:root {
  --bg: #f7f7f5;
  --surface: #ffffff;
  --border: #e5e5e0;
  --text: #1f2933;
  --muted: #667085;
  --meta: #9ca3af;
  --shadow: 0 12px 40px rgba(15, 23, 42, 0.06);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", "Noto Sans SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  padding: 3.5rem 1.5rem 4rem;
}

.page {
  width: min(780px, 100%);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.8rem;
}

.intro {
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.meta {
  text-transform: uppercase;
  letter-spacing: 0.3em;
  font-size: 0.7rem;
  color: var(--meta);
  margin: 0 0 0.6rem;
}

h1 {
  margin: 0 0 0.9rem;
  font-size: clamp(2.2rem, 4vw, 3rem);
  font-weight: 600;
}

.tagline {
  margin: 0;
  font-size: 1.1rem;
  color: #3f3f46;
}

.block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1.8rem;
  box-shadow: var(--shadow);
}

.block h2,
.block h3 {
  margin: 0 0 0.8rem;
  font-size: 1.35rem;
}

.block h3 {
  font-size: 1.2rem;
  color: #2e3440;
}

.block p {
  margin: 0;
  color: #3f3f46;
}

.block p + p {
  margin-top: 0.8rem;
}

.list {
  margin: 1rem 0 0;
  padding-left: 1.2rem;
  color: #3f3f46;
}

.columns {
  display: grid;
  gap: 1rem;
}

.columns article {
  padding: 1.2rem 1.2rem 1.3rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: #fcfcfb;
}

@media (min-width: 720px) {
  .columns {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.label {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--meta);
  margin: 0 0 0.3rem;
}

.columns h4 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
}

.info dl {
  margin: 0;
  display: grid;
  gap: 1rem;
}

.info dl div {
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.info dl div:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

dt {
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 0.2rem;
}

dd {
  margin: 0;
  font-size: 1rem;
  color: var(--text);
}

.en {
  display: block;
  margin-top: 0.4rem;
  font-size: 0.9rem;
  color: var(--muted);
}

@media (max-width: 520px) {
  body {
    padding: 2.5rem 1.1rem 3rem;
  }

  .block {
    padding: 1.5rem;
  }
}