.yn-sample-module * {
    box-sizing: border-box;
  }

  /* 强制隐藏类，专门用于覆盖系统自带脚本的控制 */
  .yn-hide-force {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
  }

  .yn-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 0;
  }

  .yn-item {
    cursor: pointer;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    aspect-ratio: 91 / 102;
    overflow: hidden;
    padding: 10px;
  }

  .yn-landscape {
    padding: 0 11px 37px 11px;
  }

  .yn-portrait {
    padding: 0 40px 37px 40px;
  }

  .yn-item img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    display: block;
    border-radius: 3px;
    box-shadow:
      0 1px 2px rgba(0, 0, 0, 0.12),
      0 0 0 1px rgba(0, 0, 0, 0.06);
    transition:
      transform 0.18s ease,
      box-shadow 0.18s ease;
  }

  .yn-item:hover img {
    transform: translateY(-2px);
  }

  .yn-viewer {
    position: fixed;
    inset: 0;
    background: #0b0b0b;
    display: none;
    z-index: 9999;
  }

  .yn-full-img {
    user-select: none;
    max-width: 75%;
    max-height: 80vh;
    object-fit: contain;
    opacity: 0;
    transition:
      opacity 0.18s ease,
      transform 0.25s ease;
    cursor: zoom-in;
  }

  .yn-full-img.yn-loaded {
    opacity: 1;
  }

  /* ===== 放大状态 ===== */
  .yn-full-img.yn-zoomed {
    cursor: grab;
    /* 缩放状态显示抓取手势 */
    transform: scale(2) translate(0px, 0px);
    /* 初始缩放 */
    transition: none !important;
    /* 拖拽时不能有过渡动画，否则会卡顿 */
  }

  .yn-full-img.yn-zoomed:active {
    cursor: grabbing;
  }

  @media (hover: hover) and (pointer: fine) {
    .yn-full-img {
      cursor: zoom-in;
    }
  }

  .yn-download {
    margin-top: 25px;
    padding: 5px 0;
    background: none;
    color: #888;
    border: none;
    border-bottom: 1px solid #444;
    cursor: pointer;
    font-size: 12px;
    transition: all 0.3s;
    width: auto;
    display: inline-block;
    text-align: left;
    opacity: 0.6;
  }

  .yn-download:hover {
    color: #fff;
    opacity: 1;
    border-bottom-color: #fff;
  }

  .yn-viewer.active {
    display: block;
  }

  .yn-viewer-inner {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
  }

  .yn-main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    gap: 40px;
    overflow: hidden;
    /* 关键：限制放大后的图片超出此边界 */
    position: relative;
    z-index: 5;
  }

  .yn-info {
    color: #ddd;
    max-width: 320px;
    font-size: 14px;
    line-height: 1.7;
    position: relative;
    z-index: 2;
    /* 初始层级较低 */
    transition: opacity 0.2s;
  }

  .yn-meta-row-author {
    display: none !important;
  }

  .yn-full-img.yn-zoomed ~ .yn-info {
    opacity: 0;
    pointer-events: none;
    /* 防止误触下载 */
  }

  .yn-filmstrip {
    position: relative;
    z-index: 20;
    background: #0b0b0b;
    height: 90px;
    display: flex;
    gap: 8px;
    overflow-x: auto;
    overflow-y: hidden; /* 禁止纵向滚动条 */
    padding: 10px;
    flex-shrink: 0;
    scrollbar-width: none; /* Firefox 隐藏滚动条 */
    -ms-overflow-style: none; /* IE/Edge 隐藏滚动条 */
  }

  /* Chrome / Safari / Edge 隐藏滚动条 */
  .yn-filmstrip::-webkit-scrollbar {
    display: none;
  }

  .yn-filmstrip img {
    height: 70px;
    cursor: pointer;
    opacity: 0.6;
    transition: 0.2s;
  }

  .yn-filmstrip img.active {
    opacity: 1;
    border: 2px solid #fff;
  }

  .yn-close {
    position: absolute;
    top: 20px;
    right: 25px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(4px);
    color: #fff;
    font-size: 36px;
    border: none;
    cursor: pointer;

    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 0;
    padding: 0;
    padding-top: 4px;

    transition: 0.2s;
    z-index: 30;
  }

  .yn-close:hover {
    background: rgba(255, 255, 255, 0.35);
    transform: scale(1.05);
  }

  .yn-prev,
  .yn-next {
    position: absolute;
    background: none;
    border: none;
    color: #fff;
    font-size: 36px;
    cursor: pointer;
    top: 50%;
    transform: translateY(-50%);
    z-index: 25;
  }

  .yn-prev {
    left: 20px;
  }

  .yn-next {
    right: 20px;
  }

  .yn-lock-scroll {
    overflow: hidden !important;
    height: 100vh !important;
  }

  .yn-photo-title {
    font-size: 18px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 12px;
  }

  .yn-meta-row {
    margin-bottom: 6px;
  }

  .yn-meta-label {
    color: #797777;
    margin-right: 6px;
  }

  .yn-meta-value {
    color: #fff;
  }

  @media (max-width: 768px) {
    /* =========================
       1. Viewer 容器高度
    ========================== */
    .yn-viewer-inner {
      height: 100vh;
      height: 100dvh;
    }

    /* =========================
       2. 主区域布局
    ========================== */
    .yn-main {
      flex: 1 1 auto;
      flex-direction: column;
      justify-content: center;
      overflow: hidden;
      padding: 8px 6px;
      gap: 12px;
    }

    /* =========================
       3. 图片显示
    ========================== */
    .yn-full-img {
      width: 100%;
      height: auto;
      max-width: 100%;
      max-height: 75vh;
      object-fit: contain;
    }

    /* =========================
       4. 信息区域压缩版
    ========================== */
    .yn-info {
      margin-top: 6px;
      font-size: 13px;
      line-height: 1.35;
      text-align: center;
    }

    .yn-photo-title {
      font-size: 15px;
      font-weight: 600;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      margin-bottom: 4px;
    }

    .yn-meta {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 6px;
    }

    .yn-meta-label {
      display: none;
    }

    .yn-meta-row {
      margin: 0;
    }

    .yn-meta-value {
      white-space: nowrap;
    }

    .yn-download {
      display: inline-block;
      margin-top: 6px;
      padding: 0;
      border: none;
      border-bottom: 1px solid #555;
      font-size: 13px;
    }

    /* =========================
       5. 胶片条固定
    ========================== */
    .yn-filmstrip {
      flex-shrink: 0;
      height: 75px;
      padding: 6px;
    }

    .yn-filmstrip img {
      height: 60px;
    }

    /* =========================
       6. 隐藏左右按钮
    ========================== */
    .yn-prev,
    .yn-next {
      display: none !important;
    }

    /* =========================
       7. 列表页缩略图
    ========================== */
    .yn-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 10px;
    }

    .yn-item {
      display: flex;
      align-items: flex-end;
      justify-content: center;
      aspect-ratio: 91 / 102;
    }

    .yn-landscape,
    .yn-portrait {
      padding-bottom: 7px;
      padding-left: 0;
      padding-right: 0;
    }
  }