:root{--bg:#f8fffc;--bg-glow:#e8fff5f2;--card:#fff;--surface-soft:#f2f1e4;--primary:#3f9d52;--primary-soft:#e7f4df;--primary-ink:#3f8f4a;--panel-bg:#e8f5df;--panel-border:#93e493;--ink:#333;--ink-soft:#6f6c62;--ink-faint:#9a9184;--border:#ece7d6}*{box-sizing:border-box}body{color:var(--ink);background:radial-gradient(ellipse 120% 60% at 50% -10%, var(--bg-glow), transparent), var(--bg);margin:0;font-family:Nunito,"Baloo 2",-apple-system,PingFang TC,Microsoft JhengHei,system-ui,sans-serif;line-height:1.6}.shell{flex-direction:column;max-width:960px;min-height:100vh;margin:0 auto;padding:0 24px;display:flex}main{flex:1}.header{justify-content:space-between;align-items:center;padding:20px 0;display:flex}.brand{color:var(--primary-ink);align-items:center;gap:10px;font-size:20px;font-weight:800;text-decoration:none;display:flex}.brand img{border-radius:12px;width:40px;height:40px}.nav{align-items:center;gap:16px;display:flex}.nav-link{color:var(--ink-soft);font-size:14px;font-weight:700;text-decoration:none}.nav-link:hover{color:var(--primary-ink)}.lang-btn{border:1px solid var(--border);background:var(--card);color:var(--primary-ink);cursor:pointer;border-radius:999px;padding:8px 16px;font-family:inherit;font-size:14px;font-weight:800}.lang-btn:hover{background:var(--primary-soft)}.hero{align-items:center;gap:32px;padding:48px 0 64px;display:flex}.hero-copy{flex:1}.hero h1{color:var(--ink);margin:0 0 16px;font-size:clamp(30px,5vw,44px);line-height:1.25}.hero p{color:var(--ink-soft);max-width:460px;margin:0 0 28px;font-size:17px}.hero-actions{flex-wrap:wrap;align-items:center;gap:14px;display:flex}.cta{background:var(--primary);color:#fff;border-radius:16px;padding:14px 28px;font-size:16px;font-weight:800;display:inline-block;box-shadow:0 6px 18px #3f9d524d}.cta-note{color:var(--ink-faint);font-size:14px;font-weight:600}.hero-mascot{width:min(260px,34vw);height:auto}section h2{color:var(--ink);margin:0 0 24px;font-size:26px}.features{padding:24px 0 40px}.feature-grid{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;display:grid}.feature-card{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:22px;box-shadow:0 2px 10px #00000008}.feature-icon{font-size:28px}.feature-card h3{color:var(--primary-ink);margin:10px 0 6px;font-size:17px}.feature-card p{color:var(--ink-soft);margin:0;font-size:14px}.how{padding:24px 0 48px}.steps{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;display:grid}.step{background:var(--panel-bg);border:1px solid var(--panel-border);text-align:center;border-radius:18px;padding:20px}.step-n{background:var(--primary);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:34px;height:34px;font-weight:800;display:inline-flex}.step h3{color:var(--ink);margin:10px 0 4px;font-size:17px}.step p{color:var(--ink-soft);margin:0;font-size:13px}.contact{text-align:center;padding:24px 0 56px}.contact-mascot{border-radius:24px;width:88px;height:88px}.contact h2{margin:12px 0 8px}.contact p{color:var(--ink-soft);margin:0 0 8px}.email{color:var(--primary-ink);font-size:17px;font-weight:800;text-decoration:none}.email:hover{text-decoration:underline}.privacy{max-width:720px;margin:0 auto;padding:24px 0 64px}.privacy h1{margin:16px 0 4px;font-size:32px}.privacy .updated{color:var(--ink-faint);margin-bottom:24px;font-size:14px;font-weight:600}.privacy h2{color:var(--primary-ink);margin:32px 0 10px;font-size:20px}.privacy p,.privacy li{color:var(--ink);font-size:15px}.privacy ul{gap:8px;padding-left:22px;display:grid}.footer{border-top:1px solid var(--border);color:var(--ink-faint);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:20px 0 28px;font-size:13px;font-weight:600;display:flex}@media (width<=640px){.hero{text-align:center;flex-direction:column-reverse;padding:16px 0 40px}.hero p{margin-left:auto;margin-right:auto}.hero-actions{justify-content:center}.hero-mascot{width:180px}}