/* =============================================================
   学库保教辅平台 · 设计系统 v2（商业化高级感）
   品牌色：蓝 #2f6bff / 绿 #0f9d6b
   ============================================================= */
:root{
  --blue:#2f6bff; --blue-d:#1f4fd1; --blue-soft:#eaf0ff;
  --green:#0f9d6b; --green-d:#0c7f56; --green-soft:#e6f6ef;
  --amber:#f5a524; --red:#e5484d; --red-soft:#fdecec;
  --ink:#0f172a; --slate:#475569; --muted:#94a3b8;
  --line:#e8edf4; --line-soft:#f1f5f9;
  --bg:#f4f6fb; --card:#ffffff;
  --navy-1:#0e1838; --navy-2:#16234d; --navy-3:#1d2f63;
  --shadow-sm:0 1px 2px rgba(16,24,40,.06);
  --shadow:0 1px 3px rgba(16,24,40,.06), 0 10px 30px rgba(16,24,40,.07);
  --shadow-lg:0 20px 60px rgba(16,24,40,.16);
  --radius:16px; --radius-sm:11px;
  --sidebar-w:236px;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  background:var(--bg); color:var(--ink); font-size:14px; line-height:1.6;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em}
button{font-family:inherit}
input,select,textarea{font-family:inherit;font-size:14px}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px;color:var(--slate)}

/* ---------------- 按钮 ---------------- */
.btn{
  display:inline-flex;align-items:center;gap:7px;justify-content:center;
  border:1px solid var(--line); background:#fff; color:var(--ink);
  padding:9px 16px;border-radius:10px;font-weight:600;cursor:pointer;
  transition:.16s ease; white-space:nowrap; line-height:1;
}
.btn:hover{transform:translateY(-1px);box-shadow:var(--shadow-sm);border-color:#d7e0ee}
.btn:active{transform:translateY(0)}
.btn.sm{padding:7px 12px;font-size:13px;border-radius:9px}
.btn.block{width:100%;padding:12px;font-size:15px}
.btn.green{background:var(--green);border-color:var(--green);color:#fff}
.btn.green:hover{background:var(--green-d);border-color:var(--green-d)}
.btn.blue{background:var(--blue);border-color:var(--blue);color:#fff}
.btn.blue:hover{background:var(--blue-d);border-color:var(--blue-d)}
.btn.red{background:var(--red);border-color:var(--red);color:#fff}
.btn.red:hover{filter:brightness(.95)}
.btn.ghost{background:transparent;border-color:transparent;color:var(--slate)}
.btn.ghost:hover{background:var(--line-soft);border-color:var(--line)}
.btn.soft.green{background:var(--green-soft);border-color:transparent;color:var(--green-d)}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none!important}
.icon-btn{
  width:32px;height:32px;border-radius:9px;border:1px solid var(--line);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;color:var(--slate);
  transition:.16s; padding:0;
}
.icon-btn svg{width:16px;height:16px}
.icon-btn:hover{color:var(--blue);border-color:#cdddff;background:var(--blue-soft)}
.icon-btn.danger:hover{color:var(--red);border-color:#f6c9ca;background:var(--red-soft)}
.icon-btn.sm{width:28px;height:28px}
.icon-btn.sm svg{width:14px;height:14px}
.acts{display:flex;gap:6px}

/* ---------------- 登录（分屏） ---------------- */
.login-wrap{min-height:100vh;display:grid;grid-template-columns:1.05fr 1fr;background:#fff;overflow:hidden}
.login-wrap.solo{display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#eaf1ff,#e6f6ef)}
.login-hero{
  position:relative;padding:54px 56px;color:#fff;display:flex;flex-direction:column;justify-content:space-between;
  background:
    radial-gradient(900px 500px at 110% -10%, rgba(47,107,255,.55), transparent 60%),
    radial-gradient(700px 500px at -10% 120%, rgba(15,157,107,.5), transparent 55%),
    linear-gradient(150deg,var(--navy-1),var(--navy-2) 55%,var(--navy-3));
}
.login-hero .brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:18px}
.login-hero .logo{width:40px;height:40px;border-radius:12px;background:rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:800;backdrop-filter:blur(4px)}
.login-hero h1{font-size:30px;line-height:1.35;margin-top:auto;max-width:13em}
.login-hero p.lead{color:rgba(255,255,255,.78);font-size:15px;max-width:30em;margin:14px 0 0}
.login-hero .feats{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}
.login-hero .feat{display:flex;align-items:center;gap:8px;background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.16);padding:9px 13px;border-radius:11px;font-size:13px;color:rgba(255,255,255,.92)}
.login-hero .feat svg{width:16px;height:16px;opacity:.9}
.login-hero .foot{color:rgba(255,255,255,.55);font-size:12.5px;margin-top:26px}
.login-side{display:flex;align-items:center;justify-content:center;padding:40px}
.login-card{width:360px;max-width:100%}
.login-card .brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:var(--ink);margin-bottom:4px}
.login-card .logo{width:36px;height:36px;border-radius:11px;background:linear-gradient(135deg,var(--blue),var(--green));
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;font-weight:800}
.login-card .sub{color:var(--slate);margin-bottom:22px;font-size:14px}
.login-card h2{font-size:22px;margin-bottom:4px}
.login-card .tip{color:var(--muted);font-size:13px;margin:0 0 18px}

/* ---------------- 表单 ---------------- */
.field{margin-bottom:14px}
.field>label{display:block;font-size:13px;font-weight:600;color:var(--slate);margin-bottom:6px}
.field input,.field select,.field textarea{
  width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:11px;background:#fff;color:var(--ink);
  transition:.16s;outline:none;
}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(47,107,255,.12)}
.field input::placeholder{color:#b6c0cf}
.inline{display:flex;gap:8px;align-items:center}
.inline input{flex:1}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.flex{display:flex}
.tip-box{background:var(--blue-soft);border:1px solid #d6e2ff;border-radius:12px;padding:12px 14px;color:#2348b0;font-size:13px}

/* ---------------- 记录筛选条（一行四联动 · 可输入可选择） ---------------- */
.rec-filter{display:flex;flex-wrap:wrap;gap:10px 10px;align-items:flex-end;
  background:#fff;border:1px solid var(--line);border-radius:13px;padding:14px 16px;margin:12px 0 14px}
.rf-item{min-width:140px;flex:0 0 auto;display:flex;flex-direction:column;gap:5px}
.rf-combo{flex:1 1 0;min-width:150px;position:relative}
.rf-item>label{font-size:12px;font-weight:600;color:var(--slate)}
.combo{position:relative}
.combo-in{width:100%;padding:9px 30px 9px 11px;border:1px solid var(--line);border-radius:10px;
  background:#fff;color:var(--ink);outline:none;transition:.16s;font-size:13.5px}
.combo-in::placeholder{color:#a9b4c6}
.combo-in:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(47,107,255,.12)}
.combo-caret{position:absolute;right:11px;top:50%;width:0;height:0;margin-top:-2px;
  border-left:5px solid transparent;border-right:5px solid transparent;border-top:6px solid #8a97ab;
  transform:translateY(-50%);transition:transform .18s;cursor:pointer}
.combo-caret.up{transform:translateY(-50%) rotate(180deg)}
.combo-clear{position:absolute;right:26px;top:50%;transform:translateY(-50%);
  width:17px;height:17px;line-height:15px;text-align:center;border-radius:50%;
  background:#e6ebf3;color:#6b7a90;font-size:13px;cursor:pointer}
.combo-clear:hover{background:#d7dfeb;color:#41506a}
.combo-pop{position:absolute;z-index:60;left:0;right:0;top:calc(100% + 5px);
  background:#fff;border:1px solid var(--line);border-radius:11px;box-shadow:0 12px 30px rgba(20,32,54,.14);
  max-height:262px;overflow:auto;padding:5px}
.combo-opt{padding:8px 11px;border-radius:8px;font-size:13.5px;color:var(--ink);cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.combo-opt:hover{background:var(--blue-soft)}
.combo-opt.on{background:var(--blue-soft);color:var(--blue);font-weight:600}
.combo-none{padding:12px 11px;font-size:12.5px;color:var(--muted);text-align:center}
.rec-filter>.btn{align-self:flex-end;margin-left:2px}
.rf-sum{align-self:flex-end;font-size:12.5px;color:var(--muted);padding-bottom:8px;margin-left:auto;white-space:nowrap}
.err{color:var(--red);font-size:13px;margin:2px 0 10px}
.hint{color:var(--muted);font-size:12.5px;line-height:1.7}
.hint.mt{margin-top:14px}
label.inline{display:inline-flex;align-items:center;gap:8px;cursor:pointer}

/* ---------------- 布局 shell ---------------- */
.shell{display:grid;grid-template-columns:var(--sidebar-w) 1fr;min-height:100vh}
.sidebar{
  background:linear-gradient(180deg,var(--navy-1),var(--navy-2) 60%,var(--navy-3));
  color:#cdd6ee;padding:20px 14px;display:flex;flex-direction:column;gap:3px;position:sticky;top:0;height:100vh;
}
.sidebar .brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:16px;padding:6px 8px 16px}
.sidebar .logo{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--blue),var(--green));
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:17px;font-weight:800;flex:none}
.nav-title{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:#6b78a3;padding:14px 12px 6px;font-weight:700}
.sidebar a{display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:10px;color:#c4cde6;font-weight:500;font-size:14px;transition:.15s;position:relative}
.sidebar a .ic{width:19px;height:19px;display:inline-flex}
.sidebar a .ic svg{width:19px;height:19px}
.sidebar a:hover{background:rgba(255,255,255,.07);color:#fff}
.sidebar a.active{background:rgba(255,255,255,.12);color:#fff;font-weight:600}
.sidebar a.active::before{content:"";position:absolute;left:-14px;top:9px;bottom:9px;width:4px;border-radius:0 4px 4px 0;background:linear-gradient(var(--blue),var(--green))}
.sidebar .spacer{flex:1}
.sidebar .who-mini{display:flex;align-items:center;gap:10px;padding:10px 8px;border-top:1px solid rgba(255,255,255,.1);margin-top:8px;color:#cdd6ee}
.sidebar .who-mini .avatar{width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,var(--blue),var(--green));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700}

.content{padding:22px 28px 40px;max-width:1280px;width:100%}
.topbar{display:flex;align-items:center;justify-content:space-between;margin:-22px -28px 20px;padding:16px 28px;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.topbar .brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink)}
.topbar .logo{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--blue),var(--green));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:15px}
.who{display:flex;align-items:center;gap:10px;color:var(--slate);font-weight:500}
.avatar{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--blue),var(--green));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;flex:none}

/* ---------------- 页面头 ---------------- */
.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:16px;flex-wrap:wrap}
.page-head h1{font-size:21px}
.page-head .desc{color:var(--muted);font-size:13px;margin-top:3px}

/* ---------------- KPI ---------------- */
.kpis{display:grid;grid-template-columns:repeat(auto-fill,minmax(168px,1fr));gap:14px;margin-bottom:20px}
.kpi{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;box-shadow:var(--shadow);transition:.18s;position:relative;overflow:hidden}
.kpi:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.kpi b{display:block;font-size:27px;font-weight:800;letter-spacing:-.02em;line-height:1.1;color:var(--ink)}
.kpi span{display:block;color:var(--slate);font-size:13px;margin-top:6px}
.kpi .chip{position:absolute;top:16px;right:16px;width:38px;height:38px;border-radius:11px;display:flex;align-items:center;justify-content:center}
.kpi .chip svg{width:20px;height:20px}
.kpi .chip.b{background:var(--blue-soft);color:var(--blue)}
.kpi .chip.g{background:var(--green-soft);color:var(--green-d)}
.kpi .chip.a{background:#fff3df;color:var(--amber)}

/* ---------------- 卡片 ---------------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);margin-bottom:18px}
.card>h2{font-size:17px;display:flex;align-items:center;gap:9px;margin-bottom:10px}
.card>h2 .ic{width:20px;height:20px;color:var(--blue);display:inline-flex}
.card>h2 .ic svg{width:20px;height:20px}
.muted{color:var(--slate)}

/* ---------------- 表格 ---------------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:13px}
table{width:100%;border-collapse:collapse;font-size:14px}
thead th{background:#f8fafc;color:var(--slate);font-weight:600;font-size:12.5px;text-align:left;padding:12px 16px;border-bottom:1px solid var(--line);white-space:nowrap}
thead th.num{text-align:right}
tbody td{padding:13px 16px;border-bottom:1px solid var(--line-soft);color:var(--ink);vertical-align:middle}
tbody td.num{text-align:right;font-variant-numeric:tabular-nums}
tbody tr:last-child td{border-bottom:none}
tbody tr{transition:.12s}
tbody tr:hover{background:#f9fbff}
.card[style*="padding:0"]{padding:0;overflow:hidden}
.card[style*="padding:0"] .table-wrap{border:none;border-radius:0}
.tag{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;font-size:12.5px;font-weight:600;line-height:1.6}
.tag.green{background:var(--green-soft);color:var(--green-d)}
.tag.gray{background:#eef1f6;color:var(--slate)}
.tag.blue{background:var(--blue-soft);color:var(--blue-d)}
.pill{display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:700}
.pill.green{background:var(--green-soft);color:var(--green-d)}
.pill.blue{background:var(--blue-soft);color:var(--blue-d)}

/* ---------------- 空状态 ---------------- */
.empty{text-align:center;padding:46px 20px;color:var(--muted)}
.empty svg{width:46px;height:46px;opacity:.4;margin-bottom:10px}
.empty p{margin:0;font-size:14px}

/* ---------------- 弹窗 / Toast / 确认 ---------------- */
.modal-mask,.confirm-mask{position:fixed;inset:0;background:rgba(15,23,42,.5);backdrop-filter:blur(3px);display:flex;align-items:center;justify-content:center;z-index:50;padding:20px;animation:fade .18s ease}
@keyframes fade{from{opacity:0}to{opacity:1}}
.modal{background:#fff;border-radius:18px;width:440px;max-width:100%;max-height:90vh;overflow:auto;box-shadow:var(--shadow-lg);animation:pop .2s cubic-bezier(.2,.8,.3,1.1)}
.modal.wide{width:560px}
.m-head{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid var(--line);position:sticky;top:0;background:#fff;z-index:1}
.m-head h3{font-size:17px}
.m-head .x{width:30px;height:30px;border:none;background:#f1f5f9;border-radius:9px;font-size:18px;color:var(--slate);cursor:pointer;line-height:1}
.m-head .x:hover{background:#e6ebf3}
.m-body{padding:22px}
.confirm{background:#fff;border-radius:16px;width:380px;max-width:100%;padding:26px 24px;text-align:center;box-shadow:var(--shadow-lg);animation:pop .2s ease}
.confirm .ci{width:48px;height:48px;border-radius:50%;margin:0 auto 12px;display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:800}
.confirm .ci.danger{background:var(--red-soft);color:var(--red)}
.confirm .ci.info{background:var(--blue-soft);color:var(--blue)}
.confirm h4{font-size:17px;margin-bottom:6px}
.confirm p{color:var(--slate);font-size:14px;margin:0 0 18px}
.confirm .cbtns{display:flex;gap:10px;justify-content:center}
@keyframes pop{from{transform:translateY(8px) scale(.98);opacity:0}to{transform:none;opacity:1}}
.xkb-toasts{position:fixed;top:18px;right:18px;z-index:80;display:flex;flex-direction:column;gap:10px}
.xkb-toast{background:#fff;border:1px solid var(--line);border-left:4px solid var(--blue);border-radius:11px;padding:11px 16px;box-shadow:var(--shadow);display:flex;align-items:center;gap:9px;font-weight:500;font-size:14px;min-width:200px;animation:slidein .22s ease}
.xkb-toast.success{border-left-color:var(--green)}
.xkb-toast.error{border-left-color:var(--red)}
.xkb-toast .dot{width:8px;height:8px;border-radius:50%;background:var(--blue)}
.xkb-toast.success .dot{background:var(--green)}
.xkb-toast.error .dot{background:var(--red)}
@keyframes slidein{from{transform:translateX(30px);opacity:0}to{transform:none;opacity:1}}

/* ---------------- 响应式 ---------------- */
@media(max-width:980px){
  .login-wrap{grid-template-columns:1fr}
  .login-hero{display:none}
}
@media(max-width:760px){
  .shell{grid-template-columns:1fr}
  .sidebar{position:static;height:auto;flex-direction:row;overflow-x:auto;gap:2px;padding:8px}
  .sidebar .brand,.nav-title,.spacer,.who-mini{display:none}
  .sidebar a{padding:9px 12px;white-space:nowrap}
  .sidebar a.active::before{display:none}
  .sidebar a.active{background:rgba(255,255,255,.16)}
  .content{padding:16px}
  .topbar{margin:-16px -16px 16px;padding:12px 16px}
  .grid2{grid-template-columns:1fr}
}

/* ===== 学校钻取式管理 ===== */
.crumb{display:flex;gap:8px;align-items:center;font-size:13px;color:var(--slate);margin-bottom:6px}
.crumb a{color:var(--blue);cursor:pointer;font-weight:600}
.crumb a:hover{text-decoration:underline}
.tabs{display:flex;gap:6px;margin:0 0 16px;flex-wrap:wrap}
.tabs a{padding:8px 18px;border-radius:999px;font-size:14px;font-weight:600;color:var(--slate);background:#fff;border:1px solid #e2e8f0;cursor:pointer;transition:.15s}
.tabs a:hover{border-color:var(--blue);color:var(--blue)}
.tabs a.active{background:var(--blue);border-color:var(--blue);color:#fff;box-shadow:0 4px 12px rgba(47,107,255,.25)}
.school-card{padding:18px 20px}
.sc-head{display:flex;gap:12px;align-items:center}
.sc-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:14px;text-align:center}
.sc-stats div{background:#f6f8fb;border-radius:10px;padding:8px 4px}
.sc-stats b{display:block;font-size:18px;color:var(--ink)}
.sc-stats span{font-size:12px;color:var(--slate)}