:root{
  --bg:#f7f5f1;--panel:#fff;--ink:#181818;--muted:#777;--line:#e5e1da;
  --red:#b40000;--shadow:0 20px 70px rgba(0,0,0,.09)
}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);
font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Yu Gothic",Meiryo,sans-serif;line-height:1.75}
img{display:block;max-width:100%}a{color:inherit}
.topbar{position:sticky;top:0;z-index:10;min-height:72px;padding:12px clamp(20px,5vw,72px);
display:flex;align-items:center;justify-content:space-between;background:rgba(247,245,241,.92);
backdrop-filter:blur(16px);border-bottom:1px solid rgba(0,0,0,.05)}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:900}
.brand img{width:44px;height:44px;border-radius:12px}nav{display:flex;gap:26px}
nav a{text-decoration:none;font-size:14px;font-weight:800;color:#555}
.hero{min-height:calc(100vh - 72px);display:grid;grid-template-columns:1.15fr .85fr;align-items:center;
gap:70px;padding:80px clamp(24px,8vw,140px)}
.eyebrow,.section-label{margin:0 0 14px;color:var(--red);font-weight:900;letter-spacing:.12em;font-size:13px}
h1{font-size:clamp(50px,7vw,96px);line-height:1.08;letter-spacing:-.055em;margin:0 0 28px}
.lead{max-width:730px;font-size:clamp(18px,2vw,25px);color:#555}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.chips span{padding:10px 16px;border:1px solid var(--line);background:rgba(255,255,255,.8);
border-radius:999px;font-size:14px;font-weight:900}
.hero-icon-wrap{display:grid;place-items:center}
.hero-icon{width:min(430px,80vw);border-radius:25%;box-shadow:var(--shadow)}
.concept,.split{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;
padding:90px clamp(24px,8vw,140px);background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.concept h2,.section h2,.split h2{font-size:clamp(34px,4vw,58px);line-height:1.2;margin:0}
.concept>p{margin:0;font-size:20px;color:#555}
.section{padding:100px clamp(24px,8vw,140px)}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:44px}
.feature-grid article{padding:28px;min-height:225px;background:#fff;border:1px solid var(--line);
border-radius:24px;box-shadow:0 8px 30px rgba(0,0,0,.04)}
.feature-grid b{color:var(--red)}.feature-grid h3{font-size:22px;margin:34px 0 8px}
.feature-grid p{margin:0;color:#6c6c6c}
.screens{background:#efede8}.screen-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;margin-top:44px}
.screen-grid figure{margin:0;background:#fff;border-radius:24px;overflow:hidden;box-shadow:var(--shadow)}
.screen-grid img{width:100%;aspect-ratio:16/9;object-fit:cover}.screen-grid figcaption{padding:16px 20px;font-weight:900}
.text{font-size:18px;color:#555}.text h3{margin:0 0 4px;color:#111;font-size:18px}
.text h3:not(:first-child){margin-top:30px}.mail{display:inline-block;margin:12px 0;padding:14px 18px;
border-radius:12px;background:#111;color:#fff;text-decoration:none;font-weight:900}.small{font-size:14px;color:#888}
.privacy{background:#fff}footer{display:flex;align-items:center;gap:18px;padding:50px clamp(24px,8vw,140px);
border-top:1px solid var(--line)}footer img{width:60px;height:60px;border-radius:15px}
footer p{margin:2px 0 0;color:#888;font-size:13px}
@media(max-width:900px){nav{display:none}.hero{grid-template-columns:1fr;min-height:auto;padding-top:65px}
.hero-icon-wrap{order:-1}.hero-icon{width:230px}.concept,.split{grid-template-columns:1fr;gap:24px}
.feature-grid{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.hero{padding:52px 20px}h1{font-size:47px}.section,.concept,.split{padding:64px 20px}
.feature-grid,.screen-grid{grid-template-columns:1fr}.feature-grid article{min-height:0}}