@charset "UTF-8";
:root{color-scheme:light dark;--bg:#f2f5f4;--surface:#fff;--ink:#1c2a33;--muted:#566770;--link:#2347a6;--trend:#3b4fa3;--tool:#0b746f;--agent:#a8610b;--rule:#c7d2d4;--tint:#e9efef}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:"BIZ UDPGothic","BIZ UDGothic","Yu Gothic",Meiryo,sans-serif;font-size:18px;line-height:1.9}a{color:var(--link);text-underline-offset:.24em}button,input{font:inherit;color:inherit}button,a,input{touch-action:manipulation}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--trend);outline-offset:4px}button{cursor:pointer}a{overflow-wrap:anywhere}h1,h2,h3,p{margin:0}p+p{margin-top:1.2em}h1,h2,.brand,.footer-brand{font-family:"Zen Old Mincho","Yu Mincho",serif}h1{font-size:clamp(2rem,4.4vw,3.6rem);line-height:1.5;font-weight:700;letter-spacing:.025em;text-wrap:balance}h2{font-size:24px;line-height:1.5;font-weight:700;margin-bottom:1.2em}h3{font-size:20px;line-height:1.6}.wrap{width:min(1120px,calc(100% - 64px));margin-inline:auto}.skip{position:absolute;top:-90px;left:12px;padding:12px;background:var(--surface);z-index:20}.skip:focus{top:0}.header{display:grid;grid-template-columns:auto 1fr auto;gap:24px;align-items:center;padding-block:30px;border-bottom:1px solid var(--rule)}.brand{font-size:26px;font-weight:700;text-decoration:none;color:var(--ink);white-space:nowrap;display:flex;align-items:center;min-height:44px}.tagline{font-size:13px;color:var(--muted)}.search{max-width:280px;min-width:0}.search label{font-size:12px;color:var(--muted);display:block}.search>div{display:flex;border-bottom:1px solid var(--muted)}.search input{min-width:0;width:185px;border:0;background:transparent;font-size:14px;min-height:44px;padding:8px 0}.search button{border:0;background:transparent;min-width:48px;min-height:44px;font-size:14px}.search button:hover{color:var(--link)}.wave{display:block;width:100%;height:70px;overflow:visible;color:var(--trend)}.wave path{fill:none;stroke:currentColor;stroke-width:1.5;vector-effect:non-scaling-stroke;stroke-dasharray:1800;stroke-dashoffset:0;animation:observe .6s ease-out}.hero{padding-top:25px;padding-bottom:72px}.hero-meta{display:flex;gap:24px;align-items:center;margin-block:25px 22px;font-size:14px;color:var(--muted)}.section-label{display:flex;gap:10px;align-items:center}.section-label:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--trend)}.edition{margin-left:auto}.lead{font-size:19px;line-height:1.85;margin-top:24px;letter-spacing:.015em}.hero-note{color:var(--muted);font-size:15px;margin-top:24px}.section-head{display:flex;justify-content:space-between;align-items:baseline;gap:20px}.section-head h2{margin-bottom:20px}.count{font-size:14px;color:var(--muted)}.observations{padding:32px 0 40px;border-block:1px solid var(--rule)}.filters{display:flex;flex-wrap:wrap;gap:8px}.filters button{min-height:44px;padding:8px 15px;border:1px solid var(--rule);background:transparent;font-size:14px;border-radius:2px}.filters button[aria-pressed=true]{color:var(--surface);background:var(--ink);border-color:var(--ink)}#search-status{font-size:15px;color:var(--muted);margin-top:24px}#article-list{margin-top:16px}.article-row{display:grid;grid-template-columns:105px 120px 1fr;gap:16px;padding:20px 0;border-top:1px solid var(--rule)}.reading{max-width:680px}.intro{margin-top:70px}.tracks{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:40px;margin-top:42px}.track{border-top:2px solid var(--rule);padding-top:22px;position:relative}.track-mark{display:block;width:24px;height:3px;background:var(--trend);position:absolute;top:-2px}.tool .track-mark{background:var(--tool)}.agent .track-mark{background:var(--agent)}.track h3{font-size:16px;color:var(--muted);font-weight:400}.track-question{font-family:"Zen Old Mincho","Yu Mincho",serif;font-size:26px;font-weight:700;line-height:1.5;margin-top:14px}.track p:last-child{font-size:16px;line-height:1.95;margin-top:20px}.ad-space{margin:72px auto;padding-top:12px;min-height:320px;width:100%;max-width:970px;text-align:center;border-top:1px solid var(--rule)}.ad-label{font-size:12px;color:var(--muted);display:block;margin-bottom:12px}.adsbygoogle{min-height:280px}.guide{padding:40px 48px;background:var(--surface);box-sizing:content-box}.guide h2:not(:first-child){margin-top:48px}.application{margin-block:36px;padding:26px;background:var(--tint);border-left:3px solid var(--tool)}.application h3{font-size:18px;margin-bottom:14px}.application p{font-size:16px}.channel-band{display:flex;justify-content:space-between;align-items:center;gap:30px;border-block:1px solid var(--rule);margin-top:72px;padding:32px 0}.channel-band h2{margin-bottom:14px}.channel-band p{font-size:15px;color:var(--muted)}.channel-band>a{min-height:44px;padding:12px 0;white-space:nowrap}.external{font-family:sans-serif;margin-left:.35em;font-size:.8em}.footer{padding-block:40px 30px;border-top:1px solid var(--rule);font-size:14px;color:var(--muted)}.footer-brand{font-size:24px;color:var(--ink);margin-bottom:20px}.footer nav{display:flex;gap:6px 28px;flex-wrap:wrap;margin-block:20px}.footer nav a{display:inline-flex;align-items:center;min-height:44px}.footer small{font-size:12px}.about{margin-block:25px 70px}.about h1{font-size:36px;margin-top:24px}.about h2{margin-top:42px}.about .lead{margin-bottom:38px}.about a{display:inline-flex;align-items:center;min-height:44px}
@keyframes observe{from{stroke-dashoffset:1800}to{stroke-dashoffset:0}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;scroll-behavior:auto!important}}
@media(max-width:1023px){.header{grid-template-columns:1fr auto;gap:8px 20px}.tagline{grid-row:2;grid-column:1/-1}.search{grid-row:1;grid-column:2}.search input{width:150px}.edition{display:none}.guide{box-sizing:border-box;max-width:760px}.tracks{gap:28px}.wrap{width:calc(100% - 40px)}}
@media(max-width:650px){body{font-size:17px}.wrap{width:calc(100% - 40px)}.header{display:flex;flex-wrap:wrap;padding-block:20px;gap:6px}.brand{font-size:25px}.tagline{width:100%;font-size:12px}.search{margin-top:12px;max-width:none;width:100%}.search>div{width:100%}.search input{width:100%;flex:1;font-size:14px}.search label{position:absolute;clip-path:inset(50%);width:1px;height:1px;overflow:hidden}.search button{font-size:14px}.wave{height:56px}.hero{padding-top:16px;padding-bottom:42px}.hero-meta{margin-block:20px 18px;font-size:12px}h1{font-size:32px;line-height:1.5;letter-spacing:0}h2{font-size:21px}.lead{font-size:18px;line-height:1.85;margin-top:24px}.hero-note{font-size:14px;line-height:1.9}.section-head{display:block}.count{display:none}.observations{padding-block:25px 30px}.filters{gap:7px}.filters button{padding-inline:11px;font-size:13px}#search-status{font-size:14px}.intro{margin-top:44px}.tracks{grid-template-columns:1fr;gap:30px;margin-top:30px}.track{padding-top:20px}.track-question{font-size:25px}.track p:last-child{font-size:16px}.ad-space{margin-block:48px;min-height:320px}.guide{padding:28px 20px;width:calc(100% + 40px);margin-left:-20px}.application{padding:20px 16px}.application h3{font-size:17px}.channel-band{display:block;margin-top:44px;padding-block:28px}.channel-band>a{display:inline-flex;align-items:center;margin-top:16px;white-space:normal}.footer nav{display:block}.footer nav a{display:flex;width:fit-content;margin-bottom:8px;max-width:100%}.about h1{font-size:26px}.article-row{grid-template-columns:1fr;gap:5px}.search input{max-width:100%}}
@media(prefers-color-scheme:dark){:root{--bg:#141c21;--surface:#1a242a;--ink:#e3eaec;--muted:#9aaab2;--link:#a7baff;--trend:#a8b6ff;--tool:#75cec7;--agent:#efbd78;--rule:#46555e;--tint:#203437}}
.latest{padding:25px 0 42px}.latest>p:first-of-type{font-size:15px;color:var(--muted)}.latest time{font-size:15px}.latest h2{font-size:28px;margin:20px 0}.latest a{display:inline-block;min-height:44px}.wave.agent{color:var(--agent)}.wave.tool{color:var(--tool)}.article-layout{display:grid;grid-template-columns:minmax(0,680px) minmax(0,300px);gap:60px;margin-bottom:70px}.article-body{min-width:0}.article-head h1{font-size:36px;line-height:1.45;margin-top:24px}.article-meta{display:flex;gap:25px;font-size:14px;color:var(--muted)}.article-head .lead p+p{margin-top:.35em}.article-toc{margin-top:36px;padding-block:20px;border-block:1px solid var(--rule);display:flex;flex-direction:column}.article-toc a{min-height:44px;display:flex;align-items:center}.article-section{margin-top:52px;scroll-margin-top:25px}.article-section h2{font-size:24px}.article-section p{line-height:1.9}.article-section.application{padding:24px}.application-label{font-weight:bold;font-size:14px;margin-bottom:20px}.article-side{padding-top:35px;min-width:0}.video-frame{min-height:380px;display:flex;flex-direction:column;justify-content:center;padding:28px;background:var(--surface);border-top:3px solid var(--agent)}.video-frame h2{font-size:22px}.video-frame a{margin-top:25px;display:flex;align-items:center;min-height:44px}.video-frame iframe{border:0;max-width:100%;height:auto;aspect-ratio:9/16}.article-side .ad-space{position:sticky;top:20px}.sources{padding-top:26px;border-top:1px solid var(--rule)}.sources ul{list-style:none;padding:0}.sources li{padding:24px 0;border-bottom:1px solid var(--rule)}.sources li>a{display:flex;align-items:center;min-height:44px}.sources li p{font-size:14px;color:var(--muted);margin-top:12px}.sources .direct-source{font-size:14px;word-break:break-all;margin-top:12px}.information-date{font-size:14px;color:var(--muted);margin-top:35px}.article-navigation a{display:inline-flex;align-items:center;min-height:44px}
@media(max-width:1023px){.article-layout{display:block}.article-body{max-width:680px;margin:auto}.article-side{max-width:680px;margin:auto}.article-side .ad-space{position:static}.article-head h1{font-size:30px}.video-frame{min-height:230px}.article-section h2{font-size:23px}}
@media(max-width:650px){.article-head h1{font-size:26px}.article-section h2{font-size:21px}.article-head .lead{font-size:18px}.article-section.application{padding:20px 16px}.latest h2{font-size:24px}.article-layout{margin-bottom:44px}}