:root {
        --page-vip66-primary-color: #e44d26; /* Cam đỏ */
        --page-vip66-secondary-color: #ffb300; /* Vàng cam */
        --page-vip66-dark-bg: #1a1a1a; /* Nền tối */
        --page-vip66-light-text: #ffffff; /* Chữ sáng */
        --page-vip66-gray-text: #cccccc; /* Chữ xám nhạt */
        --page-vip66-card-bg: #282828; /* Nền thẻ */
        --page-vip66-button-hover: #ff7043; /* Hover nút */
        --page-vip66-border-color: #333333; /* Màu viền */
    }

    /* Đảm bảo nội dung chính bắt đầu sau vùng an toàn cho header/menu nổi */
    .page-content.page-vip66 {
        padding-top: 160px; /* Vùng an toàn 160px cho menu nổi */
        background-color: var(--page-vip66-dark-bg);
        color: var(--page-vip66-light-text);
        font-family: 'Arial', sans-serif;
        line-height: 1.6;
        overflow-x: hidden; /* Ngăn chặn scroll ngang */
    }

    .page-vip66-hero {
        text-align: center;
        padding: 20px 0;
        background: linear-gradient(135deg, var(--page-vip66-dark-bg) 0%, #333333 100%);
        margin-bottom: 30px;
    }

    .page-vip66-hero-image-wrapper {
        display: flex;
        justify-content: center;
        align-items: center;
        max-width: 100%;
        margin: 0 auto 20px auto;
        border-radius: 10px;
        overflow: hidden;
    }

    .page-vip66-hero-image {
        max-width: 100%;
        height: auto;
        display: block;
        border-radius: 10px;
    }

    .page-vip66-title {
        font-size: 2.2em;
        color: var(--page-vip66-primary-color);
        margin-bottom: 10px;
        text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    }

    .page-vip66-subtitle {
        font-size: 1.1em;
        color: var(--page-vip66-gray-text);
        margin-bottom: 25px;
    }

    .page-vip66-cta-button {
        display: inline-block;
        background-color: var(--page-vip66-primary-color);
        color: var(--page-vip66-light-text);
        padding: 12px 25px;
        border-radius: 30px;
        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-vip66-cta-button:hover {
        background-color: var(--page-vip66-button-hover);
        transform: translateY(-2px);
    }

    .page-vip66-cta-button.large {
        padding: 15px 35px;
        font-size: 1.2em;
    }

    .page-vip66-floating-button {
        position: fixed;
        bottom: 20px;
        left: 50%;
        transform: translateX(-50%);
        z-index: 1000;
        background: linear-gradient(90deg, var(--page-vip66-primary-color) 0%, var(--page-vip66-secondary-color) 100%);
        border-radius: 50px;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.4);
        animation: pulse 1.5s infinite;
    }

    .page-vip66-floating-button a {
        display: block;
        color: var(--page-vip66-light-text);
        text-decoration: none;
        padding: 12px 25px;
        font-weight: bold;
        font-size: 1.05em;
        text-align: center;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: 90vw; /* Giới hạn chiều rộng trên di động */
    }

    @keyframes pulse {
        0% { transform: translateX(-50%) scale(1); }
        50% { transform: translateX(-50%) scale(1.03); }
        100% { transform: translateX(-50%) scale(1); }
    }

    .page-vip66-section-title {
        font-size: 1.8em;
        color: var(--page-vip66-secondary-color);
        text-align: center;
        margin-bottom: 30px;
        padding-top: 20px;
        border-bottom: 2px solid var(--page-vip66-primary-color);
        padding-bottom: 10px;
        max-width: 90%;
        margin-left: auto;
        margin-right: auto;
    }

    .page-vip66-introduction,
    .page-vip66-game-categories,
    .page-vip66-providers,
    .page-vip66-benefits,
    .page-vip66-cta-final {
        padding: 20px 15px;
        max-width: 1200px;
        margin: 0 auto;
    }

    .page-vip66-introduction p {
        margin-bottom: 15px;
        font-size: 1.05em;
        color: var(--page-vip66-gray-text);
        text-align: justify;
    }

    .page-vip66-introduction strong {
        color: var(--page-vip66-primary-color);
    }

    .page-vip66-game-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 20px;
        justify-content: center;
    }

    .page-vip66-game-card {
        background-color: var(--page-vip66-card-bg);
        border-radius: 10px;
        padding: 15px;
        text-align: center;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
        transition: transform 0.2s ease, box-shadow 0.2s ease;
        border: 1px solid var(--page-vip66-border-color);
    }

    .page-vip66-game-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
    }

    .page-vip66-game-icon {
        width: 70px;
        height: 70px;
        object-fit: contain;
        margin-bottom: 10px;
        border-radius: 5px;
    }

    .page-vip66-game-card-title {
        font-size: 1.2em;
        margin-bottom: 8px;
        color: var(--page-vip66-light-text);
    }

    .page-vip66-game-card-title a {
        color: var(--page-vip66-secondary-color);
        text-decoration: none;
        transition: color 0.2s ease;
    }

    .page-vip66-game-card-title a:hover {
        color: var(--page-vip66-primary-color);
    }

    .page-vip66-game-card p {
        font-size: 0.9em;
        color: var(--page-vip66-gray-text);
    }

    .page-vip66-providers p {
        text-align: center;
        margin-bottom: 20px;
        color: var(--page-vip66-gray-text);
    }

    .page-vip66-provider-logos {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
        gap: 15px;
        justify-items: center;
        align-items: center;
    }

    .page-vip66-provider-logo {
        width: 100%;
        max-width: 100px;
        height: auto;
        object-fit: contain;
        filter: grayscale(80%) brightness(120%);
        transition: filter 0.3s ease;
    }

    .page-vip66-provider-logo:hover {
        filter: grayscale(0%) brightness(100%);
    }

    .page-vip66-benefits p {
        text-align: center;
        margin-bottom: 20px;
        color: var(--page-vip66-gray-text);
    }

    .page-vip66-benefit-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 25px;
    }

    .page-vip66-benefit-item {
        background-color: var(--page-vip66-card-bg);
        border-radius: 10px;
        padding: 20px;
        text-align: center;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
        border: 1px solid var(--page-vip66-border-color);
    }

    .page-vip66-benefit-icon {
        width: 60px;
        height: 60px;
        object-fit: contain;
        margin-bottom: 15px;
    }

    .page-vip66-benefit-item h3 {
        font-size: 1.3em;
        color: var(--page-vip66-primary-color);
        margin-bottom: 10px;
    }

    .page-vip66-benefit-item p {
        font-size: 0.95em;
        color: var(--page-vip66-gray-text);
        text-align: center;
    }

    .page-vip66-cta-final {
        text-align: center;
        padding: 40px 15px;
        background: linear-gradient(90deg, #333333 0%, var(--page-vip66-dark-bg) 100%);
        border-radius: 10px;
        margin-top: 40px;
        margin-bottom: 60px;
    }

    .page-vip66-cta-final p {
        font-size: 1.1em;
        margin-bottom: 30px;
        color: var(--page-vip66-gray-text);
    }

    /* Responsive adjustments */
    @media (max-width: 768px) {
        .page-content.page-vip66 {
            padding-top: 120px; /* Giảm vùng an toàn cho màn hình nhỏ hơn */
        }
        .page-vip66-title {
            font-size: 1.8em;
        }
        .page-vip66-subtitle {
            font-size: 1em;
        }
        .page-vip66-section-title {
            font-size: 1.5em;
        }
        .page-vip66-game-grid {
            grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        }
        .page-vip66-provider-logos {
            grid-template-columns: repeat(auto-fit, minmax(60px, 1fr));
        }
        .page-vip66-floating-button a {
            padding: 10px 18px;
            font-size: 0.9em;
        }
    }

    @media (max-width: 480px) {
        .page-content.page-vip66 {
            padding-top: 100px;
        }
        .page-vip66-title {
            font-size: 1.6em;
        }
        .page-vip66-cta-button {
            padding: 10px 20px;
            font-size: 1em;
        }
        .page-vip66-section-title {
            font-size: 1.3em;
        }
        .page-vip66-game-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .page-vip66-benefit-grid {
            grid-template-columns: 1fr;
        }
        .page-vip66-floating-button {
            bottom: 15px;
        }
    }