:root{--green:#3f9b4a;--green-dark:#2f7a39;--green-tint:#eef7ef;--melon:#f2c14e;--fg:#1f2933;--muted:#5f6c7b;--border:#dde3e8;--radius:14px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--fg);background:#fff;font:16px/1.8 system-ui,-apple-system,Hiragino Sans,Noto Sans JP,Yu Gothic,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}h1,h2,h3{line-height:1.35;margin:0}p{margin:0}.container{max-width:1040px;margin:0 auto;padding:0 24px}.narrow{max-width:720px}.center{text-align:center}.header{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.92);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:18px}.brand-mark{width:22px;height:22px;border-radius:50%;background:radial-gradient(circle at 35% 30%,#8fd694,var(--green));box-shadow:inset 0 0 0 2px var(--green-dark)}.nav{display:flex;align-items:center;gap:22px;font-size:14px;color:var(--muted)}.nav a:hover{color:var(--fg)}.button,.nav .button{color:#fff}.button{display:inline-block;padding:12px 22px;border-radius:999px;background:var(--green);font:inherit;font-weight:600;border:0;cursor:pointer;text-align:center}.button:hover{background:var(--green-dark)}.button-small{padding:7px 16px;font-size:14px}.button-ghost{background:#fff;color:var(--fg);border:1px solid var(--border)}.button-ghost:hover{background:var(--green-tint)}.button-disabled{color:var(--muted);cursor:default}.button-disabled,.button-disabled:hover,.button:disabled{background:#e7ebef}.button:disabled{color:var(--muted);cursor:not-allowed}.hero{background:linear-gradient(180deg,var(--green-tint),#fff);padding:72px 0 80px}.hero-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}.badge{display:inline-block;padding:2px 12px;border-radius:999px;background:#fdf3dc;color:#8a5a00;font-size:13px;font-weight:600;margin-bottom:18px}.hero h1{font-size:clamp(36px,6vw,56px);letter-spacing:.01em}.lead{margin-top:20px;font-size:18px;color:#3b4753}.cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.fine{margin-top:18px;font-size:13px;color:var(--muted);line-height:1.7}.panel{margin:0;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px;box-shadow:0 18px 40px rgba(31,41,51,.1)}.panel-bar{display:flex;justify-content:space-between;align-items:center;font-weight:700;font-size:14px;padding-bottom:10px;border-bottom:1px solid var(--border)}.panel-q{margin-top:14px;padding:8px 12px;background:#f5f7f9;border-radius:8px;font-size:14px}.panel-label{margin-top:14px;font-size:12px;color:var(--muted);font-weight:600}.panel-a{font-size:26px;font-weight:700;line-height:1.4}.panel-e{font-size:14px}.panel-verify{margin-top:12px;font-size:12px;color:var(--green-dark);font-weight:600}.panel figcaption{margin-top:12px;font-size:11px;color:var(--muted);text-align:right}.chip{padding:1px 10px;border-radius:999px;font-size:12px;font-weight:600}.chip-high{background:#e8f5ea;color:var(--green-dark)}.section{padding:72px 0}.section-tint{background:var(--green-tint)}.section h2{font-size:28px;margin-bottom:28px}.section p{color:#3b4753}.section .fine{color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px}.card h3{font-size:20px;margin-bottom:10px;color:var(--green-dark)}.card p{font-size:15px}.steps{list-style:none;margin:0;padding:0;display:grid;gap:14px}.step{display:flex;gap:18px;align-items:flex-start;background:#fff;border-radius:var(--radius);padding:20px 22px;border:1px solid var(--border)}.step-n{flex:none;width:36px;height:36px;border-radius:50%;background:var(--green);color:#fff;display:grid;place-items:center;font-weight:700}.step h3{font-size:18px;margin-bottom:2px}.step p{font-size:15px}.plain-list{margin:16px 0 0;padding-left:1.2em;color:#3b4753}.plain-list li{margin:4px 0}.footer{border-top:1px solid var(--border);padding:28px 0;font-size:14px;color:var(--muted)}.footer-inner{display:flex;justify-content:space-between}.solo{min-height:100vh;display:grid;place-items:center;padding:24px;background:var(--green-tint)}.solo-card{width:100%;max-width:420px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:32px 28px;display:grid;gap:16px}.solo-card h1{font-size:24px}.solo-card form{display:grid;gap:14px}.solo-card label{display:grid;gap:6px;font-size:14px;font-weight:600}.solo-card input{padding:10px 12px;border:1px solid var(--border);border-radius:8px;font:inherit}.solo-card input:disabled{background:#f5f7f9}.muted{color:var(--muted);font-size:14px}@media (max-width:820px){.hero{padding:48px 0 56px}.hero-inner{gap:36px}.grid,.hero-inner{grid-template-columns:1fr}.nav a:not(.button){display:none}.section{padding:52px 0}}