/* ============================================================
   小新智赋 · 管理后台样式
   ============================================================ */

.admin-shell{display:grid;grid-template-columns:236px minmax(0,1fr);min-height:100vh;background:#f4f7fd}

/* 侧边栏 */
.admin-side{
  background:linear-gradient(180deg,#141d33,#1c2843);color:#b9c6dd;
  display:flex;flex-direction:column;position:sticky;top:0;height:100vh;overflow-y:auto;
}
.admin-side .side-brand{display:flex;align-items:center;gap:10px;padding:20px 18px;border-bottom:1px solid rgba(255,255,255,.07)}
.admin-side .side-brand b{color:#fff;font-family:var(--font-serif);font-size:16px;letter-spacing:1.6px}
.admin-side .side-brand small{display:block;font-size:10.5px;color:#7f90b0;letter-spacing:1px}
.admin-nav{padding:14px 12px;flex:1}
.admin-nav .group-title{font-size:11px;letter-spacing:1.6px;color:#6b7c9c;text-transform:uppercase;padding:14px 10px 8px;font-weight:700}
.admin-nav a{display:flex;align-items:center;gap:10px;height:40px;padding:0 12px;border-radius:10px;font-size:13.5px;color:#b9c6dd;transition:all var(--ease);margin-bottom:2px}
.admin-nav a:hover{background:rgba(255,255,255,.07);color:#fff}
.admin-nav a.active{background:linear-gradient(135deg,var(--blue-500),var(--indigo-500));color:#fff;box-shadow:0 8px 20px rgba(59,130,246,.32)}
.admin-nav a .ico{width:18px;text-align:center;font-size:15px}
.admin-nav a .dot-badge{margin-left:auto;font-size:11px;background:var(--red-500);color:#fff;border-radius:999px;padding:1px 7px}
.admin-side .side-foot{padding:14px;border-top:1px solid rgba(255,255,255,.07);font-size:12px;color:#7f90b0}
.admin-side .side-foot a{color:#9fb2d6}
.admin-side .side-foot a:hover{color:#fff}

/* 主区域 */
.admin-main{display:flex;flex-direction:column;min-width:0}
.admin-top{
  height:64px;background:#fff;border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:16px;padding:0 26px;position:sticky;top:0;z-index:50;
}
.admin-top h1{font-size:17px;font-weight:600;color:var(--ink)}
.admin-top .crumb{font-size:12.5px;color:var(--muted)}
.admin-top .right{margin-left:auto;display:flex;align-items:center;gap:12px}
.admin-content{padding:26px;display:flex;flex-direction:column;gap:22px}

/* 统计卡片 */
.stat-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px}
.stat-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 20px;box-shadow:var(--shadow-xs);transition:all var(--ease)}
.stat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.stat-card .label{font-size:12.5px;color:var(--muted);display:flex;align-items:center;gap:7px}
.stat-card .value{font-family:var(--font-serif);font-size:27px;color:var(--ink);margin-top:8px;letter-spacing:.5px}
.stat-card .value small{font-size:13px;color:var(--muted);font-family:var(--font-sans);margin-left:4px}
.stat-card .trend{font-size:12px;color:var(--green-600);margin-top:6px}
.stat-card.blue .value{color:var(--blue-600)}
.stat-card.amber .value{color:var(--amber-600)}
.stat-card.green .value{color:var(--green-600)}
.stat-card.indigo .value{color:var(--indigo-600)}

/* 面板 */
.panel{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-xs);overflow:hidden}
.panel-head{display:flex;align-items:center;gap:12px;padding:16px 20px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.panel-head h3{font-size:15px;font-weight:600;color:var(--ink)}
.panel-head .right{margin-left:auto;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.panel-body{padding:20px}
.panel-body.flush{padding:0}
.two-col{display:grid;grid-template-columns:repeat(auto-fit,minmax(360px,1fr));gap:22px}

/* 表格 */
.table-wrap{overflow-x:auto}
table.data{width:100%;border-collapse:collapse;font-size:13.5px}
table.data th{
  text-align:left;font-size:12px;letter-spacing:.6px;color:var(--muted);font-weight:700;
  padding:12px 14px;background:#f8fafd;border-bottom:1px solid var(--line);white-space:nowrap;
}
table.data td{padding:12px 14px;border-bottom:1px solid var(--line);color:var(--ink-soft);vertical-align:middle}
table.data tbody tr:hover{background:#fbfdff}
table.data tbody tr:last-child td{border-bottom:0}
table.data .title-cell{color:var(--ink);font-weight:600;max-width:320px}
table.data .actions{display:flex;gap:6px;white-space:nowrap}
.mini-btn{height:28px;padding:0 11px;border-radius:8px;border:1px solid var(--line);background:#fff;font-size:12.5px;color:var(--ink-soft);transition:all var(--ease)}
.mini-btn:hover{border-color:var(--blue-300);color:var(--blue-600)}
.mini-btn.danger:hover{border-color:#fca5a5;color:var(--red-600);background:var(--red-50)}
.mini-btn.primary{background:linear-gradient(135deg,var(--blue-500),var(--indigo-500));color:#fff;border-color:transparent}
.mini-btn.primary:hover{color:#fff}

/* 状态标签 */
.pill{display:inline-flex;align-items:center;gap:5px;height:22px;padding:0 9px;border-radius:999px;font-size:11.5px;font-weight:600}
.pill-green{background:var(--green-50);color:var(--green-600)}
.pill-amber{background:var(--amber-50);color:var(--amber-600)}
.pill-red{background:var(--red-50);color:var(--red-600)}
.pill-gray{background:var(--gray-100);color:var(--gray-600)}
.pill-blue{background:var(--blue-50);color:var(--blue-600)}

/* 筛选条 */
.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.toolbar .search{position:relative;min-width:220px;flex:1;max-width:340px}
.toolbar .search input{width:100%;height:38px;padding:0 12px 0 36px;border:1px solid var(--line);border-radius:10px;outline:none}
.toolbar .search input:focus{border-color:var(--blue-400);box-shadow:0 0 0 3px rgba(59,130,246,.12)}
.toolbar .search .ico{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--muted);font-size:14px}
.toolbar select{height:38px;border:1px solid var(--line);border-radius:10px;padding:0 12px;outline:none;background:#fff}

/* 设置页 */
.settings-tabs{display:flex;gap:8px;flex-wrap:wrap}
.settings-tabs button{height:38px;padding:0 18px;border-radius:11px;border:1px solid var(--line);background:#fff;font-size:13.5px;color:var(--ink-soft);font-weight:600;transition:all var(--ease)}
.settings-tabs button:hover{border-color:var(--blue-300);color:var(--blue-600)}
.settings-tabs button.active{background:linear-gradient(135deg,var(--blue-500),var(--indigo-500));color:#fff;border-color:transparent}
.setting-row{display:grid;grid-template-columns:280px minmax(0,1fr);gap:18px;padding:16px 0;border-bottom:1px dashed var(--line);align-items:start}
.setting-row:last-child{border-bottom:0}
.setting-row .meta label{font-size:13.5px;font-weight:600;color:var(--ink);display:block}
.setting-row .meta .key{font-size:11.5px;color:var(--muted);font-family:ui-monospace,Menlo,Consolas,monospace;margin-top:3px}
.setting-row .meta .tip{font-size:12px;color:var(--muted);margin-top:5px;line-height:1.7}
.setting-row .control input[type=text],.setting-row .control input[type=password],.setting-row .control input[type=number],.setting-row .control select,.setting-row .control textarea{
  width:100%;border:1px solid var(--line);border-radius:10px;padding:0 12px;height:40px;outline:none;background:#fff;
}
.setting-row .control textarea{height:auto;min-height:96px;padding:11px 12px;line-height:1.8;resize:vertical}
.setting-row .control input:focus,.setting-row .control select:focus,.setting-row .control textarea:focus{border-color:var(--blue-400);box-shadow:0 0 0 3px rgba(59,130,246,.12)}
.switch{position:relative;display:inline-block;width:46px;height:26px}
.switch input{opacity:0;width:0;height:0}
.switch .slider{position:absolute;cursor:pointer;inset:0;background:var(--gray-300);border-radius:999px;transition:var(--ease)}
.switch .slider::before{content:'';position:absolute;height:20px;width:20px;left:3px;top:3px;background:#fff;border-radius:50%;transition:var(--ease);box-shadow:0 1px 3px rgba(0,0,0,.2)}
.switch input:checked + .slider{background:linear-gradient(135deg,var(--blue-500),var(--indigo-500))}
.switch input:checked + .slider::before{transform:translateX(20px)}

.note{font-size:12.5px;color:var(--muted);line-height:1.9;background:#f8fafd;border:1px dashed var(--line);border-radius:12px;padding:14px 16px}
.note b{color:var(--ink-soft)}

/* 表单 */
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.form-grid .full{grid-column:1/-1}

/* 后台登录门 */
.admin-gate{display:grid;place-items:center;min-height:100vh;padding:24px}
.admin-gate .box{background:#fff;border:1px solid var(--line);border-radius:20px;padding:34px;width:min(420px,100%);box-shadow:var(--shadow-lg);text-align:center}

@media (max-width:1000px){
  .admin-shell{grid-template-columns:1fr}
  .admin-side{position:static;height:auto;flex-direction:column}
  .admin-nav{display:flex;overflow-x:auto;gap:6px;padding:12px}
  .admin-nav .group-title{display:none}
  .admin-nav a{white-space:nowrap}
  .setting-row{grid-template-columns:1fr}
}