<style>
    body {
        font-family: Arial, sans-serif;
        margin: 0;
        padding: 20px;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    .swiper-container {
        width: 100%;
        max-width: 900px;
        margin: 20px auto;
        position: relative;
    }
    .swiper-slide img {
        width: 100%;
        height: auto;
        display: block;
    }
    .swiper-button-next,
    .swiper-button-prev {
        color: white;
        background: rgba(0, 0, 0, 0.5);
        width: 40px;
        height: 40px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .swiper-button-next:after,
    .swiper-button-prev:after {
        font-size: 20px;
    }
    .slide-counter {
        text-align: center;
        margin: 10px 0;
        font-size: 16px;
    }
    .fullscreen-button {
        position: absolute;
        top: 10px;
        right: 10px;
        z-index: 10;
        background: rgba(0, 0, 0, 0.5);
        color: white;
        border: none;
        width: 30px;
        height: 30px;
        border-radius: 50%;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .fullscreen-button:hover {
        background: rgba(0, 0, 0, 0.8);
    }
</style>