/* Shared corporate chrome, matched to actionary.co.jp on 2026-09-10. */
:root{--paper:#f4f2ee;--ink:#20262b;--muted:#60666c;--line:#d8d8d2;--sage:#536a7a;--dark:#18242e;--white:#fff;--font:"Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",system-ui,sans-serif;--serif:"Shippori Mincho","Yu Mincho","Hiragino Mincho ProN",Georgia,serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased}a{color:inherit;text-underline-offset:5px;text-decoration-thickness:1px}a:hover{color:#355b76}button,input{font:inherit}button{cursor:pointer}button,a{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid #598bad;outline-offset:4px}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}.skip{position:fixed;top:-100px;left:20px;background:white;padding:12px;z-index:99}.skip:focus{top:12px}.demo-banner{background:#e6e3dc;text-align:center;padding:4px 16px;font-size:11px;color:#59564e}
.site-header{background:#0d0e10;color:#f4f2ee;border-bottom:1px solid #ffffff29;position:relative;z-index:10}.site-header a,.corporate-footer a{text-decoration:none;color:inherit}.header-inner{display:flex;justify-content:space-between;align-items:center;gap:24px;max-width:1440px;height:68px;margin:auto;padding:0 clamp(18px,4vw,56px)}.site-brand{font-family:var(--serif);font-size:20px;font-weight:600;letter-spacing:.06em;white-space:nowrap}.desktop-nav{display:flex;gap:clamp(16px,1.8vw,28px)}.desktop-nav a{font-size:12px;letter-spacing:.04em;color:#bfc0c1;border-bottom:1px solid transparent;padding:22px 0}.desktop-nav a:hover,.desktop-nav a[aria-current=page]{color:white;border-bottom-color:#a7b9c7}.header-actions{display:flex;align-items:center;gap:12px}.header-contact{border:1px solid #f4f2ee66;padding:11px 16px;font-size:12px;white-space:nowrap}.header-contact span{margin-left:12px}.header-contact:hover{background:#f4f2ee;color:#0d0e10}.mobile-menu{display:none}.mobile-menu summary{cursor:pointer;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:6px;width:44px;height:44px;list-style:none;border:1px solid #f4f2ee66}.mobile-menu summary::-webkit-details-marker{display:none}.mobile-menu summary span{background:currentColor;width:18px;height:1px}.mobile-menu[open] summary span:first-child{transform:translateY(3.5px) rotate(45deg)}.mobile-menu[open] summary span:last-child{transform:translateY(-3.5px) rotate(-45deg)}.mobile-menu nav{position:absolute;top:68px;left:0;right:0;background:#0d0e10;padding:12px 24px 24px;max-height:calc(100dvh - 68px);overflow:auto;box-shadow:0 20px 35px #0003}.mobile-menu nav a{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #ffffff24;padding:18px 0;font-size:15px}.mobile-menu nav small{font-size:11px;color:#a7b9c7}
.corporate-footer{background:#0d0e10;color:#bfc0c1;margin-top:64px}.footer-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr 1.2fr;gap:40px;max-width:1440px;margin:auto;padding:72px clamp(18px,4vw,56px) 48px}.footer-brand .site-brand{color:#f4f2ee}.footer-brand p{font-family:var(--serif);font-size:15px;line-height:1.9;margin-top:18px}.footer-grid h2{font-size:10px;font-weight:500;letter-spacing:.2em;color:#a7b9c7;margin:0 0 18px}.footer-grid nav{display:flex;flex-direction:column;align-items:flex-start;gap:2px}.footer-grid nav h2{margin-bottom:10px}.footer-grid a:not(.site-brand){padding:7px 0;font-size:12px}.footer-grid a:hover,.footer-bottom a:hover{color:white;text-decoration:underline}.footer-contact p{font-size:12px;line-height:2;margin:0 0 12px}.footer-bottom{display:flex;flex-wrap:wrap;gap:24px;max-width:1440px;margin:auto;border-top:1px solid #ffffff26;padding:24px clamp(18px,4vw,56px);font-size:11px}.footer-bottom small{font-size:inherit;margin-right:auto}
/* Knowledge is an article library within the corporate site. */
.knowledge-utility{width:min(1200px,calc(100% - 36px));margin:20px auto;display:flex;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:14px;font-size:12px}.knowledge-utility a{text-decoration:none}.knowledge-utility nav{display:flex;gap:24px}
main{min-height:60vh}.library-intro,.section,.breadcrumb,.article{width:min(1200px,calc(100% - 96px));margin-left:auto;margin-right:auto}.eyebrow{font-size:10px;letter-spacing:.17em;font-weight:600;color:var(--muted);margin:0 0 12px;line-height:1.5}h2{font-size:26px;font-weight:600;letter-spacing:.02em;line-height:1.6;margin:0 0 22px}.library-intro{display:flex;align-items:center;justify-content:space-between;gap:48px;padding:40px 0 30px}.library-intro .eyebrow{margin-bottom:7px}.library-intro h1{font-family:Georgia,var(--serif);font-size:54px;font-weight:400;letter-spacing:-.04em;margin:0;line-height:1.2}.library-intro h1 span{font-family:var(--font);display:block;font-size:12px;letter-spacing:.09em;margin-top:14px;color:var(--muted)}.library-intro-tools{width:360px;max-width:100%}.library-intro-tools>p{font-size:12px;line-height:1.9;color:var(--muted);margin:0 0 13px}.library-search{display:flex;align-items:center;gap:10px;border:1px solid #c8ccc9;background:#ffffff80}.library-search input{min-width:0;width:100%;font-size:12px;background:transparent;border:0;padding:12px 14px;color:var(--ink)}.library-search button{flex-shrink:0;border:0;border-left:1px solid var(--line);background:none;color:var(--ink);font-size:12px;padding:0 16px}.library-search input::placeholder{color:var(--muted)}
.card-cover{position:relative;isolation:isolate;overflow:hidden;aspect-ratio:1.85;background:#d5dce0;color:#243845;padding:22px;display:flex;flex-direction:column;justify-content:space-between}
.section{padding-top:45px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:22px}.section-head h2{margin:0;font-size:24px}.section-head .eyebrow{font-size:9px;margin-bottom:5px}.section-head>span{font-size:11px;color:var(--muted)}.topic-filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}.topic-filters button{border:1px solid #cdcfca;background:transparent;padding:7px 15px;font-size:11px;color:#49545b;border-radius:2px}.topic-filters button[aria-pressed=true]{background:var(--dark);color:white;border-color:var(--dark)}.topic-filters button:hover{border-color:var(--ink)}.article-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:30px 24px}.article-card{display:flex;flex-direction:column;min-width:0}.card-content{padding:16px 0 18px;border-bottom:1px solid var(--line);display:flex;flex:1;flex-direction:column}.card-meta{display:flex;gap:10px;align-items:center;font-size:9px;color:var(--muted)}.card-meta span:first-child{color:#365469;font-weight:600}.card-meta span+span{border-left:1px solid #bbbfbf;padding-left:10px}.article-card h3{font-size:17px;font-weight:600;line-height:1.75;margin:10px 0 8px;letter-spacing:.01em}.article-card h3 a{text-decoration:none}.article-card h3 a:hover{text-decoration:underline}.card-summary{font-size:12px;line-height:1.9;color:var(--muted);margin:0 0 16px}.card-bottom{display:flex;justify-content:space-between;gap:12px;font-size:10px;color:var(--muted);margin-top:auto}.card-bottom time{white-space:nowrap}.relation-label{font-size:11px;margin:10px 0 0;color:var(--muted)}
.breadcrumb{display:flex;gap:15px;font-size:12px;color:var(--muted);margin-top:33px}.breadcrumb a{text-decoration:none}.article-header{max-width:890px;padding:58px 0 50px}.article-header h1{font-size:clamp(29px,3.1vw,44px);line-height:1.6;font-weight:550;letter-spacing:.02em;margin:0 0 24px}.article-deck{font-size:18px;line-height:1.95;color:var(--muted)}.article-dates{font-size:12px;margin-top:28px;color:var(--muted)}.article-dates span{margin:0 12px}.byline{display:flex;gap:15px;font-size:12px}.byline span{margin-left:20px;color:var(--muted)}.article-layout{display:grid;grid-template-columns:225px minmax(0,720px);gap:65px;border-top:1px solid var(--line);padding-top:44px}.toc{align-self:start;position:sticky;top:30px;font-size:12px}.toc nav{display:flex;flex-direction:column;gap:13px;margin-bottom:30px}.toc a{text-decoration:none;color:var(--muted)}.toc a:hover{color:var(--ink)}.toc .eyebrow{margin-bottom:20px}.text-button{border:0;border-bottom:1px solid var(--line);background:none;padding:5px 0;color:inherit;font-size:12px}.toc [role=status]{display:block;font-size:11px}.prose{font-size:18px;line-height:1.95;overflow-wrap:anywhere}.prose h2{font-size:27px;font-weight:600;margin:52px 0 24px}.prose h3{font-size:19px;font-weight:600;margin:28px 0 12px}.prose p{margin:0 0 24px}.prose ul,.prose ol{padding-left:26px;margin:14px 0 28px}.prose li{padding:3px 0}.answer{background:#eeefe7;padding:31px 36px}.answer h2{margin:0 0 18px}.answer .eyebrow{margin-bottom:12px}.answer-text{font-size:21px;line-height:1.9;font-weight:550}.answer h3{font-size:15px}.answer p:not(.answer-text),.answer ul{font-size:15px}.answer>:last-child{margin-bottom:0}.muted{color:var(--muted)}.callout{border-left:2px solid var(--sage);background:#eeefe7;padding:22px 26px;margin:30px 0}.callout strong{font-size:13px;color:#53634f}.callout p{margin:8px 0 0;font-size:16px}.table-scroll{overflow:auto;margin:30px 0;border:1px solid var(--line)}table{border-collapse:collapse;min-width:500px;width:100%;font-size:14px}caption{text-align:left;font-size:13px;padding:15px 18px;color:var(--muted)}th,td{padding:14px 18px;border-top:1px solid var(--line);text-align:left;vertical-align:top}th{background:#eeefe7;font-weight:600}.prose pre{background:#e9ece8;padding:24px;overflow:auto;font-size:13px;line-height:1.7}.prose blockquote{margin:30px 0;padding:10px 25px;border-left:2px solid var(--sage);color:var(--muted)}.prose figure{margin:30px 0}.prose img{width:100%;height:auto;display:block}.prose figcaption{font-size:12px;color:var(--muted)}.claim-link{font-size:11px}.claims>div{border-top:1px solid var(--line);padding-top:20px}.claims p,.claims a{font-size:14px}.pill{display:inline-block;background:#e9ece4;color:#4c5c46;padding:3px 9px;font-size:11px;line-height:1.6}.source{border-top:1px solid var(--line);padding:15px 0}.source h3{font-size:16px;margin:10px 0}.source p,.source dl{font-size:13px;color:var(--muted)}.source dt{font-weight:650;margin-top:10px}.source dd{margin:0}.change-log p,.change-log a{font-size:13px}.change-log time{display:inline-block;min-width:100px;color:var(--muted)}.contextual-cta{padding:30px;background:var(--dark);color:var(--white);margin-top:48px}.contextual-cta h2{margin:0 0 22px}.contextual-cta .eyebrow{color:#cad2cb}.contextual-cta p:last-child{font-size:12px;margin-top:20px;margin-bottom:0}.button{display:inline-block;padding:12px 22px;background:#f4f3ed;color:var(--ink);text-decoration:none;font-size:14px}.document{max-width:820px;width:calc(100% - 96px);margin:80px auto 0;min-height:40vh}.document h1{font-weight:500;font-size:clamp(32px,4vw,48px);line-height:1.55;margin:0 0 26px}.empty{border-block:1px solid var(--line);padding:32px 0;color:var(--muted);font-size:14px}.search-input{display:flex;border-bottom:1px solid var(--ink);margin:10px 0 22px}.search-input input{width:100%;border:0;background:transparent;padding:18px 5px;font-size:23px;min-width:0}.search-input button{background:transparent;border:0;color:inherit;font-size:14px;min-width:72px}.search-results article{border-top:1px solid var(--line);padding:22px 0}.search-results h2{font-size:21px}.search-results p,#search-status{font-size:14px;color:var(--muted)}

@media(max-width:1000px){.desktop-nav{display:none}.mobile-menu{display:block}.library-intro,.section,.breadcrumb,.article{width:calc(100% - 56px)}.library-intro{gap:28px}.article-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.article-layout{grid-template-columns:170px minmax(0,1fr);gap:32px}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.document{width:calc(100% - 56px)}.byline{flex-wrap:wrap}.byline span{margin-left:0}}
@media(max-width:600px){body{font-size:15px}.demo-banner{font-size:9px}.header-inner{gap:12px}.header-contact{padding:10px 12px}.header-contact span{display:none}.library-intro,.section,.breadcrumb,.article{width:calc(100% - 36px)}.library-intro{display:block;padding:25px 0 20px}.library-intro h1{font-size:43px}.library-intro h1 span{font-size:11px;margin-top:9px}.library-intro-tools{width:100%;margin-top:22px}.library-intro-tools>p{display:none}.library-search input{font-size:13px;padding:11px 12px}.section{padding-top:32px}.section-head{margin-bottom:18px;gap:10px}.section-head h2{font-size:21px}.section-head>span{font-size:9px}.topic-filters{flex-wrap:nowrap;overflow-x:auto;padding:4px 3px 10px;margin:0 -3px 10px}.topic-filters button{flex-shrink:0;font-size:10px;padding:7px 12px}.article-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:23px 14px}.card-cover{aspect-ratio:1.4;padding:12px}.card-content{padding:11px 0 12px}.card-meta{font-size:8px;gap:0}.card-meta span+span{display:none}.article-card h3{font-size:14px;line-height:1.8;margin:7px 0 10px}.card-summary{display:none}.card-bottom{display:block;font-size:9px}.card-bottom time{display:block;margin-top:3px}.corporate-footer{margin-top:36px}.footer-grid{gap:30px 20px;padding-top:40px;padding-bottom:32px}.footer-brand,.footer-contact{grid-column:1/-1}.footer-bottom{gap:16px;font-size:10px}.footer-bottom small{flex-basis:100%}.article-header{padding:32px 0}.article-header h1{font-size:28px}.article-deck{font-size:16px}.article-layout{display:block;padding-top:24px}.toc{position:static;margin-bottom:30px;border-bottom:1px solid var(--line);padding-bottom:23px}.toc nav{gap:9px}.prose{font-size:17px}.prose h2{font-size:24px;margin-top:40px}.answer{padding:23px}.answer h2{margin-top:0}.answer-text{font-size:19px}.article-dates{font-size:10px}.byline{font-size:11px}.document{width:calc(100% - 36px);margin-top:40px}.document h1{font-size:30px}.search-input input{font-size:19px}.source dd{overflow-wrap:anywhere}}
@media(max-width:350px){.article-grid{grid-template-columns:1fr}.card-cover{aspect-ratio:1.9}.card-summary{display:block}.article-card h3{font-size:16px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
@media print{body{background:white;color:black}.site-header,.toc,.corporate-footer,.demo-banner,.contextual-cta,.skip{display:none}.article,.section,.document{width:100%;margin:0}.article-layout{display:block}.prose{font-size:11pt}.answer{background:none;border:1px solid #bbb}a[href^="https"]:after{content:" (" attr(href) ")";font-size:8pt}h2,h3{break-after:avoid}table,figure{break-inside:avoid}.table-scroll{overflow:visible}table{min-width:0}}

.publication-links{width:min(1200px,calc(100% - 36px));margin:36px auto 0;display:flex;gap:24px;justify-content:flex-end;font-size:11px}.article-lead{font-size:20px;line-height:1.9}.article-notes{margin-top:36px;border-block:1px solid var(--line);padding:18px 0;font-size:14px}.article-notes>summary{cursor:pointer;font-size:14px}.article-notes h2{font-size:20px}.article-notes h3{font-size:16px}.library-intro{padding-top:30px;padding-bottom:25px}.library-intro h1{font-family:var(--serif);font-size:40px}.library-intro-tools{margin-top:0}@media(max-width:600px){.library-intro-tools{margin-top:20px}.library-intro h1{font-size:32px}}

/* Article-first layout: no manufactured covers, repeated hero or manifesto. */
.library-intro{padding:32px 0 20px;border-bottom:1px solid var(--line)}.library-intro h1{font-family:var(--font);font-size:28px;font-weight:600;letter-spacing:0}.library-section{padding-top:20px}.library-section>.section-head{margin-bottom:10px;justify-content:flex-end}.topic-filters{margin-top:-34px;margin-bottom:26px;padding-right:150px;min-height:36px;align-items:center}.article-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 48px}.card-content{padding:20px 0 28px}.card-meta{font-size:11px}.article-card h3{font-size:21px;line-height:1.7;margin:10px 0 12px}.card-summary{font-size:14px;line-height:1.9;margin:0 0 24px}.card-bottom{font-size:11px}.card-cover{padding:0;aspect-ratio:16/9;background:transparent}.card-cover img{width:100%;height:100%;object-fit:cover;display:block}.topic-directory{display:flex;flex-wrap:wrap;gap:22px;width:min(1200px,calc(100% - 96px));margin:38px auto 0;font-size:12px}.publication-links{justify-content:flex-start;margin-top:25px;font-size:12px}.corporate-footer{margin-top:42px}.article-header .eyebrow{display:none}.article-header{max-width:820px;margin:auto}.article-layout{grid-template-columns:minmax(0,740px);justify-content:center;border-top:0;padding-top:10px}.toc{position:static;margin-bottom:12px}.toc nav,.toc>.eyebrow{display:none}.article-notes summary{padding:4px 0}.article .breadcrumb{margin-top:24px}
@media(max-width:700px){.article-grid{grid-template-columns:1fr;gap:0}.article-card h3{font-size:19px}.card-summary{display:block;font-size:13px;margin-bottom:16px}.card-bottom{display:flex;font-size:10px}.card-bottom time{margin:0}.card-content{padding:22px 0}.library-intro{padding:24px 0 20px;display:block}.library-intro h1{font-size:24px}.library-intro-tools{width:100%;margin-top:18px}.library-section>.section-head{display:none}.topic-filters{margin:0 -3px 4px;padding:4px 3px 12px;flex-wrap:nowrap;overflow-x:auto}.topic-filters button{padding:8px 12px;font-size:11px}.topic-directory{width:calc(100% - 36px);gap:12px 20px;font-size:11px;margin-top:25px}.publication-links{font-size:11px}.article-layout{display:block}.toc{border-bottom:0;padding-bottom:0}.prose{font-size:17px}}

/* Image-led editorial cards. */
.article-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:36px 28px}.thumbnail-link{display:block;overflow:hidden;border-radius:5px}.card-cover{aspect-ratio:16/9;overflow:hidden}.card-cover img{transition:transform .25s ease}.thumbnail-link:hover img{transform:scale(1.035)}.card-content{padding:16px 0 20px}.article-card h3{font-size:18px;line-height:1.65;margin:8px 0 10px}.card-summary{font-size:13px;line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:18px}.card-meta{font-size:10px}.card-bottom{font-size:10px;gap:8px;flex-wrap:wrap}.article-cover{max-width:820px;margin:28px auto 38px}.article-cover .card-cover{border-radius:5px}
@media(max-width:1000px){.article-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px 22px}}
@media(max-width:600px){.article-grid{grid-template-columns:1fr;gap:24px}.article-card h3{font-size:19px}.card-content{padding-top:14px}.card-bottom{display:flex}.card-cover{aspect-ratio:16/9}.article-cover{margin:20px 0}.topic-filters{margin-bottom:18px}}

.school-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}.school-card{border-top:2px solid var(--ink,#111);padding:28px 0}.school-card h2{font-size:clamp(22px,3vw,30px);line-height:1.6}.school-intro h1{font-size:clamp(28px,4vw,48px);line-height:1.6}.school-intro dl{display:grid;grid-template-columns:64px 1fr;gap:12px}.school-intro dd{margin:0}.school-notice{padding:18px;background:#ece5d8;border-left:3px solid #775b24}.school-curriculum{max-width:1000px}.school-curriculum section{margin-bottom:56px}.school-curriculum ol{list-style:none;padding:0}.school-lesson{display:grid;grid-template-columns:minmax(0,1fr) 160px;gap:28px;border-bottom:1px solid #c6c5c1;padding:24px 0}.school-lesson h3{font-size:20px;line-height:1.6;margin:10px 0}.school-lesson p{line-height:1.9}.school-curriculum nav,.school-practice nav{display:flex;flex-direction:column;gap:12px}.school-practice{margin-top:48px;border-top:2px solid #222;padding-top:24px}.school-material{white-space:pre-wrap;overflow-wrap:anywhere;max-width:100%;font:inherit;background:#ebe9e4;padding:20px}.school-practice details{margin:24px 0;padding:16px;border:1px solid #aaa}.school-practice summary{cursor:pointer;font-weight:600;min-height:32px}.school-progress{margin:32px 0;border:1px solid #aaa;padding:20px}.school-progress label{display:block;margin:16px 0}.school-progress button{padding:10px 14px;margin:8px 0;cursor:pointer}.school-practice input{width:20px;height:20px;vertical-align:middle}.school-intro,.school-card,.school-lesson{overflow-wrap:anywhere}@media(max-width:700px){.school-grid{grid-template-columns:1fr}.school-lesson{grid-template-columns:1fr;gap:8px}.school-material{padding:14px}.school-progress{padding:14px}}

/* Long editorial columns: visible byline context and an accessible, optional contents list. */
.article-header .eyebrow{display:block}.article-contents{border-block:1px solid var(--line);padding:14px 0;margin-bottom:16px}.article-contents summary{cursor:pointer;font-size:14px}.toc .article-contents nav{display:flex;max-height:55vh;overflow:auto;margin:16px 0 0;padding-right:12px}.citation-ref{font-size:.85em;text-underline-offset:3px}.prose p{white-space:pre-line}.article-notes .source:target{background:#f2eee5;outline:2px solid #c1b598;outline-offset:8px}.article-contents a{line-height:1.7}