:root{--bg:#f6f8f4;--text:#111827;--ink:#0f172a;--soft:#536170;--accent:#0f766e;--card:#ffffff;--line:#dfe6f2}
*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.72}
a{color:var(--accent);text-underline-offset:2px}
.top{background:#0b2530;color:#fff;padding:22px 0;position:sticky;top:0;z-index:5}.inner{max-width:1100px;margin:auto;padding:0 18px}
.brand{font-weight:900;font-size:1.25rem}.nav{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px} .nav a{color:#e2f5f3;border:1px solid #225e63;padding:7px 11px;border-radius:999px;background:#0f3f49;text-decoration:none}
.dd{position:relative}.dd summary{list-style:none;padding:7px 11px;border-radius:999px;border:1px solid #225e63;background:#0f3f49;color:#e2f5f3;cursor:pointer}.dd summary::-webkit-details-marker{display:none}.ddmenu{position:absolute;top:38px;left:0;background:#0f3f49;border:1px solid #225e63;padding:10px;border-radius:10px;min-width:240px;display:none;z-index:8}.dd[open] .ddmenu{display:block}.ddmenu a{display:block;margin:4px 0;color:#e2f5f3;text-decoration:none;padding:7px 9px;background:#134a55;border-radius:8px}.ddmenu a:hover{background:#0b6973}
.hero{max-width:1100px;margin:22px auto 0;background:var(--card);border:1px solid var(--line);border-radius:22px;overflow:hidden;box-shadow:0 18px 46px #0b3a4217}
.hero img{width:100%;height:auto;display:block;aspect-ratio:16/9;object-fit:cover}
.card{max-width:1100px;margin:18px auto;padding:30px;background:var(--card);border-radius:20px;border:1px solid var(--line);box-shadow:0 8px 24px #0f172a14}
h1{font-size:clamp(2rem,3.5vw,3rem);line-height:1.08;margin:.2em 0 0.3em}h2{margin-top:0}.meta{color:var(--soft)}
.grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px}.pill{display:inline-block;background:#ebf8f7;color:#115e59;border-radius:999px;padding:6px 10px;font-size:.78rem;margin:2px 6px 0 0}
.section{margin-top:16px}.section p{margin:.55em 0}
.site-note{border-left:6px solid var(--accent);padding:10px 14px;background:#ecfeff;border-radius:12px}
.foot{margin-top:26px;padding:22px;text-align:center;color:#334155}
footer{background:#0b2530;color:#eaf2f1;margin-top:36px;padding:22px 0} footer .inner{display:flex;gap:16px;flex-wrap:wrap;justify-content:center}
footer a{color:#d9f2ee}.faq{display:grid;grid-template-columns:1fr 1fr;gap:14px} .box{padding:14px;border:1px dashed #cfe4df;border-radius:12px;background:#f0fdfa}
@media(max-width:900px){.grid,.faq{grid-template-columns:1fr}.hero{margin:12px}.card{padding:20px}}