:root{--brand-900:#0B4C3B;--brand-700:#196A51;--brand-500:#2F855A;--accent-500:#2C7A7B;--ink-900:#0f172a;--ink-700:#334155;--ink-500:#64748b;--line:#cfe3d8;--bg:#f6faf7;--card:#fff;--radius:8px;--shadow:0 1px 0 rgba(255,255,255,.5) inset,0 1px 2px rgba(2,6,23,.05)}
*{box-sizing:border-box}html,body{height:100%}body{margin:0;background:var(--bg);color:var(--ink-900);font-family:'Public Sans',system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
.wrap{max-width:1180px;margin:0 auto;padding:0 18px}a{color:var(--brand-700);text-decoration:none}a:hover{text-decoration:underline}
.btn{display:inline-flex;align-items:center;gap:.55rem;padding:.78rem 1.05rem;border-radius:999px;border:2px solid var(--line);background:#fff;color:var(--brand-900);box-shadow:var(--shadow);font-weight:700;transition:background .2s ease,transform .06s ease}
.btn:hover{background:#f3fcf7}.btn:active{transform:translateY(1px)}.btn-primary{background:linear-gradient(135deg,var(--brand-700),var(--brand-500));color:#fff;border-color:transparent}.btn-primary:hover{filter:brightness(1.03)}
header{background:#fff;border-bottom:2px solid var(--line)}.nav{display:flex;align-items:center;justify-content:space-between;height:66px}.brand{display:flex;align-items:center;gap:.6rem;color:var(--brand-900);font-family:'IBM Plex Serif',Georgia,serif;font-weight:700}.brand-logo{width:32px;height:32px;border-radius:6px;background:linear-gradient(135deg,var(--brand-900),var(--brand-500))}.nav a{padding:.45rem .6rem;border-radius:6px;color:var(--ink-700);font-weight:700}.nav a:hover{background:#f2fbf6;text-decoration:none}
section{padding:62px 0}.section-title{font-family:'IBM Plex Serif',Georgia,serif;font-size:clamp(1.5rem,2.6vw,2.1rem);color:var(--brand-900);margin:0 0 .4rem}.section-sub{color:var(--ink-700);margin:0 0 1rem}
.notice{background:#f0fbf5;border:2px solid var(--line);border-left:6px solid var(--brand-700);border-radius:8px;padding:16px 18px;box-shadow:var(--shadow)}
.hero{background:linear-gradient(180deg,#fff,#f3fbf7)}.hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:1.7rem;align-items:start;padding:54px 18px}.hero h1{font-family:'IBM Plex Serif',Georgia,serif;color:var(--brand-900);font-size:clamp(1.9rem,3vw,2.7rem);margin:.3rem 0 .6rem}.hero p{color:var(--ink-700);font-size:1.06rem}.hero-figure{background:#fff;border:2px solid var(--line);border-radius:8px;padding:16px;box-shadow:var(--shadow)}
.grid{display:grid;gap:16px}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.card{background:var(--card);border:2px solid var(--line);border-radius:8px;padding:18px;box-shadow:var(--shadow)}.card h3{margin:.2rem 0 .5rem;font-size:1.12rem;color:var(--brand-900)}.card p{margin:0;color:var(--ink-700)}.card .meta{font-size:.93rem;color:var(--ink-500)}
.faq{border:2px solid var(--line);border-radius:8px;background:#fff}.faq-item{border-top:2px solid var(--line)}.faq-item:first-child{border-top:none}.faq-q{margin:0;font-weight:700}.faq-btn{all:unset;display:flex;justify-content:space-between;align-items:center;cursor:pointer;padding:14px 16px}.faq-a{display:none;padding:0 16px 14px 16px;color:var(--ink-700)}
footer{border-top:2px solid var(--line);padding:36px 0;background:#fff;color:var(--ink-700)}
@media (max-width:1024px){.hero .wrap{grid-template-columns:1fr}.grid-4{grid-template-columns:repeat(2,1fr)}}@media (max-width:720px){.grid-3,.grid-2,.grid-4{grid-template-columns:1fr}.nav .hide-sm{display:none}}