:root{
  --bg:#f7f8fa;--surface:#fff;--text:#20252b;--muted:#69717a;--line:#e2e6e9;
  --brand:#126b72;--brand-strong:#0d535a;--brand-soft:#e8f5f5;--accent:#2a8390;
  --warn:#a46a18;--warn-soft:#fff7e8;--info:#315f8d;--info-soft:#edf5fc;--note:#606a75;--note-soft:#f2f4f6;
  --radius:12px;--shadow:0 7px 24px rgba(25,40,44,.06);--content:1200px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP","Hiragino Kaku Gothic ProN",Meiryo,sans-serif;line-height:1.85}a{color:var(--brand-strong);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;height:auto}.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}.header-inner{max-width:var(--content);margin:auto;min-height:68px;padding:0 20px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:baseline;gap:9px;color:var(--text);font-weight:800;letter-spacing:.02em}.brand__short{font-size:24px;color:var(--brand-strong)}.brand__full{font-size:12px;color:var(--muted);font-weight:600}.nav{display:flex;gap:20px;margin-left:auto}.nav a{font-size:14px;color:var(--text);font-weight:650}.menu-toggle{display:none;margin-left:auto;border:0;background:none;font-size:24px}.container{max-width:var(--content);margin:0 auto;padding:28px 20px 64px}.section{margin:0 0 54px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:18px}.section-title{font-size:25px;line-height:1.35;margin:0;letter-spacing:.015em}.section-link{font-size:13px}.hero-intro{padding:26px 0 12px}.hero-intro h1{font-size:36px;margin:0 0 8px;line-height:1.35}.hero-intro p{margin:0;color:var(--muted)}.cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 2px 10px rgba(25,40,44,.025)}.card__image{display:block;aspect-ratio:4/3;background:#eef1f2;overflow:hidden}.card__image img{width:100%;height:100%;object-fit:cover;transition:transform .2s}.card:hover .card__image img{transform:scale(1.015)}.card__body{padding:15px}.card__title{font-size:15px;line-height:1.55;margin:0 0 7px;font-weight:750}.card__meta{font-size:12px;color:var(--muted);margin-bottom:9px}.chips{display:flex;flex-wrap:wrap;gap:6px}.chip{display:inline-flex;align-items:center;border-radius:999px;background:#f0f3f4;color:#526069;font-size:11px;padding:3px 8px}.rank-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.rank-item{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:12px;display:grid;grid-template-columns:36px 84px 1fr;gap:12px;align-items:center}.rank-no{font-size:20px;font-weight:800;color:var(--brand)}.rank-item img{width:84px;aspect-ratio:4/3;object-fit:cover;border-radius:7px}.rank-title{font-weight:700;line-height:1.5;font-size:14px}.search-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}.search-form{display:flex;gap:10px}.search-form input{flex:1;min-width:0;border:1px solid #cfd6da;border-radius:9px;padding:14px 15px;font:inherit;background:#fff}.button{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:9px;padding:12px 18px;background:var(--brand);color:#fff;font-weight:750;cursor:pointer}.button:hover{background:var(--brand-strong);text-decoration:none}.button--large{padding:15px 24px;font-size:16px}.tag-cloud{display:flex;flex-wrap:wrap;gap:9px}.tag-link{background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:7px 11px;color:var(--text);font-size:13px}.tag-link small{color:var(--muted);margin-left:4px}.category-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.category-link{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:18px;font-weight:750;color:var(--text)}.site-footer{border-top:1px solid var(--line);background:#fff}.footer-inner{max-width:var(--content);margin:auto;padding:34px 20px;display:flex;justify-content:space-between;gap:24px;color:var(--muted);font-size:12px}.footer-links{display:flex;gap:18px;flex-wrap:wrap}.breadcrumbs{font-size:12px;color:var(--muted);margin-bottom:20px}.article-layout{display:grid;grid-template-columns:minmax(0,820px) 300px;gap:34px;align-items:start}.article-shell{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:34px 42px;box-shadow:var(--shadow)}.article-header h1{font-size:34px;line-height:1.45;margin:0 0 12px;letter-spacing:.01em}.article-header__meta{font-size:12px;color:var(--muted);border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:24px}.article-hero{margin:0 0 24px;border-radius:10px;overflow:hidden;background:#eef1f2}.article-hero img{display:block;width:100%;max-height:620px;object-fit:contain}.lead{font-size:17px;line-height:2;margin:24px 0}.work-card{border:1px solid var(--line);border-radius:10px;padding:18px;margin:28px 0;background:#fbfcfc}.work-card__title{font-weight:800;margin:0 0 12px;font-size:17px}.work-data{display:grid;grid-template-columns:120px 1fr;margin:0}.work-data dt,.work-data dd{padding:8px 0;border-top:1px solid #edf0f1}.work-data dt{font-size:12px;color:var(--muted)}.work-data dd{margin:0;font-size:13px}.work-card__cta{margin-top:16px}.observed{font-size:11px;color:var(--muted);margin-left:6px}.toc{border:1px solid var(--line);border-radius:10px;background:#fbfcfc;margin:28px 0;padding:16px 18px}.toc__head{display:flex;justify-content:space-between;align-items:center;font-weight:800}.toc__toggle{border:0;background:none;color:var(--muted);cursor:pointer}.toc ol{margin:12px 0 0;padding-left:24px}.toc li{margin:4px 0;font-size:13px}.toc li.toc-l3{margin-left:18px}.article-body{font-size:16px}.article-body p{margin:0 0 1.35em}.article-body h2{font-size:25px;line-height:1.5;margin:2.5em 0 1em;padding:0 0 10px 15px;border-left:4px solid var(--brand);border-bottom:1px solid var(--line);letter-spacing:.015em}.article-body h3{font-size:20px;line-height:1.5;margin:2.1em 0 .8em;padding-left:12px;border-left:3px solid #78aeb3}.article-body h4{font-size:17px;line-height:1.5;margin:1.8em 0 .65em;position:relative;padding-left:18px}.article-body h4:before{content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--brand)}.article-body code{background:#f1f3f4;padding:1px 5px;border-radius:4px;font-size:.9em}.article-list{padding-left:1.4em;margin:0 0 1.5em}.callout{margin:24px 0;padding:16px 18px;border-left:4px solid;border-radius:7px;background:#f7f8f9}.callout__title{font-weight:800;font-size:13px;margin-bottom:5px}.callout__body{font-size:14px}.callout--point{border-color:var(--brand);background:var(--brand-soft)}.callout--info{border-color:var(--info);background:var(--info-soft)}.callout--caution{border-color:var(--warn);background:var(--warn-soft)}.callout--note{border-color:var(--note);background:var(--note-soft)}.article-image{margin:30px auto;text-align:center}.article-image img{border-radius:8px;max-height:700px;object-fit:contain;background:#f0f2f3}.article-image figcaption{font-size:11px;color:var(--muted);margin-top:6px}.article-gallery{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:30px 0}.article-gallery .article-image{margin:0}.sidebar{display:flex;flex-direction:column;gap:18px}.side-box{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:16px}.side-box h2{font-size:15px;margin:0 0 12px}.mini-list{display:flex;flex-direction:column;gap:10px}.mini-item{display:grid;grid-template-columns:64px 1fr;gap:9px;align-items:center}.mini-item img{width:64px;aspect-ratio:4/3;object-fit:cover;border-radius:6px}.mini-item a{font-size:12px;line-height:1.45;font-weight:700;color:var(--text)}.listing-header{margin:12px 0 24px}.listing-header h1{font-size:30px;margin:0 0 6px}.listing-header p{color:var(--muted);margin:0}.empty{padding:32px;background:#fff;border:1px solid var(--line);border-radius:10px;color:var(--muted)}
@media(max-width:980px){.cards{grid-template-columns:repeat(3,1fr)}.article-layout{grid-template-columns:1fr}.sidebar{display:grid;grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){.header-inner{min-height:58px}.brand__full{display:none}.menu-toggle{display:block}.nav{display:none;position:absolute;left:0;right:0;top:58px;background:#fff;border-bottom:1px solid var(--line);padding:16px 20px;flex-direction:column}.menu-open .nav{display:flex}.container{padding:20px 14px 48px}.hero-intro h1{font-size:27px}.cards{grid-template-columns:repeat(2,1fr);gap:11px}.card__body{padding:11px}.rank-list{grid-template-columns:1fr}.category-row{grid-template-columns:repeat(2,1fr)}.search-form{flex-direction:column}.article-shell{padding:24px 18px}.article-header h1{font-size:27px}.article-body h2{font-size:22px}.article-body h3{font-size:19px}.article-gallery{grid-template-columns:1fr}.sidebar{grid-template-columns:1fr}.footer-inner{flex-direction:column}.work-data{grid-template-columns:92px 1fr}}

.article-shell .cards{grid-template-columns:repeat(2,minmax(0,1fr))}
@media(max-width:760px){.article-shell .cards{grid-template-columns:1fr}}