:root {
  --bg: #f6f4ef;
  --bg-accent: #ebe6dc;
  --ink: #1c1b19;
  --muted: #5c5852;
  --line: #d8d2c6;
  --brand: #1f4b3a;
  --brand-soft: #e4efe9;
  --card: #fffcf7;
  --max: 960px;
  --radius: 12px;
  --shadow: 0 10px 30px rgba(28, 27, 25, 0.06);
  --font: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(31, 75, 58, 0.08), transparent 40%),
    linear-gradient(180deg, #f8f5ef 0%, var(--bg) 45%, #f3efe7 100%);
  line-height: 1.7;
}

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

a:hover {
  text-decoration: underline;
}

.wrap {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  background: rgba(246, 244, 239, 0.88);
  border-bottom: 1px solid rgba(216, 210, 198, 0.8);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 68px;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-decoration: none;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.1rem;
  font-size: 0.95rem;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--brand);
}

.hero {
  padding: 4.5rem 0 3rem;
}

.hero-kicker {
  display: inline-block;
  margin-bottom: 0.85rem;
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand);
  font-size: 0.82rem;
  font-weight: 600;
}

.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.hero .lead {
  margin: 0;
  max-width: 38rem;
  color: var(--muted);
  font-size: 1.08rem;
}

.section {
  padding: 2.2rem 0;
}

.section h2 {
  margin: 0 0 0.75rem;
  font-size: 1.35rem;
}

.section p {
  margin: 0 0 1rem;
  color: var(--muted);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 1.25rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.2rem 1.25rem;
  box-shadow: var(--shadow);
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.card p {
  margin: 0;
  font-size: 0.95rem;
}

.contact-list {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
}

.contact-list li {
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}

.contact-list strong {
  display: inline-block;
  min-width: 4.5rem;
  color: var(--ink);
}

.cta-row {
  margin-top: 1.25rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.15rem;
  border-radius: 999px;
  background: var(--brand);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
}

.btn:hover {
  text-decoration: none;
  filter: brightness(1.05);
}

.btn-ghost {
  background: transparent;
  color: var(--brand);
  border: 1px solid var(--brand);
  margin-left: 0.6rem;
}

.product-list {
  display: grid;
  gap: 1rem;
  margin-top: 1.25rem;
}

.product-item {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.2rem 1.25rem;
}

.product-item h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
}

.product-item p {
  margin: 0;
}

.badge {
  flex-shrink: 0;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  background: var(--bg-accent);
  color: var(--muted);
  font-size: 0.82rem;
}

.empty-state {
  padding: 2rem 1.25rem;
  text-align: center;
  background: var(--card);
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  color: var(--muted);
}

.prose {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.4rem 1.35rem;
  box-shadow: var(--shadow);
}

.prose h2 {
  margin-top: 1.6rem;
  font-size: 1.1rem;
}

.prose h2:first-child {
  margin-top: 0;
}

.prose ul {
  margin: 0.5rem 0 0;
  padding-left: 1.2rem;
  color: var(--muted);
}

.notice {
  margin-top: 1.25rem;
  padding: 0.85rem 1rem;
  border-radius: 10px;
  background: #fff7e8;
  color: #7a5a1e;
  font-size: 0.92rem;
}

.site-footer {
  margin-top: 3rem;
  padding: 2rem 0 2.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.1rem;
  margin-bottom: 0.85rem;
}

.footer-links a {
  color: var(--muted);
}

@media (max-width: 800px) {
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .product-item {
    flex-direction: column;
  }

  .btn-ghost {
    margin-left: 0;
    margin-top: 0.6rem;
  }

  .cta-row {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
  }
}