:root{--bg:#0d0f1a;--panel:#161a2c;--panel-2:#1e2338;--panel-3:#262c45;--border:#2a3052;--border-soft:#1f2540;--text:#eef0f7;--text-2:#c2c8e0;--muted:#8b92ad;--brand:#6366f1;--brand-2:#818cf8;--brand-3:#a78bfa;--brand-glow:rgba(99,102,241,0.35);--ok:#34d399;--warn:#fbbf24;--err:#f87171;--radius:18px;--radius-sm:12px;--radius-lg:24px;--shadow-sm:0 2px 8px rgba(0,0,0,0.18);--shadow-md:0 8px 24px rgba(0,0,0,0.28);--shadow-lg:0 18px 48px rgba(0,0,0,0.36);--shadow-brand:0 8px 28px rgba(99,102,241,0.35);--gradient-brand:linear-gradient(135deg,#6366f1,#a78bfa);--gradient-hero:linear-gradient(135deg,rgba(99,102,241,0.18),rgba(167,139,250,0.12) 50%,rgba(0,0,0,0))}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft 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var(--border);border-radius:var(--radius);padding:36px;text-align:center;background:var(--panel-2);cursor:pointer;transition:border-color .18s ease,background .18s ease}.dropzone:hover{border-color:var(--brand);background:rgba(99,102,241,.06)}label{display:block;color:var(--muted);margin-bottom:6px;font-size:13px}input,select,textarea{width:100%;background:var(--panel-2);border:1px solid var(--border);color:var(--text);border-radius:10px;padding:11px 14px;font-size:14px;transition:border-color .12s ease,box-shadow .12s ease}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-glow)}textarea{resize:vertical;min-height:64px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:var(--brand);color:#fff;border:none;border-radius:10px;padding:11px 18px;font-size:14px;font-weight:600;cursor:pointer;letter-spacing:.2px;transition:background .14s ease,transform .06s ease,box-shadow .14s ease;box-shadow:0 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