:root{--bg:#f5f7fb;--panel:#fff;--ink:#172033;--muted:#6b7280;--line:#e5e7eb;--brand:#2563eb;--brand-soft:#eff6ff;--danger:#dc2626;--shadow:0 12px 35px #1d35570c}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}button,input,textarea,select{font:inherit}button{cursor:pointer;border:0}.hidden{display:none!important}.auth{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at top right,#dbeafe,transparent 38%),var(--bg)}.auth-card{width:min(420px,100%);background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:34px;box-shadow:var(--shadow)}.logo{display:flex;align-items:center;gap:12px;font-size:21px;font-weight:800}.logo-mark{width:38px;height:38px;display:grid;place-items:center;border-radius:12px;background:#1d4ed8;color:#fff;font-weight:900}.auth h1{font-size:28px;margin:28px 0 6px}.muted{color:var(--muted)}.field{display:grid;gap:6px;margin:16px 0}.field label{font-weight:650}.field input,.field textarea,.field select,.search{width:100%;border:1px solid #d1d5db;border-radius:9px;padding:10px 12px;background:#fff;color:var(--ink);outline:0}.field input:focus,.field textarea:focus,.field select:focus,.search:focus{border-color:var(--brand);box-shadow:0 0 0 3px #2563eb18}.btn{padding:9px 13px;border-radius:9px;background:#eef2f7;color:var(--ink);font-weight:650}.btn:hover{filter:brightness(.98)}.btn.primary{background:var(--brand);color:#fff}.btn.ghost{background:transparent;color:var(--brand)}.btn.danger{color:#fff;background:var(--danger)}.btn.small{padding:6px 9px;font-size:12px}.auth-actions{display:grid;gap:10px;margin-top:22px}.full{width:100%}.error{background:#fef2f2;color:#991b1b;border:1px solid #fecaca;padding:9px 11px;border-radius:9px;margin:12px 0}.notice{background:#fffbeb;color:#92400e;border:1px solid #fde68a;padding:10px 12px;border-radius:10px;margin:12px 0}.shell{min-height:100vh;display:grid;grid-template-columns:280px 1fr}.sidebar{background:#0f172a;color:#cbd5e1;padding:22px 14px;display:flex;flex-direction:column;min-height:100vh}.sidebar .logo{color:#fff;margin:0 10px 25px}.sidebar .logo-mark{background:#2563eb}.nav-title{font-size:11px;text-transform:uppercase;letter-spacing:.1em;color:#64748b;margin:15px 10px 8px}.repo-list,.doc-list{display:grid;gap:5px}.repo-item,.doc-item{padding:9px 11px;border-radius:9px;display:flex;align-items:center;gap:8px;cursor:pointer}.repo-item:hover,.doc-item:hover{background:#1e293b}.repo-item.active,.doc-item.active{background:#1d4ed8;color:#fff}.repo-item .grow,.doc-item .grow{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.repo-meta{font-size:11px;color:#94a3b8}.sidebar-bottom{margin-top:auto;display:grid;gap:7px}.sidebar-bottom .btn{background:#1e293b;color:#cbd5e1;text-align:left}.main{min-width:0;display:flex;flex-direction:column}.topbar{height:72px;padding:0 28px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:18px}.topbar h2{margin:0;font-size:18px}.top-actions{display:flex;align-items:center;gap:8px}.avatar{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--brand-soft);color:var(--brand);font-weight:800}.content{padding:24px 28px;min-width:0}.welcome{padding:25px;border:1px solid #bfdbfe;border-radius:16px;background:linear-gradient(135deg,#eff6ff,#fff);margin-bottom:20px}.welcome h1{margin:0 0 5px}.grid{display:grid;gap:16px}.grid.two{grid-template-columns:1.2fr .8fr}.card{background:var(--panel);border:1px solid var(--line);border-radius:15px;padding:18px;box-shadow:var(--shadow)}.card h3{margin:0 0 14px;font-size:16px}.card-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:13px}.card-head h3{margin:0}.toolbar{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.doc-list{max-height:calc(100vh - 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.account-page h2{margin:0 0 6px}.account-name{font-size:24px;font-weight:800;margin:8px 0}.account-page .card{min-height:220px}
.users-page h2{margin:0 0 6px}.users-page .card{min-height:220px}
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.tree-folder{margin:2px 0}.tree-folder summary{display:flex;align-items:center;gap:7px;min-height:34px;padding:5px 10px;border-radius:8px;cursor:pointer;color:#334155;font-weight:700;list-style:none}.tree-folder summary::-webkit-details-marker{display:none}.tree-folder summary:hover{background:#f1f5f9}.folder-icon{display:inline-block;width:14px;color:#64748b;transition:transform .15s ease}.tree-folder[open]>summary .folder-icon{transform:rotate(90deg)}.tree-children{margin-left:18px;border-left:1px solid #e2e8f0;padding-left:8px}.tree-folder+.tree-file,.tree-file+.tree-file{margin-top:2px}
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.focus-shell .topbar{display:none}.focus-shell .document-preview-page{min-height:100vh}.focus-shell .preview-toolbar{height:100vh}.focus-shell .document-preview-page .preview-full{min-height:100vh}
@media(max-width:760px){.focus-shell .preview-toolbar{height:100vh}.focus-shell .document-preview-page .preview-full{min-height:100vh}}
.focus-shell .document-preview-page{grid-template-columns:260px minmax(0,1fr) 340px}.preview-comment-lane{grid-column:3;grid-row:1;min-width:0;padding:16px;background:#f8fafc;border-left:1px solid var(--line);overflow:auto}.preview-comment-lane .lane-card{position:sticky;top:0;max-height:calc(100vh - 32px)}.preview-comment-list{max-height:calc(100vh - 230px)}.preview-comment-lane.collapsed{padding:10px;width:64px}.preview-comment-lane.collapsed .lane-card{padding:10px}@media(max-width:760px){.focus-shell .document-preview-page{grid-template-columns:240px minmax(0,1fr)}.preview-comment-lane{position:fixed;z-index:30;top:0;right:0;width:min(340px,calc(100vw - 40px));height:100vh;padding:0;box-shadow:-12px 0 30px #0f172a26}.preview-comment-lane .lane-card{height:100%;max-height:none;border-radius:0}.preview-comment-lane.collapsed{width:58px;display:block;padding:0}.preview-comment-lane.collapsed .lane-card{height:auto;margin-top:10px}}
.share-url{display:inline-block;max-width:360px;padding:0;border:0;background:transparent;color:var(--brand);font-size:12px;text-align:left;overflow-wrap:anywhere;cursor:pointer}.share-url:hover{text-decoration:underline}.copy-feedback{margin-left:6px;font-size:12px}.copy-feedback.ok{color:#15803d}.error-text{color:#b91c1c}
.tree-share{margin-left:4px;flex:none}
.ai-popover{display:grid;gap:10px}.ai-popover textarea{width:100%;min-height:110px;resize:vertical;border:1px solid #d1d5db;border-radius:9px;padding:10px;outline:0}.ai-popover textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px #2563eb18}.ai-popover #ai-popover-draft{min-height:260px;font:12px/1.55 ui-monospace,SFMono-Regular,Menlo,monospace;white-space:pre;overflow:auto}.ai-popover .ai-answer.visible{display:block;max-height:280px}
.ai-popover-result{display:none!important;min-height:150px!important;font:12px/1.55 ui-monospace,SFMono-Regular,Menlo,monospace;white-space:pre;overflow:auto;background:#f8fafc}.ai-popover-result.visible{display:block!important}.ai-feedback-label{margin-top:2px}
.sidebar{overflow-y:auto}.sidebar .nav-item{color:#cbd5e1}.sidebar .nav-item:hover,.sidebar .nav-item.active{color:#2563eb}.preview-ai textarea:disabled{background:#f8fafc;color:#64748b;cursor:not-allowed}.preview-ai #ai-instruction{min-height:120px}.preview-ai #ai-draft-editor{min-height:220px;font:12px/1.55 ui-monospace,SFMono-Regular,Menlo,monospace;white-space:pre;overflow:auto}.draft-label{margin-top:5px}.draft-actions{display:grid;grid-template-columns:auto 1fr;align-items:stretch}.draft-actions #commit{min-width:0}.repair-results{margin-top:14px}.repair-candidates{display:grid;gap:8px;max-height:360px;overflow:auto}.repair-candidate{display:grid;gap:4px;text-align:left;border:1px solid var(--line);border-radius:10px;background:#fff;padding:10px 12px;color:var(--ink);cursor:pointer}.repair-candidate:hover{border-color:var(--brand);background:#eff6ff}.repair-candidate span{font-size:12px;color:var(--muted);word-break:break-all}
.repo-details{display:grid;grid-template-columns:minmax(0,2fr) minmax(120px,1fr) minmax(0,1.4fr);gap:12px;margin-top:16px;padding:14px;border:1px solid var(--line);border-radius:10px;background:#f8fafc}.repo-details>div{display:grid;gap:4px;min-width:0}.repo-details strong,.repo-details code{overflow-wrap:anywhere}.repo-page{display:grid;gap:16px}.repo-page select{min-width:190px;padding:8px 10px;border:1px solid #cbd5e1;border-radius:8px;background:#fff;color:var(--ink)}.ai-popover-preview{display:none;gap:8px;padding-top:10px;border-top:1px solid var(--line)}.ai-popover-preview.visible{display:grid}.ai-popover-preview iframe{display:block;width:100%;height:min(52vh,520px);border:1px solid var(--line);border-radius:10px;background:#fff}@media(max-width:700px){.repo-details{grid-template-columns:1fr}.repo-page .card-head{align-items:flex-start;flex-direction:column}.repo-page select{width:100%}}
.tree-file.loading{opacity:.58;cursor:wait}.tree-file.loading .tree-share{pointer-events:none}
.preview-stage{grid-column:2;grid-row:1;position:relative;min-width:0;min-height:100vh}.preview-stage .preview-full{display:block}.preview-loading{position:absolute;inset:0;display:grid;place-items:center;background:#fff9;color:#475569;font-size:14px;pointer-events:none}
.preview-ai{display:grid;gap:8px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}.preview-ai h3{margin:0;font-size:14px}.preview-ai textarea{width:100%;min-height:110px;resize:vertical;border:1px solid #d1d5db;border-radius:9px;padding:9px;outline:0}.preview-ai textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px #2563eb18}.ai-answer{display:none;max-height:220px;overflow:auto;padding:9px;border-radius:9px;background:#f8fafc;border:1px solid var(--line);white-space:pre-wrap}.ai-answer.visible:not(:empty){display:block}.preview-commit{margin-top:4px}.comment-popover{position:fixed;z-index:20;width:min(330px,calc(100vw - 24px));padding:13px;background:#fff;border:1px solid #bfdbfe;border-radius:12px;box-shadow:0 16px 45px #0f172a33}.comment-popover b{display:block;margin-bottom:7px}.comment-selection{max-height:58px;overflow:auto;margin-bottom:8px;color:#475569;font-size:12px}.comment-popover textarea{display:block;width:100%;resize:vertical;border:1px solid #d1d5db;border-radius:8px;padding:8px;margin-bottom:8px}.comment-popover .toolbar{justify-content:flex-end}