:root {
      --page-ga65ga-primary-color: #e44d26; /* Cam đỏ */
      --page-ga65ga-secondary-color: #333333; /* Xám đậm */
      --page-ga65ga-accent-color: #f7b32b; /* Vàng cam */
      --page-ga65ga-text-color: #ffffff; /* Trắng */
      --page-ga65ga-bg-color: #1a1a1a; /* Đen nhạt */
      --page-ga65ga-border-color: #444444; /* Xám viền */
      --page-ga65ga-gradient-start: #3a1c71; /* Tím */
      --page-ga65ga-gradient-end: #d76d77; /* Hồng */
    }

    .page-ga65ga {
      font-family: 'Arial', sans-serif;
      color: var(--page-ga65ga-text-color);
      background-color: var(--page-ga65ga-bg-color);
      line-height: 1.6;
      padding-top: 10px; /* Adjust for fixed header */
    }

    .page-ga65ga__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
    }

    .page-ga65ga__section {
      padding: 60px 20px;
      margin-bottom: 20px;
      background-color: var(--page-ga65ga-secondary-color);
      border-radius: 10px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      text-align: center;
    }
    
    .page-ga65ga__section--dark {
        background-color: #222222;
    }

    .page-ga65ga__section-title {
      font-size: 2.8em;
      color: var(--page-ga65ga-primary-color);
      margin-bottom: 30px;
      font-weight: bold;
      text-transform: uppercase;
      letter-spacing: 1px;
    }
    
    .page-ga65ga__section-title span {
        color: var(--page-ga65ga-accent-color);
    }

    .page-ga65ga__hero-section {
      background: linear-gradient(135deg, var(--page-ga65ga-gradient-start) 0%, var(--page-ga65ga-gradient-end) 100%);
      padding: 100px 20px;
      text-align: center;
      position: relative;
      overflow: hidden;
      border-radius: 0;
    }

    .page-ga65ga__hero-background {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.3;
      z-index: 0;
      max-width: 100%;
      box-sizing: border-box;
    }

    .page-ga65ga__hero-content {
      position: relative;
      z-index: 1;
      max-width: 900px;
      margin: 0 auto;
    }

    .page-ga65ga__hero-title {
      font-size: 4em;
      color: var(--page-ga65ga-text-color);
      margin-bottom: 20px;
      text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.7);
      line-height: 1.2;
    }
    
    .page-ga65ga__hero-title span {
        color: var(--page-ga65ga-accent-color);
    }

    .page-ga65ga__hero-description {
      font-size: 1.5em;
      color: #e0e0e0;
      margin-bottom: 40px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    .page-ga65ga__call-to-action-button {
      display: inline-block;
      background-color: var(--page-ga65ga-primary-color);
      color: var(--page-ga65ga-text-color);
      padding: 15px 30px;
      border-radius: 50px;
      text-decoration: none;
      font-size: 1.2em;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.3s ease;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
    }

    .page-ga65ga__call-to-action-button:hover {
      background-color: #ff6a40;
      transform: translateY(-3px);
    }

    .page-ga65ga__floating-buttons {
      position: fixed;
      top: 50%;
      right: 20px;
      transform: translateY(-50%);
      z-index: 1000;
      display: flex;
      flex-direction: column;
      gap: 15px;
    }

    .page-ga65ga__floating-button {
      background-color: var(--page-ga65ga-accent-color);
      color: var(--page-ga65ga-secondary-color);
      padding: 12px 25px;
      border-radius: 30px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      text-align: center;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
      transition: background-color 0.3s ease, transform 0.3s ease;
    }

    .page-ga65ga__floating-button:hover {
      background-color: #ffd666;
      transform: scale(1.05);
    }
    
    .page-ga65ga__about-content {
        display: flex;
        flex-direction: column;
        gap: 25px;
        text-align: left;
        max-width: 800px;
        margin: 0 auto;
        font-size: 1.1em;
    }

    .page-ga65ga__about-content p {
        margin-bottom: 15px;
    }

    .page-ga65ga__product-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 30px;
      margin-top: 40px;
    }

    .page-ga65ga__product-card {
      background-color: #2a2a2a;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      text-align: center;
    }

    .page-ga65ga__product-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.6);
    }

    .page-ga65ga__product-image {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
      max-width: 100%;
      box-sizing: border-box;
    }

    .page-ga65ga__product-info {
      padding: 20px;
    }

    .page-ga65ga__product-title {
      font-size: 1.5em;
      color: var(--page-ga65ga-accent-color);
      margin-bottom: 10px;
      font-weight: bold;
    }

    .page-ga65ga__product-description {
      font-size: 0.95em;
      color: #cccccc;
    }

    .page-ga65ga__promo-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 25px;
        margin-top: 40px;
    }

    .page-ga65ga__promo-card {
        background-color: #2a2a2a;
        border-radius: 10px;
        overflow: hidden;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
        text-align: left;
        padding: 25px;
        transition: transform 0.3s ease;
        border-left: 5px solid var(--page-ga65ga-primary-color);
    }

    .page-ga65ga__promo-card:hover {
        transform: translateY(-5px);
    }

    .page-ga65ga__promo-title {
        font-size: 1.6em;
        color: var(--page-ga65ga-primary-color);
        margin-bottom: 10px;
        font-weight: bold;
    }

    .page-ga65ga__promo-description {
        font-size: 1em;
        color: #cccccc;
        margin-bottom: 15px;
    }

    .page-ga65ga__promo-image {
        width: 100%;
        height: 250px;
        object-fit: cover;
        border-radius: 8px;
        margin-bottom: 15px;
        max-width: 100%;
        box-sizing: border-box;
    }
    
    .page-ga65ga__why-choose-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 30px;
        margin-top: 40px;
    }

    .page-ga65ga__why-choose-item {
        background-color: #2a2a2a;
        border-radius: 10px;
        padding: 30px;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
        text-align: center;
        position: relative;
        overflow: hidden;
        transition: background-color 0.3s ease;
    }
    
    .page-ga65ga__why-choose-item:hover {
        background-color: #383838;
    }

    .page-ga65ga__why-choose-icon {
        width: 80px;
        height: 80px;
        margin-bottom: 20px;
        display: inline-block;
        max-width: 100%;
        box-sizing: border-box;
    }

    .page-ga65ga__why-choose-title {
        font-size: 1.8em;
        color: var(--page-ga65ga-accent-color);
        margin-bottom: 15px;
        font-weight: bold;
    }

    .page-ga65ga__why-choose-description {
        font-size: 1em;
        color: #cccccc;
    }

    .page-ga65ga__payment-providers-wrapper {
        margin-top: 60px;
    }

    .page-ga65ga__payment-providers-title {
        font-size: 2em;
        color: var(--page-ga65ga-primary-color);
        margin-bottom: 30px;
        font-weight: bold;
    }

    .page-ga65ga__payment-grid,
    .page-ga65ga__provider-grid {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 25px;
        margin-top: 20px;
    }

    .page-ga65ga__payment-item,
    .page-ga65ga__provider-item {
        background-color: #2a2a2a;
        border-radius: 8px;
        padding: 15px 25px;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        font-size: 1.1em;
        color: #e0e0e0;
        font-weight: bold;
        transition: background-color 0.3s ease;
    }
    
    .page-ga65ga__payment-item:hover,
    .page-ga65ga__provider-item:hover {
        background-color: #383838;
    }

    .page-ga65ga__faq-section {
        text-align: left;
    }

    .page-ga65ga__faq-list {
        list-style: none;
        padding: 0;
        max-width: 800px;
        margin: 0 auto;
    }

    .page-ga65ga__faq-item {
        background-color: #2a2a2a;
        margin-bottom: 15px;
        border-radius: 8px;
        overflow: hidden;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    }

    .page-ga65ga__faq-question {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 20px 25px;
        cursor: pointer;
        background-color: var(--page-ga65ga-secondary-color);
        border-bottom: 1px solid var(--page-ga65ga-border-color);
        transition: background-color 0.3s ease;
        user-select: none;
    }

    .page-ga65ga__faq-question:hover {
        background-color: #383838;
    }

    .page-ga65ga__faq-question h3 {
        margin: 0;
        font-size: 1.3em;
        color: var(--page-ga65ga-accent-color);
        pointer-events: none; /* Prevent h3 from interfering with click event */
    }

    .page-ga65ga__faq-toggle {
        font-size: 1.8em;
        font-weight: bold;
        color: var(--page-ga65ga-primary-color);
        transition: transform 0.3s ease;
        pointer-events: none; /* Prevent toggle icon from interfering with click event */
    }

    .page-ga65ga__faq-item.active .page-ga65ga__faq-toggle {
        transform: rotate(45deg); /* Changes + to x */
    }

    .page-ga65ga__faq-answer {
        max-height: 0;
        overflow: hidden;
        padding: 0 25px;
        transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
        color: #cccccc;
        opacity: 0;
    }

    .page-ga65ga__faq-item.active .page-ga65ga__faq-answer {
        max-height: 2000px !important; /* Sufficiently large to contain content */
        padding: 20px 25px !important;
        opacity: 1;
    }
    
    .page-ga65ga__final-cta {
        background: linear-gradient(90deg, var(--page-ga65ga-primary-color) 0%, var(--page-ga65ga-accent-color) 100%);
        padding: 80px 20px;
        text-align: center;
        border-radius: 10px;
    }

    .page-ga65ga__final-cta-title {
        font-size: 3em;
        color: var(--page-ga65ga-text-color);
        margin-bottom: 20px;
        text-shadow: 1px 1px 5px rgba(0,0,0,0.5);
    }

    .page-ga65ga__final-cta-description {
        font-size: 1.4em;
        color: #f0f0f0;
        margin-bottom: 40px;
        max-width: 700px;
        margin-left: auto;
        margin-right: auto;
    }
    
    /* Responsive adjustments */
    @media (max-width: 1024px) {
      .page-ga65ga__hero-title {
        font-size: 3.5em;
      }
      .page-ga65ga__hero-description {
        font-size: 1.3em;
      }
      .page-ga65ga__section-title {
        font-size: 2.4em;
      }
    }

    @media (max-width: 768px) {
      .page-ga65ga__container {
        padding: 15px;
      }
      .page-ga65ga__section {
        padding: 40px 15px;
      }
      .page-ga65ga__section-title {
        font-size: 2em;
        margin-bottom: 25px;
      }
      .page-ga65ga__hero-section {
        padding: 80px 15px;
      }
      .page-ga65ga__hero-title {
        font-size: 2.5em;
      }
      .page-ga65ga__hero-description {
        font-size: 1.1em;
      }
      .page-ga65ga__call-to-action-button {
        padding: 12px 25px;
        font-size: 1.1em;
      }
      .page-ga65ga__floating-buttons {
        right: 10px;
        gap: 10px;
      }
      .page-ga65ga__floating-button {
        padding: 10px 20px;
        font-size: 1em;
      }
      
      .page-ga65ga__about-content {
          font-size: 1em;
      }

      .page-ga65ga__product-grid,
      .page-ga65ga__promo-grid,
      .page-ga65ga__why-choose-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }
      
      .page-ga65ga__product-card,
      .page-ga65ga__promo-card,
      .page-ga65ga__why-choose-item {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding: 20px;
      }
      
      .page-ga65ga__payment-grid,
      .page-ga65ga__provider-grid {
          gap: 15px;
      }
      .page-ga65ga__payment-item,
      .page-ga65ga__provider-item {
          padding: 12px 20px;
          font-size: 1em;
          max-width: 100% !important;
          width: 100% !important;
          box-sizing: border-box !important;
          word-wrap: break-word !important;
          overflow-wrap: break-word !important;
      }

      .page-ga65ga__faq-question {
          padding: 15px 20px;
      }
      .page-ga65ga__faq-question h3 {
          font-size: 1.1em;
      }
      .page-ga65ga__faq-answer {
          padding: 0 20px;
      }
      .page-ga65ga__faq-item.active .page-ga65ga__faq-answer {
          padding: 15px 20px !important;
      }
      
      .page-ga65ga__final-cta {
          padding: 50px 15px;
      }
      .page-ga65ga__final-cta-title {
          font-size: 2.2em;
      }
      .page-ga65ga__final-cta-description {
          font-size: 1.1em;
      }
    }

    @media (max-width: 480px) {
        .page-ga65ga__hero-title {
            font-size: 2em;
        }
        .page-ga65ga__hero-description {
            font-size: 1em;
        }
        .page-ga65ga__section-title {
            font-size: 1.8em;
        }
        .page-ga65ga__floating-buttons {
            right: 5px;
            top: unset;
            bottom: 20px;
            transform: none;
            flex-direction: row;
            width: calc(100% - 10px);
            justify-content: space-around;
        }
        .page-ga65ga__floating-button {
            flex-grow: 1;
            margin: 0 5px;
        }
        .page-ga65ga__product-title {
            font-size: 1.3em;
        }
        .page-ga65ga__promo-title {
            font-size: 1.4em;
        }
        .page-ga65ga__why-choose-title {
            font-size: 1.6em;
        }
        .page-ga65ga__payment-item,
        .page-ga65ga__provider-item {
            font-size: 0.9em;
            padding: 10px 15px;
        }
        .page-ga65ga__faq-question h3 {
            font-size: 1em;
        }
        .page-ga65ga__final-cta-title {
            font-size: 1.8em;
        }
        .page-ga65ga__final-cta-description {
            font-size: 0.95em;
        }
    }