:root{--green:#6faa28;--green-dark:#578c1e;--green-soft:#eef7e2;--green-line:#cfe8ab;--ink:#1f3b4a;--ink-2:#39525f;--muted:#64798a;--soft:#f4f8f3;--line:#e2ebe0}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"Inter","Segoe UI",system-ui,sans-serif;color:var(--ink);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:var(--green-dark)}
.wrap{max-width:760px;margin:0 auto;padding:0 24px}
nav{position:sticky;top:0;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);z-index:10}
.nav-in{max-width:1180px;margin:0 auto;padding:0 24px;display:flex;align-items:center;gap:20px;height:62px}
.logo{display:flex;align-items:center;text-decoration:none}
.logo img{height:34px;display:block}
.nav-in .blog-link{color:var(--ink-2);text-decoration:none;font-size:.92rem;font-weight:600}
.nav-in .cta{margin-left:auto;background:var(--green);color:#fff;text-decoration:none;font-weight:700;font-size:.88rem;padding:9px 18px;border-radius:9px}
header.art{padding:64px 0 34px}
.kicker{display:inline-block;font-size:.75rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--green-dark);background:var(--green-soft);border:1px solid var(--green-line);padding:4px 12px;border-radius:999px;margin-bottom:16px}
h1{font-size:clamp(1.8rem,4vw,2.6rem);line-height:1.15;letter-spacing:-.02em;margin-bottom:14px}
.meta{color:var(--muted);font-size:.88rem}
article{padding-bottom:40px}
article h2{font-size:1.45rem;margin:38px 0 12px;letter-spacing:-.01em}
article h3{font-size:1.1rem;margin:26px 0 8px}
article p,article li{color:var(--ink-2);margin-bottom:14px;font-size:1.02rem}
article ul,article ol{padding-left:22px;margin-bottom:14px}
article li{margin-bottom:6px}
.box{background:var(--soft);border:1px solid var(--line);border-left:4px solid var(--green);border-radius:0 12px 12px 0;padding:18px 22px;margin:24px 0}
.box b{color:var(--ink)}
table{width:100%;border-collapse:collapse;margin:20px 0;font-size:.95rem}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);color:var(--ink-2)}
th{color:var(--ink);background:var(--soft)}
.cta-box{background:#0b1c12;color:#fff;border-radius:18px;padding:34px;text-align:center;margin:44px 0}
.cta-box h2{color:#fff;margin:0 0 8px;font-size:1.4rem}
.cta-box p{color:#b9d4c3;margin-bottom:20px}
.cta-box a{display:inline-block;background:var(--green);color:#fff;text-decoration:none;font-weight:700;padding:12px 24px;border-radius:10px}
footer.site{border-top:1px solid var(--line);padding:30px 0;margin-top:20px}
footer.site .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.85rem;color:var(--muted);max-width:1180px}
/* blog index */
.blog-grid{display:grid;gap:20px;padding-bottom:60px}
.post-card{border:1px solid var(--line);border-radius:16px;padding:26px;text-decoration:none;display:block;transition:.15s;box-shadow:0 6px 20px rgba(11,28,18,.05)}
.post-card:hover{border-color:var(--green);transform:translateY(-2px)}
.post-card h2{color:var(--ink);font-size:1.25rem;margin:8px 0;letter-spacing:-.01em}
.post-card p{color:var(--ink-2);font-size:.95rem;margin:0}
.post-card .tag{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--green-dark)}