.tiktok-grid {
    max-width: 1100px;
    margin: 20px auto;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
}

.video-box {
    position: relative;
    width: 100%;
    padding-top: 230%; /* proporción 9:16 */
    border-radius: 16px;
    overflow: hidden;
    background: #000;
}

.video-box iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.tiktok-grid-container h2 {
    text-align: center;
    margin-bottom: 20px;
    font-size: 26px;
    font-weight: bold;
}