/* ==========================================================================
   丹山社区管理后台 · 样式
   ========================================================================== */
:root {
  --brand: #b71c1c;
  --brand-dark: #8e1414;
  --brand-light: #fdecec;
  --side-bg: #1f2937;
  --side-hover: #374151;
  --text: #1f2937;
  --text-sub: #6b7280;
  --border: #e5e7eb;
  --bg: #f3f4f6;
  --ok: #16a34a;
  --warn: #f59e0b;
  --danger: #dc2626;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0, 0, 0, .08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; vertical-align: middle; }

/* ---------- 登录页 ---------- */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #b71c1c 0%, #7f1010 60%, #1f2937 100%);
  padding: 20px;
}
.login-box {
  width: 100%;
  max-width: 400px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, .3);
  padding: 36px 32px 28px;
}
.login-box h1 { margin: 0 0 6px; font-size: 22px; text-align: center; color: var(--brand); }
.login-box .sub { text-align: center; color: var(--text-sub); margin-bottom: 24px; font-size: 13px; }
.login-box .field { margin-bottom: 16px; }
.login-box label { display: block; margin-bottom: 6px; font-size: 13px; color: var(--text-sub); }
.login-box .ipt { width: 100%; }
.login-box .captcha-row { display: flex; gap: 10px; }
.login-box .captcha-row .ipt { flex: 1; }
.login-box .captcha-row img { height: 40px; border-radius: 6px; border: 1px solid var(--border); cursor: pointer; }
.login-btn { width: 100%; height: 44px; font-size: 15px; margin-top: 6px; }
.login-tip { margin-top: 14px; text-align: center; color: #9ca3af; font-size: 12px; }

/* ---------- 布局 ---------- */
.adm-wrap { display: flex; min-height: 100vh; }

.adm-side {
  width: 236px;
  flex: 0 0 236px;
  background: linear-gradient(180deg, #1f2937 0%, #172033 100%);
  color: #d1d5db;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  overflow-y: auto;
  overflow-x: hidden;
  z-index: 20;
  transition: transform .25s ease;
  border-right: 1px solid rgba(255, 255, 255, .05);
}
.adm-side::-webkit-scrollbar { width: 6px; }
.adm-side::-webkit-scrollbar-track { background: transparent; }
.adm-side::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, .14); border-radius: 3px; }
.adm-side::-webkit-scrollbar-thumb:hover { background: rgba(255, 255, 255, .3); }

.adm-logo {
  height: 60px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 18px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .5px;
  color: #fff;
  background: linear-gradient(90deg, #8e1414, #b71c1c);
  box-shadow: 0 2px 12px rgba(0, 0, 0, .28);
  position: sticky;
  top: 0;
  z-index: 2;
}
.adm-logo .dot {
  width: 9px; height: 9px; border-radius: 3px; background: #fff;
  box-shadow: 0 0 0 3px rgba(255, 255, 255, .22);
}

/* ---------- 侧栏菜单 ---------- */
.adm-nav { padding: 10px 0 30px; }
.adm-nav .nav-item { margin: 2px 10px; }
.adm-nav .nav-item > a {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 14px;
  color: #cbd5e1;
  transition: background .18s, color .18s, box-shadow .18s;
}
/* 左侧指示条 */
.adm-nav .nav-item > a::before {
  content: '';
  position: absolute; left: 0; top: 50%;
  width: 3px; height: 0; border-radius: 0 3px 3px 0;
  background: rgba(255, 255, 255, .55);
  transform: translateY(-50%);
  transition: height .2s ease;
}
.adm-nav .nav-item > a:hover { background: rgba(255, 255, 255, .07); color: #fff; }
.adm-nav .nav-item > a:hover::before { height: 44%; }
.adm-nav .nav-item.on > a {
  background: linear-gradient(90deg, rgba(183, 28, 28, .95), rgba(142, 20, 20, .5));
  color: #fff;
  font-weight: 500;
  box-shadow: 0 4px 14px rgba(183, 28, 28, .28);
}
.adm-nav .nav-item.on > a::before { height: 60%; background: #fff; }

.adm-nav .nav-item > a .ico {
  flex: none;
  width: 26px; height: 26px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 7px;
  font-size: 14px;
  background: rgba(255, 255, 255, .08);
  transition: background .18s;
}
.adm-nav .nav-item.on > a .ico { background: rgba(255, 255, 255, .2); }
.adm-nav .nav-item > a .txt { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.adm-nav .nav-item > a .caret {
  flex: none;
  width: 18px; height: 18px;
  display: flex; align-items: center; justify-content: center;
  font-style: normal; font-size: 10px; line-height: 1;
  border-radius: 5px;
  color: rgba(255, 255, 255, .55);
  transition: transform .2s ease, background .18s, color .18s;
}
.adm-nav .nav-item > a .caret:hover { background: rgba(255, 255, 255, .18); color: #fff; }
.adm-nav .nav-item.collapsed > a .caret { transform: rotate(-90deg); }

/* 二级菜单默认展开，保证所有入口可直接点击跳转 */
.adm-nav .nav-sub {
  display: block;
  margin: 4px 0 8px;
  padding: 6px 0 6px 10px;
  background: rgba(0, 0, 0, .18);
  border-radius: 8px;
}
.adm-nav .nav-item.collapsed .nav-sub { display: none; }
.adm-nav .nav-sub a {
  position: relative;
  display: flex; align-items: center; gap: 10px;
  padding: 8px 12px;
  font-size: 13.5px;
  color: #94a3b8;
  border-radius: 7px;
  transition: background .18s, color .18s;
}
.adm-nav .nav-sub a::before {
  content: '';
  flex: none;
  width: 6px; height: 6px; border-radius: 50%;
  background: #4b5563;
  transition: background .18s, transform .18s, box-shadow .18s;
}
.adm-nav .nav-sub a:hover { color: #fff; background: rgba(255, 255, 255, .07); }
.adm-nav .nav-sub a:hover::before { background: #fca5a5; transform: scale(1.25); }
.adm-nav .nav-sub a.on {
  color: #fff;
  font-weight: 500;
  background: linear-gradient(90deg, rgba(183, 28, 28, .45), rgba(183, 28, 28, .05));
}
.adm-nav .nav-sub a.on::before { background: #fca5a5; box-shadow: 0 0 0 3px rgba(183, 28, 28, .3); }

.adm-main { flex: 1; margin-left: 236px; min-width: 0; }

.adm-top {
  height: 60px;
  background: #fff;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 3px rgba(0, 0, 0, .04);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 22px;
  position: sticky;
  top: 0;
  z-index: 10;
}
.adm-top .left { display: flex; align-items: center; gap: 12px; }
.adm-top .toggle {
  display: none;
  width: 34px; height: 34px;
  background: none; border: none; font-size: 18px; cursor: pointer;
  border-radius: 8px; color: var(--text);
}
.adm-top .toggle:hover { background: #f3f4f6; color: var(--brand); }
.adm-top .crumb {
  position: relative;
  padding-left: 13px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}
.adm-top .crumb::before {
  content: '';
  position: absolute; left: 0; top: 50%;
  width: 3px; height: 16px; border-radius: 2px;
  background: var(--brand);
  transform: translateY(-50%);
}
.adm-top .right { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--text-sub); }
.adm-top .right .avatar {
  width: 30px; height: 30px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #d32f2f, var(--brand));
  color: #fff; font-size: 13px; font-weight: 600;
}
.adm-top .right .uname { color: var(--text); font-weight: 600; }
.adm-top .right .who { display: flex; align-items: center; gap: 8px; }
.adm-top .right a {
  display: inline-flex; align-items: center; gap: 4px;
  height: 30px; padding: 0 11px;
  border-radius: 7px;
  transition: background .18s, color .18s;
}
.adm-top .right a:hover { color: var(--brand); background: #fdf1f1; }

.adm-content { padding: 20px; }

/* ---------- 通用组件 ---------- */
.panel { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); margin-bottom: 18px; }
.panel-hd {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}
.panel-hd h2 { margin: 0; font-size: 15px; font-weight: 600; }
.panel-bd { padding: 18px; }

.page-title { font-size: 18px; margin: 0 0 16px; font-weight: 600; }
.page-title small { font-size: 12px; color: var(--text-sub); font-weight: 400; margin-left: 8px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  height: 34px;
  padding: 0 14px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  transition: all .15s;
  white-space: nowrap;
}
.btn:hover { border-color: #cbd5e1; background: #f9fafb; }
.btn-primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-dark); border-color: var(--brand-dark); color: #fff; }
.btn-danger { background: #fff; border-color: #fca5a5; color: var(--danger); }
.btn-danger:hover { background: #fef2f2; }
.btn-sm { height: 28px; padding: 0 10px; font-size: 12px; }
.btn-lg { height: 40px; padding: 0 20px; font-size: 15px; }
.btn:disabled { opacity: .55; cursor: not-allowed; }

.toolbar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.toolbar .grow { flex: 1; }

.ipt, .sel, .txt {
  height: 34px;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  font-size: 13px;
  color: var(--text);
  outline: none;
  max-width: 100%;
}
.txt { height: auto; padding: 8px 10px; line-height: 1.6; resize: vertical; }
.ipt:focus, .sel:focus, .txt:focus { border-color: var(--brand); box-shadow: 0 0 0 2px rgba(183, 28, 28, .1); }
.ipt.w-lg { width: 320px; }
.ipt.w-md { width: 200px; }
.ipt.w-sm { width: 110px; }
.sel { padding-right: 24px; }

table.tb { width: 100%; border-collapse: collapse; font-size: 13px; }
table.tb th, table.tb td { padding: 10px 12px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: middle; }
table.tb th { background: #f9fafb; color: var(--text-sub); font-weight: 500; white-space: nowrap; }
table.tb tbody tr:hover { background: #fafafa; }
table.tb td.ops a, table.tb td.ops button { margin-right: 6px; }
.tb-wrap { overflow-x: auto; }

.tag {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 10px;
  font-size: 12px;
  line-height: 18px;
  background: #f3f4f6;
  color: var(--text-sub);
}
.tag-ok { background: #dcfce7; color: #15803d; }
.tag-warn { background: #fef3c7; color: #a16207; }
.tag-danger { background: #fee2e2; color: #b91c1c; }
.tag-info { background: #dbeafe; color: #1d4ed8; }

.form-row { display: flex; margin-bottom: 16px; align-items: flex-start; }
.form-row .lb { width: 110px; flex: 0 0 110px; padding-top: 8px; color: var(--text-sub); font-size: 13px; text-align: right; padding-right: 12px; }
.form-row .vl { flex: 1; min-width: 0; }
.form-row .vl .tip { color: #9ca3af; font-size: 12px; margin-top: 6px; }
.form-row .ipt, .form-row .sel, .form-row .txt { width: 100%; max-width: 620px; }
.form-actions { padding-left: 110px; display: flex; gap: 10px; }

.upload-box { display: flex; gap: 10px; align-items: center; }
.upload-box .preview {
  width: 120px; height: 80px; border: 1px dashed var(--border); border-radius: 6px;
  display: flex; align-items: center; justify-content: center; overflow: hidden; background: #fafafa;
}
.upload-box .preview img { width: 100%; height: 100%; object-fit: cover; }

.pager { padding: 14px 18px; }
.pager .pagination { display: flex; gap: 6px; flex-wrap: wrap; list-style: none; margin: 0; padding: 0; }
.pager .pagination li a, .pager .pagination li span {
  display: block; min-width: 32px; height: 32px; line-height: 30px; text-align: center;
  border: 1px solid var(--border); border-radius: 6px; background: #fff; font-size: 13px; padding: 0 8px;
}
.pager .pagination li.active span { background: var(--brand); color: #fff; border-color: var(--brand); }
.pager .pagination li.disabled span { color: #cbd5e1; }

/* ---------- 统计卡片 ---------- */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; margin-bottom: 18px; }
.stat-card { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 16px 18px; }
.stat-card .num { font-size: 26px; font-weight: 600; color: var(--brand); line-height: 1.2; }
.stat-card .lb { color: var(--text-sub); font-size: 13px; margin-top: 4px; }
.stat-card .sub { font-size: 12px; color: #9ca3af; margin-top: 6px; }

.empty { padding: 40px 0; text-align: center; color: #9ca3af; }

/* ---------- 相册照片墙 ---------- */
.photo-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 14px; }
.photo-item { background: #fff; border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.photo-item .thumb { height: 110px; overflow: hidden; background: #f3f4f6; }
.photo-item .thumb img { width: 100%; height: 100%; object-fit: cover; }
.photo-item .meta { padding: 8px; font-size: 12px; }
.photo-item .meta input { width: 100%; height: 26px; border: 1px solid var(--border); border-radius: 4px; padding: 0 6px; font-size: 12px; }
.photo-item .meta .ops { display: flex; gap: 6px; margin-top: 6px; }

.attach-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 12px; }
.attach-item { border: 1px solid var(--border); border-radius: 6px; padding: 8px; text-align: center; background: #fff; font-size: 12px; }
.attach-item .thumb { height: 84px; display: flex; align-items: center; justify-content: center; background: #f9fafb; margin-bottom: 6px; overflow: hidden; }
.attach-item .thumb img { max-height: 84px; }
.attach-item .nm { word-break: break-all; color: var(--text-sub); height: 32px; overflow: hidden; }

/* ---------- 编辑器 ---------- */
.editor { border: 1px solid var(--border); border-radius: 6px; overflow: hidden; background: #fff; }
.editor-bar { display: flex; flex-wrap: wrap; gap: 4px; padding: 6px; background: #f9fafb; border-bottom: 1px solid var(--border); }
.editor-bar .ebtn {
  min-width: 32px; height: 30px; padding: 0 8px; border: 1px solid var(--border);
  background: #fff; border-radius: 4px; cursor: pointer; font-size: 13px; color: var(--text);
}
.editor-bar .ebtn:hover { background: var(--brand-light); border-color: #fca5a5; }
.editor-bar .ebtn-right { margin-left: auto; }
.editor-area {
  min-height: 340px; padding: 14px; outline: none; line-height: 1.8; font-size: 14px;
  max-height: 620px; overflow-y: auto;
}
.editor-area[data-src="1"] { font-family: Consolas, Menlo, monospace; font-size: 13px; white-space: pre-wrap; background: #f9fafb; }
.editor-area img { max-width: 100%; height: auto; }
.editor-area h2, .editor-area h3 { margin: 12px 0 8px; }
.editor-area p { margin: 0 0 10px; }
.editor-area table { border-collapse: collapse; }
.editor-area td, .editor-area th { border: 1px solid #d1d5db; padding: 6px 8px; }

/* ---------- 提示条 ---------- */
.alert { padding: 10px 14px; border-radius: 6px; font-size: 13px; margin-bottom: 14px; }
.alert-info { background: #eff6ff; color: #1d4ed8; border: 1px solid #bfdbfe; }
.alert-warn { background: #fffbeb; color: #a16207; border: 1px solid #fde68a; }
.alert-ok { background: #f0fdf4; color: #15803d; border: 1px solid #bbf7d0; }

/* ---------- 弹窗 ---------- */
.modal-mask {
  position: fixed; inset: 0; background: rgba(0, 0, 0, .45); z-index: 100;
  display: none; align-items: center; justify-content: center; padding: 20px;
}
.modal-mask.show { display: flex; }
.modal {
  background: #fff; border-radius: 10px; width: 100%; max-width: 520px;
  max-height: 84vh; overflow: auto; box-shadow: 0 20px 50px rgba(0, 0, 0, .3);
}
.modal .hd { padding: 14px 18px; border-bottom: 1px solid var(--border); font-weight: 600; display: flex; justify-content: space-between; align-items: center; }
.modal .bd { padding: 18px; }
.modal .ft { padding: 12px 18px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; }
.modal .close { background: none; border: none; font-size: 20px; cursor: pointer; color: var(--text-sub); }
.dl-info { display: grid; grid-template-columns: 90px 1fr; gap: 8px 10px; font-size: 13px; }
.dl-info dt { color: var(--text-sub); }
.dl-info dd { margin: 0; word-break: break-all; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; top: 24px; transform: translateX(-50%);
  background: rgba(17, 24, 39, .92); color: #fff; padding: 10px 20px; border-radius: 20px;
  font-size: 13px; z-index: 200; opacity: 0; pointer-events: none; transition: opacity .2s;
}
.toast.show { opacity: 1; }
.toast.ok { background: rgba(21, 128, 61, .95); }
.toast.err { background: rgba(185, 28, 28, .95); }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .form-row .ipt, .form-row .sel, .form-row .txt { max-width: 100%; }
}
@media (max-width: 768px) {
  .adm-side { transform: translateX(-100%); }
  .adm-side.open { transform: translateX(0); }
  .adm-main { margin-left: 0; }
  .adm-top .toggle { display: block; }
  .adm-content { padding: 12px; }
  .form-row { flex-direction: column; }
  .form-row .lb { width: auto; flex: none; text-align: left; padding: 0 0 6px; }
  .form-actions { padding-left: 0; }
  .ipt.w-lg, .ipt.w-md { width: 100%; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .panel-hd { padding: 12px 14px; }
  .panel-bd { padding: 14px; }
}