:root{--navy:#1f3a5f;--text:#222;--gray:#f4f5f7;--line:#dde1e7;--mute:#5a6472}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--text);background:#fff;line-height:1.85;font-size:16px;font-family:"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP",Meiryo,sans-serif}
a{color:var(--navy)}
.wrap{max-width:960px;margin:0 auto;padding:0 24px}
header{border-bottom:1px solid var(--line);background:#fff}
header .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 32px;padding-top:16px;padding-bottom:16px}
.logo{font-size:20px;font-weight:700;color:var(--navy);text-decoration:none;letter-spacing:.04em}
nav{display:flex;flex-wrap:wrap;gap:4px 28px;font-size:14px}
nav a{color:var(--text);text-decoration:none}
nav a:hover{color:var(--navy);text-decoration:underline}
section{padding:72px 0}
section.alt{background:var(--gray)}
h1{font-size:40px;line-height:1.35;margin:0 0 16px;color:var(--navy);letter-spacing:.04em}
h2{font-size:26px;margin:0 0 8px;color:var(--navy);letter-spacing:.04em}
h2::after{content:"";display:block;width:40px;height:3px;background:var(--navy);margin-top:10px}
.lead{margin:0 0 32px;color:var(--mute)}
.hero{padding:88px 0}
.hero .wrap>div{max-width:720px}
.hero p{margin:0 0 28px;font-size:18px}
.btn{display:inline-block;background:var(--navy);color:#fff;text-decoration:none;padding:12px 28px;border-radius:4px;font-size:15px}
.btn.sub{background:#fff;color:var(--navy);border:1px solid var(--navy);padding:10px 18px;font-size:14px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.card{background:#fff;border:1px solid var(--line);border-radius:6px;overflow:hidden;display:flex;flex-direction:column}
.photo{aspect-ratio:4/3;background:#fff;border-bottom:1px solid var(--line)}
.photo img{display:block;width:100%;height:100%;object-fit:contain}
.card .body{padding:20px 20px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card h3{margin:0;font-size:18px;color:var(--navy);line-height:1.5}
.card p{margin:0;font-size:15px}
.card .btns{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto}
.note{margin-top:20px;font-size:13px;color:var(--mute)}
.steps{list-style:none;margin:24px 0 0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:12px;counter-reset:s}
.steps li{counter-increment:s;background:#fff;border:1px solid var(--line);border-radius:6px;padding:14px 12px;font-size:14px;text-align:left}
.steps li::before{content:counter(s);display:block;font-weight:700;color:var(--navy);font-size:20px;line-height:1.2;margin-bottom:4px}
dl.co{margin:0;display:grid;grid-template-columns:160px 1fr;border-top:1px solid var(--line)}
dl.co dt,dl.co dd{margin:0;padding:14px 8px;border-bottom:1px solid var(--line)}
dl.co dt{font-weight:700;color:var(--navy)}
footer{background:var(--navy);color:#fff;font-size:13px;padding:28px 0}
footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 24px}
footer a{color:#fff}
footer .sns{display:flex;align-items:center;gap:20px}footer .sns img{display:block;width:24px;height:24px}
.doc h1{font-size:30px}
.doc h2{font-size:20px;margin-top:40px}
.doc h2::after{display:none}
.doc h3{font-size:17px;margin:36px 0 6px;padding-left:10px;border-left:4px solid var(--navy);color:var(--navy)}
.doc h4{font-size:15px;margin:22px 0 2px;color:var(--navy)}
.doc p,.doc li{font-size:15px}
@media (max-width:760px){
 .wrap{padding:0 16px}
 section{padding:48px 0}.hero{padding:48px 0}
 h1{font-size:30px}h2{font-size:22px}
 .steps{grid-template-columns:1fr}
 .steps li{display:flex;gap:12px;align-items:baseline}.steps li::before{margin:0}
 dl.co{grid-template-columns:1fr}dl.co dt{border-bottom:0;padding-bottom:0}
 nav{gap:2px 18px}
}