:root {
  --paper: #f4efe2;
  --ink: #241d14;
  --ink-soft: #44392d;
  --line: #9d8d76;
  --accent: #6f5f48;
  --panel: rgba(255, 255, 255, 0.72);
  --shadow: 0 12px 30px rgba(31, 20, 6, 0.12);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 0% 0%, #efe6d2 0%, transparent 40%),
    linear-gradient(120deg, #fffdf8 0%, #f0e8d8 100%);
  font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", Georgia, "Times New Roman", serif;
  line-height: 1.72;
}

a { color: #2f2417; }

.skip-link { position: absolute; left: -9999px; }

.hero {
  position: relative;
  padding: 4.5rem 1.25rem 2.5rem;
  border-bottom: 1px solid #d7c5a9;
}
.hero .brand { width: 86px; height: 86px; border-radius: 18px; border: 1px solid #ccb28d; }
.kicker { letter-spacing: 0.07em; color: var(--ink-soft); text-transform: uppercase; font-size: 0.84rem; margin-top: 0.5rem; }
h1 { font-size: clamp(2rem, 5vw, 3rem); margin: 0.35rem 0 1rem; }
.lead { max-width: 65ch; }

nav ul { list-style: none; display: flex; flex-wrap: wrap; gap: 1rem; margin: 1.5rem; padding: 0; }
nav a { text-decoration: none; border-bottom: 1px solid transparent; }
nav a:hover { border-color: var(--ink); }

main, .timeline, .panel { max-width: 1100px; margin: 1.5rem auto; padding: 0 1.25rem; }

.grid { max-width: 1100px; margin: 2rem auto; display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 1rem; padding: 0 1.25rem; }
.panel {
  background: var(--panel);
  border: 1px solid #dfd0bc;
  box-shadow: var(--shadow);
  border-radius: 12px;
  padding: 1rem 1.1rem;
  margin-bottom: 1rem;
}

.timeline { background: rgba(255,255,255,0.72); border: 1px solid #dbcdb6; border-radius: 12px; padding: 1rem 1.1rem; }
.timeline ol { margin: 0 0 0 1.1rem; padding: 0; }
footer { text-align: center; color: var(--ink-soft); margin: 3rem 0 2rem; font-size: 0.92rem; }

.ad-slot {
  margin-top: 0.8rem;
  padding: 0.52rem 0.75rem;
  border: 1px dashed #6f5f48;
  border-radius: 8px;
  display: inline-block;
  background: #fff;
  color: #554632;
  font-size: 0.95rem;
}

@media (max-width: 900px) {
  .grid { grid-template-columns: 1fr; }
  .hero { padding-top: 3.3rem; }
}