:root{--bg:#f4f6f8;--surface:#fff;--border:#d9e0e7;--text:#1c2530;--text-muted:#5b6878;--brand:#1d4ed8;--brand-dark:#1e40af;--ok:#15803d;--ok-bg:#e8f6ec;--bad:#b91c1c;--bad-bg:#fdecec;--warn:#a16207;--warn-bg:#fdf5e3;--info:#475569;--info-bg:#eef2f6;--radius:10px;--mono:ui-monospace, SFMono-Regular, "Cascadia Mono", Consolas, "Liberation Mono", monospace}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--text);-webkit-text-size-adjust:100%;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft YaHei,PingFang SC,Hiragino Sans GB,sans-serif;font-size:15px;line-height:1.6}.app{flex-direction:column;gap:14px;max-width:960px;margin:0 auto;padding:16px 14px 48px;display:flex}.app__header h1{letter-spacing:.2px;margin:0;font-size:20px}.app__subtitle{color:var(--text-muted);margin:2px 0 0;font-size:13px}.app__lead{color:var(--text-muted);margin:10px 0 0;font-size:14px}.app__footer{color:var(--text-muted);border-top:1px solid var(--border);padding-top:12px;font-size:12px}.app__footer p{margin:4px 0}#about-tool{max-width:960px;color:var(--text-muted);margin:0 auto;padding:8px 14px 48px;font-size:13px;line-height:1.7}#about-tool h2{color:var(--text);margin:0 0 8px;font-size:15px}#about-tool p,#about-tool li{margin:6px 0}#about-tool ul{padding-left:1.2em}.banner{border-radius:var(--radius);flex-wrap:wrap;gap:6px;padding:10px 12px;font-size:13px;display:flex}.banner--privacy{background:var(--ok-bg);color:var(--ok);border:1px solid #bfe3c9}.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius)}.panel__header{border-bottom:1px solid var(--border);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;padding:12px 14px;display:flex}.panel__header h2{margin:0;font-size:15px}.panel__body{flex-direction:column;gap:10px;padding:14px;display:flex}.panel--scope>summary{cursor:pointer;padding:12px 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var(--border);text-align:center;background:#fbfcfd;border-radius:8px;flex-direction:column;align-items:center;gap:8px;padding:14px;display:flex}.dropzone.is-over{border-color:var(--brand);background:#eef3ff}.dropzone p{color:var(--text-muted);margin:0;font-size:13px}.hint{color:var(--text-muted);margin:0;font-size:12.5px}.hint--warn{background:var(--warn-bg);color:var(--warn);border-radius:6px;padding:8px 10px}.hint--ok{background:var(--ok-bg);color:var(--ok);border-radius:6px;padding:8px 10px}.callout{border-radius:8px;flex-wrap:wrap;align-items:center;gap:8px;padding:10px 12px;font-size:13px;display:flex}.callout--ok{background:var(--ok-bg);color:var(--ok)}.callout--bad{background:var(--bad-bg);color:var(--bad)}.callout--scope{background:var(--info-bg);color:var(--info);border:1px solid var(--border)}.app-mode{justify-content:center;display:flex}.hint--bad{background:var(--bad-bg);color:var(--bad);border-radius:6px;padding:8px 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h1{font-size:24px}.batch-metrics{grid-template-columns:repeat(5,minmax(0,1fr))}}