:root{color-scheme:light;--ink:#0f172a;--muted:#475569;--line:#dbe4ef;--soft:#f8fafc;--brand:#0f766e;--brand2:#2563eb;--warn:#f59e0b;}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:linear-gradient(180deg,#eef7ff 0,#f8fafc 35%,#fff 100%);color:var(--ink)}.hero{padding:52px 20px 34px;text-align:center;background:radial-gradient(circle at top left,rgba(20,184,166,.25),transparent 32%),linear-gradient(135deg,#0f172a,#164e63);color:#fff}.hero h1{max-width:980px;margin:10px auto;font-size:clamp(2.1rem,5vw,4.7rem);line-height:.98}.lead{max-width:780px;margin:0 auto 20px;font-size:1.15rem;color:#dff7ff}.eyebrow{margin:0 0 8px;text-transform:uppercase;letter-spacing:.16em;font-size:.78rem;font-weight:900;color:#0f766e}.hero .eyebrow{color:#99f6e4}.lang{display:inline-flex;border:1px solid rgba(255,255,255,.35);color:#fff;text-decoration:none;font-weight:800;border-radius:999px;padding:10px 14px;background:rgba(255,255,255,.1)}main{max-width:1120px;margin:0 auto;padding:26px 18px 58px}.promo{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,480px);gap:20px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:26px;padding:22px;margin-bottom:22px;box-shadow:0 18px 44px rgba(15,23,42,.08)}.promo h2{margin:.1rem 0 .6rem;font-size:1.7rem}.promo p:not(.eyebrow){color:var(--muted);line-height:1.65}.video-wrap{position:relative;aspect-ratio:16/9;border-radius:20px;overflow:hidden;background:#020617}.video-wrap iframe{position:absolute;inset:0;width:100%;height:100%;border:0}.tool{display:grid;grid-template-columns:1fr 1fr;gap:18px}.panel,.result{background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:0 14px 34px rgba(15,23,42,.06)}.panel h2{margin-top:0}label{display:grid;gap:8px;margin:14px 0;font-weight:800}input,textarea,select{width:100%;border:1px solid #cbd5e1;border-radius:16px;padding:12px 13px;font:inherit;color:var(--ink);background:#fff}textarea{min-height:118px;resize:vertical}button{border:0;border-radius:999px;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;padding:12px 18px;font-weight:900;font:inherit;cursor:pointer;box-shadow:0 10px 24px rgba(15,118,110,.18)}.result{margin-top:20px}.result-head{display:flex;justify-content:space-between;gap:14px;align-items:center}.result h2{margin:.1rem 0 0;font-size:1.8rem}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:18px}.grid article{background:var(--soft);border:1px solid var(--line);border-radius:18px;padding:18px}.grid h3{margin-top:0}li{margin:.48rem 0;line-height:1.45}pre{white-space:pre-wrap;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:#0f172a;color:#e2e8f0;padding:14px;border-radius:14px;overflow:auto}footer{text-align:center;padding:28px;color:var(--muted)}@media(max-width:820px){.promo,.tool,.grid{grid-template-columns:1fr}.result-head{display:block}.result-head button{margin-top:12px}}