:root{
  --bg:#F4F6FA; --card:#FFFFFF; --primary:#4F7CF7; --primary-dark:#3A63D6;
  --text:#1F2430; --muted:#8A93A6; --line:#EAEDF3; --green:#2BB673; --red:#E5564B; --amber:#F0A23B;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",Segoe UI,sans-serif;background:var(--bg);color:var(--text);font-size:14px}
.app{display:flex;min-height:100vh}

/* sidebar */
.sidebar{width:230px;background:#fff;border-right:1px solid var(--line);display:flex;flex-direction:column;padding:18px 12px;flex-shrink:0}
.brand{font-size:17px;font-weight:700;color:var(--primary);padding:6px 10px 16px}
.sidebar nav{display:flex;flex-direction:column;gap:4px;flex:1}
.nav-item{display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:10px;cursor:pointer;color:var(--muted);font-weight:500;transition:.15s}
.nav-item:hover{background:var(--bg)}
.nav-item.active{background:var(--primary);color:#fff}
.nav-item .ic{font-size:16px;width:18px;text-align:center}
.brand-foot{margin-top:12px;padding:10px;background:var(--bg);border-radius:10px;color:var(--muted);font-size:12px;text-align:center}

/* main */
.main{flex:1;display:flex;flex-direction:column;min-width:0}
.topbar{display:flex;align-items:center;gap:14px;padding:16px 24px;background:#fff;border-bottom:1px solid var(--line)}
.topbar h1{font-size:19px;font-weight:700;flex:1}
.hamburger{display:none;background:none;border:none;font-size:22px;cursor:pointer}

/* buttons */
.btn-primary{background:var(--primary);color:#fff;border:none;padding:9px 16px;border-radius:10px;font-weight:600;cursor:pointer;font-size:13px}
.btn-primary:hover{background:var(--primary-dark)}
.btn-ghost{background:var(--bg);color:var(--text);border:1px solid var(--line);padding:9px 16px;border-radius:10px;cursor:pointer;font-weight:500}
.btn-sm{padding:5px 10px;border-radius:8px;font-size:12px;border:none;cursor:pointer}
.btn-edit{background:#EEF3FF;color:var(--primary)}
.btn-del{background:#FDECEB;color:var(--red)}

/* content */
.content{padding:22px 24px;overflow:auto}
.card{background:var(--card);border-radius:16px;padding:18px;box-shadow:0 1px 3px rgba(20,30,60,.05);margin-bottom:16px}

/* summary bar */
.summary{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.stat{flex:1;min-width:120px;background:#fff;border-radius:14px;padding:16px 18px;box-shadow:0 1px 3px rgba(20,30,60,.05)}
.stat .num{font-size:26px;font-weight:700;color:var(--primary)}
.stat .lab{font-size:12px;color:var(--muted);margin-top:4px}

/* table */
table{width:100%;border-collapse:collapse;background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 1px 3px rgba(20,30,60,.05)}
th,td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);font-size:13px}
th{background:var(--bg);color:var(--muted);font-weight:600;font-size:12px}
tr:last-child td{border-bottom:none}
.row-actions{display:flex;gap:6px;justify-content:flex-end}

/* tags & badges */
.tag{display:inline-block;background:#EEF3FF;color:var(--primary);border-radius:6px;padding:2px 8px;font-size:11px;margin:2px}
.badge{padding:3px 10px;border-radius:20px;font-size:12px;font-weight:600}
.b-todo{background:#FFF4E5;color:var(--amber)}
.b-done{background:#E7F7EF;color:var(--green)}
.b-wait{background:#EEF3FF;color:var(--primary)}
.dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:6px}
.d-green{background:var(--green)} .d-amber{background:var(--amber)} .d-blue{background:var(--primary)} .d-red{background:var(--red)}

/* modal */
.modal-mask{position:fixed;inset:0;background:rgba(15,20,35,.45);display:flex;align-items:center;justify-content:center;z-index:50}
.modal-mask[hidden]{display:none !important}

/* 密码门 */
.gate{position:fixed;inset:0;background:linear-gradient(160deg,#EEF3FF,#F4F6FA);display:flex;align-items:center;justify-content:center;z-index:60}
.gate-box{background:#fff;border-radius:20px;padding:40px 36px;width:min(360px,90vw);text-align:center;box-shadow:0 8px 30px rgba(20,30,60,.12)}
.gate-logo{font-size:46px;margin-bottom:8px}
.gate-box h2{font-size:20px;font-weight:700;margin-bottom:6px}
.gate-sub{color:var(--muted);font-size:13px;margin-bottom:20px}
.gate-box input{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:15px;margin-bottom:14px;text-align:center}
.gate-box .btn-primary{width:100%;padding:12px}
.gate-err{color:var(--red);font-size:12px;margin-top:12px;min-height:16px}

/* gate 隐藏态由 [hidden] 控制，确保不挡主应用 */
.gate[hidden]{display:none !important}
.app[hidden]{display:none !important}
.modal{background:#fff;border-radius:18px;width:min(520px,92vw);max-height:88vh;display:flex;flex-direction:column;overflow:hidden}
.modal-head{display:flex;justify-content:space-between;align-items:center;padding:18px 22px;border-bottom:1px solid var(--line)}
.modal-head h3{font-size:16px}
.modal-close{background:none;border:none;font-size:18px;cursor:pointer;color:var(--muted)}
.modal-body{padding:20px 22px;overflow:auto;display:flex;flex-direction:column;gap:14px}
.modal-foot{padding:16px 22px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:10px}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:12px;color:var(--muted);font-weight:600}
.field input,.field select,.field textarea{padding:10px 12px;border:1px solid var(--line);border-radius:10px;font-size:14px;font-family:inherit}
.field textarea{resize:vertical;min-height:70px}

.empty{padding:40px;text-align:center;color:var(--muted)}

@media(max-width:720px){
  .sidebar{position:fixed;left:0;top:0;bottom:0;z-index:40;transform:translateX(-100%);transition:.2s}
  .sidebar.open{transform:translateX(0)}
  .hamburger{display:block}
  .summary .stat{min-width:45%}
  th,td{padding:10px 8px}
}