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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
  color: #1b1c1e;
  background: #f2f3ea;
  line-height: 1.65;
}

a {
  color: #2a4a36;
  text-decoration: none;
}

a:hover {
  color: #1c3527;
  text-decoration: underline;
}

img {
  max-width: 100%;
  display: block;
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  background: linear-gradient(135deg, #142a1d 0%, #1c3527 45%, #2a4a36 100%);
  color: #fffefb;
  border-bottom: 1px solid rgba(255, 254, 251, 0.08);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  color: inherit;
  text-decoration: none;
}

.brand:hover {
  text-decoration: none;
  opacity: 0.95;
}

.brand-mark {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(145deg, #c19a5b, #a37e41);
  display: grid;
  place-items: center;
  font-family: "Songti SC", "STSong", SimSun, serif;
  font-size: 18px;
  font-weight: 700;
  color: #2a2008;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
}

.brand-text strong {
  display: block;
  font-size: 20px;
  letter-spacing: 0.04em;
}

.brand-text span {
  display: block;
  margin-top: 2px;
  font-size: 13px;
  opacity: 0.82;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}

.site-nav a {
  color: rgba(255, 254, 251, 0.92);
  font-size: 15px;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a.active {
  color: #fffefb;
  border-bottom-color: #c19a5b;
  text-decoration: none;
}

.hero {
  padding: 56px 0 48px;
  background:
    radial-gradient(circle at top right, rgba(193, 154, 91, 0.18), transparent 42%),
    linear-gradient(180deg, #fffefb 0%, #f7f8f0 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 36px;
  align-items: center;
}

.hero h1 {
  margin: 0 0 12px;
  font-family: "Songti SC", "STSong", SimSun, serif;
  font-size: clamp(32px, 4vw, 44px);
  line-height: 1.2;
  color: #142a1d;
}

.hero .lead {
  margin: 0 0 24px;
  font-size: 18px;
  color: #57585c;
}

.hero-card {
  background: #fffefb;
  border: 1px solid #e3e3d0;
  border-radius: 20px;
  padding: 28px;
  box-shadow: 0 18px 40px rgba(28, 53, 39, 0.08);
}

.hero-card h2 {
  margin: 0 0 12px;
  font-size: 20px;
  color: #1c3527;
}

.hero-card ul {
  margin: 0;
  padding-left: 18px;
  color: #57585c;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  text-decoration: none;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background: #2a4a36;
  color: #fffefb;
}

.btn-primary:hover {
  background: #1c3527;
  color: #fffefb;
}

.btn-secondary {
  background: #fffefb;
  color: #2a4a36;
  border-color: #c19a5b;
}

.section {
  padding: 48px 0;
}

.section-title {
  margin: 0 0 8px;
  font-size: 28px;
  color: #142a1d;
}

.section-desc {
  margin: 0 0 28px;
  color: #57585c;
}

.feature-grid,
.product-grid,
.info-grid {
  display: grid;
  gap: 20px;
}

.feature-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.product-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.info-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  background: #fffefb;
  border: 1px solid #e3e3d0;
  border-radius: 18px;
  padding: 24px;
}

.card h3 {
  margin: 0 0 10px;
  font-size: 18px;
  color: #1c3527;
}

.card p,
.card li {
  color: #57585c;
}

.product-card .product-thumb {
  height: 160px;
  border-radius: 14px;
  margin-bottom: 16px;
  background: linear-gradient(145deg, #eef4ea, #dfe9d7);
  display: grid;
  place-items: center;
  color: #2a4a36;
  font-size: 42px;
}

.product-card .price {
  margin-top: 10px;
  font-size: 22px;
  font-weight: 700;
  color: #b8552e;
}

.product-card .price small {
  font-size: 14px;
  font-weight: 400;
  color: #9b9c9f;
  text-decoration: line-through;
  margin-left: 8px;
}

.legal-page {
  padding: 40px 0 56px;
}

.legal-page h1 {
  margin: 0 0 8px;
  font-size: 32px;
  color: #142a1d;
}

.legal-meta {
  margin: 0 0 28px;
  color: #9b9c9f;
  font-size: 14px;
}

.legal-page h2 {
  margin: 28px 0 10px;
  font-size: 20px;
  color: #1c3527;
}

.legal-page p,
.legal-page li {
  color: #57585c;
}

.legal-page ol,
.legal-page ul {
  padding-left: 22px;
}

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

.contact-list li {
  padding: 10px 0;
  border-bottom: 1px solid #ececdf;
}

.contact-list li:last-child {
  border-bottom: 0;
}

.site-footer {
  margin-top: 24px;
  background: #142a1d;
  color: rgba(255, 254, 251, 0.88);
  padding: 32px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 24px;
}

.site-footer h3 {
  margin: 0 0 12px;
  font-size: 16px;
  color: #fffefb;
}

.site-footer p,
.site-footer a {
  color: rgba(255, 254, 251, 0.82);
  font-size: 14px;
}

.site-footer a:hover {
  color: #c19a5b;
}

.footer-bottom {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 254, 251, 0.12);
  font-size: 13px;
  color: rgba(255, 254, 251, 0.68);
}

.notice-banner {
  background: #fff7e8;
  border: 1px solid #f0d7a8;
  color: #6b4d1f;
  border-radius: 12px;
  padding: 14px 16px;
  margin-bottom: 24px;
  font-size: 14px;
}

@media (max-width: 900px) {
  .hero-grid,
  .feature-grid,
  .product-grid,
  .info-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .site-header .container {
    flex-direction: column;
    align-items: flex-start;
  }
}