/* ====================================================================
   大连采轮及耐园林有限公司 - 全站样式
   主色：#4ba737（绿）  辅色：#F4A814（橙）  次强调：#e47821
   参考站：响应式绿色清新园林环境网站模板
   ==================================================================== */

/* ---------- Reset & Base ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: "Microsoft YaHei", "微软雅黑", Arial, Helvetica, sans-serif;
  font-size: 14px;
  line-height: 1.7;
  color: #4d4d4d;
  background: #f2f2f2 url('') top center;
  min-height: 100vh;
}
img { max-width: 100%; height: auto; border: 0; display: block; }
a { color: #4d4d4d; text-decoration: none; transition: color .25s ease; }
a:hover { color: #4ba737; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { font-weight: normal; }
.clearfix::after { content: ""; display: block; clear: both; }
.float-left { float: left; }
.float-right { float: right; }

/* ---------- Page width ---------- */
.page-width { width: 1200px; max-width: 100%; margin: 0 auto; padding: 0 15px; }

/* ====================================================================
   顶部信息栏 + 导航栏（topbox 包裹 lotbox + menubox）
   ==================================================================== */
.topbox { background: #fff; }
.lotbox {
  border-bottom: 1px solid #eee;
}
.lotbox-inner { display: flex; align-items: center; justify-content: space-between; padding: 18px 0; }
.logo { display: flex; align-items: center; gap: 14px; }
.logo-svg { width: 56px; height: 56px; flex: 0 0 auto; }
.logo-text { line-height: 1.2; }
.logo-name {
  font-size: 26px; font-weight: bold; color: #2f7a1f; letter-spacing: 1px;
}
.logo-slogan {
  font-size: 12px; color: #999; letter-spacing: 3px; margin-top: 4px;
  text-transform: uppercase;
}
.top-contact { display: flex; align-items: center; gap: 12px; }
.top-contact-icon {
  width: 46px; height: 46px; flex: 0 0 auto; color: #F4A814;
}
.top-contact-text { line-height: 1.2; text-align: right; }
.top-contact-label { font-size: 13px; color: #868686; }
.top-contact-phone { font-size: 26px; color: #F4A814; font-weight: bold; font-family: Arial; }

/* 导航栏 */
.menubox { background: #4ba737; position: relative; z-index: 50; }
.nav { display: flex; align-items: stretch; }
.nav-list { display: flex; }
.nav-item { position: relative; }
.nav-link {
  display: block; padding: 0 26px; line-height: 50px; color: #fff;
  font-size: 16px; font-weight: bold; position: relative;
}
.nav-link::after {
  content: ""; position: absolute; left: 50%; bottom: 0; width: 0; height: 3px;
  background: #F4A814; transition: all .25s ease; transform: translateX(-50%);
}
.nav-item:hover .nav-link::after, .nav-item.active .nav-link::after { width: 60%; }
.nav-item:hover .nav-link, .nav-item.active .nav-link { background: #3f9129; color: #fff; }
.nav-arrow { display: inline-block; margin-left: 5px; font-size: 11px; opacity: .8; }
/* 下拉子菜单 */
.nav-sub {
  position: absolute; top: 50px; left: 0; width: 200px; background: #fff;
  box-shadow: 0 4px 14px rgba(0,0,0,.12); opacity: 0; visibility: hidden;
  transform: translateY(10px); transition: all .25s ease; z-index: 99; border-top: 3px solid #4ba737;
}
.nav-item:hover .nav-sub { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-sub a {
  display: block; padding: 0 18px; line-height: 42px; color: #555;
  font-size: 14px; border-bottom: 1px solid #f0f0f0;
}
.nav-sub a:hover { background: #f5fbf2; color: #4ba737; padding-left: 24px; }

/* 导航栏固定（滚动后） */
.menubox.sticky { position: fixed; top: 0; left: 0; right: 0; box-shadow: 0 2px 10px rgba(0,0,0,.12); }
body.nav-sticky { padding-top: 50px; }

/* 移动端汉堡按钮 */
.nav-toggle {
  display: none; width: 50px; height: 50px; background: transparent; border: 0;
  cursor: pointer; position: absolute; top: 0; right: 0;
}
.nav-toggle span {
  display: block; width: 26px; height: 3px; background: #fff; margin: 5px auto;
  transition: all .3s ease;
}

/* ====================================================================
   Banner 轮播
   ==================================================================== */
.banner { position: relative; overflow: hidden; background: #ddd; }
.banner-list { position: relative; }
.banner-slide {
  position: absolute; top: 0; left: 0; width: 100%; opacity: 0;
  transition: opacity 1s ease-in-out;
}
.banner-slide.active { opacity: 1; position: relative; }
.banner-img { width: 100%; height: 560px; object-fit: cover; }
.banner-caption {
  position: absolute; left: 0; top: 0; width: 100%; height: 100%;
  display: flex; flex-direction: column; justify-content: center; align-items: flex-start;
  padding: 0 calc((100% - 1200px) / 2 + 30px);
  background: linear-gradient(90deg, rgba(0,0,0,.45) 0%, rgba(0,0,0,.1) 60%, rgba(0,0,0,0) 100%);
}
.banner-caption h2 {
  font-size: 46px; color: #fff; font-weight: bold; line-height: 1.3;
  text-shadow: 0 2px 8px rgba(0,0,0,.4); max-width: 640px;
}
.banner-caption p {
  font-size: 18px; color: #fff; margin-top: 16px; letter-spacing: 1px;
  text-shadow: 0 1px 6px rgba(0,0,0,.4); max-width: 560px;
}
.banner-caption .banner-btn {
  display: inline-block; margin-top: 28px; padding: 12px 34px; background: #4ba737;
  color: #fff; font-size: 15px; border-radius: 4px; border: 2px solid #4ba737;
  transition: all .3s ease;
}
.banner-caption .banner-btn:hover { background: #F4A814; border-color: #F4A814; color: #fff; }
.banner-dots {
  position: absolute; bottom: 24px; left: 0; width: 100%; text-align: center;
  z-index: 5;
}
.banner-dot {
  display: inline-block; width: 12px; height: 12px; margin: 0 5px; border-radius: 50%;
  background: rgba(255,255,255,.6); cursor: pointer; transition: all .3s ease;
  border: 2px solid transparent;
}
.banner-dot.active { background: #4ba737; border-color: #fff; width: 32px; border-radius: 6px; }

/* ====================================================================
   区块通用标题
   ==================================================================== */
.section { padding: 60px 0; }
.section-gray { background: #f6f5f5; }
.section-title { text-align: center; margin-bottom: 45px; }
.section-title h2 {
  font-size: 32px; font-weight: bold; color: #4ba737; position: relative;
  display: inline-block; padding: 0 60px;
}
.section-title h2::before, .section-title h2::after {
  content: ""; position: absolute; top: 50%; width: 44px; height: 2px;
  background: #4ba737;
}
.section-title h2::before { left: 0; }
.section-title h2::after { right: 0; }
.section-sub {
  margin-top: 14px; font-size: 14px; color: #999; font-weight: normal;
}
.section-sub i { display: inline-block; width: 8px; height: 8px; background: #4ba737; margin: 0 12px; transform: rotate(45deg); vertical-align: middle; }

/* ====================================================================
   主营业务（Tabs 切换）
   ==================================================================== */
.business { }
.tabs-nav {
  display: flex; justify-content: center; gap: 6px; margin-bottom: 40px;
  flex-wrap: wrap;
}
.tab-btn {
  padding: 12px 40px; border: 1px solid #e0e0e0; background: #fff; color: #666;
  font-size: 16px; cursor: pointer; transition: all .3s ease; position: relative;
}
.tab-btn .tab-icon {
  display: block; width: 40px; height: 40px; margin: 0 auto 6px; color: #4ba737;
}
.tab-btn:hover, .tab-btn.active { background: #4ba737; color: #fff; border-color: #4ba737; }
.tab-btn.active .tab-icon, .tab-btn:hover .tab-icon { color: #fff; }
.tab-panes { position: relative; }
.tab-pane { display: none; }
.tab-pane.active { display: block; animation: fadeIn .5s ease; }

/* ====================================================================
   产品 / 案例卡片网格
   ==================================================================== */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.product-grid.col-4 { grid-template-columns: repeat(4, 1fr); }
.product-card {
  background: #fff; overflow: hidden; box-shadow: 0 0 0 rgba(0,0,0,0);
  transition: box-shadow .3s ease, transform .3s ease;
}
.product-card:hover { box-shadow: 0 8px 24px rgba(0,0,0,.12); transform: translateY(-4px); }
.product-img {
  position: relative; overflow: hidden; aspect-ratio: 4 / 3; background: #eee;
}
.product-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.product-card:hover .product-img img { transform: scale(1.12); }
.product-overlay {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(75,167,55,.65); opacity: 0; transition: opacity .3s ease;
  display: flex; align-items: center; justify-content: center;
}
.product-card:hover .product-overlay { opacity: 1; }
.product-overlay span {
  color: #fff; font-size: 14px; border: 1px solid #fff; padding: 8px 20px;
  transform: translateY(10px); transition: transform .3s ease;
}
.product-card:hover .product-overlay span { transform: translateY(0); }
.product-name {
  padding: 16px; text-align: center; background: #fff;
}
.product-name h3 { font-size: 16px; color: #333; font-weight: bold; }
.product-name p { font-size: 13px; color: #999; margin-top: 6px; line-height: 1.5; }
.product-card:hover .product-name h3 { color: #4ba737; }

/* 更多按钮 */
.more-center { text-align: center; margin-top: 40px; }
.more-btn {
  display: inline-block; padding: 10px 40px; border: 2px solid #4ba737; color: #4ba737;
  font-size: 15px; transition: all .3s ease; background: #fff;
}
.more-btn:hover { background: #4ba737; color: #fff; }

/* ====================================================================
   关于我们
   ==================================================================== */
.about-wrap { display: flex; align-items: center; gap: 50px; flex-wrap: wrap; }
.about-img { flex: 0 0 46%; position: relative; }
.about-img img { width: 100%; border-radius: 4px; box-shadow: 0 8px 30px rgba(75,167,55,.18); }
.about-img::after {
  content: ""; position: absolute; right: -16px; bottom: -16px; width: 100%; height: 100%;
  border: 4px solid #4ba737; z-index: -1; border-radius: 4px;
}
.about-text { flex: 1; min-width: 300px; }
.about-text h3 { font-size: 26px; color: #333; font-weight: bold; margin-bottom: 8px; }
.about-text .about-sub-line {
  display: inline-block; width: 50px; height: 3px; background: #F4A814; margin-bottom: 18px;
}
.about-text p { font-size: 14px; color: #666; line-height: 2; margin-bottom: 14px; text-indent: 2em; }
.about-stats { display: flex; gap: 30px; margin: 24px 0; flex-wrap: wrap; }
.about-stat strong { font-size: 36px; color: #4ba737; font-weight: bold; font-family: Arial; display: block; }
.about-stat span { font-size: 13px; color: #999; }
.about-btn {
  display: inline-block; padding: 12px 34px; background: #4ba737; color: #fff;
  font-size: 15px; border-radius: 4px; transition: all .3s ease; margin-top: 10px;
}
.about-btn:hover { background: #3f9129; color: #fff; }

/* ====================================================================
   四大优势（交替图文）
   ==================================================================== */
.adv-list { display: flex; flex-direction: column; gap: 40px; }
.adv-item { display: flex; align-items: center; gap: 40px; background: #fff; padding: 30px; box-shadow: 0 4px 16px rgba(0,0,0,.05); border-radius: 6px; }
.adv-item.adv-reverse { flex-direction: row-reverse; }
.adv-img { flex: 0 0 42%; }
.adv-img img { width: 100%; height: 240px; object-fit: cover; border-radius: 6px; }
.adv-content { flex: 1; }
.adv-num {
  display: inline-block; width: 44px; height: 44px; line-height: 44px; text-align: center;
  background: #4ba737; color: #fff; font-size: 20px; font-weight: bold; font-family: Arial;
  margin-bottom: 14px; border-radius: 4px;
}
.adv-content h3 { font-size: 22px; color: #4ba737; font-weight: bold; margin-bottom: 12px; }
.adv-content .adv-line { border-top: 1px dashed #ddd; margin: 12px 0; }
.adv-content ul li { font-size: 14px; color: #666; line-height: 2; padding-left: 22px; position: relative; }
.adv-content ul li::before {
  content: ""; position: absolute; left: 0; top: 12px; width: 8px; height: 8px;
  background: #F4A814; transform: rotate(45deg);
}
.adv-content ul li .hl { color: #e47821; }

/* ====================================================================
   工程案例（灰底 Tabs + 4 列网格）
   ==================================================================== */
.case-card { background: #fff; }
.case-card .product-name { padding: 14px; }

/* ====================================================================
   FAQ + 新闻（1/3 + 2/3 双栏）
   ==================================================================== */
.info-cols { display: grid; grid-template-columns: 1fr 2fr; gap: 30px; }
.col-block { background: #fff; padding: 24px; }
.block-head { display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid #eee; padding-bottom: 14px; margin-bottom: 16px; }
.block-head h3 { font-size: 20px; color: #333; font-weight: bold; }
.block-head h3 span { font-size: 14px; color: #bbb; font-weight: normal; }
.block-head .block-more { font-size: 13px; color: #999; }

/* FAQ 滚动列表 */
.faq-list { max-height: 380px; overflow: hidden; position: relative; }
.faq-item { padding: 10px 0; border-bottom: 1px dashed #eee; }
.faq-item:last-child { border-bottom: 0; }
.faq-title { font-size: 14px; color: #333; font-weight: bold; line-height: 1.6; display: flex; align-items: flex-start; gap: 8px; }
.faq-title::before { content: "Q"; flex: 0 0 18px; width: 18px; height: 18px; line-height: 18px; text-align: center; background: #4ba737; color: #fff; font-size: 12px; border-radius: 3px; }
.faq-info { font-size: 13px; color: #999; line-height: 1.7; margin-top: 6px; padding-left: 26px; }

/* 新闻列表（2列带日期） */
.news-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.news-item {
  display: flex; gap: 16px; padding: 14px; background: #fafafa; transition: all .3s ease;
  border-bottom: 2px solid transparent;
}
.news-item:hover { background: #fff; box-shadow: 0 4px 14px rgba(0,0,0,.08); border-bottom-color: #4ba737; }
.news-time { flex: 0 0 64px; text-align: center; background: #f0f0f0; padding: 8px 0; border-radius: 4px; }
.news-day { font-size: 26px; color: #4ba737; font-weight: bold; font-family: Arial; line-height: 1; }
.news-date { font-size: 12px; color: #999; margin-top: 4px; }
.news-body { flex: 1; min-width: 0; }
.news-title { font-size: 15px; color: #333; font-weight: bold; line-height: 1.5; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.news-item:hover .news-title { color: #4ba737; }
.news-summary { font-size: 12px; color: #999; line-height: 1.6; margin-top: 6px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ====================================================================
   合作伙伴
   ==================================================================== */
.partner-grid { display: grid; grid-template-columns: repeat(8, 1fr); gap: 20px; }
.partner-item {
  height: 80px; display: flex; align-items: center; justify-content: center;
  background: #fff; border: 1px solid #eee; transition: all .3s ease; color: #888;
  font-size: 14px; font-weight: bold; text-align: center; padding: 0 8px;
}
.partner-item:hover { border-color: #4ba737; color: #4ba737; box-shadow: 0 4px 12px rgba(75,167,55,.15); }

/* ====================================================================
   页脚
   ==================================================================== */
.footer { background: #2e7d22; color: #d6efce; padding: 50px 0 0; }
.footer a { color: #d6efce; }
.footer a:hover { color: #fff; }
.footer-main { display: grid; grid-template-columns: 1.7fr 1fr 1fr 1.3fr; gap: 36px; padding-bottom: 36px; }
.footer-col h4 { font-size: 16px; color: #fff; font-weight: bold; margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer-col h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 30px; height: 2px; background: #F4A814; }
.footer-col ul li { margin-bottom: 10px; font-size: 13px; }
.footer-col ul li a::before { content: "›  "; color: #F4A814; }
.footer-about p { font-size: 13px; line-height: 1.9; color: #c8e6ba; }
.footer-contact-line { display: flex; gap: 10px; margin-bottom: 14px; font-size: 13px; line-height: 1.6; }
.footer-contact-line svg { flex: 0 0 18px; width: 18px; height: 18px; color: #F4A814; margin-top: 2px; }
.footer-phone-big { font-size: 22px; color: #F4A814; font-weight: bold; font-family: Arial; margin: 6px 0 14px; }
.footer-qr { text-align: center; }
.footer-qr img { width: 97px; height: 97px; background: #fff; padding: 4px; }
.footer-qr p { font-size: 12px; color: #c8e6ba; margin-top: 6px; }

.footer-bottom { border-top: 1px solid rgba(255,255,255,.15); padding: 18px 0; text-align: center; font-size: 13px; color: #b5d8a8; }
.footer-bottom .beian-link { color: #b5d8a8; }
.footer-bottom .beian-link:hover { color: #fff; }
.footer-bottom p { margin: 3px 0; }

/* 悬浮快捷栏 */
.quick-bar {
  position: fixed; right: 16px; bottom: 100px; z-index: 80; display: flex; flex-direction: column; gap: 6px;
}
.quick-bar-item {
  width: 52px; height: 52px; background: #4ba737; color: #fff; display: flex;
  flex-direction: column; align-items: center; justify-content: center; font-size: 11px; gap: 2px;
  border-radius: 4px; transition: all .3s ease; cursor: pointer;
}
.quick-bar-item:hover { background: #3f9129; transform: translateX(-4px); }
.quick-bar-item svg { width: 20px; height: 20px; }

/* 返回顶部 */
.gotop {
  position: fixed; right: 16px; bottom: 30px; width: 52px; height: 52px;
  background: #F4A814; color: #fff; display: flex; align-items: center; justify-content: center;
  border-radius: 4px; cursor: pointer; opacity: 0; visibility: hidden;
  transition: all .3s ease; z-index: 80;
}
.gotop.show { opacity: 1; visibility: visible; }
.gotop:hover { background: #e47821; }
.gotop svg { width: 24px; height: 24px; }

/* ====================================================================
   内页 Banner + 面包屑
   ==================================================================== */
.n-banner { position: relative; height: 320px; overflow: hidden; background: #333; }
.n-banner img { width: 100%; height: 100%; object-fit: cover; }
.n-banner .n-banner-mask { position: absolute; inset: 0; background: rgba(0,0,0,.35); }
.n-banner .n-banner-text {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  justify-content: center; align-items: center; color: #fff; text-align: center;
}
.n-banner h2 { font-size: 38px; font-weight: bold; text-shadow: 0 2px 8px rgba(0,0,0,.4); }
.n-banner p { font-size: 15px; margin-top: 10px; letter-spacing: 2px; opacity: .9; }

.ntit { background: #f6f5f5; border-bottom: 1px solid #eee; }
.ntt { display: flex; align-items: center; justify-content: space-between; padding: 22px 0; }
.ntt-left h1 { font-size: 24px; color: #333; font-weight: bold; }
.ntt-left i { display: block; font-size: 13px; color: #bbb; font-style: normal; letter-spacing: 2px; margin-top: 4px; }
.weiz { font-size: 13px; color: #999; }
.weiz a { color: #999; }
.weiz a:hover { color: #4ba737; }
.weiz .sep { margin: 0 6px; color: #ccc; }
.weiz .cur { color: #4ba737; }

/* ====================================================================
   内页通用布局
   ==================================================================== */
.page-content { padding: 50px 0; }
.detail { display: grid; grid-template-columns: 1fr 300px; gap: 36px; }
.detail-main { background: #fff; padding: 30px; min-width: 0; }
.detail-aside { }
.aside-block { background: #fff; padding: 20px; margin-bottom: 24px; }
.aside-title { font-size: 18px; color: #333; font-weight: bold; border-bottom: 2px solid #4ba737; padding-bottom: 12px; margin-bottom: 14px; }
.aside-list li { border-bottom: 1px dashed #eee; }
.aside-list li a { display: flex; gap: 10px; padding: 12px 0; font-size: 13px; color: #666; }
.aside-list li a:hover { color: #4ba737; }
.aside-list .aside-thumb { flex: 0 0 70px; width: 70px; height: 54px; object-fit: cover; }
.aside-list .aside-text { flex: 1; min-width: 0; }
.aside-list .aside-text strong { display: block; font-weight: normal; color: #333; line-height: 1.5; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.aside-list .aside-text span { font-size: 12px; color: #aaa; }

/* 联系信息侧栏 */
.contact-cards .cc-item { display: flex; gap: 12px; align-items: flex-start; padding: 14px 0; border-bottom: 1px dashed #eee; }
.contact-cards .cc-item:last-child { border-bottom: 0; }
.contact-cards .cc-icon { flex: 0 0 36px; width: 36px; height: 36px; line-height: 36px; text-align: center; background: #4ba737; color: #fff; border-radius: 50%; }
.contact-cards .cc-icon svg { width: 18px; height: 18px; vertical-align: middle; }
.contact-cards .cc-info p:first-child { font-size: 13px; color: #999; }
.contact-cards .cc-info p:last-child { font-size: 15px; color: #333; font-weight: bold; }

/* ====================================================================
   产品详情页
   ==================================================================== */
.pd-top { display: flex; gap: 36px; padding-bottom: 30px; border-bottom: 1px solid #eee; }
.pd-gallery { flex: 0 0 44%; }
.pd-gallery img { width: 100%; border: 1px solid #eee; }
.pd-info { flex: 1; min-width: 0; }
.pd-info h1 { font-size: 26px; color: #333; font-weight: bold; margin-bottom: 14px; }
.pd-info .pd-snip { font-size: 14px; color: #666; line-height: 1.9; margin-bottom: 18px; }
.params-table { width: 100%; border-collapse: collapse; margin-bottom: 20px; }
.params-table th, .params-table td { border: 1px solid #eee; padding: 10px 14px; font-size: 13px; text-align: left; }
.params-table th { background: #f6f5f5; color: #555; width: 130px; font-weight: normal; }
.pd-contact-btn { display: inline-block; padding: 12px 36px; background: #F4A814; color: #fff; font-size: 15px; border-radius: 4px; }
.pd-contact-btn:hover { background: #e47821; color: #fff; }
.pd-contact-btn + .pd-contact-btn { background: #4ba737; }
.pd-contact-btn + .pd-contact-btn:hover { background: #3f9129; }

.pd-section { margin-top: 34px; }
.pd-section-title { font-size: 20px; color: #333; font-weight: bold; border-left: 4px solid #4ba737; padding-left: 12px; margin-bottom: 18px; }
.pd-desc p { font-size: 14px; color: #666; line-height: 2; margin-bottom: 14px; text-indent: 2em; }
.pd-desc img { margin: 16px auto; max-width: 100%; }

.features { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.feature-item { display: flex; gap: 14px; align-items: flex-start; background: #f9fbf8; padding: 18px; border-radius: 6px; border-left: 3px solid #4ba737; }
.feature-icon { flex: 0 0 40px; width: 40px; height: 40px; line-height: 40px; text-align: center; background: #4ba737; color: #fff; border-radius: 50%; font-size: 18px; }
.feature-text strong { display: block; font-size: 15px; color: #333; margin-bottom: 4px; }
.feature-text span { font-size: 13px; color: #888; line-height: 1.6; }

.related { margin-top: 34px; }
.related .product-grid { grid-template-columns: repeat(4, 1fr); gap: 20px; }

/* ====================================================================
   新闻详情 / 文章
   ==================================================================== */
.article { }
.article-head { text-align: center; padding-bottom: 20px; border-bottom: 1px solid #eee; margin-bottom: 24px; }
.article-head h1 { font-size: 26px; color: #333; font-weight: bold; line-height: 1.5; margin-bottom: 14px; }
.article-meta { font-size: 13px; color: #999; }
.article-meta span { margin: 0 10px; }
.article-meta span::before { content: ""; }
.article-body p { font-size: 15px; color: #555; line-height: 2.1; margin-bottom: 18px; text-indent: 2em; }
.article-body h3 { font-size: 18px; color: #333; font-weight: bold; margin: 24px 0 12px; border-left: 4px solid #4ba737; padding-left: 12px; }
.article-body img { margin: 20px auto; max-width: 100%; border-radius: 4px; }

.prev-next { display: flex; justify-content: space-between; gap: 16px; margin-top: 30px; padding-top: 20px; border-top: 1px solid #eee; flex-wrap: wrap; }
.pn-link { flex: 1; min-width: 200px; font-size: 14px; color: #666; padding: 12px; background: #f9fbf8; border-radius: 4px; transition: all .3s ease; }
.pn-link:hover { background: #4ba737; color: #fff; }
.pn-link span { display: block; font-size: 12px; opacity: .7; margin-bottom: 4px; }

/* ====================================================================
   关于我们页 - 发展历程 / 企业文化 / 团队
   ==================================================================== */
.about-detail p { font-size: 15px; color: #555; line-height: 2.1; margin-bottom: 16px; text-indent: 2em; }

.timeline { position: relative; padding: 20px 0 20px 30px; margin: 30px 0; }
.timeline::before { content: ""; position: absolute; left: 8px; top: 0; bottom: 0; width: 2px; background: #4ba737; }
.tl-item { position: relative; padding: 0 0 28px 30px; }
.tl-item::before { content: ""; position: absolute; left: -27px; top: 4px; width: 14px; height: 14px; background: #fff; border: 3px solid #4ba737; border-radius: 50%; }
.tl-year { font-size: 22px; color: #4ba737; font-weight: bold; font-family: Arial; margin-bottom: 6px; }
.tl-content h4 { font-size: 16px; color: #333; font-weight: bold; margin-bottom: 6px; }
.tl-content p { font-size: 14px; color: #777; line-height: 1.8; }

.culture-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; margin: 30px 0; }
.culture-card { background: #fff; padding: 36px 24px; text-align: center; border-radius: 6px; box-shadow: 0 4px 16px rgba(0,0,0,.05); transition: transform .3s ease; border-top: 4px solid #4ba737; }
.culture-card:hover { transform: translateY(-6px); }
.culture-icon { width: 64px; height: 64px; line-height: 64px; margin: 0 auto 18px; background: #eaf6e5; color: #4ba737; border-radius: 50%; font-size: 28px; }
.culture-card h3 { font-size: 20px; color: #333; font-weight: bold; margin-bottom: 12px; }
.culture-card p { font-size: 14px; color: #888; line-height: 1.8; }

.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; margin: 30px 0; }
.team-card { background: #fff; text-align: center; border-radius: 6px; overflow: hidden; box-shadow: 0 4px 16px rgba(0,0,0,.05); transition: transform .3s ease; }
.team-card:hover { transform: translateY(-6px); }
.team-avatar { width: 100%; aspect-ratio: 1; object-fit: cover; }
.team-info { padding: 18px; }
.team-info h4 { font-size: 18px; color: #333; font-weight: bold; }
.team-info span { display: block; font-size: 13px; color: #4ba737; margin-top: 6px; }

/* ====================================================================
   联系我们 - 表单
   ==================================================================== */
.contact-wrap { display: grid; grid-template-columns: 1fr 1.2fr; gap: 36px; }
.contact-info-box { background: #fff; padding: 30px; border-radius: 6px; }
.contact-info-box .ci-item { display: flex; gap: 16px; align-items: flex-start; padding: 18px 0; border-bottom: 1px dashed #eee; }
.contact-info-box .ci-item:last-child { border-bottom: 0; }
.ci-icon { flex: 0 0 52px; width: 52px; height: 52px; line-height: 52px; text-align: center; background: #4ba737; color: #fff; border-radius: 50%; }
.ci-icon svg { width: 24px; height: 24px; vertical-align: middle; }
.ci-info p:first-child { font-size: 13px; color: #999; }
.ci-info p:last-child { font-size: 16px; color: #333; font-weight: bold; }

.contact-form-box { background: #fff; padding: 30px; border-radius: 6px; }
.contact-form-box h3 { font-size: 22px; color: #333; font-weight: bold; margin-bottom: 22px; padding-bottom: 14px; border-bottom: 2px solid #4ba737; }
.form-row { margin-bottom: 18px; }
.form-row.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-label { display: block; font-size: 14px; color: #555; margin-bottom: 8px; }
.form-input, .form-textarea {
  width: 100%; padding: 12px 14px; border: 1px solid #e0e0e0; font-size: 14px;
  font-family: inherit; background: #fafafa; transition: all .3s ease; border-radius: 4px;
}
.form-input:focus, .form-textarea:focus { outline: 0; border-color: #4ba737; background: #fff; box-shadow: 0 0 0 3px rgba(75,167,55,.1); }
.form-textarea { min-height: 120px; resize: vertical; }
.form-submit {
  display: inline-block; padding: 14px 50px; background: #4ba737; color: #fff; border: 0;
  font-size: 16px; cursor: pointer; border-radius: 4px; transition: all .3s ease; font-family: inherit;
}
.form-submit:hover { background: #3f9129; }

/* 地图占位 */
.map-box { margin-top: 36px; background: #fff; padding: 20px; border-radius: 6px; }
.map-box h3 { font-size: 18px; color: #333; font-weight: bold; margin-bottom: 14px; }
.map-placeholder {
  width: 100%; height: 340px; background: linear-gradient(135deg, #eaf6e5, #f5fbf2);
  display: flex; align-items: center; justify-content: center; color: #4ba737;
  font-size: 16px; border-radius: 4px; border: 1px solid #eee;
}

/* ====================================================================
   图片兜底 & 动画
   ==================================================================== */
.img-fallback { background: linear-gradient(135deg, #4ba737, #F4A814); display: flex; align-items: center; justify-content: center; width: 100%; height: 100%; min-height: 200px; color: #fff; font-size: 14px; border-radius: 8px; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
.fade-up { opacity: 0; }
.fade-up.in { animation: fadeUp .8s ease forwards; }

/* ====================================================================
   响应式
   ==================================================================== */
@media (max-width: 1200px) {
  .page-width { width: 100%; padding: 0 20px; }
  .banner-caption { padding: 0 40px; }
  .banner-caption h2 { font-size: 36px; }
}
@media (max-width: 1024px) {
  .product-grid.col-4 { grid-template-columns: repeat(3, 1fr); }
  .partner-grid { grid-template-columns: repeat(4, 1fr); }
  .detail { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: repeat(3, 1fr); }
  .team-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 992px) {
  .info-cols { grid-template-columns: 1fr; }
  .about-wrap { gap: 30px; }
  .about-img { flex: 0 0 100%; }
  .culture-grid { grid-template-columns: 1fr; }
  .contact-wrap { grid-template-columns: 1fr; }
  .pd-top { flex-direction: column; }
  .pd-gallery { flex: 0 0 100%; }
}
@media (max-width: 768px) {
  .lotbox-inner { padding: 12px 0; }
  .logo-name { font-size: 20px; }
  .logo-slogan { font-size: 10px; letter-spacing: 1px; }
  .top-contact-icon { width: 34px; height: 34px; }
  .top-contact-phone { font-size: 18px; }
  .top-contact-label { font-size: 11px; }

  /* 移动端导航 */
  .nav-toggle { display: block; }
  .nav-list {
    position: fixed; top: 50px; right: -100%; width: 75%; max-width: 320px; height: calc(100vh - 50px);
    background: #fff; flex-direction: column; align-items: stretch; overflow-y: auto;
    transition: right .3s ease; z-index: 999; box-shadow: -4px 0 16px rgba(0,0,0,.15);
  }
  .nav-list.open { right: 0; }
  .nav-item { border-bottom: 1px solid #eee; }
  .nav-link { color: #333; padding: 0 20px; line-height: 48px; font-size: 15px; }
  .nav-item:hover .nav-link, .nav-item.active .nav-link { background: #f5fbf2; color: #4ba737; }
  .nav-item.active .nav-link::after, .nav-link::after { display: none; }
  .nav-sub { position: static; width: 100%; opacity: 1; visibility: visible; transform: none; box-shadow: none; border-top: 0; background: #f9fbf8; display: none; }
  .nav-item.open > .nav-sub { display: block; }
  .nav-sub a { line-height: 40px; padding-left: 36px; }
  body.nav-overlay::before { content: ""; position: fixed; inset: 0; background: rgba(0,0,0,.4); z-index: 998; }

  .banner-img { height: 320px; }
  .banner-caption { padding: 0 24px; align-items: center; text-align: center; background: linear-gradient(180deg, rgba(0,0,0,.2), rgba(0,0,0,.5)); }
  .banner-caption h2 { font-size: 26px; }
  .banner-caption p { font-size: 14px; }

  .section { padding: 40px 0; }
  .section-title h2 { font-size: 26px; padding: 0; }
  .section-title h2::before, .section-title h2::after { display: none; }

  .product-grid, .product-grid.col-4, .related .product-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .news-list { grid-template-columns: 1fr; }
  .partner-grid { grid-template-columns: repeat(2, 1fr); }
  .adv-item, .adv-item.adv-reverse { flex-direction: column; gap: 16px; padding: 20px; }
  .adv-img { flex: 0 0 100%; width: 100%; }
  .adv-img img { height: 200px; }

  .footer-main { grid-template-columns: 1fr 1fr; gap: 24px; }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .features { grid-template-columns: 1fr; }
  .form-row.row-2 { grid-template-columns: 1fr; }

  .n-banner { height: 220px; }
  .n-banner h2 { font-size: 28px; }
  .ntt { flex-direction: column; align-items: flex-start; gap: 8px; }
  .detail-main { padding: 20px; }
}
@media (max-width: 480px) {
  .product-grid, .product-grid.col-4 { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr 1fr; }
  .about-stats { gap: 18px; }
  .prev-next { flex-direction: column; }
}