/* 山西三叶虫信息技术股份有限公司 - 官网样式 */
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --secondary: #059669;
  --accent: #f59e0b;
  --dark: #1e293b;
  --gray: #64748b;
  --light: #f8fafc;
  --border: #e2e8f0;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif; color: var(--dark); line-height: 1.6; }

/* Header */
.header { background: #fff; border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; }
.header-inner { max-width: 1200px; margin: 0 auto; padding: 12px 20px; display: flex; align-items: center; justify-content: space-between; }
.logo { font-size: 22px; font-weight: 700; color: var(--primary); text-decoration: none; }
.logo span { color: var(--secondary); }
.nav { display: flex; gap: 24px; }
.nav a { text-decoration: none; color: var(--gray); font-size: 14px; font-weight: 500; transition: color .2s; }
.nav a:hover { color: var(--primary); }

/* Hero */
.hero { background: linear-gradient(135deg, #1e293b 0%, #334155 100%); color: #fff; padding: 80px 20px; text-align: center; }
.hero h1 { font-size: 40px; font-weight: 700; margin-bottom: 16px; }
.hero p { font-size: 18px; color: #94a3b8; max-width: 700px; margin: 0 auto 32px; }
.hero-btns { display: flex; gap: 16px; justify-content: center; }
.btn { display: inline-block; padding: 12px 32px; border-radius: 8px; font-size: 16px; font-weight: 600; text-decoration: none; transition: all .2s; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); }
.btn-outline { border: 2px solid rgba(255,255,255,.3); color: #fff; }
.btn-outline:hover { border-color: #fff; transform: translateY(-2px); }

/* Section */
.section { padding: 60px 20px; }
.section-inner { max-width: 1200px; margin: 0 auto; }
.section-title { text-align: center; font-size: 28px; font-weight: 700; margin-bottom: 40px; }
.section-title span { color: var(--primary); }

/* Services Grid */
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.service-card { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 32px 24px; text-align: center; transition: all .3s; }
.service-card:hover { box-shadow: 0 8px 32px rgba(0,0,0,.1); transform: translateY(-4px); }
.service-icon { width: 56px; height: 56px; margin: 0 auto 16px; background: var(--light); border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 28px; }
.service-card h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.service-card p { color: var(--gray); font-size: 14px; margin-bottom: 16px; }
.service-card .tag { display: inline-block; padding: 4px 12px; background: var(--light); border-radius: 20px; font-size: 12px; color: var(--primary); }

/* Province Grid */
.province-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
.province-item { display: block; padding: 16px; text-align: center; background: var(--light); border-radius: 8px; text-decoration: none; color: var(--dark); font-size: 14px; font-weight: 500; transition: all .2s; }
.province-item:hover { background: var(--primary); color: #fff; }

/* Advantages */
.adv-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
.adv-card { text-align: center; padding: 24px; }
.adv-card .num { font-size: 36px; font-weight: 700; color: var(--primary); }
.adv-card h4 { font-size: 16px; margin: 8px 0 4px; }
.adv-card p { font-size: 13px; color: var(--gray); }

/* Footer */
.footer { background: var(--dark); color: #94a3b8; padding: 40px 20px; text-align: center; font-size: 13px; }
.footer a { color: #94a3b8; text-decoration: none; }
.footer a:hover { color: #fff; }

/* Province Page */
.province-hero { background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%); color: #fff; padding: 60px 20px; text-align: center; }
.province-hero h1 { font-size: 32px; margin-bottom: 12px; }
.province-hero p { color: #bfdbfe; font-size: 16px; }
.breadcrumb { padding: 12px 0; font-size: 13px; color: var(--gray); }
.breadcrumb a { color: var(--primary); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }

/* Responsive */
@media (max-width: 768px) {
  .nav { display: none; }
  .hero h1 { font-size: 28px; }
  .services-grid { grid-template-columns: 1fr; }
  .province-grid { grid-template-columns: repeat(3, 1fr); }
}