.swiper-text-block h3 {
    font-size: 2.5em;
    font-weight: 900;
    color: #fff;
    text-transform: uppercase;
    text-shadow: 
        0 0 5px #ff00cc,
        0 0 10px #ff00cc,
        0 0 15px #ff00cc,
        0 0 20px #ff00cc;
    margin-bottom: 10px;
}

.swiper-text-block h4 {
    font-size: 1.2em;
    font-weight: 500;
    color: #ff99ff;
    text-shadow: 0 0 5px #000;
    margin-top: -5px;
}

/* КНОПКА */
.swiper-text-block .btn-slider {
    display: inline-block;
    padding: 12px 28px;
    margin-top: 20px;
    font-size: 1em;
    font-weight: bold;
    border-radius: 30px;
    color: white;
    background: linear-gradient(271deg, #ef008f, #a815ed);
    box-shadow: 0 0 10px #a815ed;
    text-decoration: none;
    transition: background 0.3s, transform 0.2s;
}

.swiper-text-block .btn-slider:hover {
    background: linear-gradient(271deg, #ff00cc, #8f00ff);
    transform: scale(1.05);
}