/* DS 资源预览前端样式 v7.23.0 */

/* ============== 容器 ============== */
.ds-preview {
  margin: 0 0 24px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  overflow: hidden;
}
.ds-preview-empty {
  padding: 32px;
  text-align: center;
  color: #94a3b8;
  font-size: 14px;
}
.ds-preview-caption {
  padding: 10px 16px;
  background: #f1f5f9;
  border-top: 1px solid #e2e8f0;
  font-size: 13px;
  color: #64748b;
  text-align: center;
}

/* ============== PDF 预览 ============== */
.ds-preview-pdf {
  background: #ffffff;
  position: relative;
}
.ds-preview-pdf-canvas {
  min-height: 400px;
  max-height: 70vh;
  overflow: auto;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 20px;
  background: #f1f5f9;
  -webkit-user-select: none;
  user-select: none;
}
.ds-preview-pdf-canvas canvas {
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  background: #fff;
  max-width: 100%;
  height: auto !important;
}
.ds-preview-pdf-canvas .ds-pdf-loading {
  padding: 60px 20px;
  color: #94a3b8;
  font-size: 14px;
}
.ds-preview-pdf-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: #ffffff;
  border-top: 1px solid #e2e8f0;
  flex-wrap: wrap;
}
.ds-preview-pdf-toolbar button {
  background: #f1f5f9;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  padding: 6px 14px;
  font-size: 13px;
  color: #0f172a;
  cursor: pointer;
  transition: all 0.2s;
}
.ds-preview-pdf-toolbar button:hover {
  background: #3b82f6;
  color: #fff;
  border-color: #3b82f6;
}
.ds-preview-pdf-toolbar button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.ds-pdf-page-info {
  font-size: 13px;
  color: #475569;
  font-weight: 500;
}
.ds-pdf-hint {
  margin-left: auto;
  font-size: 12px;
  color: #94a3b8;
}

/* ============== 图片画廊 ============== */
.ds-preview-gallery {
  padding: 12px;
}
.ds-gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 8px;
}
.ds-gallery-item {
  display: block;
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: 8px;
  border: 1px solid #e2e8f0;
  background: #f1f5f9;
  cursor: zoom-in;
  position: relative;
  transition: all 0.2s;
}
.ds-gallery-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  border-color: #3b82f6;
}
.ds-gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ============== 灯箱 ============== */
.ds-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  z-index: 99999;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: opacity 0.3s;
  -webkit-user-select: none;
  user-select: none;
}
.ds-lightbox.is-show {
  opacity: 1;
}
.ds-lightbox-img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  box-shadow: 0 0 40px rgba(0,0,0,0.5);
  border-radius: 4px;
}
.ds-lightbox-close,
.ds-lightbox-prev,
.ds-lightbox-next {
  position: absolute;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  color: #fff;
  border: none;
  cursor: pointer;
  font-size: 20px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}
.ds-lightbox-close:hover,
.ds-lightbox-prev:hover,
.ds-lightbox-next:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(1.1);
}
.ds-lightbox-close {
  top: 20px;
  right: 20px;
}
.ds-lightbox-prev {
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
}
.ds-lightbox-next {
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
}
.ds-lightbox-counter {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  color: #fff;
  background: rgba(0, 0, 0, 0.5);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 13px;
}
.ds-lightbox-caption {
  position: absolute;
  bottom: 60px;
  left: 50%;
  transform: translateX(-50%);
  color: #cbd5e1;
  font-size: 13px;
  max-width: 80%;
  text-align: center;
}

/* ============== 视频 ============== */
.ds-preview-video {
  background: #000;
  position: relative;
}
.ds-preview-video video {
  display: block;
  width: 100%;
  max-height: 70vh;
  background: #000;
}
.ds-preview-tip {
  background: rgba(0, 0, 0, 0.7);
  color: #cbd5e1;
  padding: 8px 16px;
  font-size: 12px;
  text-align: center;
}

/* ============== 音频 ============== */
.ds-preview-audio {
  padding: 20px;
  background: #fff;
}
.ds-preview-audio audio {
  width: 100%;
  outline: none;
}

/* ============== 试用下载 ============== */
.ds-preview-trial {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 20px;
  background: linear-gradient(90deg, #fef3c7 0%, #fde68a 100%);
  border-top: 1px solid #fbbf24;
  flex-wrap: wrap;
}
.ds-preview-trial .ds-trial-info {
  font-size: 13px;
  color: #78350f;
}
.ds-preview-trial strong {
  color: #92400e;
}
.ds-trial-btn {
  background: #f59e0b;
  color: #fff;
  text-decoration: none;
  padding: 8px 18px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.2s;
  display: inline-block;
}
.ds-trial-btn:hover {
  background: #d97706;
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.4);
}

/* ============== 水印 ============== */
.ds-preview-watermark {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 10;
  overflow: hidden;
  -webkit-user-select: none;
  user-select: none;
}
.ds-watermark-text {
  position: absolute;
  color: rgba(15, 23, 42, 0.08);
  font-size: 16px;
  font-weight: 500;
  white-space: nowrap;
  transform: rotate(-30deg);
  pointer-events: none;
}

/* ============== 防复制 ============== */
.ds-preview-protected,
.ds-preview-protected * {
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
}

/* ============== 响应式 ============== */
@media (max-width: 768px) {
  .ds-gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
  }
  .ds-preview-pdf-toolbar {
    padding: 10px 12px;
    gap: 8px;
  }
  .ds-pdf-hint {
    display: none;
  }
  .ds-lightbox-close,
  .ds-lightbox-prev,
  .ds-lightbox-next {
    width: 40px;
    height: 40px;
    font-size: 16px;
  }
  .ds-preview-trial {
    flex-direction: column;
    align-items: stretch;
  }
  .ds-trial-btn {
    text-align: center;
  }
}