/* ============================================================
   AI 工具导航 · 后台样式（纯净版 / 无框架）
   深色左侧栏 #1a1d29 + 浅灰内容区 #f7f8fa + 紫色主色 #6366f1
   ============================================================ */

:root{
  --primary:#6366f1;
  --primary-hover:#4f46e5;
  --bg:#f7f8fa;
  --card:#ffffff;
  --border:#e8eaee;
  --text:#1f2329;
  --text-secondary:#6b7280;
  --radius:12px;
  --shadow:0 1px 3px rgba(0,0,0,.05);

  /* 侧栏 */
  --side:#1a1d29;
  --side-item:#a1a5b0;
  --side-group:#6b7280;
  --side-badge:#2a2d3a;
  --side-hover:rgba(255,255,255,.06);
  --side-active-bg:rgba(99,102,241,.15);

  /* 语义色 */
  --ok:#2e7d32;
  --ok-bg:#e8f5e9;
  --warn:#b45309;
  --warn-bg:#fff7e6;
  --bad:#c0392b;
  --bad-bg:#fdecea;
  --primary-soft:#f0f1ff;
  --primary-border:#dcdcfb;

  --shadow-hover:0 4px 12px rgba(99,102,241,.1);
  --shadow-md:0 6px 18px rgba(31,35,41,.08);
  --r-sm:8px;
  --r-lg:12px;
  --r-pill:999px;
}

*{box-sizing:border-box}

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:14px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}

a{color:var(--primary);text-decoration:none}
a:hover{color:var(--primary-hover)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;padding:0}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

.muted{color:var(--text-secondary)}
.small{font-size:12.5px}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px;font-variant-numeric:tabular-nums}
.req{color:var(--bad)}
.ellipsis{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:360px}

/* ============================================================
   骨架：左侧固定 240px + 右侧主区
   ============================================================ */
.adm{display:flex;min-height:100vh}

.side{
  width:240px;flex:none;
  background:var(--side);
  display:flex;flex-direction:column;
  position:sticky;top:0;height:100vh;overflow-y:auto;
  scrollbar-width:thin;scrollbar-color:#333846 transparent;
}
.side::-webkit-scrollbar{width:6px}
.side::-webkit-scrollbar-thumb{background:#333846;border-radius:3px}

/* Logo 区 */
.side-brand{
  display:flex;align-items:center;gap:11px;
  padding:18px 16px;flex:none;
}
.bm{
  width:40px;height:40px;border-radius:10px;flex:none;
  background:linear-gradient(135deg,#6366f1 0%,#8b5cf6 100%);
  color:#fff;display:grid;place-items:center;
  font-size:13px;font-weight:700;letter-spacing:.02em;
}
.side-brand b{
  display:block;font-size:14px;font-weight:600;color:#fff;
  line-height:1.3;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:150px;
}
.side-brand small{display:block;color:var(--side-group);font-size:11.5px;line-height:1.5}

/* 菜单 */
.side-nav{padding:2px 10px 16px;flex:1}
.nav-group{
  font-size:12px;color:var(--side-group);
  padding:0 8px;margin:20px 0 6px;
  letter-spacing:.02em;
}
.nav-group:first-child{margin-top:6px}

.side-nav a{
  display:flex;align-items:center;gap:10px;
  height:40px;padding:0 10px;border-radius:6px;
  font-size:14px;color:var(--side-item);
  position:relative;
  transition:background .15s,color .15s;
}
.side-nav a:hover{background:var(--side-hover);color:#fff}
.side-nav a.on{
  background:var(--side-active-bg);
  color:#fff;font-weight:500;
}
.side-nav a.on::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:18px;border-radius:0 3px 3px 0;background:var(--primary);
}
.side-nav svg{width:16px;height:16px;flex:none;opacity:.85}
.side-nav a.on svg,.side-nav a:hover svg{opacity:1}
.side-nav .cnt{
  margin-left:auto;font-size:12px;line-height:1;
  background:var(--side-badge);color:#c9ccd6;
  padding:4px 7px;border-radius:10px;
  font-variant-numeric:tabular-nums;
}

/* 侧栏底部 */
.side-foot{
  padding:12px 16px 16px;border-top:1px solid rgba(255,255,255,.06);
  font-size:12.5px;flex:none;
}
.side-link{display:flex;align-items:center;gap:7px;color:var(--side-item);padding:6px 0;transition:color .15s}
.side-link:hover{color:#fff}
.side-link.danger{color:#e08b84}
.side-link.danger:hover{color:#f0a8a2}
.side-user{color:var(--side-group);font-size:12px;padding:6px 0 2px}
.side-user b{color:#fff;font-weight:500}

/* 主区 */
.main{flex:1;min-width:0;display:flex;flex-direction:column}

/* 顶栏 56px */
.topbar{
  display:flex;align-items:center;gap:14px;
  background:var(--card);
  padding:0 24px;height:56px;
  position:sticky;top:0;z-index:20;
  box-shadow:0 1px 0 var(--border);
}
.topbar h1{margin:0;font-size:16px;font-weight:600;color:var(--text)}
.topbar .tb-txt{display:flex;align-items:baseline;gap:10px;flex:1;min-width:0}
.topbar .tb-desc{
  font-size:13px;color:var(--text-secondary);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.top-actions{display:flex;gap:8px;flex:none}

.content{padding:24px;max-width:1340px;width:100%}

/* ============================================================
   顶部提示条「这一页能做什么」
   ============================================================ */
.page-desc{
  display:flex;gap:12px;align-items:flex-start;
  background:var(--primary-soft);
  border-left:4px solid var(--primary);
  border-radius:8px;
  padding:14px 16px;margin-bottom:20px;
}
.page-desc .pd-ic{
  width:24px;height:24px;flex:none;border-radius:50%;
  background:var(--primary);color:#fff;
  display:grid;place-items:center;margin-top:1px;
}
.page-desc .pd-ic svg{width:13px;height:13px}
.page-desc .pd-body{min-width:0;flex:1}
.page-desc .pd-t{
  font-size:13.5px;font-weight:600;color:#3730a3;
  margin:0 0 3px;
}
.page-desc .pd-d{margin:0;font-size:13px;color:#4b4f6b;line-height:1.75}
.page-desc .pd-d b{color:#312e81;font-weight:600}
.page-desc .pd-d code{
  background:rgba(255,255,255,.8);padding:1px 6px;border-radius:4px;
  font-size:12px;color:#4338ca;
}

/* ============================================================
   按钮
   ============================================================ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:34px;padding:0 14px;border-radius:var(--r-sm);
  background:var(--card);color:var(--text-secondary);
  border:1px solid var(--border);
  font-size:13px;font-weight:500;white-space:nowrap;cursor:pointer;
  transition:all .15s;
}
.btn:hover{border-color:var(--primary);color:var(--primary);background:#fbfbff}
.btn:active{transform:translateY(1px)}
.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn.primary:hover{background:var(--primary-hover);border-color:var(--primary-hover);color:#fff}
.btn.danger{color:var(--bad);border-color:#f3d2ce}
.btn.danger:hover{background:var(--bad-bg);border-color:var(--bad);color:var(--bad)}
.btn.ghost{background:transparent;border-color:transparent;color:var(--text-secondary)}
.btn.ghost:hover{background:var(--bg);color:var(--primary);border-color:transparent}
.btn.sm{height:28px;padding:0 10px;font-size:12.5px;border-radius:6px}
.btn.lg{height:40px;padding:0 20px;font-size:14px}
.btn.block{width:100%;height:42px;font-size:14.5px}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn svg{width:14px;height:14px}

/* ============================================================
   统计卡片：左侧 4px 主色竖条，无边框
   ============================================================ */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:20px}
.stat{
  background:var(--card);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  border-left:4px solid var(--primary);
  padding:18px 20px;
  position:relative;
  transition:transform .18s,box-shadow .18s;
}
.stat:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.stat-n{
  display:block;
  font-size:28px;font-weight:700;line-height:1.2;
  color:var(--text);letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
}
.stat-l{display:block;font-size:13px;color:var(--text-secondary);margin-top:2px}
.stat-x{display:block;font-size:12px;color:#9ca3af;margin-top:4px}

/* 兼容旧结构（图标 + 文本块） */
.stat-ic{
  width:42px;height:42px;flex:none;border-radius:var(--r-sm);
  display:grid;place-items:center;
  background:var(--primary-soft);color:var(--primary);
}
.stat-ic svg{width:20px;height:20px}
.stat-b{min-width:0}

/* ============================================================
   面板 / 卡片
   ============================================================ */
.panels{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:20px;align-items:start}
.panels>.panel{align-self:start;margin-bottom:0}

.panel{
  background:var(--card);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:0;margin-bottom:20px;
  overflow:hidden;
}
.panel-h{
  display:flex;align-items:center;gap:9px;flex-wrap:wrap;
  padding:16px 20px 0;
}
.panel-h h2{margin:0;font-size:15px;font-weight:600;color:var(--text)}
.panel-h .more{margin-left:auto;font-size:12.5px;font-weight:500}
.panel-b{padding:14px 20px 18px}
.panel-b.tight{padding:0}
.panel-sub{margin:6px 0 14px;padding:0 20px;font-size:13px;color:var(--text-secondary);line-height:1.7}
.panel-sub b{color:var(--text)}
.panel>.panel-sub{margin-top:6px}

/* 面板内直接放表格时去掉重复内边距 */
.panel>.tbl,.panel>.empty-tip{margin-top:14px}

/* 空状态 */
.empty-box{
  padding:34px 20px;text-align:center;color:var(--text-secondary);font-size:13px;
  background:#fbfbfd;border-radius:var(--r-sm);
}
.empty-tip{padding:14px 20px;color:var(--text-secondary);font-size:13px;margin:0}

/* 提示条 */
.flash{
  display:flex;align-items:center;gap:9px;flex-wrap:wrap;
  padding:12px 16px;border-radius:var(--r-sm);
  font-size:13px;margin-bottom:18px;
  border-left:4px solid;
}
.flash.ok{background:var(--ok-bg);border-color:var(--ok);color:#1b5e20}
.flash.warn{background:var(--warn-bg);border-color:#f59e0b;color:#92400e}
.flash.err{background:var(--bad-bg);border-color:#e05252;color:#9b2c2c}
.flash a{font-weight:600}

/* ============================================================
   表格
   ============================================================ */
.tbl{width:100%;border-collapse:collapse;font-size:13.5px}
.tbl th{
  text-align:left;font-size:13px;font-weight:500;color:var(--text-secondary);
  padding:0 16px;height:44px;
  background:#f9fafb;
  border-bottom:1px solid var(--border);
  white-space:nowrap;
}
.tbl td{
  padding:0 16px;height:52px;
  border-bottom:1px solid var(--border);
  vertical-align:middle;
}
.tbl tbody tr{transition:background .12s}
.tbl tbody tr:hover{background:#f9fafb}
.tbl tbody tr:last-child td{border-bottom:0}
.tbl.kv td:first-child{color:var(--text-secondary);width:150px}
.tbl .mono,.tbl time,.tbl .time{font-variant-numeric:tabular-nums}

.lnk{color:var(--text);font-weight:500}
.lnk:hover{color:var(--primary)}

.tool-cell{display:flex;align-items:center;gap:10px;min-width:0}
.avatar-sm{
  width:32px;height:32px;border-radius:8px;flex:none;
  display:grid;place-items:center;color:#fff;
  font-size:12.5px;font-weight:600;
}
.title-cell b{display:block;font-weight:600;color:var(--text);margin-bottom:2px}
.title-cell span{font-size:12px;color:var(--text-secondary)}
.ops{display:flex;gap:4px;flex-wrap:nowrap;align-items:center;justify-content:flex-end}
.ops form{display:inline-flex;margin:0}
.tbl-tools td:first-child{width:38px}

/* ============================================================
   状态徽标
   ============================================================ */
.badge{
  display:inline-flex;align-items:center;
  padding:2px 10px;border-radius:12px;
  font-size:12px;line-height:1.7;font-weight:400;white-space:nowrap;
  background:var(--primary-soft);color:#4338ca;
}
.badge.ok{background:var(--ok-bg);color:var(--ok)}
.badge.warn{background:var(--warn-bg);color:var(--warn)}
.badge.bad{background:var(--bad-bg);color:var(--bad)}
.badge.off{background:#f2f4f7;color:#8a919c}
.badge.hot{background:#fff4e5;color:#b45309}
.badge.pin{background:#eef0fe;color:#4f46e5}

/* ============================================================
   工具条 / 筛选 / 输入
   ============================================================ */
.toolbar{display:flex;gap:10px;align-items:center;margin-bottom:16px;flex-wrap:wrap}
.filters{display:flex;gap:8px;flex-wrap:wrap;flex:1;align-items:center}
.toolbar-right{margin-left:auto;display:flex;gap:8px}

.inp{
  height:34px;padding:0 12px;border-radius:var(--r-sm);
  border:1px solid var(--border);background:#fff;
  font-size:13px;outline:none;min-width:130px;color:var(--text);
  transition:border-color .15s,box-shadow .15s;
}
.inp:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(99,102,241,.12)}
.inp.sm{height:29px;font-size:12.5px;min-width:0;border-radius:6px}
input[type="search"].inp{min-width:230px}

.batchbar{
  display:flex;align-items:center;gap:12px;
  padding:11px 16px;border-radius:var(--r-sm);
  background:#f9fafb;margin-bottom:14px;
  flex-wrap:wrap;font-size:13px;
}
.chk-all{display:flex;align-items:center;gap:7px;font-size:13px;font-weight:500;cursor:pointer}
.chk-inline{display:inline-flex;align-items:center;gap:7px;font-size:13px;cursor:pointer;margin-right:16px}
input[type=checkbox],input[type=radio]{width:16px;height:16px;cursor:pointer;accent-color:var(--primary)}

/* ============================================================
   表单
   ============================================================ */
.form-card{
  background:var(--card);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;
}
.form-card-body{padding:24px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px 20px}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
.form-grid .field{margin-bottom:0}
.field.col-2{grid-column:1 / -1}
.field label{
  font-size:13px;font-weight:500;color:var(--text);
  display:flex;align-items:center;gap:6px;flex-wrap:wrap;
}
.field input[type=text],.field input[type=password],.field input[type=number],.field input[type=url],
.field input[type=email],.field input[type=datetime-local],.field input[type=date],
.field select,.field textarea{
  width:100%;padding:9px 12px;border-radius:var(--r-sm);
  border:1px solid var(--border);background:#fff;
  font-size:13.5px;outline:none;
  transition:border-color .15s,box-shadow .15s;
}
.field textarea{resize:vertical;line-height:1.75}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--primary);box-shadow:0 0 0 3px rgba(99,102,241,.12);
}
.field input[type=file]{font-size:13px;padding:6px 0}
.field .tip{font-size:12px;color:#9ca3af;line-height:1.65}
.field .tip b{color:var(--text-secondary)}
.field .lb{
  font-weight:400;font-size:11.5px;color:#4338ca;
  background:var(--primary-soft);padding:1px 8px;border-radius:var(--r-pill);
}
.checks-row{display:flex;flex-wrap:wrap;gap:10px 4px}
.color-row{display:flex;align-items:center;gap:10px}
.color-row input[type=color]{
  width:46px;height:34px;padding:2px;border-radius:var(--r-sm);
  border:1px solid var(--border);background:#fff;cursor:pointer;
}
.feat-box{background:#f9fafb;border-radius:var(--r-sm);padding:14px 16px}
.logo-prev img{max-width:120px;max-height:70px;border-radius:var(--r-sm)}

/* 表单分区 */
.form-section{margin-bottom:24px}
.form-section:last-of-type{margin-bottom:0}
.form-section-h{
  display:flex;align-items:center;gap:9px;flex-wrap:wrap;
  margin:0 0 16px;padding-bottom:10px;border-bottom:1px solid var(--border);
}
.form-section-h .fs-n{
  width:22px;height:22px;flex:none;border-radius:6px;
  background:var(--primary);color:#fff;
  display:grid;place-items:center;font-size:11.5px;font-weight:700;
}
.form-section-h b{font-size:14px;font-weight:600;color:var(--text)}
.form-section-h .fs-d{font-size:12.5px;color:var(--text-secondary)}
.form-section-h .fs-x{margin-left:auto;font-size:12px;color:#9ca3af}
.form-section+.form-section{margin-top:26px;padding-top:22px;border-top:1px solid var(--border)}

.form-actions{
  display:flex;gap:10px;justify-content:flex-end;align-items:center;
  padding:16px 24px;background:#fbfbfd;border-top:1px solid var(--border);
}
.form-actions .tip{margin-right:auto;font-size:12.5px;color:var(--text-secondary)}
.crumb{font-size:12.5px;color:var(--text-secondary);margin:0 0 16px}
.crumb a{color:var(--primary)}
.hint-note{
  margin:16px 0 0;padding:14px 16px;border-radius:var(--r-sm);
  background:#f9fafb;font-size:12.5px;color:var(--text-secondary);line-height:1.8;
}
.hint-note b{color:var(--text)}

/* ============================================================
   快捷操作：3 列 2 行
   ============================================================ */
.quick{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.panel .quick{padding:0 20px 20px}
.quick-btn{
  display:flex;flex-direction:column;align-items:flex-start;gap:5px;
  padding:16px 18px;border-radius:var(--radius);
  background:var(--card);
  border:1px solid var(--border);
  font-size:15px;font-weight:600;color:var(--text);text-align:left;
  transition:border-color .18s,transform .18s,box-shadow .18s;
}
.quick-btn:hover{
  border-color:var(--primary);
  transform:translateY(-2px);
  box-shadow:0 4px 12px rgba(99,102,241,.1);
  color:var(--primary);
}
.quick-btn small{font-size:13px;font-weight:400;color:var(--text-secondary);line-height:1.5}
.quick-btn:hover small{color:var(--text-secondary)}

/* ============================================================
   推荐位
   ============================================================ */
.feat-row{
  display:flex;align-items:center;gap:12px;
  padding:12px 0;border-bottom:1px solid var(--border);
}
.feat-row:last-child{border-bottom:0}
.feat-main{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}
.feat-main b{font-size:13.5px;font-weight:600}
.feat-row .order{width:72px;flex:none}
.feat-row-links{display:flex;gap:6px;justify-content:flex-end;padding:8px 0 0}

/* ============================================================
   Tabs
   ============================================================ */
.tabs{display:flex;gap:4px;margin-bottom:16px;flex-wrap:wrap}
.tab{
  padding:7px 14px;font-size:13px;color:var(--text-secondary);
  border-radius:var(--r-pill);
  transition:all .15s;
}
.tab:hover{color:var(--primary);background:var(--primary-soft)}
.tab.on{color:#fff;background:var(--primary);font-weight:500}
.tab .cnt{font-size:11.5px;opacity:.7;margin-left:4px}

/* ============================================================
   分页
   ============================================================ */
.pager{display:flex;gap:6px;align-items:center;margin-top:18px;flex-wrap:wrap;font-size:13px}
.pg{
  min-width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;
  padding:0 10px;border-radius:6px;
  background:#fff;border:1px solid var(--border);color:var(--text-secondary);
  transition:all .15s;
}
.pg:hover{border-color:var(--primary);color:var(--primary)}
.pg.active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}
.pg.disabled{opacity:.45;pointer-events:none}
.pg.info{border:0;background:none;color:var(--text-secondary);margin-left:auto}

/* ============================================================
   CSV
   ============================================================ */
.csv-cols{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}
.csv-cols code{
  background:#f4f5f9;color:#4338ca;
  padding:2px 8px;border-radius:5px;font-size:12px;
}
.tips{margin:0;padding-left:19px;font-size:13px;color:var(--text-secondary);line-height:1.95}
.tips code{background:#f4f5f9;padding:1px 5px;border-radius:4px;font-size:12px}
.import-report{
  background:var(--ok-bg);border-left:4px solid var(--ok);
  border-radius:var(--r-sm);padding:12px 16px;margin-top:16px;
  font-size:13px;color:#1b5e20;
}

/* ============================================================
   自定义代码
   ============================================================ */
.code-area{
  width:100%;min-height:200px;padding:14px 16px;border-radius:var(--r-sm);
  border:1px solid var(--border);background:#fbfbfd;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:12.8px;line-height:1.75;resize:vertical;outline:none;
  transition:border-color .15s,box-shadow .15s;
}
.code-area:focus{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(99,102,241,.12)}
.code-meta{display:flex;gap:12px;align-items:center;font-size:12px;color:#9ca3af;margin-top:7px;flex-wrap:wrap}

/* ============================================================
   菜单管理
   ============================================================ */
.menu-cols{display:grid;grid-template-columns:1fr 340px;gap:16px;align-items:start}
.menu-list{display:flex;flex-direction:column}
.menu-row{
  display:flex;align-items:center;gap:10px;padding:12px 16px;
  background:#fff;border-radius:var(--r-sm);
  box-shadow:var(--shadow);
  margin-bottom:8px;
}
.menu-row.child{margin-left:26px;background:#fbfbfd;box-shadow:none;border:1px solid var(--border)}
.menu-row .mr-b{flex:1;min-width:0}
.menu-row .mr-b b{display:block;font-size:13.5px;font-weight:600}
.menu-row .mr-b span{font-size:12px;color:#9ca3af}
.menu-row .mr-order{width:58px;flex:none}
.addbox{background:#fbfbfd;border-radius:var(--r-sm);padding:16px 18px}
.addbox h3{margin:0 0 14px;font-size:13.5px;font-weight:600}

/* ============================================================
   登录页
   ============================================================ */
.login-body{
  display:grid;place-items:center;min-height:100vh;padding:24px;
  background:linear-gradient(160deg,#20233a 0%,#1a1d29 100%);
}
.login-wrap{width:100%;max-width:390px}
.login-card{
  background:var(--card);border-radius:16px;
  padding:36px 32px;
  box-shadow:0 24px 60px -20px rgba(0,0,0,.45);
}
.login-brand{text-align:center;margin-bottom:22px}
.login-brand .bm{
  width:52px;height:52px;border-radius:14px;margin:0 auto 14px;font-size:17px;
}
.login-brand h1{margin:0 0 5px;font-size:19px;font-weight:600}
.login-sub{margin:0;font-size:13px;color:var(--text-secondary)}
.login-card .field input{height:42px}
.login-card .btn.primary{margin-top:8px}
.login-foot{margin:18px 0 0;text-align:center;font-size:12.5px;color:#9ca3af}
.login-card .flash{text-align:left}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1180px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .panels{grid-template-columns:1fr}
  .menu-cols{grid-template-columns:1fr}
}
@media (max-width:860px){
  .side{
    position:fixed;left:0;top:0;z-index:60;height:100vh;
    transform:translateX(-100%);
    transition:transform .24s;
    width:min(250px,82vw);
    box-shadow:2px 0 16px rgba(0,0,0,.3);
  }
  .side.open{transform:none}
  .main{width:100%}
  .content{padding:16px 14px 60px}
  .topbar{padding:0 14px}
  .form-grid{grid-template-columns:1fr}
  .quick{grid-template-columns:1fr 1fr}
  .ellipsis{max-width:170px}
}
@media (max-width:600px){
  .cards{grid-template-columns:1fr;gap:10px}
  .toolbar{flex-direction:column;align-items:stretch}
  .toolbar-right{margin-left:0}
  input[type="search"].inp{min-width:0;width:100%}
  .form-card-body{padding:16px 14px}
  .form-actions{padding:12px 14px;flex-wrap:wrap}
  .quick{grid-template-columns:1fr}
  .ops{flex-direction:row;justify-content:flex-end}
}

/* ============================================================
   兼容既有页面标记：panel 内直接放 h2 / panel-sub / 表格 / 表单
   （25 个后台页面沿用此结构，统一由这里兜底，避免逐页改标记）
   ============================================================ */
.panel{display:block}
.panel>h2{
  margin:0;padding:16px 20px 0;
  display:flex;align-items:center;gap:9px;flex-wrap:wrap;
  font-size:15px;font-weight:600;color:var(--text);
}
.panel>h2 .badge{margin-left:2px}
.panel>h2 .more{margin-left:auto;font-size:12.5px;font-weight:500}
.panel>.panel-sub{padding:0 20px;margin:6px 0 14px}
.panel>.tbl{margin:0}
.panel>p:not(.panel-sub):not(.empty-tip){padding:0 20px;margin:0 0 12px}
.panel>.empty-tip{padding:0 20px 18px}
.panel>.tips{padding:0 20px 4px;margin:0 0 12px}
.panel>.hint-note{margin:0 20px 18px}
.panel>.import-report{margin:0 20px 18px}
.panel>.flash{margin:0 20px 16px}
.panel>.addbox,.panel>.menu-list{margin:0 20px 18px}
.panel>.menu-cols{padding:0 20px 18px}
.panel>.feat-row{padding-left:20px;padding-right:20px}
.panel>.feat-row-links{padding-right:20px}
.panel>.code-meta{padding:0 20px}
.panel>.tabs{margin:0 20px 14px}
.panel>.pager{margin:0 20px 18px}
.panel>.batchbar{margin:0 20px 14px}
.panel>.toolbar{margin:0 20px 14px}
.panel>.crumb{margin:0 20px 14px}
.panel>.form-grid,.panel>.field{margin-left:20px;margin-right:20px}
.panel>:last-child{margin-bottom:0}
.panel>h2:last-child{padding-bottom:18px}

/* 表单卡片嵌在面板内时去掉自身卡片外观 */
.form-card.flat{background:none;box-shadow:none;border-radius:0;padding:0 20px 18px;overflow:visible}
.form-card.flat .form-actions{
  margin:18px -20px -18px;padding:14px 20px;
  background:#fbfbfd;border-top:1px solid var(--border);
}
.panel>form.form-card{padding:0 20px 18px}

/* 行内小表单 / 隐藏表单 */
.hidden-form{display:none}
.inline-form{display:inline;margin:0}

/* 左右分栏（如「新增分类 | 分类列表」） */
.panels-aside{grid-template-columns:400px minmax(0,1fr)}
@media (max-width:1180px){.panels-aside{grid-template-columns:1fr}}

/* 纵向堆叠 */
.stack{display:flex;flex-direction:column;gap:16px}
.stack>.panel{margin-bottom:0}

/* 表格内勾选列 */
.tbl .row-chk{width:38px;padding-right:0}
.tbl .row-chk input{margin:0}
.tbl-tools .title-cell b a{font-weight:600}

/* 移动端侧栏遮罩 */
.side-mask{
  position:fixed;inset:0;background:rgba(16,18,32,.45);
  z-index:55;opacity:0;pointer-events:none;transition:opacity .24s;
}
.side-mask.on{opacity:1;pointer-events:auto}
@media (min-width:861px){.side-mask{display:none}}

/* ============================================================
   页面骨架 v0.1.1：顶栏面包屑 + 页面大标题 + 宽松表单
   ============================================================ */

/* 顶栏面包屑 */
.crumb-bar{
  display:flex;align-items:center;gap:8px;flex:1;min-width:0;
  font-size:13.5px;color:var(--text-secondary);
}
.crumb-bar a{color:var(--text-secondary)}
.crumb-bar a:hover{color:var(--primary)}
.crumb-bar b{color:var(--text);font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cb-sep{color:#c8ccd6;flex:none}
.topbar #sideToggle{width:32px;height:32px;padding:0;flex:none;color:var(--text-secondary)}
.topbar #sideToggle svg{width:17px;height:17px}
.topbar #sideToggle:hover{background:#f1f2f6;color:var(--text)}

/* 页面大标题区 */
.page-head{
  display:flex;align-items:flex-start;justify-content:space-between;
  gap:16px;flex-wrap:wrap;margin:0 0 18px;
}
.page-head h1{
  margin:0;font-size:23px;font-weight:700;line-height:1.32;
  letter-spacing:-.02em;color:var(--text);
}
.ph-sub{
  margin:6px 0 0;font-size:13.5px;color:var(--text-secondary);line-height:1.6;
}
.ph-sub b{color:var(--text-secondary);font-weight:600}

/* 提示条与标题区之间留白收紧一点 */
.page-head + .page-desc{margin-top:0}
.page-desc .pd-d{margin:0}

/* ---------- 编辑页：宽松排版 ---------- */
.form-card{max-width:920px}
.form-card-body{padding:28px 32px 30px}
.form-card-body > .form-section:first-child{margin-top:0}
.form-section{margin-bottom:26px}
.form-section-h{
  margin:0 0 18px;padding-bottom:11px;
}
.form-grid{gap:20px 24px}
.field{margin-bottom:20px;gap:7px}
.field label{font-size:13.5px;margin-bottom:0}
.field input[type=text],.field input[type=password],.field input[type=number],
.field input[type=url],.field input[type=email],.field input[type=datetime-local],
.field input[type=date],.field select,.field textarea{
  padding:10px 13px;font-size:14px;line-height:1.55;
  border-radius:8px;
}
.field textarea{min-height:104px}
.field .tip{font-size:12.5px;line-height:1.7;color:#9aa0ac}
.checks-row{gap:12px 22px}
.form-actions{padding:18px 32px;gap:12px}
.form-actions .btn{min-width:88px;height:38px}
.form-actions .btn.primary{min-width:110px}

/* ---------- 列表页：操作列改为紧凑图标 ---------- */
.ops{display:flex;gap:2px;align-items:center;justify-content:flex-end;
  white-space:nowrap;flex-wrap:nowrap}
.act{
  width:30px;height:30px;flex:none;
  display:inline-grid;place-items:center;
  border-radius:7px;color:var(--text-secondary);
  transition:background .15s,color .15s;
}
.act svg{width:15px;height:15px}
.act:hover{background:#f1f2f6;color:var(--primary)}
.act.danger:hover{background:var(--bad-bg);color:var(--bad)}
.tbl th.col-ops{width:132px;text-align:right}
.tbl td.ops{width:132px;text-align:right;padding-right:14px}
.tbl th.col-ops{white-space:nowrap}

/* ---------- 工具条：收进白卡片，减少碎片感 ---------- */
.toolbar{
  background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);
  padding:12px 14px;margin-bottom:14px;
}
.toolbar .inp,.toolbar select{background:#fff}
.batchbar{background:#f2f3f7;border-radius:8px}

/* ---------- 窄屏 ---------- */
@media (max-width:860px){
  .page-head h1{font-size:20px}
  .form-card-body{padding:20px 18px 22px}
  .form-actions{padding:14px 18px}
  .form-card{max-width:none}
}