/* Tổng quan */
    :root {
        --page-nohu52-primary-color: #ffcc00; /* Vàng rực */
        --page-nohu52-secondary-color: #cc0000; /* Đỏ đậm */
        --page-nohu52-accent-color: #0066cc; /* Xanh dương */
        --page-nohu52-dark-bg: #1a1a1a; /* Nền tối */
        --page-nohu52-light-text: #ffffff; /* Chữ trắng */
        --page-nohu52-dark-text: #333333; /* Chữ đen xám */
        --page-nohu52-gray-text: #cccccc; /* Chữ xám */
    }

    .page-nohu52 {
        font-family: 'Arial', sans-serif;
        background-color: var(--page-nohu52-dark-bg);
        color: var(--page-nohu52-light-text);
        line-height: 1.6;
        padding-top: 150px; /* Vùng an toàn cho menu nổi */
        position: relative;
    }

    .page-nohu52 a {
        color: var(--page-nohu52-primary-color);
        text-decoration: none;
        transition: color 0.3s ease;
    }

    .page-nohu52 a:hover {
        color: var(--page-nohu52-secondary-color);
    }

    .page-nohu52 .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 1rem;
    }

    .page-nohu52 .section-title {
        text-align: center;
        color: var(--page-nohu52-primary-color);
        font-size: 2.2rem;
        margin-bottom: 2rem;
        position: relative;
        padding-bottom: 0.5rem;
    }

    .page-nohu52 .section-title::after {
        content: '';
        position: absolute;
        left: 50%;
        bottom: 0;
        transform: translateX(-50%);
        width: 80px;
        height: 4px;
        background-color: var(--page-nohu52-secondary-color);
        border-radius: 2px;
    }

    /* Banner chính */
    .page-nohu52-hero {
        text-align: center;
        padding: 0;
        margin-bottom: 2rem;
        position: relative;
        overflow: hidden; /* Đảm bảo hình ảnh không tràn ra ngoài */
    }

    .page-nohu52-hero img {
        max-width: 100%;
        height: auto;
        display: block;
        margin: 0 auto;
        object-fit: contain; /* Giữ tỷ lệ gốc của hình ảnh */
        border-radius: 8px;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
    }

    .page-nohu52-hero .hero-content {
        padding: 1rem;
        background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0) 100%);
        margin-top: -50px; /* Kéo lên một chút để hòa trộn với banner */
        position: relative;
        z-index: 1;
    }

    .page-nohu52-hero h1 {
        color: var(--page-nohu52-primary-color);
        font-size: 2.8rem;
        margin-bottom: 0.5rem;
        text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    }

    .page-nohu52-hero p {
        font-size: 1.1rem;
        color: var(--page-nohu52-light-text);
        max-width: 800px;
        margin: 0 auto 1.5rem auto;
    }

    /* Nút đăng nhập nổi */
    .page-nohu52-floating-login {
        position: fixed;
        bottom: 20px;
        right: 20px;
        z-index: 1000;
    }

    .page-nohu52-floating-login .btn-login {
        background: linear-gradient(45deg, var(--page-nohu52-primary-color), var(--page-nohu52-secondary-color));
        color: var(--page-nohu52-light-text);
        padding: 15px 25px;
        border-radius: 50px;
        font-size: 1.2rem;
        font-weight: bold;
        text-transform: uppercase;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.4);
        transition: all 0.3s ease;
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .page-nohu52-floating-login .btn-login:hover {
        transform: translateY(-3px);
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.6);
    }

    .page-nohu52-floating-login .btn-login i {
        font-size: 1.5rem;
    }

    /* Giới thiệu */
    .page-nohu52-intro p {
        text-align: center;
        font-size: 1.1rem;
        margin-bottom: 2rem;
        color: var(--page-nohu52-gray-text);
    }

    /* Tại sao chọn */
    .page-nohu52-why-choose .features-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 2rem;
        margin-top: 2rem;
    }

    .page-nohu52-why-choose .feature-item {
        background-color: #2a2a2a;
        padding: 1.5rem;
        border-radius: 10px;
        text-align: center;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
        transition: transform 0.3s ease;
    }

    .page-nohu52-why-choose .feature-item:hover {
        transform: translateY(-5px);
    }

    .page-nohu52-why-choose .feature-item i {
        font-size: 3rem;
        color: var(--page-nohu52-primary-color);
        margin-bottom: 1rem;
    }

    .page-nohu52-why-choose .feature-item h3 {
        color: var(--page-nohu52-primary-color);
        font-size: 1.5rem;
        margin-bottom: 0.8rem;
    }

    .page-nohu52-why-choose .feature-item p {
        color: var(--page-nohu52-gray-text);
    }

    /* Trò chơi phổ biến */
    .page-nohu52-games-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 1rem;
        margin-top: 2rem;
    }

    .page-nohu52-game-card {
        background-color: #2a2a2a;
        border-radius: 8px;
        overflow: hidden;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
        transition: transform 0.3s ease;
        text-align: center;
    }

    .page-nohu52-game-card:hover {
        transform: translateY(-5px);
    }

    .page-nohu52-game-card img {
        width: 100%;
        height: 120px;
        object-fit: cover;
        display: block;
    }

    .page-nohu52-game-card h4 {
        color: var(--page-nohu52-light-text);
        font-size: 1.1rem;
        padding: 0.75rem 0.5rem;
        background-color: #3a3a3a;
    }
    
    .page-nohu52-game-card h4 a {
        color: var(--page-nohu52-light-text);
    }
    .page-nohu52-game-card h4 a:hover {
        color: var(--page-nohu52-primary-color);
    }

    /* Nhà cung cấp game */
    .page-nohu52-providers-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
        gap: 1rem;
        margin-top: 2rem;
    }

    .page-nohu52-provider-item {
        background-color: #2a2a2a;
        padding: 10px;
        border-radius: 8px;
        text-align: center;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    }

    .page-nohu52-provider-item img {
        max-width: 100%;
        height: 50px;
        object-fit: contain;
        filter: grayscale(100%);
        transition: filter 0.3s ease;
    }

    .page-nohu52-provider-item:hover img {
        filter: grayscale(0%);
    }

    /* Hướng dẫn */
    .page-nohu52-how-to .steps-list {
        list-style: none;
        padding: 0;
        margin: 2rem 0;
    }

    .page-nohu52-how-to .steps-list li {
        background-color: #2a2a2a;
        margin-bottom: 1rem;
        padding: 1rem 1.5rem;
        border-radius: 8px;
        display: flex;
        align-items: center;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    }

    .page-nohu52-how-to .steps-list li .step-number {
        background-color: var(--page-nohu52-secondary-color);
        color: var(--page-nohu52-light-text);
        width: 35px;
        height: 35px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: bold;
        font-size: 1.2rem;
        flex-shrink: 0;
        margin-right: 1rem;
    }

    .page-nohu52-how-to .steps-list li p {
        margin: 0;
        color: var(--page-nohu52-light-text);
        font-size: 1.1rem;
    }

    .page-nohu52-how-to .steps-list li strong {
        color: var(--page-nohu52-primary-color);
    }

    /* Ưu đãi & Khuyến mãi */
    .page-nohu52-promotions .promo-cards {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 1.5rem;
        margin-top: 2rem;
    }

    .page-nohu52-promo-card {
        background-color: #2a2a2a;
        border-radius: 10px;
        overflow: hidden;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
        display: flex;
        flex-direction: column;
    }

    .page-nohu52-promo-card img {
        width: 100%;
        height: 180px;
        object-fit: cover;
    }

    .page-nohu52-promo-card .promo-content {
        padding: 1.5rem;
        flex-grow: 1;
    }

    .page-nohu52-promo-card h3 {
        color: var(--page-nohu52-primary-color);
        font-size: 1.4rem;
        margin-bottom: 0.8rem;
    }

    .page-nohu52-promo-card p {
        color: var(--page-nohu52-gray-text);
        margin-bottom: 1rem;
    }

    .page-nohu52-promo-card .btn-detail {
        display: inline-block;
        background-color: var(--page-nohu52-accent-color);
        color: var(--page-nohu52-light-text);
        padding: 10px 20px;
        border-radius: 5px;
        font-weight: bold;
        transition: background-color 0.3s ease;
    }

    .page-nohu52-promo-card .btn-detail:hover {
        background-color: #004d99;
    }

    /* Hỗ trợ khách hàng */
    .page-nohu52-support .contact-info {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 1.5rem;
        margin-top: 2rem;
    }

    .page-nohu52-support .contact-item {
        background-color: #2a2a2a;
        padding: 1.5rem;
        border-radius: 10px;
        text-align: center;
        width: 280px;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    }

    .page-nohu52-support .contact-item i {
        font-size: 2.5rem;
        color: var(--page-nohu52-primary-color);
        margin-bottom: 1rem;
    }

    .page-nohu52-support .contact-item h3 {
        color: var(--page-nohu52-light-text);
        font-size: 1.3rem;
        margin-bottom: 0.5rem;
    }

    .page-nohu52-support .contact-item p {
        color: var(--page-nohu52-gray-text);
    }

    /* Câu hỏi thường gặp */
    .page-nohu52-faq .faq-list {
        margin-top: 2rem;
    }

    .page-nohu52-faq .faq-item {
        background-color: #2a2a2a;
        border-radius: 8px;
        margin-bottom: 1rem;
        overflow: hidden;
    }

    .page-nohu52-faq .faq-question {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 1rem 1.5rem;
        cursor: pointer;
        background-color: #3a3a3a;
        color: var(--page-nohu52-light-text);
        font-weight: bold;
        font-size: 1.1rem;
    }

    .page-nohu52-faq .faq-question i {
        transition: transform 0.3s ease;
    }

    .page-nohu52-faq .faq-answer {
        padding: 0 1.5rem;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.5s ease-out;
        color: var(--page-nohu52-gray-text);
    }

    .page-nohu52-faq .faq-answer p {
        padding-bottom: 1rem;
        margin: 0;
    }

    .page-nohu52-faq .faq-item.active .faq-answer {
        max-height: 200px; /* Điều chỉnh theo nội dung */
        transition: max-height 0.5s ease-in;
    }

    .page-nohu52-faq .faq-item.active .faq-question i {
        transform: rotate(180deg);
    }

    /* Kết luận */
    .page-nohu52-conclusion {
        text-align: center;
        padding: 2rem 0;
        border-top: 1px solid #333;
        margin-top: 3rem;
    }

    .page-nohu52-conclusion p {
        font-size: 1.1rem;
        color: var(--page-nohu52-gray-text);
        margin-bottom: 1.5rem;
    }

    .page-nohu52-conclusion .btn-cta {
        background: linear-gradient(45deg, var(--page-nohu52-primary-color), var(--page-nohu52-secondary-color));
        color: var(--page-nohu52-light-text);
        padding: 15px 30px;
        border-radius: 50px;
        font-size: 1.3rem;
        font-weight: bold;
        text-transform: uppercase;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.4);
        transition: all 0.3s ease;
    }

    .page-nohu52-conclusion .btn-cta:hover {
        transform: translateY(-3px);
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.6);
    }

    /* Responsive */
    @media (max-width: 768px) {
        .page-nohu52 {
            padding-top: 100px; /* Điều chỉnh vùng an toàn cho di động */
        }
        .page-nohu52-hero h1 {
            font-size: 2rem;
        }
        .page-nohu52 .section-title {
            font-size: 1.8rem;
        }
        .page-nohu52-floating-login {
            bottom: 15px;
            right: 15px;
        }
        .page-nohu52-floating-login .btn-login {
            padding: 12px 20px;
            font-size: 1rem;
        }
        .page-nohu52-floating-login .btn-login i {
            font-size: 1.2rem;
        }
        .page-nohu52-games-grid {
            grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        }
        .page-nohu52-game-card img {
            height: 100px;
        }
        .page-nohu52-promo-card img {
            height: 150px;
        }
        .page-nohu52-how-to .steps-list li {
            flex-direction: column;
            text-align: center;
            padding: 1rem;
        }
        .page-nohu52-how-to .steps-list li .step-number {
            margin: 0 auto 1rem auto;
        }
    }

    @media (max-width: 480px) {
        .page-nohu52-hero h1 {
            font-size: 1.8rem;
        }
        .page-nohu52-hero p {
            font-size: 1rem;
        }
        .page-nohu52 .section-title {
            font-size: 1.6rem;
        }
        .page-nohu52-games-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .page-nohu52-providers-grid {
            grid-template-columns: repeat(3, 1fr);
        }
    }