:root{
  --bg:#f4f6fa; --card:#fff; --text:#1f2937; --muted:#6b7280;
  --line:#e5e7eb; --primary:#2563eb; --primary-dark:#1d4ed8;
  --orange:#d97706; --orange-bg:#fffbeb;
  --green:#059669; --green-bg:#ecfdf5;
  --red:#dc2626; --red-bg:#fef2f2;
  --gray-bg:#f3f4f6;
}
*{box-sizing:border-box}
[hidden]{display:none !important}
html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:15px; line-height:1.6; -webkit-text-size-adjust:100%;
}
a{color:var(--primary);text-decoration:none}
.topbar{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.topbar-inner{max-width:760px;margin:0 auto;padding:12px 16px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand{font-weight:700;font-size:17px;white-space:nowrap}
.navlinks{display:flex;gap:14px;font-size:13px;white-space:nowrap}
.container{max-width:760px;margin:0 auto;padding:16px 16px 40px}
.container.narrow{max-width:480px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;margin-bottom:16px;box-shadow:0 1px 3px rgba(16,24,40,.04)}
.card-title{font-size:18px;margin:0 0 4px}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}
.hint{color:var(--muted);font-size:13px;margin:0 0 16px}
.footer-note{color:var(--muted);font-size:12px;text-align:center;margin-top:8px}
.req{color:var(--red)}
.field{margin-bottom:14px;min-width:0;flex:1}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:#374151}
.field-row{display:flex;gap:12px}
input,select,textarea{
  width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:9px;
  font-size:15px;font-family:inherit;color:var(--text);background:#fff;outline:none;
}
input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
textarea{resize:vertical}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  border:1px solid transparent;border-radius:9px;padding:9px 16px;font-size:14px;
  font-family:inherit;font-weight:600;cursor:pointer;background:var(--gray-bg);color:var(--text);
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-block{width:100%;padding:12px;font-size:15px}
.btn-sm{padding:6px 12px;font-size:13px}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--primary)}
.btn-danger{background:#fff;border-color:#fecaca;color:var(--red)}
.btn-ok{background:var(--green);color:#fff}
.btn:disabled{opacity:.5;cursor:not-allowed}
.form-msg{margin-top:10px;font-size:14px;min-height:20px}
.form-msg.ok{color:var(--green)}
.form-msg.err{color:var(--red)}
.duration-preview{background:var(--gray-bg);border-radius:9px;padding:10px 12px;font-size:13px;color:#374151;margin-bottom:14px}
.tabs{display:flex;gap:6px;border-bottom:1px solid var(--line);margin:-4px 0 14px;overflow-x:auto}
.tab{border:none;background:none;padding:10px 12px;font-size:14px;font-family:inherit;color:var(--muted);cursor:pointer;white-space:nowrap;border-bottom:2px solid transparent}
.tab.active{color:var(--primary);font-weight:700;border-bottom-color:var(--primary)}
.badge{display:inline-block;min-width:18px;padding:0 5px;border-radius:9px;background:var(--red);color:#fff;font-size:11px;line-height:18px;text-align:center}
.record{border:1px solid var(--line);border-radius:11px;padding:13px;margin-bottom:10px;background:#fff}
.record-head{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:8px}
.record-head b{font-size:14px}
.record-body{font-size:13px;color:#374151;display:grid;gap:3px}
.record-body .k{color:var(--muted);display:inline-block;min-width:62px}
.pill{font-size:12px;padding:2px 9px;border-radius:20px;white-space:nowrap}
.pill-pending{background:var(--orange-bg);color:var(--orange)}
.pill-approved{background:var(--green-bg);color:var(--green)}
.pill-rejected{background:var(--red-bg);color:var(--red)}
.pill-cancelled{background:var(--gray-bg);color:var(--muted)}
.record-actions{display:flex;gap:8px;align-items:center;margin-top:12px;flex-wrap:wrap}
.note-input{flex:1;min-width:140px;padding:8px 10px;font-size:13px}
.msg-item{border-left:3px solid var(--line);padding:8px 12px;margin-bottom:10px;background:#fafafa;border-radius:0 8px 8px 0}
.msg-item.unread{border-left-color:var(--primary);background:#eff6ff}
.msg-item .t{font-weight:600;font-size:14px}
.msg-item .b{font-size:13px;color:#374151;white-space:pre-wrap;margin-top:3px}
.msg-item .d{font-size:12px;color:var(--muted);margin-top:4px}
.stat-row{display:flex;gap:10px;margin-bottom:16px}
.stat{flex:1;background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px;text-align:center}
.stat-num{display:block;font-size:22px;font-weight:700;color:var(--primary)}
.stat-label{font-size:12px;color:var(--muted)}
.alert{background:var(--orange-bg);border:1px solid #fde68a;color:#92400e;border-radius:9px;padding:10px 12px;font-size:13px;margin-bottom:14px}
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
table{width:100%;border-collapse:collapse;font-size:13px;min-width:660px}
th,td{padding:8px 10px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}
th{background:#f9fafb;color:var(--muted);font-weight:600}
.empty{color:var(--muted);text-align:center;padding:24px 8px;font-size:13px}
code{background:var(--gray-bg);padding:1px 5px;border-radius:4px;font-size:12px}
@media (max-width:560px){
  .field-row{flex-direction:column;gap:0}
  .topbar-inner{padding:10px 12px;flex-wrap:wrap;gap:6px}
  .brand{font-size:15px}
  .navlinks{gap:10px;font-size:12px;flex-wrap:wrap;justify-content:flex-end}
  .container{padding:12px 12px 32px}
  .card{padding:14px}
}