*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: #2c2419;
  background: #faf8f5;
  line-height: 1.6;
}

a {
  color: #8b5a2b;
  text-decoration: none;
}

.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

.site-header {
  background: #fff;
  border-bottom: 1px solid #ece4da;
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: #3d2b1f;
}

.nav a {
  margin-left: 1.5rem;
  color: #5c4a3a;
}

.nav a:hover {
  color: #8b5a2b;
}

.hero {
  background: linear-gradient(135deg, #3d2b1f 0%, #6b4c35 100%);
  color: #fff;
  padding: 4.5rem 0;
}

.hero-tag {
  opacity: 0.85;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.85rem;
}

.hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin: 0.5rem 0 1rem;
  line-height: 1.25;
}

.hero-desc {
  max-width: 640px;
  opacity: 0.92;
}

.btn-primary {
  display: inline-block;
  margin-top: 1.5rem;
  padding: 0.75rem 1.5rem;
  background: #d4a574;
  color: #2c2419;
  border-radius: 6px;
  font-weight: 600;
}

.btn-primary:hover {
  background: #e0b888;
}

.section {
  padding: 3rem 0;
}

.section h2 {
  margin-top: 0;
  font-size: 1.6rem;
}

.section-note {
  color: #7a6a5a;
  font-size: 0.95rem;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.product-card {
  background: #fff;
  border: 1px solid #ece4da;
  border-radius: 10px;
  overflow: hidden;
}

.product-image.placeholder {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #eee5da;
  color: #8b7355;
  font-weight: 600;
}

.product-card h3 {
  margin: 1rem 1rem 0.5rem;
  font-size: 1.05rem;
}

.product-card p {
  margin: 0 1rem 1.25rem;
  color: #6b5b4b;
  font-size: 0.95rem;
}

.about p,
.contact ul {
  color: #4a4038;
}

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

.contact li {
  margin-bottom: 0.5rem;
}

.site-footer {
  background: #3d2b1f;
  color: #e8dfd4;
  padding: 2rem 0;
  margin-top: 1rem;
}

.site-footer a {
  color: #d4a574;
}

@media (max-width: 640px) {
  .nav a {
    margin-left: 1rem;
    font-size: 0.9rem;
  }
}