.slider {
    width: 95%;
    max-width: 1000px;
    position: relative;
    overflow: hidden;
    margin: auto;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 6px 16px rgba(0,0,0,0.1);
  }
  .slides { width: 100%; position: relative; }
  .slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity .8s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
    user-select: none;
    touch-action: pan-y;
  }
  .slide.active { opacity: 1; z-index: 2; position: relative; }
  .slide img {
    max-width: 100%;
    max-height: 75vh;
    width: auto;
    height: auto;
    object-fit: contain;
    display: block;
    margin: auto;
  }
  .control {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,0.4);
    color: #fff;
    border: none;
    padding: 12px;
    cursor: pointer;
    border-radius: 50%;
    transition: background .3s, transform .3s;
    z-index: 10;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .control:hover { background: rgba(0,0,0,0.6); transform: translateY(-50%) scale(1.05); }
  .control-left { left: 10px; }
  .control-right { right: 10px; }
  .thumbnails {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 6px;
    padding: 8px;
    background: rgba(255,255,255,0.9);
  }
  .thumbnail {
    width: 50px;
    height: 35px;
    object-fit: cover;
    border-radius: 4px;
    cursor: pointer;
    opacity: 0.5;
    transition: opacity .3s, transform .3s;
  }
  .thumbnail.active { opacity: 1; transform: scale(1.05); box-shadow: 0 0 4px rgba(0,0,0,0.3); }