:root {
  --bg:#f7f8fa;--surface:#fff;--ink:#18212f;--muted:#5d6a7a;--line:#dfe4ea;
  --accent:#175f68;--accent-dark:#0f4850;--accent-soft:#e8f2f2;--navy:#152b42;
  --max:1120px;--radius:18px;--shadow:0 18px 45px rgba(24,33,47,.09)
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Kaku Gothic ProN","Yu Gothic","Meiryo",sans-serif;color:var(--ink);background:var(--surface);line-height:1.75}a{color:inherit}.container{width:min(var(--max),calc(100% - 40px));margin-inline:auto}.narrow{max-width:860px}.site-header{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid rgba(223,228,234,.85)}.header-inner{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;text-decoration:none;letter-spacing:.02em}.brand-mark{width:34px;height:34px;display:grid;place-items:center;border-radius:10px;background:var(--accent);color:#fff}nav{display:flex;align-items:center;gap:24px}nav a{text-decoration:none;font-size:.94rem;color:var(--muted)}nav a:hover{color:var(--ink)}.hero{padding:92px 0 76px;background:radial-gradient(circle at 85% 15%,rgba(23,95,104,.16),transparent 31%),linear-gradient(180deg,#f8fbfb 0%,#fff 100%)}.hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:64px;align-items:center}.eyebrow{margin:0 0 12px;color:var(--accent);font-weight:800;letter-spacing:.1em;font-size:.78rem;text-transform:uppercase}h1,h2,h3{line-height:1.35;margin-top:0}h1{font-size:clamp(2.35rem,5vw,4.35rem);letter-spacing:-.04em;margin-bottom:24px}h2{font-size:clamp(1.75rem,3vw,2.65rem);letter-spacing:-.025em;margin-bottom:36px}h3{font-size:1.1rem;margin-bottom:8px}.lead{font-size:1.12rem;color:var(--muted);max-width:730px;margin-bottom:30px}.hero-actions{display:flex;align-items:center;gap:22px;flex-wrap:wrap}.button{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:0 24px;border-radius:999px;background:var(--accent);color:#fff;text-decoration:none;font-weight:800;box-shadow:0 10px 24px rgba(23,95,104,.2)}.button:hover{background:var(--accent-dark)}.button-small{min-height:40px;padding-inline:18px;color:#fff}.text-link{color:var(--accent);font-weight:800}.microcopy{margin-top:18px;font-size:.86rem;color:var(--muted)}.hero-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}.card-label{font-weight:800;margin:0 0 10px;color:var(--navy)}.hero-card ul{margin:0;padding-left:1.2em;color:var(--muted)}.arrow{text-align:center;padding:18px;color:var(--accent);font-size:1.35rem}.clean-list li::marker{color:var(--accent)}.section{padding:92px 0}.section-muted{background:var(--bg)}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.panel{padding:28px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}.panel p,.service-item p,.steps p,.security-grid p,.about p{color:var(--muted);margin-bottom:0}.service-list{display:grid;gap:16px}.service-item{display:grid;grid-template-columns:60px 1fr;gap:22px;padding:26px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--line)}.service-number{width:48px;height:48px;display:grid;place-items:center;border-radius:14px;background:var(--accent-soft);color:var(--accent);font-weight:900}.note{margin-top:24px;padding:22px 24px;border-left:4px solid var(--accent);background:#fff;border-radius:0 12px 12px 0}.note p{margin:4px 0 0;color:var(--muted)}.steps{list-style:none;padding:0;margin:0;display:grid;gap:22px}.steps li{display:grid;grid-template-columns:54px 1fr;gap:20px}.steps li>span{width:44px;height:44px;display:grid;place-items:center;border-radius:50%;background:var(--navy);color:#fff;font-weight:900}.security-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.security-grid>div{padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}.cta{padding:70px 0;background:var(--navy);color:#fff}.cta .eyebrow{color:#8ed0d5}.cta h2{margin-bottom:10px}.cta p{color:#c9d4df}.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:36px}.button-light{background:#fff;color:var(--navy);box-shadow:none}.button-light:hover{background:#eef3f5}.site-footer{padding:34px 0;background:#0f2032;color:#dce5ed}.footer-inner{display:grid;grid-template-columns:1fr auto;gap:16px 30px;align-items:start}.footer-inner p{margin:4px 0;color:#aebdca}.footer-links{display:flex;gap:20px}.footer-links a{color:#dce5ed}.copyright{grid-column:1/-1;font-size:.84rem}.privacy{padding:80px 0}.privacy h1{font-size:clamp(2rem,4vw,3rem)}.privacy h2{font-size:1.35rem;margin:36px 0 12px}.privacy p,.privacy li{color:var(--muted)}@media(max-width:860px){nav a:not(.button){display:none}.hero-grid,.grid-3,.security-grid{grid-template-columns:1fr}.hero{padding-top:64px}.cta-inner,.footer-inner{display:flex;flex-direction:column;align-items:flex-start}}@media(max-width:560px){.container{width:min(100% - 28px,var(--max))}.header-inner{min-height:64px}.brand{font-size:.95rem}.button-small{display:none}.hero{padding:52px 0 58px}h1{font-size:2.25rem}.section{padding:70px 0}.service-item{grid-template-columns:1fr}.hero-card{padding:24px}}