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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
  color: #1f2a1f;
  background: #f6f9f4;
  line-height: 1.7;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  width: 100%;
  display: block;
  border-radius: 16px;
}

.container {
  width: min(1200px, 90%);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: #f0f6ef;
  border-bottom: 1px solid #d6e4d2;
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: linear-gradient(135deg, #2f6b3f, #6bb26a);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  letter-spacing: 1px;
}

.brand-name {
  font-weight: 700;
  font-size: 1.05rem;
}

.brand-tagline {
  font-size: 0.9rem;
  color: #4d5c4d;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 0.95rem;
}

.site-nav a {
  padding: 6px 10px;
  border-radius: 999px;
  background: #e2f0e0;
}

.hero {
  padding: 60px 0 40px;
  background: linear-gradient(180deg, #f0f6ef 0%, #f6f9f4 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2rem, 2.5vw + 1.2rem, 3rem);
  margin-bottom: 12px;
  color: #1f4427;
}

.hero p {
  margin-top: 0;
  color: #364536;
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin: 20px 0 24px;
}

.button {
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid #2f6b3f;
  font-weight: 600;
}

.button.primary {
  background: #2f6b3f;
  color: #fff;
}

.button.ghost {
  background: transparent;
  color: #2f6b3f;
}

.hero-highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  background: #e7f2e5;
  padding: 16px;
  border-radius: 16px;
}

.highlight-number {
  display: block;
  font-size: 1.2rem;
  font-weight: 700;
  color: #1f4427;
}

.highlight-label {
  font-size: 0.85rem;
  color: #4d5c4d;
}

.section {
  padding: 56px 0;
}

.section-muted {
  background: #eef4ed;
}

.section-title {
  margin-bottom: 28px;
}

.section-title h2 {
  margin: 0 0 10px;
  color: #1f4427;
}

.content-card {
  background: #fff;
  padding: 28px;
  border-radius: 16px;
  box-shadow: 0 12px 30px rgba(31, 68, 39, 0.08);
}

.grid-3,
.grid-2 {
  display: grid;
  gap: 20px;
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.grid-2 {
  margin-top: 20px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
  background: #fff;
  padding: 22px;
  border-radius: 16px;
  box-shadow: 0 10px 24px rgba(31, 68, 39, 0.06);
}

.media-grid {
  display: grid;
  gap: 24px;
}

.media-card {
  display: grid;
  grid-template-columns: minmax(220px, 0.9fr) minmax(220px, 1.1fr);
  gap: 20px;
  align-items: center;
  background: #fff;
  padding: 20px;
  border-radius: 18px;
  box-shadow: 0 10px 24px rgba(31, 68, 39, 0.08);
}

.bullet-list {
  margin: 16px 0 0;
  padding-left: 20px;
}

.bullet-list li {
  margin-bottom: 8px;
}

.faq {
  display: grid;
  gap: 18px;
}

.faq article {
  background: #fff;
  padding: 22px;
  border-radius: 16px;
}

.contact {
  background: #e7f2e5;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  align-items: center;
}

.contact-card {
  background: #fff;
  padding: 22px;
  border-radius: 16px;
  box-shadow: 0 10px 24px rgba(31, 68, 39, 0.08);
}

.site-footer {
  padding: 30px 0;
  background: #1f4427;
  color: #f2f7f2;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: space-between;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.9rem;
}

@media (max-width: 900px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .media-card {
    grid-template-columns: 1fr;
  }

  .site-nav {
    justify-content: flex-start;
  }
}

@media (max-width: 600px) {
  .hero-actions {
    flex-direction: column;
  }

  .site-nav a {
    font-size: 0.9rem;
  }
}