/* Start custom CSS for html, class: .elementor-element-f2533ce */.em-circulator{--a:#267bb5;--a2:#15547e;--text:#182333;--muted:#687487;--line:#dfe5eb;--soft:#f3f8fb;--green:#17765a;max-width:1120px;margin:auto;color:var(--text);font:17px/1.72 "Onest",system-ui,-apple-system,"Segoe UI",sans-serif}.em-circulator *{box-sizing:border-box}.em-circulator p{margin:0 0 1.1em}.em-circulator h2{font-size:clamp(28px,3vw,39px);line-height:1.16;letter-spacing:-.028em;margin:2em 0 .65em}.em-circulator h3{font-size:21px;line-height:1.3;margin:1.2em 0 .45em}.em-circulator a{color:#285fbd}.em-circulator__hero{padding:clamp(26px,5vw,56px);border:1px solid var(--line);border-radius:28px;background:radial-gradient(circle at 94% 5%,rgba(38,123,181,.16),transparent 34%),linear-gradient(135deg,#f2f9fd,#fff 62%,#f5faf8)}.em-circulator__eyebrow{font-size:13px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--a2);margin-bottom:14px}.em-circulator__hero h1{font-size:clamp(35px,5vw,58px);line-height:1.04;letter-spacing:-.045em;margin:0 0 21px;max-width:1040px}.em-circulator__lead{font-size:clamp(18px,2vw,21px);color:#3e4a5e}.em-circulator__chips{display:flex;flex-wrap:wrap;gap:8px;margin:23px 0}.em-circulator__chips span{padding:7px 11px;background:#fff;border:1px solid var(--line);border-radius:999px;font-size:14px;font-weight:700}.em-circulator__summary{padding:18px 20px;border-left:4px solid var(--a);background:rgba(255,255,255,.84);border-radius:0 14px 14px 0}.em-circulator__toc{margin:26px 0;padding:23px 27px;background:var(--soft);border:1px solid var(--line);border-radius:18px}.em-circulator__toc ol{columns:2;padding-left:22px}.em-circulator__toc li{break-inside:avoid;margin:6px 0}.em-circulator__diagram{display:grid;grid-template-columns:1fr auto 1fr auto 1fr auto 1fr;gap:10px;align-items:center;margin:24px 0}.em-circulator__diagram div{padding:18px 12px;text-align:center;border:1px solid var(--line);border-radius:15px}.em-circulator__diagram strong,.em-circulator__diagram small{display:block}.em-circulator__diagram small{color:var(--muted);margin-top:4px}.em-circulator__check li{margin:7px 0}.em-circulator__check li::marker{color:var(--green)}.em-circulator__note,.em-circulator__warning,.em-circulator__tip,.em-circulator__danger{padding:18px 20px;border-radius:14px;margin:20px 0}.em-circulator__note{background:#eef5fa;border:1px solid #d2e1ec}.em-circulator__warning{background:#fff3ea;border:1px solid #efd1bd}.em-circulator__tip{background:#edf8f3;border:1px solid #cce7da}.em-circulator__danger{background:#fff0f0;border:1px solid #efc4c4}.em-circulator__formula,.em-circulator__calc{font-size:clamp(22px,3vw,31px);font-weight:800;text-align:center;padding:24px;border:1px solid var(--line);border-radius:16px;background:#f7f9fb;margin:22px 0}.em-circulator__calc{font-size:clamp(18px,2.3vw,25px);background:#f1f8f5}.em-circulator table{width:100%;border-collapse:separate;border-spacing:0;border:1px solid var(--line);border-radius:15px;overflow:hidden;margin:22px 0}.em-circulator th,.em-circulator td{padding:13px 15px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}.em-circulator th{background:#eef5fa}.em-circulator tr:last-child td{border-bottom:0}.em-circulator__related{padding:16px 18px;border-left:3px solid var(--a);background:var(--soft);border-radius:0 12px 12px 0}.em-circulator__head-chain{display:grid;grid-template-columns:repeat(9,auto);gap:8px;align-items:center;margin:24px 0}.em-circulator__head-chain>div{padding:16px;text-align:center;border:1px solid var(--line);border-radius:14px}.em-circulator__head-chain strong,.em-circulator__head-chain small{display:block}.em-circulator__head-chain small{color:var(--muted)}.em-circulator__head-chain>span{font-weight:800;color:var(--a)}.em-circulator__conversion{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:22px 0}.em-circulator__conversion>div{padding:20px;text-align:center;border:1px solid var(--line);border-radius:15px}.em-circulator__conversion strong,.em-circulator__conversion span{display:block}.em-circulator__conversion strong{font-size:20px}.em-circulator__conversion span{color:var(--muted)}.em-circulator__height,.em-circulator__trv-flow,.em-circulator__zones{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;gap:12px;align-items:center;margin:24px 0}.em-circulator__height>div,.em-circulator__trv-flow>div,.em-circulator__zones>div{padding:19px;text-align:center;border:1px solid var(--line);border-radius:15px}.em-circulator__height strong,.em-circulator__height small,.em-circulator__trv-flow strong,.em-circulator__trv-flow small,.em-circulator__zones strong,.em-circulator__zones span{display:block}.em-circulator__height small,.em-circulator__trv-flow small,.em-circulator__zones span{color:var(--muted)}.em-circulator__curve{display:grid;grid-template-columns:auto 1fr;grid-template-rows:1fr auto;gap:8px;margin:24px 0}.em-circulator__axis-y{display:flex;flex-direction:column;justify-content:center;align-items:center;min-width:70px}.em-circulator__axis-y span{font-size:25px;font-weight:800}.em-circulator__axis-y small{color:var(--muted)}.em-circulator__plot{position:relative;min-height:280px;border-left:2px solid #657083;border-bottom:2px solid #657083;background:linear-gradient(0deg,rgba(38,123,181,.04),rgba(38,123,181,0))}.em-circulator__pump-curve{position:absolute;top:25px;left:16%;width:65%;height:150px;border-top:4px solid var(--a);border-radius:60% 40% 0 0;transform:rotate(8deg);padding-top:7px;text-align:center;font-size:13px;color:var(--a2)}.em-circulator__system-curve{position:absolute;bottom:18px;left:12%;width:68%;height:180px;border-bottom:4px solid #a24a37;border-radius:0 0 70% 20%;transform:rotate(-18deg);text-align:right;font-size:13px;color:#873a2c}.em-circulator__point{position:absolute;left:54%;top:45%;font-size:23px;color:#172334}.em-circulator__point span{display:block;font-size:13px;white-space:nowrap}.em-circulator__axis-x{grid-column:2;text-align:right;font-weight:700}.em-circulator__pump-name{display:flex;justify-content:center;align-items:center;gap:15px;margin:25px 0}.em-circulator__pump-name span{font-size:44px;font-weight:800;padding:12px 22px;border:1px solid var(--line);border-radius:15px}.em-circulator__pump-name i{font-style:normal;font-size:30px}.em-circulator__two{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:22px 0}.em-circulator__two>div{padding:20px;border:1px solid var(--line);border-radius:15px}.em-circulator__two h3{margin:0 0 5px}.em-circulator__two p{margin:0}.em-circulator__modes{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:22px 0}.em-circulator__modes>div{padding:18px;border:1px solid var(--line);border-radius:15px}.em-circulator__modes span,.em-circulator__modes strong{display:block}.em-circulator__modes span{font-weight:800;color:var(--a2)}.em-circulator__modes strong{margin:3px 0}.em-circulator__modes p{margin:0;color:#4b576a}.em-circulator__floor{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:22px 0}.em-circulator__floor>div{padding:18px;text-align:center;border:1px solid var(--line);border-radius:15px}.em-circulator__floor strong,.em-circulator__floor small{display:block}.em-circulator__floor small{color:var(--muted)}.em-circulator__speeds{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:22px 0}.em-circulator__speeds>div{padding:20px;text-align:center;border:1px solid var(--line);border-radius:15px}.em-circulator__speeds span,.em-circulator__speeds strong,.em-circulator__speeds small{display:block}.em-circulator__speeds span{font-size:28px;font-weight:800;color:var(--a)}.em-circulator__speeds small{color:var(--muted)}.em-circulator__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:22px 0}.em-circulator__grid>div{padding:18px;border:1px solid var(--line);border-radius:15px}.em-circulator__grid h3{margin:0 0 5px}.em-circulator__grid p{margin:0;color:#4b576a}.em-circulator__steps{list-style:none;padding:0}.em-circulator__steps li{display:grid;grid-template-columns:44px 1fr;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}.em-circulator__steps span{display:flex;width:38px;height:38px;align-items:center;justify-content:center;border-radius:11px;background:var(--a);color:#fff;font-weight:800}.em-circulator__steps h3{margin:0 0 4px}.em-circulator__steps p{margin:0}.em-circulator__norms{padding:clamp(22px,4vw,35px);background:#f6f8fa;border-radius:20px;margin-top:35px}.em-circulator__norms h2{margin-top:0}.em-circulator__mistakes{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:22px 0}.em-circulator__mistakes>div{padding:18px;border:1px solid var(--line);border-radius:15px}.em-circulator__mistakes h3{margin:0 0 5px}.em-circulator__mistakes p{margin:0;color:#4b576a}.em-circulator__faq details{border:1px solid var(--line);border-radius:13px;margin:9px 0;padding:0 17px}.em-circulator__faq summary{cursor:pointer;font-weight:750;padding:16px 0}.em-circulator__faq details p{padding-bottom:16px;margin:0}.em-circulator__final{margin-top:40px;padding:clamp(24px,4vw,38px);background:#182333;color:#fff;border-radius:21px}.em-circulator__final h2{color:#fff;margin-top:0}.em-circulator__final p:last-child{margin-bottom:0}@media(max-width:980px){.em-circulator__head-chain{grid-template-columns:1fr 1fr}.em-circulator__head-chain>span{text-align:center}.em-circulator__modes{grid-template-columns:1fr 1fr}.em-circulator__toc ol{columns:1}}@media(max-width:700px){.em-circulator{font-size:16px}.em-circulator__hero{padding:24px 19px}.em-circulator__hero h1{font-size:34px}.em-circulator__diagram,.em-circulator__height,.em-circulator__trv-flow,.em-circulator__zones{grid-template-columns:1fr}.em-circulator__diagram i,.em-circulator__height i,.em-circulator__trv-flow i,.em-circulator__zones i{text-align:center;transform:rotate(90deg)}.em-circulator__conversion,.em-circulator__two,.em-circulator__modes,.em-circulator__floor,.em-circulator__speeds,.em-circulator__grid,.em-circulator__mistakes{grid-template-columns:1fr}.em-circulator__head-chain{grid-template-columns:1fr}.em-circulator table{font-size:14px}.em-circulator__plot{min-height:230px}}/* End custom CSS */