:root{
  color-scheme: light;
  --bg:#f5eee4;
  --bg-2:#ebe0d1;
  --paper:#fffaf3;
  --ink:#1f1915;
  --ink-2:#3c332d;
  --muted:#665a50;
  --line:rgba(31,25,21,.12);
  --line-2:rgba(31,25,21,.18);
  --accent:#b2743e;
  --accent-2:#60786c;
  --accent-3:#8e5d52;
  --shadow:0 26px 64px rgba(28,20,15,.10);
  --shadow-soft:0 10px 24px rgba(28,20,15,.06);
  --radius-xl:30px;
  --radius-lg:22px;
  --radius-md:16px;
  --max:1180px;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",system-ui,sans-serif;
  line-height:1.75;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  min-width:320px;
  color:var(--ink);
  background:
    radial-gradient(circle at 10% 8%, rgba(178,116,62,.14), transparent 18%),
    radial-gradient(circle at 90% 14%, rgba(96,120,108,.12), transparent 16%),
    linear-gradient(180deg, #faf4eb 0%, var(--bg) 54%, #f0e5d6 100%);
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}

body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(0,0,0,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,.025) 1px, transparent 1px);
  background-size:48px 48px;
  opacity:.34;
  mask-image:linear-gradient(180deg, rgba(0,0,0,.28), transparent 88%);
}

a{color:inherit;text-decoration:none}
p,ul,ol,h1,h2,h3,dl{margin:0}
ul,ol{padding:0}
li{list-style:none}
strong{font-weight:700}

.skip-link{
  position:absolute;
  left:-999px;
  top:10px;
  z-index:50;
  padding:10px 14px;
  border-radius:999px;
  background:#fff;
  color:#111;
  box-shadow:var(--shadow-soft);
}
.skip-link:focus{left:12px}

.shell{
  width:min(var(--max), calc(100vw - 24px));
  margin:0 auto;
  padding:16px 0 42px;
  position:relative;
  z-index:1;
}

.masthead{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:10px 4px 22px;
}

.brand{
  display:flex;
  align-items:center;
  gap:12px;
  min-width:0;
}

.mark{
  width:46px;
  height:46px;
  flex:0 0 auto;
  display:grid;
  place-items:center;
  border-radius:15px;
  background:linear-gradient(135deg, #f5d8b0 0%, #b2743e 55%, #724b39 100%);
  color:#1a120d;
  box-shadow:0 12px 28px rgba(0,0,0,.18);
  font:800 18px/1 "Songti SC","Noto Serif SC","Iowan Old Style",serif;
}

.brand-copy{
  min-width:0;
}

.brand-copy strong{
  display:block;
  font-size:15px;
  line-height:1.15;
  letter-spacing:.04em;
}

.brand-copy span{
  display:block;
  margin-top:3px;
  color:var(--muted);
  font-size:12px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

.nav{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
  justify-content:flex-end;
}

.nav a{
  padding:8px 12px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.46);
  color:var(--ink-2);
  transition:transform .18s ease, background .18s ease, border-color .18s ease;
  white-space:nowrap;
}

.nav a:hover,
.nav a:focus-visible{
  transform:translateY(-1px);
  background:rgba(178,116,62,.08);
  border-color:rgba(178,116,62,.18);
  outline:none;
}

main{display:grid;gap:18px}

.hero,
.section,
.about-card,
.answer-card,
.footer{
  border:1px solid rgba(255,255,255,.12);
  background:linear-gradient(180deg, rgba(255,250,243,.97), rgba(245,235,220,.98));
  box-shadow:var(--shadow);
  border-radius:var(--radius-xl);
}

.hero{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(280px,.85fr);
  gap:18px;
  padding:30px;
}

.hero-copy{
  display:grid;
  align-content:start;
  gap:16px;
  min-width:0;
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  width:fit-content;
  padding:7px 11px;
  border-radius:999px;
  border:1px solid rgba(178,116,62,.16);
  background:rgba(178,116,62,.08);
  color:#8a572c;
  font-size:12px;
  letter-spacing:.06em;
}

h1{
  font-family:"Songti SC","Noto Serif SC","Iowan Old Style",serif;
  font-size:clamp(42px,6vw,80px);
  line-height:.96;
  letter-spacing:-.05em;
  max-width:10ch;
}

.lead{
  max-width:62ch;
  color:var(--ink-2);
  font-size:17px;
  line-height:1.9;
}

.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}

.hero-points span{
  display:inline-flex;
  align-items:center;
  min-height:36px;
  padding:7px 12px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.6);
  color:var(--ink-2);
  font-size:13px;
}

.answer-card{
  padding:22px;
  display:grid;
  align-content:start;
  gap:14px;
}

.answer-card h2,
.section-head h2{
  font-family:"Songti SC","Noto Serif SC","Iowan Old Style",serif;
  font-size:clamp(24px,3vw,34px);
  line-height:1.15;
  letter-spacing:-.03em;
}

.answer-card p,
.meaning p,
.context-note,
.note-card p,
.about-note,
.footer p{
  color:var(--ink-2);
}

.answer-note{
  display:grid;
  gap:6px;
  padding:14px 16px;
  border-radius:20px;
  border:1px solid rgba(178,116,62,.14);
  background:linear-gradient(180deg, rgba(255,255,255,.94), rgba(247,236,223,.96));
}

.answer-note strong{
  font-size:14px;
}

.answer-note span{
  color:var(--muted);
  font-size:13px;
}

.section,
.about-card{
  padding:24px;
}

.section-head{
  display:grid;
  gap:8px;
  margin-bottom:16px;
}

.section-head p{
  color:var(--muted);
}

.meaning-stack{
  display:grid;
  gap:12px;
}

.meaning{
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  gap:14px;
  align-items:start;
  padding:16px;
  border-radius:22px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.68);
}

.meaning.primary{
  background:linear-gradient(180deg, rgba(255,255,255,.94), rgba(247,238,223,.96));
}

.meaning-index{
  width:34px;
  height:34px;
  flex:0 0 auto;
  display:grid;
  place-items:center;
  border-radius:12px;
  background:linear-gradient(135deg, var(--accent), #d8a56d);
  color:#fff;
  font-size:13px;
  font-weight:700;
}

.meaning h3{
  font-size:18px;
  line-height:1.3;
}

.meaning p{
  margin-top:6px;
  font-size:14px;
}

.context-grid{
  display:grid;
  grid-template-columns:repeat(2, minmax(0,1fr));
  gap:12px;
}

.context-item{
  padding:16px;
  border-radius:22px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.7);
}

.context-item dt{
  font-weight:700;
  font-size:14px;
  margin-bottom:8px;
}

.context-item dd{
  color:var(--ink-2);
  font-size:14px;
}

.context-note{
  margin-top:14px;
  font-size:14px;
}

.split-note{
  display:grid;
  grid-template-columns:repeat(2, minmax(0,1fr));
  gap:14px;
}

.note-card{
  padding:18px;
  border-radius:24px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.72);
}

.note-card h3{
  margin-bottom:8px;
  font-size:17px;
}

.faq-list{
  display:grid;
  gap:12px;
}

details{
  border:1px solid var(--line);
  border-radius:22px;
  background:rgba(255,255,255,.72);
  overflow:hidden;
}

summary{
  list-style:none;
  cursor:pointer;
  padding:16px 18px;
  font-weight:700;
}

summary::-webkit-details-marker{display:none}

details p{
  padding:0 18px 18px;
  color:var(--ink-2);
  font-size:14px;
}

.footer{
  margin-top:18px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:16px 18px;
}

.footer a{
  padding:8px 12px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.5);
}

.about-card{
  display:grid;
  gap:16px;
}

.about-card h1{
  max-width:10ch;
  font-size:clamp(36px,5.4vw,64px);
}

.about-note{
  font-size:15px;
}

.shell-about main{
  min-height:56vh;
}

@media (max-width: 940px){
  .hero{
    grid-template-columns:1fr;
  }
  .context-grid,
  .split-note{
    grid-template-columns:1fr;
  }
}

@media (max-width: 720px){
  .shell{
    width:min(100vw - 18px, var(--max));
    padding:10px 0 32px;
  }
  .masthead{
    flex-direction:column;
    align-items:flex-start;
    padding:8px 2px 16px;
  }
  .nav{
    width:100%;
    justify-content:flex-start;
    overflow-x:auto;
    flex-wrap:nowrap;
    scrollbar-width:none;
    padding-bottom:2px;
  }
  .nav::-webkit-scrollbar{display:none}
  .hero,
  .section,
  .about-card,
  .footer{
    border-radius:26px;
  }
  .hero,
  .section,
  .about-card{
    padding:18px;
  }
  h1{
    font-size:clamp(34px,11vw,48px);
  }
  .lead{
    font-size:15px;
    line-height:1.84;
  }
}

@media (max-width: 420px){
  .hero-points{
    gap:8px;
  }
  .hero-points span{
    min-height:34px;
    font-size:12px;
  }
  .answer-card,
  .meaning,
  .context-item,
  .note-card{
    padding:16px;
  }
}