:root {
      --primary-color: #007AFF;
      --secondary-color: #F5F5F7;
      --accent-color: #FF9500;
      --text-dark: #1D1D1F;
      --text-light: #86868B;
      --bg-light: #FFFFFF;
      --border-radius: 12px;
      --shadow: 0 4px 12px rgba(0,0,0,0.08);
      --transition: all 0.3s ease;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
      background-color: var(--bg-light);
      color: var(--text-dark);
      line-height: 1.6;
    }

    a {
      text-decoration: none;
      color: var(--primary-color);
    }

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

    header {
      background-color: white;
      box-shadow: 0 2px 10px rgba(0,0,0,0.05);
      position: sticky;
      top: 0;
      z-index: 100;
    }

    nav {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 0;
    }

    .nav-links {
      display: flex;
      gap: 24px;
    }

    .nav-links a {
      font-weight: 500;
      color: var(--text-dark);
      transition: var(--transition);
    }

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

    .hero {
      padding: 80px 0;
      text-align: center;
      background: linear-gradient(135deg, #f0f4ff, #ffffff);
      border-radius: 0 0 40px 40px;
    }

    .hero h1 {
      font-size: 2.5rem;
      margin-bottom: 16px;
      color: var(--text-dark);
    }

    .hero p {
      font-size: 1.2rem;
      color: var(--text-light);
      max-width: 700px;
      margin: 0 auto 30px;
    }

    .btn {
      display: inline-block;
      padding: 14px 28px;
      background-color: var(--primary-color);
      color: white;
      border-radius: 50px;
      font-weight: 600;
      transition: var(--transition);
      border: none;
      cursor: pointer;
    }

    .btn:hover {
      background-color: #005EDD;
      transform: translateY(-2px);
    }

    section {
      padding: 80px 0;
    }

    h2 {
      font-size: 2rem;
      margin-bottom: 40px;
      text-align: center;
    }

    .cards {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 24px;
    }

    .card {
      background: white;
      border-radius: var(--border-radius);
      padding: 24px;
      box-shadow: var(--shadow);
      transition: var(--transition);
    }

    .card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 20px rgba(0,0,0,0.1);
    }

    .card h3 {
      margin-bottom: 12px;
      color: var(--text-dark);
    }

    .card p {
      color: var(--text-light);
    }

    .faq-item {
      margin-bottom: 20px;
      border-bottom: 1px solid #eee;
      padding-bottom: 20px;
    }

    .faq-question {
      font-weight: 600;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .faq-answer {
      margin-top: 10px;
      color: var(--text-light);
      display: none;
    }

    .reviews {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 24px;
    }

    .review-card {
      background: white;
      border-radius: var(--border-radius);
      padding: 24px;
      box-shadow: var(--shadow);
    }

    .review-card h4 {
      margin-bottom: 8px;
    }

    .review-card small {
      color: var(--text-light);
    }

    form {
      background: white;
      padding: 30px;
      border-radius: var(--border-radius);
      box-shadow: var(--shadow);
      max-width: 600px;
      margin: 0 auto;
    }

    form div {
      margin-bottom: 20px;
    }

    label {
      display: block;
      margin-bottom: 8px;
      font-weight: 500;
    }

    input, select, textarea {
      width: 100%;
      padding: 12px;
      border: 1px solid #ddd;
      border-radius: 8px;
    }

    footer {
      background-color: var(--text-dark);
      color: white;
      padding: 40px 0;
      text-align: center;
    }

    .footer-links {
      display: flex;
      justify-content: center;
      gap: 20px;
      margin-bottom: 20px;
      flex-wrap: wrap;
    }

    .footer-links a {
      color: white;
      opacity: 0.8;
    }

    .footer-links a:hover {
      opacity: 1;
    }

    .floating-btn {
      position: fixed;
      bottom: 30px;
      right: 30px;
      background-color: var(--primary-color);
      color: white;
      border-radius: 50%;
      width: 60px;
      height: 60px;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 12px rgba(0,0,0,0.2);
      cursor: pointer;
      z-index: 99;
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
      }

      .hero h1 {
        font-size: 2rem;
      }

      .hero p {
        font-size: 1rem;
      }

      section {
        padding: 50px 0;
      }
    }