:root{
  --brand-red: #c81e1e;
  --brand-red-700: #991b1b;
  --brand-dark: #1b1b1b;
  --brand-mid: #4a4a4a;
  --brand-light: #fff9f9;
  --border: #f0dada;
  --card-bg: #ffffff;
  --shadow: 0 10px 20px rgba(153, 27, 27, .08);
  --radius: 16px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,"Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic",Meiryo,sans-serif;color:var(--brand-dark);background:var(--brand-light);line-height:1.75}
img{max-width:100%;height:auto;display:block}
.container{max-width:1100px;margin:0 auto;padding:0 20px}
.header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--border);backdrop-filter:saturate(180%) blur(6px)}
.header__inner{display:flex;align-items:center;justify-content:space-between;padding:12px 0;gap:12px}
.logo{display:flex;align-items:center;gap:0;text-decoration:none}
.logo img{height:32px;width:auto;display:block}
@media(max-width:640px){.logo img{height:24px}}
.nav a{color:var(--brand-dark);text-decoration:none;font-weight:600;margin-left:18px}
.nav a:hover{color:var(--brand-red)}
.nav-toggle{display:none;appearance:none;border:0;background:transparent;cursor:pointer;font-weight:800;padding:8px 10px;border-radius:10px}
.nav-toggle__bars{width:22px;height:2px;background:var(--brand-dark);display:block;position:relative}
.nav-toggle__bars::before,.nav-toggle__bars::after{content:"";position:absolute;left:0;width:22px;height:2px;background:var(--brand-dark)}
.nav-toggle__bars::before{top:-7px}.nav-toggle__bars::after{top:7px}
@media(max-width:840px){
  .nav{display:none;position:absolute;left:0;right:0;top:58px;background:#fff;border-bottom:1px solid var(--border);box-shadow:0 12px 24px rgba(0,0,0,.06)}
  .nav.is-open{display:block}
  .nav a{display:block;padding:14px 20px;margin:0;border-top:1px solid var(--border);font-size:16px}
  .nav-toggle{display:inline-flex;align-items:center;gap:8px}
}
.hero{padding:28px 0 40px;background:linear-gradient(120deg, rgba(200,30,30,.06), rgba(200,30,30,.03));border-bottom:1px solid var(--border)}
.hero__eyebrow{color:var(--brand-red);font-weight:800;letter-spacing:.08em}
.hero h1{font-size:clamp(28px,4vw,44px);line-height:1.25;margin:10px 0 8px}
.hero__lead{font-size:clamp(15px,2.3vw,18px);color:var(--brand-mid);max-width:820px}
.hero__cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.button{appearance:none;border:none;cursor:pointer;text-decoration:none;color:#fff;background:var(--brand-red);padding:14px 18px;border-radius:999px;font-weight:800;box-shadow:var(--shadow);display:inline-flex;align-items:center;gap:10px}
.button--line{background:var(--brand-red-700)}
.button--ghost{background:#fff;color:var(--brand-dark);border:2px solid var(--border)}
.button:hover{opacity:.9}
.section{padding:56px 0}
.section__head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:20px}
.section__head h2{font-size:clamp(22px,3vw,28px);margin:0;display:flex;align-items:center;gap:10px}
.badge{display:inline-block;background:#fff;border:1px solid var(--border);padding:6px 10px;border-radius:999px;font-weight:700;color:var(--brand-mid)}
.grid{display:grid;gap:16px;grid-template-columns:repeat(3,minmax(0,1fr))}
@media(max-width:980px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){.grid{grid-template-columns:1fr}}
.card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;min-height:100%}
.card__media img{width:100%;height:auto;display:block}
.card__body{padding:16px}
.card__title{font-weight:800;font-size:18px;margin:0 0 6px}
.card__desc{color:var(--brand-mid);font-size:14px;min-height:3.2em}
.card__actions{padding:16px;display:flex;gap:10px;margin-top:auto}
.tag{display:inline-block;background:rgba(200,30,30,.08);color:var(--brand-red);padding:6px 10px;border-radius:999px;font-weight:700;font-size:12px}
.split{display:grid;gap:24px;grid-template-columns:1.2fr .8fr;align-items:start}
@media(max-width:880px){.split{grid-template-columns:1fr}}
.panel{background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px}
.panel h3{margin-top:0}
.faq details{border:1px solid var(--border);border-radius:12px;padding:12px;background:#fff}
.faq details+details{margin-top:12px}
.faq summary{font-weight:800;cursor:pointer}
.cta-band{background:linear-gradient(90deg, var(--brand-red-700), var(--brand-red));color:#fff;padding:26px 0;margin-top:30px}
.cta-band .container{display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between}
.cta-band__tel{font-size:clamp(20px,3.6vw,28px);font-weight:900;letter-spacing:.02em}
.cta-band a.button{background:#fff;color:var(--brand-red)}
.footer{background:#0b0f19;color:#cbd5e1;padding:36px 0;margin-top:40px;border-top:4px solid var(--brand-red)}
.footer a{color:#fff;text-decoration:none}
.footer small{display:block;color:#94a3b8;margin-top:12px}