:root{--ink:#14233A;--soft:#5B6675;--paper:#F5F7FA;--surface:#fff;--line:#E3E7EC;--line2:#CBD3DC;
--brand:#1E5FBF;--brand2:#184E9C;--navy:#14233A;--tint:#E9F1FC;--ok:#1F8A52;--warn:#B8842B;
--disp:"Space Grotesk",system-ui,Segoe UI,Roboto,sans-serif;--mono:"IBM Plex Mono",monospace}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,system-ui,Segoe UI,Roboto,sans-serif;line-height:1.55;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:inherit}.wrap{max-width:1100px;margin:0 auto;padding:0 22px}
header.site{position:sticky;top:0;z-index:20;background:rgba(18,32,54,.97);backdrop-filter:blur(8px)}
.bar{display:flex;align-items:center;gap:18px;height:62px}
.brand{display:flex;align-items:center;gap:9px;font-family:var(--disp);font-weight:700;font-size:20px;color:#fff;text-decoration:none}
.brand .mark{width:20px;height:20px;border-radius:5px;background:linear-gradient(135deg,var(--brand),#4d84d8)}
.nav{display:flex;gap:15px;margin-left:auto;flex-wrap:wrap}.nav a{color:rgba(255,255,255,.85);text-decoration:none;font-size:14.5px;font-weight:500}.nav a:hover{color:#fff}
.langsw{display:flex;gap:2px;background:rgba(255,255,255,.1);border-radius:999px;padding:3px}
.langsw a{color:rgba(255,255,255,.75);text-decoration:none;font-size:12px;font-weight:600;padding:4px 8px;border-radius:999px}.langsw a.cur{background:#fff;color:var(--navy)}
main{min-height:50vh}.sec{padding:32px 0}.hero{padding:52px 22px 16px}
.eyebrow{color:var(--brand2);font-weight:600;font-size:13px;letter-spacing:.05em;text-transform:uppercase;margin:0 0 8px}
h1{font-family:var(--disp);font-weight:600;letter-spacing:-.02em;font-size:clamp(28px,4.4vw,44px);line-height:1.06;margin:0 0 12px}
h2{font-family:var(--disp);font-weight:600;font-size:22px;margin:28px 0 14px}h3{font-family:var(--disp);font-weight:600;font-size:16px;margin:0 0 5px}
.lead{font-size:18px;color:var(--soft);max-width:66ch;margin:0 0 16px}.sub{color:var(--soft);margin:-6px 0 16px}.muted{color:var(--soft)}
.herobtns,.cta-actions{display:flex;gap:10px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--disp);font-weight:600;font-size:15px;text-decoration:none;border-radius:10px;padding:12px 20px;cursor:pointer;border:0}
.btn-primary{background:var(--brand);color:#fff}.btn-primary:hover{background:var(--brand2)}
.btn-out{background:#fff;color:var(--brand2);border:1px solid var(--line2)}.btn-light{background:#fff;color:var(--brand2)}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.4)}
.pgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.pcard{display:flex;flex-direction:column;gap:10px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px;text-decoration:none;color:inherit}
.pcard:hover{border-color:var(--brand)}.pcard span{font-family:var(--disp);font-weight:600;font-size:14px}
.illu{width:46px;height:46px;border-radius:10px;background:var(--tint);display:grid;place-items:center;color:var(--brand2)}.illu svg{width:24px;height:24px}.illu.big{width:80px;height:80px}.illu.big svg{width:40px;height:40px}
.phero{display:flex;gap:20px;align-items:center;flex-wrap:wrap}.phero>div{flex:1;min-width:260px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.mini{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:18px}.mini p{margin:0;color:var(--soft);font-size:14px}
.links{display:flex;flex-wrap:wrap;gap:8px;margin:6px 0}.links a{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:7px 11px;font-size:13.5px;text-decoration:none}
.links a:hover{border-color:var(--brand);color:var(--brand2)}.rh{margin-top:16px}
.chips{display:flex;flex-wrap:wrap;gap:8px}.pchip{background:var(--tint);border:1px solid #cfe0f6;color:var(--brand2);border-radius:999px;padding:7px 13px;font-size:13.5px;font-weight:600;text-decoration:none}
.crumbs{font-size:13px;color:var(--soft);margin-bottom:10px}.crumbs a{color:var(--soft);text-decoration:none}
details.qa{background:var(--surface);border:1px solid var(--line);border-radius:10px;margin-bottom:9px}
details.qa summary{cursor:pointer;padding:14px 16px;font-weight:600;font-size:15px;list-style:none}details.qa summary::-webkit-details-marker{display:none}details.qa .a{padding:0 16px 15px;color:var(--soft);font-size:14px}
.gcards{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.gcard{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:18px;text-decoration:none;color:inherit}.gcard:hover{border-color:var(--brand)}.gcard h3{margin:0}
.article p{max-width:72ch}
.calc{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px;box-shadow:0 12px 30px -16px rgba(20,35,58,.2);max-width:680px}
.calc-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.lbl{display:block;font-size:13px;font-weight:600;margin-bottom:6px}
.inp{width:100%;border:1px solid var(--line2);border-radius:9px;padding:11px 12px;font:inherit;font-size:15px;background:#fff}
.inp:focus{outline:0;border-color:var(--brand);box-shadow:0 0 0 3px var(--tint)}
.inrow{display:flex;align-items:stretch;border:1px solid var(--line2);border-radius:9px;overflow:hidden}.inrow .inp{border:0;border-radius:0}.inrow .su{display:flex;align-items:center;padding:0 12px;background:#f1f5f9;font-family:var(--mono);font-size:13px;color:var(--soft)}
.cz-opts{margin:14px 0;display:flex;flex-wrap:wrap;gap:10px 16px;align-items:center}
.cz-chk{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--ink)}.cz-chk input{width:16px;height:16px}
.cz-adv{margin:6px 0 12px}.cz-adv summary{cursor:pointer;font-size:13px;font-weight:600;color:var(--brand2)}
.cz-out{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;background:var(--tint);border:1px solid #cfe0f6;border-radius:10px;padding:14px 16px;margin-top:6px}
.cz-k{font-size:13px;font-weight:600;color:var(--brand2);display:block}.cz-v{font-family:var(--mono);font-weight:600;font-size:24px;color:var(--navy)}.cz-v small{font-size:14px;color:var(--soft)}
.cz-vol{font-size:13px;color:var(--soft)}.cz-vol b{font-family:var(--mono);color:var(--ink)}
.cz-note{font-size:11.5px;color:var(--soft);margin:10px 0 14px}
.cta{margin:30px 22px;max-width:1100px;margin-left:auto;margin-right:auto;background:linear-gradient(120deg,var(--navy),#22427a);border-radius:14px;padding:30px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.cta h2{color:#fff;margin:0 0 6px}.cta p{color:rgba(255,255,255,.85);margin:0;max-width:48ch}
.contact{list-style:none;padding:0;font-size:17px;display:flex;flex-direction:column;gap:8px}.contact a{color:var(--brand2);text-decoration:none;font-weight:600}
footer.site{margin-top:40px;background:#0f1c30;color:#c4d0e0}
.footgrid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:24px;padding:34px 22px}
.fbrand{font-family:var(--disp);font-weight:700;font-size:19px;color:#fff;margin-bottom:8px}.fabout{font-size:13.5px;color:#9fb0c6;max-width:46ch}.fcontact{font-size:14px}.fcontact a{color:#fff;text-decoration:none}
footer h4{font-family:var(--disp);font-size:14px;color:#fff;margin:0 0 8px}footer ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:6px}footer ul a{color:#c4d0e0;text-decoration:none;font-size:14px}
.fbar{border-top:1px solid rgba(255,255,255,.12);padding:16px 22px;font-size:12.5px;color:#8497b0}
.langpick{padding:80px 22px;text-align:center}.langpick .links{justify-content:center;margin-top:20px}
@media(max-width:840px){.pgrid{grid-template-columns:1fr 1fr}.grid3{grid-template-columns:1fr}.gcards{grid-template-columns:1fr}.footgrid{grid-template-columns:1fr}.nav{display:none}.calc-grid{grid-template-columns:1fr}}