:root{
  --primary:#f97316; --primary-d:#ea580c; --primary-l:#fff7ed;
  --bg:#f5f6f8; --panel:#ffffff; --ink:#1f2430; --muted:#6b7280;
  --line:#e7e9ee; --ok:#16a34a; --warn:#d97706; --bad:#dc2626; --info:#2563eb;
  --radius:12px; --shadow:0 1px 3px rgba(16,24,40,.06),0 6px 20px rgba(16,24,40,.05);
}
*{box-sizing:border-box;margin:0;padding:0}
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:1.5}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:14px}
/* layout */
.shell{display:flex;min-height:100vh}
.sidebar{width:220px;background:#1f2430;color:#cbd5e1;flex-shrink:0;display:flex;flex-direction:column}
.sidebar .brand{padding:18px 20px;font-size:17px;font-weight:700;color:#fff;display:flex;align-items:center;gap:10px}
.sidebar .brand .logo{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--primary),#fb923c);display:flex;align-items:center;justify-content:center;font-size:16px}
.sidebar nav{flex:1;padding:8px 10px;overflow:auto}
.sidebar nav a{display:flex;align-items:center;gap:11px;padding:11px 14px;border-radius:9px;color:#cbd5e1;margin-bottom:3px;font-size:14px}
.sidebar nav a:hover{background:rgba(255,255,255,.06)}
.sidebar nav a.active{background:var(--primary);color:#fff}
.sidebar nav a .ic{width:18px;text-align:center}
.sidebar .foot{padding:14px 20px;border-top:1px solid rgba(255,255,255,.08);font-size:12px;color:#8b95a7}
.main{flex:1;display:flex;flex-direction:column;min-width:0}
.topbar{height:60px;background:var(--panel);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 24px;position:sticky;top:0;z-index:20}
.topbar h1{font-size:17px;font-weight:600}
.topbar .user{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.topbar .avatar{width:34px;height:34px;border-radius:50%;background:var(--primary-l);color:var(--primary-d);display:flex;align-items:center;justify-content:center;font-weight:700}
.content{padding:24px;overflow:auto}
/* cards */
.grid{display:grid;gap:16px}
.stats{grid-template-columns:repeat(auto-fit,minmax(170px,1fr));margin-bottom:18px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.stat{padding:18px}
.stat .label{color:var(--muted);font-size:13px}
.stat .val{font-size:26px;font-weight:700;margin-top:6px}
.stat .val small{font-size:14px;color:var(--muted);font-weight:400}
.stat .bar{height:4px;border-radius:4px;background:var(--primary);margin-top:12px;opacity:.85}
.panel{padding:18px 20px}
.panel .ph{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.panel .ph h2{font-size:15px;font-weight:600}
/* table */
table{width:100%;border-collapse:collapse;font-size:13.5px}
th,td{padding:11px 12px;text-align:left;border-bottom:1px solid var(--line)}
th{color:var(--muted);font-weight:600;background:#fafbfc;font-size:12.5px}
tbody tr:hover{background:#fafbfc}
td .sub{color:var(--muted);font-size:12px}
/* buttons */
.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:#fff;color:var(--ink);padding:8px 14px;border-radius:9px;font-size:13.5px;transition:.15s}
.btn:hover{background:#f3f4f6}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-d)}
.btn-sm{padding:5px 10px;font-size:12.5px;border-radius:7px}
.btn-ghost{background:transparent;border-color:transparent;color:var(--primary-d)}
.btn-danger{border-color:#fecaca;color:var(--bad);background:#fff}
.btn-danger:hover{background:#fef2f2}
.btn:disabled{opacity:.5;cursor:not-allowed}
/* badges */
.badge{display:inline-block;padding:3px 9px;border-radius:20px;font-size:12px;font-weight:600}
.b-pending{background:#fef3c7;color:#b45309}
.b-accepted{background:#dbeafe;color:#1d4ed8}
.b-ongoing{background:#e0e7ff;color:#4338ca}
.b-completed{background:#dcfce7;color:#15803d}
.b-cancelled{background:#fee2e2;color:#b91c1c}
.b-on{background:#dcfce7;color:#15803d}
.b-off{background:#f1f5f9;color:#64748b}
.b-active{background:#dcfce7;color:#15803d}
.b-offline{background:#f1f5f9;color:#64748b}
.b-locked{background:#fee2e2;color:#b91c1c}
.b-open{background:#fef3c7;color:#b45309}
.b-replied{background:#dbeafe;color:#1d4ed8}
.b-handled{background:#dcfce7;color:#15803d}
/* forms */
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;padding:9px 11px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--ink)}
.field textarea{resize:vertical;min-height:70px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
/* modal */
.overlay{position:fixed;inset:0;background:rgba(15,23,42,.45);display:none;align-items:center;justify-content:center;z-index:100;padding:20px}
.overlay.show{display:flex}
.modal{background:#fff;border-radius:14px;width:100%;max-width:520px;max-height:88vh;overflow:auto;box-shadow:0 20px 60px rgba(0,0,0,.25)}
.modal .mh{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--line);font-weight:600}
.modal .mb{padding:20px}
.modal .mf{padding:14px 20px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:10px}
.x{cursor:pointer;color:var(--muted);font-size:20px;line-height:1}
/* toast */
.toasts{position:fixed;top:18px;right:18px;z-index:200;display:flex;flex-direction:column;gap:10px}
.toast{padding:12px 16px;border-radius:10px;background:#1f2430;color:#fff;font-size:13.5px;box-shadow:0 8px 24px rgba(0,0,0,.2);animation:slidein .2s}
.toast.ok{background:#16a34a}.toast.err{background:#dc2626}.toast.info{background:#2563eb}
@keyframes slidein{from{opacity:0;transform:translateX(20px)}to{opacity:1}}
/* login */
.login{height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#1f2430,#374151)}
.login .box{background:#fff;border-radius:16px;padding:34px 32px;width:380px;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.login .box .brand{display:flex;align-items:center;gap:11px;font-size:20px;font-weight:700;margin-bottom:6px}
.login .box .brand .logo{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--primary),#fb923c);display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px}
.login .box .tip{color:var(--muted);font-size:12.5px;margin-bottom:20px}
.tabs{display:flex;gap:8px;margin-bottom:18px}
.tabs button{flex:1;padding:9px;border:1px solid var(--line);background:#fff;border-radius:9px;color:var(--muted)}
.tabs button.on{background:var(--primary);border-color:var(--primary);color:#fff}
.hint{font-size:12px;color:var(--muted);margin-top:14px;text-align:center;line-height:1.7}
/* misc */
.muted{color:var(--muted)}
.flex{display:flex;align-items:center;gap:10px}
.between{justify-content:space-between}
.wrap{flex-wrap:wrap}
.tag{display:inline-block;background:var(--primary-l);color:var(--primary-d);padding:2px 8px;border-radius:6px;font-size:12px;margin:2px 4px 2px 0}
.tag-blue{background:#e0f2fe;color:#0369a1}
.empty{padding:40px;text-align:center;color:var(--muted)}
.chart-box{height:240px}
.split{display:grid;grid-template-columns:1.4fr 1fr;gap:16px}
@media(max-width:900px){.split{grid-template-columns:1fr}.sidebar{display:none}}
/* 后台账号功能权限开关 */
.b-active{background:#dcfce7;color:#15803d}
.b-locked{background:#fee2e2;color:#b91c1c}
.permbox{display:flex;flex-wrap:wrap;gap:8px 18px;padding:4px 0}
.pc{display:inline-flex;align-items:center;gap:6px;font-size:13px;cursor:pointer;user-select:none}
.pc input{width:auto;margin:0}
/* 排班时段格子（30 分钟一档） */
.slotgrid{display:grid;grid-template-columns:repeat(6,1fr);gap:6px;margin:6px 0 4px}
.slotgrid.sm{grid-template-columns:repeat(4,1fr)}
.slot{border:1px solid var(--line);border-radius:7px;padding:7px 0;text-align:center;font-size:12px;cursor:pointer;user-select:none;background:#fff;color:var(--muted);transition:.12s}
.slot:hover{border-color:var(--primary)}
.slot.on{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}
.chip{display:inline-flex;align-items:center;background:var(--primary-l);color:var(--primary-d);padding:5px 10px;border-radius:20px;font-size:12px;cursor:pointer;border:1px solid transparent}
.chip.chip-on{border-color:var(--primary);font-weight:600}
.chip b{color:#b91c1c;font-weight:700}