/* OMerp 官网样式 - 纯静态，无外部依赖 */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --blue: #1b7fd4;
  --blue-dark: #0f5da8;
  --blue-light: #eaf4fc;
  --text: #2b3a4a;
  --text-light: #6b7a8a;
  --bg-alt: #f5f9fd;
}

html { scroll-behavior: smooth; }

body {
  font-family: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Segoe UI", sans-serif;
  color: var(--text);
  line-height: 1.7;
  background: #fff;
}

.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* 导航 */
.navbar {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid #e6eef6;
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; text-decoration: none; }
.brand-logo { width: 36px; height: 36px; border-radius: 8px; }
.brand-name { margin-left: 10px; font-size: 22px; font-weight: 700; color: var(--blue-dark); letter-spacing: .5px; }
.nav-links a {
  margin-left: 32px; color: var(--text); text-decoration: none; font-size: 15px;
}
.nav-links a:hover { color: var(--blue); }

/* 首屏 */
.hero {
  background: linear-gradient(160deg, #eaf4fc 0%, #ffffff 70%);
  padding: 88px 0 96px;
  text-align: center;
}
.hero-logo { width: 110px; height: 110px; border-radius: 24px; box-shadow: 0 8px 30px rgba(27,127,212,.25); }
.hero h1 { margin-top: 28px; font-size: 38px; color: var(--blue-dark); letter-spacing: 1px; }
.hero-sub { margin-top: 14px; font-size: 18px; color: var(--text-light); }
.hero-company { margin-top: 10px; font-size: 14px; color: #9aa8b6; }
.hero-actions { margin-top: 36px; }
.btn {
  display: inline-block; padding: 12px 36px; border-radius: 6px;
  font-size: 16px; text-decoration: none; margin: 0 8px;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-dark); }
.btn-outline { border: 1px solid var(--blue); color: var(--blue); }
.btn-outline:hover { background: var(--blue-light); }

/* 通用区块 */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }
.section-title { text-align: center; font-size: 30px; color: var(--blue-dark); }
.section-title::after {
  content: ""; display: block; width: 48px; height: 3px;
  background: var(--blue); margin: 14px auto 0; border-radius: 2px;
}
.section-desc { text-align: center; max-width: 720px; margin: 20px auto 0; color: var(--text-light); }

/* 卡片 */
.card-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px; margin-top: 48px;
}
.card-grid.two { grid-template-columns: repeat(2, 1fr); max-width: 860px; margin-left: auto; margin-right: auto; }
.card {
  background: #fff; border: 1px solid #e6eef6; border-radius: 10px;
  padding: 28px 24px;
  transition: box-shadow .2s, transform .2s;
}
.card:hover { box-shadow: 0 10px 28px rgba(27,127,212,.12); transform: translateY(-3px); }
.card h3 { font-size: 18px; color: var(--blue-dark); margin-bottom: 10px; }
.card p { font-size: 14.5px; color: var(--text-light); }

/* 关于我们 */
.about-box { max-width: 820px; margin: 40px auto 0; }
.about-box p { margin-bottom: 16px; color: var(--text); font-size: 15.5px; }
.about-facts {
  list-style: none; display: flex; justify-content: space-between;
  margin-top: 44px; padding: 28px 24px;
  background: var(--blue-light); border-radius: 10px;
}
.about-facts li { text-align: center; flex: 1; }
.fact-num { display: block; font-size: 28px; font-weight: 700; color: var(--blue-dark); }
.fact-label { display: block; margin-top: 6px; font-size: 14px; color: var(--text-light); }

/* 联系我们 */
.contact-box {
  max-width: 680px; margin: 40px auto 0;
  background: #fff; border: 1px solid #e6eef6; border-radius: 10px;
  padding: 12px 32px;
}
.contact-item {
  display: flex; padding: 18px 0;
  border-bottom: 1px solid #eef3f8;
}
.contact-item:last-child { border-bottom: none; }
.contact-label { width: 110px; flex-shrink: 0; color: var(--text-light); font-size: 15px; }
.contact-value { color: var(--text); font-size: 15.5px; }

/* 页脚 */
.footer {
  background: #123a5c; color: #b9cbdc;
  text-align: center; padding: 32px 0; font-size: 14px;
}
.footer .icp { margin-top: 6px; color: #8ba3b8; }

/* 移动端适配 */
@media (max-width: 860px) {
  .card-grid, .card-grid.two { grid-template-columns: 1fr; }
  .hero { padding: 60px 0; }
  .hero h1 { font-size: 26px; }
  .hero-sub { font-size: 15px; }
  .about-facts { flex-wrap: wrap; }
  .about-facts li { flex: 0 0 50%; margin: 10px 0; }
  .nav-links a { margin-left: 18px; font-size: 14px; }
}