:root{--blue:#0966c3;--blue-dark:#07529c;--white:#ffffff;--bg:#f4f7fc;--text:#1a1f2b;--muted:#5b6472;--border:#dbe4f0;--rust:#c2410c}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.65}header{background:var(--blue);color:var(--white);padding:14px 20px;display:flex;align-items:center;gap:10px;position:sticky;top:0;z-index:10;box-shadow:0 2px 10px rgba(0,0,0,0.08)}header img{width:32px;height:32px;border-radius:50%;flex-shrink:0;background:var(--white)}header .title{font-weight:600;font-size:15px}.toolbar{max-width:820px;margin:20px auto 0;padding:0 20px;display:flex;gap:8px}.toolbar input{flex:1;padding:10px 14px;border:1px solid var(--border);border-radius:8px;font-size:14px;outline:none}.toolbar input:focus{border-color:var(--blue)}.toolbar button{background:var(--blue);color:var(--white);border:none;border-radius:8px;padding:10px 18px;font-size:14px;font-weight:600;cursor:pointer}.toolbar button:hover{background:var(--blue-dark)}main{max-width:820px;margin:20px auto 40px;background:var(--white);border:1px solid var(--border);border-radius:12px;padding:36px 42px;box-shadow:0 4px 24px rgba(0,40,120,0.05);min-height:200px}#status{color:var(--muted);font-size:14px}#content h1,#content h2,#content h3{color:var(--blue-dark)}#content h1{border-bottom:2px solid var(--border);padding-bottom:8px}#content a{color:var(--blue)}#content code{background:var(--bg);padding:2px 6px;border-radius:4px;font-size:0.9em}#content pre{background:#0d1117;color:#e6edf3;padding:16px;border-radius:8px;overflow-x:auto}#content pre code{background:none;color:inherit;padding:0}#content blockquote{border-left:4px solid var(--blue);margin:0;padding:4px 16px;color:var(--muted);background:var(--bg);border-radius:0 6px 6px 0}#content table{border-collapse:collapse;width:100%}#content th,#content td{border:1px solid var(--border);padding:8px 12px}#content th{background:var(--bg)}#content img{max-width:100%;border-radius:6px}footer{max-width:820px;margin:0 auto 30px;padding:0 20px}.footer-legal{text-align:center;margin-bottom:8px;font-size:11px}.footer-legal a{color:var(--muted);text-decoration:none;border-bottom:1px solid var(--border)}.footer-legal a:hover{color:var(--blue);border-bottom-color:var(--blue)}.footer-legal span{color:var(--border);margin:0 6px}.brand-mark{text-align:center;pointer-events:none}.brand-mark .brand-sig{display:flex;align-items:center;justify-content:center;gap:6px;font-family:'IBM Plex Mono',monospace;font-size:9px;letter-spacing:0.03em;color:rgba(91,100,114,0.75)}.brand-mark .brand-icon{width:14px;height:14px;border-radius:50%;flex-shrink:0}.brand-mark .brand-sig a{color:rgba(9,102,195,0.85);pointer-events:auto;text-decoration:none;border-bottom:1px solid rgba(9,102,195,0.4)}.brand-mark .brand-sig a:hover{color:var(--blue-dark);border-bottom-color:var(--blue-dark)}.brand-mark .claude-star{color:var(--rust);font-size:14px;display:inline-block}.brand-mark .brand-inspired{margin-top:1px;font-family:'IBM Plex Mono',monospace;font-size:8.5px;color:rgba(91,100,114,0.5)}.brand-mark .brand-inspired a{color:rgba(9,102,195,0.6);pointer-events:auto;text-decoration:none;border-bottom:1px solid rgba(9,102,195,0.25)}.brand-mark .brand-inspired a:hover{color:var(--blue-dark)}.divider{max-width:820px;margin:16px auto 0;padding:0 20px;display:flex;align-items:center;gap:12px;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:0.05em}.divider::before,.divider::after{content:"";flex:1;height:1px;background:var(--border)}.upload-zone{max-width:820px;margin:14px auto 0;padding:20px;border:2px dashed var(--border);border-radius:10px;background:var(--white);text-align:center;transition:border-color .15s ease,background .15s ease}.upload-zone.dragover{border-color:var(--blue);background:#eef4fd}.upload-label{display:inline-block;background:var(--blue);color:var(--white);border:none;border-radius:8px;padding:9px 16px;font-size:14px;font-weight:600;cursor:pointer}.upload-label:hover{background:var(--blue-dark)}.upload-hint{display:block;margin-top:8px;color:var(--muted);font-size:13px}.local-files-list{display:none;flex-wrap:wrap;justify-content:center;gap:8px;margin-top:14px;padding-top:14px;border-top:1px solid var(--border)}.file-chip{pointer-events:auto;background:var(--bg);border:1px solid var(--border);color:var(--text);border-radius:20px;padding:6px 14px;font-size:13px;cursor:pointer;max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-chip:hover{border-color:var(--blue)}.file-chip.active{background:var(--blue);border-color:var(--blue);color:var(--white);font-weight:600}@media (max-width:600px){main{padding:24px 20px}.toolbar{flex-direction:column}.upload-zone{padding:16px}}