@charset "utf-8";
/* CSS Document - 青岛坚联润建材有限公司 */
/* ============================================
   参考站配色: 主色 #67b306 绿色, 导航 #313131 深色
   ============================================ */

/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; }
body, p, form, textarea, h1, h2, h3, h4, h5, dl, dd { margin: 0; }
input, button, ul, ol { margin: 0; padding: 0; }
body, input, button, form {
  font-size: 14px;
  line-height: 28px;
  font-family: "microsoft yahei", "Arial", sans-serif;
  color: #333333;
}
h1, h2, h3, h4, h5, h6, font { font-size: 14px; font-weight: normal; }
ul, ol, li { list-style: none; }
input { background: none; border: 0 none; }
img, iframe { border: 0; max-width: 100%; }
em, i { font-style: normal; }
button, input, select, textarea { font-size: 100%; }
table { border-collapse: collapse; border-spacing: 0; }
a { color: #333; text-decoration: none; transition: all ease 300ms; }
a:hover { color: #67b306; text-decoration: none; }
a:visited { text-decoration: none; }

/* === Utility Classes === */
.red { color: #ba292e; }
.fl { float: left; }
.fr { float: right; }
.tac { text-align: center; }
.tar { text-align: right; }
.poa { position: absolute; }
.por { position: relative; }
.hidden { display: none; }
.clearfix { *zoom: 1; }
.clearfix:after { visibility: hidden; display: block; font-size: 0; content: " "; clear: both; height: 0; }
.w1200 { width: 1220px; margin: 0 auto; }
.img-fallback { background: linear-gradient(135deg, #67b306, #528e06); display: flex; align-items: center; justify-content: center; width: 100%; height: 100%; min-height: 200px; color: #fff; font-size: 14px; border-radius: 8px; }

/* === Animation === */
.ease, .ease * { transition: all ease 300ms; }
.fade-in { opacity: 0; transform: translateY(30px); transition: opacity 0.8s ease, transform 0.8s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }
.fade-in-left { opacity: 0; transform: translateX(-30px); transition: opacity 0.8s ease, transform 0.8s ease; }
.fade-in-left.visible { opacity: 1; transform: translateX(0); }
.fade-in-right { opacity: 0; transform: translateX(30px); transition: opacity 0.8s ease, transform 0.8s ease; }
.fade-in-right.visible { opacity: 1; transform: translateX(0); }

/* === Top Info Bar === */
.top-main {
  width: 100%;
  height: 30px;
  line-height: 30px;
  background-color: #f5f5f5;
  color: #999;
  font-size: 12px;
}
.top-main .top-inner { display: flex; justify-content: space-between; align-items: center; }
.top-main .top-left { color: #999; }
.top-main .top-right { display: flex; align-items: center; gap: 8px; }
.top-main .top-right a { color: #999; font-size: 12px; }
.top-main .top-right a:hover { color: #67b306; }
.top-main .top-right .split { display: inline-block; width: 1px; height: 10px; background: #999; }

/* === Header === */
.header-main {
  width: 100%;
  height: 110px;
  padding-top: 20px;
  background: #fff;
}
.header-main .header { display: flex; justify-content: space-between; align-items: center; }
.header-main .logo { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.header-main .logo .logo-icon { width: 65px; height: 65px; flex-shrink: 0; }
.header-main .logo .logo-text { display: flex; flex-direction: column; }
.header-main .logo .logo-text .brand-name { font-size: 24px; font-weight: bold; color: #333; line-height: 1.2; letter-spacing: 2px; }
.header-main .logo .logo-text .brand-slogan { font-size: 12px; color: #999; letter-spacing: 4px; margin-top: 4px; }
.header-main .tel-box { display: flex; align-items: center; gap: 12px; }
.header-main .tel-box .tel-icon { width: 50px; height: 50px; display: flex; align-items: center; justify-content: center; }
.header-main .tel-box .tel-text { text-align: right; }
.header-main .tel-box .tel-text span { display: block; color: #999; font-size: 14px; line-height: 16px; }
.header-main .tel-box .tel-text strong { display: block; font-weight: normal; font-size: 28px; color: #67b306; letter-spacing: 1px; white-space: nowrap; }

/* === Navigation === */
.nav-main {
  height: 45px;
  line-height: 45px;
  background: #313131;
  position: relative;
  z-index: 111;
}
.nav-main .nav-inner { display: flex; justify-content: center; }
.nav-main .nav-list { display: flex; list-style: none; margin: 0; padding: 0; }
.nav-main .nav-item {
  height: 45px;
  line-height: 45px;
  text-align: center;
  position: relative;
  float: left;
  width: 140px;
}
.nav-main .nav-item .nav-link {
  display: block;
  font-size: 16px;
  color: #fff;
  transition: background 300ms;
}
.nav-main .nav-item:hover .nav-link,
.nav-main .nav-item.active .nav-link {
  background: #67b306;
}
.nav-main .sub-nav {
  position: absolute;
  left: 0;
  top: 45px;
  width: 100%;
  background: #313131;
  z-index: 199;
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s ease;
  transform: translate3d(0, 10px, 0);
}
.nav-main .nav-item:hover .sub-nav {
  opacity: 1;
  visibility: visible;
  transform: translate3d(0, 0, 0);
}
.nav-main .sub-nav a {
  display: block;
  color: #fff;
  line-height: 45px;
  height: 45px;
  font-size: 14px;
  border-bottom: 1px solid rgba(170,170,170,0.2);
  transition: background 300ms;
}
.nav-main .sub-nav a:hover { background: #67b306; }

/* Mobile menu button */
.mobile-menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
}
.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: #333;
  transition: all 0.3s;
}

/* === Banner Carousel === */
.banner {
  width: 100%;
  min-width: 1000px;
  position: relative;
  overflow: hidden;
  z-index: 20;
}
.banner .banner-list { position: relative; height: 600px; margin: 0; padding: 0; }
.banner .banner-item {
  width: 100%;
  height: 600px;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  overflow: hidden;
  opacity: 0;
  transition: opacity 1s ease;
}
.banner .banner-item.active { opacity: 1; z-index: 2; }
.banner .banner-item img {
  width: 1920px;
  height: 600px;
  display: block;
  position: absolute;
  left: 50%;
  margin-left: -960px;
  top: 0;
  object-fit: cover;
}
.banner .banner-dots {
  width: 100%;
  text-align: center;
  position: absolute;
  left: 0;
  bottom: 24px;
  z-index: 10;
}
.banner .banner-dots .dot {
  width: 6px;
  height: 6px;
  margin: 0 9px;
  border: 2px solid #67b306;
  display: inline-block;
  cursor: pointer;
  border-radius: 100%;
  background: transparent;
  transition: background 300ms;
}
.banner .banner-dots .dot.active { background: #67b306; }
.banner .banner-prev,
.banner .banner-next {
  width: 50px;
  height: 70px;
  position: absolute;
  z-index: 12;
  top: 50%;
  margin-top: -35px;
  cursor: pointer;
  font-size: 30px;
  color: #fff;
  background: rgba(0,0,0,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 300ms;
}
.banner .banner-prev:hover,
.banner .banner-next:hover { background: rgba(103,179,6,0.7); }
.banner .banner-prev { left: 3%; }
.banner .banner-next { right: 3%; }

/* === Search Bar === */
.search-main {
  width: 100%;
  height: 65px;
  line-height: 65px;
  background: #fff;
  font-size: 12px;
}
.search-main .search-inner { display: flex; justify-content: space-between; align-items: center; }
.search-main .hot-keys span { color: #67b306; font-weight: bold; }
.search-main .hot-keys a { margin-right: 20px; color: #666; }
.search-main .hot-keys a:hover { color: #67b306; }
.search-main .search-form {
  width: 256px;
  height: 36px;
  border: 1px solid #67b306;
  position: relative;
}
.search-main .search-form input {
  border: 0;
  display: block;
  outline: none;
  background: #fff;
  height: 36px;
  line-height: 36px;
  color: #666;
}
.search-main .search-form .search-text {
  width: 190px;
  padding-left: 12px;
}
.search-main .search-form .search-btn {
  width: 60px;
  height: 36px;
  position: absolute;
  top: 0;
  right: 0;
  cursor: pointer;
  background: #67b306;
  color: #fff;
  font-size: 14px;
}

/* === Product Categories Section (iservice) === */
.iservice {
  width: 100%;
  padding: 60px 0;
  background: #f9f9f9;
}
.iservice .iservice-list {
  display: flex;
  justify-content: center;
  gap: 30px;
}
.iservice .iservice-item {
  display: flex;
  align-items: center;
  padding: 20px 30px;
  transition: margin-top 300ms;
  width: 380px;
}
.iservice .iservice-item:hover { margin-top: -5px; }
.iservice .iservice-item .item-icon {
  width: 80px;
  height: 80px;
  flex-shrink: 0;
  margin-right: 20px;
}
.iservice .iservice-item h3 {
  color: #67b306;
  font-size: 24px;
  font-weight: bold;
  padding-bottom: 8px;
}
.iservice .iservice-item span {
  display: block;
  color: #999;
  font-size: 16px;
}

/* === Case Section (icase) === */
.icase { padding-bottom: 45px; }
.icase .section-title {
  padding: 45px 0;
  text-align: center;
  font-weight: bold;
  color: #000;
  font-size: 36px;
}
.icase .section-title span { color: #67b306; }
.icase .tab-nav { text-align: center; padding-bottom: 50px; }
.icase .tab-nav a {
  padding: 0 16px;
  height: 40px;
  line-height: 40px;
  background: #333;
  font-size: 18px;
  display: inline-block;
  margin: 0 20px;
  color: #fff;
  transition: background 300ms;
}
.icase .tab-nav a:hover { background: #67b306; }
.icase .case-grid { overflow: hidden; }

/* === Grid List (shared card style) === */
.gridlist { width: 100%; overflow: hidden; }
.gridlist .grid-item {
  width: 280px;
  margin: 30px 26px 0 0;
  float: left;
  position: relative;
  overflow: hidden;
}
.gridlist .grid-item img {
  width: 280px;
  height: 210px;
  display: block;
  object-fit: cover;
  transition: all ease 300ms;
}
.gridlist .grid-item .item-overlay {
  width: 280px;
  height: 210px;
  display: block;
  background: rgba(0,0,0,0.6);
  position: absolute;
  left: -100%;
  top: 0;
  transition: all ease 300ms;
}
.gridlist .grid-item .item-plus {
  width: 280px;
  height: 210px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: absolute;
  left: -100%;
  top: 0;
  transition: all ease 0.4s;
  color: #fff;
  font-size: 36px;
}
.gridlist .grid-item h3 {
  color: #000;
  line-height: 28px;
  text-align: center;
  padding-top: 8px;
  height: 36px;
  overflow: hidden;
  font-size: 14px;
}
.gridlist .grid-item:hover .item-overlay { left: 0; }
.gridlist .grid-item:hover .item-plus { left: 0; }
.gridlist .grid-item:hover img { filter: brightness(110%); }
.gridlist .grid-item:hover h3 { color: #67b306; }

/* Case grid special */
.icase .case-grid .gridlist { width: 110%; }
.icase .case-grid .grid-item .item-plus { height: 82%; }
.icase .case-grid .grid-item .case-title {
  width: 100%;
  position: absolute;
  left: -100%;
  bottom: 55px;
  transition: all ease 300ms;
  font-size: 16px;
  color: #fff;
  text-align: center;
  height: 40px;
  line-height: 40px;
  overflow: hidden;
}
.icase .case-grid .grid-item:hover .case-title { left: 0; }

/* === Mini Banner (ixbanner) === */
.ixbanner {
  width: 100%;
  height: 180px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #313131 0%, #555 100%);
}
.ixbanner .ixbanner-inner { display: flex; justify-content: flex-end; align-items: center; height: 100%; gap: 20px; }
.ixbanner .ixbanner-tel { text-align: right; color: #fff; }
.ixbanner .ixbanner-tel span { font-size: 14px; display: block; }
.ixbanner .ixbanner-tel strong { font-size: 27px; line-height: 28px; }
.ixbanner .ixbanner-btn {
  width: 140px;
  height: 36px;
  line-height: 36px;
  border: 2px solid #fff;
  text-align: center;
  color: #67b306;
  display: block;
  background: #fff;
  transition: all 300ms;
  text-decoration: none;
}
.ixbanner .ixbanner-btn:hover { background: transparent; color: #fff; }

/* === Product Section (iproduct) === */
.iproduct {
  width: 100%;
  padding: 74px 0;
  background: #f5f5f5;
}
.iproduct .iproduct-inner { display: flex; gap: 30px; }
.iproduct .ipro-nav {
  width: 278px;
  flex-shrink: 0;
  position: relative;
  padding-top: 90px;
  background: #fff;
  border: 1px solid #dcdcdc;
  border-bottom: 4px solid #67b306;
  min-height: 475px;
}
.iproduct .ipro-nav .nav-title {
  width: 100%;
  height: 80px;
  line-height: 80px;
  position: absolute;
  left: 0;
  top: 0;
  text-align: center;
  background: #67b306;
  color: #fff;
  font-size: 30px;
  font-weight: bold;
}
.iproduct .ipro-nav .nav-item { margin: 0 5%; padding: 12px 0; }
.iproduct .ipro-nav .nav-item a {
  display: block;
  transition: all 300ms;
}
.iproduct .ipro-nav .nav-item h3 { font-size: 18px; font-weight: bold; color: #67b306; padding-left: 15px; position: relative; }
.iproduct .ipro-nav .nav-item h3::before {
  content: '';
  display: inline-block;
  vertical-align: middle;
  margin-right: 10px;
  border-style: dashed dashed dashed solid;
  border-color: transparent transparent transparent #67b306;
  border-width: 4px;
  width: 0;
  height: 0;
  position: absolute;
  left: 0;
  top: 50%;
  margin-top: -4px;
}
.iproduct .ipro-nav .nav-item:hover h3 { color: #313131; }
.iproduct .ipro-nav .pro-contact {
  position: relative;
  top: auto;
  padding: 25px 0 10px 30px;
  border-top: 1px dashed #eee;
}
.iproduct .ipro-nav .pro-contact .contact-title {
  font-size: 24px;
  color: #67b306;
  font-weight: bold;
  margin-bottom: 12px;
}
.iproduct .ipro-nav .pro-contact .contact-subtitle { font-weight: bold; color: #333; }
.iproduct .ipro-nav .pro-contact .contact-info { line-height: 24px; color: #333; font-size: 14px; padding: 5px 0 15px; }

.iproduct .ipro-list { flex: 1; overflow: hidden; }
.iproduct .ipro-list .list-header {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 10px;
  border-bottom: 2px solid #67b306;
  margin-bottom: 10px;
}
.iproduct .ipro-list .list-header h3 { color: #000; font-size: 18px; font-weight: bold; }
.iproduct .ipro-list .list-header .more-link { color: #67b306; }
.iproduct .ipro-list .list-header .more-link:hover { text-decoration: underline; }
.iproduct .ipro-list .gridlist { width: 120%; }

/* === Service Section (iservice2) === */
.iservice2 {
  text-align: center;
  padding: 40px 0 70px;
  background: #fff;
}
.iservice2 .section-title {
  font-weight: bold;
  font-size: 36px;
  line-height: 36px;
  display: block;
  margin-bottom: 25px;
  color: #000;
}
.iservice2 .section-title span { color: #67b306; }
.iservice2 .section-title:hover { color: #67b306; }
.iservice2 .service-img { max-width: 100%; display: block; margin: 0 auto 30px; }
.iservice2 .service-btn {
  width: 208px;
  height: 55px;
  line-height: 55px;
  margin: 0 auto;
  font-size: 24px;
  display: block;
  color: #fff;
  text-align: center;
  background: #67b306;
  text-decoration: none;
}
.iservice2 .service-btn:hover { background: #333; }

/* === About Section (iabout) === */
.iabout {
  padding: 60px 0 70px;
  background: #f5f5f5;
  margin-bottom: 50px;
}
.iabout .iabout-inner { display: flex; gap: 55px; align-items: flex-start; }
.iabout .about-img {
  width: 400px;
  height: 300px;
  overflow: hidden;
  display: block;
  flex-shrink: 0;
}
.iabout .about-img img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  transition: transform 300ms;
}
.iabout .about-img:hover img { transform: scale(1.03); }
.iabout .about-text { flex: 1; }
.iabout .about-text .about-title h3 { font-size: 24px; line-height: 24px; font-weight: bold; margin-bottom: 22px; }
.iabout .about-text .about-title .title-line { width: 46px; height: 2px; display: block; background: #666; }
.iabout .about-text .about-desc { margin: 30px 0; line-height: 25px; height: 154px; overflow: hidden; color: #666; }
.iabout .about-text .about-btn {
  width: 130px;
  line-height: 36px;
  height: 36px;
  display: block;
  text-align: center;
  background: #67b306;
  color: #fff;
  transition: width 300ms;
}
.iabout .about-text .about-btn:hover { width: 140px; color: #fff; }

/* === News Section (inews) === */
.inews { padding-bottom: 60px; }
.inews .news-inner { display: flex; gap: 30px; }
.inews .news-col { width: 50%; }
.inews .news-title {
  width: 100%;
  height: 22px;
  line-height: 22px;
  margin-bottom: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.inews .news-title h3 { font-size: 22px; font-weight: bold; color: #67b306; display: flex; align-items: center; gap: 10px; }
.inews .news-title h3::before { content: ''; width: 4px; height: 22px; display: inline-block; background: #67b306; }
.inews .news-title .more-link { color: #67b306; }
.inews .news-title .more-link:hover { text-decoration: underline; }
.inews .news-featured {
  display: block;
  padding-bottom: 20px;
  border-bottom: 1px dashed #d4d4d4;
  margin-bottom: 15px;
}
.inews .news-featured img {
  width: 100px;
  height: 75px;
  float: left;
  display: block;
  object-fit: cover;
  margin-right: 20px;
  transition: filter 300ms;
}
.inews .news-featured h3 {
  color: #333;
  line-height: 24px;
  height: 24px;
  overflow: hidden;
  margin-bottom: 10px;
  transition: color 300ms;
}
.inews .news-featured .news-summary { line-height: 20px; height: 40px; overflow: hidden; color: #999; }
.inews .news-featured:hover img { filter: brightness(110%); }
.inews .news-featured:hover h3 { color: #67b306; }
.inews .news-list li {
  width: 100%;
  height: 55px;
  line-height: 55px;
  overflow: hidden;
  border-bottom: 1px dashed #d4d4d4;
}
.inews .news-list li a { display: block; width: 100%; transition: color 300ms; }
.inews .news-list li .news-date { color: #999; float: right; font-weight: normal; }

/* === Footer === */
.footer-main {
  width: 100%;
  padding: 20px 0;
  background: #86b350;
  color: #fff;
  line-height: 32px;
}
.footer-main .footer-inner { display: flex; flex-direction: column; }
.footer-main .footer-links {
  padding-bottom: 20px;
  margin-bottom: 20px;
  font-size: 16px;
  border-bottom: 1px solid #97c660;
}
.footer-main .footer-links span { color: #f9f9f9; display: inline-block; }
.footer-main .footer-links a { display: inline-block; color: #f9f9f9; padding-left: 10px; }
.footer-main .footer-links a:hover { opacity: 0.8; }
.footer-main .footer-body { display: flex; gap: 30px; }
.footer-main .footer-contact { width: 275px; flex-shrink: 0; }
.footer-main .footer-contact .ft-title { font-size: 16px; margin-bottom: 10px; }
.footer-main .footer-contact .ft-info { font-size: 12px; padding-bottom: 20px; }
.footer-main .footer-contact .ft-btn {
  width: 168px;
  height: 28px;
  line-height: 28px;
  display: block;
  text-align: center;
  border: 1px solid #fff;
  color: #fff;
  transition: all 300ms;
  font-size: 14px;
}
.footer-main .footer-contact .ft-btn:hover { background: #fff; color: #67b306; }
.footer-main .footer-nav { flex: 1; }
.footer-main .footer-nav .fn-list { display: flex; gap: 15px; }
.footer-main .footer-nav .fn-item { width: 110px; }
.footer-main .footer-nav .fn-item .fn-title { font-size: 14px; margin-bottom: 10px; }
.footer-main .footer-nav .fn-item .fn-title a { color: #fff; }
.footer-main .footer-nav .fn-item a { display: block; color: #fff; font-size: 12px; transition: opacity 300ms; }
.footer-main .footer-nav .fn-item a:hover { opacity: 0.8; }
.footer-main .footer-qr { flex-shrink: 0; text-align: center; font-size: 12px; }
.footer-main .footer-qr img {
  width: 110px;
  height: 110px;
  padding: 5px;
  background: #fff;
  display: block;
  margin: 0 auto 7px;
}

/* === Copyright === */
.copyright-bar {
  width: 100%;
  height: 42px;
  line-height: 42px;
  color: #fff;
  font-size: 12px;
  background: #638c3f;
  text-align: center;
}
.copyright-bar a { color: #fff; }
.copyright-bar a:hover { opacity: 0.8; }

/* === Back to Top Toolbar === */
.side-toolbar {
  width: 59px;
  position: fixed;
  right: 0;
  z-index: 999;
  bottom: 50%;
  margin-bottom: -144px;
}
.side-toolbar .tool-item {
  width: 59px;
  height: 59px;
  background: #67b306;
  margin-bottom: 5px;
  position: relative;
  transition: background 0.3s;
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.side-toolbar .tool-item a {
  padding: 5px 8px;
  line-height: 18px;
  color: #fff;
  font-size: 14px;
  text-align: center;
  text-decoration: none;
}
.side-toolbar .tool-item:hover { background: #333; }

/* === Inner Page Banner === */
.nybanner {
  width: 100%;
  height: 300px;
  overflow: hidden;
  position: relative;
}
.nybanner img {
  width: 1920px;
  display: block;
  position: absolute;
  left: 50%;
  margin-left: -960px;
  top: 0;
  object-fit: cover;
}
.nybanner .banner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
}
.nybanner .banner-title {
  font-size: 36px;
  color: #fff;
  font-weight: bold;
  letter-spacing: 4px;
}

/* === Breadcrumb === */
.sitepath {
  width: 100%;
  height: 48px;
  line-height: 48px;
  overflow: hidden;
  font-size: 14px;
  color: #88848b;
  border-bottom: 1px solid #f1f1f1;
  margin-bottom: 28px;
}
.sitepath a { color: #88848b; }
.sitepath a:hover { color: #67b306; }
.sitepath .sep { margin: 0 8px; }

/* === Inner Page Layout === */
.wrapper { display: flex; gap: 30px; padding-bottom: 40px; }
.wrapper .left-sidebar {
  width: 240px;
  flex-shrink: 0;
  position: relative;
  margin-top: 15px;
}
.wrapper .main-content { flex: 1; padding-bottom: 20px; }

/* Left Sidebar Menu */
.left-menu {
  position: relative;
  width: 100%;
  background: #67b306;
  color: #fff;
}
.left-menu .menu-title {
  padding: 30px 28px 27px;
  text-align: center;
  background: #528e06;
}
.left-menu .menu-title h3 { font-size: 36px; line-height: 36px; font-weight: bold; border-bottom: 1px solid #a9c783; padding-bottom: 27px; }
.left-menu .menu-title span { display: block; padding-top: 12px; font-size: 18px; text-transform: uppercase; }
.left-menu .menu-list { padding: 24px; }
.left-menu .menu-list li {
  width: 100%;
  line-height: 50px;
  margin-bottom: 5px;
  font-size: 18px;
  transition: all 300ms;
}
.left-menu .menu-list li a {
  display: block;
  color: #fff;
  transition: all 300ms;
  padding: 0 15px;
}
.left-menu .menu-list li:hover,
.left-menu .menu-list li.active { background: #528e06; }

/* === Content Section Titles === */
.n-tit { margin-bottom: 20px; }
.n-tit h3 { font-size: 24px; color: #000; margin-bottom: 22px; font-weight: bold; }
.n-tit .title-line { width: 28px; height: 2px; display: block; background: #000; }

/* === Product Grid on List Page === */
.product-grid { overflow: hidden; }
.product-grid .gridlist { width: 110%; }

/* === News List Page === */
.news-page-item {
  display: block;
  float: left;
  width: 100%;
  padding: 20px;
  background: #f7f7f7;
  margin-bottom: 28px;
  transition: box-shadow 300ms;
}
.news-page-item img {
  width: 150px;
  height: 112px;
  float: left;
  margin-right: 24px;
  display: block;
  object-fit: cover;
  transition: filter 300ms;
}
.news-page-item h3 {
  height: 36px;
  line-height: 36px;
  overflow: hidden;
  font-size: 18px;
  color: #000;
  margin-bottom: 5px;
  transition: color 300ms;
}
.news-page-item .news-excerpt { font-size: 14px; color: #999; line-height: 24px; overflow: hidden; }
.news-page-item:hover { box-shadow: 0 0 15px rgba(0,0,0,0.2); }
.news-page-item:hover h3 { color: #67b306; }
.news-page-item:hover img { filter: brightness(110%); }
.news-page-item .news-meta { font-size: 12px; color: #999; margin-top: 8px; }

/* === Product Detail Page === */
.product-detail { padding: 30px 0; }
.product-detail .detail-top { display: flex; gap: 30px; padding-bottom: 40px; border-bottom: 3px solid #67b306; margin-bottom: 30px; }
.product-detail .detail-img { width: 460px; flex-shrink: 0; }
.product-detail .detail-img img { width: 100%; height: 345px; object-fit: cover; display: block; }
.product-detail .detail-info { flex: 1; }
.product-detail .detail-info .product-name { font-size: 24px; color: #000; margin-bottom: 15px; font-weight: bold; }
.product-detail .detail-info .product-subtitle { color: #67b306; font-size: 18px; margin-bottom: 20px; }
.product-detail .detail-info .product-desc { padding: 15px; background: #f1f1f1; line-height: 28px; color: #666; margin-bottom: 20px; }
.product-detail .detail-info .detail-tel span { color: #000; display: block; }
.product-detail .detail-info .detail-tel strong { display: block; font-size: 36px; color: #67b306; font-weight: normal; }
.product-detail .detail-content { padding: 30px 0; border-top: 1px solid #f1f1f1; }
.product-detail .detail-content h3 { font-size: 20px; font-weight: bold; margin-bottom: 20px; color: #333; }
.product-detail .detail-content p { line-height: 28px; color: #666; margin-bottom: 15px; }
.product-detail .detail-content img { max-width: 100%; display: block; margin: 20px auto; }
.product-detail .param-table { width: 100%; border-collapse: collapse; margin: 20px 0; }
.product-detail .param-table th { background: #67b306; color: #fff; padding: 12px 15px; text-align: left; font-weight: bold; font-size: 14px; }
.product-detail .param-table td { padding: 12px 15px; border: 1px solid #e5e5e5; font-size: 14px; }
.product-detail .param-table tr:nth-child(even) td { background: #f9f9f9; }
.product-detail .features-list { margin: 20px 0; }
.product-detail .features-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 0;
  border-bottom: 1px dashed #e5e5e5;
  line-height: 24px;
  color: #666;
}
.product-detail .features-list li .feature-icon { color: #67b306; font-size: 18px; flex-shrink: 0; margin-top: 2px; }
.product-detail .related-products { padding-top: 30px; }
.product-detail .related-products h3 { font-size: 20px; font-weight: bold; margin-bottom: 20px; color: #333; }
.product-detail .related-products .gridlist { width: 110%; }

/* === News Detail Page === */
.show-page { background: #fff; }
.show-page .article-title { color: #333; margin-bottom: 5px; font-size: 24px; text-align: center; font-weight: bold; }
.show-page .article-meta {
  width: 100%;
  padding: 5px 0 10px;
  text-align: center;
  margin-bottom: 20px;
  border-bottom: 1px solid #eee;
}
.show-page .article-meta span { margin-right: 18px; font-size: 12px; color: #666; }
.show-page .article-content { color: #333; line-height: 28px; padding: 5px 0 30px; }
.show-page .article-content p { margin-bottom: 15px; text-indent: 2em; }
.show-page .article-content img { max-width: 100%; display: block; margin: 20px auto; }

/* Prev/Next navigation */
.re-link {
  width: 100%;
  margin: 20px 0 10px;
  line-height: 60px;
  border-top: 1px solid #ddd;
  border-bottom: 1px solid #ddd;
}
.re-link .prev-link, .re-link .next-link { width: 50%; line-height: 60px; color: #333; display: inline-block; }
.re-link .next-link { text-align: right; float: right; }
.re-link a { font-size: 16px; }
.re-link a:hover { color: #67b306; }

/* === About Page === */
.about-page .about-intro {
  background: #fff;
  padding: 40px 50px;
  margin-bottom: 30px;
}
.about-page .about-intro p { color: #666; line-height: 28px; margin-bottom: 15px; text-indent: 2em; }
.about-page .about-img { margin-bottom: 30px; width: 100%; display: block; }
.about-page .about-img img { width: 100%; display: block; object-fit: cover; }

/* Timeline */
.timeline-section { margin: 40px 0; }
.timeline-section h3 { font-size: 24px; font-weight: bold; margin-bottom: 30px; color: #333; }
.timeline { position: relative; padding: 20px 0; }
.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 100%;
  background: #67b306;
}
.timeline-item {
  display: flex;
  justify-content: flex-end;
  padding-right: calc(50% + 30px);
  position: relative;
  margin-bottom: 30px;
}
.timeline-item:nth-child(even) { justify-content: flex-start; padding-right: 0; padding-left: calc(50% + 30px); }
.timeline-item .timeline-dot {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 16px;
  background: #67b306;
  border: 3px solid #fff;
  border-radius: 50%;
  box-shadow: 0 0 0 2px #67b306;
  z-index: 1;
}
.timeline-item .timeline-content {
  background: #f5f5f5;
  padding: 20px;
  border-radius: 4px;
  position: relative;
}
.timeline-item .timeline-year { font-size: 20px; font-weight: bold; color: #67b306; margin-bottom: 5px; }
.timeline-item .timeline-text { color: #666; line-height: 24px; }

/* Culture cards */
.culture-section { margin: 40px 0; }
.culture-section h3 { font-size: 24px; font-weight: bold; margin-bottom: 30px; color: #333; }
.culture-cards { display: flex; gap: 30px; }
.culture-card {
  flex: 1;
  background: #f5f5f5;
  padding: 30px;
  text-align: center;
  border-bottom: 3px solid transparent;
  transition: all 300ms;
}
.culture-card:hover { border-bottom-color: #67b306; transform: translateY(-5px); }
.culture-card .card-icon { font-size: 40px; color: #67b306; margin-bottom: 15px; }
.culture-card h4 { font-size: 20px; font-weight: bold; color: #333; margin-bottom: 10px; }
.culture-card p { color: #666; line-height: 24px; }

/* Team section */
.team-section { margin: 40px 0; }
.team-section h3 { font-size: 24px; font-weight: bold; margin-bottom: 30px; color: #333; }
.team-grid { display: flex; gap: 20px; flex-wrap: wrap; }
.team-member { width: calc(25% - 15px); text-align: center; }
.team-member img {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
  margin: 0 auto 15px;
  border: 3px solid #f0f0f0;
  transition: border-color 300ms;
}
.team-member:hover img { border-color: #67b306; }
.team-member h4 { font-size: 16px; font-weight: bold; color: #333; margin-bottom: 5px; }
.team-member p { color: #999; font-size: 14px; }

/* === Contact Page === */
.contact-page { line-height: 32px; }
.contact-page .contact-section-title { padding: 0 0 25px; color: #67b306; font-size: 24px; font-weight: bold; }
.contact-page .contact-info-grid {
  display: flex;
  gap: 30px;
  margin-bottom: 40px;
}
.contact-page .contact-info-item {
  flex: 1;
  padding: 30px;
  background: #f5f5f5;
  text-align: center;
  border-radius: 4px;
  transition: all 300ms;
}
.contact-page .contact-info-item:hover { transform: translateY(-5px); box-shadow: 0 5px 15px rgba(0,0,0,0.1); }
.contact-page .contact-info-item .info-icon { font-size: 36px; color: #67b306; margin-bottom: 15px; }
.contact-page .contact-info-item h4 { font-size: 16px; font-weight: bold; margin-bottom: 8px; color: #333; }
.contact-page .contact-info-item p { color: #666; font-size: 14px; }

/* Contact form */
.contact-form { padding-bottom: 20px; }
.contact-form .form-row { display: flex; gap: 20px; margin-bottom: 20px; }
.contact-form .form-group {
  flex: 1;
  height: 56px;
  line-height: 56px;
  border: 1px solid #e5e5e5;
  position: relative;
}
.contact-form .form-group label {
  padding-left: 15px;
  position: absolute;
  left: 0;
  top: 0;
  z-index: 11;
  height: 56px;
  line-height: 56px;
  font-size: 18px;
  color: #ccc;
}
.contact-form .form-group input {
  width: 100%;
  height: 56px;
  line-height: 56px;
  padding-left: 70px;
  border: 0;
  outline: none;
  font-size: 16px;
  color: #333;
}
.contact-form .form-group input::placeholder { color: #ccc; }
.contact-form .msg-group {
  width: 100%;
  height: auto;
  line-height: normal;
  border: 1px solid #e5e5e5;
  margin-bottom: 20px;
  position: relative;
}
.contact-form .msg-group label {
  padding-left: 15px;
  position: absolute;
  left: 0;
  top: 0;
  z-index: 11;
  height: 56px;
  line-height: 56px;
  font-size: 18px;
  color: #ccc;
}
.contact-form .msg-group textarea {
  width: 100%;
  height: 200px;
  padding: 15px;
  border: 0;
  outline: none;
  resize: none;
  font-size: 16px;
  font-family: "microsoft yahei", sans-serif;
  color: #333;
  line-height: 28px;
}
.contact-form .msg-group textarea::placeholder { color: #ccc; }
.contact-form .submit-btn {
  width: 232px;
  height: 52px;
  line-height: 52px;
  border: 2px solid #67b306;
  text-align: center;
  background: #67b306;
  color: #fff;
  cursor: pointer;
  font-size: 18px;
  transition: all 300ms;
}
.contact-form .submit-btn:hover { background: #fff; color: #67b306; }

/* === Responsive Design === */
@media (max-width: 1260px) {
  .w1200 { width: 96%; max-width: 1220px; }
  .iservice .iservice-list { flex-wrap: wrap; }
  .iservice .iservice-item { width: 45%; }
  .iproduct .iproduct-inner { flex-direction: column; }
  .iproduct .ipro-nav { width: 100%; padding-top: 0; height: auto; }
  .iproduct .ipro-nav .nav-title { position: relative; }
  .iproduct .ipro-nav .pro-contact { position: relative; top: auto; }
  .iproduct .ipro-nav .nav-item { display: inline-block; }
  .iabout .iabout-inner { flex-direction: column; }
  .iabout .about-img { width: 100%; }
  .inews .news-inner { flex-direction: column; }
  .inews .news-col { width: 100%; }
  .gridlist .grid-item { width: calc(33.33% - 18px); margin-right: 18px; }
  .gridlist .grid-item img,
  .gridlist .grid-item .item-overlay,
  .gridlist .grid-item .item-plus { width: 100%; }
  .footer-main .footer-body { flex-wrap: wrap; }
  .footer-main .footer-nav .fn-list { flex-wrap: wrap; }
  .wrapper { flex-direction: column; }
  .wrapper .left-sidebar { width: 100%; }
  .contact-page .contact-info-grid { flex-wrap: wrap; }
  .contact-form .form-row { flex-direction: column; }
  .culture-cards { flex-wrap: wrap; }
  .culture-card { flex: 1 1 calc(33% - 20px); min-width: 250px; }
  .team-member { width: calc(50% - 10px); }
  .product-detail .detail-top { flex-direction: column; }
  .product-detail .detail-img { width: 100%; }
}

@media (max-width: 768px) {
  .top-main { display: none; }
  .header-main { height: auto; padding: 10px 0; }
  .header-main .tel-box { display: none; }
  .mobile-menu-btn { display: flex; }
  .nav-main .nav-inner { position: relative; }
  .nav-main .nav-list {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 45px;
    left: 0;
    width: 100%;
    background: #313131;
    z-index: 999;
  }
  .nav-main .nav-list.open { display: flex; }
  .nav-main .nav-item { width: 100%; }
  .nav-main .sub-nav {
    position: relative;
    top: 0;
    opacity: 1;
    visibility: visible;
    transform: none;
    display: none;
  }
  .nav-main .nav-item:hover .sub-nav,
  .nav-main .nav-item .sub-nav.open { display: block; }
  .banner .banner-list { height: 300px; }
  .banner .banner-item { height: 300px; }
  .banner .banner-item img { height: 300px; width: 100%; margin-left: 0; left: 0; }
  .iservice .iservice-item { width: 100%; }
  .gridlist .grid-item { width: calc(50% - 10px); margin-right: 10px; }
  .ixbanner { height: auto; padding: 30px 0; }
  .ixbanner .ixbanner-inner { flex-direction: column; }
  .iservice2 .service-img { width: 100%; }
  .nybanner { height: 200px; }
  .nybanner img { width: 100%; height: 200px; margin-left: 0; left: 0; }
  .about-page .about-intro { padding: 20px; }
  .timeline-item { padding-right: 0; padding-left: 40px; }
  .timeline-item:nth-child(even) { padding-left: 40px; }
  .timeline::before { left: 10px; }
  .timeline-item .timeline-dot { left: 10px; }
  .team-member { width: calc(50% - 10px); }
  .contact-page .contact-info-grid { flex-direction: column; }
  .culture-cards { flex-direction: column; }
  .culture-card { min-width: auto; }
  .footer-main .footer-body { flex-direction: column; }
  .footer-main .footer-nav .fn-list { flex-wrap: wrap; }
  .footer-main .footer-nav .fn-item { width: 50%; }
  .side-toolbar { display: none; }
  .news-page-item img { width: 100px; height: 75px; }
}

@media (max-width: 480px) {
  .gridlist .grid-item { width: 100%; margin-right: 0; }
  .team-member { width: 100%; }
  .footer-main .footer-nav .fn-item { width: 100%; }
  .banner .banner-list { height: 200px; }
  .banner .banner-item { height: 200px; }
  .banner .banner-item img { height: 200px; }
}