/* 智能官网 · 制造业风格（由站点工厂自动生成） */
:root {
  --primary: #1A5C4A;
  --primary-dark: #0F4030;
  --primary-deep: #082818;
  --accent: #C9A960;
  --accent-soft: rgba(232,113,10,0.08);
  --bg-soft: #F4F6FA;
  --text: #1f2430;
  --text-sub: #5b6472;
  --line: #e6e9ef;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(20, 30, 50, 0.08);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif; color: var(--text); background: #fff; line-height: 1.75; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }

/* 顶部导航 */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,0.92); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { font-size: 19px; font-weight: 800; color: var(--primary-deep); letter-spacing: 0.5px; }
.brand em { font-style: normal; color: var(--accent); }
.nav-links { display: flex; gap: 30px; font-size: 15px; color: var(--text-sub); }
.nav-links a:hover { color: var(--primary); }
.nav-cta { background: var(--primary); color: #fff; padding: 9px 20px; border-radius: 999px; font-size: 14px; font-weight: 600; transition: all .2s; }
.nav-cta:hover { background: var(--primary-dark); transform: translateY(-1px); }
.nav-toggle { display: none; background: none; border: 0; font-size: 24px; color: var(--primary-deep); cursor: pointer; }

/* Hero */
.hero { background: linear-gradient(135deg, var(--primary-deep) 0%, var(--primary) 60%, var(--primary-dark) 100%); color: #fff; padding: 96px 0 88px; position: relative; overflow: hidden; }
.hero::after { content: ""; position: absolute; right: -120px; top: -120px; width: 420px; height: 420px; border-radius: 50%; background: radial-gradient(circle, rgba(255,255,255,0.10) 0%, transparent 70%); }
.hero-grid { position: relative; z-index: 2; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.14); border: 1px solid rgba(255,255,255,0.25); padding: 6px 16px; border-radius: 999px; font-size: 13px; letter-spacing: 1px; margin-bottom: 22px; }
.hero-badge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.hero-title { font-size: 42px; line-height: 1.3; font-weight: 800; max-width: 760px; letter-spacing: 0.5px; }
.hero-sub { font-size: 17px; line-height: 1.9; color: rgba(255,255,255,0.86); max-width: 640px; margin-top: 18px; }
.hero-btns { display: flex; gap: 14px; margin-top: 32px; flex-wrap: wrap; }
.btn-primary { background: var(--accent); color: #fff; padding: 13px 28px; border-radius: 999px; font-weight: 700; font-size: 15px; transition: all .2s; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.18); }
.btn-ghost { border: 1.5px solid rgba(255,255,255,0.6); color: #fff; padding: 12px 26px; border-radius: 999px; font-weight: 600; font-size: 15px; transition: all .2s; }
.btn-ghost:hover { background: rgba(255,255,255,0.12); }
.hero-stats { display: flex; gap: 44px; margin-top: 48px; flex-wrap: wrap; }
.hero-stat .num { font-size: 28px; font-weight: 800; color: #fff; }
.hero-stat .label { font-size: 13px; color: rgba(255,255,255,0.72); margin-top: 2px; }

/* 区块通用 */
.section { padding: 84px 0; }
.section-alt { background: var(--bg-soft); }
.sec-tag { display: inline-block; font-size: 12px; letter-spacing: 2px; color: var(--accent); font-weight: 700; margin-bottom: 12px; text-transform: uppercase; }
.sec-title { font-size: 32px; font-weight: 800; color: var(--primary-deep); line-height: 1.35; }
.sec-desc { font-size: 16px; color: var(--text-sub); margin-top: 12px; max-width: 640px; }

/* 服务卡片 */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 44px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 44px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); transition: all .25s; }
.card:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(20,30,50,0.12); }
.card .ic { width: 46px; height: 46px; border-radius: 12px; background: var(--accent-soft); display: flex; align-items: center; justify-content: center; font-size: 22px; margin-bottom: 16px; }
.card h3 { font-size: 17px; font-weight: 700; color: var(--primary-deep); margin-bottom: 8px; }
.card p { font-size: 14px; color: var(--text-sub); line-height: 1.75; }

/* 关于区 */
.about-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; margin-top: 40px; align-items: center; }
.about-text p { font-size: 15.5px; color: var(--text-sub); margin-bottom: 16px; }
.about-side { background: var(--primary); color: #fff; border-radius: var(--radius); padding: 34px; }
.about-side h4 { font-size: 18px; font-weight: 700; margin-bottom: 18px; }
.about-side li { font-size: 14.5px; line-height: 2; list-style: none; display: flex; gap: 10px; align-items: flex-start; }
.about-side li::before { content: "✓"; color: var(--accent); font-weight: 800; }

/* 知识卡片 */
.kb-item { border-left: 3px solid var(--accent); background: #fff; padding: 20px 24px; border-radius: 0 var(--radius) var(--radius) 0; box-shadow: var(--shadow); }
.kb-item h3 { font-size: 16px; font-weight: 700; color: var(--primary-deep); margin-bottom: 8px; }
.kb-item p { font-size: 14px; color: var(--text-sub); line-height: 1.75; }

/* CTA */
.cta { background: linear-gradient(120deg, var(--primary) 0%, var(--primary-deep) 100%); color: #fff; text-align: center; padding: 72px 0; }
.cta h2 { font-size: 30px; font-weight: 800; }
.cta p { color: rgba(255,255,255,0.82); margin-top: 12px; font-size: 15.5px; }
.cta .btn-primary { margin-top: 26px; display: inline-block; }

/* 联系区 */
.contact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; margin-top: 36px; }
.contact-item { background: var(--bg-soft); border-radius: var(--radius); padding: 22px; text-align: center; }
.contact-item .t { font-size: 13px; color: var(--text-sub); margin-bottom: 6px; }
.contact-item .v { font-size: 16px; font-weight: 700; color: var(--primary-deep); }

/* 页脚 */
.site-footer { background: var(--primary-deep); color: rgba(255,255,255,0.75); padding: 36px 0; text-align: center; font-size: 13.5px; }
.site-footer .brand { color: #fff; display: block; margin-bottom: 10px; }

@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: 32px; }
}
@media (max-width: 600px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .nav-links { display: none; position: absolute; top: 68px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 16px 24px; gap: 16px; border-bottom: 1px solid var(--line); }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .hero { padding: 64px 0; }
  .hero-stats { gap: 24px; }
}