/* 第4套 cn · 庭院游廊 Courtyard */
:root {
  --stone: #efe6d4;
  --ink: #1f2a24;
  --muted: #5c6a62;
  --teal: #1f6f5b;
  --teal-deep: #155445;
  --vermilion: #b23a2f;
  --beam: #c9b48a;
  --tile: #fffdf7;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: auto; }

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(180deg, #e7f0ea 0, transparent 9rem),
    repeating-linear-gradient(90deg, transparent 0 18px, rgba(31, 111, 91, 0.035) 18px 19px),
    var(--stone);
  font-family: "Songti SC", "STKaiti", "KaiTi", "FangSong", "STSong", serif;
  font-size: 17px;
  line-height: 1.85;
}

a { color: var(--teal); }
a:hover { color: var(--vermilion); }
svg { display: inline-block; vertical-align: middle; }
.wrap { width: min(1060px, calc(100% - 2rem)); margin: 0 auto; }

.eave {
  background: var(--teal);
  color: #f6f1e4;
  border-bottom: 8px solid var(--teal-deep);
}
.eave-inner { padding: 1rem 0 0; }
.brand {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  color: #f6f1e4;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.18em;
  font-size: 1.12rem;
}
.brand svg { width: 26px; height: 26px; }
.eave-sub {
  margin: 0.35rem 0 0.8rem;
  font-size: 0.86rem;
  opacity: 0.85;
  letter-spacing: 0.2em;
}
.rail-nav {
  display: flex;
  gap: 0;
  background: var(--teal-deep);
}
.rail-nav a {
  flex: 1;
  text-align: center;
  padding: 0.7rem 0.4rem;
  color: #e7f3ee;
  text-decoration: none;
  border-right: 1px solid rgba(255,255,255,0.12);
}
.rail-nav a:hover { background: rgba(255,255,255,0.08); }
.rail-nav a.on { background: var(--vermilion); color: #fff; }

.corridor { padding: 1.8rem 0 0.3rem; }
.corridor h1, .corridor h2 {
  margin: 0 0 0.75rem;
  color: var(--teal-deep);
}
.corridor h1 { font-size: clamp(1.6rem, 2.8vw, 2.15rem); }
.corridor h2 {
  font-size: 1.32rem;
  padding-left: 0.7rem;
  border-left: 4px solid var(--vermilion);
}

.hero-yard {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 1.2rem;
}
.stone-box {
  background: var(--tile);
  border: 1px solid var(--beam);
  padding: 1.05rem 1.15rem;
  box-shadow: inset 0 0 0 6px rgba(201, 180, 138, 0.18);
}
.stone-box h3 { margin: 0 0 0.5rem; color: var(--vermilion); letter-spacing: 0.12em; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin: 0.3rem 0.4rem 0.3rem 0;
  padding: 0.62rem 1.1rem;
  background: var(--vermilion);
  color: #fff;
  text-decoration: none;
  border: 1px solid #8d2c24;
}
.btn svg { width: 16px; height: 16px; }
.btn:hover { background: #962f26; color: #fff; }
.btn-ghost {
  background: transparent;
  color: var(--teal-deep);
  border-color: var(--teal);
}
.btn-ghost:hover { background: #dceae4; color: var(--teal-deep); }

.gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
.bay {
  background: var(--tile);
  border-top: 3px solid var(--teal);
  border: 1px solid var(--beam);
  border-top-width: 3px;
  border-top-color: var(--teal);
  padding: 1rem 1.05rem 1.15rem;
}
.bay h3 { margin: 0 0 0.4rem; }
.bay svg { width: 20px; height: 20px; margin-right: 0.3rem; color: var(--teal); }

.gates {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}
.gate {
  background: var(--tile);
  padding: 0.9rem;
  border: 1px solid var(--beam);
  text-align: center;
}
.gate strong { display: block; color: var(--teal-deep); margin-bottom: 0.3rem; }

.voices .voice {
  background: var(--tile);
  padding: 0.95rem 1.1rem;
  margin-bottom: 0.75rem;
  border-left: 5px solid var(--beam);
}
.voice footer { color: var(--muted); font-size: 0.88rem; }

.beads {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.65rem;
}
.bead {
  background: var(--teal);
  color: #f3faf6;
  text-align: center;
  padding: 0.9rem 0.5rem;
}
.bead b { display: block; font-size: 1.4rem; color: #ffe7c2; }

.board {
  width: 100%;
  border-collapse: collapse;
  background: var(--tile);
}
.board th, .board td {
  border: 1px solid var(--beam);
  padding: 0.5rem 0.65rem;
  text-align: left;
}
.board th { background: #e4eee8; }

.faq .ask {
  background: var(--tile);
  padding: 0.9rem 1rem;
  margin-bottom: 0.7rem;
  border: 1px solid var(--beam);
}
.faq h3 { margin: 0 0 0.35rem; font-size: 1.02rem; color: var(--teal-deep); }

.site-foot {
  margin-top: 2.4rem;
  padding: 1.3rem 0 2rem;
  background: var(--teal-deep);
  color: #d5e8e1;
  font-size: 0.92rem;
}
.site-foot a { color: #fff; }
.site-foot .safe { color: #f5d38a; font-weight: 700; }
.foot-nav a { margin-right: 1rem; }

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid #f6f1e4;
  color: #f6f1e4;
  padding: 0.28rem 0.45rem;
  cursor: pointer;
}
.nav-toggle svg { width: 18px; height: 18px; }

@media (max-width: 860px) {
  .hero-yard, .gallery, .gates, .beads { grid-template-columns: 1fr; }
  .nav-toggle { display: inline-flex; }
  .eave-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; }
  .rail-nav { display: none; flex-direction: column; }
  .rail-nav.open { display: flex; }
}

@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }