:root{
  --bg:#f5f6fa; --panel:#ffffff; --ink:#1a1d29; --ink2:#5b6273; --ink3:#9aa1b1;
  --line:#e8eaf0; --brand:#4f46e5; --brand-soft:#eef0ff;
  --ok:#0f9d58; --warn:#e8a33d; --bad:#e05252;
  --radius:14px; --shadow:0 1px 2px rgba(20,25,50,.04),0 8px 24px rgba(20,25,50,.06);
}
*{margin:0;padding:0;box-sizing:border-box}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg); color:var(--ink); font-size:14px; line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
button{font-family:inherit;cursor:pointer;border:none;background:none;font-size:14px}
input,select,textarea{font-family:inherit;font-size:14px;color:var(--ink)}
a{color:var(--brand);text-decoration:none}
.hide{display:none!important}

/* ---------- 登录 ---------- */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;
  background:radial-gradient(1200px 600px at 15% -10%,#e6e9ff 0%,transparent 55%),
             radial-gradient(900px 500px at 95% 110%,#e4f6ff 0%,transparent 55%),var(--bg);}
.auth-card{width:100%;max-width:900px;display:flex;background:#fff;border-radius:22px;overflow:hidden;
  box-shadow:0 20px 60px rgba(30,40,90,.12);min-height:480px}
.auth-left{flex:0 0 42%;background:linear-gradient(150deg,#5b5bf0,#7b6cf6 45%,#3fb6f0);color:#fff;
  padding:44px 36px;display:flex;flex-direction:column;justify-content:center}
.auth-left h1{font-size:26px;letter-spacing:.5px;margin-bottom:10px}
.auth-left p{opacity:.9;font-size:14px;line-height:1.9}
.auth-left ul{list-style:none;margin-top:28px;font-size:13px;opacity:.95}
.auth-left li{padding:6px 0 6px 20px;position:relative}
.auth-left li:before{content:"";position:absolute;left:0;top:14px;width:6px;height:6px;border-radius:50%;background:rgba(255,255,255,.8)}
.auth-right{flex:1;padding:48px 44px;display:flex;flex-direction:column;justify-content:center}
.auth-tabs{display:flex;gap:22px;margin-bottom:26px}
.auth-tabs button{font-size:16px;color:var(--ink3);padding-bottom:8px;font-weight:500}
.auth-tabs button.on{color:var(--ink);font-weight:600;border-bottom:2px solid var(--brand)}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--ink2);margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;padding:11px 13px;border:1px solid var(--line);
  border-radius:10px;background:#fbfbfe;outline:none;transition:.18s}
.field input:focus,.field select:focus,.field textarea:focus{border-color:#b7b9f7;background:#fff;
  box-shadow:0 0 0 3px rgba(79,70,229,.09)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 18px;border-radius:10px;
  background:var(--brand);color:#fff;font-weight:500;transition:.18s}
.btn:hover{background:#4338ca}
.btn:disabled{opacity:.55;cursor:not-allowed}
.btn.ghost{background:#fff;color:var(--ink2);border:1px solid var(--line)}
.btn.ghost:hover{background:#f7f8fc;color:var(--ink)}
.btn.sm{padding:6px 12px;font-size:13px;border-radius:8px}
.btn.danger{background:#fdecec;color:var(--bad)}
.btn.danger:hover{background:#fbdcdc}
.btn.block{width:100%;padding:12px}
.msg{margin-top:12px;font-size:13px;min-height:20px}
.msg.err{color:var(--bad)} .msg.ok{color:var(--ok)}
.auth-tip{margin-top:20px;font-size:12px;color:var(--ink3);line-height:1.7}

/* ---------- 布局 ---------- */
.shell{display:flex;min-height:100vh}
.side{width:216px;background:#fff;border-right:1px solid var(--line);padding:20px 12px;display:flex;
  flex-direction:column;position:fixed;top:0;bottom:0;left:0;z-index:20}
.logo{display:flex;align-items:center;gap:9px;padding:4px 10px 20px;font-weight:700;font-size:16px}
.logo i{width:26px;height:26px;border-radius:8px;background:linear-gradient(140deg,#5b5bf0,#3fb6f0);
  display:inline-block;flex:0 0 26px}
.nav{display:flex;flex-direction:column;gap:2px}
.nav button{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;color:var(--ink2);
  text-align:left;transition:.15s}
.nav button:hover{background:#f6f7fb;color:var(--ink)}
.nav button.on{background:var(--brand-soft);color:var(--brand);font-weight:600}
.nav .ico{width:16px;text-align:center;opacity:.9}
.side-foot{margin-top:auto;border-top:1px solid var(--line);padding-top:14px}
.side-foot .who{display:flex;align-items:center;gap:9px;padding:6px 10px 12px}
.avatar{width:30px;height:30px;border-radius:50%;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-weight:600;font-size:13px;flex:0 0 30px}
.who .n{font-size:13px;font-weight:600;line-height:1.3}
.who .r{font-size:11px;color:var(--ink3)}

.main{margin-left:216px;flex:1;padding:26px 30px 60px;max-width:1180px}
.page-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:22px;gap:16px;flex-wrap:wrap}
.page-head h2{font-size:21px;font-weight:700;letter-spacing:.3px}
.page-head .sub{color:var(--ink3);font-size:13px;margin-top:3px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.pad{padding:20px 22px}
.grid{display:grid;gap:16px}
.g4{grid-template-columns:repeat(4,1fr)}
.g2{grid-template-columns:1fr 1fr}
.g3{grid-template-columns:repeat(3,1fr)}
.kpi{padding:18px 20px}
.kpi .lab{font-size:12px;color:var(--ink3);margin-bottom:8px}
.kpi .val{font-size:26px;font-weight:700;letter-spacing:-.5px}
.kpi .val small{font-size:13px;font-weight:500;color:var(--ink3);margin-left:2px}
.kpi .foot{font-size:12px;color:var(--ink3);margin-top:6px}

table{width:100%;border-collapse:collapse}
th{text-align:left;font-size:12px;color:var(--ink3);font-weight:500;padding:10px 12px;
  border-bottom:1px solid var(--line);white-space:nowrap}
td{padding:12px;border-bottom:1px solid #f2f3f7;font-size:13px;vertical-align:middle}
tr:last-child td{border-bottom:none}
tbody tr:hover{background:#fafbff}
.tag{display:inline-block;padding:2px 9px;border-radius:20px;font-size:12px;line-height:1.7}
.tag.ok{background:#e8f7ef;color:#0f8a4d}
.tag.mid{background:#fdf3e3;color:#b8791f}
.tag.no{background:#fdecec;color:#c94b4b}
.tag.plain{background:#f1f3f9;color:var(--ink2)}
.empty{text-align:center;padding:44px 20px;color:var(--ink3);font-size:13px}
.empty b{display:block;color:var(--ink2);font-size:14px;margin-bottom:6px}

.bar{height:8px;border-radius:6px;background:#eef0f6;overflow:hidden}
.bar>i{display:block;height:100%;border-radius:6px;background:linear-gradient(90deg,#6c6cf5,#3fb6f0)}

.row{display:flex;align-items:center;gap:10px}
.between{display:flex;align-items:center;justify-content:space-between;gap:12px}
.muted{color:var(--ink3);font-size:12px}
.sec-title{font-size:14px;font-weight:600;margin-bottom:14px}

.toast{position:fixed;right:24px;bottom:24px;background:#1f2333;color:#fff;padding:11px 18px;border-radius:10px;
  font-size:13px;box-shadow:0 10px 30px rgba(0,0,0,.18);opacity:0;transform:translateY(8px);
  transition:.25s;z-index:99;max-width:360px}
.toast.on{opacity:1;transform:translateY(0)}
.toast.err{background:#c94b4b}

.modal{position:fixed;inset:0;background:rgba(20,24,40,.42);display:flex;align-items:center;
  justify-content:center;z-index:80;padding:20px}
.modal .box{background:#fff;border-radius:16px;width:100%;max-width:520px;padding:24px;
  box-shadow:0 24px 60px rgba(0,0,0,.2);max-height:88vh;overflow:auto}
.modal h3{font-size:16px;margin-bottom:16px}
.modal .acts{display:flex;justify-content:flex-end;gap:10px;margin-top:20px}

.answer{background:#f8f9fd;border:1px solid var(--line);border-radius:10px;padding:12px 14px;
  font-size:12.5px;color:var(--ink2);white-space:pre-wrap;line-height:1.85;max-height:190px;overflow:auto}
.art{white-space:pre-wrap;line-height:1.95;font-size:14px;color:#2b2f3d}
.chips{display:flex;flex-wrap:wrap;gap:7px}
.chip{background:#f4f5fa;border-radius:8px;padding:5px 10px;font-size:12.5px;color:var(--ink2);
  display:inline-flex;align-items:center;gap:7px}
.chip button{color:var(--ink3);font-size:14px;line-height:1}
.chip button:hover{color:var(--bad)}

.banner{display:flex;align-items:center;gap:10px;padding:11px 15px;border-radius:10px;font-size:13px;
  background:#fff8e8;border:1px solid #f6e3bb;color:#8a6216;margin-bottom:18px}
.banner b{font-weight:600}

@media(max-width:900px){
  .g4{grid-template-columns:1fr 1fr}
  .g3,.g2{grid-template-columns:1fr}
  .auth-card{flex-direction:column;min-height:0}
  .auth-left{flex:none;padding:28px 26px}
  .auth-right{padding:30px 26px}
  .side{width:64px;padding:16px 8px}
  .side .logo span,.nav button span.lbl,.side-foot .who .txt{display:none}
  .nav button{justify-content:center}
  .main{margin-left:64px;padding:20px 16px 50px}
}