:root {
      --primary: #1a56db;
      --primary-dark: #1e3a8a;
      --primary-light: #3b82f6;
      --primary-50: #eff6ff;
      --bg: #f5f7fa;
      --bg-card: #fff;
      --bg-dark: #1a2332;
      --text: #333;
      --text-light: #666;
      --text-muted: #999;
      --text-white: #fff;
      --border: #e5e8ed;
      --radius: 6px;
      --max-w: 1100px;
      --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    }
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { overflow-x: hidden; }
    body { font-family: var(--font); font-size: 14px; line-height: 1.6; color: var(--text); background: var(--bg); overflow-x: hidden; }
    a { color: var(--text); text-decoration: none; }
    a:hover { color: var(--primary); }
    img { max-width: 100%; display: block; }
    .wrap { max-width: var(--max-w); margin: 0 auto; padding: 0 16px; }

    /* Header */
    .header { background: var(--bg-card); border-bottom: 2px solid var(--primary); }
    .header-top { display: flex; align-items: center; justify-content: space-between; height: 60px; }
    .logo { font-size: 20px; font-weight: 700; color: var(--primary); white-space: nowrap; letter-spacing: 1px; }
    .header-phone { font-size: 18px; font-weight: 700; color: var(--primary); white-space: nowrap; }
    .header-phone span { display: block; font-size: 11px; font-weight: 400; color: var(--text-muted); }
    .nav-bar { background: var(--primary); }
    .nav { display: flex; gap: 0; }
    .nav a { font-size: 15px; color: rgba(255,255,255,.85); font-weight: 500; padding: 12px 0; display: block; flex: 1; text-align: center; }
    .nav a:hover, .nav a.active { color: #fff; background: rgba(255,255,255,.12); }

    /* Banner Carousel */
    .banner { position: relative; height: 360px; overflow: hidden; }
    .banner-track { display: flex; width: 300%; height: 100%; transition: transform .6s ease; }
    .banner-slide { flex: 0 0 33.3333%; height: 100%; }
    .banner-slide img { width: 100%; height: 100%; object-fit: cover; }
    .banner-dots { position: absolute; bottom: 16px; left: 50%; transform: translateX(-50%); display: flex; gap: 8px; }
    .banner-dot { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,.4); cursor: pointer; border: none; padding: 0; }
    .banner-dot.active { background: #fff; }

    /* Section */
    .section { padding: 48px 0; }
    .section + .section { border-top: 1px solid var(--border); }
    .section-hd { margin-bottom: 28px; }
    .section-hd h2 { font-size: 22px; font-weight: 700; color: var(--text); padding-bottom: 12px; border-bottom: 2px solid var(--primary); display: inline-block; }
    .section-hd p { font-size: 13px; color: var(--text-muted); margin-top: 6px; }

    /* About - image left, text right */
    .about { display: flex; gap: 32px; align-items: flex-start; }
    .about-img { flex: 0 0 380px; min-width: 0; }
    .about-img img { width: 100%; border-radius: var(--radius); }
    .about-txt { flex: 1; min-width: 0; font-size: 14px; color: var(--text-light); line-height: 2; }
    .about-txt p { margin-bottom: 12px; }
    .about-info { display: flex; gap: 32px; margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--border); }
    .about-info-item { text-align: center; flex: 1; }
    .about-info-num { font-size: 26px; font-weight: 700; color: var(--primary); }
    .about-info-label { font-size: 13px; color: var(--text-muted); margin-top: 4px; }

    /* Products - 3x2 grid with images */
    .prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .prod-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: box-shadow .2s; }
    .prod-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,.08); border-color: var(--primary-light); }
    .prod-card img { width: 100%; height: 180px; object-fit: cover; }
    .prod-card-tt { padding: 14px 16px; font-size: 15px; font-weight: 600; color: var(--text); text-align: center; }

    /* News - text list */
    .news-list { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); }
    .news-li { display: flex; align-items: center; justify-content: space-between; padding: 14px 20px; border-bottom: 1px dashed var(--border); }
    .news-li:last-child { border-bottom: none; }
    .news-li a { font-size: 14px; color: var(--text-light); flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; padding-right: 16px; }
    .news-li a::before { content: "\2022"; color: var(--primary); margin-right: 8px; font-weight: 700; }
    .news-li a:hover { color: var(--primary); }
    .news-date { font-size: 13px; color: var(--text-muted); white-space: nowrap; flex-shrink: 0; }

    /* Video center - 3 thumbnails */
    .vid-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .vid-card { position: relative; border-radius: var(--radius); overflow: hidden; cursor: pointer; }
    .vid-card img { width: 100%; height: 200px; object-fit: cover; }
    .vid-play { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -60%); width: 52px; height: 52px; background: rgba(0,0,0,.5); border-radius: 50%; display: flex; align-items: center; justify-content: center; }
    .vid-play::after { content: ""; display: block; width: 0; height: 0; border-style: solid; border-width: 10px 0 10px 18px; border-color: transparent transparent transparent #fff; margin-left: 3px; }
    .vid-title { position: absolute; bottom: 0; left: 0; right: 0; padding: 10px 12px; background: linear-gradient(transparent, rgba(0,0,0,.7)); color: var(--text-white); font-size: 13px; }

    /* Footer */
    .footer { background: var(--bg-dark); color: rgba(255,255,255,.6); padding: 36px 0 20px; font-size: 13px; }
    .footer-top { display: flex; justify-content: space-between; gap: 40px; padding-bottom: 24px; border-bottom: 1px solid rgba(255,255,255,.1); flex-wrap: wrap; }
    .footer-company { font-size: 15px; font-weight: 600; color: var(--text-white); margin-bottom: 8px; }
    .footer-links { display: flex; gap: 24px; }
    .footer-links a { color: rgba(255,255,255,.5); font-size: 13px; }
    .footer-links a:hover { color: var(--text-white); }
    .footer-bottom { padding-top: 16px; text-align: center; font-size: 12px; color: rgba(255,255,255,.3); }

    /* Responsive */
    @media (max-width: 1024px) {
      .about-img { flex: 0 0 300px; }
    }
    @media (max-width: 768px) {
      .header-top { height: 50px; }
      .header-phone { display: none; }
      .logo { font-size: 14px; }
      .nav a { font-size: 13px; padding: 10px 0; }
      .banner { height: 220px; }
      .about { flex-direction: column; }
      .about-img { flex: none; width: 100%; }
      .prod-grid { grid-template-columns: 1fr 1fr; }
      .vid-grid { grid-template-columns: 1fr; }
      .about-info { flex-wrap: wrap; gap: 16px; }
      .about-info-item { flex: 1; min-width: 80px; }
      .footer-top { flex-direction: column; gap: 20px; }
    }
    @media (max-width: 480px) {
      .nav { display: none; }
      .banner { height: 160px; }
      .section { padding: 32px 0; }
      .prod-grid { grid-template-columns: 1fr 1fr; }
    }
    
    
    
    
    
    /* ===== 新闻详情页 ===== */
.news-detail-hd {
  text-align: center;
  margin-bottom: 40px;
  padding-bottom: 30px;
  border-bottom: 1px solid #eee;
}
.news-detail-title {
  font-size: 28px;
  font-weight: bold;
  color: #333;
  line-height: 1.4;
  margin-bottom: 16px;
}
.news-detail-meta {
  color: #999;
  font-size: 14px;
}
.news-detail-meta span + span {
  margin-left: 24px;
}
.news-detail-body {
  font-size: 16px;
  line-height: 1.8;
  color: #555;
  margin-bottom: 40px;
}
.news-detail-body p { margin-bottom: 16px; }
.news-detail-body img { max-width: 100%; height: auto; }
.news-detail-body a { color: #ed8301; }
.news-detail-back {
  text-align: center;
  margin-top: 20px;
}
.news-detail-back a {
  display: inline-block;
  color: #1a56db;
  font-size: 15px;
  text-decoration: none;
  padding: 8px 20px;
  border: 1px solid #1a56db;
  border-radius: 4px;
  transition: background 0.2s, color 0.2s;
}
.news-detail-back a:hover {
  background: #1a56db;
  color: #fff;
}
.news-detail-body {
  font-size: 16px;
  line-height: 1.9;
  color: #444;
  margin-bottom: 40px;
  /*max-width: 760px;*/
  margin-left: auto;
  margin-right: auto;
}
.news-detail-body h2 {
  font-size: 20px;
  font-weight: bold;
  color: #333;
  margin: 28px 0 14px;
  line-height: 1.4;
}
.news-detail-body h3 {
  font-size: 18px;
  font-weight: bold;
  color: #333;
  margin: 24px 0 12px;
}
.news-detail-body p {
  margin-bottom: 18px;
  text-indent: 2em;
}
.news-detail-body img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 20px auto;
  display: block;
  box-shadow: 0 4px 16px rgba(0,0,0,.10);
}
.news-detail-body a { color: #1a56db; }
.news-detail-body ul, .news-detail-body ol {
  margin: 16px 0 16px 2em;
}
.news-detail-body li {
  margin-bottom: 8px;
  line-height: 1.8;
}
.news-detail-body blockquote {
  margin: 20px 0;
  padding: 16px 20px;
  background: #f5f7fa;
  border-left: 4px solid #1a56db;
  color: #666;
  font-style: italic;
}

/* 上一篇 下一篇 */
.news-pager {
  display: flex;
  gap: 16px;
  margin-bottom: 40px;
}
.pager-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.pager-btn:hover {
  border-color: var(--primary-light);
  box-shadow: 0 2px 8px rgba(0,0,0,.06);
}
.pager-disabled { opacity: 0.4; cursor: default; }
.pager-label { font-size: 12px; color: var(--text-muted); }
.pager-title { font-size: 14px; color: var(--text); font-weight: 500; }
.pager-next { text-align: right; }
.pager-prev .pager-title, .pager-next .pager-title {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 相关文章 */
.news-related {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
}
.news-related-hd {
  margin-bottom: 14px;
}
.news-related-hd h2 {
  font-size: 16px;
  font-weight: bold;
  color: var(--text);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}
.news-related-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.news-related-item {
  display: flex;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px dashed var(--border);
  font-size: 14px;
  color: var(--text-light);
  text-decoration: none;
}
.news-related-item:last-child { border-bottom: none; }
.news-related-item:hover { color: var(--primary); }
.news-related-dot {
  color: var(--primary);
  font-weight: bold;
  margin-right: 10px;
}

/* 产品卡片 */
.prod-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.prod-card {
  background: #fff;
  border: 1px solid #eee;
  border-radius: 8px;
  overflow: hidden;
  text-align: center;
  transition: box-shadow 0.2s, transform 0.2s;
}
.prod-card:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,.08);
  transform: translateY(-4px);
}
.prod-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}
.prod-card-tt {
  font-size: 16px;
  font-weight: bold;
  color: #333;
  padding: 16px 16px 4px;
}
.prod-card-sub {
  font-size: 13px;
  color: #999;
  padding: 0 16px 12px;
  line-height: 1.5;
}
.prod-card-btn {
  display: inline-block;
  margin: 0 16px 16px;
  padding: 8px 24px;
  background: #1890ff;
  color: #fff;
  border-radius: 4px;
  font-size: 14px;
  text-decoration: none;
  transition: background 0.2s;
}
.prod-card-btn:hover {
  background: #096dd9;
  color: #fff;
}

/* ===== 产品详情页 ===== */
#product-detail .wrap {
  max-width: 1000px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 50px 0;
}
.pdetail-imgs {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 12px 40px rgba(0,0,0,.10);
}
.pdetail-imgs img {
  width: 100%;
  display: block;
  aspect-ratio: 4/3;
  object-fit: cover;
}
.pdetail-info {
  padding: 0;
}
.pdetail-info h1 {
  font-size: 26px;
  font-weight: bold;
  color: #1a1a1a;
  margin-bottom: 12px;
  line-height: 1.3;
}
.pdetail-info .pdetail-sub {
  font-size: 15px;
  color: #666;
  line-height: 1.9;
  margin-bottom: 32px;
  padding-bottom: 28px;
  border-bottom: 1px solid #eee;
}
.pdetail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}
.pdetail-tags span {
  background: #e6f4ff;
  color: #1890ff;
  font-size: 13px;
  padding: 5px 14px;
  border-radius: 50px;
}
.pdetail-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 32px;
  background: #1890ff;
  color: #fff;
  border-radius: 6px;
  font-size: 15px;
  text-decoration: none;
  transition: background 0.2s;
}
.pdetail-back:hover {
  background: #096dd9;
  color: #fff;
}
/* 相关产品 */
#related-products {
  border-top: 1px solid #eee;
  padding-top: 40px;
}

@media (max-width: 768px) {
  #product-detail .wrap {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 30px 0;
  }
}
/* 相关产品 */
.related-prod-center {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}
.rel-card {
  display: block;
  text-decoration: none;
  width: 200px;
  border: 1px solid #eee;
  border-radius: 10px;
  overflow: hidden;
  background: #fff;
  transition: transform 0.2s, box-shadow 0.2s;
}
.rel-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,.10);
}
.rel-card img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  display: block;
}
.rel-card-tt {
  text-align: center;
  font-size: 14px;
  color: #333;
  padding: 14px 10px;
  background: #fff;
}

/* 返回按钮放最下面 */
.pdetail-footer {
  text-align: center;
  padding: 50px 0 40px;
}
.pdetail-footer .pdetail-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 36px;
  background: #1890ff;
  color: #fff;
  border-radius: 50px;
  font-size: 15px;
  text-decoration: none;
  transition: background 0.2s, transform 0.2s;
}
.pdetail-footer .pdetail-back:hover {
  background: #096dd9;
  transform: translateY(-2px);
  color: #fff;
}
.rel-card {
  width: 320px;
}
.rel-card img {
  height: 200px;
}



/* 城市分站链接 */
.city-links {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  margin-top: 24px;
  box-shadow: var(--shadow-sm);
}
/*.city-links-row {*/
/*  display: flex;*/
/*  flex-wrap: wrap;*/
/*  gap: 10px;*/
/*  align-items: center;*/
/*}*/
.city-link {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 13px;
  color: var(--text-light);
  background: var(--bg);
  border: 1px solid var(--border);
  text-decoration: none;
  transition: var(--transition-fast);
  white-space: nowrap;
}
.city-link:hover {
  background: var(--primary-50);
  border-color: var(--primary-light);
  color: var(--primary);
  transform: translateY(-1px);
}
.city-link-main {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--text-white);
  font-weight: 600;
}
.city-link-main:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: var(--text-white);
}


.video-player {
  display: flex;
  justify-content: center;
  max-width: 800px;
  margin: 0 auto;
}

.video-player video {
  width: 100%;
}