:root {
        --page-app-hm88-2-primary-color: #e60000; /* Đỏ rực */
        --page-app-hm88-2-secondary-color: #ffcc00; /* Vàng đậm */
        --page-app-hm88-2-background-dark: #1a1a1a; /* Nền tối */
        --page-app-hm88-2-text-light: #ffffff; /* Chữ sáng */
        --page-app-hm88-2-text-dark: #333333; /* Chữ tối */
        --page-app-hm88-2-accent-color: #00bfff; /* Xanh dương */
        --page-app-hm88-2-border-color: #444444; /* Màu viền */
    }

    .page-app-hm88-2 {
        font-family: 'Arial', sans-serif;
        color: var(--page-app-hm88-2-text-light);
        background-color: var(--page-app-hm88-2-background-dark);
        line-height: 1.6;
    }

    .page-app-hm88-2__container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 15px;
        box-sizing: border-box;
    }

    .page-app-hm88-2__section {
        padding: 40px 0;
        text-align: center;
    }

    .page-app-hm88-2__section--dark {
        background-color: #222222;
    }

    .page-app-hm88-2__hero-section {
        background: var(--page-app-hm88-2-background-dark);
        padding: 10px 0 60px; /* Small top padding, assuming body has main offset */
        text-align: center;
        position: relative;
        overflow: hidden;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        min-height: 500px;
    }

    .page-app-hm88-2__hero-title {
        font-size: 2.8em;
        color: var(--page-app-hm88-2-primary-color);
        margin-bottom: 15px;
        text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
        font-weight: bold;
    }

    .page-app-hm88-2__hero-subtitle {
        font-size: 1.3em;
        color: var(--page-app-hm88-2-text-light);
        margin-bottom: 30px;
        max-width: 700px;
        margin-left: auto;
        margin-right: auto;
    }

    .page-app-hm88-2__hero-button {
        display: inline-block;
        background-color: var(--page-app-hm88-2-primary-color);
        color: var(--page-app-hm88-2-text-light);
        padding: 15px 30px;
        border-radius: 8px;
        text-decoration: none;
        font-size: 1.1em;
        font-weight: bold;
        transition: background-color 0.3s ease, transform 0.3s ease;
        box-shadow: 0 4px 15px rgba(230, 0, 0, 0.4);
        border: none;
        cursor: pointer;
    }

    .page-app-hm88-2__hero-button:hover {
        background-color: #ff3333;
        transform: translateY(-3px);
    }

    .page-app-hm88-2__hero-image {
        margin-top: 40px;
        width: 100%;
        max-width: 600px;
        height: auto;
        border-radius: 15px;
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.6);
        object-fit: cover;
    }

    .page-app-hm88-2__features-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 30px;
        margin-top: 40px;
    }

    .page-app-hm88-2__feature-item {
        background-color: #2a2a2a;
        padding: 30px;
        border-radius: 12px;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        text-align: left;
        border: 1px solid var(--page-app-hm88-2-border-color);
        box-sizing: border-box;
    }

    .page-app-hm88-2__feature-item:hover {
        transform: translateY(-5px);
        box-shadow: 0 6px 15px rgba(0, 0, 0, 0.4);
    }

    .page-app-hm88-2__feature-icon {
        width: 100%;
        max-width: 250px;
        height: auto;
        margin-bottom: 20px;
        border-radius: 8px;
    }

    .page-app-hm88-2__feature-title {
        font-size: 1.5em;
        color: var(--page-app-hm88-2-secondary-color);
        margin-bottom: 15px;
        font-weight: bold;
    }

    .page-app-hm88-2__feature-description {
        font-size: 1em;
        color: var(--page-app-hm88-2-text-light);
    }

    .page-app-hm88-2__section-title {
        font-size: 2.2em;
        color: var(--page-app-hm88-2-primary-color);
        margin-bottom: 25px;
        font-weight: bold;
        text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.4);
    }

    .page-app-hm88-2__section-subtitle {
        font-size: 1.1em;
        color: var(--page-app-hm88-2-text-light);
        max-width: 800px;
        margin: 0 auto 30px;
    }

    .page-app-hm88-2__image-gallery {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 20px;
        margin-top: 40px;
    }

    .page-app-hm88-2__gallery-item {
        width: 100%;
        max-width: 450px;
        border-radius: 12px;
        overflow: hidden;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
        box-sizing: border-box;
    }

    .page-app-hm88-2__gallery-image {
        width: 100%;
        height: auto;
        display: block;
        object-fit: cover;
    }

    .page-app-hm88-2__cta-section {
        background-color: var(--page-app-hm88-2-primary-color);
        padding: 60px 0;
        text-align: center;
        color: var(--page-app-hm88-2-text-light);
    }

    .page-app-hm88-2__cta-title {
        font-size: 2.5em;
        margin-bottom: 20px;
        font-weight: bold;
    }

    .page-app-hm88-2__cta-description {
        font-size: 1.2em;
        margin-bottom: 30px;
        max-width: 700px;
        margin-left: auto;
        margin-right: auto;
    }

    .page-app-hm88-2__cta-button {
        display: inline-block;
        background-color: var(--page-app-hm88-2-secondary-color);
        color: var(--page-app-hm88-2-background-dark);
        padding: 15px 35px;
        border-radius: 8px;
        text-decoration: none;
        font-size: 1.2em;
        font-weight: bold;
        transition: background-color 0.3s ease, transform 0.3s ease;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
        border: none;
        cursor: pointer;
    }

    .page-app-hm88-2__cta-button:hover {
        background-color: #ffd700;
        transform: translateY(-3px);
    }

    .page-app-hm88-2__faq-section {
        background-color: #222222;
        padding: 60px 0;
    }

    .page-app-hm88-2__faq-title {
        font-size: 2.2em;
        color: var(--page-app-hm88-2-primary-color);
        margin-bottom: 40px;
        text-align: center;
        font-weight: bold;
    }

    .page-app-hm88-2__faq-list {
        max-width: 800px;
        margin: 0 auto;
    }

    .page-app-hm88-2__faq-item {
        background-color: #2a2a2a;
        margin-bottom: 15px;
        border-radius: 8px;
        border: 1px solid var(--page-app-hm88-2-border-color);
        overflow: hidden;
    }

    .page-app-hm88-2__faq-question {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 18px 25px;
        cursor: pointer;
        background-color: #333333;
        color: var(--page-app-hm88-2-text-light);
        font-size: 1.1em;
        font-weight: bold;
        transition: background-color 0.3s ease;
        user-select: none;
    }

    .page-app-hm88-2__faq-question:hover {
        background-color: #444444;
    }

    .page-app-hm88-2__faq-question h3 {
        margin: 0;
        color: var(--page-app-hm88-2-text-light);
        font-size: 1.1em;
        pointer-events: none; /* Prevent h3 from blocking click */
    }

    .page-app-hm88-2__faq-toggle {
        font-size: 1.5em;
        line-height: 1;
        transition: transform 0.3s ease;
        color: var(--page-app-hm88-2-secondary-color);
        pointer-events: none; /* Prevent toggle from blocking click */
    }

    .page-app-hm88-2__faq-item.active .page-app-hm88-2__faq-toggle {
        transform: rotate(45deg);
        color: var(--page-app-hm88-2-primary-color);
    }

    .page-app-hm88-2__faq-answer {
        max-height: 0;
        overflow: hidden;
        padding: 0 25px;
        background-color: #2a2a2a;
        color: #cccccc;
        transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
        opacity: 0;
        text-align: left;
    }

    .page-app-hm88-2__faq-item.active .page-app-hm88-2__faq-answer {
        max-height: 2000px !important; /* Sufficiently large value */
        padding: 20px 25px !important;
        opacity: 1;
    }

    /* Floating buttons for Register/Login */
    .page-app-hm88-2__floating-buttons {
        position: fixed;
        bottom: 20px;
        right: 20px;
        display: flex;
        flex-direction: column;
        gap: 10px;
        z-index: 1000;
    }

    .page-app-hm88-2__floating-button {
        display: block;
        padding: 12px 20px;
        border-radius: 50px;
        font-size: 1em;
        font-weight: bold;
        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: none;
        cursor: pointer;
    }

    .page-app-hm88-2__floating-button:hover {
        transform: translateY(-2px);
        box-shadow: 0 6px 15px rgba(0, 0, 0, 0.4);
    }

    .page-app-hm88-2__floating-button--register {
        background-color: var(--page-app-hm88-2-primary-color);
        color: var(--page-app-hm88-2-text-light);
    }

    .page-app-hm88-2__floating-button--login {
        background-color: var(--page-app-hm88-2-secondary-color);
        color: var(--page-app-hm88-2-background-dark);
    }

    /* Responsive Design */
    @media (max-width: 768px) {
        .page-app-hm88-2__hero-title {
            font-size: 2.2em;
        }

        .page-app-hm88-2__hero-subtitle {
            font-size: 1.1em;
        }

        .page-app-hm88-2__hero-button {
            padding: 12px 25px;
            font-size: 1em;
        }

        .page-app-hm88-2__section {
            padding: 30px 0;
        }

        .page-app-hm88-2__section-title {
            font-size: 1.8em;
        }

        .page-app-hm88-2__section-subtitle {
            font-size: 1em;
        }

        .page-app-hm88-2__features-grid {
            grid-template-columns: 1fr;
        }
        
        /* List item responsive requirements */
        .page-app-hm88-2__feature-item {
            width: 100% !important;
            max-width: 100% !important;
            box-sizing: border-box !important;
            padding: 20px !important;
            margin-left: 0 !important;
            margin-right: 0 !important;
            word-wrap: break-word !important;
            overflow-wrap: break-word !important;
        }

        .page-app-hm88-2__feature-item p {
            word-break: break-word !important;
        }

        .page-app-hm88-2__image-gallery {
            flex-direction: column;
            align-items: center;
        }

        .page-app-hm88-2__gallery-item {
            width: 100% !important;
            max-width: 100% !important;
            box-sizing: border-box !important;
            margin-left: 0 !important;
            margin-right: 0 !important;
        }

        .page-app-hm88-2__gallery-image {
            max-width: 100% !important;
            height: auto !important;
            box-sizing: border-box !important;
        }

        .page-app-hm88-2__cta-title {
            font-size: 2em;
        }

        .page-app-hm88-2__cta-description {
            font-size: 1em;
        }

        .page-app-hm88-2__cta-button {
            padding: 12px 25px;
            font-size: 1.1em;
        }

        .page-app-hm88-2__faq-title {
            font-size: 1.8em;
        }

        .page-app-hm88-2__faq-question {
            padding: 15px 20px;
            font-size: 1em;
        }

        .page-app-hm88-2__faq-question h3 {
            font-size: 1em;
        }

        .page-app-hm88-2__faq-answer {
            padding: 0 20px;
        }

        .page-app-hm88-2__faq-item.active .page-app-hm88-2__faq-answer {
            padding: 15px 20px !important;
        }

        .page-app-hm88-2__floating-buttons {
            bottom: 15px;
            right: 15px;
            flex-direction: row;
            width: calc(100% - 30px);
            justify-content: space-around;
        }

        .page-app-hm88-2__floating-button {
            flex: 1;
            margin: 0 5px;
            padding: 10px 15px;
            font-size: 0.9em;
        }
    }

    @media (max-width: 480px) {
        .page-app-hm88-2__hero-title {
            font-size: 1.8em;
        }
        .page-app-hm88-2__hero-subtitle {
            font-size: 0.9em;
        }
        .page-app-hm88-2__hero-button {
            font-size: 0.9em;
            padding: 10px 20px;
        }
        .page-app-hm88-2__floating-buttons {
            bottom: 10px;
            right: 10px;
            width: calc(100% - 20px);
        }
        .page-app-hm88-2__floating-button {
            padding: 8px 10px;
            font-size: 0.85em;
        }
    }