*{box-sizing:border-box}body{margin:0;background:#f7f4eb;color:#19243c;font:16px/1.65 system-ui,"Microsoft YaHei",sans-serif}header{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:22px max(24px,calc((100vw - 1200px)/2));background:#fffdf7;border-bottom:1px solid #e6e1d7}.brand{font-size:23px;font-weight:850;text-decoration:none}nav{display:flex;gap:22px;flex-wrap:wrap}a{color:#5147b7}main{max-width:540px;margin:60px auto 32px;padding:32px;background:white;border:1px solid #e6e1d7;border-radius:24px;box-shadow:0 12px 40px #19243c0a}h1{font-size:30px;line-height:1.3;margin:8px 0 24px}.eyebrow{font-size:14px;color:#665b83;margin:0}label{display:block;margin-top:20px;font-weight:650}input{display:block;width:100%;font:inherit;line-height:1.5;padding:12px;margin-top:7px;border:1px solid #aaa6b7;border-radius:10px}button{font:inherit;font-weight:700;color:white;background:#5c50d8;border:0;border-radius:12px;padding:12px 22px;margin-top:24px;cursor:pointer;width:100%}:focus-visible{outline:3px solid #d89128;outline-offset:3px}.notice,.error{padding:14px 16px;border-radius:12px;background:#f1eefb}.error{background:#fff0ee;color:#9c2727}.muted{font-size:14px;color:#666b78}footer{text-align:center;padding:16px 24px;font-size:14px;color:#666b78}.row{display:flex;gap:18px;flex-wrap:wrap}@media(max-width:600px){header{align-items:flex-start;flex-direction:column;padding:18px}nav{gap:12px}main{margin:24px 14px;padding:24px}h1{font-size:26px}}textarea,select{display:block;width:100%;font:inherit;padding:12px;margin-top:7px;border:1px solid #aaa6b7;border-radius:10px}textarea{resize:vertical}details{margin:18px 0}summary{cursor:pointer}pre,.draft-text{white-space:pre-wrap;overflow-wrap:anywhere}pre{padding:16px;background:#f7f4eb}article{margin:16px 0}.test-enable input{display:inline-block;width:auto;margin-right:8px}
header{padding-inline:clamp(24px,2vw,48px)}
.admin-layout{display:grid;grid-template-columns:216px minmax(0,1fr);gap:28px;margin:28px clamp(24px,2vw,48px);align-items:start}
.admin-sidebar{position:sticky;top:24px;padding:24px 18px;background:#fffdf7;border:1px solid #e6e1d7;border-radius:20px}
.admin-sidebar nav{display:flex;flex-direction:column;gap:8px;margin-top:22px}
.admin-sidebar a{padding:11px 14px;border-radius:10px;text-decoration:none;font-weight:650}
.admin-sidebar a[aria-current="page"]{background:#5556d9;color:white}
.admin-sidebar a:hover{box-shadow:inset 0 0 0 1px #c8c1eb}
.sidebar-bottom{display:grid;gap:6px;border-top:1px solid #e6e1d7;margin-top:28px;padding-top:16px;font-size:14px}
.admin-layout main{min-width:0;width:100%;max-width:none;margin:0;padding:32px;border-radius:20px}
.admin-layout main>h1{padding-bottom:22px;border-bottom:1px solid #ece8df}
.admin-layout main>p:not(.row):not(.notice):not(.error),.admin-layout .draft-text{max-width:90ch}
.admin-layout button{width:auto;min-width:140px}
.admin-layout input:not([type=hidden]):not([type=checkbox]),.admin-layout select{max-width:640px}
.admin-layout form{margin:20px 0}
.admin-layout form:has(>label:nth-of-type(3)){display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:28px;align-items:start}
.admin-layout form>details,.admin-layout form>h2,.admin-layout form>.notice,.admin-layout form>.error,.admin-layout form>button,.admin-layout form>p,.admin-layout form>div{grid-column:1/-1}
.admin-layout form>button{justify-self:start}
.admin-layout form>label:has(textarea){grid-column:1/-1}
.admin-layout textarea{min-height:120px;line-height:1.8}
.admin-layout details{padding:16px 20px;border:1px solid #e6e1d7;border-radius:12px;background:#fffdf9}
.admin-layout summary{font-weight:750}
.admin-layout article.notice{padding:20px 24px;margin:0;background:#faf9ff;border:1px solid #e4e0f0}
.admin-layout section[aria-label="学生列表"],.admin-card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,340px),1fr));gap:18px;margin-top:24px}
.admin-layout pre{overflow:auto;max-width:100%}
.admin-layout h2{font-size:21px;margin:0 0 12px}
@media(max-width:1000px){.admin-layout{grid-template-columns:180px minmax(0,1fr);gap:16px;margin:20px}.admin-layout main{padding:24px}.admin-layout form:has(>label:nth-of-type(3)){grid-template-columns:1fr}}