:root{--paper:#f5f7fa;--surface:#ffffff;--ink:#172033;--ink-2:#4c566b;--rule:#d7dce5;--accent:#23408e;--accent-soft:#e6ebf7;--mark:#c98a0b;--mark-ink:#7a5300;--mark-soft:#fbf2de;--c-ai:#23408e;--c-tech:#1f6b70;--c-shogi:#8a5a1e;--c-career:#7a3a6c;--c-misc:#5b6475;--font-sans:'BIZ UDPGothic', 'Hiragino Sans', 'Noto Sans JP', 'Noto Sans CJK JP', system-ui, sans-serif;--font-mincho:'Shippori Mincho B1', 'Hiragino Mincho ProN', 'Yu Mincho', 'Noto Serif CJK JP', serif;--measure:40em;--radius:6px;color-scheme:light dark}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--paper:#141b26;--surface:#1a2331;--ink:#e5e9f0;--ink-2:#a2acbc;--rule:#2b3546;--accent:#93aaf0;--accent-soft:#1f2a42;--mark:#e8b33f;--mark-ink:#f1c869;--mark-soft:#2a2516;--c-ai:#93aaf0;--c-tech:#6cc3c6;--c-shogi:#d9a866;--c-career:#d79ac6;--c-misc:#a2acbc}}:root[data-theme=dark]{--paper:#141b26;--surface:#1a2331;--ink:#e5e9f0;--ink-2:#a2acbc;--rule:#2b3546;--accent:#93aaf0;--accent-soft:#1f2a42;--mark:#e8b33f;--mark-ink:#f1c869;--mark-soft:#2a2516;--c-ai:#93aaf0;--c-tech:#6cc3c6;--c-shogi:#d9a866;--c-career:#d79ac6;--c-misc:#a2acbc}*,*::before,*::after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;text-size-adjust:100%}body{margin:0;min-height:100vh;display:flex;flex-direction:column;background:var(--paper);color:var(--ink);font-family:var(--font-sans);font-size:1.0625rem;line-height:1.85;font-feature-settings:'palt' 0;overflow-wrap:anywhere;line-break:strict}a{color:var(--accent);text-underline-offset:.2em;text-decoration-thickness:1px}a:hover{text-decoration-thickness:2px}:focus-visible{outline:2px solid var(--mark);outline-offset:2px;border-radius:2px}h1,h2,h3{line-height:1.45;margin:0;word-break:auto-phrase;text-wrap:pretty}img{max-width:100%;height:auto}.wrap{width:100%;max-width:68rem;margin-inline:auto;padding-inline:16px}@media(min-width:720px){.wrap{padding-inline:32px}}.skip{position:absolute;left:-9999px}.skip:focus{left:16px;top:8px;z-index:10;background:var(--surface);padding:.25rem .75rem}.preview-bar{background:var(--mark-soft);color:var(--mark-ink);border-bottom:1px solid var(--mark);font-size:.875rem;padding:.5rem 16px;text-align:center}.masthead{border-bottom:1px solid var(--rule);background:var(--surface)}.masthead__inner{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:.75rem 2rem;padding-block:1.25rem 0}.brand{display:grid;text-decoration:none;color:var(--ink);padding-bottom:.75rem}.brand__name{font-family:var(--font-mincho);font-weight:700;font-size:1.75rem;letter-spacing:.01em;line-height:1.2}.brand__tagline{font-size:.8125rem;color:var(--ink-2)}.nav{max-width:100%;overflow-x:auto;scrollbar-width:none}.nav ul{display:flex;gap:1.25rem;list-style:none;margin:0;padding:0;white-space:nowrap}.nav a{display:block;padding-block:.5rem .75rem;color:var(--ink-2);text-decoration:none;font-size:.9375rem;border-bottom:3px solid transparent}.nav a:hover{color:var(--ink)}.nav a[aria-current=page]{color:var(--ink);border-bottom-color:var(--accent)}.issue-mark{font-family:var(--font-mincho);color:var(--ink);writing-mode:vertical-rl;text-orientation:upright;border-left:2px solid var(--accent);padding-left:.6em;line-height:1.15;flex:none}.issue-mark__no,.issue-mark__date{display:block}.issue-mark__no{font-size:.42em;color:var(--accent);letter-spacing:.15em;margin-left:.5em}.issue-mark__date{font-weight:700;letter-spacing:.06em}.issue-mark--large{font-size:clamp(2.5rem,6vw,4.25rem)}.issue-mark--small{font-size:1.75rem}@media(max-width:639px){.issue-mark{writing-mode:horizontal-tb;border-left:0;padding-left:0;border-top:2px solid var(--accent);padding-top:.4em}.issue-mark__no{margin-left:0}.issue-mark--large{font-size:2.25rem}.issue-mark__no{font-size:.45em}}.hero{padding-block:2.5rem 2.75rem}.hero__issue{display:flex;gap:clamp(1.25rem,4vw,3rem);align-items:flex-start}@media(max-width:639px){.hero__issue{flex-direction:column}}.hero__body{max-width:var(--measure);min-width:0}.hero__kicker{display:flex;flex-wrap:wrap;gap:0 1rem;margin:0 0 .5rem;font-size:.875rem;color:var(--ink-2)}.hero__kicker a{font-weight:700;text-decoration:none}.hero__title{font-family:var(--font-mincho);font-weight:700;font-size:clamp(1.5rem,3.2vw,2.125rem)}.hero__title a{color:inherit;text-decoration:none}.hero__title a:hover{text-decoration:underline;text-decoration-thickness:1px}.hero__summary{margin:1.25rem 0 1.75rem;padding:0;list-style:none;counter-reset:s}.hero__summary li{counter-increment:s;display:grid;grid-template-columns:1.75rem 1fr;padding-block:.6rem;border-top:1px solid var(--rule)}.hero__summary li:last-child{border-bottom:1px solid var(--rule)}.hero__summary li::before{content:counter(s);font-family:var(--font-mincho);font-weight:700;color:var(--accent)}.hero__empty{max-width:var(--measure)}.hero__empty p{color:var(--ink-2)}.button{display:inline-block;background:var(--accent);color:var(--surface);text-decoration:none;padding:.6rem 1.25rem;border-radius:var(--radius);font-weight:700;font-size:.9375rem}.button:hover{filter:brightness(1.1)}.home-grid{display:grid;gap:2.5rem 4rem;padding-block:1rem 4rem}@media(min-width:900px){.home-grid{grid-template-columns:minmax(0,1fr)19rem}}.home-grid__side{display:grid;gap:2.5rem;align-content:start}.section-title{font-family:var(--font-mincho);font-weight:700;font-size:1.125rem;padding-bottom:.5rem;margin-bottom:.25rem;border-bottom:2px solid var(--ink)}.empty{color:var(--ink-2)}.more{margin:.75rem 0 0;font-size:.9375rem}.muted{color:var(--ink-2);font-size:.875rem}.cat{display:inline-flex;align-items:center;gap:.4em;font-size:.8125rem;font-weight:700;color:var(--c,var(--c-misc));text-decoration:none}.cat::before{content:'';width:.55em;height:.55em;background:currentColor;border-radius:1px}.cat--ai{--c:var(--c-ai)}.cat--tech{--c:var(--c-tech)}.cat--shogi{--c:var(--c-shogi)}.cat--career{--c:var(--c-career)}.cat--misc{--c:var(--c-misc)}.post-list{list-style:none;margin:0;padding:0}.post-list__item{border-bottom:1px solid var(--rule)}.post-list__link{display:grid;gap:.2rem;padding-block:1.1rem;color:var(--ink);text-decoration:none}.post-list__meta{display:flex;flex-wrap:wrap;gap:0 1rem;font-size:.8125rem;color:var(--ink-2)}.post-list__title{font-family:var(--font-mincho);font-weight:700;font-size:1.1875rem;line-height:1.5}.post-list__link:hover .post-list__title{color:var(--accent)}.post-list__desc{font-size:.9375rem;color:var(--ink-2)}.back-list,.cat-list{list-style:none;margin:0;padding:0}.back-list a{display:flex;justify-content:space-between;gap:1rem;padding-block:.6rem;border-bottom:1px solid var(--rule);color:var(--ink);text-decoration:none;font-size:.9375rem}.back-list__no{font-family:var(--font-mincho);font-weight:700}.back-list time{color:var(--ink-2);font-size:.875rem}.back-list a:hover .back-list__no{color:var(--accent)}.cat-list a{display:grid;padding-block:.6rem;border-bottom:1px solid var(--rule);text-decoration:none}.cat-list__desc{font-size:.8125rem;color:var(--ink-2);line-height:1.6}.page{padding-block:2.5rem 4rem}.page-head{max-width:var(--measure);margin-bottom:1.5rem}.page-kicker{margin:0}.page-title{font-family:var(--font-mincho);font-weight:700;font-size:clamp(1.5rem,3vw,2rem)}.page-lead{color:var(--ink-2);margin:.5rem 0 0}.issue-list{list-style:none;margin:0;padding:0;max-width:48rem}.issue-list a{display:grid;grid-template-columns:auto 1fr;gap:.15rem 1.25rem;padding-block:1.1rem;border-bottom:1px solid var(--rule);color:var(--ink);text-decoration:none}.issue-list__no{font-family:var(--font-mincho);font-weight:700;color:var(--accent)}.issue-list time{color:var(--ink-2);font-size:.875rem;align-self:center}.issue-list__title{grid-column:1/-1;font-family:var(--font-mincho);font-weight:700;font-size:1.1875rem}.issue-list__lead{grid-column:1/-1;font-size:.9375rem;color:var(--ink-2)}.issue-list a:hover .issue-list__title{color:var(--accent)}.issue{padding-block:2.5rem 4rem}.issue>*{max-width:46rem}.issue__head{display:flex;gap:clamp(1.25rem,4vw,2.5rem);align-items:flex-start;margin-bottom:2rem}@media(max-width:639px){.issue__head{flex-direction:column}}.issue__series{margin:0;font-size:.875rem;font-weight:700}.issue__series a{text-decoration:none}.issue__title{font-family:var(--font-mincho);font-weight:700;font-size:clamp(1.5rem,3.2vw,2.125rem)}.issue__date{margin:.25rem 0 0;color:var(--ink-2);font-size:.9375rem}.digest{margin-bottom:1.5rem}.digest__title,.editor__title{font-size:.875rem;font-weight:700;color:var(--ink-2);margin-bottom:.25rem}.digest__list{margin:0;padding:0;list-style:none;counter-reset:d}.digest__list li{counter-increment:d;display:grid;grid-template-columns:1.75rem 1fr;padding-block:.55rem;border-top:1px solid var(--rule);font-size:1.0625rem}.digest__list li:last-child{border-bottom:1px solid var(--rule)}.digest__list li::before{content:counter(d);font-family:var(--font-mincho);font-weight:700;color:var(--accent)}.editor{background:var(--mark-soft);border-radius:var(--radius);padding:1rem 1.25rem;margin-bottom:2.75rem}.editor__title{color:var(--mark-ink)}.editor__body{margin:0;font-family:var(--font-mincho);font-size:1.0625rem;line-height:1.95}.editor__sign{margin:.5rem 0 0;text-align:right;font-size:.8125rem;color:var(--mark-ink)}.editor--todo{background:0 0;border:2px dashed var(--mark)}.editor__todo{margin:0;color:var(--mark-ink);font-weight:700}.news-items{list-style:none;margin:0;padding:0;counter-reset:n}.news-item{counter-increment:n;padding-block:1.75rem;border-top:1px solid var(--rule)}.news-items__ad{padding-block:1rem;border-top:1px solid var(--rule)}.news-item__topic{display:flex;align-items:center;gap:.75rem;margin:0 0 .35rem}.news-item__topic::before{content:counter(n);font-family:var(--font-mincho);font-weight:700;font-size:1.25rem;color:var(--accent);line-height:1}.topic{font-size:.75rem;font-weight:700;color:var(--ink-2);border:1px solid var(--rule);border-radius:999px;padding:.05rem .6rem}.news-item__title{font-family:var(--font-mincho);font-weight:700;font-size:1.3125rem;margin-bottom:.5rem}.news-item__summary{margin:0 0 .75rem}.news-item h3{font-size:.8125rem;font-weight:700;color:var(--ink-2)}.news-item__why,.news-item__comment{border-left:3px solid var(--accent);border-radius:0;padding:.1rem 0 .1rem .9rem;margin-bottom:.75rem}.news-item__why p,.news-item__comment p{margin:0}.news-item__comment{border-left-color:var(--mark)}.news-item__comment h3{color:var(--mark-ink)}.news-item__sources ul{margin:.15rem 0 0;padding-left:1.1rem;font-size:.875rem;line-height:1.7}.issue__extra:empty{display:none}.issue__note{margin-top:2rem;font-size:.8125rem;color:var(--ink-2);border-top:1px solid var(--rule);padding-top:1rem}.pager{display:flex;justify-content:space-between;gap:1rem;margin-top:1.5rem}.pager a{display:grid;text-decoration:none;font-size:.875rem}.pager a span:first-child{font-weight:700}.pager a span:last-child{color:var(--ink-2)}.pager__next{text-align:right}.post{padding-block:2.5rem 4rem}.post>*{max-width:var(--measure)}.post__head{margin-bottom:2rem;padding-bottom:1.5rem;border-bottom:1px solid var(--rule)}.post__meta{display:flex;flex-wrap:wrap;gap:0 1rem;margin:0 0 .5rem;font-size:.875rem;color:var(--ink-2)}.post__title{font-family:var(--font-mincho);font-weight:700;font-size:clamp(1.625rem,3.4vw,2.25rem)}.post__lead{margin:.75rem 0 0;color:var(--ink-2)}.post__sign{text-align:right;color:var(--ink-2);font-size:.875rem}.tags{display:flex;flex-wrap:wrap;gap:.5rem;list-style:none;padding:0;margin:2rem 0 0}.tags li{font-size:.8125rem;color:var(--ink-2);border:1px solid var(--rule);border-radius:999px;padding:0 .7rem}.related{margin-top:3rem}.series{margin:0 0 2rem;border:1px solid var(--rule);border-left:3px solid var(--accent);border-radius:0 var(--radius)var(--radius)0;background:var(--surface)}.series__summary{display:flex;flex-wrap:wrap;align-items:baseline;gap:.25rem .75rem;padding:.75rem 1rem;cursor:pointer;list-style:none}.series__summary::-webkit-details-marker{display:none}.series__summary::after{content:'目次を開く';margin-left:auto;font-size:.8125rem;color:var(--accent)}.series[open] .series__summary::after{content:'閉じる'}.series__label{font-size:.75rem;font-weight:700;color:var(--accent)}.series__name{font-family:var(--font-mincho);font-weight:700}.series__count{font-size:.875rem;color:var(--ink-2)}.series__list{list-style:none;margin:0;padding:0 1rem .75rem;font-size:.9375rem}.series__list li{display:grid;grid-template-columns:4.25em 1fr;padding-block:.35rem;border-top:1px solid var(--rule)}.series__no{color:var(--ink-2);font-size:.875rem}.series__list li[aria-current=page]{font-weight:700}.series__list li[aria-current=page] .series__no{color:var(--accent)}.series__soon{color:var(--ink-2)}.series-pager{display:grid;grid-template-columns:1fr 1fr;gap:.75rem;margin-top:2.5rem}.series-pager a{display:grid;gap:.15rem;padding:.75rem 1rem;border:1px solid var(--rule);border-radius:var(--radius);background:var(--surface);text-decoration:none;color:var(--ink)}.series-pager a:hover{border-color:var(--accent)}.series-pager a span:first-child{font-size:.8125rem;color:var(--accent);font-weight:700}.series-pager a span:last-child{font-family:var(--font-mincho);font-weight:700}.series-pager__next{grid-column:2;text-align:right}@media(max-width:519px){.series-pager{grid-template-columns:1fr}.series-pager__next{grid-column:1}.series-pager>span:empty{display:none}}.series-pager__soon{margin-top:2.5rem;color:var(--ink-2);font-size:.9375rem}.prose{max-width:var(--measure)}.prose>:first-child{margin-top:0}.prose h2{font-family:var(--font-mincho);font-weight:700;font-size:1.375rem;margin:2.5rem 0 .75rem;padding-bottom:.35rem;border-bottom:1px solid var(--rule)}.prose h3{font-size:1.125rem;margin:2rem 0 .5rem}.prose p,.prose ul,.prose ol{margin:0 0 1.25rem}.prose li+li{margin-top:.25rem}.prose blockquote{margin:0 0 1.25rem;padding-left:1rem;border-left:3px solid var(--rule);border-radius:0;color:var(--ink-2)}.prose code{font-size:.9em;background:var(--accent-soft);padding:.1em .35em;border-radius:4px}.prose pre{overflow-x:auto;padding:1rem;border-radius:var(--radius);font-size:.875rem;line-height:1.6}.prose pre code{background:0 0;padding:0}.prose table{display:block;overflow-x:auto;border-collapse:collapse;margin-bottom:1.25rem;font-size:.9375rem}.prose th,.prose td{border-bottom:1px solid var(--rule);padding:.4rem .75rem;text-align:left}.prose hr{border:0;border-top:1px solid var(--rule);margin:2rem 0}.defs dt{font-weight:700;margin-top:.75rem}.defs dd{margin:0;color:var(--ink-2)}.ad{margin-block:2rem}.ad__label{margin:0 0 .25rem;font-size:.75rem;color:var(--ink-2)}.footer{border-top:1px solid var(--rule);background:var(--surface);font-size:.875rem}.footer__inner{display:flex;flex-wrap:wrap;gap:.5rem 2rem;align-items:baseline;padding-block:1.75rem}.footer__name{font-family:var(--font-mincho);font-weight:700;font-size:1.125rem;margin:0}.footer__links{display:flex;flex-wrap:wrap;gap:.25rem 1.25rem;list-style:none;margin:0;padding:0}.footer__links a{color:var(--ink-2)}.footer__copy{margin:0 0 0 auto;color:var(--ink-2)}@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}main{flex:1}