:root {
  --bg: #fdfbf0;
  --card: #ffffff;
  --text: #2f2f2f;
  --muted: #666666;
  --brand: #b22222;
  --line: #e7dcc4;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
}

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

a:hover {
  text-decoration: underline;
}

.container {
  width: min(100%, 1040px);
  margin: 0 auto;
  padding: 24px;
}

.hero {
  background: linear-gradient(135deg, #2f2f2f 0%, #4c1f1f 100%);
  color: #fff;
}

.hero h1 {
  margin: 0 0 12px;
  font-size: clamp(30px, 5vw, 52px);
  line-height: 1.2;
}

.hero p {
  margin: 0;
  max-width: 760px;
  color: rgba(255, 255, 255, 0.92);
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.tag,
.meta span {
  display: inline-block;
  padding: 6px 12px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 14px;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  padding: 14px 24px;
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.nav a {
  font-weight: 700;
}

.section {
  margin: 28px 0;
}

.section h2 {
  margin: 0 0 16px;
  font-size: 28px;
}

.section h3 {
  margin: 0 0 12px;
  font-size: 20px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 10px 25px rgba(47, 47, 47, 0.05);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.list {
  margin: 0;
  padding-left: 20px;
}

.list li + li {
  margin-top: 10px;
}

.highlight {
  color: var(--brand);
  font-weight: 700;
}

.contact-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.contact-list li + li {
  margin-top: 10px;
}

.faq-item + .faq-item {
  margin-top: 14px;
}

.faq-item h3 {
  margin-bottom: 8px;
}

.footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
  padding: 24px;
}

@media (max-width: 640px) {
  .container {
    padding: 18px;
  }

  .nav {
    padding: 12px 18px;
  }

  .card {
    padding: 16px;
  }
}