:root {
  --primary: #c97b84;
  --primary-dark: #a85c66;
  --bg: #fdf8f6;
  --text: #333;
  --muted: #888;
  --max-width: 960px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
}

a {
  color: inherit;
}

/* ---------- Header ---------- */
header {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  padding: 60px 20px;
  text-align: center;
}

header h1 {
  font-size: 2.2rem;
  margin-bottom: 12px;
  letter-spacing: 2px;
}

header p {
  font-size: 1.1rem;
  opacity: 0.92;
}

/* ---------- Nav ---------- */
nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 30px;
  background: #fff;
  padding: 16px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  position: sticky;
  top: 0;
  z-index: 10;
}

nav a {
  color: var(--primary-dark);
  text-decoration: none;
  font-weight: 600;
}

nav a:hover {
  color: var(--primary);
}

/* ---------- Sections ---------- */
section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 50px 20px;
}

section h2 {
  color: var(--primary-dark);
  font-size: 1.6rem;
  margin-bottom: 20px;
  border-left: 4px solid var(--primary);
  padding-left: 12px;
}

.about p {
  margin-bottom: 14px;
  color: #555;
}

/* ---------- Hero image placeholder ---------- */
.hero-img {
  display: block;
  width: 100%;
  max-width: var(--max-width);
  height: 280px;
  margin: 0 auto 40px;
  border-radius: 14px;
  object-fit: cover;
  background: linear-gradient(135deg, #f3d9dd, #e8b9c0);
}

/* ---------- Cards ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.card {
  background: #fff;
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
  transition: transform .2s ease;
}

.card:hover {
  transform: translateY(-4px);
}

.card h3 {
  color: var(--primary);
  margin-bottom: 10px;
}

.card p {
  color: var(--muted);
  font-size: 0.95rem;
}

.card-img {
  display: block;
  width: 100%;
  height: 150px;
  margin-bottom: 14px;
  border-radius: 8px;
  object-fit: cover;
  background: linear-gradient(135deg, #f7e3e6, #eccad1);
}

/* ---------- Footer ---------- */
footer {
  background: #2b2b2b;
  color: #bbb;
  text-align: center;
  padding: 30px 20px;
  font-size: 0.9rem;
}

footer a {
  color: #ddd;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

.beian {
  margin-top: 10px;
}

/* ---------- Beian page ---------- */
.beian-page {
  max-width: 760px;
}

.beian-page table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  background: #fff;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
  border-radius: 12px;
  overflow: hidden;
}

.beian-page th,
.beian-page td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid #f0e6e8;
  font-size: 0.95rem;
}

.beian-page th {
  background: var(--primary);
  color: #fff;
}

.beian-page td a {
  color: var(--primary-dark);
  text-decoration: none;
}

.beian-page td a:hover {
  text-decoration: underline;
}

.back-link {
  display: inline-block;
  margin-top: 20px;
  color: var(--primary-dark);
  font-weight: 600;
  text-decoration: none;
}

.back-link:hover {
  color: var(--primary);
}

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
  header {
    padding: 40px 16px;
  }

  header h1 {
    font-size: 1.7rem;
  }

  header p {
    font-size: 1rem;
  }

  nav {
    gap: 16px;
    padding: 12px;
  }

  nav a {
    font-size: 0.95rem;
  }

  section {
    padding: 36px 16px;
  }

  section h2 {
    font-size: 1.3rem;
  }

  .hero-img {
    height: 180px;
  }

  footer {
    font-size: 0.82rem;
  }
}

@media (max-width: 400px) {
  nav {
    gap: 12px;
  }

  nav a {
    font-size: 0.88rem;
  }
}