:root{
  --bg:#0e1420; --bg2:#141c2b; --card:#182234; --line:#243149; --txt:#e6edf5; --dim:#8fa3b8;
  --primary:#2f7cf6; --primary2:#1b5fd0; --ok:#37d67a; --warn:#ffb020; --danger:#f2545b;
  --radius:12px;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--txt);font-size:14px;-webkit-font-smoothing:antialiased}
a{color:var(--primary);text-decoration:none}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:14px;background:var(--bg2);color:var(--txt);
  border:1px solid var(--line);border-radius:8px;padding:9px 12px;outline:none;width:100%}
input:focus,select:focus,textarea:focus{border-color:var(--primary)}
label{display:block;font-size:12.5px;color:var(--dim);margin:12px 0 5px}

/* ---------- 登录 ---------- */
#login{display:flex;align-items:center;justify-content:center;min-height:100vh;
  background:radial-gradient(900px 500px at 30% 0%,#1b3a5c 0%,#0d1520 60%,#080b10 100%)}
.login-box{width:380px;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:34px 30px;
  box-shadow:0 20px 60px rgba(0,0,0,.45)}
.login-box h1{font-size:20px;margin-bottom:6px;letter-spacing:.5px}
.login-box p{color:var(--dim);font-size:13px;margin-bottom:22px}
.login-box .btn{margin-top:20px;width:100%;justify-content:center}

/* ---------- 布局 ---------- */
#app{display:none;min-height:100vh}
.sidebar{position:fixed;left:0;top:0;bottom:0;width:206px;background:var(--bg2);border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:18px 0}
.logo{padding:0 20px 18px;font-size:15px;font-weight:600;letter-spacing:.5px;border-bottom:1px solid var(--line);margin-bottom:10px}
.logo small{display:block;color:var(--dim);font-weight:400;font-size:11.5px;margin-top:4px;letter-spacing:0}
.nav{flex:1;overflow:auto;padding:6px 10px}
.nav a{display:flex;align-items:center;gap:9px;padding:10px 12px;border-radius:9px;color:var(--dim);font-size:13.5px;margin-bottom:2px}
.nav a:hover{background:rgba(255,255,255,.05);color:var(--txt)}
.nav a.on{background:linear-gradient(90deg,rgba(47,124,246,.22),rgba(47,124,246,.05));
  color:#cfe1ff;box-shadow:inset 2px 0 0 var(--primary)}
.nav a .ic{width:16px;text-align:center;opacity:.9}
.sidebar .foot{padding:12px 16px;border-top:1px solid var(--line);font-size:12px;color:var(--dim)}
.main{margin-left:206px;padding:22px 26px 60px}
.top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;gap:12px;flex-wrap:wrap}
.top h2{font-size:18px;font-weight:600}
.top .user{color:var(--dim);font-size:13px;display:flex;gap:12px;align-items:center}

/* ---------- 通用组件 ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;margin-bottom:16px}
.grid{display:grid;gap:14px}
.g4{grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}
.g2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.kpi{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px}
.kpi .t{color:var(--dim);font-size:12.5px;margin-bottom:10px}
.kpi .v{font-size:24px;font-weight:600;letter-spacing:.5px}
.kpi .v small{font-size:13px;color:var(--dim);font-weight:400;margin-left:4px}
.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:var(--bg2);
  color:var(--txt);border-radius:8px;padding:8px 14px;font-size:13px;transition:.15s}
.btn:hover{border-color:var(--primary);color:#fff}
.btn.primary{background:linear-gradient(180deg,var(--primary),var(--primary2));border-color:transparent;color:#fff}
.btn.primary:hover{filter:brightness(1.08)}
.btn.mini{padding:5px 10px;font-size:12.5px}
.btn.danger{border-color:rgba(242,84,91,.5);color:#ffb9bc}
.btn.danger:hover{background:rgba(242,84,91,.14)}
.btn.ok{border-color:rgba(55,214,122,.5);color:#a9f0c6}
.btn:disabled{opacity:.5;cursor:not-allowed}
table{width:100%;border-collapse:collapse;font-size:13.3px}
th{text-align:left;color:var(--dim);font-weight:500;padding:10px 10px;border-bottom:1px solid var(--line);white-space:nowrap;font-size:12.7px}
td{padding:11px 10px;border-bottom:1px solid rgba(36,49,73,.6);vertical-align:middle}
tr:hover td{background:rgba(255,255,255,.022)}
.tag{display:inline-block;font-size:11.5px;padding:2px 9px;border-radius:20px;border:1px solid;
  background:rgba(255,255,255,.03)}
.tag.ok{color:#7ee2a8;border-color:rgba(55,214,122,.35);background:rgba(55,214,122,.1)}
.tag.warn{color:#ffd08a;border-color:rgba(255,176,32,.35);background:rgba(255,176,32,.1)}
.tag.dim{color:var(--dim);border-color:var(--line)}
.tag.danger{color:#ffb9bc;border-color:rgba(242,84,91,.4);background:rgba(242,84,91,.1)}
.tag.info{color:#9dc6ff;border-color:rgba(47,124,246,.4);background:rgba(47,124,246,.12)}
.muted{color:var(--dim)}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.sp{flex:1}
.empty{text-align:center;color:var(--dim);padding:38px 0;font-size:13px}
.bar{display:flex;align-items:flex-end;gap:10px;height:130px;margin-top:12px}
.bar .col{flex:1;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;gap:6px}
.bar .col i{display:block;width:100%;max-width:38px;background:linear-gradient(180deg,#4f9bff,#2559b8);
  border-radius:5px 5px 0 0;min-height:4px}
.bar .col span{font-size:11px;color:var(--dim);white-space:nowrap}

/* ---------- 弹窗 ---------- */
.mask{position:fixed;inset:0;background:rgba(4,8,14,.66);backdrop-filter:blur(3px);
  display:none;align-items:flex-start;justify-content:center;z-index:50;overflow:auto;padding:40px 16px}
.mask.show{display:flex}
.modal{width:560px;max-width:100%;background:var(--card);border:1px solid var(--line);border-radius:14px;
  box-shadow:0 30px 80px rgba(0,0,0,.6);padding:22px 24px}
.modal h3{font-size:16px;margin-bottom:6px}
.modal .body{margin-top:6px}
.modal .foot{display:flex;justify-content:flex-end;gap:10px;margin-top:22px}
.cols{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}
#toast{position:fixed;left:50%;top:22px;transform:translateX(-50%);background:#0b1220;border:1px solid var(--line);
  color:#e6edf5;padding:11px 20px;border-radius:10px;font-size:13.5px;z-index:99;display:none;
  box-shadow:0 12px 40px rgba(0,0,0,.5)}
#toast.err{border-color:rgba(242,84,91,.6);color:#ffc9cb}
@media(max-width:820px){
  .sidebar{position:static;width:100%;height:auto}
  .main{margin-left:0;padding:16px}
  .nav{display:flex;overflow:auto;gap:4px}
  .nav a{white-space:nowrap}
  .cols{grid-template-columns:1fr}
}