:root{--bg: #0f172a;--card: #ffffff;--muted: #64748b;--line: #e2e8f0;--accent: #2563eb;--ok: #16a34a;--err: #dc2626}*{box-sizing:border-box}body{margin:0;font-family:Segoe UI,system-ui,sans-serif;background:linear-gradient(160deg,#eef2ff,#f8fafc);color:#0f172a}.wrap{max-width:640px;margin:0 auto;padding:28px 18px 48px}.brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}.brand h1{font-size:20px;margin:0}.badge{margin-left:auto;font-size:13px;padding:5px 10px;border-radius:999px;background:#e2e8f0;color:#475569}.badge.ok{background:#dcfce7;color:#166534}.badge.err{background:#fee2e2;color:#991b1b}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px;box-shadow:0 6px 24px #0f172a0f}.row{display:flex;gap:10px;align-items:center;margin-bottom:14px;flex-wrap:wrap}label{font-size:13px;color:var(--muted)}select{flex:1;min-width:200px;padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:#fff;font-size:14px}.drop{margin-top:6px;border:2px dashed #cbd5e1;border-radius:12px;padding:36px 16px;text-align:center;color:var(--muted);cursor:pointer;transition:.15s}.drop:hover,.drop.over{border-color:var(--accent);background:#f0f6ff;color:var(--accent)}.drop .big{font-size:34px}.drop .hint{font-size:12px;margin-top:6px}.status{margin-top:16px;padding:12px 14px;border-radius:10px;font-size:14px;background:#f1f5f9;color:#475569;min-height:20px}.status.ok{background:#dcfce7;color:#166534}.status.err{background:#fee2e2;color:#991b1b}.status.work{background:#fef9c3;color:#854d0e}.filelist{list-style:none;margin:12px 0 0;padding:0;font-size:13px}.filelist li{display:flex;align-items:center;gap:8px;padding:7px 10px;background:#f8fafc;border:1px solid var(--line);border-radius:8px;margin-bottom:6px}.filelist li .fn{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.filelist .rm{border:0;background:#fee2e2;color:#b91c1c;border-radius:6px;width:24px;height:24px;cursor:pointer;font-size:13px}.signbtn{margin-top:14px;width:100%;padding:12px;border:0;border-radius:10px;background:var(--accent);color:#fff;font-size:15px;font-weight:600;cursor:pointer}.signbtn:hover{background:#1d4ed8}.signbtn:disabled{opacity:.55;cursor:default}.recent{margin-top:22px}.recent h3{font-size:13px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;margin:0 0 8px}.recent ul{list-style:none;margin:0;padding:0;font-size:13px}.recent li{display:flex;gap:8px;padding:7px 0;border-bottom:1px dashed var(--line)}.foot{text-align:center;color:var(--muted);font-size:12px;margin-top:22px}