/* 大森林全球物流 - 产品页共用样式 */
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Microsoft YaHei", "PingFang SC", sans-serif;
  line-height: 1.6;
  color: #1a2e1f;
  background: #f5f9f4;
}
a { text-decoration: none; color: inherit; }

.navbar {
  position: fixed; top: 0; left: 0; right: 0;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px rgba(20,80,40,0.08);
  z-index: 1000;
  padding: 16px 5%;
  display: flex; justify-content: space-between; align-items: center;
}
.logo { font-size: 20px; font-weight: 700; color: #0f5132; letter-spacing: 1px; }
.logo span { color: #2ea043; }
.nav-links { display: flex; gap: 28px; }
.nav-links a { font-size: 14px; font-weight: 500; transition: color 0.3s; }
.nav-links a:hover { color: #2ea043; }
.btn-quote {
  background: linear-gradient(135deg, #2ea043, #0f5132);
  color: #fff !important; padding: 9px 22px; border-radius: 30px;
  font-size: 14px; font-weight: 600; transition: transform 0.3s;
}
.btn-quote:hover { transform: translateY(-2px); }

.hero {
  min-height: 88vh;
  color: #fff;
  display: flex; align-items: center;
  padding: 100px 5% 60px;
}
.hero-content { max-width: 780px; }
.hero .tag {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  padding: 6px 18px; border-radius: 20px;
  font-size: 13px; margin-bottom: 20px;
  border: 1px solid rgba(255,255,255,0.3);
}
.hero h1 {
  font-size: 48px; font-weight: 800;
  line-height: 1.2; margin-bottom: 22px;
  letter-spacing: 1px;
}
.hero h1 em { color: #f9d949; font-style: normal; }
.hero .lead {
  font-size: 17px; opacity: 0.95;
  margin-bottom: 32px; max-width: 620px;
}
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-primary, .btn-outline {
  padding: 13px 30px; border-radius: 30px;
  font-size: 15px; font-weight: 600;
  transition: all 0.3s;
  display: inline-flex; align-items: center; gap: 8px;
}
.btn-primary { background: #f9d949; color: #0f5132; }
.btn-primary:hover { background: #fff; transform: translateY(-2px); }
.btn-outline { border: 2px solid #fff; color: #fff; }
.btn-outline:hover { background: #fff; color: #0f5132; }

.hero-highlight {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 24px; margin-top: 48px;
  padding-top: 32px; border-top: 1px solid rgba(255,255,255,0.2);
}
.hh-item .n { font-size: 30px; font-weight: 800; color: #f9d949; }
.hh-item .l { font-size: 13px; opacity: 0.9; margin-top: 4px; }

section { padding: 80px 5%; }
.section-title { text-align: center; margin-bottom: 50px; }
.section-title .sub {
  color: #2ea043; font-size: 13px;
  letter-spacing: 3px; font-weight: 600;
  text-transform: uppercase;
}
.section-title h2 {
  font-size: 36px; font-weight: 800;
  margin-top: 6px; color: #1a2e1f;
}
.section-title .desc {
  max-width: 640px; margin: 14px auto 0;
  color: #5a6b5e; font-size: 15px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px; max-width: 1280px; margin: 0 auto;
}
.feature-card {
  background: #fff; border-radius: 14px;
  padding: 34px 28px;
  box-shadow: 0 8px 30px rgba(15,81,50,0.08);
  transition: all 0.4s;
  border-top: 3px solid transparent;
}
.feature-card:hover {
  transform: translateY(-6px);
  border-top-color: #2ea043;
  box-shadow: 0 16px 40px rgba(15,81,50,0.15);
}
.feature-card .icon {
  width: 58px; height: 58px;
  background: linear-gradient(135deg, #e6f4ea, #b7e1c1);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 28px; margin-bottom: 18px;
}
.feature-card h3 { font-size: 20px; margin-bottom: 10px; color: #0f5132; }
.feature-card p { color: #5a6b5e; font-size: 14px; }

.specs { background: #fff; }
.specs-table {
  max-width: 1000px; margin: 0 auto;
  border-radius: 14px; overflow: hidden;
  box-shadow: 0 8px 30px rgba(15,81,50,0.08);
}
.specs-table table { width: 100%; border-collapse: collapse; }
.specs-table th {
  background: linear-gradient(135deg, #0f5132, #2ea043);
  color: #fff; padding: 16px 20px;
  text-align: left; font-size: 15px;
}
.specs-table td {
  padding: 14px 20px; font-size: 14px;
  border-bottom: 1px solid #eef4ea;
  color: #3a4a3d;
}
.specs-table tr:nth-child(even) td { background: #f5f9f4; }
.specs-table tr:last-child td { border-bottom: none; }
.specs-table .tag-h { color: #2ea043; font-weight: 700; }

.usecase { background: linear-gradient(180deg, #f5f9f4, #e6f4ea); }
.usecase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px; max-width: 1280px; margin: 0 auto;
}
.uc-card {
  background: #fff; border-radius: 12px;
  padding: 26px 22px;
  border-left: 4px solid #2ea043;
  box-shadow: 0 4px 18px rgba(15,81,50,0.06);
}
.uc-card .emoji { font-size: 28px; margin-bottom: 10px; }
.uc-card h4 { font-size: 17px; color: #0f5132; margin-bottom: 8px; }
.uc-card p { font-size: 13px; color: #5a6b5e; }

.cta {
  background: linear-gradient(135deg, #0f5132, #2ea043);
  color: #fff; text-align: center;
}
.cta h2 { font-size: 34px; margin-bottom: 14px; font-weight: 800; }
.cta p { font-size: 16px; opacity: 0.95; margin-bottom: 28px; }
.cta .contact-info {
  display: flex; gap: 36px; justify-content: center;
  margin-top: 36px; flex-wrap: wrap;
}
.contact-item { display: flex; align-items: center; gap: 10px; font-size: 15px; }
.contact-item .ico { font-size: 20px; }

.back-home {
  position: fixed; left: 20px; bottom: 20px;
  background: rgba(15,81,50,0.9); color: #fff !important;
  padding: 10px 18px; border-radius: 30px;
  font-size: 13px; z-index: 999;
  box-shadow: 0 6px 20px rgba(15,81,50,0.3);
  transition: all 0.3s;
}
.back-home:hover { background: #2ea043; transform: translateY(-2px); }

footer {
  background: #0a2515; color: #a8c0b0;
  padding: 36px 5% 22px; text-align: center;
}
footer .logo { justify-content: center; margin-bottom: 10px; color: #fff; }
footer p { font-size: 13px; margin-top: 8px; }

@media (max-width: 768px) {
  .hero h1 { font-size: 32px; }
  .hero .lead { font-size: 15px; }
  .hero-highlight { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .hh-item .n { font-size: 24px; }
  .section-title h2 { font-size: 26px; }
  .nav-links { display: none; }
  .cta h2 { font-size: 24px; }
}