:root {
  --primary: #0a6e5c;
  --primary-dark: #085548;
  --accent: #f5a623;
  --bg: #ffffff;
  --bg-alt: #f4f8f7;
  --text: #1f2d2b;
  --text-soft: #5a6b68;
  --max: 1140px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* 导航 */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid #e7eeec;
  transition: box-shadow .3s;
}
.navbar.scrolled { box-shadow: 0 4px 20px rgba(0,0,0,.06); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-logo {
  background: var(--primary); color: #fff; font-weight: 700;
  padding: 6px 10px; border-radius: 8px; font-size: 16px;
}
.brand-name { color: var(--text); font-weight: 600; font-size: 16px; }
.nav-links { display: flex; gap: 28px; }
.nav-links a { color: var(--text-soft); text-decoration: none; font-size: 15px; transition: color .2s; }
.nav-links a:hover { color: var(--primary); }
.nav-toggle { display: none; background: none; border: none; font-size: 24px; cursor: pointer; color: var(--primary); }

/* Hero */
.hero {
  margin-top: 64px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff; text-align: center; padding: 110px 24px 120px;
}
.hero-tag {
  display: inline-block; background: rgba(255,255,255,.15);
  padding: 6px 16px; border-radius: 999px; font-size: 14px; margin-bottom: 22px;
}
.hero h1 { font-size: 42px; font-weight: 700; letter-spacing: 1px; }
.hero-sub { font-size: 18px; opacity: .9; margin: 18px 0 36px; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn {
  text-decoration: none; padding: 13px 32px; border-radius: 999px;
  font-size: 15px; font-weight: 600; transition: transform .2s, opacity .2s;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--accent); color: #2b1c00; }
.btn-ghost { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.6); }

/* 通用区块 */
.section { padding: 84px 0; }
.section-alt { background: var(--bg-alt); }
.section-title { text-align: center; font-size: 30px; font-weight: 700; color: var(--text); }
.section-lead { text-align: center; color: var(--text-soft); letter-spacing: 3px; font-size: 13px; margin: 8px 0 48px; text-transform: uppercase; }

/* 公司简介 */
.about-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: center; }
.about-text p { margin-bottom: 18px; color: var(--text-soft); font-size: 16px; }
.about-text strong { color: var(--primary); }
.about-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.stat {
  background: var(--bg-alt); border: 1px solid #e3ece9; border-radius: 14px;
  padding: 24px; text-align: center;
}
.section-alt .stat { background: #fff; }
.stat-num { display: block; font-size: 26px; font-weight: 700; color: var(--primary); }
.stat-label { font-size: 14px; color: var(--text-soft); }

/* 金固达 */
.brand-card {
  max-width: 760px; margin: 0 auto; background: #fff; border-radius: 18px;
  padding: 44px; box-shadow: 0 12px 40px rgba(10,110,92,.08); text-align: center;
}
.brand-badge {
  display: inline-block; background: var(--accent); color: #2b1c00;
  font-size: 22px; font-weight: 700; padding: 10px 28px; border-radius: 12px; margin-bottom: 22px;
}
.brand-card p { color: var(--text-soft); font-size: 16px; margin-bottom: 14px; }
.brand-card strong { color: var(--primary); }

/* 业务卡片 */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.card {
  background: #fff; border: 1px solid #e3ece9; border-radius: 16px; padding: 30px 24px;
  transition: transform .25s, box-shadow .25s;
}
.section-alt .card { background: #fff; }
.card:hover { transform: translateY(-6px); box-shadow: 0 16px 36px rgba(10,110,92,.12); }
.card-icon { font-size: 34px; margin-bottom: 14px; }
.card h3 { font-size: 19px; color: var(--text); margin-bottom: 10px; }
.card p { color: var(--text-soft); font-size: 15px; }

/* 工商信息表 */
.info-table { max-width: 860px; margin: 0 auto; border: 1px solid #e3ece9; border-radius: 14px; overflow: hidden; }
.info-row {
  display: grid; grid-template-columns: 200px 1fr; gap: 16px;
  padding: 16px 22px; border-bottom: 1px solid #eef3f2; font-size: 15px;
}
.info-row:last-child { border-bottom: none; }
.info-row:nth-child(odd) { background: #fff; }
.section-alt .info-row:nth-child(odd) { background: #fff; }
.info-row span { color: var(--text-soft); }
.info-row b { color: var(--text); font-weight: 600; }

/* 联系我们 */
.contact-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; max-width: 860px; margin: 0 auto; }
.contact-item {
  background: var(--bg-alt); border: 1px solid #e3ece9; border-radius: 14px; padding: 24px;
}
.section-alt .contact-item { background: #fff; }
.contact-item span { display: block; color: var(--text-soft); font-size: 14px; margin-bottom: 8px; }
.contact-item b { font-size: 16px; color: var(--text); }
.contact-note { text-align: center; color: var(--text-soft); margin-top: 30px; }

/* 页脚 */
.footer { background: var(--primary-dark); color: rgba(255,255,255,.85); text-align: center; padding: 34px 24px; }
.footer p { font-size: 14px; }
.footer-sub { font-size: 12px; opacity: .6; margin-top: 6px; }
.beian-link { color: rgba(255,255,255,.85); text-decoration: none; border-bottom: 1px solid rgba(255,255,255,.4); }
.beian-link:hover { color: #fff; border-bottom-color: #fff; }

/* 响应式 */
@media (max-width: 900px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .nav-links {
    position: absolute; top: 64px; left: 0; right: 0; background: #fff; flex-direction: column;
    gap: 0; padding: 8px 0; border-bottom: 1px solid #e7eeec; display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 24px; }
  .nav-toggle { display: block; }
  .hero h1 { font-size: 30px; }
  .cards, .about-stats, .contact-grid { grid-template-columns: 1fr; }
  .info-row { grid-template-columns: 1fr; gap: 4px; }
  .section { padding: 60px 0; }
}