:root {
      --page-hello88-primary-color: #e44d26; /* Cam đậm */
      --page-hello88-secondary-color: #ff7f50; /* San hô */
      --page-hello88-accent-color: #ffd700; /* Vàng kim */
      --page-hello88-text-dark: #333;
      --page-hello88-text-light: #fff;
      --page-hello88-bg-dark: #1a1a1a;
      --page-hello88-bg-light: #f5f5f5;
      --page-hello88-card-bg: #2a2a2a;
      --page-hello88-border-color: #444;
    }

    .page-hello88 {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--page-hello88-text-dark);
      background-color: var(--page-hello88-bg-light);
      padding-bottom: 80px; /* Space for floating button */
    }

    .page-hello88-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 15px;
    }

    .page-hello88-hero {
      position: relative;
      text-align: center;
      background: var(--page-hello88-bg-dark);
      color: var(--page-hello88-text-light);
      padding: 0;
      overflow: hidden;
      margin-bottom: 20px;
    }

    .page-hello88-hero-banner {
      width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
    }

    .page-hello88-hero-content {
      position: relative; /* Ensure content is above banner if banner is absolutely positioned */
      z-index: 10;
      padding: 20px 15px;
      background: linear-gradient(180deg, rgba(0,0,0,0.6) 0%, rgba(0,0,0,0.8) 100%);
      margin-top: -5px; /* Pull up slightly over banner edge */
    }

    .page-hello88-hero h1 {
      color: var(--page-hello88-accent-color);
      font-size: 2.2em;
      margin-top: 0;
      margin-bottom: 10px;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    }

    .page-hello88-hero p {
      font-size: 1.1em;
      margin-bottom: 20px;
      color: #ccc;
    }

    .page-hello88-floating-btn {
      position: fixed;
      bottom: 20px;
      right: 20px;
      background-color: var(--page-hello88-primary-color);
      color: var(--page-hello88-text-light);
      padding: 15px 25px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
      z-index: 1000;
      transition: background-color 0.3s ease, transform 0.2s ease;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      max-width: 250px; /* Limit width for mobile */
    }

    .page-hello88-floating-btn:hover {
      background-color: var(--page-hello88-secondary-color);
      transform: translateY(-3px);
    }

    .page-hello88-floating-btn span {
      margin-left: 8px;
    }

    .page-hello88-section {
      background-color: var(--page-hello88-text-light);
      padding: 30px 20px;
      margin-bottom: 20px;
      border-radius: 8px;
      box-shadow: 0 2px 5px rgba(0,0,0,0.1);
      color: var(--page-hello88-text-dark);
    }

    .page-hello88-section.dark-bg {
      background-color: var(--page-hello88-card-bg);
      color: var(--page-hello88-text-light);
    }

    .page-hello88-section h2 {
      color: var(--page-hello88-primary-color);
      text-align: center;
      margin-bottom: 25px;
      font-size: 1.8em;
      border-bottom: 2px solid var(--page-hello88-primary-color);
      padding-bottom: 10px;
      display: inline-block;
      width: auto;
      margin-left: auto;
      margin-right: auto;
    }

    .page-hello88-section.dark-bg h2 {
      color: var(--page-hello88-accent-color);
      border-bottom-color: var(--page-hello88-accent-color);
    }

    .page-hello88-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 20px;
      margin-top: 20px;
    }

    .page-hello88-card {
      background-color: var(--page-hello88-card-bg);
      border-radius: 8px;
      overflow: hidden;
      box-shadow: 0 4px 10px rgba(0,0,0,0.2);
      text-align: center;
      transition: transform 0.2s ease;
      color: var(--page-hello88-text-light);
      border: 1px solid var(--page-hello88-border-color);
    }

    .page-hello88-card:hover {
      transform: translateY(-5px);
    }

    .page-hello88-card-img {
      width: 100%;
      height: 180px;
      object-fit: cover;
      display: block;
    }

    .page-hello88-card-content {
      padding: 15px;
    }

    .page-hello88-card h3 {
      font-size: 1.3em;
      margin-top: 10px;
      margin-bottom: 15px;
      color: var(--page-hello88-accent-color);
    }

    .page-hello88-card h3 a {
      color: var(--page-hello88-accent-color);
      text-decoration: none;
      transition: color 0.3s ease;
    }

    .page-hello88-card h3 a:hover {
      color: var(--page-hello88-secondary-color);
    }

    .page-hello88-card p {
      font-size: 0.95em;
      color: #bbb;
      margin-bottom: 15px;
    }

    .page-hello88-btn {
      display: inline-block;
      background-color: var(--page-hello88-primary-color);
      color: var(--page-hello88-text-light);
      padding: 10px 20px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      transition: background-color 0.3s ease;
    }

    .page-hello88-btn:hover {
      background-color: var(--page-hello88-secondary-color);
    }

    .page-hello88-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .page-hello88-list li {
      background-color: var(--page-hello88-card-bg);
      margin-bottom: 10px;
      padding: 15px;
      border-radius: 5px;
      display: flex;
      align-items: center;
      color: var(--page-hello88-text-light);
      border: 1px solid var(--page-hello88-border-color);
    }

    .page-hello88-list li::before {
      content: '✔';
      color: var(--page-hello88-accent-color);
      margin-right: 10px;
      font-weight: bold;
    }

    .page-hello88-text-center {
      text-align: center;
    }

    .page-hello88-cta-banner {
      background: linear-gradient(90deg, var(--page-hello88-primary-color), var(--page-hello88-secondary-color));
      color: var(--page-hello88-text-light);
      padding: 40px 20px;
      border-radius: 8px;
      text-align: center;
      margin-top: 30px;
      box-shadow: 0 4px 10px rgba(0,0,0,0.2);
    }

    .page-hello88-cta-banner h3 {
      font-size: 2em;
      margin-bottom: 15px;
      color: var(--page-hello88-text-light);
    }

    .page-hello88-cta-banner p {
      font-size: 1.1em;
      margin-bottom: 25px;
      color: #eee;
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
      .page-hello88-hero h1 {
        font-size: 1.8em;
      }

      .page-hello88-hero p {
        font-size: 1em;
      }

      .page-hello88-section h2 {
        font-size: 1.5em;
      }

      .page-hello88-grid {
        grid-template-columns: 1fr;
      }

      .page-hello88-floating-btn {
        width: calc(100% - 40px);
        left: 20px;
        right: 20px;
        bottom: 15px;
        max-width: unset;
      }
    }