:root{--primary:#2563eb; --primary-h:#1d4ed8; --bg:#f1f5f9; --card:#fff; --line:#e2e8f0; --txt:#0f172a; --muted:#64748b; --danger:#dc2626; --ok:#16a34a; --warn:#d97706;}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system, Segoe UI,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--txt);font-size:14px}
a{color:var(--primary);text-decoration:none}
button{font-family:inherit}
.hidden{display:none!important}
#login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#2563eb,#1e40af)}
.login-box{background:#fff;padding:36px 40px;border-radius:12px;width:360px;box-shadow:0 20px 60px rgba(0,0,0,.25)}
.login-box h1{font-size:20px;margin-bottom:6px;text-align:center}
.login-box .sub{color:var(--muted);text-align:center;margin-bottom:22px;font-size:13px}
.field{margin-bottom:14px}
.field label{display:block;margin-bottom:6px;color:#334155;font-size:13px}
.field input{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;font-size:14px}
.field input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.15)}
.btn{width:100%;padding:11px;background:var(--primary);color:#fff;border:none;border-radius:8px;font-size:15px;cursor:pointer}
.btn:hover{background:var(--primary-h)}
.btn:disabled{opacity:.6;cursor:not-allowed}
.btn-sm{padding:6px 12px;font-size:13px;width:auto;border-radius:6px}
.btn-ghost{background:#fff;color:var(--primary);border:1px solid var(--primary)}
.btn-ghost:hover{background:#eff6ff}
.btn-danger{background:var(--danger)}
.btn-danger:hover{background:#b91c1c}
.btn-ok{background:var(--ok)}
.btn-ok:hover{background:#15803d}
.btn-line{background:#fff;color:#334155;border:1px solid var(--line)}
.btn-line:hover{background:#f8fafc}
#shell{display:flex;min-height:100vh}
#sidebar{width:220px;background:#0f172a;color:#cbd5e1;display:flex;flex-direction:column;position:fixed;top:0;bottom:0;left:0;z-index:20}
#sidebar .brand{padding:20px;font-size:17px;font-weight:700;color:#fff;border-bottom:1px solid #1e293b}
#sidebar .brand small{font-weight:400;color:#94a3b8;font-size:11px;display:block;margin-top:2px}
#nav{flex:1;padding:10px 0;overflow-y:auto}
#nav .item{padding:12px 20px;cursor:pointer;display:flex;align-items:center;gap:8px;color:#cbd5e1}
#nav .item:hover{background:#1e293b;color:#fff}
#nav .item.active{background:var(--primary);color:#fff}
#nav .item .dot{margin-left:auto;background:var(--danger);color:#fff;font-size:11px;border-radius:10px;padding:1px 6px}
#sidebar .uinfo{padding:14px 20px;border-top:1px solid #1e293b;font-size:13px}
#sidebar .uinfo .name{color:#fff;font-weight:600}
#sidebar .uinfo .role{color:#94a3b8}
#sidebar .uinfo a{cursor:pointer;color:#94a3b8;margin-right:8px}
#sidebar .uinfo a:hover{color:#fff}
#main{flex:1;margin-left:220px;padding:24px;min-width:0}
.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.topbar h2{font-size:20px}
.topbar .actions{display:flex;gap:10px}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:20px;margin-bottom:16px}
.card h3{font-size:15px;margin-bottom:14px}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:12px;margin-bottom:18px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px}
.stat .num{font-size:26px;font-weight:700}
.stat .lbl{color:var(--muted);font-size:13px;margin-top:2px}
.stat.c-pending{color:var(--warn)} .stat.c-in_progress{color:var(--primary)}
.stat.c-review{color:#7c3aed} .stat.c-done{color:var(--ok)} .stat.c-rejected{color:var(--danger)}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:16px;align-items:center}
.toolbar input[type=text],.toolbar select{padding:8px 10px;border:1px solid var(--line);border-radius:8px;font-size:13px}
.toolbar input[type=text]{width:220px}
table.rows{width:100%;border-collapse:collapse}
table.rows th,table.rows td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
table.rows th{color:var(--muted);font-weight:600;font-size:12px;background:#f8fafc}
table.rows tr:hover{background:#f8fafc}
.tag{display:inline-block;padding:2px 9px;border-radius:20px;font-size:12px;font-weight:500}
.st-pending{background:#fef3c7;color:#b45309}.st-in_progress{background:#dbeafe;color:#1d4ed8}
.st-review{background:#ede9fe;color:#6d28d9}.st-done{background:#dcfce7;color:#15803d}
.st-rejected{background:#fee2e2;color:#b91c1c}.st-closed{background:#f1f5f9;color:#475569}
.pr-low{background:#f1f5f9;color:#475569}.pr-normal{background:#e0f2fe;color:#0369a1}
.pr-high{background:#fef3c7;color:#b45309}.pr-urgent{background:#fee2e2;color:#b91c1c}
.text-danger{color:var(--danger)}.text-muted{color:var(--muted)}
.overdue{color:var(--danger);font-weight:600}
.modal-mask{position:fixed;inset:0;background:rgba(15,23,42,.5);display:flex;align-items:center;justify-content:center;z-index:100}
.modal{background:#fff;border-radius:12px;width:560px;max-width:94vw;max-height:90vh;overflow:auto;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.modal-lg{width:760px}
.modal .mhead{padding:18px 22px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;background:#fff;z-index:2}
.modal .mhead h3{font-size:16px}
.modal .mclose{cursor:pointer;font-size:22px;color:var(--muted);background:none;border:none}
.modal .mbody{padding:22px}
.modal .mfoot{padding:16px 22px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:10px;position:sticky;bottom:0;background:#fff}
textarea{width:100%;padding:9px 11px;border:1px solid var(--line);border-radius:8px;font-size:13px;resize:vertical;font-family:inherit}
select,input[type=text],input[type=password],input[type=date],input[type=tel]{padding:9px 11px;border:1px solid var(--line);border-radius:8px;font-size:13px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.full{width:100%}
#toast{position:fixed;top:20px;right:20px;z-index:200;display:flex;flex-direction:column;gap:8px}
.toast{padding:12px 18px;border-radius:8px;color:#fff;background:#0f172a;box-shadow:0 8px 20px rgba(0,0,0,.2);animation:fadeIn .25s}
.toast.ok{background:var(--ok)}.toast.err{background:var(--danger)}.toast.warn{background:var(--warn)}
@keyframes fadeIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
.dlist li{list-style:none;padding:8px 0;border-bottom:1px dashed var(--line);font-size:13px}
.dlist li b{color:#334155}
.logitem{display:flex;gap:10px;padding:8px 0;font-size:13px;border-bottom:1px dashed var(--line)}
.logitem .who{width:110px;color:var(--muted);flex-shrink:0}
.logitem .act{flex:1}
.notif{display:flex;gap:10px;padding:10px 12px;border:1px solid var(--line);border-radius:8px;margin-bottom:8px;align-items:flex-start}
.notif.unread{border-color:var(--primary);background:#eff6ff}
.notif .ntitle{font-size:13px;flex:1}
.notif .ndate{color:var(--muted);font-size:12px}
@media(max-width:768px){#sidebar{width:60px}#sidebar .brand span,#nav .item span,.uinfo .meta{display:none}#sidebar .brand{padding:16px 0;text-align:center}#main{margin-left:60px;padding:14px}.row2{grid-template-columns:1fr}}