:root{--blue:#1967d2;--ink:#18243a;--muted:#718096;--line:#e5eaf2;--bg:#f4f7fb}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC",sans-serif;color:var(--ink)}
header{height:72px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100% - 1180px)/2))}
.brand{display:flex;align-items:center;gap:12px}.brand i{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,#1769d2,#44a2ff);color:#fff;display:grid;place-items:center;font-style:normal;font-weight:800}.brand span{display:flex;flex-direction:column}.brand small{color:var(--muted);margin-top:3px}
.teacher{background:#edf5ff;color:var(--blue);padding:9px 14px;border-radius:99px;font-weight:650}
main{max-width:1180px;margin:auto;padding:28px 20px 50px}.hero{display:flex;justify-content:space-between;align-items:end;margin-bottom:22px}.hero h1{margin:0;font-size:29px}.hero p{margin:9px 0 0;color:var(--muted)}time{color:var(--muted)}
nav{display:flex;gap:8px;margin-bottom:16px}button{font:inherit;border:0;cursor:pointer}nav button{padding:10px 18px;border-radius:10px;background:transparent;color:var(--muted);white-space:nowrap}nav button.active{background:#fff;color:var(--blue);box-shadow:0 5px 18px #dce5f2}
.panel{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(300px,.8fr);gap:18px}.editor,aside{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:0 10px 30px rgba(31,49,79,.05)}.full{grid-column:1/-1}.hidden{display:none!important}
.children{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin:10px 0 20px}.children button{padding:14px;text-align:left;border:1px solid var(--line);border-radius:12px;background:#fff}.children button b,.children button span{display:block}.children button span{font-size:12px;color:var(--muted);margin-top:5px}.children button.active,.services button.active{border-color:var(--blue);background:#eff6ff;color:var(--blue)}
.services{display:flex;gap:9px;margin:10px 0 22px;flex-wrap:wrap}.services button,.quick button{padding:8px 12px;border-radius:9px;background:#f1f5f9;color:#536174}.form{display:grid;grid-template-columns:1fr 1fr;gap:16px}.form>div{display:flex;flex-direction:column;gap:7px}.form .wide,.form fieldset.wide,.form label.wide{grid-column:1/-1}label{font-size:14px;font-weight:650}select,input,textarea{width:100%;border:1px solid #dbe2ec;border-radius:10px;padding:11px 12px;background:#fff;font:inherit;color:var(--ink)}textarea{min-height:86px;resize:vertical}.wide textarea{min-height:112px}.quick{display:flex;flex-wrap:wrap;gap:7px}.actions{display:flex;justify-content:flex-end;gap:10px;margin-top:20px}.actions button,.copy{padding:11px 18px;border-radius:10px}.muted{background:#eef2f7;color:#536174}.primary,.copy{background:var(--blue);color:#fff}button:disabled,input:disabled,select:disabled,textarea:disabled{opacity:.55;cursor:not-allowed}
aside>span{color:var(--muted);font-size:13px}aside h2{margin:18px 0}.preview{white-space:pre-wrap;line-height:1.75;background:#f7faff;border-radius:13px;padding:17px;min-height:360px}.copy{width:100%;margin-top:16px}.record{display:grid;grid-template-columns:100px 1fr auto;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}.record p{margin:5px 0;color:var(--muted)}.empty{padding:60px;text-align:center;color:var(--muted)}.empty.compact{padding:30px;grid-column:1/-1}
.section-title{display:flex;justify-content:space-between;gap:18px;align-items:flex-start;margin-bottom:20px}.section-title h2{margin:0}.section-title p{margin:7px 0 0;color:var(--muted);font-size:13px;line-height:1.55}.section-title>span{white-space:nowrap;color:var(--muted);font-size:13px}.admin-form{align-self:start}.admin-list{min-width:0}.admin-form fieldset{border:0;padding:0;margin:0}.admin-form legend{font-size:14px;font-weight:650;margin-bottom:9px}.check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}.check-grid label{display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:10px;padding:11px;background:#f8fafc}.check-grid input,.switch-row input{width:auto}.switch-row{display:flex;align-items:center;gap:9px}.child-row{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:16px 0;border-bottom:1px solid var(--line)}.child-row.inactive{opacity:.64}.child-row-title{display:flex;align-items:center;gap:9px}.child-row p{margin:5px 0;color:#536174}.child-row small{color:var(--muted)}.status{font-size:11px;border-radius:99px;padding:3px 8px;color:#14734c;background:#e9f8f0}.status.off{color:#687386;background:#eef1f5}.row-actions{display:flex;gap:7px;flex-shrink:0}.small{padding:8px 11px;border-radius:8px}.danger{background:#fff0f0;color:#b43a3a}
#toast{position:fixed;left:50%;bottom:32px;transform:translateX(-50%);background:#172238;color:#fff;padding:12px 18px;border-radius:10px;opacity:0;pointer-events:none;transition:.2s;z-index:20}#toast.show{opacity:1}#toast.error{background:#9f2f2f}
@media(max-width:760px){header{height:62px;padding:0 16px}main{padding:20px 14px}.hero{display:block}.hero h1{font-size:23px}.hero time{display:block;margin-top:10px}.panel{grid-template-columns:1fr}.editor,aside{padding:17px}.form{grid-template-columns:1fr}.form .wide,.form fieldset.wide,.form label.wide{grid-column:auto}.children{grid-template-columns:1fr 1fr}.record{grid-template-columns:82px 1fr}.record>span{display:none}nav{position:sticky;top:0;z-index:3;background:var(--bg);padding:7px 0;overflow-x:auto}.check-grid{grid-template-columns:1fr}.child-row{align-items:flex-start;flex-direction:column}.row-actions{width:100%}.row-actions button{flex:1}}