.bc{--surface:#fff;--sunken:#eef1f5;--border:#e4e8ee;--border-strong:#cfd6e0;--text:#0f172a;--muted:#64748b;--faint:#95a0ad;--accent:#1266c9;--accent-soft:#e8f1fc;--accent-ring:#1266c929;--accent-glow:#1266c96b;--hint:#1266c973;--fs-1:11px;--fs-2:13px;--fs-3:16px;--fs-4:20px;--fs-5:21px;--fs-6:34px;--r-sm:9px;--r-md:13px;--shadow:0 1px 2px #0f172a0d,0 12px 30px -20px #0f172a59;--pad-page:clamp(12px,4vw,28px);--pad-card:clamp(10px,3vw,22px);--gap-col:clamp(8px,2vw,16px);-webkit-font-smoothing:antialiased;color:var(--text);color-scheme:light;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:var(--fs-3);line-height:1.5;padding-bottom:24px;text-align:left}[data-theme=dark] .bc{--surface:#24282e;--sunken:#1e2126;--border:#32383f;--border-strong:#454c55;--text:#e6edf3;--muted:#8b98a8;--faint:#6e7a88;--accent:#4f9df5;--accent-soft:#14283f;--accent-ring:#4f9df538;--accent-glow:#4f9df56b;--hint:#4f9df580;--shadow:0 1px 2px #0006,0 12px 30px -20px #000000e6;color-scheme:dark}.bc,.bc *,.bc :after,.bc :before{box-sizing:border-box}.bc-sr{border:0;clip-path:inset(50%);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;white-space:nowrap;width:1px}:where(.bc) :where(button,input,select){color:inherit;font:inherit}.bc :where(button,input,select):focus-visible{outline:2px solid var(--accent);outline-offset:2px}.bc-page{margin:0 auto;max-width:760px;padding:var(--pad-page) var(--pad-page) calc(var(--pad-page) + 24px)}.bc-card,.bc-view{grid-gap:clamp(14px,3vw,22px);display:grid;gap:clamp(14px,3vw,22px)}.bc-gchips{display:flex;gap:6px}.bc-gchip{--c:var(--gas);grid-gap:1px;background:var(--sunken);border:1px solid var(--border);border-radius:var(--r-sm);cursor:pointer;display:grid;flex:1 1;gap:1px;justify-items:center;min-width:0;padding:9px 6px 8px;transition:border-color .14s,background .14s,color .14s,transform .12s}[data-theme=dark] .bc-gchip{--c:var(--gas-dark)}.bc-gchip:hover{border-color:var(--c)}.bc-gchip:active{transform:scale(.97)}.bc-gchip__top{align-items:center;display:flex;gap:5px}.bc-gchip__dot{background:var(--c);border-radius:50%;box-shadow:inset 0 0 0 1px #0000002e;flex:none;height:9px;width:9px}.bc-gchip__formula{font-size:var(--fs-3);font-weight:700;letter-spacing:-.01em}.bc-gchip__name{color:var(--muted);font-size:var(--fs-1);line-height:1.25;white-space:nowrap}.bc-gchip--active{background:var(--c);border-color:var(--c);box-shadow:0 2px 10px -2px var(--c);color:var(--gas-ink)}.bc-gchip--active .bc-gchip__name{color:var(--gas-ink);opacity:.8}.bc-gchip--active .bc-gchip__dot{background:var(--gas-ink);box-shadow:none;opacity:.85}.bc-flow{grid-column-gap:var(--gap-col);grid-row-gap:10px;align-items:center;background:var(--surface);border:1px solid var(--border-strong);border-radius:var(--r-md);box-shadow:var(--shadow);column-gap:var(--gap-col);display:grid;grid-template-columns:auto minmax(44px,1fr) auto;grid-template-rows:auto auto;justify-items:center;padding:var(--pad-card);row-gap:10px}.bc-flow__cap{color:var(--faint);font-size:var(--fs-1);font-weight:600;grid-row:1;letter-spacing:.075em;text-transform:uppercase}.bc-flow__cap--left{grid-column:1}.bc-flow__cap--right{grid-column:3}.bc-flow__art{align-items:center;display:flex;flex-wrap:wrap;gap:6px;grid-row:2;justify-content:center;min-width:0}.bc-flow__art--left{grid-column:1}.bc-flow__art--right{grid-column:3}.bc-flow__stage{display:grid;flex:none;place-items:center;position:relative}.bc-gsf{aspect-ratio:120/150;width:clamp(140px,30vw,190px)}.bc-cyl,.bc-gsf{--c:var(--gas);height:auto}.bc-cyl{aspect-ratio:68/200;width:clamp(51px,12.7vw,80px)}[data-theme=dark] .bc-cyl,[data-theme=dark] .bc-gsf{--c:var(--gas-dark)}.bc-gsf__shell{fill:var(--sunken)}.bc-gsf__liquid{fill:var(--c)}.bc-gsf--nogas .bc-gsf__liquid{fill:var(--border-strong)}.bc-gsf__outline{fill:none;stroke:var(--border-strong);stroke-width:2.5}.bc-gsf__evap,.bc-gsf__metal{fill:var(--border-strong)}.bc-gsf__fin{fill:none;stroke:var(--surface);stroke-width:2;stroke-linecap:round;opacity:.75}.bc-gsf__pipe{fill:none;stroke:var(--border-strong);stroke-width:3.5;stroke-linecap:round;stroke-linejoin:round}.bc-cyl__paint{fill:var(--c)}.bc-cyl--nogas .bc-cyl__paint{fill:var(--border-strong)}.bc-cyl__shade{fill:#fff;opacity:.16}.bc-cyl__outline{fill:none;stroke:#00000040;stroke-width:2}.bc-cyl__formula{fill:var(--gas-ink);font-family:inherit;font-size:21px;font-weight:700;letter-spacing:-.5px}.bc-cyl--nogas .bc-cyl__formula{fill:var(--surface)}.bc-flow__countbox,.bc-flow__plate{align-items:center;background:var(--surface);border:1px solid var(--border-strong);border-radius:10px;box-shadow:0 1px 5px #0f172a40;display:flex;gap:6px;min-width:0;padding:6px 10px;transition:border-color .15s,box-shadow .15s}@media (hover:hover){.bc-flow__countbox:hover,.bc-flow__plate:hover{border-color:var(--accent);box-shadow:0 1px 5px #0f172a40,0 0 14px -4px var(--accent-glow)}}.bc-flow__countbox:focus-within,.bc-flow__plate:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-ring),0 0 18px -1px var(--accent-glow)}.bc-flow__plate{left:50%;max-width:101.6%;position:absolute;top:50%;transform:translate(-50%,-50%)}.bc-flow__count,.bc-flow__input{font-feature-settings:"tnum";--line:var(--hint);appearance:textfield;background:repeating-linear-gradient(to right,var(--line) 0 2px,#0000 2px 6px) 0 100% /100% 2px no-repeat;border:none;color:var(--text);font-size:var(--fs-4);font-variant-numeric:tabular-nums;font-weight:700;letter-spacing:-.02em;outline:none;padding:0}.bc-flow__count:focus,.bc-flow__input:focus{--line:var(--accent)}.bc-flow__count:disabled{background:none}.bc-flow__count::-webkit-inner-spin-button,.bc-flow__count::-webkit-outer-spin-button,.bc-flow__input::-webkit-inner-spin-button,.bc-flow__input::-webkit-outer-spin-button{appearance:none;margin:0}.bc-flow__input{flex:0 1 auto;min-width:0}.bc-flow__count{min-width:2ch;text-align:right}.bc-flow__count:disabled{color:var(--faint)}.bc-flow__countunit{color:var(--muted);display:inline-grid;font-size:var(--fs-2);font-weight:600;justify-items:start;white-space:nowrap}.bc-flow__countunit>*{grid-area:1/1}.bc-flow__countghost{visibility:hidden}.bc-flow__units{background:var(--sunken);border:1px solid var(--border);border-radius:8px;display:flex;flex:none;gap:1px;padding:2px}.bc-unit{background:none;border:none;border-radius:5px;color:var(--muted);cursor:pointer;font-size:var(--fs-2);font-weight:600;line-height:1;min-width:28px;padding:5px 6px;position:relative;transition:background .14s,color .14s}.bc-unit:after{content:"";inset:-8px 0;position:absolute}.bc-unit--active{background:var(--accent);color:#fff}.bc-flow__specs{grid-gap:6px;display:grid;gap:6px;justify-items:center;left:50%;position:absolute;top:63%;transform:translate(-50%,-50%)}.bc-spec{align-items:center;background:var(--surface);border:1px solid var(--border-strong);border-radius:999px;box-shadow:0 1px 4px #0f172a4d;color:var(--text);cursor:pointer;display:inline-flex;font-size:var(--fs-1);font-weight:700;gap:4px;min-height:32px;padding:4px 8px 4px 10px;transition:border-color .14s,color .14s;white-space:nowrap}.bc-spec__caret{color:var(--faint);flex:none;height:5px;width:8px}.bc-spec:hover{border-color:var(--accent);color:var(--accent)}.bc-spec--unset .bc-spec__caret,.bc-spec:hover .bc-spec__caret{color:currentColor}.bc-spec--unset{border-color:var(--accent);border-style:dashed;color:var(--muted)}.bc-flow__mult{align-items:center;display:flex;gap:8px;min-width:0}.bc-flow__times{color:var(--faint);display:flex;flex:none;font-size:var(--fs-5)}.bc-flow__times svg{fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;height:.5em;width:.5em}.bc-flow__link{align-items:center;color:var(--faint);display:flex;grid-column:2;grid-row:2;width:100%}.bc-flow__line{background:currentColor;border-radius:1px;flex:1 1;height:2px;min-width:8px}.bc-flow__head{flex:none;height:16px;margin-left:-1px;width:12px}.bc-flow__head--back{margin-left:0;margin-right:-1px}@media (min-width:560px){.bc{--fs-5:25px;--fs-6:40px}.bc-flow{row-gap:12px}.bc-cyl__formula{font-size:22px}}@media (max-width:479px){.bc-flow__art--right,.bc-flow__mult{flex-direction:column}.bc-flow__mult{gap:0}.bc-flow__times{margin-block:0 8px}}@media (max-height:520px) and (min-width:560px){.bc-page{padding-block:10px 26px}.bc-card,.bc-view{gap:12px}.bc-flow{padding-block:10px}}.bc-calc{min-width:0}.bc-calc__sum{align-items:baseline;border-radius:var(--r-md);cursor:pointer;display:flex;flex-wrap:wrap;gap:2px 10px;justify-content:center;list-style:none;padding:10px 12px}.bc-calc__sum::-webkit-details-marker{display:none}@media (hover:hover){.bc-calc__sum:hover .bc-calc__more{text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px}}.bc-calc__result{font-feature-settings:"tnum";color:var(--muted);display:flex;flex-wrap:wrap;font-size:var(--fs-3);font-variant-numeric:tabular-nums;gap:2px 8px;justify-content:center;text-align:center}.bc-calc__result i{color:var(--faint);font-style:normal}.bc-calc__more{color:var(--accent);font-size:var(--fs-2);font-weight:600;white-space:nowrap}.bc-calc__more:after{border-bottom:2px solid;border-radius:1px;border-right:2px solid;content:"";display:inline-block;height:6px;margin-left:8px;transform:translateY(-2px) rotate(45deg);transition:transform .15s;width:6px}.bc-calc[open] .bc-calc__more:after{transform:translateY(1px) rotate(-135deg)}.bc-calc__sum:focus-visible{outline:2px solid var(--accent);outline-offset:0}.bc-calc__body{grid-gap:18px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);display:grid;gap:18px;margin-top:8px;padding:var(--pad-card)}.bc-calc__block{grid-gap:8px;display:grid;gap:8px;min-width:0}.bc-calc__title{color:var(--text);font-size:var(--fs-2);font-weight:700;margin:0}.bc-calc__text{color:var(--muted);font-size:var(--fs-2);line-height:1.55;margin:0}.bc-calc__math,.bc-calc__text b{color:var(--text)}.bc-calc__math{-webkit-overflow-scrolling:touch;background:var(--sunken);border:1px solid var(--border);border-radius:var(--r-sm);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:var(--fs-1);line-height:1.7;margin:0;overflow-x:auto;padding:10px 12px}.bc-calc__facts{grid-gap:6px;display:grid;font-size:var(--fs-2);gap:6px;margin:0}.bc-calc__facts>div{align-items:baseline;display:flex;flex-wrap:wrap;gap:4px 10px}.bc-calc__facts dt{color:var(--muted);flex:1 1 auto;min-width:0}.bc-calc__facts dd{font-feature-settings:"tnum";color:var(--text);font-variant-numeric:tabular-nums;font-weight:600;margin:0 0 0 auto;white-space:nowrap}.bc-calc__list{grid-gap:8px;color:var(--muted);display:grid;font-size:var(--fs-2);gap:8px;line-height:1.55;margin:0;padding-left:18px}@media (min-width:720px){.bc-calc__body{column-count:2;column-gap:28px;display:block}.bc-calc__block{break-inside:avoid;margin-bottom:18px;page-break-inside:avoid}.bc-calc__block:last-child{margin-bottom:0}}body,html{height:100%;width:100%}input::-ms-clear,input::-ms-reveal{display:none}*,:after,:before{box-sizing:border-box}html{-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%;-ms-overflow-style:scrollbar;-webkit-tap-highlight-color:rgba(0,0,0,0);font-family:sans-serif;line-height:1.15}body{margin:0}[tabindex="-1"]:focus{outline:none}hr{box-sizing:initial;height:0;overflow:visible}h1,h2,h3,h4,h5,h6{font-weight:500;margin-bottom:.5em;margin-top:0}p{margin-bottom:1em;margin-top:0}abbr[data-original-title],abbr[title]{border-bottom:0;cursor:help;-webkit-text-decoration:underline dotted;text-decoration:underline dotted}address{font-style:normal;line-height:inherit;margin-bottom:1em}input[type=number],input[type=password],input[type=text],textarea{-webkit-appearance:none}dl,ol,ul{margin-bottom:1em;margin-top:0}ol ol,ol ul,ul ol,ul ul{margin-bottom:0}dt{font-weight:500}dd{margin-bottom:.5em;margin-left:0}blockquote{margin:0 0 1em}dfn{font-style:italic}b,strong{font-weight:bolder}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:initial}sub{bottom:-.25em}sup{top:-.5em}code,kbd,pre,samp{font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,Courier,monospace;font-size:1em}pre{margin-bottom:1em;margin-top:0;overflow:auto}figure{margin:0 0 1em}img{border-style:none;vertical-align:middle}[role=button],a,area,button,input:not([type=range]),label,select,summary,textarea{touch-action:manipulation}table{border-collapse:collapse}caption{caption-side:bottom;padding-bottom:.3em;padding-top:.75em;text-align:left}button,input,optgroup,select,textarea{color:inherit;font-family:inherit;font-size:inherit;line-height:inherit;margin:0}button,input{overflow:visible}button,select{text-transform:none}[type=reset],[type=submit],button,html [type=button]{-webkit-appearance:button}[type=button]::-moz-focus-inner,[type=reset]::-moz-focus-inner,[type=submit]::-moz-focus-inner,button::-moz-focus-inner{border-style:none;padding:0}input[type=checkbox],input[type=radio]{box-sizing:border-box;padding:0}input[type=date],input[type=datetime-local],input[type=month],input[type=time]{-webkit-appearance:listbox}textarea{overflow:auto;resize:vertical}fieldset{border:0;margin:0;min-width:0;padding:0}legend{color:inherit;display:block;font-size:1.5em;line-height:inherit;margin-bottom:.5em;max-width:100%;padding:0;white-space:normal;width:100%}progress{vertical-align:initial}[type=number]::-webkit-inner-spin-button,[type=number]::-webkit-outer-spin-button{height:auto}[type=search]{-webkit-appearance:none;outline-offset:-2px}[type=search]::-webkit-search-cancel-button,[type=search]::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}output{display:inline-block}summary{display:list-item}template{display:none}[hidden]{display:none!important}mark{background-color:#feffe6;padding:.2em}
/*# sourceMappingURL=main.d08b2997.css.map*/