:root {
  --bg: #f3efe7;
  --surface: rgba(255, 255, 255, 0.78);
  --surface-border: rgba(83, 67, 46, 0.12);
  --text: #2a231b;
  --muted: #645849;
  --accent: #9d5c2f;
  --accent-strong: #7d451d;
  --shadow: 0 20px 60px rgba(72, 51, 27, 0.08);
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(255, 222, 176, 0.42), transparent 34%),
    radial-gradient(circle at top right, rgba(198, 222, 199, 0.35), transparent 30%),
    linear-gradient(180deg, #f7f2ea 0%, var(--bg) 100%);
}

a {
  color: var(--accent-strong);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.shell {
  width: min(1040px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 40px 0 56px;
}

.hero {
  margin-bottom: 20px;
}

.page-head {
  margin-bottom: 20px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  padding: 28px;
}

.grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid.single {
  grid-template-columns: minmax(0, 1fr);
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0 0 12px;
  line-height: 1.08;
}

h1 {
  font-size: clamp(2.6rem, 6vw, 4.8rem);
}

h2 {
  font-size: 1.2rem;
}

p,
li {
  color: var(--muted);
  line-height: 1.75;
}

.lead {
  max-width: 720px;
  margin: 0;
  font-size: 1.05rem;
}

.meta {
  margin-top: 16px;
  font-size: 0.92rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  background: var(--accent);
  color: #fffaf3;
  font-weight: 600;
}

.button:hover {
  background: var(--accent-strong);
  text-decoration: none;
}

.button.secondary {
  background: transparent;
  border: 1px solid rgba(125, 69, 29, 0.18);
  color: var(--accent-strong);
}

.back-link {
  color: inherit;
}

ul {
  margin: 0;
  padding-left: 20px;
}

@media (max-width: 780px) {
  .shell {
    width: min(100vw - 24px, 700px);
    padding: 24px 0 36px;
  }

  .card {
    padding: 22px;
    border-radius: 20px;
  }

  .grid {
    grid-template-columns: 1fr;
  }
}