:root{--ink:#222;--ink2:#555;--mute:#6a6a6a;--line:#ebebeb;--soft:#f7f7f7;--red:#D7263D;--red-d:#B81E33;--r:14px;--sh:0 1px 2px rgba(0,0,0,.06),0 6px 16px rgba(0,0,0,.06)}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;font:16px/1.6 Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Hiragino Sans","Noto Sans JP",sans-serif;color:var(--ink);background:#fff;-webkit-font-smoothing:antialiased}
a{color:var(--ink);text-underline-offset:3px}a:hover{color:var(--red)}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:6px}
h1,h2,h3{font-weight:650;letter-spacing:-.02em;line-height:1.2;color:var(--ink)}
h1{font-size:2.4rem;margin:.2rem 0 .8rem}h2{font-size:1.45rem;margin:2.6rem 0 .8rem}
nav,main,footer>div{max-width:1120px;margin:0 auto;padding:0 24px}
header{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.96);backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid var(--line)}
nav{display:flex;align-items:center;gap:16px;height:72px}
.brand{display:inline-flex;align-items:center;gap:9px;font-weight:700;font-size:1.08rem;letter-spacing:-.01em;text-decoration:none;color:var(--ink);white-space:nowrap;margin-right:auto}
.links{display:flex;gap:4px;align-items:center;border:1px solid var(--line);border-radius:999px;padding:5px;box-shadow:0 1px 2px rgba(0,0,0,.05)}
.links a{text-decoration:none;font-size:14px;font-weight:550;padding:7px 14px;border-radius:999px;white-space:nowrap;color:var(--ink)}
.links a:hover{background:var(--soft);color:var(--ink)}
main{padding:40px 24px 72px}
.hero{padding:56px 0 40px;max-width:720px}
.eyebrow{margin:0;color:var(--red);font-weight:600;font-size:14px;letter-spacing:.08em}
.hero h1{font-size:3.2rem;letter-spacing:-.035em;font-weight:700;line-height:1.06}
.lede{font-size:1.2rem;color:var(--ink2);margin:0 0 28px;max-width:600px}
.cta{display:flex;gap:12px;flex-wrap:wrap}
.btn,button{display:inline-block;font:inherit;font-weight:600;font-size:16px;background:var(--red);color:#fff;border:0;border-radius:10px;padding:13px 22px;text-decoration:none;cursor:pointer;transition:background .15s,transform .1s}
.btn:hover,button:hover{background:var(--red-d);color:#fff}.btn:active,button:active{transform:scale(.98)}
.btn.ghost{background:#fff;color:var(--ink);box-shadow:inset 0 0 0 1px var(--ink)}.btn.ghost:hover{background:var(--soft);color:var(--ink)}
.grid{display:grid;gap:24px;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));margin:24px 0 8px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px;margin:20px 0;box-shadow:var(--sh)}
.grid .card{margin:0;display:flex;flex-direction:column;transition:box-shadow .2s,transform .2s}
.grid .card:hover{transform:translateY(-2px);box-shadow:0 2px 4px rgba(0,0,0,.06),0 14px 28px rgba(0,0,0,.1)}
.card h2{margin:0 0 6px;font-size:1.2rem}.card p{color:var(--ink2);margin:0 0 18px}
.grid .card .cb>a:last-child{margin-top:auto;font-weight:600;text-decoration:none;color:var(--red)}.grid .card .cb>a:last-child:after{content:" \2192"}
.card h2 a{text-decoration:none}
.wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:var(--r);margin:16px 0}
table{border-collapse:collapse;width:100%;font-size:15px;margin:0;background:#fff}
th,td{padding:14px 16px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
th{font-size:13px;font-weight:600;color:var(--mute);background:var(--soft)}tr:last-child td{border-bottom:0}
td:nth-child(n+3){font-variant-numeric:tabular-nums}
.muted{color:var(--mute);font-size:14px}
.todo{background:var(--soft);border:1px solid var(--line);border-radius:12px;padding:14px 16px;font-size:14px;color:var(--ink2);margin:20px 0}
.warn{background:#fff5f6;border:1px solid #f6d3d8;border-radius:12px;padding:14px 16px;margin:24px 0;color:#5a1f27}
label{display:block;margin:16px 0 6px;font-weight:600;font-size:14px}
input,select,textarea{font:inherit;padding:12px 14px;border:1px solid #b0b0b0;border-radius:10px;width:100%;max-width:420px;background:#fff;color:var(--ink);transition:border-color .15s,box-shadow .15s}
input:hover,select:hover{border-color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:0;border-color:var(--ink);box-shadow:0 0 0 2px var(--ink)}
td input{padding:8px 10px}textarea{max-width:100%}
.big{font-size:1.9rem;font-weight:700;letter-spacing:-.02em}.ok{color:#0a7d3b;font-weight:600}.bad{color:var(--red-d);font-weight:600}
footer{background:var(--soft);border-top:1px solid var(--line);padding:48px 0 40px;font-size:14px;color:var(--ink2)}
.fgrid{display:grid;grid-template-columns:1.2fr 1fr 2fr;gap:32px}
.fcol{display:flex;flex-direction:column;gap:8px}.fcol a{text-decoration:none;color:var(--ink2)}.fcol a:hover{color:var(--ink);text-decoration:underline}
.jp{margin:8px 0 0;color:var(--mute)}
@media(max-width:760px){nav{height:auto;flex-wrap:wrap;padding-top:12px;padding-bottom:10px;gap:10px}
.links{width:100%;overflow-x:auto;scrollbar-width:none;justify-content:flex-start}.links::-webkit-scrollbar{display:none}
.links a{padding:7px 12px;font-size:13.5px}
h1{font-size:1.9rem}.hero{padding:24px 0 16px}.hero h1{font-size:2.3rem}.lede{font-size:1.05rem}
.cta .btn{flex:1 1 auto;text-align:center;white-space:nowrap;padding:13px 16px}.wrap table{min-width:540px}main{padding:24px 20px 56px}.fgrid{grid-template-columns:1fr;gap:20px}th,td{padding:11px 12px;font-size:14px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}
.hero.has-img{position:relative;max-width:none;padding:0;margin:8px 0 32px;border-radius:20px;overflow:hidden;min-height:480px;display:flex;align-items:flex-end;color:#fff}
.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero.has-img:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.6) 0%,rgba(0,0,0,.25) 60%,rgba(0,0,0,0) 100%),linear-gradient(180deg,rgba(0,0,0,0) 40%,rgba(0,0,0,.45) 100%)}
.hero-in{position:relative;z-index:1;padding:40px 44px;max-width:720px}
.hero.has-img h1,.hero.has-img .lede{color:#fff}.hero.has-img .lede{opacity:.94}.hero.has-img .eyebrow{color:#fff;opacity:.9}
.hero.has-img .btn.ghost{background:#fff;box-shadow:none}
.card.pic{padding:0;overflow:hidden}.card-img{display:block;width:100%;height:auto;aspect-ratio:3/2;object-fit:cover}
.cb{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}.cb h2{font-size:1.15rem}
.guide-img{display:block;width:100%;height:auto;max-height:420px;object-fit:cover;border-radius:16px;margin:8px 0 20px}
main>h1+.guide-img{margin-top:4px}
.credit{display:flex;gap:16px;align-items:center;padding:16px 0;border-bottom:1px solid var(--line)}
.thumb{width:120px;height:80px;object-fit:cover;border-radius:10px;flex:none}
@media(max-width:760px){.hero.has-img:after{background:linear-gradient(180deg,rgba(0,0,0,.1) 0%,rgba(0,0,0,.75) 70%)}.hero.has-img{min-height:520px;border-radius:16px}.hero-in{padding:24px 20px}.guide-img{border-radius:12px}.thumb{width:96px;height:64px}}
.crumbs{font-size:13px;color:var(--mute);margin:0 0 14px}.crumbs a{color:var(--mute);text-decoration:none}.crumbs a:hover{color:var(--ink);text-decoration:underline}.crumbs span[aria-hidden]{margin:0 6px;color:#bbb}
.facts{border:1px solid var(--line);border-radius:var(--r);padding:18px 22px;margin:20px 0 28px;background:#fff;box-shadow:var(--sh)}
.facts-h{margin:0 0 8px;font-weight:700;font-size:14px;letter-spacing:.04em;text-transform:uppercase;color:var(--red)}
.facts ul{margin:0 0 8px;padding-left:20px}.facts li{margin:4px 0}.facts .muted{margin:0}
.byline{color:var(--mute);font-size:14px;margin:-4px 0 18px}
.related{margin-top:36px;padding-top:8px;border-top:1px solid var(--line)}.related ul{padding-left:20px}
.postlist{padding-left:20px}.postlist li{margin:6px 0}
article{max-width:760px}article p,article li{font-size:17px;line-height:1.75}
.post-hero{margin:8px 0 24px}.post-hero img{display:block;width:100%;height:auto;border-radius:16px;aspect-ratio:16/9;object-fit:cover}
.post-hero figcaption{font-size:13px;color:var(--mute);margin-top:8px}
.cta-box{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;border-radius:var(--r);background:var(--soft);padding:20px 22px;margin:32px 0}
.cta-box p{margin:0}