@import url('/tokens.css');
/* Hallmark · studied-DNA: doisena.jp · Portfolio Grid + Long Document · contrast: pass · mobile: checked */
#site-header{position:sticky;top:0;z-index:20}#site-header .header{position:relative;top:auto}

*{box-sizing:border-box}html,body{margin:0;overflow-x:clip}html{scroll-padding-top:125px;scroll-behavior:smooth}body{background:var(--color-paper);color:var(--color-ink);font:var(--text-body)/1.7 var(--font-body);min-height:100vh}button,input{font:inherit;color:inherit}button,a,input{touch-action:manipulation}button{cursor:pointer}a{color:inherit;text-decoration:none}button{background:var(--color-paper);border:0}button:disabled{opacity:.5;cursor:wait}button:active{transform:translateY(1px)}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--color-focus);outline-offset:4px}button[aria-pressed=true]{background:var(--color-accent);color:var(--color-accent-ink)}h1,h2,h3{font-style:normal;line-height:1.3;overflow-wrap:anywhere;min-width:0}img{display:block;max-width:100%;height:auto}svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none}.icon-btn{display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;padding:8px;gap:8px}.page-width{width:90%;max-width:1520px;margin:auto}.header{position:sticky;top:0;background:var(--color-paper);z-index:20;border-bottom:var(--rule-heavy) solid var(--color-ink)}.header-inner{height:98px;display:flex;justify-content:space-between;align-items:center;gap:24px}.brand-group{display:flex;gap:32px;align-items:center}.brand{display:block;white-space:nowrap;line-height:1}.brand-small{font:700 12px/1.4 var(--font-body);letter-spacing:.16em}.wordmark{display:block;font:900 48px/.95 var(--font-display);letter-spacing:.08em;margin-top:3px}.tagline{font-size:11px;line-height:1.45;font-weight:700;max-width:170px;margin:0}.nav{display:flex;align-items:center;gap:28px}.nav a,.nav button{font:700 14px/1 var(--font-display);white-space:nowrap;min-height:44px;display:inline-flex;align-items:center;padding:0}.nav a:hover,.nav button:hover{ text-decoration:underline;text-underline-offset:8px}.nav .icon-btn{padding:8px}.carousel{padding:42px 0 30px;border-bottom:var(--rule-heavy) solid var(--color-ink)}.carousel-window{overflow:clip}.carousel-track{width:max-content;position:relative;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:32px}.slide{width:28vw;max-width:390px;display:block;border:var(--rule-heavy) solid var(--color-ink);border-radius:var(--radius-media);overflow:clip;flex:none}.slide img{width:100%;aspect-ratio:16/10;object-fit:cover}.slide.center{width:46vw;max-width:660px}.slide.center 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var(--font-display)}.card-meta{display:flex;justify-content:space-between;align-items:center;margin-top:9px;gap:8px}.card-meta p{font-size:12px;font-weight:700;margin:0}.favorite-btn{padding:4px;min-height:44px;min-width:44px}.favorite-btn[aria-pressed=true]{background:var(--color-paper);color:var(--color-ink)}.favorite-btn[aria-pressed=true] svg{fill:var(--color-accent)}.chapter-card h3{font-size:18px;margin:0 0 5px}.chapter-card .card-description{font-size:13px;line-height:1.7;color:var(--color-muted);margin:0}.resume-link{font-size:13px;font-weight:700;text-decoration:underline;text-underline-offset:4px}.empty{grid-column:1/-1;padding:44px 0;border-top:1px solid var(--color-rule);text-align:center}.empty p{color:var(--color-muted)}.text-link{min-height:44px;display:inline-flex;align-items:center;gap:8px;text-decoration:underline;text-underline-offset:4px;font-weight:700}.footer{border-top:var(--rule-heavy) solid var(--color-ink);padding:24px 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p{margin:0}.note-meta{color:var(--color-muted);font-size:13px}.reading-actions{display:flex;gap:12px;align-items:center}.outline-button{display:inline-flex;justify-content:center;align-items:center;min-height:44px;border:2px solid var(--color-ink);padding:8px 18px;border-radius:6px;font-size:13px;font-weight:700;white-space:nowrap;gap:7px;background:var(--color-paper)}.outline-button[aria-pressed=true]{background:var(--color-accent);color:var(--color-accent-ink)}.reader-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:44px;padding-top:32px;padding-bottom:52px}.contents{position:sticky;top:129px;align-self:start;max-height:calc(100vh - 170px);overflow:auto;padding-right:15px}.contents h2{font:900 28px/1.2 var(--font-display);margin:0}.contents p{font-size:12px;font-weight:700;margin:4px 0 24px}.contents nav{display:grid;gap:6px}.toc-link{display:flex;align-items:center;gap:10px;min-height:50px;padding:7px 0;font-size:14px;border-bottom:2px solid var(--color-transparent)}.toc-number{display:grid;place-items:center;flex:none;width:32px;height:32px;font:700 13px/1 var(--font-display)}.toc-link.active{font-weight:700;border-bottom-color:var(--color-ink)}.toc-link.active .toc-number{background:var(--color-accent);color:var(--color-accent-ink);border-radius:50%}.reader-body{max-width:950px;min-width:0}.reader-chapter{padding:0 0 40px;margin:0 0 35px;border-bottom:var(--rule-heavy) solid var(--color-ink);scroll-margin-top:125px}.chapter-title{display:flex;gap:20px;justify-content:space-between;align-items:flex-start;margin-bottom:18px}.chapter-title h2{font-size:30px;margin:0}.time-link{border:2px solid var(--color-ink);border-radius:30px;min-height:40px;display:inline-flex;align-items:center;white-space:nowrap;font:700 13px/1 var(--font-display);padding:9px 14px;flex:none}.article-copy{font-size:17px;line-height:1.95}.article-copy p{margin:17px 0}.article-copy h3{font-size:20px;margin:28px 0 12px}.article-copy 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small{display:block;font-weight:400;color:var(--color-muted)}.mobile-contents{display:none}.sync-status{font-size:12px;color:var(--color-muted);min-height:20px;display:block}.read-progress{height:3px;background:var(--color-accent);position:fixed;top:98px;left:0;width:0;z-index:25}.loading{padding:50px 0;color:var(--color-muted)}.error-message{color:var(--color-error);line-height:1.6;min-height:24px;font-size:14px}.modal{position:fixed;inset:0;margin:auto;width:min(90vw,720px);max-height:80dvh;height:fit-content;border:var(--rule-heavy) solid var(--color-ink);border-radius:14px;background:var(--color-paper);color:var(--color-ink);padding:30px;overflow:auto}.modal::backdrop{background:var(--color-overlay)}.modal-top{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px}.modal-top h2{font:900 32px/1.2 var(--font-display);margin:0}.field-label{display:block;font-size:14px;font-weight:700;margin-bottom:8px}.text-input{width:100%;height:48px;padding:8px 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0;text-align:left}.account-line{font-size:13px;color:var(--color-muted);padding-top:22px;margin-bottom:10px}.notice{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);z-index:60;border:2px solid var(--color-ink);background:var(--color-paper);color:var(--color-ink);font-size:14px;padding:12px 18px;border-radius:6px;max-width:90vw}.login-main{width:min(90%,440px);margin:80px auto 100px}.login-title{font:900 70px/1.2 var(--font-display);margin:0 0 20px}.login-main h1{font-size:27px;margin:0 0 10px}.login-main .intro{color:var(--color-muted);font-size:15px;margin-bottom:28px}.login-form{display:grid;gap:18px;border-top:var(--rule-heavy) solid var(--color-ink);padding-top:28px}.primary-button{min-height:48px;border:2px solid var(--color-ink);background:var(--color-ink);color:var(--color-paper);font-size:15px;font-weight:700;border-radius:5px;padding:8px 18px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:clip;clip-path:inset(50%);white-space:nowrap;border:0}[hidden]{display:none!important}
@media(hover:hover){.card-media:hover{border-color:var(--color-muted)}.outline-button:hover,.text-input:hover{background:var(--color-surface)}.favorite-btn:hover svg{fill:var(--color-accent)}.primary-button:hover{background:var(--color-muted)}.toc-link:hover{border-bottom-color:var(--color-ink)}}
@media(min-width:1600px){.chapter-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:1100px){.tagline{display:none}.nav{gap:18px}.read-heading{grid-template-columns:240px minmax(0,1fr)}.read-heading .outline-title{font-size:75px}.reading-actions{grid-column:2}.reader-layout{grid-template-columns:190px minmax(0,1fr);gap:30px}.contents h2{font-size:24px}.read-heading h1{font-size:29px}}
@media(max-width:800px){.header-inner{height:82px}.wordmark{font-size:42px}.brand-small{font-size:10px}.nav{gap:16px}.nav a,.nav button{font-size:12px}.nav .topics-nav{display:none}.carousel{padding:28px 0}.carousel-track{gap:18px}.slide{width:35vw}.slide.center{width:62vw}.featured-caption h1{font-size:19px}.carousel-arrow{font-size:16px;gap:8px}.chapter-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px 22px}.reader-layout{display:block}.contents{display:none}.read-heading{grid-template-columns:200px minmax(0,1fr)}.read-heading .outline-title{font-size:60px}.read-heading h1{font-size:26px}.mobile-contents{display:block;position:relative;margin-top:22px;border:2px solid var(--color-ink);border-radius:5px}.mobile-contents summary{min-height:44px;padding:8px 12px;font-weight:700;font-size:14px;cursor:pointer;list-style:none}.mobile-contents summary:after{content:'+';float:right;font-size:23px;line-height:25px}.mobile-contents[open] summary:after{content:'−'}.mobile-toc{padding:8px 12px;border-top:2px solid var(--color-ink);display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:5px}.mobile-toc a{min-height:44px;font-size:12px;display:flex;align-items:center;white-space:nowrap}.read-progress{top:82px}html{scroll-padding-top:108px}.reader-chapter{scroll-margin-top:110px}}
@media(max-width:600px){body{font-size:15px;padding-bottom:58px}.page-width{width:90%}.header-inner{height:79px;gap:12px}.wordmark{font-size:39px;letter-spacing:.1em}.brand-small{font-size:9px;letter-spacing:.1em}.nav a,.nav button:not(.header-menu){display:none}.nav .header-menu{display:inline-flex}.carousel{padding:28px 0 18px}.carousel-track{gap:18px}.slide{width:56vw}.slide.center{width:70vw}.slide.center img{aspect-ratio:1/1;object-fit:cover}.slide img{aspect-ratio:1/1}.carousel-bottom{grid-template-columns:32px minmax(0,1fr) 32px;gap:6px;margin-top:10px}.carousel-arrow{min-height:44px;justify-content:center;padding:0}.carousel-arrow .arrow-label{display:none}.carousel-arrow svg{width:28px;height:28px}.featured-caption h1{font-size:15px;white-space:nowrap}.featured-caption p{font-size:10px}.featured-caption .chapter-meta{font-size:10px}.library{padding:32px 0 36px}.outline-title{font-size:37px;-webkit-text-stroke:1.2px var(--color-ink)}.section-heading{display:block;margin-bottom:18px}.section-heading p{margin:8px 0 0;font-size:11px}.filters{gap:14px;margin-bottom:22px;padding-bottom:10px}.filter{font-size:12px;min-height:36px}.filter span{font-size:10px;margin-left:3px}.chapter-grid{gap:25px 16px}.card-media{border-width:2px;border-radius:9px}.card-media img{aspect-ratio:1/1}.badge{width:35px;height:35px;font-size:9px;left:4px;top:4px}.card-meta{margin-top:3px;gap:0}.card-meta p{font-size:10px}.favorite-btn svg{width:20px;height:20px}.favorite-btn{min-width:36px;min-height:44px}.chapter-card h3{font-size:13px;line-height:1.5}.card-description{display:none}.footer-inner{display:block;font-size:11px}.footer-inner>div{display:flex;justify-content:space-between;gap:16px}.floating-search{display:none}.mobile-bar{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));position:fixed;bottom:0;left:0;right:0;border-top:2px solid var(--color-ink);background:var(--color-paper);z-index:30;padding-bottom:env(safe-area-inset-bottom)}.mobile-bar button{height:56px;display:flex;align-items:center;justify-content:center;gap:12px;font:700 14px/1 var(--font-display);white-space:nowrap}.mobile-bar button+button{border-left:2px solid var(--color-ink)}.reader-head{padding:12px 0 24px}.back-link{font-size:12px}.read-heading{display:block;margin-top:6px}.read-heading .outline-title{font-size:55px;margin-bottom:12px}.read-heading h1{font-size:25px;margin-bottom:5px}.read-heading .note-meta{font-size:11px}.reading-actions{margin-top:18px;gap:14px}.reading-actions .outline-button{font-size:12px;min-height:44px;padding:7px 13px}.reader-layout{padding-top:28px}.chapter-title{gap:12px;align-items:center}.chapter-title h2{font-size:23px}.time-link{font-size:11px;padding:8px 12px;min-height:36px}.article-copy{font-size:15px;line-height:1.95}.article-copy h3{font-size:18px}.article-copy figure{margin:22px 0}.article-copy figcaption{font-size:11px}.article-copy table{font-size:12px}.overview{padding:14px 16px;font-size:13px}.reader-chapter{padding-bottom:28px;margin-bottom:30px;scroll-margin-top:108px}.practice h3{font-size:20px}.check-row{font-size:13px}.article-nav{font-size:13px}.article-nav small{font-size:11px}.modal{width:92vw;padding:22px;max-height:82dvh}.modal-top h2{font-size:25px}.search-result{gap:12px}.search-result img{width:75px}.search-result h3{font-size:13px}.read-progress{top:79px}.notice{bottom:75px;max-width:90vw;font-size:12px}.login-main{margin-top:50px}.login-title{font-size:55px}}
@media(max-width:350px){.filter{font-size:11px}.filters{gap:11px}.chapter-grid{gap:24px 12px}.featured-caption h1{font-size:13px}.card-meta p{font-size:9px}.read-heading h1{font-size:23px}.chapter-title h2{font-size:21px}.time-link{font-size:10px;padding:8px}.outline-title{font-size:33px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}
@media print{.header,.contents,.mobile-bar,.floating-search,.reading-actions,.mobile-contents,.article-nav,.footer,.read-progress,.back-link{display:none}body{padding:0;font-size:11pt}.page-width{width:100%;max-width:none}.reader-head{padding:0 0 20px}.read-heading{display:block}.read-heading .outline-title{display:none}.reader-layout{display:block}.article-copy{font-size:11pt}.article-copy figure,.check-row,tr{break-inside:avoid}.chapter-title h2{font-size:20pt}.reader-chapter{scroll-margin:0}.overview{display:none}h2,h3{break-after:avoid}}