:root{--ink:#1a1a1a;--text:#2a2a2a;--sub:#555;--muted:#6b6b6b;--rule:#ddddd6;--navy:#18264a;--violet:#4b32b0;--violet-dark:#2e1c7a;--paper:#f4f3ef;--placeholder:#2b3550;--serif:"Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;--sans:"Noto Sans JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;--wide:1200px;--measure:720px;--gutter:32px}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{color:var(--text);font-family:var(--sans);font-feature-settings:"palt" 0;overflow-wrap:anywhere;background:#fff;margin:0;font-size:16px;line-height:1.8}img{max-width:100%;height:auto}a{color:var(--ink);text-decoration:none}a:hover{color:var(--violet);text-underline-offset:4px;text-decoration:underline}:focus-visible{outline:2px solid var(--violet);outline-offset:2px}.sr-only{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.skip-link{background:var(--navy);color:#fff;z-index:10;padding:8px 16px;position:absolute;top:0;left:-9999px}.skip-link:focus{color:#fff;top:16px;left:16px}.wrap{max-width:var(--wide);padding-left:var(--gutter);padding-right:var(--gutter);margin:0 auto}.serif{font-family:var(--serif)}.meta{color:var(--muted);font-size:13px;line-height:1.6}.link{color:var(--violet)}.site-header{border-bottom:1px solid var(--ink);background:#fff}.header-top{border-bottom:1px solid var(--rule);color:var(--muted);flex-wrap:wrap;justify-content:space-between;gap:4px 24px;min-height:38px;padding:8px 0;font-size:13px;display:flex}.header-main{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px 40px;padding:18px 0 10px;display:flex}.logo{font-family:var(--serif);letter-spacing:.01em;color:var(--navy);font-size:32px;font-weight:700;line-height:1.2}.logo:hover{color:var(--navy);text-decoration:none}.header-actions{align-items:center;gap:8px;display:flex}.icon-button{width:44px;height:44px;color:var(--ink);justify-content:center;align-items:center;display:inline-flex}.button-small{align-items:center;height:44px;padding:0 18px;font-size:14px;display:inline-flex;color:#fff!important;text-decoration:none!important}.nav{flex-wrap:wrap;align-items:center;gap:0 26px;font-size:15px;font-weight:500;display:flex}.nav a{border-bottom:2px solid #0000;padding:10px 0}.nav a:hover{border-bottom-color:var(--rule);text-decoration:none}.nav a[aria-current=page]{border-bottom-color:var(--ink)}.feature{flex-wrap:wrap;align-items:flex-end;gap:32px 48px;padding-top:40px;padding-bottom:56px;display:flex}.feature-media{aspect-ratio:16/9;background:var(--placeholder);flex:3 560px;min-width:0;display:block;overflow:hidden}.feature-media img{object-fit:cover;width:100%;height:100%;display:block}.feature-body{flex-direction:column;flex:2 340px;gap:16px;min-width:0;display:flex}.feature-title{font-family:var(--serif);color:var(--ink);margin:0;font-size:clamp(26px,3vw,34px);font-weight:700;line-height:1.5}.feature-lead{color:#444;margin:0}.band{flex-wrap:wrap;gap:24px 64px;padding-bottom:64px;display:flex}.band>h2{font-family:var(--serif);color:var(--ink);flex:160px;margin:0;font-size:20px;font-weight:700;line-height:1.5}.band>.band-body{border-top:1px solid var(--ink);flex:999 640px;min-width:0}.post-list{margin:0;padding:0;list-style:none}.post-row{border-bottom:1px solid var(--rule);flex-wrap:wrap;gap:4px 24px;padding:20px 0;display:flex}.post-row .meta{flex:0 0 150px;padding-top:4px}.post-row a{font-family:var(--serif);color:var(--ink);flex:400px;font-size:19px;font-weight:600;line-height:1.6}.more{color:var(--violet);margin-top:20px;font-size:15px;display:inline-block}.substance-grid{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:48px;display:grid}.substance-grid a{border-bottom:1px solid var(--rule);flex-direction:column;padding:18px 0;display:flex}.substance-grid .name{font-family:var(--serif);color:var(--ink);font-size:20px;font-weight:700}.substance-grid .desc{color:var(--muted);font-size:14px}.substance-grid a:hover .name{color:var(--violet)}@media (width<=640px){.substance-grid{grid-template-columns:minmax(0,1fr)}}.topics{flex-wrap:wrap;gap:14px 32px;padding-top:18px;font-size:17px;display:flex}.topics .count{color:#8a8a8a;font-size:14px}.newsletter{background:var(--paper)}.newsletter .wrap{flex-wrap:wrap;align-items:center;gap:24px 64px;padding-top:56px;padding-bottom:56px;display:flex}.newsletter-copy{flex:420px;min-width:0}.newsletter-copy h2{font-family:var(--serif);color:var(--ink);margin:0 0 8px;font-size:24px}.newsletter-copy p{color:#444;margin:0}.nl-form{flex-wrap:wrap;flex:420px;gap:10px;min-width:0;display:flex}.nl-form input[type=email],.field input,.field textarea{min-width:0;height:52px;color:var(--ink);background:#fff;border:1px solid #bdbdb5;border-radius:2px;flex:240px;padding:0 16px;font-family:inherit;font-size:16px}.button{background:var(--navy);color:#fff;cursor:pointer;border:none;border-radius:2px;justify-content:center;align-items:center;height:52px;padding:0 28px;font-family:inherit;font-size:15px;font-weight:700;display:inline-flex}.button:hover{background:#0f1a36}.nl-form .hp{position:absolute;left:-9999px}.nl-note{color:var(--muted);flex-basis:100%;margin:0;font-size:13px}.nl-inline{background:var(--paper);flex-direction:column;gap:12px;padding:28px;display:flex}.nl-inline .nl-form{flex:none}.nl-inline .title{font-family:var(--serif);color:var(--ink);font-size:19px;font-weight:700;line-height:1.6}.site-footer{background:var(--navy);color:#d5d9e2;margin-top:24px}.site-footer .wrap{flex-direction:column;gap:28px;padding-top:48px;padding-bottom:36px;font-size:14px;display:flex}.footer-top{flex-wrap:wrap;justify-content:space-between;gap:24px 64px;display:flex}.footer-top p{flex:420px;margin:0;line-height:1.9}.footer-top .footer-name{font-family:var(--serif);color:#fff;margin-bottom:6px;font-size:24px;font-weight:700;display:block}.site-footer a{color:#d5d9e2}.site-footer a:hover{color:#fff}.footer-nav{flex-wrap:wrap;align-content:flex-start;gap:8px 24px;display:flex}.footer-legal{color:#aeb5c6;border-top:1px solid #2e3b60;margin:0;padding-top:20px;font-size:12px;line-height:1.9}.article{max-width:var(--measure);flex-direction:column;gap:28px;margin:0 auto;padding:56px 24px 80px;display:flex}.article-head{flex-direction:column;gap:18px;display:flex}.article-title{font-family:var(--serif);color:var(--ink);margin:0;font-size:clamp(26px,4vw,36px);font-weight:700;line-height:1.55}.article-lead{color:#444;margin:0;font-size:18px;line-height:1.9}.byline{border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);flex-wrap:wrap;gap:6px 20px;padding:14px 0;display:flex}.byline a{color:var(--ink)}.hero-figure{margin:0}.hero-figure img{aspect-ratio:16/9;object-fit:cover;background:var(--placeholder);width:100%;display:block}.prose{color:var(--text);font-size:17px;line-height:2}.prose>*{margin:0 0 1.4em}.prose h2{font-family:var(--serif);color:var(--ink);margin:2.2em 0 .8em;font-size:24px;line-height:1.6}.prose h3{font-family:var(--serif);color:var(--ink);margin:1.8em 0 .6em;font-size:20px;line-height:1.6}.prose h4{color:var(--ink);margin:1.6em 0 .4em;font-size:17px}.prose a{color:var(--violet);text-underline-offset:3px;text-decoration:underline;text-decoration-thickness:1px}.prose a:hover{color:var(--violet-dark)}.prose strong{color:var(--ink)}.prose mark{color:inherit;background:linear-gradient(#0000 62%,#e4ddfa 62%);padding:0 1px}.prose ul,.prose ol{padding-left:1.4em}.prose li{margin:.3em 0}.prose blockquote{border-left:2px solid var(--ink);color:#444;margin-left:0;padding:2px 0 2px 20px}.prose figure{margin:2em 0}.prose img{width:100%;height:auto;display:block}.prose img+em,.prose p>em:only-child{color:var(--muted);font-size:13px;font-style:normal;line-height:1.6;display:block}.prose hr{border:0;border-top:1px solid var(--rule);margin:2.4em 0}.prose .table-wrap{margin:2em 0;overflow-x:auto}.prose table{border-collapse:collapse;width:100%;min-width:520px;font-size:15px;line-height:1.7}.prose th,.prose td{text-align:left;vertical-align:top;border-bottom:1px solid var(--rule);padding:12px 14px}.prose thead th{border-bottom:1px solid var(--ink);color:var(--ink);font-weight:700}.prose .video,.prose .embed{aspect-ratio:16/9;background:#000;width:100%;position:relative}.prose .embed.short{aspect-ratio:auto;background:0 0;height:232px}.prose .video iframe,.prose .embed iframe{border:0;width:100%;height:100%;position:absolute;inset:0}.prose .box{padding:18px 22px;font-size:14px;line-height:1.9}.prose .box>:first-child{margin-top:0}.prose .box>:last-child{margin-bottom:0}.prose .box p{margin:0 0 .6em}.prose .box-sources{border-top:1px solid var(--ink);border-bottom:1px solid var(--rule);color:#444;padding-left:0;padding-right:0}.prose .box-alert{background:var(--paper);color:#444}.prose .box-note{border-left:2px solid var(--ink);padding-top:4px;padding-bottom:4px}.linkcard{border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);align-items:center;gap:16px;padding:14px 0;display:flex;color:var(--ink)!important;text-decoration:none!important}.linkcard:hover .linkcard-title{color:var(--violet)}.linkcard img{aspect-ratio:16/9;object-fit:cover;flex:0 0 120px;width:120px}.linkcard-body{flex-direction:column;gap:2px;min-width:0;display:flex}.linkcard-label{color:var(--muted);font-size:12px}.linkcard-title{font-family:var(--serif);font-size:16px;font-weight:600;line-height:1.6}.refs{border-top:1px solid var(--ink);padding-top:20px}.refs h2{color:var(--ink);margin:0 0 8px;font-size:15px}.small-print{color:var(--muted);margin:0;font-size:13px;line-height:1.9}.author-box{border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);gap:20px;padding:24px 0;font-size:14px;line-height:1.85;display:flex}.author-box img{object-fit:cover;border-radius:50%;flex-shrink:0;width:64px;height:64px}.author-box .name{font-family:var(--serif);color:var(--ink);font-size:17px;font-weight:700}.related h2{font-family:var(--serif);color:var(--ink);margin:0 0 6px;font-size:18px}.related a{border-bottom:1px solid var(--rule);padding:14px 0;font-size:16px;line-height:1.7;display:block}.related .label{color:var(--muted);margin-right:.8em;font-size:13px}.page-head{padding-top:48px;padding-bottom:24px}.page-head h1{font-family:var(--serif);color:var(--ink);margin:0;font-size:clamp(28px,4vw,40px);line-height:1.4}.page-head p{color:var(--muted);margin:8px 0 0}.archive{padding-bottom:72px}.archive .post-list{border-top:1px solid var(--ink)}.pagination{flex-wrap:wrap;align-items:center;gap:8px;margin-top:32px;font-size:15px;display:flex}.pagination a,.pagination span{justify-content:center;align-items:center;min-width:44px;height:44px;padding:0 10px;display:inline-flex}.pagination [aria-current=page]{border-bottom:2px solid var(--ink);font-weight:700}.substance{flex-wrap:wrap;gap:48px 80px;padding-top:56px;padding-bottom:80px;display:flex}.substance-aside{flex-direction:column;flex:300px;gap:20px;min-width:0;display:flex}.substance-aside h1{font-family:var(--serif);color:var(--ink);margin:0;font-size:44px;font-weight:700;line-height:1.3}.substance-aside .en{color:var(--muted);margin-top:-12px;font-size:15px}.facts{border-top:1px solid var(--ink);margin:0;font-size:14px;line-height:1.75}.facts div{border-bottom:1px solid var(--rule);padding:12px 0}.facts dt{color:var(--muted);font-size:12px}.facts dd{color:var(--ink);margin:0}.substance-main{flex:999 560px;min-width:0;max-width:680px}.substance-lead{font-family:var(--serif);color:var(--ink);margin:0 0 1.6em;font-size:21px;line-height:1.9}.dated-list a{border-bottom:1px solid var(--rule);flex-wrap:wrap;gap:2px 20px;padding:14px 0;font-size:16px;line-height:1.7;display:flex}.dated-list .meta{flex:0 0 96px;padding-top:2px}.dated-list .t{flex:300px}.form{flex-direction:column;gap:20px;max-width:640px;display:flex}.field{flex-direction:column;gap:6px;display:flex}.field label{color:var(--ink);font-size:14px;font-weight:700}.field input{width:100%}.field textarea{width:100%;height:220px;padding:12px 16px;line-height:1.8}@media (width<=640px){:root{--gutter:20px}.post-row .meta{flex-basis:100%}.post-row a{font-size:17px}.article{padding-top:32px}}[data-results] mark{color:inherit;background:#e4ddfa;padding:0 1px}.cat{color:var(--violet);font-weight:700}a.cat:hover{color:var(--violet-dark)}.kicker{color:var(--muted);font-size:13px;line-height:1.5}.thumb-empty{background:var(--placeholder);aspect-ratio:16/9;display:block}.top-stories{border-bottom:1px solid var(--ink);flex-wrap:wrap;gap:32px 40px;padding:32px 0 40px;display:flex}.lead-story{flex-direction:column;flex:2 560px;gap:12px;min-width:0;display:flex}.lead-story .media{aspect-ratio:16/9;background:var(--placeholder);display:block;overflow:hidden}.lead-story .media img{object-fit:cover;width:100%;height:100%;display:block}.lead-story h1{font-family:var(--serif);color:var(--ink);margin:0;font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.45}.lead-story p{color:#444;margin:0}.secondary-stories{flex-direction:column;flex:340px;min-width:0;display:flex}.thumb-row{border-bottom:1px solid var(--rule);color:var(--ink);align-items:flex-start;gap:16px;padding:18px 0;display:flex}.thumb-row:hover{text-decoration:none}.thumb-row:hover .headline{color:var(--violet)}.secondary-stories .thumb-row:first-child{padding-top:0}.secondary-stories .thumb-row:last-child{border-bottom:0;padding-bottom:0}.thumb-row img,.thumb-row .thumb-empty{aspect-ratio:16/9;object-fit:cover;flex:0 0 128px;width:128px;display:block}.thumb-text{flex-direction:column;gap:4px;min-width:0;display:flex}.thumb-text .kicker{font-size:12px}.headline{font-family:var(--serif);color:var(--ink);font-size:16px;font-weight:600;line-height:1.55}.excerpt{color:var(--muted);-webkit-line-clamp:2;-webkit-box-orient:vertical;font-size:14px;line-height:1.7;display:-webkit-box;overflow:hidden}.with-thumbs{margin:0;padding:0;list-style:none}.with-thumbs .thumb-row img,.with-thumbs .thumb-row .thumb-empty{flex-basis:200px;width:200px}.with-thumbs .headline{font-size:18px}@media (width<=640px){.with-thumbs .thumb-row img,.with-thumbs .thumb-row .thumb-empty{flex-basis:112px;width:112px}.with-thumbs .excerpt{display:none}.with-thumbs .headline{font-size:16px}}.nl-strip{border-bottom:1px solid var(--rule);flex-wrap:wrap;align-items:center;gap:16px 40px;padding:28px 0;display:flex}.nl-strip-copy{flex:380px;min-width:0}.nl-strip h2{font-family:var(--serif);color:var(--ink);margin:0;font-size:20px;font-weight:700;line-height:1.5}.nl-strip .nl-form input[type=email],.nl-strip .button{height:48px}.block-head{border-bottom:2px solid var(--ink);justify-content:space-between;align-items:baseline;gap:12px;padding-bottom:10px;display:flex}.block-head h2{font-family:var(--serif);color:var(--ink);margin:0;font-size:21px;line-height:1.4}.block-head a{color:var(--violet);white-space:nowrap;font-size:14px}.split{border-bottom:1px solid var(--ink);flex-wrap:wrap;gap:40px 56px;padding:40px 0 48px;display:flex}.split-last{border-bottom:0;padding-bottom:64px}.split-main{flex:2 560px;min-width:0}.split-side{flex:320px;min-width:0}.split .post-row .meta{white-space:nowrap;flex-basis:150px}.split .post-row a{font-size:17px}.side-link{border-bottom:1px solid var(--rule);flex-direction:column;padding:16px 0;display:flex}.side-link .t{font-family:var(--serif);color:var(--ink);font-size:18px;font-weight:700}.side-link:hover{text-decoration:none}.side-link:hover .t{color:var(--violet)}.ranking{margin:0;padding:0;list-style:none}.ranking li{border-bottom:1px solid var(--rule);gap:14px;padding:14px 0;font-size:15px;line-height:1.6;display:flex}.ranking .n{font-family:var(--serif);color:#bdbdb5;min-width:14px;font-size:20px;font-weight:700;line-height:1.3}.sections{border-bottom:1px solid var(--ink);grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:40px;padding:40px 0 48px;display:grid}.section-lead{border-bottom:1px solid var(--rule);padding:16px 0 12px;display:block}.section-lead img,.section-lead .thumb-empty{aspect-ratio:16/9;object-fit:cover;width:100%;margin-bottom:10px;display:block}.section-lead .headline{font-size:17px}.section-lead:hover{text-decoration:none}.section-lead:hover .headline{color:var(--violet)}.section-item{border-bottom:1px solid var(--rule);padding:12px 0;font-size:15px;line-height:1.6;display:block}.about-box{background:var(--paper);align-self:flex-start;padding:28px}.about-box h2{font-family:var(--serif);color:var(--ink);margin:0 0 10px;font-size:20px}.about-box p{margin:0 0 12px;font-size:15px;line-height:1.85}.episode .episode-body{flex-direction:column;flex:400px;gap:6px;min-width:0;display:flex}.episode .episode-body>*{flex:none}.episode .episode-body>a{font-family:var(--serif);color:var(--ink);font-size:18px;font-weight:600;line-height:1.6}.episode .episode-body p{margin:0}.episode .episode-theme{color:var(--ink);font-size:15px;line-height:1.8}.episode .episode-points{color:var(--sub);margin:0;padding-left:1.2em;font-size:14px;line-height:1.8}.episode .episode-points li{margin:2px 0}.episode audio{width:100%;max-width:480px;height:40px;margin-top:6px}@media (width<=640px){.logo{font-size:24px}.header-top span:last-child{display:none}.header-main{flex-wrap:nowrap;gap:8px;padding-top:14px}.header-actions{flex-shrink:0;gap:0}.button-small{padding:0 12px;font-size:13px}.button-small .long{display:none}.lead-story p{-webkit-line-clamp:3;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.split .post-row .meta{flex-basis:100%}.nav{white-space:nowrap;scrollbar-width:none;margin:0 calc(-1 * var(--gutter));padding:0 var(--gutter);flex-wrap:nowrap;gap:0 16px;font-size:14px;overflow-x:auto}}.toc{border-top:1px solid var(--ink);border-bottom:1px solid var(--rule);padding:4px 0 12px}.toc summary{cursor:pointer;color:var(--ink);justify-content:space-between;align-items:center;padding:12px 0 8px;font-size:15px;font-weight:700;list-style:none;display:flex}.toc summary::-webkit-details-marker{display:none}.toc summary:after{content:"閉じる";color:var(--muted);font-size:13px;font-weight:400}.toc details:not([open]) summary:after{content:"開く"}.toc ol{margin:0;padding-left:1.5em;font-size:15px;line-height:1.7}.toc>details>ol>li{padding:5px 0}.toc ol ol{margin-top:4px;padding-left:.2em;font-size:14px;list-style:none}.toc ol ol li{padding:2px 0}.toc ol ol li:before{content:"– ";color:var(--muted)}.toc a{color:var(--text)}.toc a:hover{color:var(--violet)}.prose h2,.prose h3{scroll-margin-top:16px}html{scroll-behavior:smooth}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}.prose-with-toc{flex-direction:column;display:flex}.prose-with-toc>*{order:2}.prose-with-toc>p:first-child{order:0}.prose-with-toc>.toc{order:1;margin:.4em 0 2.2em}.prose .toc a{color:var(--text);text-decoration:none}.prose .toc a:hover{color:var(--violet);text-decoration:underline}.prose .toc li,.prose .toc ol{margin:0}.prose .toc ol ol{margin-top:4px}