/*
Theme Name: PHHDPE
Theme URI: https://www.phhdpe.com/
Author: Puhui International
Description: 普惠国际中文站定制主题 — era 1:1 版式首页(全屏Banner/领域大图Tab/新品推荐)+ lessopipe 应用领域分类
Version: 2.0.0
Text Domain: phhdpe
*/

:root {
  --blue: #35a743;
  --blue-dark: #237a31;
  --blue-deep: #0e3a17;
  --orange: #f08300;
  --text: #333;
  --text-light: #888;
  --line: #e5e8ec;
  --bg-gray: #f5f7fa;
  --max-w: 1600px;
  --head-h: 96px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  font-size: 16px;
  line-height: 1.75;
  background: #fff;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
.wrap { max-width: var(--max-w); margin: 0 auto; padding: 0 40px; }

/* ---------- Header (era 白条) ---------- */
.site-header {
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 900;
  box-shadow: 0 2px 14px rgba(20, 80, 35, .08);
}
/* 首页:悬浮白条(两侧留边,盖在全屏 Banner 上) */
.home .site-header {
  position: absolute;
  top: 34px;
  left: 70px;
  right: 70px;
  box-shadow: 0 10px 34px rgba(0, 0, 0, .16);
}
/* 滚动后:全宽固定贴顶 */
.home .site-header.fixed {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  animation: headDown .35s ease;
  box-shadow: 0 2px 14px rgba(20, 80, 35, .12);
}
@keyframes headDown { from { transform: translateY(-100%); } to { transform: none; } }
.site-header .wrap { display: flex; align-items: center; height: var(--head-h); max-width: none; padding: 0 0 0 48px; }
.site-logo { display: flex; align-items: center; gap: 12px; margin-right: auto; }
.site-logo img { height: 54px; width: auto; }
.site-logo .logo-text { font-size: 26px; font-weight: 700; color: var(--blue-dark); letter-spacing: 2px; line-height: 1.2; display: block; }
.site-logo .logo-sub { font-size: 11px; color: var(--text-light); letter-spacing: 1.5px; display: block; }
.main-nav ul { display: flex; }
.main-nav li { position: relative; }
.main-nav li > a {
  display: block;
  padding: 0 30px;
  line-height: var(--head-h);
  font-size: 17px;
  font-weight: 500;
  white-space: nowrap;
  transition: color .2s;
  position: relative;
}
.main-nav li > a:hover, .main-nav li.current > a { color: var(--blue); }
.main-nav li.current > a::after {
  content: ""; position: absolute; left: 30px; right: 30px; bottom: 22px; height: 3px; background: var(--blue);
}
.main-nav .sub {
  position: absolute; top: 100%; left: 50%; transform: translateX(-50%);
  background: #fff; min-width: 190px; box-shadow: 0 10px 28px rgba(0,0,0,.14);
  opacity: 0; visibility: hidden; transition: all .2s; padding: 10px 0;
}
.main-nav li:hover .sub { opacity: 1; visibility: visible; }
.main-nav .sub a { display: block; padding: 10px 22px; line-height: 1.5; font-size: 15px; text-align: center; }
.main-nav .sub a:hover { background: var(--bg-gray); color: var(--blue); }
.header-tel { display: flex; align-items: center; gap: 8px; padding: 0 34px; color: var(--blue-dark); white-space: nowrap; }
.header-tel b { font-size: 20px; }
.header-tel small { display: block; font-size: 11px; color: var(--text-light); line-height: 1.3; }
.nav-toggle {
  display: none; background: var(--blue); border: none; width: 72px; height: 72px; cursor: pointer; flex: 0 0 auto;
}
.nav-toggle span { display: block; width: 26px; height: 2px; background: #fff; margin: 6px auto; transition: .3s; }

/* ---------- 全屏 Hero(首页导航悬浮其上,占满整屏) ---------- */
.hero { position: relative; overflow: hidden; background: var(--blue-deep); height: 100vh; min-height: 560px; }
.hero-track { display: flex; height: 100%; transition: transform .7s ease; }
.hero-slide { position: relative; flex: 0 0 100%; height: 100%; }
.hero-slide img { width: 100%; height: 100%; object-fit: cover; }
.hero-slide .hero-text {
  position: absolute; top: 50%; transform: translateY(-50%);
  left: max(48px, calc((100% - var(--max-w)) / 2 + 40px));
  color: #fff; max-width: 640px; text-shadow: 0 2px 14px rgba(0,0,0,.45);
}
.hero-text h2 { font-size: 52px; line-height: 1.35; margin-bottom: 16px; letter-spacing: 3px; font-weight: 700; }
.hero-text p { font-size: 19px; margin-bottom: 30px; opacity: .92; letter-spacing: 1px; }
.btn {
  display: inline-block; padding: 13px 38px; border-radius: 2px;
  background: var(--blue); color: #fff; font-size: 16px; transition: .25s; border: 1px solid var(--blue);
}
.btn:hover { background: var(--orange); border-color: var(--orange); }
.btn.ghost { background: transparent; border-color: rgba(255,255,255,.7); margin-left: 10px; }
.btn.ghost:hover { background: rgba(255,255,255,.15); border-color: #fff; }
.hero-dots { position: absolute; bottom: 34px; left: 0; right: 0; display: flex; justify-content: center; gap: 14px; z-index: 5; }
.hero-dots button {
  width: 12px; height: 12px; border-radius: 50%; border: 2px solid rgba(255,255,255,.75);
  background: transparent; cursor: pointer; transition: .3s; padding: 0;
}
.hero-dots button.on { background: #fff; border-color: #fff; }

/* ---------- 数字统计区(era 白底) ---------- */
.stats { background: #fff; border-bottom: 1px solid var(--line); }
.stats .wrap { display: flex; padding: 70px 40px; }
.stat { flex: 1; text-align: center; position: relative; }
.stat + .stat::before { content: ""; position: absolute; left: 0; top: 12%; bottom: 12%; width: 1px; background: var(--line); }
.stat b { font-size: 58px; font-weight: 700; line-height: 1.15; color: var(--blue-dark); font-family: Arial, sans-serif; }
.stat b i { font-style: normal; font-size: 24px; font-weight: 600; margin-left: 4px; }
.stat span { display: block; font-size: 16px; color: var(--text-light); margin-top: 8px; }

/* ---------- era 式区块标题 ---------- */
.era-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 46px; }
.era-head h2 { font-size: 40px; color: #222; letter-spacing: 2px; font-weight: 700; }
.era-head h2 span { font-size: 17px; color: #aab3bd; font-weight: 400; margin-left: 14px; letter-spacing: 2px; }
.era-head .more { color: var(--text-light); font-size: 15px; transition: .2s; }
.era-head .more:hover { color: var(--blue); }
.section { padding: 90px 0; }
.section.gray { background: var(--bg-gray); }

/* ---------- 应用领域大图 Tab(era 招牌区) ---------- */
.field-sec { position: relative; height: 720px; overflow: hidden; }
.field-pane {
  position: absolute; inset: 0; opacity: 0; visibility: hidden; transition: opacity .6s;
  background-size: cover; background-position: center;
}
.field-pane.on { opacity: 1; visibility: visible; }
.field-pane::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(9,42,16,.82) 0%, rgba(9,42,16,.45) 45%, rgba(9,42,16,.05) 75%);
}
.field-info { position: relative; z-index: 2; max-width: var(--max-w); margin: 0 auto; padding: 100px 40px 0; color: #fff; }
.field-info .en { font-size: 15px; letter-spacing: 4px; text-transform: uppercase; opacity: .7; }
.field-info h3 { font-size: 44px; letter-spacing: 3px; margin: 6px 0 12px; }
.field-info .slogan { font-size: 18px; opacity: .9; margin-bottom: 36px; }
.field-mods { display: grid; grid-template-columns: repeat(2, 240px); gap: 14px 20px; margin-bottom: 40px; }
.field-mods a {
  display: block; padding: 12px 20px; border: 1px solid rgba(255,255,255,.35); border-radius: 2px;
  font-size: 15.5px; transition: .25s; background: rgba(255,255,255,.08); backdrop-filter: blur(2px);
}
.field-mods a:hover { background: var(--blue); border-color: var(--blue); }
.field-nav {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 5; display: flex;
  background: rgba(7,32,12,.55); backdrop-filter: blur(6px);
}
.field-nav button {
  flex: 1; background: none; border: none; border-left: 1px solid rgba(255,255,255,.14);
  color: #fff; padding: 20px 6px 18px; cursor: pointer; font-size: 16.5px; transition: .25s;
  display: flex; flex-direction: column; align-items: center; gap: 8px; font-family: inherit;
}
.field-nav button:first-child { border-left: none; }
.field-nav button svg { width: 34px; height: 34px; fill: none; stroke: #fff; stroke-width: 1.6; opacity: .9; }
.field-nav button.on, .field-nav button:hover { background: var(--blue); }

/* ---------- 新品推荐(era 横向卡片) ---------- */
.arrivals { position: relative; }
.arrivals-row {
  display: flex; gap: 24px; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 10px;
  scrollbar-width: none;
}
.arrivals-row::-webkit-scrollbar { display: none; }
.arr-card {
  flex: 0 0 calc((100% - 72px) / 4); scroll-snap-align: start; min-width: 0; overflow: hidden;
  background: #fff; border: 1px solid var(--line); transition: .3s; display: block; padding: 30px 28px 26px;
}
.arr-card:hover { box-shadow: 0 14px 34px rgba(20,80,35,.14); transform: translateY(-4px); }
.arr-card .field-tag { color: var(--blue); font-size: 14px; letter-spacing: 1px; }
.arr-card h3 { font-size: 19px; font-weight: 600; margin: 4px 0 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.arr-card .sub-line { color: var(--text-light); font-size: 14px; margin-bottom: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.arr-card .pic { height: 220px; display: flex; align-items: center; justify-content: center; overflow: hidden; margin-bottom: 16px; }
.arr-card .pic img { max-height: 100%; width: auto; object-fit: contain; transition: transform .4s; }
.arr-card:hover .pic img { transform: scale(1.06); }
.arr-card .go { color: var(--text-light); font-size: 14px; border-top: 1px solid var(--bg-gray); padding-top: 14px; display: block; transition: .2s; }
.arr-card:hover .go { color: var(--blue); }
.arr-btns { position: absolute; right: 40px; top: 8px; display: flex; gap: 10px; }
.arr-btns button {
  width: 44px; height: 44px; border: 1px solid var(--line); background: #fff; cursor: pointer;
  font-size: 18px; color: #666; transition: .2s; border-radius: 50%;
}
.arr-btns button:hover { background: var(--blue); border-color: var(--blue); color: #fff; }

/* ---------- 新闻中心 ---------- */
.news-grid { display: grid; grid-template-columns: 1.25fr 1fr 1fr; gap: 30px; }
.news-first { overflow: hidden; background: #fff; border: 1px solid var(--line); display: block; }
.news-first .pic { height: 280px; overflow: hidden; }
.news-first .pic img { width: 100%; height: 100%; object-fit: cover; transition: .4s; }
.news-first:hover .pic img { transform: scale(1.05); }
.news-first .body { padding: 22px 26px; }
.news-first h3 { font-size: 19px; line-height: 1.5; margin-bottom: 8px; }
.news-first:hover h3 { color: var(--blue); }
.news-first p { font-size: 14px; color: var(--text-light); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-first time { display: block; margin-top: 12px; color: #aaa; font-size: 13px; }
.news-list { display: flex; flex-direction: column; gap: 16px; }
.news-item { background: #fff; border: 1px solid var(--line); padding: 20px 24px; display: block; transition: .25s; }
.news-item:hover { border-color: var(--blue); box-shadow: 0 8px 20px rgba(20,80,35,.1); }
.news-item h3 { font-size: 16px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.news-item:hover h3 { color: var(--blue); }
.news-item time { font-size: 13px; color: #aaa; }

/* ---------- 服务卡片 ---------- */
.svc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.svc-card {
  position: relative; overflow: hidden; height: 210px; display: flex;
  align-items: center; padding: 0 50px; color: #fff;
  background: linear-gradient(120deg, var(--blue-dark), var(--blue));
}
.svc-card.alt { background: linear-gradient(120deg, #b35f00, var(--orange)); }
.svc-card h3 { font-size: 28px; margin-bottom: 8px; letter-spacing: 2px; }
.svc-card p { opacity: .9; font-size: 15px; margin-bottom: 16px; }
.svc-card .btn { background: rgba(255,255,255,.16); border-color: rgba(255,255,255,.6); padding: 9px 26px; font-size: 14px; }
.svc-card .btn:hover { background: #fff; color: var(--blue-dark); }

/* ---------- Footer ---------- */
.site-footer { background: #0b2611; color: #97b89f; font-size: 14px; }
.footer-main { display: flex; gap: 50px; padding: 66px 0 46px; flex-wrap: wrap; align-items: flex-start; justify-content: space-between; max-width: var(--max-w); margin: 0 auto; padding-left: 40px; padding-right: 40px; }
.footer-col { flex: 1 1 auto; min-width: 150px; }
.footer-col h4 { color: #fff; font-size: 17px; margin-bottom: 20px; letter-spacing: 1px; }
.footer-col li { margin-bottom: 11px; }
.footer-col a:hover { color: #fff; }
.footer-contact p { margin-bottom: 10px; }
.footer-contact b { color: #fff; font-size: 24px; font-family: Arial; }

/* 页脚右侧:获取报价 / 二维码 */
.footer-cta { flex: 0 0 300px; max-width: 300px; }
.footer-cta > p { margin-bottom: 16px; line-height: 1.8; }
.footer-qr { display: flex; gap: 12px; align-items: center; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1); padding: 12px; margin-bottom: 16px; }
.footer-qr img { width: 92px; height: 92px; flex: 0 0 92px; background: #fff; padding: 4px; object-fit: cover; }
.footer-qr-txt b { display: block; color: #fff; font-size: 15px; margin-bottom: 6px; letter-spacing: 1px; }
.footer-qr-txt span { font-size: 13px; line-height: 1.7; }
.footer-btns { display: flex; gap: 10px; }
.footer-btns .btn { flex: 1; text-align: center; padding: 10px 0; font-size: 14px; background: var(--orange); border: 1px solid var(--orange); color: #fff; }
.footer-btns .btn:hover { filter: brightness(1.1); }
.footer-btns .btn-line { background: transparent; border-color: rgba(255,255,255,.35); color: #cfe0d4; }
.footer-btns .btn-line:hover { background: rgba(255,255,255,.1); color: #fff; filter: none; }
.footer-time { margin-top: 14px; font-size: 13px; color: #7ea589; }

.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding: 20px 0; font-size: 13px; text-align: center; color: #6e8f76; }
.footer-bottom-inner { display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; text-align: left; }
.footer-bottom-links { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.footer-bottom-links a:hover { color: #fff; }
.footer-bottom-links b { color: #cfe0d4; font-family: Arial; letter-spacing: .5px; }

/* ---------- 内页横幅(era 式左对齐) ---------- */
.page-banner {
  position: relative;
  background-color: var(--blue-deep);
  background-size: cover !important;
  background-position: center !important;
  background-repeat: no-repeat !important;
  color: #fff;
}
.page-banner::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(9,42,16,.72) 0%, rgba(9,42,16,.35) 55%, rgba(9,42,16,.05) 85%);
}
.page-banner .banner-inner {
  position: relative; z-index: 2; max-width: 1280px; margin: 0 auto;
  padding: 96px 20px 70px; text-align: left;
}
.page-banner .en { font-size: 14px; letter-spacing: 6px; text-transform: uppercase; opacity: .7; }
.page-banner h1 { font-size: 44px; letter-spacing: 4px; margin: 4px 0 14px; }
.page-banner .bar { width: 54px; height: 3px; background: var(--blue); margin-bottom: 16px; }
.page-banner .crumb { font-size: 13px; color: #d3ead7; }
.page-banner .crumb a:hover { color: #fff; }
.inner { padding: 60px 0; }
.inner .wrap, .section .wrap { max-width: 1280px; }
.stats .wrap, .field-info { max-width: var(--max-w); }
.inner-flex { display: flex; gap: 40px; align-items: flex-start; }
.side-cats { flex: 0 0 260px; }
.side-cats h3 { background: var(--blue); color: #fff; padding: 16px 22px; font-size: 18px; }
.side-cats ul { border: 1px solid var(--line); border-top: none; }
.side-cats li a { display: block; padding: 13px 22px; border-bottom: 1px solid var(--bg-gray); font-size: 15px; transition: .2s; }
.side-cats li:last-child a { border-bottom: none; }
.side-cats li a:hover, .side-cats li.on a { background: #e9f6ec; color: var(--blue); font-weight: 600; }
.side-cats li.sub a { padding-left: 40px; font-size: 14px; color: #666; }
.main-col { flex: 1; min-width: 0; }
.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.prod-grid-4 { grid-template-columns: repeat(4, 1fr); }
.prod-card { background: #fff; border: 1px solid var(--line); overflow: hidden; transition: .3s; display: block; }
.prod-card:hover { box-shadow: 0 12px 30px rgba(20,80,35,.14); transform: translateY(-4px); }
.prod-card .pic { background: #fff; height: 230px; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.prod-card .pic img { max-height: 100%; width: auto; object-fit: contain; transition: transform .4s; }
.prod-card:hover .pic img { transform: scale(1.05); }
.prod-card h3 {
  font-size: 15px; font-weight: 500; padding: 14px 16px; text-align: center; border-top: 1px solid var(--bg-gray);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.prod-card:hover h3 { color: var(--blue); }
.news-row { display: flex; gap: 24px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.news-row .pic { flex: 0 0 220px; height: 140px; overflow: hidden; }
.news-row .pic img { width: 100%; height: 100%; object-fit: cover; }
.news-row h3 { font-size: 18px; margin-bottom: 8px; }
.news-row h3 a:hover { color: var(--blue); }
.news-row p { color: var(--text-light); font-size: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-row time { color: #aaa; font-size: 13px; }
.single-title { font-size: 28px; margin-bottom: 12px; }
.single-meta { color: #999; font-size: 13px; margin-bottom: 26px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.entry-content { font-size: 15.5px; color: #444; }
.entry-content p { margin-bottom: 16px; }
.entry-content img { margin: 14px auto; }
.entry-content h2, .entry-content h3 { margin: 26px 0 12px; color: #222; }
.entry-content table { border-collapse: collapse; width: 100%; margin: 16px 0; font-size: 14px; }
.entry-content table td, .entry-content table th { border: 1px solid var(--line); padding: 8px 12px; }
.entry-content table tr:nth-child(odd) { background: var(--bg-gray); }
.post-nav { display: flex; justify-content: space-between; margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 14px; gap: 20px; }
.post-nav a:hover { color: var(--blue); }
.prod-top { display: flex; gap: 44px; margin-bottom: 40px; }
.prod-top .gallery { flex: 0 0 46%; }
.prod-top .main-pic { border: 1px solid var(--line); padding: 20px; background: #fff; }
.prod-top .main-pic img { display: block; margin: 0 auto; width: 100%; max-height: 420px; object-fit: contain; }
.prod-top .thumbs { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.prod-top .thumbs img { width: calc((100% - 40px) / 5); aspect-ratio: 1; object-fit: cover; border: 2px solid var(--line); border-radius: 4px; cursor: pointer; transition: .2s; background: #fff; }
.prod-top .thumbs img:hover, .prod-top .thumbs img.on { border-color: var(--blue); }
.prod-top .info h1 { font-size: 26px; margin-bottom: 14px; }
.prod-top .info .desc { color: #555; font-size: 15px; margin-bottom: 20px; }
.prod-top .contact-box { background: var(--bg-gray); padding: 18px 22px; margin: 22px 0; font-size: 15px; }
.prod-top .contact-box b { color: var(--blue-dark); font-size: 20px; }
.sec-head { text-align: center; margin-bottom: 44px; }
.sec-head h2 { font-size: 30px; color: #222; letter-spacing: 2px; }
.sec-head .bar { width: 46px; height: 3px; background: var(--blue); margin: 14px auto 0; }
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 40px; }
.pagination .page-numbers {
  min-width: 38px; height: 38px; line-height: 36px; text-align: center; border: 1px solid var(--line);
  font-size: 14px; padding: 0 8px; display: inline-block;
}
.pagination .page-numbers.current, .pagination .page-numbers:hover { background: var(--blue); color: #fff; border-color: var(--blue); }

/* ---------- 产品分类页(联塑 products 版式) ---------- */
.cat-tabs {
  background: #fff; border-bottom: 1px solid var(--line); display: flex; justify-content: center;
  position: sticky; top: 0; z-index: 700; box-shadow: 0 2px 10px rgba(0,0,0,.04);
}
.cat-tabs a { padding: 18px 40px; font-size: 16.5px; position: relative; transition: .2s; white-space: nowrap; }
.cat-tabs a:hover, .cat-tabs a.on { color: var(--blue); }
.cat-tabs a.on::after { content: ""; position: absolute; left: 40px; right: 40px; bottom: 0; height: 3px; background: var(--blue); }
.cat-subtabs { background: var(--bg-gray); border-bottom: 1px solid var(--line); }
.cat-subtabs .wrap { display: flex; gap: 12px; padding-top: 18px; padding-bottom: 18px; flex-wrap: wrap; }
.cat-subtabs a {
  padding: 8px 26px; border: 1px solid var(--line); border-radius: 20px; background: #fff;
  font-size: 15px; transition: .2s; color: #555;
}
.cat-subtabs a:hover, .cat-subtabs a.on { background: var(--blue); border-color: var(--blue); color: #fff; }
.inner.gray-bg { background: var(--bg-gray); }
.lesso-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.lp-item {
  background: #fff; border: 1px solid var(--line); padding: 26px 26px 22px; display: flex; flex-direction: column;
  transition: .3s;
}
.lp-item:hover { box-shadow: 0 16px 38px rgba(20,80,35,.14); transform: translateY(-5px); border-color: transparent; }
.lp-item .img { height: 230px; display: flex; align-items: center; justify-content: center; overflow: hidden; margin-bottom: 18px; }
.lp-item .img img { max-height: 100%; width: auto; object-fit: contain; transition: transform .4s; }
.lp-item:hover .img img { transform: scale(1.05); }
.lp-item .t { font-size: 19px; font-weight: 600; margin-bottom: 8px; }
.lp-item:hover .t { color: var(--blue); }
.lp-item .p {
  font-size: 14px; color: var(--text-light); line-height: 1.7; margin-bottom: 16px;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; flex: 1;
}
.lp-item .detail { font-size: 14px; color: var(--blue); border-top: 1px solid var(--bg-gray); padding-top: 14px; }

/* ---------- 关于我们(联塑 AboutUs 版式) ---------- */
.about-subnav {
  position: sticky; top: 0; z-index: 700; background: #fff; border-bottom: 1px solid var(--line);
  display: flex; justify-content: center; gap: 0; box-shadow: 0 2px 10px rgba(0,0,0,.04);
}
.about-subnav a { padding: 18px 44px; font-size: 16.5px; position: relative; transition: .2s; }
.about-subnav a:hover, .about-subnav a.on { color: var(--blue); }
.about-subnav a.on::after { content: ""; position: absolute; left: 44px; right: 44px; bottom: 0; height: 3px; background: var(--blue); }
.ab-intro { display: flex; gap: 50px; align-items: flex-start; }
.ab-intro-text { flex: 1.15; }
.ab-intro-text p { color: #555; font-size: 15.5px; margin-bottom: 16px; text-align: justify; }
.ab-intro-pic { flex: 1; overflow: hidden; }
.ab-stats { display: flex; margin-top: 50px; border: 1px solid var(--line); padding: 36px 0; }
.ab-stats .stat { flex: 1; }
.ab-str-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 46px; }
.ab-str-grid figure { overflow: hidden; background: #fff; border: 1px solid var(--line); }
.ab-str-grid img { width: 100%; height: 260px; object-fit: cover; transition: transform .4s; }
.ab-str-grid figure:hover img { transform: scale(1.05); }
.ab-str-grid figcaption { padding: 14px; text-align: center; font-size: 15.5px; font-weight: 500; }
.ab-range { background: #fff; border: 1px solid var(--line); padding: 34px 40px; }
.ab-range h3 { font-size: 22px; margin-bottom: 20px; color: var(--blue-dark); }
.ab-range ul { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 40px; }
.ab-range li { font-size: 15px; color: #555; padding-left: 16px; position: relative; }
.ab-range li::before { content: ""; position: absolute; left: 0; top: 12px; width: 7px; height: 7px; background: var(--blue); border-radius: 50%; }
.ab-range li b { color: #222; margin-right: 10px; }
.honor-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.honor-grid div {
  border: 1px solid var(--line); padding: 26px 16px; text-align: center; font-size: 15.5px; font-weight: 500;
  transition: .25s; background: #fff; position: relative;
}
.honor-grid div::before { content: "✓"; display: block; color: var(--blue); font-size: 22px; margin-bottom: 8px; }
.honor-grid div:hover { border-color: var(--blue); box-shadow: 0 10px 24px rgba(20,80,35,.12); transform: translateY(-3px); }
.zigzag { display: flex; flex-direction: column; gap: 30px; }
.zig-item { display: flex; background: #fff; border: 1px solid var(--line); overflow: hidden; }
.zig-item.rev { flex-direction: row-reverse; }
.zig-pic { flex: 0 0 50%; overflow: hidden; }
.zig-pic img { width: 100%; height: 100%; min-height: 320px; object-fit: cover; transition: transform .5s; }
.zig-item:hover .zig-pic img { transform: scale(1.04); }
.zig-body { flex: 1; padding: 48px 50px; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; }
.zig-body h3 { font-size: 28px; letter-spacing: 2px; }
.zig-body .en { color: var(--blue); font-size: 13px; letter-spacing: 3px; text-transform: uppercase; margin: 4px 0 18px; }
.zig-body p { color: #666; font-size: 15px; margin-bottom: 26px; }

/* ---------- 浮动条 ---------- */
.float-bar { position: fixed; right: 14px; bottom: 120px; z-index: 800; display: flex; flex-direction: column; gap: 8px; }
.float-bar a {
  width: 52px; height: 52px; background: var(--blue); color: #fff;
  display: flex; flex-direction: column; align-items: center; justify-content: center; font-size: 11px; transition: .25s;
}
.float-bar a svg { width: 22px; height: 22px; margin-bottom: 2px; fill: #fff; }
.float-bar a:hover { background: var(--orange); }

/* 截图/超高视口保护:正常显示器不会超过 2000px 高 */
@media (min-height: 2000px) {
  .hero { height: 900px; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1280px) {
  .arr-card { flex-basis: calc((100% - 48px) / 3); }
  .news-grid { grid-template-columns: 1fr 1fr; }
  .news-list:last-child { display: none; }
  .hero-text h2 { font-size: 40px; }
  .main-nav li > a { padding: 0 18px; }
}
@media (max-width: 1024px) {
  .header-tel { display: none; }
  .field-mods { grid-template-columns: repeat(2, 200px); }
}
@media (max-width: 768px) {
  :root { --head-h: 60px; }
  /* 手机端首页恢复常规贴顶(悬浮留边在小屏没意义) */
  .home .site-header { position: sticky; top: 0; left: 0; right: 0; }
  .home .site-header.fixed { animation: none; }
  .home .hero { height: 66vh; }
  .site-header .wrap { padding-left: 16px; }
  .site-logo img { height: 38px; }
  .site-logo .logo-text { font-size: 19px; }
  .nav-toggle { display: block; width: 60px; height: 60px; }
  .main-nav {
    position: fixed; top: 60px; left: 0; right: 0; bottom: 0; background: #fff;
    transform: translateX(100%); transition: .3s; overflow-y: auto; z-index: 890;
  }
  .main-nav.open { transform: none; }
  .main-nav ul { flex-direction: column; padding: 10px 0; }
  .main-nav li > a { line-height: 52px; border-bottom: 1px solid var(--bg-gray); padding: 0 26px; }
  .main-nav li.current > a::after { display: none; }
  .main-nav .sub { position: static; transform: none; opacity: 1; visibility: visible; box-shadow: none; background: var(--bg-gray); display: none; }
  .main-nav li.open-sub .sub { display: block; }
  .main-nav .sub a { text-align: left; padding-left: 44px; }
  .hero { height: 66vh; min-height: 380px; }
  .hero-slide .hero-text { left: 20px; right: 20px; }
  .hero-text h2 { font-size: 26px; letter-spacing: 1px; }
  .hero-text p { font-size: 14px; margin-bottom: 18px; }
  .stats .wrap { flex-wrap: wrap; padding: 34px 10px; }
  .stat { flex: 0 0 50%; margin-bottom: 18px; }
  .stat + .stat::before { display: none; }
  .stat b { font-size: 34px; }
  .stat b i { font-size: 15px; }
  .stat span { font-size: 13px; }
  .section { padding: 50px 0; }
  .wrap { padding: 0 20px; }
  .era-head { flex-direction: column; align-items: flex-start; gap: 4px; margin-bottom: 28px; }
  .era-head h2 { font-size: 26px; }
  .era-head h2 span { font-size: 13px; margin-left: 8px; }
  .field-sec { height: auto; }
  .field-pane { position: relative; inset: auto; display: none; }
  .field-pane.on { display: block; }
  .field-info { padding: 60px 20px 40px; }
  .field-info h3 { font-size: 28px; }
  .field-info .slogan { font-size: 15px; margin-bottom: 22px; }
  .field-mods { grid-template-columns: 1fr 1fr; gap: 10px; }
  .field-mods a { padding: 10px 12px; font-size: 13.5px; }
  .field-nav { position: static; flex-wrap: wrap; background: var(--blue-deep); }
  .field-nav button { flex: 0 0 33.33%; font-size: 13px; padding: 12px 4px 10px; border-top: 1px solid rgba(255,255,255,.12); }
  .field-nav button svg { width: 24px; height: 24px; }
  .arr-card { flex-basis: calc((100% - 12px) / 1.6); padding: 20px 18px 16px; }
  .arr-card .pic { height: 150px; }
  .arr-btns { display: none; }
  .news-grid { grid-template-columns: 1fr; }
  .svc-grid { grid-template-columns: 1fr; gap: 16px; }
  .svc-card { padding: 0 26px; height: 160px; }
  .footer-main { gap: 30px; padding: 40px 20px 24px; }
  .footer-col { flex: 1 1 100%; min-width: 0; }
  .footer-cta { flex: 1 1 100%; max-width: none; }
  .footer-bottom-inner { flex-direction: column; align-items: flex-start; gap: 10px; }
  .footer-bottom-links { gap: 14px; }
  .inner-flex { flex-direction: column; }
  .side-cats { width: 100%; flex: none; }
  .prod-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 12px; }
  .prod-card .pic { height: 150px; }
  .prod-top { flex-direction: column; }
  .news-row .pic { flex: 0 0 120px; height: 84px; }
  .news-row h3 { font-size: 15px; }
  .page-banner .banner-inner { padding: 52px 16px 38px; }
  .page-banner h1 { font-size: 27px; letter-spacing: 2px; }
  .page-banner .en { font-size: 11px; letter-spacing: 3px; }
  .cat-tabs { overflow-x: auto; justify-content: flex-start; position: static; }
  .cat-tabs a { padding: 13px 18px; font-size: 14.5px; }
  .cat-tabs a.on::after { left: 18px; right: 18px; }
  .cat-subtabs .wrap { gap: 8px; padding-top: 12px; padding-bottom: 12px; }
  .cat-subtabs a { padding: 6px 16px; font-size: 13.5px; }
  .lesso-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .lp-item { padding: 14px 14px 12px; }
  .lp-item .img { height: 130px; margin-bottom: 10px; }
  .lp-item .t { font-size: 15px; }
  .lp-item .p { -webkit-line-clamp: 2; font-size: 12.5px; }
  .about-subnav { overflow-x: auto; justify-content: flex-start; }
  .about-subnav a { padding: 13px 20px; font-size: 14.5px; white-space: nowrap; }
  .about-subnav a.on::after { left: 20px; right: 20px; }
  .ab-intro { flex-direction: column; gap: 24px; }
  .ab-stats { flex-wrap: wrap; padding: 20px 0 6px; }
  .ab-stats .stat { flex: 0 0 50%; margin-bottom: 14px; }
  .ab-str-grid { grid-template-columns: 1fr; }
  .ab-range { padding: 22px 18px; }
  .ab-range ul { grid-template-columns: 1fr; }
  .honor-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .honor-grid div { padding: 16px 10px; font-size: 13.5px; }
  .zig-item, .zig-item.rev { flex-direction: column; }
  .zig-pic img { min-height: 0; height: 210px; }
  .zig-body { padding: 24px 20px 28px; }
  .zig-body h3 { font-size: 22px; }
  .float-bar a { width: 44px; height: 44px; font-size: 10px; }
}