body {
      background-color: #ffffff;
      color: #333333;
      font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
      overflow-x: hidden;
    }
    header, footer {
      background-color: #000000;
      color: #ffffff;
    }
    a {
      text-decoration: none;
    }
    .navbar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 20px;
    }
    .navbar-brand img {
      max-height: 60px;
    }
    .navbar-toggler {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: #fff;
    }
    .nav-list {
      list-style: none;
      display: flex;
      gap: 1rem;
    }
    .nav-list li {
      display: inline-block;
    }
    .nav-list a {
      color: #fff;
      text-decoration: none;
      transition: color 0.3s ease;
    }
    .nav-list a:hover {
      color: #f0b90b;
    }
.banner {
    position: relative;
    padding: 100px 0 0 0;
    color: #fff;
    background: #000;
}
    .banner::before {
      content: "";
      position: absolute;
      left: 0; right: 0; top: 0; bottom: 0;
      background: rgba(0, 0, 0, 0.2);
    }
    .banner .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
      position: relative;
      z-index: 2;
      text-align: center;
    }
    .banner h1 {
      font-size: 48px;
      font-weight: bold;
      margin-bottom: 20px;
    }
    .banner p {
      font-size: 18px;
      margin-bottom: 30px;
    }
    .btn {
      display: inline-block;
      padding: 12px 24px;
      border: none;
      border-radius: 4px;
      cursor: pointer;
      text-align: center;
      font-size: 16px;
      transition: all 0.3s ease;
    }
    .btn-warning {
      background: #2354E6;
      color: #fff;
    }
    .btn-outline-light {
      background: transparent;
      color: #fff;
      border: 2px solid #fff;
    }
    .btn-lg {
      font-size: 18px;
      padding: 14px 32px;
    }
    .btn:hover {
      opacity: 0.8;
    }
    .container-section {
      max-width: 1200px;
      margin: 0 auto;
      padding: 60px 15px;
    }
    .section-title {
      margin-bottom: 40px;
      text-align: center;
    }
    .section-title h2 {
      font-size: 32px;
      font-weight: bold;
      position: relative;
      display: inline-block;
    }
    .section-title h2::after {
      content: "";
      display: block;
      width: 60px;
      height: 3px;
      background: #f0b90b;
      margin: 8px auto 0;
    }
    .section-title p {
      color: #666;
      margin-top: 10px;
    }
    .flex-row {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
    }
    .col-6 {
      flex: 0 0 calc(50% - 20px);
      box-sizing: border-box;
    }
    .bg-light {
      background-color: #f8f9fa;
    }
    .bg-dark {
      background-color: #000000;
    }
    .platform-advantage {
      background: #f8f9fa;
    }
    .custom-card {
      background: #fff;
      border-radius: 6px;
      padding: 20px;
      box-shadow: 0 4px 10px rgba(0,0,0,0.06);
      transition: 0.3s ease;
    }
    .custom-card:hover {
      transform: translateY(-2px);
      box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    }
    .guide-section {
      background: #f8f9fa;
    }
    .guide-card {
      border: 2px solid #f0b90b;
      border-radius: 10px;
      padding: 20px;
      margin-bottom: 20px;
      background: #fff;
      transition: 0.3s ease;
    }
    .guide-card h3 {
      color: #f0b90b;
      margin-bottom: 10px;
    }
    .guide-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 6px 18px rgba(0,0,0,0.12);
    }
    .alert {
      padding: 20px;
      border-radius: 4px;
      margin-bottom: 20px;
    }
    .alert-danger {
      background: #f8d7da;
      color: #721c24;
    }
    .alert-warning {
      background: #fff3cd;
      color: #856404;
    }
    .alert-custom {
      border-left: 5px solid #f0b90b;
      background: #fff9ea;
    }
    .table-container {
      overflow-x: auto;
    }
    table {
      width: 100%;
      border-collapse: collapse;
      margin-bottom: 20px;
    }
    th, td {
      padding: 12px 15px;
      border: 1px solid #ddd;
      text-align: center;
    }
    th {
      background: #f0b90b;
      color: #000;
    }
    .footer-text {
      color: #999999;
      font-size: 14px;
    }
    .img-fluid {
      max-width: 100%;
      height: auto;
    }
    .flex-cards {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
    }
    .card {
      background: #fff;
      border-radius: 6px;
      flex: 1;
      min-width: 250px;
      padding: 20px;
      box-shadow: 0 4px 10px rgba(0,0,0,0.06);
      transition: 0.3s ease;
    }
    .card:hover {
      box-shadow: 0 6px 18px rgba(0,0,0,0.08);
    }
    .card-body h4 {
      margin-top: 0;
      margin-bottom: 10px;
      color: #333;
    }
    .card-body p, .card-body ul {
      margin-bottom: 10px;
    }
    .card-body ul {
      padding-left: 20px;
      list-style: disc;
    }
    .py-5 {
      padding-top: 60px;
      padding-bottom: 60px;
    }
    .py-4 {
      padding-top: 40px;
      padding-bottom: 40px;
    }
    .mb-4 {
      margin-bottom: 24px;
    }
    .mb-3 {
      margin-bottom: 16px;
    }
    .mb-0 {
      margin-bottom: 0;
    }
    .mt-4 {
      margin-top: 24px;
    }
    .mt-3 {
      margin-top: 16px;
    }
    .text-center {
      text-align: center;
    }
    .text-white {
      color: #fff;
    }
    .text-danger {
      color: #dc3545;
    }
    .lead {
      font-size: 1.25rem;
      font-weight: 300;
    }
    .rounded {
      border-radius: 6px;
    }
    .footer-links ul {
      list-style: none;
      padding-left: 0;
    }
    .footer-links li {
      margin-bottom: 6px;
    }
    .footer-links a {
      color: #fff;
    }
    @media (max-width: 768px) {
      .navbar-toggler {
        display: block;
      }
      .nav-list {
        display: none;
        flex-direction: column;
        gap: 0;
        background-color: #000;
        position: absolute;
        top: 56px;
        left: 0;
        width: 100%;
        padding: 10px;
      }
      .nav-list.show {
        display: flex;
      }
      .col-6 {
        flex: 0 0 100%;
      }
      .banner h1 {
        font-size: 32px;
      }
    }