*{box-sizing:border-box}body{margin:0;font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;background:linear-gradient(135deg,#eef2ff,#f8fafc);color:#1e293b;min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}
.card{background:#fff;border-radius:16px;box-shadow:0 10px 40px rgba(30,41,59,.08);padding:32px;max-width:640px;width:100%}h1{margin:0 0 6px;font-size:24px}.sub{color:#64748b;margin:0 0 20px;font-size:14px}
.drop{border:2px dashed #c7d2fe;border-radius:12px;padding:36px 16px;text-align:center;cursor:pointer;transition:.2s;color:#475569}.drop.over{background:#eef2ff;border-color:#6366f1}
.row{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0}.btn{display:inline-block;background:#6366f1;color:#fff;border:0;border-radius:10px;padding:10px 18px;font-size:15px;cursor:pointer;text-decoration:none}.btn.g{background:#e2e8f0;color:#334155}.btn:disabled{opacity:.5;cursor:not-allowed}
input[type=text]{flex:1;min-width:160px;padding:10px;border:1px solid #cbd5e1;border-radius:10px;font-size:14px}
ul{list-style:none;padding:0;margin:10px 0;max-height:200px;overflow:auto;font-size:13px;color:#475569}li{display:flex;justify-content:space-between;padding:4px 0;border-bottom:1px solid #f1f5f9}
.bar{height:10px;background:#e2e8f0;border-radius:6px;overflow:hidden;margin:12px 0 4px}.bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,#6366f1,#22d3ee);transition:width .2s}
.msg{font-size:14px;margin-top:8px}.err{color:#dc2626}.ok{background:#f0fdf4;border:1px solid #bbf7d0;border-radius:12px;padding:16px;margin-top:16px}.foot{color:#94a3b8;font-size:12px;margin-top:20px}