/* ==========================================================
   青岛聚点网络科技有限公司 官网样式
   设计：现代企业风 / 蓝白主题 / 响应式
   ========================================================== */
:root {
  --primary: #1e5eff;
  --primary-dark: #1448c8;
  --primary-light: #eaf0ff;
  --ink: #16233a;
  --muted: #5b6b84;
  --border: #e3e9f2;
  --bg: #ffffff;
  --bg-soft: #f5f8fc;
  --footer-bg: #0e1730;
  --radius: 12px;
  --shadow: 0 4px 20px rgba(22, 35, 58, 0.07);
  --shadow-lg: 0 12px 40px rgba(22, 35, 58, 0.12);
  --container: 1180px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--primary-dark); }
ul { list-style: none; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
}
.header-inner {
  max-width: var(--container); margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.logo { display: flex; align-items: center; gap: 10px; }
.logo img { height: 40px; width: auto; }
.logo-text { font-size: 1.15rem; font-weight: 700; color: var(--ink); letter-spacing: .5px; }
.logo-text small { display: block; font-size: .68rem; font-weight: 400; color: var(--muted); letter-spacing: 1px; }
.main-nav ul { display: flex; gap: 34px; }
.main-nav a {
  color: var(--ink); font-size: .98rem; font-weight: 500;
  padding: 6px 2px; position: relative;
}
.main-nav a::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 0; height: 2px;
  background: var(--primary); transition: width .25s;
}
.main-nav a:hover::after, .main-nav a.active::after { width: 100%; }
.main-nav a.active { color: var(--primary); }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 6px; }
.nav-toggle span {
  display: block; width: 24px; height: 2px; background: var(--ink);
  margin: 5px 0; transition: all .25s; border-radius: 2px;
}

/* ---------- Hero ---------- */
.hero {
  position: relative; color: #fff;
  background: linear-gradient(135deg, #0e1730 0%, #1e3a8a 55%, #1e5eff 100%);
  padding: 110px 0 130px;
  overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; right: -120px; top: -120px;
  width: 420px; height: 420px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,.14), transparent 65%);
}
.hero::after {
  content: ""; position: absolute; left: -80px; bottom: -160px;
  width: 360px; height: 360px; border-radius: 50%;
  background: radial-gradient(circle, rgba(30,94,255,.5), transparent 65%);
}
.hero-inner { position: relative; z-index: 2; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.hero .eyebrow {
  display: inline-block; font-size: .82rem; letter-spacing: 2px;
  color: #a9c0ff; margin-bottom: 18px; font-weight: 500;
}
.hero h1 {
  font-size: 2.7rem; line-height: 1.25; font-weight: 700;
  max-width: 720px; letter-spacing: 1px;
}
.hero .lead {
  margin-top: 20px; font-size: 1.12rem; color: #d7e2ff;
  max-width: 640px; line-height: 1.9;
}
.hero-cta { margin-top: 36px; display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 13px 34px; border-radius: 40px;
  font-weight: 600; font-size: 1rem; transition: all .25s; cursor: pointer;
  border: 1px solid transparent;
}
.btn-primary { background: #fff; color: var(--primary-dark); }
.btn-primary:hover { background: #e8efff; color: var(--primary-dark); transform: translateY(-2px); }
.btn-outline { border-color: rgba(255,255,255,.55); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,.12); color: #fff; transform: translateY(-2px); }
.btn-solid { background: var(--primary); color: #fff; }
.btn-solid:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); }

/* ---------- 区块通用 ---------- */
.section { padding: 88px 0; }
.section-alt { background: var(--bg-soft); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-head .label {
  color: var(--primary); font-size: .82rem; font-weight: 600;
  letter-spacing: 3px; text-transform: uppercase;
}
.section-head h2 { font-size: 2rem; margin-top: 10px; letter-spacing: 1px; }
.section-head p { color: var(--muted); margin-top: 14px; font-size: 1.02rem; }

/* ---------- 服务卡片 ---------- */
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.service-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px 24px; transition: all .25s; box-shadow: var(--shadow);
}
.service-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: #c9d8ff; }
.service-card .ico {
  width: 52px; height: 52px; border-radius: 12px;
  background: var(--primary-light); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; margin-bottom: 18px; font-style: normal; font-weight: 700;
}
.service-card h3 { font-size: 1.08rem; margin-bottom: 10px; }
.service-card p { color: var(--muted); font-size: .92rem; }

/* ---------- 产品卡片 ---------- */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.product-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; transition: all .25s; box-shadow: var(--shadow);
}
.product-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.product-card .thumb {
  height: 200px; background: var(--bg-soft); overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.product-card .thumb img { width: 100%; height: 100%; object-fit: contain; padding: 18px; }
.product-card .body { padding: 20px 22px 24px; }
.product-card .cat {
  display: inline-block; font-size: .74rem; color: var(--primary);
  background: var(--primary-light); padding: 2px 10px; border-radius: 20px; margin-bottom: 10px;
}
.product-card h3 { font-size: 1.05rem; margin-bottom: 8px; }
.product-card p { color: var(--muted); font-size: .9rem; min-height: 2.8em; }

/* ---------- 关于预览 ---------- */
.about-preview { display: grid; grid-template-columns: 1fr 1.2fr; gap: 56px; align-items: center; }
.about-preview .img-box { position: relative; }
.about-preview .img-box img { border-radius: var(--radius); box-shadow: var(--shadow-lg); }
.about-preview h3 { font-size: 1.5rem; margin-bottom: 16px; }
.about-preview p { color: var(--muted); margin-bottom: 14px; }
.about-stats { display: flex; gap: 44px; margin-top: 28px; }
.about-stats .num { font-size: 2rem; font-weight: 700; color: var(--primary); line-height: 1.2; }
.about-stats .cap { color: var(--muted); font-size: .9rem; }

/* ---------- 发展历程 ---------- */
.timeline { position: relative; max-width: 780px; margin: 0 auto; padding-left: 34px; }
.timeline::before {
  content: ""; position: absolute; left: 8px; top: 4px; bottom: 4px;
  width: 2px; background: linear-gradient(var(--primary), #c9d8ff);
}
.timeline-item { position: relative; margin-bottom: 34px; }
.timeline-item::before {
  content: ""; position: absolute; left: -32px; top: 8px;
  width: 14px; height: 14px; border-radius: 50%;
  background: #fff; border: 3px solid var(--primary);
}
.timeline-item .year { font-weight: 700; color: var(--primary); font-size: 1.1rem; }
.timeline-item p { color: var(--muted); margin-top: 6px; }

/* ---------- 企业文化 ---------- */
.culture-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; }
.culture-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px 20px; text-align: center; transition: all .25s;
}
.culture-card:hover { border-color: var(--primary); transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.culture-card .cn { font-size: 1.1rem; font-weight: 700; }
.culture-card .en { font-size: .72rem; color: var(--primary); letter-spacing: 1px; margin-top: 4px; min-height: 2.4em; }
.culture-card p { color: var(--muted); font-size: .88rem; margin-top: 10px; }

/* ---------- 服务策略 ---------- */
.strategy-list { max-width: 860px; margin: 0 auto; }
.strategy-item {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px 32px; margin-bottom: 20px; display: flex; gap: 22px; align-items: flex-start;
  box-shadow: var(--shadow);
}
.strategy-item .idx {
  flex-shrink: 0; width: 46px; height: 46px; border-radius: 50%;
  background: var(--primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 1.15rem;
}
.strategy-item h3 { font-size: 1.12rem; margin-bottom: 8px; }
.strategy-item p { color: var(--muted); }

/* ---------- CTA ---------- */
.cta-band {
  background: linear-gradient(120deg, var(--primary-dark), var(--primary));
  color: #fff; padding: 64px 0; text-align: center;
}
.cta-band h2 { font-size: 1.7rem; margin-bottom: 12px; }
.cta-band p { color: #d7e2ff; margin-bottom: 28px; }

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; }
.contact-item {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px 28px; box-shadow: var(--shadow);
}
.contact-item h3 { font-size: 1.05rem; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.contact-item p { color: var(--muted); }
.contact-item a { font-weight: 600; }
.contact-qr { text-align: center; }
.contact-qr img { max-width: 200px; border-radius: 10px; margin: 0 auto; }
.map-wrap { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); margin-top: 44px; }
.map-wrap iframe { width: 100%; height: 380px; border: 0; display: block; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--footer-bg); color: #9fb0cc; padding: 60px 0 0; font-size: .92rem; }
.footer-grid {
  max-width: var(--container); margin: 0 auto; padding: 0 24px 40px;
  display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 40px;
}
.footer-grid h4 { color: #fff; font-size: 1rem; margin-bottom: 18px; }
.footer-grid p { line-height: 2; }
.footer-grid a { color: #9fb0cc; }
.footer-grid a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  text-align: center; padding: 20px 0; font-size: .84rem; color: #6c7c99;
}
.footer-bottom a { color: #8fa4c9; }

/* ---------- 面包屑 ---------- */
.crumbs { background: var(--bg-soft); border-bottom: 1px solid var(--border); padding: 16px 0; font-size: .9rem; color: var(--muted); }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--primary); }
.crumbs span.sep { margin: 0 8px; color: #b9c4d6; }

/* ---------- 页头横幅 ---------- */
.page-banner {
  background: linear-gradient(135deg, #0e1730, #1e3a8a);
  color: #fff; padding: 64px 0; text-align: center;
}
.page-banner h1 { font-size: 2rem; letter-spacing: 2px; }
.page-banner p { color: #c6d4f5; margin-top: 10px; }

/* ---------- 文章正文 ---------- */
.prose { max-width: 860px; margin: 0 auto; }
.prose p { margin-bottom: 16px; color: #2c3c58; }

/* ---------- 响应式 ---------- */
@media (max-width: 992px) {
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .culture-grid { grid-template-columns: repeat(3, 1fr); }
  .about-preview { grid-template-columns: 1fr; gap: 32px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 700px) {
  .section { padding: 64px 0; }
  .hero { padding: 80px 0 96px; }
  .hero h1 { font-size: 1.9rem; }
  .nav-toggle { display: block; }
  .main-nav {
    position: fixed; top: 72px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--border);
    padding: 12px 24px 20px; transform: translateY(-130%); transition: transform .3s;
    box-shadow: var(--shadow-lg);
  }
  .main-nav.open { transform: translateY(0); }
  .main-nav ul { flex-direction: column; gap: 4px; }
  .main-nav a { display: block; padding: 12px 4px; }
  .service-grid, .product-grid { grid-template-columns: 1fr; }
  .culture-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .about-stats { gap: 28px; flex-wrap: wrap; }
}