.blog-wrapper{overflow-x:clip}.formula-page-shell{--fv-arg-1:#1d4ed8;--fv-arg-1-soft:#dbeafe;--fv-arg-2:#b45309;--fv-arg-2-soft:#ffedd5;--fv-arg-3:#7e22ce;--fv-arg-3-soft:#f3e8ff;--fv-arg-4:#047857;--fv-arg-4-soft:#d1fae5;--fv-arg-5:#be185d;--fv-arg-5-soft:#fce7f3;--fv-result:#047857;--fv-result-soft:#dcfce7;width:min(100%,1280px);margin:0 auto;padding:24px clamp(16px,3vw,40px) 72px}[data-theme=dark] .formula-page-shell{--fv-arg-1:#93c5fd;--fv-arg-1-soft:#172554;--fv-arg-2:#fdba74;--fv-arg-2-soft:#431f0b;--fv-arg-3:#d8b4fe;--fv-arg-3-soft:#3b1757;--fv-arg-4:#6ee7b7;--fv-arg-4-soft:#073d2e;--fv-arg-5:#f9a8d4;--fv-arg-5-soft:#500f30;--fv-result:#6ee7b7;--fv-result-soft:#064e3b}.argument-tone-1{--argument-color:var(--fv-arg-1);--argument-soft:var(--fv-arg-1-soft)}.argument-tone-2{--argument-color:var(--fv-arg-2);--argument-soft:var(--fv-arg-2-soft)}.argument-tone-3{--argument-color:var(--fv-arg-3);--argument-soft:var(--fv-arg-3-soft)}.argument-tone-4{--argument-color:var(--fv-arg-4);--argument-soft:var(--fv-arg-4-soft)}.argument-tone-5{--argument-color:var(--fv-arg-5);--argument-soft:var(--fv-arg-5-soft)}.formula-visually-hidden{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.formula-page-shell :focus-visible{outline:3px solid var(--primary);outline-offset:3px}.formula-breadcrumb{min-width:0;color:var(--text-muted);flex-wrap:wrap;align-items:center;gap:6px;margin-bottom:12px;font-size:.8125rem;display:flex}.formula-breadcrumb a{color:var(--text-muted);text-underline-offset:3px;text-decoration:underline #0000}.formula-breadcrumb a:hover{color:var(--link);text-decoration-color:currentColor}.formula-breadcrumb__separator{color:var(--text-xs)}.formula-series-nav{border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow-sm);border-radius:12px;justify-content:space-between;align-items:center;gap:24px;margin-bottom:20px;padding:9px 12px;display:flex}.formula-series-nav__home{color:var(--heading);white-space:nowrap;align-items:center;gap:9px;font-size:.875rem;font-weight:700;display:inline-flex}.formula-series-nav__home:hover{color:var(--primary-dark)}.formula-series-nav__mark,.formula-function-card__mark{background:linear-gradient(135deg, var(--primary), var(--primary-dark));color:#fff;border-radius:9px;place-items:center;width:34px;height:34px;font-family:Georgia,Times New Roman,serif;font-size:.875rem;font-style:italic;font-weight:700;line-height:1;display:inline-grid}.formula-series-nav__mark{border-radius:8px;width:32px;height:32px}.formula-series-nav p{color:var(--text-muted);text-align:right;font-size:.8125rem;line-height:1.5}.formula-section-heading{margin-bottom:22px}.formula-section-heading--compact{margin-bottom:14px}.formula-section-heading__eyebrow{color:#006970;letter-spacing:.12em;text-transform:uppercase;margin-bottom:4px;font-size:.6875rem;font-weight:800;line-height:1.4}[data-theme=dark] .formula-section-heading__eyebrow{color:#5eead4}.formula-section-heading h2,.formula-section-heading h3,.formula-definition h2,.formula-info-card h2,.formula-plain-language h3{color:var(--heading);letter-spacing:-.025em;font-weight:800;line-height:1.3}.formula-section-heading h2{font-size:clamp(1.45rem,3vw,1.8rem)}.formula-section-heading h3,.formula-plain-language h3{font-size:1.2rem}.formula-section-heading>p:last-child:not(.formula-section-heading__eyebrow){color:var(--text-muted);margin-top:5px;font-size:.9rem;line-height:1.65}.formula-home-hero{border:1px solid var(--border);background:radial-gradient(circle at 90% 10%, #00adb533, transparent 36%), linear-gradient(135deg, var(--surface) 0%, var(--surface-2) 100%);min-height:310px;box-shadow:var(--shadow-md);border-radius:24px;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:clamp(28px,6vw,80px);margin-bottom:64px;padding:clamp(34px,6vw,70px);display:grid;overflow:hidden}.formula-home-hero__eyebrow,.formula-function-hero__eyebrow{color:#006970;letter-spacing:.12em;text-transform:uppercase;margin-bottom:8px;font-size:.75rem;font-weight:800}[data-theme=dark] .formula-home-hero__eyebrow,[data-theme=dark] .formula-function-hero__eyebrow{color:#5eead4}.formula-home-hero h1{color:var(--heading);letter-spacing:-.045em;font-size:clamp(2rem,5vw,3.5rem);font-weight:850;line-height:1.15}.formula-home-hero__lead{max-width:660px;color:var(--text-muted);margin-top:18px;font-size:clamp(1rem,2vw,1.125rem);line-height:1.8}.formula-home-hero__visual{flex-direction:column;align-items:stretch;gap:8px;width:190px;display:flex}.formula-home-hero__visual>span:not(.formula-home-hero__arrow){border:1px solid var(--border);background:var(--surface);color:var(--heading);box-shadow:var(--shadow-sm);border-radius:11px;align-items:center;gap:10px;padding:12px 14px;font-size:.875rem;font-weight:700;display:flex}.formula-home-hero__visual b{background:var(--primary-light);width:24px;height:24px;color:var(--primary-dark);border-radius:50%;place-items:center;font-size:.75rem;display:inline-grid}[data-theme=dark] .formula-home-hero__visual b{color:#5eead4}.formula-home-hero__arrow{color:var(--primary);text-align:center;font-weight:800;line-height:1;transform:rotate(90deg)}.formula-catalog{margin-bottom:12px}.formula-catalog__grid,.formula-related__grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;display:grid}.formula-function-card{border:1px solid var(--border);background:var(--surface);min-width:0;min-height:260px;color:var(--text);box-shadow:var(--shadow);border-radius:16px;flex-direction:column;padding:24px;transition:transform .18s,border-color .18s,box-shadow .18s;display:flex}.formula-function-card:hover{border-color:var(--primary);color:var(--text);box-shadow:var(--shadow-md);transform:translateY(-3px)}.formula-function-card__heading{align-items:center;gap:12px;margin-bottom:18px;display:flex}.formula-function-card__name{color:var(--heading);letter-spacing:-.02em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:1.15rem;font-weight:800;line-height:1.3}.formula-function-card__category{color:var(--text-muted);font-size:.75rem}.formula-function-card__summary{color:var(--text-muted);margin-bottom:18px;font-size:.9rem;line-height:1.7}.formula-function-card__meta{flex-wrap:wrap;gap:6px;margin-top:auto;display:flex}.formula-function-card__meta span{border:1px solid var(--border);background:var(--surface-2);color:var(--text-muted);border-radius:999px;padding:4px 8px;font-size:.6875rem;line-height:1.3}.formula-function-card__link{border-top:1px solid var(--border);color:var(--link);justify-content:space-between;align-items:center;margin-top:20px;padding-top:14px;font-size:.85rem;font-weight:700;display:flex}.formula-catalog__empty{border:1px dashed var(--border);color:var(--text-muted);text-align:center;border-radius:12px;padding:28px}.formula-function-page{min-width:0}.formula-function-hero{border:1px solid var(--border);background:radial-gradient(circle at 90% 10%, #00adb52b, transparent 34%), var(--surface);box-shadow:var(--shadow);border-radius:20px;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:24px;margin-bottom:18px;padding:clamp(22px,3vw,34px);display:grid}.formula-function-hero h1{color:var(--heading);letter-spacing:-.04em;font-size:clamp(1.8rem,4vw,2.75rem);font-weight:850;line-height:1.2}.formula-function-hero h1 span{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.formula-function-hero__lead{max-width:760px;color:var(--text-muted);margin-top:10px;font-size:1rem;line-height:1.7}.formula-function-hero__mark{aspect-ratio:1;background:var(--primary-light);width:clamp(76px,8vw,92px);color:var(--primary-dark);border:1px solid #00adb54d;border-radius:22px;place-items:center;font-family:Georgia,Times New Roman,serif;font-size:clamp(1.85rem,4vw,2.8rem);font-style:italic;font-weight:700;display:grid;box-shadow:inset 0 0 0 8px #ffffff38}[data-theme=dark] .formula-function-hero__mark{color:#5eead4}.formula-definition{border:1px solid var(--border);background:var(--surface);border-radius:16px;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:clamp(24px,4vw,48px);margin-bottom:18px;padding:16px 20px;display:grid}.formula-definition h2{white-space:nowrap;font-size:1.25rem}.formula-definition__flow{grid-template-columns:1fr auto 1fr auto 1fr;align-items:center;gap:12px;min-width:0;display:grid}.formula-definition__flow>span:not([aria-hidden]){border:1px solid var(--border);background:var(--surface-2);color:var(--text-muted);text-align:center;border-radius:10px;padding:9px 8px;font-size:.825rem;line-height:1.45}.formula-definition__flow b{color:var(--heading)}.formula-definition__flow>span[aria-hidden]{color:var(--primary);font-weight:800}.formula-visualizer{border:1px solid var(--border);background:var(--surface-2);border-radius:20px;min-width:0;margin-bottom:36px;padding:clamp(18px,3vw,34px)}.formula-visualizer__example-heading{align-items:center;gap:12px;margin-bottom:14px;display:flex}.formula-visualizer__example-heading>span{background:var(--primary);color:#fff;border-radius:7px;flex:none;padding:5px 9px;font-size:.6875rem;font-weight:800}.formula-visualizer__example-heading h2{color:var(--heading);letter-spacing:-.025em;font-size:clamp(1.25rem,3vw,1.6rem);font-weight:800;line-height:1.35}.formula-expression,.formula-argument-guide,.formula-sheet,.formula-walkthrough{border:1px solid var(--border);background:var(--surface);border-radius:16px;min-width:0}.formula-expression{margin-bottom:22px;padding:clamp(18px,3vw,28px)}.formula-expression__scroll{border:1px solid var(--border);background:var(--code-bg);scrollbar-width:thin;border-radius:12px;max-width:100%;padding:22px;overflow-x:auto}.formula-expression__code{width:max-content;min-width:100%;color:var(--code-text);text-align:center;white-space:nowrap;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:clamp(1.05rem,2.4vw,1.45rem);font-weight:650;line-height:2.2;display:block}.formula-expression__argument{border:2px solid var(--argument-color);background:var(--argument-soft);color:var(--argument-color);border-radius:8px;align-items:center;margin-inline:3px;padding:3px 9px 3px 7px;line-height:1.5;display:inline-flex;position:relative}.formula-expression__argument-number{margin-right:5px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:.72em;font-weight:900}.formula-expression__legend{flex-wrap:wrap;gap:8px 16px;margin-top:14px;list-style:none;display:flex}.formula-expression__legend li{color:var(--text-muted);align-items:center;gap:5px;font-size:.8125rem;display:inline-flex}.formula-expression__legend li>span:first-child{color:var(--argument-color);font-weight:900}.formula-visualizer__core{grid-template-columns:minmax(0,1.65fr) minmax(290px,.85fr);grid-template-areas:"sheet guide";align-items:start;gap:22px;margin-bottom:22px;display:grid}.formula-visualizer__sheets{grid-area:sheet;min-width:0}.formula-argument-guide{grid-area:guide;padding:20px}.formula-argument-guide__list{gap:12px;list-style:none;display:grid}.formula-argument-guide__item{border:1px solid var(--argument-color);background:linear-gradient(100deg, var(--argument-soft), var(--surface) 58%);border-left-width:5px;border-radius:11px;min-width:0;padding:15px}.formula-argument-guide__title{align-items:center;gap:9px;display:flex}.formula-argument-guide__number{color:var(--argument-color);font-size:1.2rem;font-weight:900}.formula-argument-guide__title h4{color:var(--heading);font-size:.975rem;font-weight:800;line-height:1.35}.formula-argument-guide__title code{color:var(--text-muted);font-size:.66rem;line-height:1.35;display:block}.formula-argument-guide__reference{justify-content:space-between;align-items:center;gap:8px;margin:10px 0 7px;display:flex}.formula-argument-guide__reference code{border:1px solid var(--argument-color);background:var(--argument-soft);color:var(--argument-color);border-radius:6px;padding:3px 7px;font-size:.8rem;font-weight:800}.formula-argument-guide__reference span{overflow-wrap:anywhere;color:var(--text-muted);text-align:right;font-size:.68rem}.formula-argument-guide__item>p{color:var(--text-muted);font-size:.78rem;line-height:1.6}.formula-sheet{padding:20px}.formula-sheet__scroll{border:1px solid var(--border);background:var(--surface);scrollbar-color:var(--text-xs) var(--surface-2);scrollbar-width:thin;border-radius:11px;max-width:100%;overflow-x:auto}.formula-sheet__table{border-spacing:0;border-collapse:separate;width:max-content;min-width:100%;color:var(--text);table-layout:fixed;font-size:.8125rem}.formula-sheet__table th,.formula-sheet__table td{border-right:1px solid var(--border);border-bottom:1px solid var(--border)}.formula-sheet__table tr:last-child>*{border-bottom:0}.formula-sheet__table tr>:last-child{border-right:0}.formula-sheet__column-header,.formula-sheet__row-header,.formula-sheet__corner{background:var(--surface-3);color:var(--text-muted);text-align:center;font-weight:750}.formula-sheet__column-header{width:106px;min-width:106px;height:30px}.formula-sheet__corner,.formula-sheet__row-header{width:38px;min-width:38px}.formula-sheet__cell{background:var(--surface);text-align:center;vertical-align:middle;width:106px;min-width:106px;height:72px;padding:20px 8px 8px;position:relative}.formula-sheet__cell.has-argument{background:var(--argument-soft);box-shadow:inset 0 0 0 2px var(--argument-color)}.formula-sheet__cell.is-result{background:var(--fv-result-soft);box-shadow:inset 0 0 0 3px var(--fv-result)}.formula-sheet__address{color:var(--text-muted);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.59rem;line-height:1;position:absolute;top:4px;left:6px}.formula-sheet__cell.has-argument .formula-sheet__address{color:var(--argument-color)}.formula-sheet__cell.is-result .formula-sheet__address{color:var(--fv-result)}.formula-sheet__value{max-width:100%;color:var(--heading);text-overflow:ellipsis;white-space:nowrap;font-size:.83rem;font-weight:600;line-height:1.35;display:inline-block;overflow:hidden}.formula-sheet__cell.has-argument .formula-sheet__value,.formula-sheet__cell.is-result .formula-sheet__value{font-weight:800}.formula-sheet__argument-badges{gap:2px;display:flex;position:absolute;top:3px;right:4px}.formula-sheet__argument-badges span{color:var(--argument-color);font-size:.68rem;font-weight:900;line-height:1}.formula-sheet__step-badges{gap:2px;display:flex;position:absolute;bottom:4px;right:4px}.formula-sheet__step-badges span{background:var(--heading);width:17px;height:17px;color:var(--surface);border-radius:5px;place-items:center;font-size:.61rem;font-weight:850;line-height:1;display:grid}.formula-sheet__cell.is-result:after{content:"結果";background:var(--fv-result);color:var(--surface);border-radius:4px;padding:2px 4px;font-size:.55rem;font-weight:850;line-height:1.2;position:absolute;bottom:4px;right:4px}.formula-sheet__cell.is-result .formula-sheet__step-badges{left:4px;right:auto}.formula-sheet__legend{flex-wrap:wrap;gap:8px 14px;margin-top:14px;display:flex}.formula-sheet__legend>span{color:var(--text-muted);align-items:center;gap:5px;font-size:.73rem;display:inline-flex}.formula-sheet__legend b{color:var(--argument-color);font-size:.8rem}.formula-sheet__legend .is-result b{color:var(--fv-result)}.formula-sheet__number-key{color:var(--text-muted);flex-wrap:wrap;gap:6px 14px;margin-top:8px;font-size:.7rem;line-height:1.45;display:flex}.formula-sheet__number-key span{align-items:center;gap:5px;display:inline-flex}.formula-sheet__number-key b{color:var(--heading);font-size:.75rem;font-weight:850}.formula-sheet__number-key span:first-child b{color:var(--fv-arg-1)}.formula-plain-language{background:var(--primary-light);border:1px solid #00adb559;border-radius:16px;grid-template-columns:auto minmax(0,1fr);align-items:start;gap:16px;margin-bottom:22px;padding:22px 24px;display:grid}.formula-plain-language__mark{background:var(--primary);color:#fff;border-radius:11px;place-items:center;width:42px;height:42px;font-family:Georgia,Times New Roman,serif;font-size:.875rem;font-weight:800;display:grid}.formula-plain-language h3{margin-bottom:7px}.formula-plain-language>div:last-child>p:last-child{color:var(--text);font-size:clamp(.95rem,2vw,1.05rem);font-weight:650;line-height:1.75}.formula-walkthrough{padding:clamp(18px,3vw,28px)}.formula-walkthrough__list{grid-template-columns:1fr;gap:12px;list-style:none;display:grid}.formula-walkthrough__step{border:1px solid var(--border);background:var(--surface-2);border-radius:11px;grid-template-columns:auto minmax(0,1fr);gap:13px;min-width:0;padding:15px;display:grid;position:relative}.formula-walkthrough__number{background:var(--heading);width:32px;height:32px;color:var(--surface);border-radius:9px;place-items:center;font-size:.8rem;font-weight:850;display:grid}.formula-walkthrough__body{min-width:0}.formula-walkthrough__title-row{justify-content:space-between;align-items:flex-start;gap:8px;display:flex}.formula-walkthrough h4{color:var(--heading);font-size:.875rem;font-weight:800;line-height:1.45}.formula-walkthrough__targets{flex-wrap:wrap;justify-content:flex-end;gap:4px;display:flex}.formula-walkthrough__targets code{border:1px solid var(--border);background:var(--surface);color:var(--link);border-radius:5px;padding:2px 5px;font-size:.68rem;font-weight:750}.formula-walkthrough__body>p{color:var(--text-muted);margin-top:5px;font-size:.76rem;line-height:1.55}.formula-walkthrough__arrow{z-index:1;color:var(--primary);font-size:1rem;font-weight:900;line-height:1;position:absolute;bottom:-18px;right:50%;transform:translate(50%)}.formula-info-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-bottom:36px;display:grid}.formula-info-card{border:1px solid var(--border);background:var(--surface);border-radius:16px;padding:24px}.formula-info-card h2{margin-bottom:13px;font-size:1.15rem}.formula-info-card>p:last-child,.formula-info-card li{color:var(--text-muted);font-size:.84rem;line-height:1.7}.formula-platform-list{flex-wrap:wrap;gap:8px;margin-bottom:12px;list-style:none;display:flex}.formula-platform-list li{background:var(--primary-light);color:var(--heading);border:1px solid #00adb559;border-radius:8px;align-items:center;gap:6px;padding:7px 10px;font-weight:700;display:inline-flex}.formula-platform-list span{color:var(--primary-dark);font-weight:900}[data-theme=dark] .formula-platform-list span{color:#5eead4}.formula-info-card--notice ul{padding-left:1.25rem}.formula-info-card--notice li+li{margin-top:5px}.formula-info-card--notice code{background:var(--code-bg);color:var(--code-text);border-radius:4px;margin-inline:4px;padding:2px 5px;font-size:.8rem}.formula-related{margin-bottom:36px}.formula-back-link{border:1px solid var(--border);background:var(--surface);min-height:44px;color:var(--link);border-radius:9px;align-items:center;gap:8px;padding:10px 14px;font-size:.875rem;font-weight:700;display:inline-flex}.formula-back-link:hover{border-color:var(--primary)}@media (width>=1100px){.formula-walkthrough__list{grid-template-columns:repeat(5,minmax(0,1fr))}.formula-walkthrough__step{grid-template-columns:1fr;align-content:start}.formula-walkthrough__arrow{top:50%;bottom:auto;right:-18px;transform:translateY(-50%)rotate(-90deg)}.formula-walkthrough__title-row{display:block}.formula-walkthrough__targets{justify-content:flex-start;margin-top:7px}}@media (width<=1000px){.formula-catalog__grid,.formula-related__grid{grid-template-columns:repeat(2,minmax(0,1fr))}.formula-visualizer__core{grid-template-columns:minmax(0,1fr);grid-template-areas:"guide""sheet"}.formula-argument-guide__list{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (width<=760px){.formula-page-shell{padding-top:16px;padding-bottom:48px}.formula-series-nav{align-items:flex-start;gap:10px;margin-bottom:14px}.formula-series-nav p{text-align:left;max-width:240px}.formula-home-hero{grid-template-columns:1fr;min-height:0;margin-bottom:44px;padding:30px 24px}.formula-home-hero__visual{grid-template-columns:1fr auto 1fr auto 1fr;align-items:center;width:100%;display:grid}.formula-home-hero__visual>span:not(.formula-home-hero__arrow){text-align:center;flex-direction:column;gap:5px;min-width:0;padding:10px 5px;font-size:.7rem}.formula-home-hero__arrow{transform:none}.formula-catalog__grid,.formula-related__grid{grid-template-columns:1fr}.formula-function-card{min-height:0}.formula-function-hero{grid-template-columns:minmax(0,1fr);padding:20px}.formula-function-hero__mark{display:none}.formula-definition{grid-template-columns:1fr;gap:10px;padding:16px}.formula-definition__flow{grid-template-columns:1fr;gap:6px}.formula-definition__flow>span[aria-hidden]{text-align:center;line-height:1;transform:rotate(90deg)}.formula-visualizer{border-radius:16px;padding:14px}.formula-argument-guide__list,.formula-info-grid{grid-template-columns:1fr}}@media (width<=520px){.formula-series-nav{display:block}.formula-series-nav p{max-width:none;margin-top:8px;padding-left:43px;font-size:.72rem}.formula-breadcrumb{font-size:.75rem}.formula-home-hero{border-radius:18px;padding:26px 18px}.formula-home-hero h1{font-size:clamp(1.75rem,9vw,2.2rem)}.formula-home-hero__lead{font-size:.93rem}.formula-expression,.formula-argument-guide,.formula-sheet,.formula-walkthrough{border-radius:12px;padding:16px}.formula-expression__scroll{padding:18px 12px}.formula-expression__code{text-align:left}.formula-expression__argument{margin-inline:1px;padding-inline:5px 7px}.formula-expression__argument-number{margin-right:3px}.formula-plain-language{grid-template-columns:1fr;padding:19px}.formula-plain-language__mark{width:36px;height:36px}.formula-info-card{padding:20px}}@media (prefers-reduced-motion:reduce){.formula-page-shell *,.formula-page-shell :before,.formula-page-shell :after{scroll-behavior:auto!important;transition-duration:.01ms!important}.formula-function-card:hover{transform:none}}