:root{--muted:color-mix(in srgb, var(--color-text) 62%, var(--color-bg));--line:color-mix(in srgb, var(--color-text) 12%, var(--color-bg));--soft:color-mix(in srgb, var(--color-text) 4%, var(--color-bg));--accent-soft:color-mix(in srgb, var(--color-accent) 14%, var(--color-bg));--placeholder:linear-gradient(135deg, color-mix(in srgb, var(--color-primary) 30%, var(--color-bg)), color-mix(in srgb, var(--color-accent) 40%, var(--color-bg)));--radius:12px;--font:system-ui, -apple-system, "Segoe UI", "Hiragino Sans", "Noto Sans JP", sans-serif}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--color-bg);color:var(--color-text);font-family:var(--font);overflow-wrap:anywhere;margin:0;line-height:1.75}a{color:var(--color-primary)}img{max-width:100%;height:auto}:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.container{max-width:64rem;margin:0 auto;padding:0 16px}.narrow{max-width:42rem;margin:0 auto;padding:0 16px}.visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.skip-link{background:var(--color-bg);z-index:30;padding:8px 12px;position:absolute;top:0;left:-999px}.skip-link:focus{left:8px}h1,h2,h3{text-wrap:balance;line-height:1.4}.site-header{z-index:20;background:var(--color-bg);border-bottom:1px solid var(--line);position:sticky;top:0}.header-bar{z-index:2;background:var(--color-bg);position:relative}.header-inner{justify-content:space-between;align-items:center;gap:12px;min-height:56px;display:flex}.site-name{letter-spacing:.01em;color:var(--color-primary);font-size:1.1rem;font-weight:800;text-decoration:none}.site-name img{width:auto;height:32px;display:block}.header-actions{align-items:center;gap:4px;display:flex}.icon-link{font:inherit;cursor:pointer;background:0 0;border:0;padding:0}.icon-link,.lang-link,.menu summary{min-width:44px;min-height:44px;color:var(--color-text);border-radius:8px;justify-content:center;align-items:center;text-decoration:none;display:inline-flex}.lang-link{letter-spacing:.04em;font-size:.8rem;font-weight:700}.menu{position:relative}.menu summary{cursor:pointer;list-style:none}.menu summary::-webkit-details-marker{display:none}.menu-panel{background:var(--color-bg);border:1px solid var(--line);border-radius:var(--radius);width:min(18rem,100vw - 32px);box-shadow:0 12px 32px color-mix(in srgb, var(--color-text) 16%, transparent);padding:8px;position:absolute;top:calc(100% + 6px);right:0}.menu-panel ul{margin:0;padding:0;list-style:none}.menu-panel a{color:var(--color-text);border-radius:8px;padding:10px 12px;text-decoration:none;display:block}.menu-panel a:hover,.menu-panel a[aria-current]{background:var(--soft)}.menu-panel a[aria-current]{font-weight:700}.menu-sub{border-top:1px solid var(--line);font-size:.9rem;margin-top:6px!important;padding-top:6px!important}.menu-langs{border-top:1px solid var(--line);grid-auto-columns:1fr;grid-auto-flow:column;gap:6px;margin:6px 0 0;padding:10px 4px 4px;font-size:.9rem;display:grid}.menu-panel .lang-option{border:1px solid var(--line);min-height:40px;color:var(--color-text);border-radius:8px;justify-content:center;align-items:center;padding:0 12px;line-height:1;text-decoration:none;display:flex}.menu-panel .lang-option[aria-current]{background:var(--color-text);border-color:var(--color-text);color:var(--color-bg);font-weight:700}main{padding-bottom:48px}.search-dim{z-index:1;background:color-mix(in srgb, var(--color-text) 35%, transparent);position:fixed;inset:0}.search-drop{z-index:3;background:var(--color-bg);border-bottom:1px solid var(--line);box-shadow:0 16px 32px color-mix(in srgb, var(--color-text) 18%, transparent);position:absolute;top:100%;left:0;right:0}.search-form{max-width:64rem;margin:0 auto;padding:10px 16px}.search-field{background:var(--soft);border:1px solid var(--line);height:46px;color:var(--muted);border-radius:999px;align-items:center;gap:8px;padding:0 14px;display:flex}.search-field input{min-width:0;font:inherit;color:var(--color-text);background:0 0;border:0;outline:none;flex:1;font-size:16px}.search-field:focus-within{border-color:var(--color-primary)}.search-results{overscroll-behavior:contain;max-width:64rem;max-height:min(60vh,32rem);margin:0 auto;padding-bottom:8px;overflow-y:auto}.search-results ul{margin:0;padding:0;list-style:none}.search-results li a{color:var(--color-text);border-top:1px solid var(--line);gap:12px;padding:10px 16px;text-decoration:none;display:flex}.search-results li a:hover{background:var(--soft)}.search-results .thumb{border-radius:8px;flex:none;width:56px;height:56px}.search-results b{font-size:.925rem;line-height:1.45;display:block}.search-excerpt{color:var(--muted);margin-top:2px;font-size:.8rem;line-height:1.55;display:block}.search-results mark{background:color-mix(in srgb, var(--color-accent) 35%, var(--color-bg));color:inherit;border-radius:2px}.search-note{color:var(--muted);margin:0;padding:4px 16px 10px;font-size:.8rem}.chips{scrollbar-width:none;gap:8px;max-width:64rem;margin:0 auto;padding:12px 16px;list-style:none;display:flex;overflow-x:auto}.chips::-webkit-scrollbar{display:none}.chips a{border:1px solid var(--line);min-height:36px;color:var(--color-text);white-space:nowrap;border-radius:999px;flex:none;align-items:center;padding:0 14px;font-size:.875rem;text-decoration:none;display:inline-flex}.chips a[aria-current]{background:var(--color-primary);border-color:var(--color-primary);color:var(--color-bg);font-weight:700}.thumb{background:var(--placeholder);border-radius:var(--radius);display:block;overflow:hidden}.thumb img{object-fit:cover;width:100%;height:100%;display:block}.cat-label{color:var(--color-primary);font-size:.75rem;font-weight:700}.eyecatch{color:#fff;background:linear-gradient(150deg, var(--color-primary), color-mix(in srgb, var(--color-primary) 55%, var(--color-accent)));align-items:flex-end;min-height:13rem;margin-bottom:28px;display:flex;position:relative;overflow:hidden}.eyecatch.has-photo{aspect-ratio:4/3;width:100%;min-height:0;max-height:70vh}.eyecatch img{object-fit:cover;width:100%;height:100%;position:absolute;inset:0}.eyecatch.has-photo:after{content:"";background:linear-gradient(#0000 35%,#0009);position:absolute;inset:0}.eyecatch-text{z-index:1;width:100%;max-width:64rem;margin:0 auto;padding:28px 16px 22px;position:relative}.eyecatch h1{color:#fff;text-shadow:0 1px 12px #00000040;margin:0;font-size:1.75rem}.eyecatch p{opacity:.95;text-shadow:0 1px 8px #00000040;margin:4px 0 0;font-size:1rem}@media (width>=48rem){.eyecatch.has-photo{aspect-ratio:21/9}.eyecatch h1{font-size:2.5rem}.eyecatch p{font-size:1.15rem}}.section-head{justify-content:space-between;align-items:baseline;gap:12px;margin:0 0 12px;display:flex}.section-head h2{margin:0;font-size:1.15rem}.section-head a{font-size:.875rem;font-weight:600;text-decoration:none}.grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 12px;margin:0;padding:0;list-style:none;display:grid}@media (width>=48rem){.grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:28px 20px}}.card{color:var(--color-text);text-decoration:none;display:block}.card .thumb{aspect-ratio:1}@media (width>=48rem){.card .thumb{aspect-ratio:4/3}}.card h3{margin:6px 0 2px;font-size:.95rem;line-height:1.5}.card time{color:var(--muted);font-size:.75rem}.card:hover h3{color:var(--color-primary)}.page-head{padding:16px 0 8px}.page-head h1{margin:4px 0 6px;font-size:1.5rem}.page-head p{color:var(--muted);margin:0}.list-section{max-width:64rem;margin:0 auto;padding:8px 16px 0}.pagination{justify-content:center;align-items:center;gap:12px;margin:32px 0 0;font-size:.9rem;display:flex}.pagination a{border:1px solid var(--line);border-radius:999px;align-items:center;min-height:44px;padding:0 16px;text-decoration:none;display:inline-flex}.pagination span{color:var(--muted)}.about-box{border-radius:var(--radius);background:var(--accent-soft);max-width:64rem;margin:36px 16px 0;padding:18px}@media (width>=66rem){.about-box{margin:40px auto 0}}.about-box h2{margin:0 0 6px;font-size:1rem}.about-box p{margin:0 0 8px;font-size:.925rem}.about-box a{font-size:.9rem;font-weight:700;text-decoration:none}.link-list{margin:0;padding:0;list-style:none}.link-list li{border-bottom:1px solid var(--line)}.link-list a{color:var(--color-text);justify-content:space-between;gap:12px;padding:14px 0;text-decoration:none;display:flex}.link-list a span:last-child{color:var(--muted);font-variant-numeric:tabular-nums}.breadcrumbs{color:var(--muted);padding-top:12px;font-size:.78rem}.breadcrumbs ol{flex-wrap:wrap;gap:4px;margin:0;padding:0;list-style:none;display:flex}.breadcrumbs li+li:before{content:"›";margin-right:4px}.breadcrumbs a{color:var(--muted)}.article-head h1{margin:10px 0;font-size:1.5rem}@media (width>=48rem){.article-head h1{font-size:2rem}}.byline{color:var(--muted);flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:14px;font-size:.8rem;display:flex}.byline a{color:inherit}.avatar{background:var(--color-primary);object-fit:cover;border-radius:50%;flex:none;width:24px;height:24px}.hero{margin:0 -16px 18px}.hero img{width:100%;height:auto;display:block}@media (width>=44rem){.hero{margin:0 0 20px}.hero img{border-radius:var(--radius)}}.prose{font-size:1.0625rem;line-height:1.9}.prose h2{border-bottom:2px solid var(--color-primary);margin:2.4em 0 .8em;padding-bottom:6px;scroll-margin-top:72px;font-size:1.3rem}.prose h3{margin:1.8em 0 .6em;scroll-margin-top:72px;font-size:1.1rem}.prose img{border-radius:8px}.prose blockquote{border-left:4px solid var(--line);color:var(--muted);margin:1.2em 0;padding:4px 16px}.prose table{border-collapse:collapse;font-size:.9rem;display:block;overflow-x:auto}.prose th,.prose td{border:1px solid var(--line);padding:6px 10px}.toc{border:1px solid var(--line);border-radius:var(--radius);margin:20px 0;padding:14px 16px;font-size:.925rem}.toc-title{margin:0 0 4px;font-size:.875rem;font-weight:700}.toc ol{margin:0;padding-left:1.4em}.toc li{padding:3px 0}.toc a{text-decoration:none}.ad-disclosure{background:var(--accent-soft);border-radius:8px;margin:16px 0;padding:10px 12px;font-size:.85rem}.sources{font-size:.9rem}.related{background:var(--soft);margin-top:40px;padding:24px 0}.related-row{scroll-snap-type:x mandatory;scrollbar-width:thin;gap:12px;max-width:64rem;margin:0 auto;padding:0 16px 4px;scroll-padding-inline:16px;list-style:none;display:flex;overflow-x:auto}.related-row li{scroll-snap-align:start;flex:none;width:44%;max-width:15rem}.related-row .thumb{aspect-ratio:4/3}.related .section-head{max-width:64rem;margin:0 auto 12px;padding:0 16px}.author-box{gap:12px;margin:28px 0 0;font-size:.9rem;display:flex}.author-box .avatar{width:48px;height:48px}.author-box p{color:var(--muted);margin:2px 0 4px}.fixed h2{margin:2em 0 .6em;font-size:1.15rem}.fixed p,.fixed li{font-size:1rem}.fixed .updated{color:var(--muted);font-size:.85rem}.form label{margin:18px 0 6px;font-size:.925rem;font-weight:600;display:block}.form .optional{color:var(--muted);font-size:.8rem;font-weight:400}.form input,.form textarea{width:100%;font:inherit;color:var(--color-text);background:var(--color-bg);border:1px solid color-mix(in srgb, var(--color-text) 25%, var(--color-bg));border-radius:8px;min-height:48px;padding:12px;display:block}.form textarea{resize:vertical;min-height:10rem}.form .cf-turnstile{min-height:65px;margin:20px 0 0}.form button,.button{background:var(--color-primary);width:100%;min-height:52px;color:var(--color-bg);font:inherit;cursor:pointer;border:0;border-radius:999px;justify-content:center;align-items:center;margin-top:20px;font-weight:700;text-decoration:none;display:inline-flex}.form .note{color:var(--muted);margin-top:12px;font-size:.8rem}.site-footer{background:var(--color-text);color:color-mix(in srgb, var(--color-bg) 82%, var(--color-text));padding:36px 0 28px;font-size:.875rem}.site-footer a{color:inherit;text-decoration:none}.site-footer a:hover{color:var(--color-bg);text-decoration:underline}.footer-brand{border-bottom:1px solid color-mix(in srgb, var(--color-bg) 18%, var(--color-text));margin-bottom:20px;padding-bottom:20px}.site-footer .footer-name{color:var(--color-bg);font-size:1.05rem;font-weight:800}.footer-brand p{opacity:.8;margin:4px 0 0;font-size:.8rem}.footer-cols{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 20px;display:grid}@media (width>=48rem){.footer-cols{grid-template-columns:repeat(2,14rem);gap:24px 48px}}.footer-head{letter-spacing:.08em;color:var(--color-bg);opacity:.7;margin:0 0 6px;font-size:.72rem;font-weight:700}.footer-cols ul{margin:0;padding:0;list-style:none}.footer-cols a{padding:7px 0;display:block}.copyright{border-top:1px solid color-mix(in srgb, var(--color-bg) 18%, var(--color-text));opacity:.7;margin:28px 0 0;padding-top:16px;font-size:.75rem}@media (prefers-reduced-motion:no-preference){.card .thumb img{transition:transform .3s}.card:hover .thumb img{transform:scale(1.03)}}