:root{color-scheme:light;--ink:#20282a;--muted:#647174;--line:#dce3e4;--accent:#13786b}*{box-sizing:border-box}body{margin:0;background:#f3f6f7;color:var(--ink);font:14px/1.6 "Microsoft YaHei","PingFang SC",sans-serif}button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer}a{color:var(--accent)}.edu-header{background:white;border-bottom:1px solid var(--line);padding:14px max(20px,calc((100% - 1440px)/2));display:flex;justify-content:space-between;align-items:center;gap:16px}.edu-brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:700}.edu-brand img{width:32px;height:32px}.edu-main{max-width:1480px;margin:auto;padding:24px}.edu-intro{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:24px}.edu-intro h1{font-size:28px;margin:0 0 6px;line-height:1.4}.edu-intro p{margin:0;color:var(--muted)}.edu-badge{font-size:12px;color:#146c55;white-space:nowrap}.edu-layout{display:grid;grid-template-columns:290px minmax(0,1fr);gap:28px;align-items:start}.edu-settings{background:white;border:1px solid var(--line);border-radius:8px;padding:20px;display:grid;gap:15px}.edu-settings h2{font-size:15px;margin:4px 0 0}.edu-settings label{display:grid;gap:6px;font-size:13px;font-weight:600}.edu-settings input,.edu-settings select,.edu-settings textarea{width:100%;min-width:0;background:#fff;border:1px solid #cbd5d7;border-radius:5px;padding:9px 10px}.edu-settings textarea{min-height:100px;resize:vertical;line-height:1.7}.edu-settings .check{display:flex;align-items:center;gap:8px}.check input{width:17px;height:17px}.edu-hint{font-size:12px;color:var(--muted);margin:0}.edu-actions{display:flex;gap:8px;flex-wrap:wrap}.edu-actions button{display:flex;align-items:center;justify-content:center;gap:6px;border:1px solid #cbd5d7;background:white;border-radius:5px;min-height:38px;padding:8px 12px;font-weight:600}.edu-actions .primary{background:var(--accent);color:white;border-color:var(--accent)}button:disabled{opacity:.5;cursor:wait}:focus-visible{outline:3px solid #63afa4;outline-offset:3px}.edu-toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:0 0 14px;flex-wrap:wrap}.edu-toolbar span{font-size:13px;color:var(--muted)}.edu-preview{background:#e5ebed;min-width:0;padding:24px;overflow:auto;border-radius:6px}.edu-paper{width:100%;max-width:794px;margin:0 auto 24px;background:white;box-shadow:0 4px 18px #22334416;aspect-ratio:210/297}.edu-paper:last-child{margin-bottom:0}.edu-paper svg{display:block;width:100%;height:auto}.edu-related{margin-top:30px;border-top:1px solid var(--line);padding-top:18px}.edu-related h2{font-size:18px}.edu-links{display:flex;gap:8px 18px;flex-wrap:wrap}.edu-links a{text-decoration:none;font-size:13px}.edu-error{color:#b32732;min-height:22px;margin:0}.edu-status{font-size:13px;color:var(--accent)}@media(min-width:1150px){.edu-settings{position:sticky;top:18px}}@media(max-width:850px){.edu-layout{grid-template-columns:1fr}.edu-settings{grid-template-columns:repeat(2,minmax(0,1fr))}.edu-settings h2,.edu-settings .wide,.edu-settings .edu-actions,.edu-settings .edu-error{grid-column:1/-1}.edu-intro{display:block}.edu-preview{padding:12px}.edu-main{padding:18px 12px}.edu-intro h1{font-size:24px}}@media(max-width:420px){.edu-settings{padding:14px;gap:12px}.edu-header{padding:12px}.edu-paper{min-width:0}}@page{size:A4 portrait;margin:0}@media print{body{background:white}.edu-header,.edu-intro,.edu-settings,.edu-toolbar,.edu-related,.edu-status{display:none!important}.edu-main,.edu-layout,.edu-preview{display:block;padding:0;margin:0;background:white;border:0;overflow:visible}.edu-paper{width:210mm;max-width:none;height:297mm;margin:0;box-shadow:none;break-after:page;page-break-after:always;break-inside:avoid}.edu-paper:last-child{break-after:auto;page-break-after:auto}.edu-paper svg{width:210mm;height:297mm}}
.edu-settings input[type="color"]{height:40px;padding:5px;cursor:pointer}.edu-actions select{border:1px solid #cbd5d7;border-radius:5px;background:white;padding:6px 8px;min-height:38px}.edu-settings input[type="checkbox"]{accent-color:#13786b}