:root{--ink:#182b2b;--muted:#738181;--line:#e3e9e7;--green:#17665a;--bg:#f6f8f7;--pale:#eaf3ee;--amber:#8c631f}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.65 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}button,input,select{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer}button:disabled{opacity:.45;cursor:default}input,select{min-width:0;border:1px solid var(--line);border-radius:8px;padding:10px 12px;color:var(--ink);background:white}input:focus,select:focus,button:focus-visible{outline:2px solid #6eab93;outline-offset:2px}button{border:0;background:none;color:inherit}a{color:var(--green);text-decoration:none}a:hover{text-decoration:underline}[hidden]{display:none!important}h1,h2,p{margin-top:0}.brand{display:flex;align-items:center;gap:10px;font-size:21px;font-weight:650;letter-spacing:1px}.mark{display:inline-grid;place-items:center;border-radius:10px;width:34px;height:36px;background:var(--green);color:white;font:27px Georgia}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:700;color:var(--green)}.auth-shell{min-height:100vh;display:grid;grid-template-columns:46% 54%}.auth-intro{background:#153f37;color:#f4f5ec;padding:45px 52px;display:flex;flex-direction:column;justify-content:space-between;min-height:100vh;background-image:radial-gradient(circle at 10% 80%,#36695999,transparent 45%)}.auth-intro .mark{background:#eff4d9;color:#1a5044}.intro-copy .eyebrow{color:#b3c9a6}.intro-copy h1{font-family:Georgia,"Songti SC",serif;font-size:46px;font-weight:500;line-height:1.5;margin:20px 0}.intro-copy p{color:#c1d2ca;font-size:16px;line-height:2}.intro-footer{font-size:12px;letter-spacing:2px;color:#a5bbb1}.auth-main{display:grid;place-items:center;padding:32px}.login-card{width:min(380px,100%)}.login-card h2{font-size:28px;margin:12px 0}.login-card>p{color:var(--muted);font-size:14px}.login-card label,#passwordForm label{display:block;margin:22px 0;font-size:13px;font-weight:600}.login-card input,#passwordForm input{width:100%;display:block;margin-top:8px;padding:13px 14px}.primary{background:var(--green);color:white;border-radius:8px;padding:11px 22px;font-weight:600;white-space:nowrap}.primary:hover{background:#0e5147}.wide{width:100%}.wide span{float:right}.auth-footnote{font-size:12px;color:#8b9692;text-align:center;border-top:1px solid var(--line);margin-top:32px;padding-top:20px}.error{color:#a43d31!important;min-height:20px;font-size:13px}.workspace{display:flex;min-height:100vh}.sidebar{width:220px;background:white;border-right:1px solid var(--line);padding:30px 22px;position:fixed;inset:0 auto 0 0;display:flex;flex-direction:column}.side-caption{font-size:11px;color:#8b9892;letter-spacing:2px;margin:38px 12px 12px}.nav{width:100%;display:flex;align-items:center;text-align:left;gap:15px;padding:12px 16px;margin:7px 0;border-radius:8px;font-size:14px;color:#677a72}.nav span{font-size:22px;line-height:1}.nav.active{background:var(--pale);color:var(--green);font-weight:600}.sidebar-bottom{margin-top:auto;font-size:12px;color:#526e60;padding:20px 8px 0}.sidebar-bottom p{font-size:11px;color:#8b9892;margin:6px 0}.live-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:#5c9271;margin-right:6px}.main-shell{margin-left:220px;width:calc(100% - 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.active-filters{display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-size:12px;color:var(--muted);margin-top:18px}.filter-chip{background:#e9f3ef;color:var(--green);padding:7px 11px;border-radius:20px;font-size:12px}.search-help{margin-bottom:4px}.question-figures:empty{display:none}.question-figures{margin:12px 0 20px}.question-figures img{display:block;max-width:100%;max-height:360px;width:auto;height:auto;object-fit:contain;margin:12px auto}.question-content{line-height:1.9;margin:18px 0 24px;overflow-wrap:anywhere}.question-content p{margin:9px 0}.paper-preview{padding:28px 34px;line-height:1.9}.paper-preview h1{text-align:center;font-size:24px}.preview-question{padding:22px 0;border-bottom:1px solid var(--line)}.preview-answer{border-top:1px dashed var(--line);padding-top:14px;margin-top:20px;font-size:14px}.preview-answer h3{font-size:14px;color:var(--green)}#paperPreviewDialog{max-width:980px}.dialog-top{position:sticky;top:0;background:white;z-index:2}@media(max-width:650px){.paper-preview{padding:18px}.question-figures img{max-height:280px}}

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