/* ============================================================
   深圳市智汉科技有限公司 gaece.com 前台样式 v25
   VI：科技蓝 #1660c9 + 商务金 #DAA520（点缀）
   ============================================================ */
:root {
  --blue: #1660c9;
  --blue-deep: #0b3d8f;
  --blue-light: #e8f1fd;
  --gold: #DAA520;
  --gold-light: #f7ecc8;
  --text: #2b3442;
  --text-light: #7a8798;
  --line: #e4e9f0;
  --bg-gray: #f5f8fb;
  --radius: 10px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: "Microsoft YaHei", "PingFang SC", -apple-system, sans-serif; color: var(--text); font-size: 15px; background: #fff; }
a { text-decoration: none; color: inherit; transition: color .2s; }
a:hover { color: var(--blue); }
ul { list-style: none; }
img { max-width: 100%; }
.container { width: 1200px; max-width: 94%; margin: 0 auto; }

/* ---------- 主导航（融合 logo / 菜单 / 搜索）---------- */
.main-nav { background: #fff; box-shadow: 0 2px 10px rgba(11,61,143,.06); position: sticky; top: 0; z-index: 900; }
.main-nav-in { display: flex; align-items: center; height: 80px; gap: 18px; position: relative; }
.main-nav-in > .logo { flex: 0 0 auto; margin-right: 12px; }
.main-nav-in > .nav-list { flex: 1 1 auto; }
.main-nav-in > .nav-search { flex: 0 0 auto; }

.logo { display: flex; align-items: center; gap: 10px; }
.logo-mark {
  width: 44px; height: 44px; border-radius: 10px;
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-deep) 100%);
  color: #fff; font-weight: 700; font-size: 26px;
  display: flex; align-items: center; justify-content: center;
  letter-spacing: 0; position: relative; overflow: hidden;
  box-shadow: 0 4px 12px rgba(22,96,201,.25);
}
.logo-mark::after {
  content: ""; position: absolute; inset: -50% -50% auto auto;
  width: 28px; height: 28px;
  background: var(--gold); opacity: .85; border-radius: 50%;
  filter: blur(2px); transform: rotate(20deg);
}
.logo-dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--gold);
  display: inline-block; margin: 4px 0 0 -3px;
  box-shadow: 0 0 0 2px rgba(218,165,32,.25);
}
.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.logo-text b { font-size: 22px; color: var(--blue-deep); letter-spacing: 2px; font-weight: 700; }
.logo-text b::after {
  content: ""; display: block; width: 26px; height: 2px;
  background: var(--gold); margin-top: 2px; border-radius: 2px;
}
.logo-text i { font-style: normal; font-size: 11.5px; color: var(--text-light); letter-spacing: 1px; margin-top: 2px; }
.logo:hover { color: inherit; }

.nav-list { display: flex; justify-content: center; }
.nav-item { position: relative; }
.nav-item > a { display: flex; align-items: center; gap: 4px; padding: 0 22px; height: 80px; font-size: 16px; font-weight: 500; color: var(--text); }
.nav-item > a .arrow { font-size: 11px; color: var(--text-light); font-style: normal; transition: transform .2s; }
.nav-item:hover > a, .nav-item.on > a { color: var(--blue); }
.nav-item:hover > a { background: linear-gradient(180deg, transparent 70%, var(--blue-light)); }
.nav-item.on > a::after {
  content: ""; position: absolute; left: 50%; bottom: 0;
  width: 24px; height: 2px; background: var(--gold); border-radius: 2px;
  transform: translateX(-50%);
}
.nav-item:hover .arrow { transform: rotate(180deg); }

/* mega 下拉（横排子项） */
.mega-menu, .drop-menu { position: absolute; top: 80px; left: 50%; transform: translateX(-50%); background: #fff; box-shadow: 0 12px 32px rgba(11,61,143,.14); border-top: 3px solid var(--blue); border-radius: 0 0 8px 8px; opacity: 0; visibility: hidden; transition: all .22s; z-index: 950; }
.nav-item:hover .mega-menu, .nav-item:hover .drop-menu { opacity: 1; visibility: visible; }
/* mega：每个系列为列，列内产品横排多列 */
.mega-menu { display: flex; padding: 20px 24px 22px; gap: 28px; min-width: 720px; max-width: 1100px; }
.mega-col { min-width: 150px; flex: 1; }
.mega-col-title { display: block; font-size: 15px; font-weight: 600; color: var(--blue-deep); padding-bottom: 10px; margin-bottom: 12px; border-bottom: 1px solid var(--line); }
.mega-col ul { display: flex; flex-wrap: wrap; gap: 8px 6px; }
.mega-col ul li a { display: inline-block; font-size: 13px; color: var(--text); padding: 5px 11px; background: var(--bg-gray); border-radius: 14px; line-height: 1.4; white-space: nowrap; transition: all .18s; }
.mega-col ul li a:hover { color: #fff; background: var(--blue); padding-left: 11px; }
.mega-col ul li a em { font-style: normal; font-size: 11px; color: var(--text-light); margin-left: 4px; }
.mega-col ul li a:hover em { color: rgba(255,255,255,.8); }
.mega-empty { font-size: 12.5px; color: var(--text-light); padding: 6px 0; }
/* mega-solu：方案条目横排多列 */
.mega-solu { display: flex; flex-wrap: wrap; gap: 8px; padding: 16px; width: 560px; }
.mega-solu-item { display: inline-flex; align-items: center; gap: 8px; padding: 9px 16px; border-radius: 18px; white-space: nowrap; }
.mega-solu-item b { font-size: 13.5px; color: var(--text); font-weight: 500; }
.mega-solu-item span { font-size: 11px; color: var(--text-light); padding-left: 6px; border-left: 1px solid var(--line); }
.mega-solu-item:hover { background: var(--blue-light); }
.mega-solu-item:hover b { color: var(--blue-deep); }
/* drop-menu：普通下拉横排 */
.drop-menu { display: flex; flex-direction: row; padding: 10px 12px; min-width: 200px; }
.drop-menu a { display: inline-block; padding: 8px 18px; font-size: 13.5px; color: var(--text); white-space: nowrap; border-radius: 16px; margin: 0 2px; transition: all .18s; }
.drop-menu a:hover { background: var(--blue-light); color: var(--blue); }

/* v2.9 三级下拉：二级分组（竖排）+ 三级子链接 */
.drop-group { display: flex; flex-direction: column; align-items: flex-start; padding: 4px 6px; margin: 0 4px; min-width: 132px; }
.drop-group-title { font-weight: 600; font-size: 13.5px; color: var(--p) !important; padding: 6px 12px !important; margin: 0 !important; border-radius: 6px !important; }
.drop-group-title:hover { background: var(--blue-light) !important; }
a.drop-sub { font-size: 12.8px; color: var(--pdd) !important; padding: 5px 12px 5px 22px !important; margin: 0 !important; border-radius: 6px !important; }
a.drop-sub::before { content: "·"; margin-right: 6px; color: var(--blue); font-weight: 700; }
a.drop-sub:hover { background: var(--blue-light) !important; color: var(--blue) !important; }

/* 导航搜索框（仿锐捷风格 + 金色焦点） */
.nav-search { position: relative; display: flex; align-items: center; height: 38px; background: var(--bg-gray); border: 1px solid var(--line); border-radius: 22px; padding: 0 4px 0 16px; transition: border-color .2s, box-shadow .2s, background .2s; }
.nav-search:hover { background: #fff; border-color: var(--blue-light); }
.nav-search:focus-within { background: #fff; border-color: var(--gold); box-shadow: 0 0 0 3px var(--gold-light); }
.nav-search-input { flex: 1 1 auto; border: 0; background: transparent; outline: none; font-size: 13.5px; color: var(--text); min-width: 160px; }
.nav-search-input::placeholder { color: var(--text-light); }
.nav-search-btn { width: 32px; height: 30px; border: 0; background: var(--blue); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: background .2s; }
.nav-search-btn:hover { background: var(--blue-deep); }
.nav-search-btn svg { display: block; }

/* ---------- 轮播 ---------- */
.hero { position: relative; height: 560px; background: linear-gradient(120deg, #0b3d8f, #1660c9); overflow: hidden; }
.hero-slides { height: 100%; position: relative; }
.hero-slide { position: absolute; inset: 0; display: flex; align-items: flex-end; background-size: cover; background-position: center; opacity: 0; transition: opacity .8s; }
.hero-slide.active { opacity: 1; }
.hero-caption { color: #fff; padding-bottom: 100px; max-width: 800px; }
.hero-caption h2 { font-size: 44px; font-weight: 600; letter-spacing: 2px; margin-bottom: 14px; text-shadow: 0 2px 12px rgba(0,0,0,.3); }
.hero-caption p { font-size: 19px; opacity: .92; letter-spacing: 1px; }
.hero-dots { position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%); display: flex; gap: 10px; z-index: 10; }
.hero-dots span { width: 36px; height: 4px; background: rgba(255,255,255,.45); border-radius: 2px; cursor: pointer; transition: background .3s; }
.hero-dots span.on { background: #fff; }
.hero-arrow { position: absolute; top: 50%; transform: translateY(-50%); width: 46px; height: 46px; border: none; background: rgba(255,255,255,.25); color: #fff; font-size: 26px; cursor: pointer; border-radius: 50%; z-index: 10; transition: background .2s; }
.hero-arrow:hover { background: rgba(255,255,255,.45); }
.hero-prev { left: 30px; } .hero-next { right: 30px; }

/* ---------- 通用 section ---------- */
.section { padding: 64px 0; }
.section-gray { background: var(--bg-gray); }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 34px; }
.section-head h2 { font-size: 28px; color: var(--blue-deep); position: relative; padding-left: 14px; }
.section-head h2::before { content: ""; position: absolute; left: 0; top: 5px; bottom: 5px; width: 4px; background: linear-gradient(180deg, var(--blue), var(--gold)); border-radius: 2px; }
.section-head p { font-size: 13px; color: var(--text-light); letter-spacing: 3px; margin-top: 6px; }
.more-link { font-size: 14px; color: var(--text-light); }
.more-link:hover { color: var(--blue); }

/* ---------- 首页产品系列 ---------- */
.series-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.series-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 24px; display: flex; flex-direction: column; align-items: flex-start; transition: all .25s; }
.series-card:hover { border-color: var(--blue); box-shadow: 0 10px 28px rgba(22,96,201,.12); transform: translateY(-4px); }
.series-logo { height: 56px; display: flex; align-items: center; margin-bottom: 16px; }
.series-logo img { max-height: 56px; max-width: 180px; object-fit: contain; }
.series-logo-ph { font-size: 34px; color: var(--blue); }
.series-card h3 { font-size: 18px; color: var(--text); margin-bottom: 4px; }
.series-card em { font-style: normal; font-size: 12px; color: var(--text-light); letter-spacing: 1px; margin-bottom: 12px; }
.series-card p { font-size: 13px; color: var(--text-light); line-height: 1.7; flex: 1; }
.series-count { font-size: 12.5px; color: var(--blue); margin-top: 14px; }

/* ---------- 解决方案卡片 ---------- */
/* v3.3 解决方案：两行三列，每框 385×485px 大图展示；悬停图片上拉（不超出框），标题与描述波浪上拉出现 */
.solu-grid { display: grid; grid-template-columns: repeat(3, 385px); gap: 22px; justify-content: center; }
.solu-card {
  position: relative; display: block; width: 385px; height: 485px; overflow: hidden;
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--blue-deep);
  transition: box-shadow .3s, border-color .3s;
  /* v3.4 波浪式入场（配合 index.ejs 的 animation-delay 递增） */
  animation: soluWave .66s cubic-bezier(.22,.68,.36,1) both;
}
@keyframes soluWave {
  0%   { opacity: 0; transform: translateY(36px) scale(.965); }
  60%  { opacity: 1; }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}
@media (prefers-reduced-motion: reduce) { .solu-card { animation: none; } }
.solu-card:hover { border-color: var(--blue); box-shadow: 0 18px 40px rgba(11,61,143,.22); }
/* 图片比框高出 24%，悬停时向上平移，配合 overflow:hidden 全程不会露出框底 */
.solu-img {
  position: absolute; left: 0; right: 0; top: 0; height: 128%;
  background-size: cover; background-position: center; background-color: #cddff3;
  transition: transform .62s cubic-bezier(.22,.68,.36,1);
  display: flex; align-items: center; justify-content: center;
}
.solu-card:hover .solu-img { transform: translateY(-20%); }
.solu-img.no-img { background: linear-gradient(135deg, #dbe8f8 0%, #a9c8ea 50%, #6f9fd6 100%); }
.solu-ph { font-style: normal; font-size: 96px; font-weight: 700; color: rgba(255,255,255,.55); text-shadow: 0 8px 22px rgba(11,61,143,.25); }
.solu-mask {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(6,42,79,.90) 0%, rgba(6,42,79,.55) 34%, rgba(6,42,79,.05) 62%, rgba(6,42,79,0) 100%);
  transition: opacity .35s;
}
.solu-card:hover .solu-mask { opacity: .96; background: linear-gradient(to top, rgba(6,42,79,.94) 0%, rgba(6,42,79,.72) 40%, rgba(6,42,79,.22) 68%, rgba(6,42,79,.04) 100%); }
.solu-body { position: absolute; left: 0; right: 0; bottom: 0; padding: 26px 26px 24px; color: #fff; display: block; }
.solu-body em, .solu-body h3, .solu-body p, .solu-body .solu-more { display: block; }
.solu-body em {
  font-style: normal; font-size: 11.5px; letter-spacing: 1.2px; text-transform: uppercase;
  color: rgba(255,255,255,.70); transform: translateY(0); opacity: .9;
  transition: transform .5s cubic-bezier(.22,.68,.36,1) 0s, opacity .5s ease 0s;
}
.solu-body h3 { font-size: 21px; font-weight: 500; margin-top: 6px; line-height: 1.35; }
.solu-body p {
  font-size: 13.5px; color: rgba(255,255,255,.86); line-height: 1.75; margin-top: 12px;
  max-height: 0; opacity: 0; overflow: hidden;
  transform: translateY(26px);
  transition: max-height .5s ease, opacity .45s ease .10s, transform .55s cubic-bezier(.22,.68,.36,1) .10s, margin-top .5s ease;
}
.solu-more {
  font-weight: 400; font-size: 13px; color: var(--gold-light); margin-top: 0;
  max-height: 0; opacity: 0; overflow: hidden;
  transform: translateY(26px);
  transition: max-height .5s ease, opacity .45s ease .20s, transform .55s cubic-bezier(.22,.68,.36,1) .20s, margin-top .5s ease;
}
/* 悬停：标题英文轻微上移，描述与「了解方案」依次上拉淡入 —— 阶梯延迟形成波浪 */
.solu-card:hover .solu-body em { transform: translateY(-10px); opacity: 1; }
.solu-card:hover .solu-body h3 { transform: translateY(-8px); transition: transform .55s cubic-bezier(.22,.68,.36,1) .06s; }
.solu-card:hover .solu-body p { max-height: 120px; opacity: 1; transform: translateY(-4px); margin-top: 12px; }
.solu-card:hover .solu-more { max-height: 40px; opacity: 1; transform: translateY(0); margin-top: 14px; }
.solu-body h3 { transition: transform .55s cubic-bezier(.22,.68,.36,1); }
@media (prefers-reduced-motion: reduce) {
  .solu-img, .solu-body em, .solu-body h3, .solu-body p, .solu-more { transition: none; }
}

/* ---------- 首页新闻 ---------- */
.news-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.news-col-title { font-size: 17px; color: var(--blue-deep); padding-bottom: 12px; border-bottom: 2px solid var(--blue); margin-bottom: 8px; }
.home-news-item { display: flex; gap: 14px; padding: 14px 4px; border-bottom: 1px dashed var(--line); align-items: center; }
.home-news-item img { width: 110px; height: 68px; object-fit: cover; border-radius: 6px; flex: 0 0 110px; }
.home-news-item b { display: block; font-size: 15px; font-weight: 500; color: var(--text); line-height: 1.5; margin-bottom: 6px; }
.home-news-item:hover b { color: var(--blue); }
.home-news-item span { font-size: 12.5px; color: var(--text-light); }
.news-empty { padding: 30px 0; color: var(--text-light); font-size: 14px; }

/* ---------- 页面 banner / 面包屑 ---------- */
.page-banner { background: linear-gradient(120deg, #0b3d8f, #1660c9); color: #fff; padding: 58px 0; text-align: center; }
.page-banner h1 { font-size: 32px; letter-spacing: 3px; }
.page-banner p { font-size: 13px; letter-spacing: 5px; opacity: .75; margin-top: 10px; }
.page-crumb { font-size: 13px; color: var(--text-light); padding: 22px 0 6px; }
.page-crumb a { color: var(--text-light); }
.page-crumb a:hover { color: var(--blue); }

/* ---------- 产品页 ---------- */
.series-tabs { display: flex; flex-wrap: wrap; gap: 10px; padding: 16px 0 26px; }
.series-tabs a { padding: 8px 22px; border: 1px solid var(--line); border-radius: 20px; font-size: 14px; color: var(--text-light); }
.series-tabs a:hover { border-color: var(--blue); color: var(--blue); }
.series-tabs a.on { background: var(--blue); border-color: var(--blue); color: #fff; }
.series-desc { font-size: 14px; color: var(--text-light); margin-bottom: 24px; line-height: 1.8; }
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; padding-bottom: 56px; }
.product-grid-sm { padding-bottom: 0; }
.product-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: all .25s; }
.product-card:hover { border-color: var(--blue); box-shadow: 0 10px 28px rgba(22,96,201,.12); transform: translateY(-4px); }
.product-img { height: 210px; background: var(--bg-gray); display: flex; align-items: center; justify-content: center; overflow: hidden; }
.product-img img { width: 100%; height: 100%; object-fit: contain; padding: 14px; }
.product-img-ph { font-size: 44px; color: #c3d2e5; }
.product-body { padding: 18px 20px 22px; }
.product-body h3 { font-size: 17px; color: var(--text); }
.product-body em { font-style: normal; font-size: 12.5px; color: var(--blue); display: block; margin: 5px 0 10px; }
.product-body p { font-size: 13px; color: var(--text-light); line-height: 1.7; min-height: 44px; }
.product-more { display: inline-block; font-size: 13px; color: var(--blue); margin-top: 10px; }
.empty-tip { padding: 60px 0; text-align: center; color: var(--text-light); }

/* ---------- 产品详情 ---------- */
.pd-wrap { display: grid; grid-template-columns: 1fr 300px; gap: 40px; align-items: start; padding-bottom: 56px; }
.pd-head { display: flex; gap: 34px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 34px; }
.pd-photo { flex: 0 0 360px; height: 300px; background: var(--bg-gray); border-radius: 8px; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.pd-photo img { width: 100%; height: 100%; object-fit: contain; }
.pd-photo-ph { font-size: 60px; color: #c3d2e5; }
.pd-info h1 { font-size: 26px; color: var(--text); margin-bottom: 12px; }
.pd-model { display: block; font-style: normal; font-size: 15px; color: var(--blue); margin-bottom: 6px; }
.pd-series { display: inline-block; font-size: 12.5px; color: var(--text-light); background: var(--bg-gray); border-radius: 12px; padding: 3px 12px; margin-bottom: 14px; }
.pd-intro { font-size: 14.5px; color: var(--text-light); line-height: 1.9; }
.pd-btn { display: inline-block; margin-top: 22px; padding: 11px 34px; background: var(--blue); color: #fff; border-radius: 6px; font-size: 14.5px; }
.pd-btn:hover { background: var(--blue-deep); color: #fff; }
.pd-sec { margin-top: 36px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 34px; }
.pd-sec h2 { font-size: 20px; color: var(--blue-deep); padding-left: 12px; border-left: 4px solid var(--blue); margin-bottom: 20px; }
.pd-side-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; position: sticky; top: 80px; }
.pd-side-card h3 { font-size: 17px; color: var(--blue-deep); margin-bottom: 16px; }
.pd-side-item { display: flex; gap: 12px; align-items: center; padding: 12px; border: 1px solid var(--line); border-radius: 8px; margin-bottom: 10px; }
.pd-side-item:hover { border-color: var(--blue); }
.pd-side-item img { width: 64px; height: 48px; object-fit: contain; }
.pd-side-item b { display: block; font-size: 14px; font-weight: 500; color: var(--text); }
.pd-side-item span { font-size: 12px; color: var(--text-light); }
.dl-list li { margin-bottom: 10px; }
.dl-list a { display: inline-block; padding: 9px 18px; background: var(--blue-light); color: var(--blue-deep); border-radius: 6px; font-size: 13.5px; }
.dl-list a:hover { background: var(--blue); color: #fff; }

/* ---------- 方案详情 ---------- */
.solu-article { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 44px 50px; margin-bottom: 56px; }
.solu-cover { width: 100%; border-radius: 8px; margin-bottom: 26px; }
.solu-lead { font-size: 16px; color: var(--text); line-height: 1.9; padding: 18px 22px; background: var(--blue-light); border-radius: 8px; margin-bottom: 26px; }
.solu-page-grid { padding-bottom: 56px; }

/* ---------- 服务支持 ---------- */
.support-list { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; padding-bottom: 56px; }
.support-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; transition: all .25s; }
.support-card:hover { border-color: var(--blue); box-shadow: 0 10px 28px rgba(22,96,201,.1); }
.support-card-head { display: flex; gap: 16px; align-items: center; margin-bottom: 16px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.support-icon { flex: 0 0 48px; height: 48px; background: var(--blue-light); color: var(--blue); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 22px; }
.support-card-head h3 { font-size: 17px; color: var(--text); }
.support-card-head em { font-style: normal; font-size: 12.5px; color: var(--text-light); }
.support-content { font-size: 14px; color: var(--text-light); }

/* ---------- 新闻列表/详情 ---------- */
.news-list { padding-bottom: 56px; }
.news-row { display: flex; gap: 22px; padding: 22px 10px; border-bottom: 1px solid var(--line); align-items: center; }
.news-row:hover { background: var(--bg-gray); }
.news-date { flex: 0 0 74px; text-align: center; }
.news-date b { display: block; font-size: 26px; color: var(--blue); line-height: 1.1; }
.news-date span { font-size: 12px; color: var(--text-light); }
.news-thumb { flex: 0 0 150px; width: 150px; height: 96px; border-radius: 8px; overflow: hidden; background: var(--bg-gray); }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-brief h3 { font-size: 17px; color: var(--text); font-weight: 500; display: flex; align-items: center; gap: 8px; }
.news-row:hover .news-brief h3 { color: var(--blue); }
.hot-badge { font-style: normal; font-size: 11px; color: #fff; background: linear-gradient(90deg, var(--gold), #c8941a); border-radius: 4px; padding: 2px 7px; }
.news-brief p { font-size: 13.5px; color: var(--text-light); line-height: 1.7; margin: 8px 0 10px; }
.news-row-meta { display: flex; gap: 8px; flex-wrap: wrap; }
.news-cat-badge { font-size: 12px; color: var(--blue); background: var(--blue-light); border-radius: 12px; padding: 3px 12px; }
.news-tag { font-size: 12px; color: var(--text-light); }
.news-article { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 46px 52px; margin-bottom: 40px; }
.news-article h1 { font-size: 26px; color: var(--text); line-height: 1.5; margin-bottom: 16px; }
.news-meta { font-size: 13px; color: var(--text-light); padding-bottom: 20px; border-bottom: 1px solid var(--line); margin-bottom: 24px; display: flex; gap: 22px; align-items: center; }
.news-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.news-content { font-size: 15.5px; line-height: 2; color: var(--text); }
.news-content p { margin-bottom: 16px; }
.news-back { margin-top: 30px; }

/* ---------- 关于 ---------- */
.about-wrap { padding-bottom: 56px; }
.about-sec { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 34px 40px; margin-bottom: 26px; }
.about-sec h2 { font-size: 21px; color: var(--blue-deep); padding-left: 12px; border-left: 4px solid var(--blue); margin-bottom: 18px; }
.about-sec p { font-size: 15px; color: var(--text-light); line-height: 2; margin-bottom: 12px; }
.culture-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.culture-item { background: var(--bg-gray); border-radius: 8px; padding: 24px; text-align: center; }
.culture-item b { display: block; font-size: 17px; color: var(--blue); margin-bottom: 10px; }
.culture-item p { font-size: 13.5px; margin: 0; }
.about-contact li { display: flex; padding: 10px 0; font-size: 15px; border-bottom: 1px dashed var(--line); }
.about-contact b { flex: 0 0 70px; color: var(--blue-deep); }
.about-contact span { color: var(--text-light); }

/* ---------- 方案分类筛选条 ---------- */
.solucat-bar { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 24px; }
.solucat-bar a {
  padding: 8px 22px; border-radius: 20px; font-size: 14px; color: var(--text);
  background: #fff; border: 1px solid var(--line); transition: all .2s;
}
.solucat-bar a:hover { border-color: var(--blue); color: var(--blue); }
.solucat-bar a.on { background: var(--blue); border-color: var(--blue); color: #fff; }

/* ---------- 关于我们：统计数字 + 在线留言 ---------- */
.about-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin: 22px 0 6px; }
.about-stat { background: var(--bg-gray); border-radius: 8px; padding: 22px 10px; text-align: center; border-top: 3px solid var(--blue); }
.about-stat b { display: block; font-size: 28px; color: var(--blue-deep); font-weight: 700; }
.about-stat span { font-size: 13px; color: var(--text-light); }
.lead-form { position: relative; margin-top: 6px; }
.lead-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 20px; }
.lead-field label { display: block; font-size: 13.5px; color: var(--blue-deep); font-weight: 600; margin-bottom: 7px; }
.lead-field input, .lead-field select, .lead-field textarea {
  width: 100%; padding: 11px 14px; border: 1px solid #ccd9e6; border-radius: 8px;
  font-size: 14px; font-family: inherit; outline: none; transition: border .2s; background: #fff;
}
.lead-field input:focus, .lead-field select:focus, .lead-field textarea:focus { border-color: var(--blue); }
.lead-field-wide { grid-column: 1 / -1; }
.btn-lead-submit {
  margin-top: 18px; padding: 12px 42px; border: none; border-radius: 8px; cursor: pointer;
  background: var(--blue); color: #fff; font-size: 15px; letter-spacing: 4px; transition: background .2s;
}
.btn-lead-submit:hover { background: var(--blue-deep); }
.btn-lead-submit:disabled { opacity: .6; cursor: not-allowed; }
.lead-tip { margin-left: 14px; font-size: 13.5px; }

/* ---------- 富文本 ---------- */
.rich-content h2 { font-size: 20px; color: var(--blue-deep); margin: 22px 0 12px; }
.rich-content h3 { font-size: 17px; color: var(--text); margin: 18px 0 10px; }
.rich-content p { margin-bottom: 14px; line-height: 1.9; }
.rich-content img { max-width: 100%; border-radius: 8px; margin: 10px 0; }
.rich-content table.re-table { border-collapse: collapse; width: 100%; margin: 14px 0; }
.rich-content table.re-table td, .rich-content table.re-table th { border: 1px solid var(--line); padding: 9px 14px; font-size: 14px; }

/* ---------- 页脚 ---------- */
.footer { background: #0b3d8f; color: rgba(255,255,255,.82); margin-top: 20px; }
.footer-in { display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 40px; padding: 54px 0 40px; }
.footer h3 { font-size: 16px; color: #fff; margin-bottom: 18px; }
.footer-about p { font-size: 13.5px; line-height: 1.9; opacity: .8; }
.footer-col ul li { font-size: 13.5px; margin-bottom: 10px; }
.footer-col ul a { color: rgba(255,255,255,.78); }
.footer-col ul a:hover { color: #fff; }
/* v2.9 底部三级链接 */
.footer-sub-group { margin-bottom: 4px; }
.footer-sub-title { font-weight: 600; color: #fff !important; }
.footer-sub-list { padding-left: 12px; border-left: 1px dashed rgba(255,255,255,.28); margin: 6px 0 8px 2px; }
.footer-sub-list li { font-size: 12.6px; margin-bottom: 7px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.14); padding: 18px 0; font-size: 12.5px; }
.footer-bottom .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; opacity: .75; }
.footer-bottom a { color: rgba(255,255,255,.75); }
.footer-bottom a:hover { color: #fff; }
/* v2.8 动态底部分组：基于子项数自适应列宽 */
.footer-in { grid-template-columns: minmax(220px, 2fr) repeat(auto-fit, minmax(150px, 1fr)) minmax(180px, 1.4fr); }

/* ---------- 404 ---------- */
.notfound { text-align: center; padding: 110px 0 130px; }
.notfound h1 { font-size: 80px; color: var(--blue); }
.notfound p { color: var(--text-light); margin: 16px 0 28px; }

/* ---------- v2.8 多语言开关（搜索框左侧） ---------- */
.lang-switch {
  display: inline-flex; align-items: center; gap: 4px; height: 38px; padding: 0 14px;
  margin-right: 6px; border: 1px solid var(--line); border-radius: 22px; cursor: pointer;
  font-size: 13.5px; color: var(--text); user-select: none; background: var(--bg-gray);
  transition: border-color .2s, color .2s, box-shadow .2s, background .2s;
}
.lang-switch:hover { border-color: var(--blue-light); background: #fff; color: var(--blue); }
.lang-switch .lang-cur { font-weight: 600; }
.lang-switch .lang-sep { color: var(--text-light); }
.lang-switch .lang-alt { color: var(--text-light); }
.lang-switch:hover .lang-alt { color: var(--blue); }

/* ---------- v2.8 底部社交图标 + 悬停二维码 ---------- */
.footer-socials { display: flex; gap: 12px; margin-top: 18px; flex-wrap: wrap; }
.social-item { position: relative; display: inline-flex; width: 58px; height: 58px; border-radius: 8px; background: rgba(255,255,255,.08); align-items: center; justify-content: center; cursor: pointer; transition: background .2s; overflow: visible; }
.social-item:hover { background: rgba(255,255,255,.16); }
.social-item .social-logo { width: 32px; height: 32px; object-fit: contain; display: block; filter: brightness(1.05); }
.social-item .social-qr {
  position: absolute; left: 50%; bottom: calc(100% + 10px); transform: translateX(-50%);
  background: #fff; padding: 6px; border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0,0,0,.25); opacity: 0; pointer-events: none; visibility: hidden;
  transition: opacity .2s, visibility .2s, transform .2s; z-index: 60;
}
.social-item .social-qr::after {
  content: ""; position: absolute; left: 50%; bottom: -7px; transform: translateX(-50%) rotate(45deg);
  width: 14px; height: 14px; background: #fff; border-radius: 2px;
}
.social-item .social-qr img { display: block; width: 100px; height: 100px; object-fit: contain; }
.social-item:hover .social-qr {
  opacity: 1; visibility: visible; transform: translateX(-50%) translateY(-4px);
}
.footer-about p + .footer-socials { margin-top: 16px; }

/* ---------- 搜索页 ---------- */
.search-page { padding: 50px 0 70px; }
.search-form-bar { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 18px 22px; display: flex; gap: 12px; align-items: center; box-shadow: 0 4px 18px rgba(11,61,143,.06); margin-bottom: 30px; }
.search-form-bar input { flex: 1; border: 0; outline: none; font-size: 16px; background: transparent; padding: 8px 4px; }
.search-form-bar button { padding: 10px 26px; background: var(--blue); color: #fff; border: 0; border-radius: 22px; font-size: 14.5px; cursor: pointer; transition: background .2s; }
.search-form-bar button:hover { background: var(--blue-deep); }
.search-hint { font-size: 14px; color: var(--text-light); padding: 0 4px 22px; }
.search-hint b { color: var(--gold); font-weight: 600; padding: 0 4px; }
.search-group { margin-bottom: 30px; }
.search-group-title { font-size: 15px; color: var(--blue-deep); padding: 6px 0 12px; border-bottom: 2px solid var(--blue); margin-bottom: 14px; display: flex; align-items: center; gap: 10px; }
.search-group-title i { font-style: normal; background: var(--blue-light); color: var(--blue); font-size: 12px; padding: 2px 10px; border-radius: 10px; }
.search-group-title b { font-weight: 500; }
.search-group-title em { font-style: normal; margin-left: auto; font-size: 12.5px; color: var(--text-light); font-weight: 400; }
.search-result-item { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 18px 22px; margin-bottom: 12px; transition: all .2s; }
.search-result-item:hover { border-color: var(--blue); box-shadow: 0 6px 20px rgba(22,96,201,.1); }
.search-result-item h3 { font-size: 16px; color: var(--text); margin-bottom: 6px; }
.search-result-item:hover h3 { color: var(--blue); }
.search-result-item p { font-size: 13.5px; color: var(--text-light); line-height: 1.8; margin-bottom: 6px; }
.search-result-item .meta { font-size: 12.5px; color: var(--text-light); }
.search-result-item mark { background: var(--gold-light); color: var(--blue-deep); padding: 0 2px; border-radius: 2px; }
.search-empty { padding: 60px 0; text-align: center; color: var(--text-light); font-size: 14px; }
.search-empty .big { font-size: 38px; color: var(--line); margin-bottom: 12px; }

/* ---------- 响应式 ---------- */
@media (max-width: 1100px) {
  .main-nav-in { gap: 10px; }
  .nav-item > a { padding: 0 16px; }
  .nav-search-input { min-width: 120px; }
}
@media (max-width: 900px) {
  .main-nav-in { height: 60px; }
  .logo-text i { display: none; }
  .logo-text b { font-size: 18px; }
  .logo-mark { width: 36px; height: 36px; font-size: 22px; }
  .nav-list { display: none; }
  .main-nav-in > .nav-search { flex: 1; margin-left: 12px; }
  .mega-menu, .drop-menu { top: 60px; }
  .section-head h2 { font-size: 22px; }
  .hero { height: 380px; }
  .hero-caption h2 { font-size: 28px; }
}
@media (max-width: 600px) {
  .container { width: 100%; padding: 0 16px; }
  .series-grid, .solu-grid { grid-template-columns: repeat(2, 1fr); }
  .product-grid, .news-cols, .support-list, .culture-grid { grid-template-columns: 1fr; }
  .lead-grid, .about-stats { grid-template-columns: 1fr; }
  .pd-wrap { grid-template-columns: 1fr; }
  .pd-head { flex-direction: column; }
  .pd-photo { flex: none; width: 100%; }
  .footer-in { grid-template-columns: 1fr; }
  .news-row { flex-wrap: wrap; }
  .search-form-bar { padding: 14px; }
  .search-form-bar button { padding: 8px 16px; font-size: 13.5px; }
}

/* ---------- v3.0 导航栏：高度 80px；LOGO 仅显示图片（220×50），不再显示中英文文字 ---------- */
.nav-logo { min-width: 220px; min-height: 50px; }
.nav-logo .nav-logo-img { width: 220px; height: 50px; object-fit: contain; object-position: left center; display: block; }
@media (max-width: 900px) {
  .nav-logo { min-width: 168px; min-height: 38px; }
  .nav-logo .nav-logo-img { width: 168px; height: 38px; }
}

/* ---------- v3.1 导航三级联动面板（产品 / 解决方案）---------- */
.mega-panel, .main-nav-in > .drop-menu {
  position: absolute; top: 80px; left: 0; right: 0;
  background: #fff; box-shadow: 0 18px 40px rgba(11,61,143,.16);
  border-top: 3px solid var(--blue); border-radius: 0 0 10px 10px;
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: opacity .2s, visibility .2s, transform .2s; z-index: 950;
}
.mega-panel.show, .main-nav-in > .drop-menu.show { opacity: 1; visibility: visible; transform: translateY(0); }
.main-nav-in > .drop-menu { left: 50%; right: auto; transform: translateX(-50%) translateY(-6px); }
.main-nav-in > .drop-menu.show { transform: translateX(-50%) translateY(0); }
.mega-panel { display: flex; min-height: 260px; }
.mp-col { padding: 18px 0; }
.mp-l1 { flex: 0 0 260px; background: #fafcff; border-right: 1px solid var(--line); border-radius: 0 0 0 8px; }
.mp-l2 { flex: 0 0 220px; border-right: 1px solid var(--line); }
.mp-l2-wide { flex: 1 1 auto; }
.mp-l3 { flex: 1 1 auto; padding: 18px 26px; }
.mega-l1, .mega-l2 { display: flex; align-items: center; gap: 10px; padding: 11px 22px; font-size: 14.5px; color: var(--text); cursor: pointer; transition: all .16s; }
.mega-l1 { font-weight: 500; }
.mega-l2 { font-size: 13.6px; color: var(--text-light); }
.mega-l1:hover, .mega-l1.on { background: #fff; color: var(--blue); box-shadow: inset 3px 0 0 var(--gold); }
.mega-l2:hover, .mega-l2.on { color: var(--blue); background: var(--blue-light); }
.mp-ico {
  width: 30px; height: 30px; flex: 0 0 30px; border-radius: 8px;
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-deep) 100%);
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-style: normal; overflow: hidden;
}
.mp-ico img { width: 100%; height: 100%; object-fit: contain; }
.mp-ico em { font-style: normal; font-weight: 600; }
.mp-name { flex: 1 1 auto; }
.mp-arrow { font-style: normal; color: var(--text-light); font-size: 15px; }
.mega-l1.on .mp-arrow, .mega-l2.on .mp-arrow { color: var(--blue); }
.mp-pane2, .mp-pane3 { display: none; }
.mp-pane2.on, .mp-pane3.on { display: block; }
/* v3.2 三级产品以「列」呈现：单列最多 8 行，满 8 个自动排到下一列 */
.mp-l3 .mp-pane3.on { display: block; }
.mp-pgroup-wrap { display: flex; align-items: flex-start; gap: 0 26px; }
.mp-pgroup { flex: 1 1 0; min-width: 0; max-width: 300px; display: flex; flex-direction: column; }
.mp-l3 .mega-p {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 7px 10px; background: transparent; border-radius: 6px;
  font-size: 13.2px; max-width: 100%;
}
.mp-l3 .mega-p b { font-weight: 400; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mp-l3 .mega-p em { border-left: none; padding-left: 0; font-size: 11.5px; white-space: nowrap; }
.mp-l3 .mega-p:hover { background: var(--blue-light); color: var(--blue); }
.mp-l3 .mega-p:hover em { color: var(--blue); border-color: transparent; }
.mega-p {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 15px; background: var(--bg-gray); border-radius: 16px;
  font-size: 13px; color: var(--text); transition: all .16s; max-width: 100%;
}
.mega-p b { font-weight: 500; }
.mega-p em { font-style: normal; font-size: 11.5px; color: var(--text-light); border-left: 1px solid var(--line); padding-left: 8px; }
.mega-p:hover { background: var(--blue); color: #fff; }
.mega-p:hover em { color: rgba(255,255,255,.82); border-color: rgba(255,255,255,.35); }
.mega-p-sol { border-radius: 8px; padding: 12px 18px; width: 100%; }
.mp-more { display: block; width: 100%; margin-top: 6px; font-size: 13px; color: var(--blue); }
.mp-more:hover { color: var(--blue-deep); }

/* ---------- v3.1 轮播：文字与导航 LOGO 左对齐 + 向上移动出现 ---------- */
.hero-caption { max-width: none; }
.hero-caption h2, .hero-caption p { max-width: 820px; opacity: 0; }
.hero-slide.active .hero-caption h2 { animation: heroUp .85s cubic-bezier(.22,.68,.36,1) .12s both; }
.hero-slide.active .hero-caption p { animation: heroUp .85s cubic-bezier(.22,.68,.36,1) .32s both; }
@keyframes heroUp { from { opacity: 0; transform: translateY(46px); } to { opacity: 1; transform: translateY(0); } }
@media (prefers-reduced-motion: reduce) {
  .hero-slide.active .hero-caption h2, .hero-slide.active .hero-caption p { animation: none; opacity: 1; }
}

/* ---------- v3.1 首页产品中心：图标 + 分类切换展示框 ---------- */
.pc-tabs { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 26px; }
.pc-tab {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 22px 12px 14px; background: #fff;
  border: 1px solid var(--line); border-radius: 30px;
  font-size: 15px; color: var(--text); transition: all .2s; cursor: pointer;
}
.pc-tab .pc-ico {
  width: 34px; height: 34px; flex: 0 0 34px; border-radius: 9px;
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-deep) 100%);
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-size: 15px; font-style: normal; overflow: hidden;
}
.pc-tab .pc-ico img { width: 100%; height: 100%; object-fit: contain; }
.pc-tab:hover { border-color: var(--blue); color: var(--blue); transform: translateY(-2px); }
.pc-tab.on { background: var(--blue); border-color: var(--blue); color: #fff; box-shadow: 0 8px 20px rgba(22,96,201,.22); }
.pc-tab.on .pc-ico { background: rgba(255,255,255,.22); }
.pc-panels { position: relative; }
.pc-panel { display: none; }
/* v3.3 面板整体不再做淡入，改为卡片逐个波浪式出现（见 .pc-card） */
.pc-panel.on { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.pc-box {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 22px 18px; transition: all .22s;
}
.pc-box:hover { border-color: var(--blue); box-shadow: 0 12px 30px rgba(22,96,201,.13); transform: translateY(-3px); }
.pc-box h4 { font-size: 16px; color: var(--blue-deep); margin-bottom: 12px; padding-bottom: 10px; border-bottom: 1px solid var(--line); }
.pc-box h4 a:hover { color: var(--blue); }
.pc-list { list-style: none; }
.pc-list li { border-bottom: 1px dashed var(--line); }
.pc-list li:last-child { border-bottom: none; }
.pc-list a { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 9px 2px; font-size: 13.5px; color: var(--text); transition: all .16s; }
.pc-list a:hover { color: var(--blue); padding-left: 6px; }
.pc-list a b { font-weight: 400; }
.pc-list a em { font-style: normal; font-size: 12px; color: var(--text-light); white-space: nowrap; }
.pc-list a:hover em { color: var(--blue); }
.pc-empty { grid-column: 1 / -1; padding: 30px; text-align: center; color: var(--text-light); font-size: 14px; background: #fff; border: 1px dashed var(--line); border-radius: var(--radius); }
@media (max-width: 900px) {
  .pc-panel.on { grid-template-columns: repeat(2, 1fr); }
  .mega-panel { min-height: 0; }
}
@media (max-width: 600px) {
  .pc-panel.on { grid-template-columns: 1fr; }
}

/* ---------- v3.2 首页产品中心：一排「图标 + 文字」分类 + 图片卡片波浪式出现 ---------- */
.pc-tabs {
  display: flex; flex-wrap: nowrap; gap: 0; margin-bottom: 30px;
  border-bottom: 1px solid var(--line); overflow-x: auto; scrollbar-width: none;
}
.pc-tabs::-webkit-scrollbar { display: none; }
.pc-tab {
  flex: 1 1 0; min-width: 118px;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  padding: 16px 8px 14px; margin-bottom: -1px;
  background: none; border: none; border-bottom: 2px solid transparent; border-radius: 0;
  font-size: 14.5px; color: var(--text); cursor: pointer;
  transition: color .2s, border-color .2s; white-space: nowrap;
}
.pc-tab .pc-ico {
  width: 46px; height: 46px; flex: 0 0 46px; border-radius: 50%;
  background: linear-gradient(135deg, #7ea6dd 0%, var(--blue-deep) 100%);
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-size: 17px; font-style: normal; overflow: hidden;
  transition: transform .25s, box-shadow .25s, background .25s;
}
.pc-tab .pc-ico img { width: 100%; height: 100%; object-fit: contain; }
.pc-tab .pc-ico em { font-style: normal; font-weight: 600; }
.pc-tab:hover { color: var(--blue); transform: none; }
.pc-tab:hover .pc-ico { transform: translateY(-4px); box-shadow: 0 10px 20px rgba(22,96,201,.24); }
.pc-tab.on {
  background: none; border-bottom-color: var(--blue); box-shadow: none;
  color: var(--blue); font-weight: 500;
}
.pc-tab.on .pc-ico {
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-deep) 100%);
  box-shadow: 0 10px 22px rgba(22,96,201,.30);
}

/* 图片卡片（二级子分类，不显示产品型号）v3.3：一行四张，卡片高度 350px */
.pc-panel.on { grid-template-columns: repeat(4, 1fr); gap: 20px; }
.pc-card {
  position: relative; display: block; overflow: hidden; height: 350px;
  border-radius: var(--radius); background: #eef3fa;
  box-shadow: 0 4px 14px rgba(11,61,143,.07);
  animation: pcWave .62s cubic-bezier(.22,.68,.36,1) both;
  transition: box-shadow .25s;
}
.pc-card:hover { box-shadow: 0 16px 34px rgba(11,61,143,.20); }
@keyframes pcWave {
  0%   { opacity: 0; transform: translateY(38px) scale(.955); }
  55%  { opacity: 1; }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}
.pc-card-img {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  background-color: #dfe9f6; transition: transform .5s cubic-bezier(.22,.68,.36,1);
}
.pc-card:hover .pc-card-img { transform: scale(1.07); }
.pc-card-img.no-img { background: linear-gradient(135deg, #dbe8f8 0%, #b9d2ee 55%, #9dc0e6 100%); }
.pc-card-ph {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  font-size: 62px; font-weight: 700; color: rgba(255,255,255,.72); letter-spacing: 2px;
  text-shadow: 0 6px 18px rgba(11,61,143,.22);
}
.pc-card-cap {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 40px 18px 16px;
  background: linear-gradient(to top, rgba(6,42,79,.86) 0%, rgba(6,42,79,.45) 55%, rgba(6,42,79,0) 100%);
  color: #fff;
}
.pc-card-cap b { display: block; font-size: 16.5px; font-weight: 500; }
.pc-card-cap em { display: block; margin-top: 3px; font-style: normal; font-size: 11.5px; letter-spacing: .5px; color: rgba(255,255,255,.72); text-transform: uppercase; }
.pc-card-go {
  position: absolute; right: 16px; top: 14px; padding: 5px 12px; border-radius: 20px;
  background: rgba(255,255,255,.92); color: var(--blue-deep); font-size: 12px;
  opacity: 0; transform: translateY(-6px); transition: all .25s;
}
.pc-card:hover .pc-card-go { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .pc-card { animation: none; }
  .pc-card-img { transition: none; }
}
/* 一行四张时的降级：窄屏依次 3 / 2 / 1 列 */
@media (max-width: 1200px) { .pc-panel.on { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 900px) { .pc-panel.on { grid-template-columns: repeat(2, 1fr); } .pc-card { height: 300px; } }
@media (max-width: 600px) {
  .pc-tab { min-width: 96px; font-size: 13.5px; padding: 12px 6px 10px; }
  .pc-tab .pc-ico { width: 38px; height: 38px; flex: 0 0 38px; font-size: 15px; }
  .pc-panel.on { grid-template-columns: 1fr; }
  .pc-card { height: 260px; }
}
.hero-caption.hero-center { text-align: center; }
.hero-caption.hero-center h2, .hero-caption.hero-center p { margin-left: auto; margin-right: auto; }

/* ---------- v3.3 导航三级菜单最右侧「推荐位」（180×200，图片 / ≤20s 视频）---------- */
.mp-l4 { flex: 0 0 224px; padding: 18px 22px; border-left: 1px solid var(--line); align-self: stretch; }
.mp-promo { display: none; }
.mp-promo.on { display: block; }
.mp-promo-box {
  position: relative; display: block; width: 180px; height: 200px;
  border-radius: 10px; overflow: hidden; background: var(--blue-light);
  box-shadow: 0 6px 16px rgba(11,61,143,.10); transition: box-shadow .25s;
}
a.mp-promo-box:hover { box-shadow: 0 12px 26px rgba(11,61,143,.22); }
.mp-promo-media { width: 100%; height: 100%; object-fit: cover; display: block; }
.mp-promo-ph {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 4px;
  background: linear-gradient(135deg, #dbe8f8 0%, #b9d2ee 55%, #9dc0e6 100%);
  color: rgba(255,255,255,.92); text-align: center;
}
.mp-promo-ph b { font-size: 34px; font-weight: 700; text-shadow: 0 6px 16px rgba(11,61,143,.22); }
.mp-promo-ph i { font-style: normal; font-size: 11px; letter-spacing: 1px; opacity: .85; }
.mp-promo-cap {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 26px 12px 10px;
  background: linear-gradient(to top, rgba(6,42,79,.88) 0%, rgba(6,42,79,.40) 60%, rgba(6,42,79,0) 100%);
  color: #fff; font-size: 13px; text-align: center; white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis;
}
.mp-promo-box.mp-promo-none { cursor: default; }

/* ---------- v3.3 解决方案 385×485 大图框：窄屏降级 ---------- */
@media (max-width: 1240px) {
  .solu-grid { grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .solu-card { width: auto; height: 460px; }
}
@media (max-width: 900px) {
  .solu-grid { grid-template-columns: repeat(2, 1fr); }
  .solu-card { height: 420px; }
}
@media (max-width: 600px) {
  .solu-grid { grid-template-columns: 1fr; }
  .solu-card { height: 360px; }
  .solu-ph { font-size: 72px; }
  .solu-body { padding: 20px; }
  .solu-body h3 { font-size: 18px; }
}