:root{--bg: #f4f6fb;--card: #ffffff;--primary: #2563eb;--primary-hover: #1d4ed8;--text: #1e293b;--muted: #64748b;--border: #e2e8f0;--danger: #dc2626;--success: #16a34a;--warning: #d97706}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text)}a{color:inherit;text-decoration:none}button{cursor:pointer;font-family:inherit}input{font-family:inherit}.app-layout{min-height:100vh;display:flex;flex-direction:column}.app-header{background:var(--card);border-bottom:1px solid var(--border);padding:0 24px;height:60px;display:flex;align-items:center;justify-content:space-between}.app-header h1{margin:0;font-size:18px}.app-main{flex:1;padding:24px;max-width:1100px;margin:0 auto;width:100%}.card{background:var(--card);border-radius:12px;border:1px solid var(--border);padding:24px;box-shadow:0 1px 3px #0000000a}.stats-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-bottom:24px}.stat-card{background:linear-gradient(135deg,#2563eb,#3b82f6);color:#fff;border-radius:12px;padding:20px}.stat-card .label{opacity:.85;font-size:14px}.stat-card .value{font-size:28px;font-weight:700;margin-top:8px}.upload-zone{border:2px dashed var(--border);border-radius:12px;padding:40px;text-align:center;transition:border-color .2s,background .2s;margin-bottom:24px}.upload-zone.dragover{border-color:var(--primary);background:#eff6ff}.upload-zone p{color:var(--muted);margin:8px 0 16px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:8px 16px;border-radius:8px;border:none;font-size:14px;font-weight:500;transition:background .2s}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-danger{background:#fef2f2;color:var(--danger);border:1px solid #fecaca}.btn-danger:hover{background:#fee2e2}.btn-ghost{background:transparent;color:var(--muted);border:1px solid var(--border)}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--border)}.table th{font-size:13px;color:var(--muted);font-weight:600}.badge{display:inline-block;padding:2px 10px;border-radius:999px;font-size:12px;font-weight:500}.badge-ready{background:#dcfce7;color:var(--success)}.badge-processing{background:#fef3c7;color:var(--warning)}.badge-failed{background:#fee2e2;color:var(--danger)}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#1e3a5f 0%,#2563eb 100%)}.login-card{width:100%;max-width:400px;background:white;border-radius:16px;padding:40px;box-shadow:0 20px 60px #0003}.login-card h2{margin:0 0 8px;text-align:center}.login-card .subtitle{text-align:center;color:var(--muted);margin-bottom:32px;font-size:14px}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:6px;font-size:14px;font-weight:500}.form-group input{width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:8px;font-size:14px}.form-group input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #2563eb26}.error-msg{color:var(--danger);font-size:13px;margin-top:8px}.empty-state{text-align:center;padding:48px;color:var(--muted)}