/* 系统管理后台样式 */
body{background:#eceff6}
.admin-shell{display:flex;min-height:100vh}
.a-side{width:236px;flex:none;padding:22px 14px;position:sticky;top:0;height:100vh;display:flex;flex-direction:column}
.a-side .brand{display:flex;gap:11px;align-items:center;padding:4px 8px 24px}
.a-side .brand .mk{width:38px;height:38px;border-radius:12px;background:linear-gradient(145deg,#2b3550,#1b2338);
  color:#fff;display:grid;place-items:center;font-weight:700;box-shadow:var(--sd-1)}
.a-side .brand b{font-size:14.5px;display:block}
.a-side .brand span{font-size:11px;color:var(--muted)}
.a-nav{display:flex;flex-direction:column;gap:5px}
.a-nav a{display:flex;align-items:center;gap:10px;padding:11px 13px;border-radius:12px;font-size:13.5px;
  color:var(--text-2);cursor:pointer;transition:.15s}
.a-nav a:hover{background:rgba(255,255,255,.6);color:var(--brand)}
.a-nav a.on{background:linear-gradient(145deg,#2b3550,#1b2338);color:#fff;box-shadow:var(--sd-2)}
.a-nav svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.a-main{flex:1;min-width:0;display:flex;flex-direction:column}
.a-top{height:66px;display:flex;align-items:center;justify-content:space-between;padding:0 26px;
  position:sticky;top:0;z-index:20;background:rgba(236,239,246,.85);backdrop-filter:blur(10px)}
.a-top h2{font-size:16.5px}
.a-top .sub{font-size:12px;color:var(--muted)}
.a-content{padding:2px 26px 40px}
@media(max-width:900px){.a-side{display:none}.a-content{padding:2px 14px 30px}}

.login-wrap{display:grid;place-items:center;min-height:100vh;
  background:radial-gradient(800px 500px at 15% -10%,#dfe7ff 0,transparent 60%),
             radial-gradient(700px 500px at 100% 100%,#e9e2ff 0,transparent 55%),#eef1f7}
.login-box{width:100%;max-width:400px;background:var(--card);border-radius:26px;padding:36px 32px;box-shadow:var(--sd-3)}
.login-box .mk{width:52px;height:52px;border-radius:16px;background:linear-gradient(145deg,#2b3550,#1b2338);
  color:#fff;display:grid;place-items:center;font-size:22px;font-weight:700;margin-bottom:18px}
.login-box h1{font-size:20px}
.login-box p.sub{color:var(--muted);font-size:13px;margin:6px 0 22px}

.kpi{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
@media(max-width:1100px){.kpi{grid-template-columns:repeat(2,1fr)}}
.kpi .k{background:var(--card);border-radius:18px;padding:16px 18px;box-shadow:var(--sd-2)}
.kpi .k .lbl{font-size:12.5px;color:var(--muted)}
.kpi .k .num{font-size:25px;font-weight:600;margin-top:4px;font-variant-numeric:tabular-nums}
.kpi .k .num small{font-size:12px;font-weight:400;color:var(--muted);margin-left:3px}

.trend{display:flex;align-items:flex-end;gap:14px;height:150px;padding:8px 4px}
.trend .t{flex:1;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;gap:6px;height:100%}
.trend .bars{display:flex;gap:4px;align-items:flex-end;height:100%;width:100%;justify-content:center}
.trend .b{width:12px;border-radius:5px 5px 0 0;min-height:2px}
.trend .b.u{background:linear-gradient(180deg,#7c96ff,#4b6cf5)}
.trend .b.a{background:linear-gradient(180deg,#a99bff,#7f5bf0)}
.trend .t span{font-size:11px;color:var(--muted)}

.filters{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:14px}
.filters .input{max-width:220px}
.legend{display:flex;gap:14px;font-size:12px;color:var(--muted)}
.legend i{display:inline-block;width:9px;height:9px;border-radius:3px;margin-right:5px}

.settings-tabs{display:flex;gap:6px;margin-bottom:18px;border-bottom:1px solid var(--line);overflow-x:auto}
.settings-tabs button{border:none;background:none;padding:10px 15px;font-size:13.5px;color:var(--muted);
  cursor:pointer;border-bottom:2px solid transparent;white-space:nowrap}
.settings-tabs button.on{color:var(--brand);font-weight:600;border-bottom-color:var(--brand)}
.set-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}
@media(max-width:820px){.set-grid{grid-template-columns:1fr}}
.help{font-size:11.5px;color:var(--muted);margin-top:4px;line-height:1.7;padding-left:3px}
.switch{display:inline-flex;align-items:center;gap:9px;cursor:pointer;font-size:13.5px}
.switch input{display:none}
.switch i{width:42px;height:24px;border-radius:999px;background:var(--bg-2);box-shadow:var(--sd-in-sm);
  position:relative;transition:.2s}
.switch i::after{content:"";position:absolute;width:18px;height:18px;border-radius:50%;background:#fff;
  top:3px;left:3px;transition:.2s;box-shadow:0 2px 5px rgba(0,0,0,.18)}
.switch input:checked + i{background:linear-gradient(145deg,#5577f7,#4363ee)}
.switch input:checked + i::after{left:21px}

.tbl-actions{display:flex;gap:6px;flex-wrap:wrap}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12.5px}
.pill{display:inline-block;padding:1px 8px;border-radius:999px;font-size:11.5px;background:rgba(123,132,153,.12);color:var(--muted)}