:root{
  --bg:#f6f3ee;
  --ink:#1a1714;
  --muted:#6a6258;
  --line:#e2d9ce;
  --soft:#fffdf9;
  --accent:#c45c26;
  --accent2:#2f5d50;
  --max:1120px;
  --radius:18px;
  --shadow:0 18px 40px rgba(26,23,20,.08);
  font-family:"Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--ink);
  background:
    radial-gradient(1200px 500px at 10% -10%,#ffe7d4 0%,transparent 55%),
    radial-gradient(900px 420px at 90% 0%,#d9ebe4 0%,transparent 50%),
    var(--bg);
  line-height:1.75;
}
a{color:var(--accent2);text-decoration:none}
a:hover{color:var(--accent)}
img{max-width:100%;height:auto;display:block}
.skip{position:absolute;left:-999px;top:auto}
.skip:focus{left:1rem;top:1rem;background:#fff;padding:.5rem 1rem;z-index:99}

.site-header{
  position:sticky;top:0;z-index:40;
  backdrop-filter:blur(10px);
  background:rgba(246,243,238,.88);
  border-bottom:1px solid var(--line);
}
.nav-row{
  max-width:var(--max);margin:0 auto;
  padding:.85rem 1.1rem;
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
}
.brand{display:flex;align-items:center;gap:.7rem;color:inherit;font-weight:700}
.brand img{width:40px;height:40px;border-radius:10px}
.brand span{font-size:1.05rem;letter-spacing:.02em}
.menu-toggle{
  display:none;border:1px solid var(--line);background:var(--soft);
  border-radius:10px;padding:.45rem .7rem;cursor:pointer;color:var(--ink);
}
.nav-links{display:flex;gap:1.1rem;align-items:center;flex-wrap:wrap}
.nav-links a{color:var(--ink);font-size:.95rem}
.nav-links a:hover{color:var(--accent)}

.ads-slot{max-width:var(--max);margin:0 auto;padding:1rem 1.1rem 0}

.bento-hero{max-width:var(--max);margin:0 auto;padding:1.2rem 1.1rem 0}
.bento-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr;
  grid-template-rows:auto auto;
  gap:1rem;
}
.bento-brand{
  grid-column:1/2;grid-row:1/3;
  background:linear-gradient(160deg,#2f5d50,#1d3b34);
  color:#f7fff9;border-radius:var(--radius);padding:1.8rem 1.5rem;
  box-shadow:var(--shadow);display:flex;flex-direction:column;justify-content:space-between;min-height:340px;
}
.bento-brand h1{margin:0 0 .8rem;font-size:clamp(1.7rem,3vw,2.35rem);line-height:1.25}
.bento-brand p{margin:0;color:#d7ebe4}
.bento-cta{
  margin-top:1.4rem;display:inline-flex;align-items:center;justify-content:center;
  background:var(--accent);color:#fff;padding:.75rem 1.2rem;border-radius:999px;font-weight:600;width:fit-content;
}
.bento-cta:hover{color:#fff;filter:brightness(1.05)}
.bento-tile{
  background:var(--soft);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);
}
.bento-tile img{width:100%;aspect-ratio:16/10;object-fit:cover}
.bento-tile .cap{padding:.85rem 1rem;font-size:.92rem;color:var(--muted)}
.bento-note{
  background:#fff7ef;border:1px solid #f0d7c0;border-radius:var(--radius);
  padding:1.1rem 1rem;color:#5c4030;
}
.bento-note strong{display:block;margin-bottom:.35rem;color:var(--accent)}

.wrap{max-width:var(--max);margin:0 auto;padding:1.5rem 1.1rem 3rem}
.bento-prose h2,.bento-tiles h2,.faq h2{font-size:1.45rem;margin:2rem 0 .8rem}
.bento-prose p,.bento-tiles p,.faq p,.faq li{color:#2c2722}
.bento-prose p+p{margin-top:1rem}
.lead{font-size:1.08rem}

.bento-tiles{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin:1.5rem 0;
}
.tile-card{
  background:var(--soft);border:1px solid var(--line);border-radius:16px;overflow:hidden;
}
.tile-card img{width:100%;aspect-ratio:4/3;object-fit:cover}
.tile-card figcaption{padding:.9rem 1rem;font-size:.9rem;color:var(--muted)}

.xlinks{
  margin:2rem 0;padding:1.2rem 1.25rem;border-radius:16px;
  background:linear-gradient(90deg,#fff,#f3ebe2);border:1px solid var(--line);
}
.xlinks h2{margin:0 0 .7rem;font-size:1.2rem}
.xlinks ul{margin:0;padding-left:1.2rem}
.xlinks li{margin:.35rem 0}

.faq details{
  background:var(--soft);border:1px solid var(--line);border-radius:12px;
  padding:.9rem 1rem;margin:.7rem 0;
}
.faq summary{cursor:pointer;font-weight:600}

.site-footer{
  border-top:1px solid var(--line);background:#efe8df;padding:2rem 1.1rem;
}
.footer-inner{max-width:var(--max);margin:0 auto;display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between;color:var(--muted);font-size:.92rem}
.footer-inner a{color:var(--ink)}

.page-main{max-width:760px;margin:0 auto;padding:1.5rem 1.1rem 3rem}
.page-main h1{font-size:1.8rem;margin:0 0 1rem}
.err-box{text-align:center;padding:4rem 1rem}
.err-box h1{font-size:2rem}

@media (max-width:900px){
  .bento-grid{grid-template-columns:1fr 1fr}
  .bento-brand{grid-column:1/-1;grid-row:auto;min-height:auto}
  .bento-tiles{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  .menu-toggle{display:inline-flex}
  .nav-links{
    display:none;position:absolute;left:0;right:0;top:64px;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fffdf9;border-bottom:1px solid var(--line);padding:.5rem 0;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:.85rem 1.2rem;border-top:1px solid var(--line)}
  .bento-grid,.bento-tiles{grid-template-columns:1fr}
}