:root {
      --page-sv388open-primary-color: #e44d26; /* Cam đỏ */
      --page-sv388open-secondary-color: #ffb74d; /* Cam nhạt */
      --page-sv388open-accent-color: #4CAF50; /* Xanh lá */
      --page-sv388open-text-dark: #333333;
      --page-sv388open-text-light: #ffffff;
      --page-sv388open-bg-light: #f5f5f5;
      --page-sv388open-bg-dark: #222222;
      --page-sv388open-border-color: #e0e0e0;
    }

    .page-sv388open {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--page-sv388open-text-dark);
      background-color: var(--page-sv388open-bg-light);
      overflow-x: hidden;
    }

    .page-sv388open__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 15px;
      box-sizing: border-box;
    }

    .page-sv388open__section {
      padding: 40px 0;
      text-align: center;
    }

    .page-sv388open__section--dark {
      background-color: var(--page-sv388open-bg-dark);
      color: var(--page-sv388open-text-light);
    }

    .page-sv388open__section-title {
      font-size: 2.5em;
      margin-bottom: 30px;
      color: var(--page-sv388open-primary-color);
      font-weight: bold;
    }
    
    .page-sv388open__section--dark .page-sv388open__section-title {
      color: var(--page-sv388open-secondary-color);
    }

    .page-sv388open__text-center {
      text-align: center;
    }

    /* Hero Section */
    .page-sv388open__hero-section {
      position: relative;
      padding-top: 10px; /* Adjust for fixed header */
      background-color: #000;
      color: var(--page-sv388open-text-light);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      text-align: center;
      overflow: hidden;
    }

    .page-sv388open__hero-image-wrapper {
        width: 100%;
        max-width: 100%;
        overflow: hidden;
        box-sizing: border-box;
        display: flex;
        justify-content: center;
        align-items: center;
        margin-bottom: 20px;
    }

    .page-sv388open__hero-image {
        max-width: 100%;
        height: auto;
        display: block;
        object-fit: cover;
    }

    .page-sv388open__hero-content {
      padding: 20px 15px 40px;
      position: relative;
      z-index: 2;
      max-width: 800px;
    }

    .page-sv388open__hero-title {
      font-size: 3em;
      margin-bottom: 15px;
      color: var(--page-sv388open-secondary-color);
    }

    .page-sv388open__hero-description {
      font-size: 1.2em;
      margin-bottom: 30px;
      color: #ccc;
    }

    .page-sv388open__button {
      display: inline-block;
      background-color: var(--page-sv388open-primary-color);
      color: var(--page-sv388open-text-light);
      padding: 12px 25px;
      border-radius: 5px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease, transform 0.2s ease;
      border: none;
      cursor: pointer;
    }

    .page-sv388open__button:hover {
      background-color: #d63f1e;
      transform: translateY(-2px);
    }

    .page-sv388open__button--secondary {
      background-color: var(--page-sv388open-accent-color);
    }

    .page-sv388open__button--secondary:hover {
      background-color: #449d48;
    }

    /* Floating Button */
    .page-sv388open__floating-button {
      position: fixed;
      bottom: 20px;
      right: 20px;
      z-index: 1000;
      background-color: var(--page-sv388open-primary-color);
      color: var(--page-sv388open-text-light);
      padding: 15px 25px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
      transition: background-color 0.3s ease, transform 0.2s ease;
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.1em;
    }

    .page-sv388open__floating-button:hover {
      background-color: #d63f1e;
      transform: translateY(-3px);
    }

    .page-sv388open__floating-button::before {
      content: '🎁'; /* Emoji for promotion */
      font-size: 1.2em;
    }

    /* Game Categories */
    .page-sv388open__game-categories {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-sv388open__game-card {
      background-color: var(--page-sv388open-text-light);
      border-radius: 10px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
      overflow: hidden;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: center;
      padding-bottom: 20px;
      display: flex;
      flex-direction: column;
      align-items: center;
    }

    .page-sv388open__game-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 15px rgba(0, 0, 0, 0.15);
    }

    .page-sv388open__game-card-image-wrapper {
        width: 100%;
        max-width: 100%;
        overflow: hidden;
        box-sizing: border-box;
        display: flex;
        justify-content: center;
        align-items: center;
        margin-bottom: 15px;
    }

    .page-sv388open__game-card-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
    }

    .page-sv388open__game-card-title {
      font-size: 1.5em;
      color: var(--page-sv388open-primary-color);
      margin-top: 15px;
      margin-bottom: 10px;
      padding: 0 15px;
    }

    .page-sv388open__game-card-description {
      font-size: 0.95em;
      color: #666;
      padding: 0 15px;
    }

    /* Game Providers */
    .page-sv388open__providers-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 20px;
      margin-top: 30px;
    }

    .page-sv388open__provider-item {
      background-color: var(--page-sv388open-text-light);
      border-radius: 8px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
      padding: 15px;
      transition: transform 0.2s ease;
      display: flex;
      justify-content: center;
      align-items: center;
      min-height: 100px;
    }

    .page-sv388open__provider-item:hover {
      transform: translateY(-3px);
    }
    
    .page-sv388open__provider-logo {
      max-width: 100%;
      height: auto;
      max-height: 80px; /* Limit height for uniform look */
      object-fit: contain;
      display: block;
    }

    /* Why Choose Us Section */
    .page-sv388open__features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 30px;
    }

    .page-sv388open__feature-item {
      background-color: var(--page-sv388open-text-light);
      border-radius: 10px;
      padding: 30px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
      text-align: center;
    }

    .page-sv388open__feature-icon-wrapper {
        width: 100%;
        max-width: 100%;
        overflow: hidden;
        box-sizing: border-box;
        display: flex;
        justify-content: center;
        align-items: center;
        margin-bottom: 20px;
    }

    .page-sv388open__feature-icon {
      width: 80px;
      height: 80px;
      object-fit: contain;
      margin-bottom: 20px;
      display: block;
    }

    .page-sv388open__feature-title {
      font-size: 1.3em;
      color: var(--page-sv388open-primary-color);
      margin-bottom: 10px;
    }

    .page-sv388open__feature-description {
      color: #555;
    }

    /* Payment Methods */
    .page-sv388open__payment-methods-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
      gap: 20px;
      margin-top: 30px;
    }

    .page-sv388open__payment-item {
      background-color: var(--page-sv388open-text-light);
      border-radius: 8px;
      box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
      padding: 15px;
      transition: transform 0.2s ease;
      display: flex;
      justify-content: center;
      align-items: center;
      min-height: 80px;
    }

    .page-sv388open__payment-item:hover {
      transform: translateY(-3px);
    }
    
    .page-sv388open__payment-logo {
      max-width: 100%;
      height: auto;
      max-height: 60px;
      object-fit: contain;
      display: block;
    }

    /* FAQ Section */
    .page-sv388open__faq-list {
      margin-top: 30px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
      text-align: left;
    }

    .page-sv388open__faq-item {
      background-color: var(--page-sv388open-text-light);
      border: 1px solid var(--page-sv388open-border-color);
      border-radius: 8px;
      margin-bottom: 15px;
      overflow: hidden;
    }

    .page-sv388open__faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 20px;
      cursor: pointer;
      background-color: #f9f9f9;
      border-bottom: 1px solid var(--page-sv388open-border-color);
      transition: background-color 0.3s ease;
      user-select: none;
    }

    .page-sv388open__faq-question h3 {
      margin: 0;
      font-size: 1.1em;
      color: var(--page-sv388open-primary-color);
      pointer-events: none; /* Prevent h3 from blocking click */
    }

    .page-sv388open__faq-question:hover {
      background-color: #f0f0f0;
    }

    .page-sv388open__faq-toggle {
      font-size: 1.5em;
      font-weight: bold;
      color: var(--page-sv388open-primary-color);
      transition: transform 0.3s ease;
      pointer-events: none; /* Prevent toggle from blocking click */
    }

    .page-sv388open__faq-item.active .page-sv388open__faq-toggle {
      transform: rotate(45deg); /* Change + to X or similar */
      content: '−'; /* Change to minus */
    }

    .page-sv388open__faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 15px;
      opacity: 0;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      color: #555;
    }

    .page-sv388open__faq-item.active .page-sv388open__faq-answer {
      max-height: 2000px !important; /* Sufficiently large */
      padding: 20px 15px !important;
      opacity: 1;
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .page-sv388open__hero-section {
        padding-top: 10px; /* Mobile header adjustment */
      }
      .page-sv388open__hero-title {
        font-size: 2em;
      }
      .page-sv388open__hero-description {
        font-size: 1em;
      }
      .page-sv388open__section-title {
        font-size: 2em;
      }
      .page-sv388open__game-categories,
      .page-sv388open__providers-grid,
      .page-sv388open__features-grid,
      .page-sv388open__payment-methods-grid {
        grid-template-columns: 1fr;
      }
      .page-sv388open__floating-button {
        bottom: 15px;
        right: 15px;
        padding: 12px 20px;
        font-size: 1em;
      }
      .page-sv388open__faq-question h3 {
        font-size: 1em;
      }
      .page-sv388open__game-card-image-wrapper img,
      .page-sv388open__hero-image-wrapper img,
      .page-sv388open__provider-item img,
      .page-sv388open__feature-icon-wrapper img,
      .page-sv388open__payment-item img {
          max-width: 100% !important;
          height: auto !important;
      }
      .page-sv388open__game-card-image {
        height: 180px;
      }
      .page-sv388open__feature-icon {
        width: 60px;
        height: 60px;
      }
    }

    @media (max-width: 480px) {
      .page-sv388open__hero-title {
        font-size: 1.8em;
      }
      .page-sv388open__hero-description {
        font-size: 0.9em;
      }
      .page-sv388open__section-title {
        font-size: 1.8em;
      }
      .page-sv388open__button {
        padding: 10px 20px;
        font-size: 1em;
      }
    }