:root {
  --night: #18234b;
  --deep: #24315e;
  --pink: #bb1558;
  --rose: #df4d87;
  --gold: #ffd366;
  --soft: #fff7fb;
  --ink: #172033;
  --muted: #667085;
  --line: rgba(255,255,255,.22);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Tahoma, "Noto Sans Thai", Arial, sans-serif;
  color: var(--ink);
  background: #f8f1f7;
  line-height: 1.78;
}
a { color: #a20d4b; font-weight: 700; text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }
.site-header {
  background:
    radial-gradient(circle at 20% 20%, rgba(255,211,102,.28), transparent 24rem),
    radial-gradient(circle at 80% 0%, rgba(223,77,135,.35), transparent 22rem),
    linear-gradient(160deg, var(--deep), var(--night) 62%, #341d4d);
  color: white;
}
.topbar {
  max-width: 1120px;
  margin: 0 auto;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: white;
}
.brand img { width: 44px; height: 44px; border-radius: 50%; background: white; padding: 4px; }
.brand strong { display: block; font-size: 18px; line-height: 1.35; }
.nav-actions { display: flex; flex-wrap: wrap; gap: 10px; justify-content: flex-end; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 16px;
  border-radius: 8px;
  color: white;
  background: linear-gradient(90deg, var(--pink), var(--rose));
  box-shadow: 0 10px 30px rgba(187,21,88,.28);
}
.button.secondary { background: rgba(255,255,255,.14); box-shadow: none; border: 1px solid var(--line); }
.hero {
  max-width: 1120px;
  margin: 0 auto;
  padding: 28px 20px 56px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  gap: 32px;
  align-items: center;
}
.eyebrow { color: var(--gold); font-weight: 700; margin: 0 0 10px; }
h1 { font-size: clamp(34px, 5vw, 62px); line-height: 1.12; margin: 0 0 18px; letter-spacing: 0; }
.hero p { color: #f7eaf2; font-size: 18px; margin: 0 0 22px; }
.hero-media {
  background: rgba(255,255,255,.08);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
}
.hero-media img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: contain;
  border-radius: 6px;
  background: white;
}
main { max-width: 1120px; margin: 0 auto; padding: 34px 20px 60px; }
.section-band {
  background: white;
  border-radius: 8px;
  padding: 24px;
  margin: 0 0 24px;
  box-shadow: 0 14px 42px rgba(30,35,80,.08);
}
.toc-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  padding: 0;
  list-style: none;
}
.toc-grid li a {
  min-height: 100%;
  display: block;
  padding: 14px;
  border: 1px solid #ead5e2;
  border-radius: 8px;
  background: #fff9fc;
  color: #5c1234;
}
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 24px;
}
article h2 { font-size: 28px; line-height: 1.35; margin: 30px 0 10px; color: #273264; }
article h3 { font-size: 21px; line-height: 1.45; margin: 22px 0 8px; color: #8c1748; }
.lead { font-size: 19px; color: #34405f; }
.note {
  border-left: 5px solid var(--pink);
  padding: 14px 18px;
  background: #fff2f8;
  border-radius: 0 8px 8px 0;
}
.content-image {
  border-radius: 8px;
  margin: 22px 0;
  border: 1px solid #ead5e2;
  background: #fff;
}
.quick-answer {
  background: linear-gradient(135deg, #fff4d5, #fff8ee);
  border: 1px solid #ffe3a3;
  border-radius: 8px;
  padding: 18px;
}
.audio-panel {
  background:
    radial-gradient(circle at 15% 15%, rgba(255,211,102,.3), transparent 18rem),
    linear-gradient(135deg, #202c5b, #421e55);
  color: white;
  border-radius: 8px;
  padding: 22px;
  margin-top: 30px;
}
.audio-panel a { color: white; }
.audio-list { display: grid; gap: 10px; margin-top: 16px; }
.audio-list a {
  display: block;
  border: 1px solid rgba(255,255,255,.24);
  border-radius: 8px;
  padding: 12px;
  background: rgba(255,255,255,.1);
}
aside {
  position: sticky;
  top: 16px;
  align-self: start;
}
.sidebox {
  background: white;
  border-radius: 8px;
  padding: 18px;
  margin-bottom: 16px;
  box-shadow: 0 10px 28px rgba(30,35,80,.08);
}
.keyword-links { display: flex; flex-wrap: wrap; gap: 8px; }
.keyword-links a {
  border-radius: 999px;
  padding: 7px 10px;
  background: #f9e5ef;
  color: #7d1640;
  font-size: 14px;
}
.breadcrumbs, .mini-links { font-size: 14px; color: var(--muted); }
.mini-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
footer {
  background: #151c3b;
  color: #f5eaf1;
  padding: 34px 20px;
}
footer .inner { max-width: 1120px; margin: 0 auto; }
footer a { color: #ffd366; }
@media (max-width: 860px) {
  .topbar, .hero { display: block; }
  .nav-actions { justify-content: flex-start; margin-top: 14px; }
  .hero-media { margin-top: 24px; }
  .toc-grid, .article-layout { grid-template-columns: 1fr; }
  aside { position: static; }
  h1 { font-size: 36px; }
}
@media (max-width: 520px) {
  main { padding: 20px 14px 44px; }
  .section-band { padding: 18px; }
  .button { width: 100%; }
  .toc-grid li a { font-size: 15px; }
}