:root{--ink:#172033;--muted:#7b8497;--line:#e9ecf2;--bg:#f7f8fb;--card:#fff;--blue:#4f68e8;--purple:#8b62dc;--green:#1ca68a;--shadow:0 16px 40px rgba(37,48,82,.07)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:'Noto Sans SC','DM Sans',sans-serif}button,input,select{font:inherit}button{cursor:pointer;border:0}.app-shell{display:flex;min-height:100vh}.sidebar{width:242px;background:#fff;border-right:1px solid var(--line);padding:28px 18px;display:flex;flex-direction:column;flex-shrink:0}.brand{display:flex;gap:11px;align-items:center;padding:0 10px 38px}.brand-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(140deg,#667ff2,#5362d8);color:#fff;display:grid;place-items:center;font-weight:800}.brand strong{display:block;font-size:17px}.brand span{font-size:11px;color:var(--muted)}.nav-list{display:grid;gap:7px}.nav-item{background:transparent;text-align:left;color:#8b92a1;padding:13px 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@media(max-width:640px){.app-shell{display:block}.sidebar{position:fixed;z-index:10;left:-250px;top:0;bottom:0;width:242px;transition:.25s;box-shadow:10px 0 30px rgba(20,30,60,.12)}.sidebar.open{left:0}.main{padding:18px 15px 40px}.mobile-menu{display:block}.topbar{gap:10px;margin-bottom:24px}.topbar>div:nth-child(2){flex:1}.topbar h1{font-size:20px}.hero-card{padding:23px 20px;min-height:285px}.hero-card h2{font-size:24px}.hero-orb{position:absolute;right:-45px;bottom:-38px;opacity:.65}.hero-actions{flex-direction:column;align-items:flex-start}.hero-actions button{width:100%;text-align:left}.section-heading{margin-top:25px}.date-chip{display:none}.panel{padding:16px}.view-header{gap:12px}.view-header h2{font-size:24px}.live{white-space:nowrap}.chat-panel,.result-panel{min-height:0}.chat-box{min-height:280px}.score-card{align-items:stretch}.score{font-size:32px}.metric{padding:8px}.metric b{font-size:16px}}
.upload-drop .ghost{background:#eef1ff;color:var(--blue);margin-left:6px}.upload-drop button:disabled{opacity:.6;cursor:wait}.ocr-text{white-space:pre-wrap;word-break:break-word;margin:10px 0 0;font:12px/1.7 inherit;color:var(--ink)}
.ai-markdown{white-space:pre-wrap;word-break:break-word;line-height:1.8}.ocr-details{margin-top:14px;font-size:11px;color:var(--muted)}.ocr-details summary{cursor:pointer;color:var(--blue)}
.account-area{position:relative}.avatar{border:0;cursor:pointer}.account-menu{display:none;position:absolute;right:0;top:48px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px;min-width:150px;z-index:20;box-shadow:var(--shadow)}.account-menu.open{display:grid;gap:8px}.account-menu span{font-size:11px;color:var(--muted);padding:4px}.account-menu button{background:#f7f8fb;border-radius:7px;padding:8px;text-align:left;font-size:11px;color:var(--ink)}
.auth-backdrop{display:none;position:fixed;inset:0;background:rgba(23,32,51,.35);z-index:50;place-items:center;padding:20px}.auth-backdrop.open{display:grid}.auth-card{position:relative;width:min(100%,380px);background:#fff;border-radius:18px;padding:28px;box-shadow:0 20px 60px rgba(23,32,51,.2)}.auth-card h2{margin:0 0 6px}.auth-card>p{font-size:12px;color:var(--muted);margin:0 0 18px}.auth-card input{display:block;width:100%;border:1px solid var(--line);border-radius:9px;padding:11px;margin:9px 0;outline:none}.auth-close{position:absolute;right:14px;top:10px;background:transparent;font-size:24px;color:var(--muted)}.auth-switch{display:block;background:transparent;color:var(--blue);font-size:12px;margin:14px auto 0}
.knowledge-list{display:grid;gap:8px}.knowledge-item{display:flex;justify-content:space-between;align-items:center;padding:11px 12px;border:1px solid var(--line);border-radius:9px;font-size:12px}.knowledge-item button{background:#fff0eb;color:#c86d51;border-radius:6px;padding:5px 8px;font-size:10px}