(--dark-text);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }
    .container {
      max-width: var(--container-width);
      margin: 0 auto;
      padding: 0 20px;
      width: 100%;
    }
    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);
    }
    .nav-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 72px;
    }
    .brand-area {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-title {
      font-size: 20px;
      font-weight: 800;
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      letter-spacing: -0.5px;
    }
    .nav-links {
      display: flex;
      gap: 0;
      align-items: center;
      list-style: none;
    }
    .nav-links a {
      color: var(--dark-text);
      text-decoration: none;
      font-size: 14px;
      font-weight: 500;
      padding: 8px 12px;
      border-radius: 6px;
      transition: color 0.2s ease, background-color 0.2s ease;
    }
    .nav-links a:hover {
      color: var(--primary);
      background: rgba(255, 45, 85, 0.05);
    }
    .nav-cta {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn-main {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 24px;
      background: var(--primary-gradient);
      color: #ffffff !important;
      text-decoration: none;
      font-size: 14px;
      font-weight: 600;
      border-radius: 30px;
      box-shadow: 0 4px 14px rgba(255, 45, 85, 0.35);
      border: none;
      cursor: pointer;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .btn-main:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 45, 85, 0.5);
    }
    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 20px;
      border: 1.5px solid var(--primary);
      color: var(--primary);
      text-decoration: none;
      font-size: 14px;
      font-weight: 600;
      border-radius: 30px;
      background: #ffffff;
      transition: all 0.2s ease;
    }
    .btn-outline:hover {
      background: var(--primary);
      color: #ffffff;
    }
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--dark-text);
      cursor: pointer;
    }
    .hero-section {
      padding: 70px 0 50px;
      text-align: center;
      background: radial-gradient(circle at 50% 20%, rgba(255, 45, 85, 0.08) 0%, rgba(144, 19, 254, 0.04) 50%, rgba(251, 251, 253, 0) 100%);
    }
    .hero-badge {
      display: inline-block;
      padding: 6px 16px;
      background: rgba(255, 45, 85, 0.1);
      color: var(--primary);
      font-size: 13px;
      font-weight: 700;
      border-radius: 20px;
      margin-bottom: 20px;
    }
    .hero-title {
      font-size: 40px;
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 18px;
      letter-spacing: -1px;
      color: #111;
    }
    .hero-desc {
      font-size: 18px;
      color: var(--mid-text);
      max-width: 780px;
      margin: 0 auto 30px;
    }
    .hero-actions {
      display: flex;
      justify-content: center;
      gap: 16px;
      margin-bottom: 40px;
    }
    .hero-stats {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 24px;
      box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    }
    .stat-item h3 {
      font-size: 28px;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 4px;
    }
    .stat-item p {
      font-size: 13px;
      color: var(--light-text);
      font-weight: 500;
    }
    .model-marquee {
      margin-top: 30px;
      padding: 16px 0;
      border-top: 1px dashed var(--border-color);
      border-bottom: 1px dashed var(--border-color);
    }
    .model-tags {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
    }
    .tag-item {
      font-size: 12px;
      font-weight: 600;
      padding: 4px 12px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 20px;
      color: var(--mid-text);
    }
    .tag-item.highlight {
      background: rgba(255, 45, 85, 0.08);
      color: var(--primary);
      border-color: rgba(255, 45, 85, 0.2);
    }
    .section-wrap {
      padding: 70px 0;
    }
    .section-head {
      text-align: center;
      max-width: 680px;
      margin: 0 auto 40px;
    }
    .section-subtitle {
      font-size: 13px;
      font-weight: 700;
      text-transform: uppercase;
      color: var(--primary);
      letter-spacing: 1.5px;
      margin-bottom: 8px;
    }
    .section-title {
      font-size: 28px;
      font-weight: 800;
      color: var(--dark-text);
      margin-bottom: 12px;
    }
    .section-intro {
      font-size: 15px;
      color: var(--light-text);
    }
    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 24px;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .card:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 28px rgba(0,0,0,0.06);
    }
    .card-icon {
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: rgba(255, 45, 85, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      margin-bottom: 16px;
    }
    .card-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--dark-text);
    }
    .card-desc {
      font-size: 14px;
      color: var(--mid-text);
      line-height: 1.5;
    }
    .media-box {
      border-radius: 12px;
      overflow: hidden;
      margin-bottom: 16px;
      border: 1px solid var(--border-color);
      background: #f0f0f2;
    }
    .media-box img {
      width: 100%;
      height: auto;
      display: block;
    }
    .steps-container {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .step-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 24px;
      position: relative;
    }
    .step-number {
      font-size: 32px;
      font-weight: 900;
      color: rgba(255, 45, 85, 0.2);
      line-height: 1;
      margin-bottom: 8px;
    }
    .table-container {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 16px;
      overflow-x: auto;
      box-shadow: 0 4px 20px rgba(0,0,0,0.02);
    }
    table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }
    th, td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
    }
    th {
      background: #fdfdfd;
      font-weight: 700;
      color: var(--dark-text);
    }
    .score-badge {
      display: inline-block;
      background: var(--primary-gradient);
      color: #fff;
      padding: 4px 10px;
      border-radius: 20px;
      font-weight: 700;
      font-size: 12px;
    }
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 12px;
      overflow: hidden;
    }
    .faq-question {
      padding: 18px 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      font-weight: 600;
      font-size: 15px;
    }
    .faq-question::after {
      content: '+';
      font-size: 20px;
      color: var(--primary);
      transition: transform 0.2s;
    }
    .faq-item.active .faq-question::after {
      transform: rotate(45deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
      background: #fafafc;
      padding: 0 20px;
    }
    .faq-item.active .faq-answer {
      max-height: 200px;
      padding: 16px 20px;
      border-top: 1px solid var(--border-color);
    }
    .faq-answer p {
      font-size: 14px;
      color: var(--mid-text);
      line-height: 1.6;
    }
    .form-wrapper {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 20px;
      padding: 36px;
      box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    }
    .form-group {
      margin-bottom: 20px;
    }
    .form-group label {
      display: block;
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 8px;
      color: var(--dark-text);
    }
    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      font-size: 14px;
      background: #fafafc;
      outline: none;
      transition: border-color 0.2s;
    }
    .form-control:focus {
      border-color: var(--primary);
      background: #ffffff;
    }
    .contact-info-block {
      background: linear-gradient(135deg, rgba(255,45,85,0.04) 0%, rgba(144,19,254,0.04) 100%);
      border: 1px solid var(--border-color);
      border-radius: 20px;
      padding: 36px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .qr-container {
      display: flex;
      align-items: center;
      gap: 20px;
      margin-top: 20px;
      background: #ffffff;
      padding: 16px;
      border-radius: 12px;
      border: 1px solid var(--border-color);
    }
    .qr-box {
      width: 100px;
      height: 100px;
      flex-shrink: 0;
    }
    .qr-box img {
      width: 100%;
      height: 100%;
      object-fit: contain;
    }
    .agent-card {
      background: linear-gradient(135deg, #1d1d1f 0%, #2c2c2e 100%);
      color: #ffffff;
      border-radius: 20px;
      padding: 40px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .agent-content h3 {
      font-size: 24px;
      font-weight: 800;
      margin-bottom: 12px;
      color: #ffffff;
    }
    .agent-content p {
      font-size: 15px;
      color: #a1a1a6;
      max-width: 600px;
    }
    footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 50px 0 30px;
    }
    .footer-links-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
      margin-bottom: 40px;
    }
    .footer-col h4 {
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 16px;
      color: var(--dark-text);
    }
    .footer-col ul {
      list-style: none;
    }
    .footer-col li {
      margin-bottom: 10px;
    }
    .footer-col a {
      color: var(--mid-text);
      text-decoration: none;
      font-size: 13px;
      transition: color 0.2s;
    }
    .footer-col a:hover {
      color: var(--primary);
    }
    .footer-bottom {
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
      color: var(--light-text);
    }
    .friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 10px;
    }
    .friend-links a {
      color: var(--light-text);
      text-decoration: none;
      font-size: 12px;
    }
    .friend-links a:hover {
      color: var(--primary);
    }
    .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;
      box-shadow: 0 4px 16px rgba(0,0,0,0.12);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      border: 1px solid var(--border-color);
      color: var(--dark-text);
      text-decoration: none;
      font-weight: 700;
      transition: all 0.2s;
    }
    .float-btn:hover {
      background: var(--primary);
      color: #ffffff;
    }
    @media (max-width: 992px) {
      .grid-4, .steps-container {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-links-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .agent-card {
        flex-direction: column;
        text-align: center;
        gap: 24px;
      }
    }
    @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);
      }
      .nav-links.active {
        display: flex;
      }
      .menu-toggle {
        display: block;
      }
      .hero-title {
        font-size: 28px;
      }
      .hero-stats {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-2, .grid-3, .grid-4, .steps-container {
        grid-template-columns: 1fr;
      }
      .footer-links-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }