.ht-prompt {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.55);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    z-index: 99999;
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s ease;
}

.ht-prompt-show {
    opacity: 1;
    pointer-events: auto;
}

.ht-prompt-content {
    background: #fff;
    border-radius: 14px;
    max-width: 420px;
    width: 100%;
    padding: 20px;
    text-align: center;
    position: relative;
}

.ht-prompt-close {
    position: absolute;
    right: 12px;
    top: 10px;
    font-size: 24px;
    cursor: pointer;
}

.ht-prompt-image {
    max-width: 100%;
    border-radius: 10px;
    margin-bottom: 15px;
}

.ht-prompt-btn {
    display: inline-block;
    margin-top: 15px;
    padding: 12px 18px;
    background: #0073aa;
    color: #fff;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
}

@media (max-width: 480px) {
    .ht-prompt-content {
        max-width: 95%;
        padding: 15px;
    }
    .ht-prompt-btn {
        width: 100%;
    }
}