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

    body {
      font-family: 'Segoe UI', sans-serif;
      background-color: #f9f9f9;
      color: #333;
    }

    .container {
      width: 90%;
      max-width: 1200px;
      margin: auto;
      padding: 40px 0;
    }

    header {
      background: #0a0a0a;
      color: white;
      z-index: 1000;
      width: 100%;
      height: 200px;
    }

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

    .logo {
      width: 120px;
    }

    nav ul {
      list-style: none;
      display: flex;
      gap: 20px;
    }

    nav a {
      color: white;
      text-decoration: none;
      font-weight: 500;
    }

    .titulo-servicos {
      text-align: center;
      margin-bottom: 40px;
      font-size: 2em;
      font-weight: bold;
    }

    .hero {
      background-color: #001f3f;
      color: white;
      padding: 150px 0;
      text-align: center;
    }

    .hero h1 {
      font-size: 36px;
      margin-bottom: 15px;
    }

    .content-all {
      display: flex;
      flex-direction: column;
    }

    .btn {
      padding: 12px 24px;
      background: #25D366;
      color: white;
      border: none;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
    }

    .cards {
      display: flex;
      gap: 20px;
      flex-wrap: wrap;
      justify-content: center;
    }

    .card {
      background: white;
      padding: 20px;
      border-radius: 10px;
      flex: 1;
      min-width: 250px;
      box-shadow: 0 2px 5px rgba(0,0,0,0.1);
      text-align: center;
    }

    .card h3 {
      color: #0077cc;
    }

    .sobre, .contato, .diferenciais, .portfolio, .faq, .certificacoes {
      background-color: #e9f2ff;
    }

    form.formulario {
      display: flex;
      flex-direction: column;
      gap: 15px;
    }

    form input, form textarea, form select {
      padding: 10px;
      border-radius: 5px;
      border: 1px solid #ccc;
    }

    form button {
      background-color: #007bff;
      color: white;
      border: none;
      padding: 12px;
      border-radius: 5px;
      cursor: pointer;
    }

    footer {
      background-color: #0a0a0a;
      color: white;
      text-align: center;
      padding: 20px 0;
    }

    .zap-fixo {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background: #25D366;
      color: white;
      font-size: 24px;
      padding: 14px;
      border-radius: 50%;
      text-decoration: none;
      z-index: 999;
    }

    .diferenciais {
      padding: 60px 20px;
      background-color: #f4f7fa;
    }

    .diferenciais h2 {
      text-align: center;
      font-size: 2em;
      margin-bottom: 20px;
    }

    .diferenciais .intro {
      max-width: 800px;
      margin: 0 auto 40px auto;
      text-align: center;
      font-size: 1.1em;
      color: #444;
      line-height: 1.6;
    }

    .lista-diferenciais {
      list-style: none;
      padding: 0;
      max-width: 900px;
      margin: 0 auto;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 20px;
    }

    .lista-diferenciais li {
      background: #ffffff;
      padding: 20px 25px;
      border-radius: 12px;
      box-shadow: 0 4px 10px rgba(0,0,0,0.05);
      font-size: 1em;
      line-height: 1.5;
      color: #333;
    }

    .lista-diferenciais li strong {
      display: block;
      margin-bottom: 8px;
      color: #0077cc;
    }