:root{--iq-blue:#146ef5;--iq-ink:#102c4c;--iq-muted:#62758d;--iq-line:#dce7f3;--iq-soft:#f5f9fe;--iq-green:#137a4c}*{box-sizing:border-box}body{margin:0;background:#fff;color:var(--iq-ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Arial,sans-serif}.iq-calc-hero{padding:54px 22px 42px;background:linear-gradient(145deg,#f3f8ff,#fff);border-bottom:1px solid var(--iq-line)}.iq-calc-wrap{width:min(1040px,100%);margin:auto}.iq-kicker{color:var(--iq-blue);font-size:12px;font-weight:900;letter-spacing:.08em;text-transform:uppercase}.iq-calc-hero h1{margin:9px 0 12px;font-size:clamp(34px,5vw,52px);line-height:1.08}.iq-calc-hero p{max-width:760px;margin:0;color:var(--iq-muted);font-size:18px;line-height:1.65}.iq-calc-main{padding:34px 22px 70px}.iq-calc-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,.82fr);gap:22px;align-items:start}.iq-panel{border:1px solid var(--iq-line);border-radius:18px;padding:24px;background:#fff;box-shadow:0 10px 32px rgba(24,65,110,.07)}.iq-fields{display:grid;grid-template-columns:1fr 1fr;gap:15px}.iq-fields label{font-size:13px;font-weight:800;color:#294562}.iq-fields input,.iq-fields select{display:block;width:100%;margin-top:7px;border:1px solid #b9cce1;border-radius:10px;padding:12px;font:inherit;color:var(--iq-ink);background:#fff}.iq-calc-btn{width:100%;margin-top:18px;border:0;border-radius:10px;padding:13px 16px;background:var(--iq-blue);color:#fff;font:inherit;font-weight:850;cursor:pointer}.iq-result{min-height:260px;background:linear-gradient(145deg,#0d3767,#125599);color:#fff}.iq-result-label{color:#b8d8f8;font-size:12px;font-weight:850;text-transform:uppercase;letter-spacing:.07em}.iq-result-value{margin:12px 0 18px;font-size:clamp(36px,6vw,52px);font-weight:900}.iq-result-list{display:grid;gap:11px}.iq-result-row{display:flex;justify-content:space-between;gap:16px;padding-top:11px;border-top:1px solid rgba(255,255,255,.16)}.iq-result-row span{color:#d3e5f6}.iq-formula{margin-top:18px;padding:13px;border-radius:11px;background:rgba(255,255,255,.1);color:#e8f3fc;font-size:12px;line-height:1.55}.iq-content{max-width:820px;margin:44px auto 0}.iq-content h2{margin-top:34px;font-size:28px}.iq-content p,.iq-content li{color:#465e78;line-height:1.75}.iq-related{display:flex;gap:10px;flex-wrap:wrap;margin-top:25px}.iq-related a{padding:10px 13px;border:1px solid #bdd4ed;border-radius:9px;color:#145fc5;text-decoration:none;font-weight:800;font-size:13px}.iq-faq details{border-top:1px solid var(--iq-line);padding:15px 0}.iq-faq summary{cursor:pointer;font-weight:850}.iq-faq p{margin-bottom:0}.iq-note{margin-top:24px;color:#71839a;font-size:12px;line-height:1.6}@media(max-width:760px){.iq-calc-grid{grid-template-columns:1fr}.iq-fields{grid-template-columns:1fr}.iq-panel{padding:19px}.iq-calc-hero{padding-top:40px}}