:root{
  --bg:#f4f7fb; --surface:#fff; --surface-2:#fafcff; --line:#e5eaf2; --line-2:#eef2f8;
  --ink:#132033; --ink-2:#405268; --muted:#77879b;
  --brand:#155eef; --brand-2:#0d9488; --brand-soft:#eaf1ff;
  --ok:#0f9d58; --warn:#d97706; --danger:#dc2626;
  --r:14px; --shadow:0 1px 2px rgba(19,32,51,.04),0 8px 24px -12px rgba(19,32,51,.18);
  --sidebar:248px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--bg); color:var(--ink); font-size:14px; line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:14px}
[hidden]{display:none!important}
h1,h2,h3,h4{margin:0}

/* ---------------- 登录 ---------------- */
.login{min-height:100vh;display:grid;grid-template-columns:1.05fr .95fr}
.login-brand{
  background:linear-gradient(150deg,#0b2f6b 0%,#155eef 55%,#0d9488 130%);
  color:#fff;padding:56px 56px 40px;display:flex;flex-direction:column;position:relative;overflow:hidden;
}
.login-brand::after{
  content:"";position:absolute;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.16),transparent 62%);right:-180px;bottom:-200px;
}
.brand-mark{width:72px;height:72px;border-radius:18px;background:#fff;display:grid;place-items:center;margin-bottom:28px;padding:6px;box-shadow:0 6px 20px rgba(0,0,0,.25)}
.brand-logo{width:100%;height:100%;object-fit:contain;border-radius:12px;display:block}
.login-brand h1{font-size:38px;line-height:1.25;letter-spacing:-.5px;font-weight:700}
.brand-sub{margin:16px 0 34px;color:rgba(255,255,255,.82);font-size:15px}
.brand-list{list-style:none;padding:0;margin:0;display:grid;gap:14px;font-size:13.5px;color:rgba(255,255,255,.9)}
.brand-list li{padding-left:26px;position:relative}
.brand-list li::before{content:"";position:absolute;left:0;top:6px;width:14px;height:14px;border-radius:50%;border:1.5px solid rgba(255,255,255,.6)}
.brand-list li::after{content:"";position:absolute;left:4.5px;top:9.5px;width:5px;height:5px;border-radius:50%;background:#fff}
.brand-list b{color:#fff;margin-right:6px}
.brand-foot{margin-top:auto;font-size:12px;color:rgba(255,255,255,.55);letter-spacing:.4px}
.login-panel{display:grid;place-items:center;padding:32px}
.login-form{width:100%;max-width:352px}
.login-form h2{font-size:26px;font-weight:700}
.login-hint{color:var(--muted);margin:6px 0 26px;font-size:13px}
.login-form label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:16px;font-weight:500}
.login-form input{
  width:100%;margin-top:7px;padding:11px 13px;border:1px solid var(--line);border-radius:10px;
  background:var(--surface);outline:none;transition:.15s;
}
.login-form input:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.btn-block{width:100%;justify-content:center;margin-top:6px;padding:11px}
.login-err{background:#fef2f2;color:var(--danger);border:1px solid #fecaca;padding:9px 12px;border-radius:9px;font-size:13px;margin-bottom:12px}
.demo{margin-top:26px;padding-top:20px;border-top:1px dashed var(--line)}
.demo-title{font-size:12px;color:var(--muted);margin-bottom:10px}
.demo-chips{display:flex;flex-wrap:wrap;gap:7px}
.demo-chips button{
  background:var(--surface);border:1px solid var(--line);color:var(--ink-2);border-radius:999px;
  padding:5px 11px;font-size:12.5px;transition:.15s;
}
.demo-chips button:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}

/* ---------------- 骨架 ---------------- */
.shell{display:grid;grid-template-columns:var(--sidebar) 1fr;min-height:100vh}
.sidebar{background:#0d1b2e;color:#c7d3e2;display:flex;flex-direction:column;padding:20px 14px;position:sticky;top:0;height:100vh}
.side-brand{display:flex;gap:11px;align-items:center;padding:4px 8px 22px}
.side-mark{width:36px;height:36px;border-radius:10px;background:#fff;display:grid;place-items:center;overflow:hidden}
.side-logo{width:100%;height:100%;object-fit:contain;border-radius:8px;display:block}
.side-title{color:#fff;font-weight:600;font-size:14.5px;letter-spacing:.2px}
.side-sub{font-size:11.5px;color:#7d8fa6}
.side-nav{display:flex;flex-direction:column;gap:3px}
.side-nav a{
  display:flex;align-items:center;gap:10px;padding:9px 11px;border-radius:9px;color:#b3c2d6;
  text-decoration:none;font-size:13.5px;transition:.15s;
}
.side-nav a:hover{background:rgba(255,255,255,.06);color:#fff}
.side-nav a.on{background:linear-gradient(90deg,rgba(21,94,239,.95),rgba(13,148,136,.7));color:#fff;font-weight:500}
.side-nav svg{flex:none;opacity:.9}
.side-user{margin-top:auto;border-top:1px solid rgba(255,255,255,.09);padding-top:14px;font-size:12.5px}
.side-user .su-name{color:#fff;font-weight:600;font-size:13.5px}
.side-user .su-meta{color:#7d8fa6;font-size:11.5px;margin:2px 0 10px}
.side-user button{width:100%;background:rgba(255,255,255,.07);border:0;color:#c7d3e2;padding:7px;border-radius:8px;font-size:12.5px}
.side-user button:hover{background:rgba(255,255,255,.13);color:#fff}
.content{min-width:0;display:flex;flex-direction:column}
.topbar{
  height:60px;display:flex;align-items:center;gap:12px;padding:0 26px;background:rgba(255,255,255,.9);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30;
}
.topbar-title{font-weight:600;font-size:15.5px}
.topbar-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.sync-dot{font-size:11.5px;color:var(--muted);display:flex;align-items:center;gap:6px}
.sync-dot::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 3px rgba(15,157,88,.14)}
.role-badge{background:var(--brand-soft);color:var(--brand);font-size:11.5px;padding:4px 10px;border-radius:999px;font-weight:500}
.view{padding:22px 26px 40px;flex:1;min-width:0}
.icon-btn.only-mobile{display:none}
.mobile-nav{display:none}

/* ---------------- 通用组件 ---------------- */
.btn{
  display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:var(--surface);
  color:var(--ink-2);padding:7px 13px;border-radius:9px;font-size:13px;transition:.15s;white-space:nowrap;
}
.btn:hover{border-color:#cfd9e8;background:var(--surface-2)}
.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn-primary:hover{background:#0f4fd4;border-color:#0f4fd4}
.btn-ghost{background:transparent;border-color:transparent;color:var(--muted)}
.btn-sm{padding:5px 10px;font-size:12.5px}
.btn-danger{color:var(--danger);border-color:#f4cccc}
.btn-danger:hover{background:#fef2f2}
.icon-btn{background:none;border:0;padding:6px;border-radius:8px;color:var(--ink-2);display:grid;place-items:center}
.icon-btn:hover{background:var(--line-2)}

.head{display:flex;align-items:flex-end;gap:14px;margin-bottom:18px;flex-wrap:wrap}
.head h2{font-size:20px;font-weight:650;letter-spacing:-.2px}
.head p{margin:3px 0 0;color:var(--muted);font-size:12.5px}
.head .spacer{flex:1}
.toolbar{display:flex;align-items:center;gap:8px;flex-wrap:wrap}

.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow)}
.card-pad{padding:18px}
.card-head{display:flex;align-items:center;gap:10px;padding:15px 18px;border-bottom:1px solid var(--line-2)}
.card-head h3{font-size:14px;font-weight:600}
.card-head .sub{font-size:12px;color:var(--muted)}
.card-head .spacer{flex:1}

.grid{display:grid;gap:14px}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(168px,1fr));gap:14px;margin-bottom:16px}
.kpi{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:15px 16px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.kpi .k-label{font-size:12px;color:var(--muted)}
.kpi .k-value{font-size:28px;font-weight:680;letter-spacing:-1px;margin:6px 0 2px;font-variant-numeric:tabular-nums}
.kpi .k-sub{font-size:11.5px;color:var(--muted)}
.kpi .k-sub b{color:var(--ok);font-weight:600}
.kpi.accent{background:linear-gradient(140deg,#0d2a52,#155eef);border-color:transparent;color:#fff}
.kpi.accent .k-label,.kpi.accent .k-sub{color:rgba(255,255,255,.72)}
.kpi.accent .k-sub b{color:#8ef0dc}

table{width:100%;border-collapse:collapse;font-size:13px}
th{
  text-align:left;font-weight:500;color:var(--muted);font-size:12px;padding:10px 12px;
  border-bottom:1px solid var(--line);background:var(--surface-2);white-space:nowrap;
}
td{padding:11px 12px;border-bottom:1px solid var(--line-2);color:var(--ink-2);vertical-align:middle}
tbody tr:hover{background:#fbfdff}
tbody tr:last-child td{border-bottom:0}
.table-wrap{overflow-x:auto}
.mono{font-variant-numeric:tabular-nums;color:var(--ink)}
.muted{color:var(--muted)}
.strong{color:var(--ink);font-weight:550}
.name-cell{display:flex;align-items:center;gap:9px}
.avatar{width:28px;height:28px;border-radius:50%;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-size:12px;font-weight:600;flex:none}
.avatar.g{background:#e6f7f2;color:#0d9488}
.avatar.o{background:#fff4e6;color:#b45309}

.tag{display:inline-flex;align-items:center;gap:4px;font-size:11.5px;padding:2px 8px;border-radius:6px;background:var(--line-2);color:var(--ink-2);white-space:nowrap}
.tag.on{background:#e7f7ee;color:#0a7c46}
.tag.off{background:#f1f3f7;color:#77879b}
.tag.leave{background:#fff6e8;color:#b45309}
.tag.blue{background:var(--brand-soft);color:var(--brand)}
.tag.teal{background:#e2f7f3;color:#0b7c6e}

.searchbox{display:flex;align-items:center;gap:6px;background:var(--surface);border:1px solid var(--line);border-radius:9px;padding:0 10px;color:var(--muted)}
.searchbox input{border:0;outline:none;background:transparent;padding:8px 0;width:168px;font-size:13px;color:var(--ink)}

.tabs{display:inline-flex;background:var(--line-2);padding:3px;border-radius:9px;gap:2px}
.tabs button{border:0;background:transparent;padding:5px 12px;border-radius:7px;font-size:12.5px;color:var(--ink-2)}
.tabs button.on{background:var(--surface);color:var(--brand);font-weight:600;box-shadow:0 1px 2px rgba(0,0,0,.06)}

.empty{padding:44px 20px;text-align:center;color:var(--muted);font-size:13px}
.empty b{display:block;color:var(--ink-2);font-size:14px;margin-bottom:4px}

/* 排班表 */
.sched-wrap{overflow:auto;border-radius:0 0 var(--r) var(--r)}
.sched{border-collapse:separate;border-spacing:0;min-width:760px}
.sched th,.sched td{border-bottom:1px solid var(--line-2);padding:0}
.sched th{background:var(--surface-2);padding:10px 8px;text-align:center;font-size:11.5px;position:sticky;top:0;z-index:2}
.sched th .dow{display:block;color:var(--ink);font-weight:600;font-size:12.5px}
.sched th.weekend .dow{color:var(--danger)}
.sched th .dt{font-size:11px;color:var(--muted);font-variant-numeric:tabular-nums}
.sched td.stu{
  padding:8px 12px;background:var(--surface);position:sticky;left:0;z-index:1;border-right:1px solid var(--line-2);
  min-width:150px;
}
.sched td.stu .s-name{font-size:13px;color:var(--ink);font-weight:550}
.sched td.stu .s-meta{font-size:11px;color:var(--muted)}
.sched td.cell{padding:4px;text-align:center}
.shift{
  display:block;width:100%;min-height:38px;border:0;border-radius:7px;font-size:12.5px;font-weight:500;
  background:#f6f8fc;color:var(--ink-2);transition:.12s;padding:5px 4px;
}
.shift:hover{filter:brightness(.97);box-shadow:inset 0 0 0 1.5px rgba(21,94,239,.35)}
.shift.s-fang{background:#e8f0ff;color:#1a4fd0}
.shift.s-gen{background:#e2f7f3;color:#0b7c6e}
.shift.s-day{background:#f6ecff;color:#7c3aed}
.shift.s-rest{background:#f2f4f8;color:#8a99ac}
.shift.s-leave{background:#fff3e2;color:#a8580a}
.shift .half{display:inline-block;font-size:9px;margin-left:2px;padding:0 3px;border-radius:3px;background:rgba(255,255,255,.7);vertical-align:middle;line-height:1.4}
.shift .note{display:block;font-size:10px;opacity:.75;margin-top:1px}
.shift.s-half{display:flex;flex-direction:column;gap:3px;padding:4px 6px;background:#fff}
.shift .half-row{display:block;width:100%;text-align:center;font-size:11.5px;padding:4px 2px;border-radius:6px}
.half-row.s-fang{background:#e8f0ff;color:#1a4fd0}
.half-row.s-gen{background:#e2f7f3;color:#0b7c6e}
.half-row.s-day{background:#f6ecff;color:#7c3aed}
.half-row.s-rest{background:#f2f4f8;color:#8a99ac}
.half-row.s-leave{background:#fff3e2;color:#a8580a}
.sched td.cell.today{background:#f7faff}

/* 轮转计划 */
.rot-seq{display:flex;align-items:center;flex-wrap:wrap;gap:8px}
.rot-step{display:flex;flex-direction:column;align-items:center;gap:4px;padding:10px 14px;border:1px solid var(--line-2);border-radius:10px;background:var(--surface-2);min-width:120px}
.rot-dot{width:22px;height:22px;border-radius:50%;background:var(--brand);color:#fff;font-size:12px;display:grid;place-items:center;font-weight:600}
.rot-dept{font-size:13px;font-weight:550;color:var(--ink)}
.rot-date{font-size:11px}
.rot-arrow{color:var(--muted);font-size:18px}

/* 轮转计划可视化编辑器 */
.rot-edit-row{display:flex;align-items:center;gap:8px;margin-bottom:8px}
.rot-idx{width:24px;height:24px;border-radius:50%;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-size:12px;font-weight:600;flex:none}
.rot-edit-row select,.rot-edit-row input[type="date"]{height:36px;border:1px solid var(--line);border-radius:8px;padding:0 8px;font-size:13px;background:var(--surface);outline:none}
.rot-edit-row select:focus,.rot-edit-row input[type="date"]:focus{border-color:var(--brand)}
.rot-edit-row input[type="date"]{width:132px;flex:none}
.rot-del{flex:none;width:32px;height:32px;padding:0;display:grid;place-items:center;font-size:18px;line-height:1}

/* 月历 */
.cal{display:grid;grid-template-columns:repeat(7,1fr);gap:6px}
.cal .ch{font-size:11.5px;color:var(--muted);text-align:center;padding:4px 0}
.cal .cd{
  min-height:86px;border:1px solid var(--line-2);border-radius:9px;padding:6px;background:var(--surface);
  display:flex;flex-direction:column;gap:3px;font-size:11.5px;
}
.cal .cd.out{background:#fafbfd;opacity:.55}
.cal .cd .dnum{font-weight:600;color:var(--ink-2);font-variant-numeric:tabular-nums}
.cal .cd.today{border-color:var(--brand);box-shadow:0 0 0 2px var(--brand-soft)}
.cal .cd .cnt{font-size:10.5px;color:var(--brand);background:var(--brand-soft);border-radius:5px;padding:1px 5px;align-self:flex-start}
.cal .cd .mini{font-size:10.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* 图表 */
.chart{width:100%;display:block}
.legend{display:flex;flex-wrap:wrap;gap:12px;font-size:11.5px;color:var(--muted);margin-top:10px}
.legend i{width:8px;height:8px;border-radius:3px;display:inline-block;margin-right:5px}
.bars{display:grid;gap:11px}
.bar-row{display:grid;grid-template-columns:88px 1fr 34px;align-items:center;gap:10px;font-size:12.5px}
.bar-row .bl{color:var(--ink-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.bar-track{display:block;height:8px;background:var(--line-2);border-radius:99px;overflow:hidden}
.bar-fill{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,#155eef,#0d9488)}
.bar-row .bv{text-align:right;color:var(--ink);font-weight:600;font-variant-numeric:tabular-nums}

/* 弹窗 */
.modal-mask{position:fixed;inset:0;background:rgba(12,22,38,.45);display:grid;place-items:center;z-index:100;padding:20px;animation:fade .15s}
@keyframes fade{from{opacity:0}to{opacity:1}}
.modal{background:var(--surface);border-radius:16px;width:100%;max-width:560px;max-height:88vh;display:flex;flex-direction:column;box-shadow:0 24px 64px -20px rgba(12,22,38,.45);animation:pop .18s}
@keyframes pop{from{transform:translateY(8px) scale(.99);opacity:.6}to{transform:none;opacity:1}}
.modal-head{display:flex;align-items:center;padding:16px 20px;border-bottom:1px solid var(--line-2)}
.modal-head h3{font-size:15px}
.modal-head .spacer{flex:1}
.modal-body{padding:18px 20px;overflow:auto}
.modal-foot{display:flex;gap:9px;justify-content:flex-end;padding:14px 20px;border-top:1px solid var(--line-2)}
.field{margin-bottom:14px}
.field label{display:block;font-size:12.5px;color:var(--ink-2);margin-bottom:6px;font-weight:500}
.field input,.field select,.field textarea{
  width:100%;padding:9px 11px;border:1px solid var(--line);border-radius:9px;outline:none;background:var(--surface);
}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.field textarea{resize:vertical;min-height:130px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px;line-height:1.6}
.hint{font-size:11.5px;color:var(--muted);margin-top:6px}
.row-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}

/* toast */
.toast{
  position:fixed;left:50%;bottom:28px;transform:translateX(-50%);background:#132033;color:#fff;
  padding:10px 18px;border-radius:10px;font-size:13px;z-index:200;box-shadow:0 12px 32px -12px rgba(0,0,0,.5);
  animation:toastIn .2s;
}
@keyframes toastIn{from{opacity:0;transform:translate(-50%,8px)}to{opacity:1;transform:translate(-50%,0)}}
.toast.err{background:#b91c1c}
.toast.ok{background:#0a7c46}

/* 附件 */
.att-list{display:grid;gap:2px}
.att{display:flex;align-items:center;gap:12px;padding:12px 4px;border-bottom:1px solid var(--line-2)}
.att:last-child{border-bottom:0}
.att-ico{width:36px;height:36px;border-radius:9px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-size:10.5px;font-weight:700;flex:none}
.att-ico.pdf{background:#fdecec;color:#c92a2a}
.att-ico.doc{background:#e8f0fe;color:#1a4fd0}
.att-ico.img{background:#e6f7f2;color:#0d9488}
.att-main{min-width:0;flex:1}
.att-name{font-size:13px;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.att-meta{font-size:11.5px;color:var(--muted)}
.att-ops{display:flex;gap:6px;flex:none}

/* 学生端今日卡 */
.daylist{display:grid;gap:10px}
.dayrow{display:flex;align-items:center;gap:14px;padding:12px 16px;border:1px solid var(--line);border-radius:12px;background:var(--surface)}
.dayrow.today{border-color:#bcd2ff;background:linear-gradient(90deg,#f5f9ff,#fff)}
.dayrow .dw{width:66px;flex:none}
.dayrow .dw b{display:block;font-size:13px;color:var(--ink)}
.dayrow .dw span{font-size:11px;color:var(--muted)}
.dayrow .ds{margin-left:auto}

.drop{
  border:1.5px dashed #cdd8e8;border-radius:12px;padding:26px;text-align:center;color:var(--muted);font-size:13px;
  background:var(--surface-2);transition:.15s;cursor:pointer;
}
.drop:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand)}
.drop b{color:var(--ink-2)}

/* 权限矩阵 */
.matrix td.c{text-align:center}
.dot-y{color:#0f9d58;font-weight:700}
.dot-n{color:#d5dce7}

/* 响应式：平板 / 手机 */
@media (max-width:1100px){
  .login{grid-template-columns:1fr}
  .login-brand{padding:38px 32px;min-height:auto}
  .login-brand h1{font-size:30px}
  .brand-list{display:none}
  .brand-foot{display:none}
  .kpis{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:820px){
  .shell{grid-template-columns:1fr}
  .sidebar{position:fixed;inset:0 auto 0 0;width:260px;z-index:90;transform:translateX(-100%);transition:transform .2s}
  .sidebar.open{transform:none;box-shadow:0 0 40px rgba(0,0,0,.35)}
  .icon-btn.only-mobile{display:grid}
  .topbar{padding:0 14px;height:54px}
  .view{padding:16px 14px 84px}
  .mobile-nav{
    display:grid;grid-auto-flow:column;grid-auto-columns:1fr;position:fixed;left:0;right:0;bottom:0;
    background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-top:1px solid var(--line);
    padding:6px 4px calc(6px + env(safe-area-inset-bottom));z-index:60;
  }
  .mobile-nav a{
    display:flex;flex-direction:column;align-items:center;gap:2px;padding:6px 2px;text-decoration:none;
    color:var(--muted);font-size:10.5px;border-radius:9px;
  }
  .mobile-nav a.on{color:var(--brand);background:var(--brand-soft)}
  .card-head{flex-wrap:wrap;gap:8px 10px;padding:12px 14px}
  .card-head .spacer{display:none}
  .card-head .sub{order:3;flex:1 1 100%;margin-left:0!important;font-size:11.5px}
  .card-head .hide-sm{display:none}
  .tabs{margin-left:auto;flex:none}
  .tabs button{white-space:nowrap;padding:5px 10px}
  .head .toolbar{gap:6px}
  .searchbox input{width:120px}
  .head h2{font-size:18px}
  .kpi .k-value{font-size:24px}
  .row-2{grid-template-columns:1fr}
  .sched td.stu{min-width:112px}
  .sched th,.sched td{padding:0}
  .shift{min-height:34px;font-size:11.5px}
  .cal .cd{min-height:64px;padding:4px}
  .side-user{margin-top:20px}
}