.hero-bg-admin-sheet {
  width: min(980px, 98vw);
  max-height: 92vh;
  height: min(820px, 92vh);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.hero-bg-admin-body {
  padding: 0 14px 14px;
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow: hidden;
}

/* —— 上区：config + 上传 —— */
.hero-bg-admin-top {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.hero-bg-admin-section {
  border: 1px solid #e6e6e6;
  border-radius: 10px;
  padding: 12px;
  background: #fafbfc;
}

.hero-bg-admin-section h3 {
  margin: 0 0 10px;
  font-size: 14px;
  font-weight: 600;
  color: #222;
}

.hero-bg-admin-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  align-items: center;
}

.hero-bg-admin-row label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: #444;
}

.hero-bg-admin-row input[type="text"],
.hero-bg-admin-row input[type="number"],
.hero-bg-admin-row select {
  height: 30px;
  border: 1px solid #ccd3da;
  border-radius: 4px;
  padding: 0 8px;
  font-size: 12px;
  min-width: 88px;
  background: #fff;
}

.hero-bg-admin-row input[type="file"] {
  font-size: 12px;
  max-width: 180px;
}

.hero-bg-admin-btn {
  height: 30px;
  border: 1px solid #ccd3da;
  border-radius: 4px;
  background: #fff;
  padding: 0 12px;
  cursor: pointer;
  font-size: 12px;
  color: #333;
}

.hero-bg-admin-btn--primary {
  background: #3d6a96;
  border-color: #3d6a96;
  color: #fff;
}

.hero-bg-admin-btn--danger {
  background: #fff;
  border-color: #e0a0a0;
  color: #b42318;
}

.hero-bg-admin-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.hero-bg-admin-status {
  font-size: 12px;
  color: #666;
  min-height: 1.2em;
}

.hero-bg-admin-status.is-error {
  color: #b42318;
}

.hero-bg-admin-status.is-ok {
  color: #0b7285;
}

/* —— 下区：纵向表格 —— */
.hero-bg-admin-bottom {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  border: 1px solid #e6e6e6;
  border-radius: 10px;
  background: #fff;
  overflow: hidden;
}

.hero-bg-admin-bottom-head {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 12px;
  border-bottom: 1px solid #eee;
  background: #fafbfc;
}

.hero-bg-admin-bottom-head-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.hero-bg-admin-bottom-head h3 {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
}

.hero-bg-admin-table-wrap {
  flex: 1 1 auto;
  min-height: 0;
  overflow-x: auto;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.hero-bg-admin-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  font-size: 12px;
}

.hero-bg-admin-table thead th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: #7a2430;
  color: #fff;
  font-weight: 600;
  text-align: center;
  padding: 8px 6px;
  border-bottom: 1px solid #5f1b24;
}

.hero-bg-admin-table tbody td {
  vertical-align: middle;
  text-align: center;
  padding: 10px 6px;
  border-bottom: 1px solid #eee;
  background: #fff;
}

.hero-bg-admin-table tbody tr.is-inactive td {
  opacity: 0.55;
  background: #f7f7f7;
}

.hero-bg-admin-col-idx {
  width: 48px;
}

.hero-bg-admin-col-mobile {
  width: 28%;
}

.hero-bg-admin-col-desktop {
  width: 42%;
}

.hero-bg-admin-col-active {
  width: 72px;
}

.hero-bg-admin-col-del {
  width: 72px;
}

.hero-bg-admin-thumb {
  margin: 0 auto;
  border-radius: 6px;
  overflow: hidden;
  background: #0a0a0a;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  cursor: pointer;
  outline: none;
  border: 2px dashed rgba(255, 255, 255, 0.28);
  box-sizing: border-box;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.hero-bg-admin-thumb.has-media {
  border-style: solid;
  border-color: transparent;
}

.hero-bg-admin-thumb:hover {
  border-color: #5b8fbf;
  background: #121212;
}

.hero-bg-admin-thumb:focus-visible,
.hero-bg-admin-thumb.is-active-slot {
  border-style: solid;
  border-color: #3d9be0;
  box-shadow:
    0 0 0 3px rgba(61, 155, 224, 0.35),
    inset 0 0 0 1px rgba(255, 255, 255, 0.12);
  background: #151515;
}

.hero-bg-admin-thumb.is-drop-target {
  border-style: solid;
  border-color: #2bbbad;
  box-shadow: 0 0 0 3px rgba(43, 187, 173, 0.35);
  background: #102018;
}

.hero-bg-admin-thumb.is-busy {
  pointer-events: none;
  opacity: 0.7;
}

.hero-bg-admin-thumb--mobile {
  /* 竖向：手机预览框，方便拖入 */
  width: 72px;
  height: 128px;
}

.hero-bg-admin-thumb--desktop {
  /* 横向：电脑预览框 */
  width: 180px;
  height: 100px;
}

.hero-bg-admin-thumb video,
.hero-bg-admin-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  pointer-events: none;
}

.hero-bg-admin-thumb span {
  color: #aaa;
  font-size: 11px;
  padding: 4px;
  line-height: 1.3;
  pointer-events: none;
}

.hero-bg-admin-thumb-empty {
  color: rgba(255, 255, 255, 0.7);
  font-size: 28px;
  font-weight: 300;
  line-height: 1;
  pointer-events: none;
  margin-bottom: 18px;
}

.hero-bg-admin-thumb-hint {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 8px 4px 6px;
  font-size: 10px;
  line-height: 1.35;
  text-align: center;
  color: rgba(255, 255, 255, 0.82);
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.85));
  pointer-events: none;
  white-space: pre-line;
}

.hero-bg-admin-thumb.is-active-slot .hero-bg-admin-thumb-hint {
  color: #fff;
}

.hero-bg-admin-thumb-badge {
  position: absolute;
  left: 4px;
  bottom: 4px;
  font-size: 10px;
  line-height: 1;
  padding: 3px 5px;
  border-radius: 3px;
  background: rgba(0, 0, 0, 0.65);
  color: #fff;
}

.hero-bg-admin-active-label {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  user-select: none;
  font-size: 12px;
  color: #333;
}

.hero-bg-admin-active-label input {
  width: 14px;
  height: 14px;
  margin: 0;
  accent-color: #3d6a96;
}

.hero-bg-admin-empty {
  padding: 28px 12px;
  text-align: center;
  color: #888;
  font-size: 13px;
}

@media (min-width: 900px) {
  .hero-bg-admin-thumb--mobile {
    width: 78px;
    height: 140px;
  }

  .hero-bg-admin-thumb--desktop {
    width: 220px;
    height: 124px;
  }
}

@media (max-width: 640px) {
  .hero-bg-admin-sheet {
    width: 100vw;
    max-width: 100vw;
    height: 100dvh;
    max-height: 100dvh;
    border-radius: 0;
  }

  .hero-bg-admin-body {
    padding: 0 10px 10px;
  }

  .hero-bg-admin-thumb--mobile {
    width: 56px;
    height: 100px;
  }

  .hero-bg-admin-thumb--desktop {
    width: 120px;
    height: 68px;
  }

  .hero-bg-admin-col-idx {
    width: 36px;
  }

  .hero-bg-admin-col-active,
  .hero-bg-admin-col-del {
    width: 56px;
  }

  .hero-bg-admin-row input[type="file"] {
    max-width: 140px;
  }
}