:root{font-family:system-ui,-apple-system,"Segoe UI",sans-serif;color:#17295b;background:#f3f7ff;color-scheme:light}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:25px}body{margin:0;min-width:0;overflow-x:hidden;min-height:100vh;background:radial-gradient(ellipse at 10% 0%,#dceaff,transparent 42%),radial-gradient(ellipse at 100% 15%,#f3e6ff,transparent 36%),#f3f7ff}.rsb-shell{width:min(100%,970px);margin-inline:auto;padding-inline:18px}.rsb-top{background:white;border-bottom:1px solid #e1eaf9}.rsb-head{display:flex;align-items:center;justify-content:space-between;padding-block:18px;gap:10px}.rsb-brand{font-size:1.35rem;font-weight:900;color:#19376e;text-decoration:none;white-space:nowrap;letter-spacing:-1px}.rsb-brand span{color:#e4559b}.rsb-home{border:1px solid #dfebff;padding:10px 15px;border-radius:22px;background:#f4f8ff;text-decoration:none;color:#284d91;font-weight:800;font-size:.85rem;white-space:nowrap}.rsb-back{display:inline-flex;margin:25px 0 0;text-decoration:none;font-weight:750;color:#3b65af}.rsb-hero{text-align:center;padding:18px 0 25px}.rsb-hero h1{font-size:clamp(1.85rem,4.4vw,2.9rem);letter-spacing:-.055em;line-height:1.1;margin:12px auto 10px;text-wrap:balance}.rsb-hero p{color:#6a7795;margin:0}.rsb-star{font-size:2rem;animation:rsb-bounce 3s ease-in-out infinite}.rsb-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:19px;margin-bottom:45px}.rsb-card{min-width:0;background:#fff;border:1px solid #dfeaff;box-shadow:0 16px 40px #496fc016;border-radius:22px;padding:26px}.rsb-card h2{margin:0 0 23px;font-size:1.2rem}.rsb-card label{display:block;margin-bottom:10px;font-weight:800}.rsb-card input{width:100%;font:inherit;border:1.5px solid #cbd7ee;background:#fcfdff;color:#142852;border-radius:13px;padding:14px}.rsb-card input:focus{outline:3px solid #b9d4ff;border-color:#3f78e7}.rsb-card button,.rsb-download{display:flex;align-items:center;justify-content:center;width:100%;border:0;border-radius:13px;background:linear-gradient(115deg,#205ccc,#986ce9);color:#fff;text-decoration:none;padding:14px 12px;font:inherit;font-weight:800;cursor:pointer;margin-top:18px}.rsb-card button:disabled{opacity:.65;cursor:progress}.rsb-hint{font-size:12px;color:#6c7893;line-height:1.5;margin-top:12px}.rsb-result{scroll-margin-top:18px}.rsb-preview{min-height:260px;display:flex;align-items:center;justify-content:center;border-radius:15px;background:repeating-conic-gradient(#f2f5fb 0% 25%,white 0% 50%) 50% / 20px 20px;padding:12px;border:1px solid #e6edfa}.rsb-preview img{display:block;max-width:100%;max-height:310px;width:auto;height:auto;object-fit:contain}.rsb-status,#rsb-status{color:#254d98;font-weight:650;min-height:1rem;font-size:.9rem}.rsb-error{color:#b7284f!important}.rsb-download{background:#184eae;margin-top:14px}.rsb-download[hidden]{display:none}.rsb-footer{padding:24px;text-align:center;border-top:1px solid #dce6f8;color:#6b7894;font-size:.8rem}.rsb-footer a{color:#315dba}@keyframes rsb-bounce{50%{transform:translateY(-5px) rotate(8deg)}}@media(max-width:680px){.rsb-grid{grid-template-columns:1fr;gap:13px}.rsb-card{padding:20px}.rsb-back{margin-top:17px}.rsb-hero{padding:18px 0}.rsb-preview{min-height:230px}.rsb-head{padding-block:14px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;scroll-behavior:auto!important}}