:root{--bg:#fbfaf7;--fg:#222;--mut:#6b6b6b;--line:#e4e1da;--card:#fff;--acc:#c0392b;--code:#f2efe8}
@media (prefers-color-scheme:dark){:root{--bg:#18191b;--fg:#e6e4df;--mut:#9a978f;--line:#2f3033;--card:#222326;--acc:#ff7a66;--code:#26272b}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font-family:system-ui,-apple-system,"Hiragino Sans","Noto Sans JP",sans-serif;line-height:1.85;font-size:16px}
a{color:var(--acc);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:60rem;margin:0 auto;padding:0 16px}
.site-header{border-bottom:1px solid var(--line);background:var(--card);position:sticky;top:0;z-index:5}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;height:56px}
.logo{font-weight:800;font-size:1.15rem;color:var(--fg);letter-spacing:.02em}
.site-banner{margin-top:1rem}.site-banner img{display:block;width:100%;height:auto;border-radius:6px}
.site-header nav{display:flex;gap:1.1rem;font-size:.95rem;overflow-x:auto}.site-header nav a{color:var(--fg)}
main{padding:2rem 16px 4rem}
.hero{padding:2rem 0 1rem}.hero h1{font-size:2.2rem;margin:0}.hero p{color:var(--mut);margin:.3rem 0 0}
.sec{font-size:1.05rem;letter-spacing:.08em;color:var(--mut);border-bottom:1px solid var(--line);padding-bottom:.3rem;margin:2.5rem 0 1rem}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:16px}
.grid-lg{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}
.card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:10px;overflow:hidden;color:var(--fg);transition:transform .15s,box-shadow .15s}
.card:hover{text-decoration:none;transform:translateY(-2px);box-shadow:0 6px 18px rgba(0,0,0,.08)}
.card-img{aspect-ratio:16/10;background:var(--code);display:grid;place-items:center;overflow:hidden}
.card-img img{width:100%;height:100%;object-fit:cover}.card-img span{font-size:2.5rem;color:var(--mut)}
.card-body{padding:.7rem .9rem 1rem}.card-body h3{font-size:.98rem;line-height:1.5;margin:.1rem 0 0}
time{color:var(--mut);font-size:.82rem}
.pager,.prevnext{display:flex;justify-content:space-between;gap:1rem;margin-top:2rem}
.entry{max-width:46rem;margin:0 auto}.entry>h1{font-size:1.8rem;line-height:1.4;margin:.5rem 0}
.meta{display:flex;gap:.6rem;align-items:center;flex-wrap:wrap}
.tag{font-size:.8rem;border:1px solid var(--line);border-radius:99px;padding:.05rem .6rem}
.crumbs{font-size:.85rem;color:var(--mut)}
.content h1{font-size:1.4rem;border-left:4px solid var(--acc);padding-left:.6rem;margin-top:2.2rem}
.content h2{font-size:1.25rem;margin-top:2rem}
.content img,.content iframe{max-width:100%;height:auto;border-radius:6px}
.content iframe{width:100%;aspect-ratio:16/9}
.content table{border-collapse:collapse;display:block;overflow-x:auto}.content td,.content th{border:1px solid var(--line);padding:.25em .6em}
.content pre{background:var(--code);padding:1rem;border-radius:6px;overflow-x:auto;font-size:.85rem}
.content code{background:var(--code);padding:.1em .3em;border-radius:4px}
.prevnext a{flex:1;border:1px solid var(--line);border-radius:8px;padding:.7rem 1rem;background:var(--card);color:var(--fg)}
.prevnext a.r{text-align:right}.prevnext small{display:block;color:var(--mut)}
.archive{list-style:none;padding:0}.archive li{display:flex;gap:1rem;padding:.35rem 0;border-bottom:1px dashed var(--line)}
.terms{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:.6rem}.terms a{border:1px solid var(--line);border-radius:99px;padding:.3rem .9rem;background:var(--card)}.terms small{margin-left:.4rem;color:var(--mut)}
.site-footer{border-top:1px solid var(--line);background:var(--card);padding:2rem 0;font-size:.9rem}
.site-footer .wrap{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.site-footer ul{padding-left:1.1rem;margin:.3rem 0}
.site-footer h4{margin:0}.copy{grid-column:1/-1;color:var(--mut);margin:1rem 0 0}
@media (max-width:600px){.hero h1{font-size:1.7rem}.site-footer .wrap{grid-template-columns:1fr}.logo{font-size:1rem}.site-header nav{gap:.8rem;font-size:.85rem}}