:root{--green:#006b5b;--dark:#16342f;--mint:#e8f4f0;--cream:#f7f8f5;--line:#dce7e3;--text:#20312d}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif;color:var(--text);background:white;line-height:1.85}
.wrap{width:min(1120px,92%);margin:auto}header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:72px}.brand{font-weight:800;color:var(--dark);text-decoration:none;letter-spacing:.02em}.links{display:flex;gap:18px;flex-wrap:wrap}.links a{color:#3d514c;text-decoration:none;font-size:14px}
.hero{background:linear-gradient(135deg,#eef7f4,#fff);padding:80px 0 68px;border-bottom:1px solid var(--line)}.hero h1{font-size:clamp(36px,5vw,64px);line-height:1.18;margin:.15em 0}.lead{font-size:18px;max-width:820px}.eyebrow{color:var(--green);font-weight:800;letter-spacing:.14em;font-size:13px}
section{padding:64px 0}section.alt{background:var(--cream)}h2{font-size:30px;color:var(--dark);margin-top:0}h3{color:var(--dark)}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{border:1px solid var(--line);border-radius:16px;padding:26px;background:white;box-shadow:0 5px 20px rgba(0,0,0,.025)}
.btn{display:inline-block;background:var(--green);color:white!important;text-decoration:none;padding:12px 20px;border-radius:9px;font-weight:700}.pill{display:inline-block;background:var(--mint);padding:4px 10px;border-radius:999px;font-size:13px;font-weight:700;color:var(--green)}
table{width:100%;border-collapse:collapse;background:white}th,td{border:1px solid var(--line);padding:14px;text-align:left;vertical-align:top}th{background:var(--mint)}.table{overflow-x:auto}.quote{font-size:22px;font-weight:700;color:var(--dark);border-left:5px solid var(--green);padding-left:20px}
footer{background:#173a34;color:white;padding:42px 0}footer a{color:white}.small{font-size:13px;color:#63756f}.steps{counter-reset:s}.step{padding-left:56px;position:relative;margin:26px 0}.step:before{counter-increment:s;content:counter(s);position:absolute;left:0;top:0;width:38px;height:38px;border-radius:50%;background:var(--green);color:#fff;display:grid;place-items:center;font-weight:800}
@media(max-width:850px){.nav{align-items:flex-start;padding:14px 0;flex-direction:column}.links{gap:11px}.grid{grid-template-columns:1fr}.hero{padding:55px 0}section{padding:48px 0}}