:root{font-family:system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;color:#233348;background:#f4f6fa;font-synthesis:none;--muted:#69788d;--line:#e3e8f0;--blue:#245bd5}
*{box-sizing:border-box}body{margin:0}button,input,textarea{font:inherit}button,a,input,textarea{-webkit-tap-highlight-color:transparent}[hidden]{display:none!important}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}a{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #82a8fc;outline-offset:3px}.shell{width:min(1120px,100%);margin:auto;padding:30px 28px 22px}.topbar{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:40px}.brand{display:flex;align-items:center;gap:12px;font-size:20px;font-weight:700;text-decoration:none;letter-spacing:-.4px}.brand-icon{display:grid;place-items:center;background:var(--blue);color:white;width:42px;height:42px;border-radius:12px;font-size:23px;font-weight:600}.brand-caption{font-size:13px;letter-spacing:0;color:var(--muted);font-weight:400;margin-left:10px}.account{display:flex;align-items:center;gap:14px;font-size:13px}.preview-banner{position:sticky;top:0;z-index:5;text-align:center;background:#fff0c1;border-bottom:1px solid #e8c773;color:#754d00;padding:12px 20px;font-size:14px;font-weight:700}.panel{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 3px 12px #22334d04}.login-panel{max-width:450px;margin:65px auto 90px;padding:36px}.eyebrow{font-size:12px;font-weight:600;letter-spacing:1.8px;color:var(--blue)}h1{font-size:30px;letter-spacing:-.8px;margin:12px 0}h2{font-size:16px;margin:0;display:flex;align-items:center;gap:10px}h3{font-size:15px;font-weight:500}.intro{font-size:14px;line-height:1.8;color:var(--muted);margin:0}label{display:block;font-size:13px;font-weight:600;margin:24px 0 9px}input[type=text],input[type=password]{display:block;width:100%;border:1px solid #d4dce8;border-radius:8px;height:44px;padding:0 12px;background:#fff;color:#233348}#login-form .primary{margin-top:28px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:40px;gap:8px;padding:10px 16px;font-size:13px;font-weight:500;color:#34455e;background:white;border:1px solid #d8e0ec;border-radius:8px;transition:background .15s}.button:hover:enabled{background:#f2f6fd}.button.primary{background:var(--blue);border-color:var(--blue);color:white;min-height:46px}.button.primary:hover:enabled{background:#194bb9}.button.quiet{border-color:transparent;background:transparent;color:#56677e;padding:8px}.full{width:100%}.small-note{font-size:12px;color:var(--muted);text-align:center;line-height:1.8;margin:12px 0 0}.preview-credentials{font-size:12px;color:#775100;background:#fff8e5;padding:12px;border-radius:8px;line-height:1.8}.workspace-heading{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:28px}.workspace-heading h1{font-size:28px}.service{text-align:right;flex-shrink:0}.service p{font-size:12px;color:var(--muted);max-width:280px;line-height:1.6;margin:10px 0 0}.workspace-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:22px}.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:22px;border-bottom:1px solid var(--line)}.step{display:grid;place-items:center;width:24px;height:24px;background:#edf3ff;color:var(--blue);border-radius:7px;font-size:12px}.muted{font-size:12px;color:var(--muted);line-height:1.7;margin:0}.panel-body{padding:22px}.dropzone{border:1.5px dashed #cdd8e9;border-radius:12px;background:#f9fbfe;text-align:center;padding:30px 15px}.dropzone.dragging{border-color:var(--blue);background:#edf3ff}.upload-icon{display:grid;place-items:center;margin:auto;width:44px;height:44px;border-radius:12px;background:#eaf0fc;color:var(--blue);font-size:28px}.drop-title{font-size:15px;font-weight:600;margin:17px 0 8px}.dropzone .button{margin-top:20px}.file-details{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:16px 0 12px}.file-details>div{min-width:0}.file-name{font-size:13px;margin:0 0 3px;overflow-wrap:anywhere}.file-details .button{flex-shrink:0}.image-preview{background:#f3f5f9;border:1px solid var(--line);border-radius:10px;display:grid;place-items:center;height:245px;overflow:hidden;margin-bottom:18px}.image-preview img{max-width:100%;max-height:245px;object-fit:contain}.upload-panel .primary{margin-top:20px}.result-panel{display:flex;flex-direction:column}.result-body{display:flex;flex-direction:column;flex:1;min-height:375px;gap:12px}.empty-result{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;flex:1;color:#7e8da3;min-height:270px}.empty-result>span{font-family:Georgia,serif;font-size:45px;color:#b1bdd0;letter-spacing:-2px}.empty-result h3{margin:18px 0 10px;color:#5c6d86}.empty-result p{font-size:12px;line-height:1.8;margin:0}textarea{width:100%;min-height:270px;flex:1;resize:vertical;border:1px solid var(--line);border-radius:9px;background:#fafbfd;padding:14px;color:#233348;font-size:14px;line-height:1.9}.result-actions{display:flex;flex-wrap:wrap;gap:8px}.warning,.notice{font-size:13px;line-height:1.8;padding:12px 15px;border-radius:9px;margin:0;background:#fff8e6;color:#7b5717;border:1px solid #efdeb1}.notice{margin-bottom:20px;overflow-wrap:anywhere}.notice[data-kind=error]{background:#fff1ef;color:#a6342a;border-color:#efc6c1}.notice[data-kind=success]{background:#eff8f4;color:#286c4f;border-color:#c7e5d6}.workflow-note{font-size:12px;line-height:1.9;color:var(--muted);background:#eaf0f7;border-radius:10px;margin:22px 0 0;padding:15px 20px}footer{font-size:11px;text-align:center;color:#8795a9;margin-top:32px}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}#retry-session{margin-bottom:20px}#recognize-button[aria-busy=true]::before{content:"";width:14px;height:14px;border:2px solid #ffffff70;border-top-color:white;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}
@media(max-width:800px){.workspace-grid{grid-template-columns:1fr}.result-body{min-height:345px}.shell{padding:24px 20px}.topbar{margin-bottom:30px}.login-panel{margin-top:45px}.brand-caption{display:block;margin:3px 0 0;font-size:11px}.brand{font-size:18px}}
@media(max-width:480px){.shell{padding:20px 14px}.login-panel{padding:26px 22px;margin:35px auto 60px}h1{font-size:26px}.workspace-heading{align-items:flex-start;flex-direction:column;gap:18px}.service{display:flex;align-items:center;gap:12px;text-align:left}.service p{margin:0;max-width:190px}.panel-heading,.panel-body{padding:18px}.account{gap:4px;max-width:50%}#username{max-width:90px;overflow:hidden;text-overflow:ellipsis}.preview-banner{font-size:12px;padding:10px}.result-actions .button{flex:1;white-space:nowrap}.workflow-note{padding:14px}.image-preview{height:220px}.image-preview img{max-height:220px}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}