:root {
  color-scheme: light dark;
  --ink: #24221e;
  --muted: #6f6b63;
  --cinnabar: #a92d31;
  --jade: #2f7568;
  --gold: #b58a3d;
  --ivory: #f7f2e7;
  --paper: #fffdf7;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: ui-serif, "Songti TC", "Noto Serif TC", Georgia, serif;
  color: var(--ink);
  background: var(--ivory);
  line-height: 1.72;
}

a { color: var(--jade); font-weight: 700; }

.shell {
  width: min(880px, calc(100% - 32px));
  margin: 0 auto;
  padding: 52px 0;
}

.hero {
  padding: clamp(28px, 6vw, 54px);
  border: 1px solid color-mix(in srgb, var(--gold) 45%, transparent);
  border-radius: 24px 6px 24px 6px;
  background: var(--paper);
  box-shadow: 0 22px 60px rgba(59, 45, 30, 0.10);
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--cinnabar);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(2rem, 5vw, 3.8rem);
  line-height: 1.16;
}

h2 { margin: 42px 0 14px; font-size: 1.55rem; }
h3 { margin: 0 0 6px; font-size: 1.06rem; }
p { margin: 12px 0 0; color: var(--muted); }

.english {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.96rem;
}

article {
  padding: 20px;
  margin: 12px 0;
  border-left: 3px solid var(--cinnabar);
  border-radius: 4px 14px 14px 4px;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #f5efe4;
    --muted: #c9c0b2;
    --cinnabar: #e06a6e;
    --jade: #70b7a7;
    --gold: #d2aa63;
    --ivory: #171612;
    --paper: #23211c;
  }
}

@media (max-width: 640px) {
  .shell { width: min(100% - 24px, 880px); padding: 26px 0; }
}