/* ============ 管理后台专用样式 ============ */

.admin-wrap { padding: 36px 0 60px; }

.admin-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 26px;
}
.admin-stat {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow);
}
.admin-stat .k { font-size: 13px; color: var(--ink-soft); }
.admin-stat .v { font-size: 28px; font-weight: 700; color: var(--blue-800); margin-top: 4px; }
.admin-stat.alert .v { color: #b26a00; }

.admin-tabs {
  display: flex;
  gap: 6px;
  border-bottom: 2px solid var(--line);
  margin-bottom: 22px;
  flex-wrap: wrap;
}
.admin-tabs button {
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-soft);
  cursor: pointer;
  font-family: inherit;
  margin-bottom: -2px;
}
.admin-tabs button.active { color: var(--blue-700); border-bottom-color: var(--blue-600); }

.admin-panel { display: none; }
.admin-panel.active { display: block; }

.admin-toolbar {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.admin-toolbar select,
.admin-toolbar input[type="text"] {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  color: var(--ink);
  background: var(--white);
}
.admin-toolbar .spacer { flex: 1; }

.admin-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
}
.admin-table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 860px; }
.admin-table th {
  background: var(--blue-50);
  color: var(--blue-900);
  text-align: left;
  padding: 12px 14px;
  font-weight: 600;
  white-space: nowrap;
  border-bottom: 1px solid var(--line);
}
.admin-table td { padding: 12px 14px; border-bottom: 1px solid #f1f5fa; vertical-align: top; }
.admin-table tr:last-child td { border-bottom: none; }
.admin-table tr:hover td { background: var(--blue-50); }
.admin-table .ellip { max-width: 260px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.badge-sm { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.row-actions { display: flex; gap: 6px; flex-wrap: wrap; }

.empty-tip { padding: 44px 20px; text-align: center; color: var(--ink-soft); }

/* 表单 / 编辑器 */
.admin-form {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  margin-bottom: 22px;
}
.admin-form h3 { font-size: 19px; color: var(--blue-900); margin-bottom: 18px; }
.admin-form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.admin-form label { display: block; font-size: 13px; font-weight: 600; color: var(--ink); margin-bottom: 6px; }
.admin-form input[type="text"],
.admin-form select,
.admin-form textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  color: var(--ink);
  background: var(--white);
  margin-bottom: 14px;
}
.admin-form textarea { min-height: 190px; line-height: 1.8; resize: vertical; }
.admin-form textarea.summary { min-height: 78px; }
.admin-form .actions { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }

.cover-preview {
  width: 180px;
  border-radius: 8px;
  border: 1px solid var(--line);
  margin-bottom: 10px;
  display: none;
}

/* 弹窗 */
.modal-mask {
  position: fixed;
  inset: 0;
  background: rgba(10, 42, 94, 0.45);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 999;
  padding: 20px;
}
.modal-mask.show { display: flex; }
.modal-box {
  background: var(--white);
  border-radius: var(--radius);
  max-width: 640px;
  width: 100%;
  max-height: 84vh;
  overflow-y: auto;
  padding: 26px;
}
.modal-box h3 { font-size: 20px; color: var(--blue-900); margin-bottom: 14px; }
.modal-box .kv { margin-bottom: 10px; font-size: 14px; }
.modal-box .kv strong { color: var(--ink); }
.modal-box .kv span { color: var(--ink-soft); }
.modal-box .content-box {
  background: var(--blue-50);
  border-radius: 8px;
  padding: 14px;
  margin-top: 12px;
  white-space: pre-wrap;
  font-size: 14px;
  line-height: 1.8;
}

.deny-box {
  min-height: 50vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 14px;
}

@media (max-width: 900px) {
  .admin-stats { grid-template-columns: repeat(2, 1fr); }
  .admin-form .row { grid-template-columns: 1fr; }
}