:root{--lime:#7cc242;--lime-d:#4f8f1f;--ink:#1d1d1f;--mute:#6e6e73;--bg:#fbfbf8;--card:#fff;--line:#e8e8e3}
*{box-sizing:border-box;margin:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--lime-d)}
.wrap{max-width:1040px;margin:0 auto;padding:0 24px}
.lb-nav{position:sticky;top:0;background:rgba(251,251,248,.85);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line);z-index:9}
.lb-nav .wrap{display:flex;align-items:center;justify-content:space-between;min-height:56px;flex-wrap:wrap;gap:8px}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;text-decoration:none;font-size:18px;color:var(--ink)}
.brand img{width:28px;height:28px;border-radius:7px}
.lb-nav ul{display:flex;gap:18px;list-style:none;padding:0;font-size:14px;flex-wrap:wrap}
.lb-nav ul a{text-decoration:none;color:var(--mute)}.lb-nav ul a:hover,.lb-nav ul a[aria-current=page]{color:var(--lime-d);font-weight:600}
main{padding:48px 0}
h1{font-size:clamp(32px,5vw,52px);line-height:1.1;letter-spacing:-.02em;margin-bottom:16px}
h2{font-size:26px;margin:32px 0 12px}h3{margin:8px 0}
p,li{color:#3a3a3c;margin-bottom:10px}
.lead{font-size:20px;color:var(--mute);max-width:680px}
.hero{text-align:center;padding:40px 0}.hero img{width:120px;height:120px;border-radius:28px;margin-bottom:20px}.hero .lead{margin:0 auto 24px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;margin:20px 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:24px}
.card img{width:64px;height:64px;border-radius:14px}
.btn{display:inline-block;background:var(--lime);color:#fff;text-decoration:none;padding:12px 22px;border-radius:999px;font-weight:600}
.btn.alt{background:#fff;color:var(--lime-d);border:1px solid var(--lime)}
.badge{display:inline-block;background:#eaf6dd;color:var(--lime-d);border-radius:999px;padding:2px 10px;font-size:12px;font-weight:600}
.note{background:#f2f9ea;border-left:4px solid var(--lime);padding:12px 16px;border-radius:8px}
details{border-bottom:1px solid var(--line);padding:12px 0}summary{font-weight:600;cursor:pointer}
form label{display:block;margin:12px 0 4px;font-weight:600}form input,form textarea{width:100%;padding:10px;border:1px solid var(--line);border-radius:10px;font:inherit}
.lb-footer{border-top:1px solid var(--line);padding:32px 0;color:var(--mute);font-size:14px}
.lb-footer ul{list-style:none;padding:0;display:flex;gap:16px;flex-wrap:wrap;margin-bottom:12px}.lb-footer a{color:var(--mute)}

/* Landing layout: slim banner + tool buttons */
.slim-banner{margin:0 auto 28px;max-width:720px;padding:12px 18px;border-radius:14px;background:linear-gradient(135deg,#f2f9ea,#e8f4d9);border:1px solid #cfe8b0;color:#3d6b1a;font:500 15px/1.4 -apple-system,Segoe UI,Roboto,sans-serif;text-align:center}
.tool-buttons{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:0 0 28px}
.tool-btn{display:flex;flex-direction:column;gap:4px;padding:18px 16px;border-radius:16px;background:#fff;border:1px solid #e5e5e5;box-shadow:0 8px 24px -18px rgba(0,0,0,.35);text-decoration:none;color:inherit;transition:transform .15s ease,box-shadow .15s ease}
.tool-btn:hover{transform:translateY(-2px);box-shadow:0 12px 28px -16px rgba(79,143,31,.45);border-color:#b9dc97}
.tool-btn-title{font:700 16px/1.2 -apple-system,Segoe UI,Roboto,sans-serif;color:#1d1d1f}
.tool-btn-sub{font:400 13px/1.3 -apple-system,Segoe UI,Roboto,sans-serif;color:#6e6e73}
.hero{padding-bottom:20px}
.hero img{width:120px;height:120px}
@media(max-width:900px){.tool-buttons{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.tool-buttons{grid-template-columns:1fr}}