:root{--bg:#0b0d12;--alt:#11141b;--fg:#e9ecf2;--mute:#9aa3b5;--acc:#5b8cff;--line:#232838}
@media(prefers-color-scheme:light){:root{--bg:#fff;--alt:#f4f6fa;--fg:#12151c;--mute:#5a6478;--acc:#2f5bea;--line:#dde2ec}}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.9 "Hiragino Sans","Noto Sans JP",system-ui,sans-serif}
a{color:inherit}
.header{position:fixed;inset:0 0 auto 0;display:flex;justify-content:space-between;align-items:center;padding:14px 5vw;background:color-mix(in srgb,var(--bg) 85%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);z-index:10}
.logo{font-weight:700;text-decoration:none;letter-spacing:.05em}.logo span{color:var(--acc);margin:0 .1em}
nav a{margin-left:1.4rem;text-decoration:none;font-size:.8rem;letter-spacing:.12em;color:var(--mute)}nav a:hover{color:var(--fg)}
.hero{min-height:100svh;display:flex;flex-direction:column;justify-content:center;padding:120px 5vw 60px;max-width:1100px;margin:auto}
.eyebrow{color:var(--acc);letter-spacing:.2em;font-size:.85rem}
h1{font-size:clamp(2rem,6vw,4rem);line-height:1.3;margin:.3em 0}
.lead{color:var(--mute)}
.btn{display:inline-block;margin-top:1.5rem;padding:.8em 2em;border:1px solid var(--acc);color:var(--acc);text-decoration:none;border-radius:999px;align-self:flex-start}
.btn:hover{background:var(--acc);color:#fff}
.section{padding:96px 5vw}.section>*{max-width:900px;margin-left:auto;margin-right:auto}
.alt{background:var(--alt)}
h2{font-size:clamp(1.4rem,3.5vw,2rem);line-height:1.5}h2 small{display:block;color:var(--acc);letter-spacing:.2em;font-size:.75rem;margin-bottom:.4rem}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}
.cards article{padding:1.4rem;border:1px solid var(--line);border-radius:12px;background:var(--bg)}
.cards h3{margin:.2em 0}.cards p{color:var(--mute);font-size:.9rem;margin:0}
.note{color:var(--mute);font-size:.8rem;margin-top:1rem}
.dl{display:grid;grid-template-columns:8em 1fr;border-top:1px solid var(--line)}
.dl dt,.dl dd{margin:0;padding:.9rem 0;border-bottom:1px solid var(--line)}.dl dt{color:var(--mute)}
.map iframe,.form iframe{width:100%;border:0;border-radius:12px;margin-top:1.5rem}
.map iframe{height:320px}.form iframe{height:720px;background:#fff}
.sns a{margin-right:1.2rem;color:var(--mute)}
footer{text-align:center;padding:32px;color:var(--mute);font-size:.8rem;border-top:1px solid var(--line)}
@media(max-width:640px){nav a{margin-left:.8rem;font-size:.7rem}.dl{grid-template-columns:1fr}.dl dt{border:0;padding-bottom:0}.pc{display:none}}