/* CSS cho trang u888 com */
    :root {
      --page-u888link-primary-color: #0d1a2f; /* Dark Blue */
      --page-u888link-secondary-color: #ffcc00; /* Gold */
      --page-u888link-accent-color: #e44d26; /* Orange Red */
      --page-u888link-text-light: #ffffff;
      --page-u888link-text-dark: #333333;
      --page-u888link-bg-dark: #1a2a40;
      --page-u888link-bg-light: #2c3e50;
    }

    .page-u888link {
      font-family: 'Arial', sans-serif;
      color: var(--page-u888link-text-light);
      background-color: var(--page-u888link-bg-dark);
      line-height: 1.6;
      padding-bottom: 80px; /* Space for floating buttons */
    }

    .page-u888link-section {
      padding: 20px 15px;
      margin: 0 auto;
      max-width: 1200px;
      text-align: center;
    }

    .page-u888link-section-dark {
      background-color: var(--page-u888link-bg-light);
    }

    .page-u888link-title {
      color: var(--page-u888link-secondary-color);
      margin-bottom: 20px;
      font-size: 2em;
    }

    .page-u888link-subtitle {
      color: var(--page-u888link-accent-color);
      margin-top: 30px;
      margin-bottom: 15px;
      font-size: 1.5em;
    }

    .page-u888link-text {
      color: var(--page-u888link-text-light);
      margin-bottom: 15px;
    }

    /* Banner */
    .page-u888link-hero {
      position: relative;
      background-color: var(--page-u888link-primary-color);
      padding-bottom: 20px;
      overflow: hidden;
      border-bottom-left-radius: 20px;
      border-bottom-right-radius: 20px;
    }

    .page-u888link-hero-image {
      width: 100%;
      max-height: 300px; /* Adjust as needed */
      object-fit: cover;
      display: block;
      margin: 0 auto;
      border-radius: 10px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    }

    .page-u888link-hero-content {
      padding: 20px 15px;
      text-align: center;
    }

    .page-u888link-hero-content h1 {
      font-size: 2.5em;
      color: var(--page-u888link-secondary-color);
      margin-bottom: 10px;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    }

    .page-u888link-hero-content p {
      font-size: 1.1em;
      color: var(--page-u888link-text-light);
      max-width: 800px;
      margin: 0 auto 20px;
    }

    /* Floating Buttons */
    .page-u888link-floating-buttons {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      display: flex;
      justify-content: space-around;
      padding: 10px 0;
      background-color: rgba(13, 26, 47, 0.95);
      box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.3);
      z-index: 1000;
      gap: 10px;
    }

    .page-u888link-btn {
      display: block;
      width: 45%; /* Adjust for mobile */
      padding: 12px 15px;
      border-radius: 30px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      text-align: center;
      transition: all 0.3s ease;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    }

    .page-u888link-btn-register {
      background: linear-gradient(90deg, var(--page-u888link-accent-color) 0%, #ff6f42 100%);
      color: var(--page-u888link-text-light);
    }

    .page-u888link-btn-register:hover {
      background: linear-gradient(90deg, #ff6f42 0%, var(--page-u888link-accent-color) 100%);
      transform: translateY(-2px);
    }

    .page-u888link-btn-login {
      background: linear-gradient(90deg, var(--page-u888link-secondary-color) 0%, #ffd700 100%);
      color: var(--page-u888link-primary-color);
    }

    .page-u888link-btn-login:hover {
      background: linear-gradient(90deg, #ffd700 0%, var(--page-u888link-secondary-color) 100%);
      transform: translateY(-2px);
    }

    /* Product Display */
    .page-u888link-product-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 20px;
      margin-top: 30px;
    }

    .page-u888link-product-card {
      background-color: var(--page-u888link-bg-light);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      text-align: center;
      transition: transform 0.3s ease;
    }

    .page-u888link-product-card:hover {
      transform: translateY(-5px);
    }

    .page-u888link-product-card img {
      width: 100%;
      height: 120px;
      object-fit: cover;
      display: block;
    }

    .page-u888link-product-card-content {
      padding: 15px;
    }

    .page-u888link-product-card h3 {
      font-size: 1.2em;
      margin-bottom: 10px;
      color: var(--page-u888link-secondary-color);
    }

    .page-u888link-product-card p {
      font-size: 0.9em;
      color: var(--page-u888link-text-light);
    }

    .page-u888link-product-card a {
        color: var(--page-u888link-secondary-color);
        text-decoration: none;
        font-weight: bold;
    }

    .page-u888link-product-card a:hover {
        text-decoration: underline;
    }

    /* Features List */
    .page-u888link-features-list {
      list-style: none;
      padding: 0;
      margin-top: 20px;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 20px;
      text-align: left;
    }

    .page-u888link-features-list li {
      background-color: var(--page-u888link-bg-light);
      padding: 20px;
      border-radius: 10px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
      display: flex;
      align-items: flex-start;
      gap: 15px;
    }

    .page-u888link-features-list li::before {
      content: '✔';
      color: var(--page-u888link-accent-color);
      font-size: 1.5em;
      line-height: 1;
      margin-top: 3px;
    }

    .page-u888link-features-list strong {
      color: var(--page-u888link-secondary-color);
    }

    /* Testimonials */
    .page-u888link-testimonial-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 20px;
      margin-top: 30px;
    }

    .page-u888link-testimonial-card {
      background-color: var(--page-u888link-bg-light);
      padding: 20px;
      border-radius: 10px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
      text-align: left;
    }

    .page-u888link-testimonial-card p {
      font-style: italic;
      margin-bottom: 10px;
    }

    .page-u888link-testimonial-card strong {
      display: block;
      color: var(--page-u888link-secondary-color);
    }

    /* Responsive adjustments */
    @media (min-width: 768px) {
      .page-u888link-section {
        padding: 40px 30px;
      }

      .page-u888link-hero-content h1 {
        font-size: 3.5em;
      }

      .page-u888link-hero-content p {
        font-size: 1.2em;
      }

      .page-u888link-floating-buttons {
        justify-content: center;
        gap: 30px;
      }

      .page-u888link-btn {
        width: 250px;
        padding: 15px 20px;
        font-size: 1.2em;
      }

      .page-u888link-product-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      }
      .page-u888link-product-card img {
        height: 150px;
      }
    }

    @media (min-width: 1024px) {
      .page-u888link-product-grid {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      }
    }