:root{--ink:#14213d;--sub:#5c6b80;--line:#e3e8ef;--bg:#f7f9fc;--brand:#0f6fde;--brand-d:#0b57b0;--ok:#e8f3ff;--warn:#b42318}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Noto Sans JP",sans-serif;color:var(--ink);background:#fff;line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:var(--brand)}
.bar{display:flex;align-items:baseline;gap:14px;padding:14px 24px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.logo{font-weight:800;font-size:20px;color:var(--ink);text-decoration:none;letter-spacing:.02em}
.tag{color:var(--sub);font-size:13px}
main{max-width:1120px;margin:0 auto;padding:0 20px 40px}
main.narrow{max-width:820px}
.hero{padding:44px 0 20px}
.hero h1{font-size:clamp(24px,4vw,36px);line-height:1.35;margin:0 0 12px}
.hero p{color:var(--sub);margin:0 0 18px;font-size:16px}
.facts{display:flex;gap:10px;flex-wrap:wrap;list-style:none;padding:0;margin:0}
.facts li{background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:8px 14px;font-size:14px}
.facts b{font-size:18px;margin-right:4px}
.builder{display:grid;grid-template-columns:1fr 330px;gap:24px;align-items:start;margin:12px 0 28px}
fieldset{border:1px solid var(--line);border-radius:14px;padding:14px 16px 10px;margin:0 0 14px}
legend{font-weight:700;padding:0 6px}
.hint{color:var(--sub);font-size:12px;margin:6px 0 0}
.region{display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin:4px 0}
.rname{width:88px;font-size:12px;color:var(--sub)}
.chips{display:flex;flex-wrap:wrap;gap:6px;padding:4px 0}
.chip input{position:absolute;opacity:0;pointer-events:none}
.chip span{display:inline-block;border:1px solid var(--line);border-radius:999px;padding:3px 11px;font-size:13px;cursor:pointer;background:#fff;user-select:none}
.chip input:checked+span{background:var(--brand);border-color:var(--brand);color:#fff}
.chip input:focus-visible+span{outline:2px solid var(--brand);outline-offset:2px}
.groups details{border-top:1px solid var(--line);padding:6px 0}
.groups summary{cursor:pointer;font-size:14px}
input[type=search]{width:100%;padding:9px 12px;border:1px solid var(--line);border-radius:10px;font-size:15px;margin:4px 0 6px}
.opts{display:flex;flex-direction:column;gap:6px;font-size:14px}
select,input[type=number]{font-size:15px;padding:6px 8px;border:1px solid var(--line);border-radius:8px}
.cart{position:sticky;top:16px;border:1px solid var(--line);border-radius:16px;padding:18px;background:var(--bg)}
.cart .label{font-size:13px;color:var(--sub);margin:0}
.cart .count{margin:2px 0 10px}.cart .count b{font-size:30px}
.qty input{width:120px}
.price{margin:10px 0 14px}.price b{font-size:26px}.price small{color:var(--sub);margin-left:4px}
button{font:inherit;cursor:pointer}
.primary{display:block;width:100%;background:var(--brand);color:#fff;border:0;border-radius:12px;padding:13px;font-weight:700;font-size:16px;text-align:center;text-decoration:none}
.primary:hover{background:var(--brand-d)}.primary:disabled{opacity:.45;cursor:not-allowed}
.ghost{display:block;width:100%;margin-top:8px;background:#fff;border:1px solid var(--brand);color:var(--brand);border-radius:12px;padding:10px;font-weight:600}
.err{color:var(--warn);font-size:14px}
.sample{margin:0 0 28px}.scroll{overflow-x:auto;border:1px solid var(--line);border-radius:12px}
table{border-collapse:collapse;font-size:13px;width:100%}
th,td{border-bottom:1px solid var(--line);padding:8px 10px;text-align:left;white-space:nowrap}
th{background:var(--bg)}
.why .cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.why .cards div{border:1px solid var(--line);border-radius:14px;padding:16px}
.why h3{margin:0 0 6px;font-size:16px}.why p{margin:0;color:var(--sub);font-size:14px}
h2{font-size:20px;margin:28px 0 12px}
.faq details{border-bottom:1px solid var(--line);padding:10px 0}.faq summary{cursor:pointer;font-weight:600}
.faq p{color:var(--sub);margin:8px 0 0}
.crumbs{font-size:13px;color:var(--sub);padding:18px 0 0}
.stats{max-width:520px;margin:16px 0}.stats th{width:55%;font-weight:600;background:#fff}
.cta{max-width:420px;margin:20px 0}
.cols2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.tally,.names{list-style:none;padding:0;margin:0}.tally li,.names li{border-bottom:1px solid var(--line);padding:6px 0;display:flex;justify-content:space-between;font-size:14px}
.links{display:flex;flex-wrap:wrap;gap:8px}.links a{border:1px solid var(--line);border-radius:999px;padding:4px 12px;font-size:13px;text-decoration:none}
.foot{border-top:1px solid var(--line);padding:22px 24px;color:var(--sub);font-size:12px}
.foot nav{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:8px}.foot a{color:var(--sub)}
.doc dt{font-weight:700;margin-top:14px}.doc dd{margin:2px 0 0}
form.box{display:flex;flex-direction:column;gap:10px;max-width:520px}
form.box input,form.box textarea{font:inherit;padding:9px 12px;border:1px solid var(--line);border-radius:10px}
@media (max-width:860px){.builder{grid-template-columns:1fr}.cart{position:static}.why .cards,.cols2{grid-template-columns:1fr}.rname{width:100%}}
.picked{color:var(--brand);font-size:12px;margin-left:6px}
@media (max-width:860px){
.cart{position:sticky;bottom:0;z-index:5;border-radius:16px 16px 0 0;padding:10px 14px 12px;box-shadow:0 -6px 20px rgba(20,33,61,.12);display:grid;grid-template-columns:1fr 1fr;gap:4px 10px;align-items:center}
.cart .label,.cart .hint{display:none}
.cart .count,.cart .price{margin:0}.cart .count b{font-size:20px}.cart .price b{font-size:20px}
.cart .qty{grid-column:1/3;font-size:13px}.cart .qty input{width:100px;padding:4px 6px}
.cart .primary{grid-column:1/2;padding:11px 6px;font-size:14px}.cart .ghost{grid-column:2/3;margin:0;padding:10px 6px;font-size:14px}
.cart .err{grid-column:1/3;margin:0}.cart .price small{display:none}
}