@charset "utf-8";
header {
  width: 100%;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -o-transition: all 0.5s;
  z-index: 999;
  background: transparent;
  position: relative;
  top: 0px;
  transition: all 0.3s ease-in-out;
}
.header {
  width: 100%;
  max-width: 1920px;
  background: linear-gradient(to bottom, rgba(0,0,0,0.5), rgba(0,0,0,0.3) 0%, rgba(0,0,0,0) 90%);
  color: #fff;
  transition: all 0.3s ease-in-out;
  position: fixed;
  top: 0px;
}
.header .header-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.header-nav .hvr {
  display: flex;
  align-items: center;
}
.header .logo {
  display: flex;
  align-items: center;
}
@media (max-width:992px) {  
  .header-nav .hvr {
    margin-right: 30px;
  }
}
@media (max-width:768px) {
  .header-nav .hvr {
    margin-right: 0px;
  }
}
.header .logo img {
  height: 54px;
  padding: 0px 0px;
  width: auto;
  transition: all 0.5s;
}

header .nav {
  padding: 0px 0px;
  display: flex;
  align-items: center;
  justify-content: center;
}

header .nav>ul {
  transition: all 0.5s;
  display: flex;
  flex-wrap: nowrap;
}

header .nav>ul>li {
  display: inline-block;
  position: relative;
  padding: 0;
}
header .nav>ul>li.active a.cnav-a,header .on .nav>ul>li.active a.cnav-a {
  color: #01b753;
}
/*header .on .nav>ul>li.active a.cnav-a,header .nav>ul>li:last-child a {
  color: #01b753;
}
 header .nav>ul>li:last-child a{
  color: #999;
  background: url(../img/cont.png) no-repeat center center;
  background-size: 100%;
}
header .header.on .nav>ul>li:last-child a{
  color: #fff;
  background: url(../img/cont1.png) no-repeat center center;
  background-size: 100%;
} */

header .nav>ul>li>a {
  display: block;
  font-size: 18px;
  color: #fff;
  padding: 0px 40px;
  line-height: 80px;
  transition: all 0.3s;
}

header .nav>ul>li:hover a,
header .nav>ul>li.active a{
  font-weight: 600;
}

header .language ul {
  display: flex;
  justify-content: flex-end;
}

header .language ul li:last-child {
  display: flex;
  align-items: center;
  margin-left: 20px;
}
header .language ul li a {
  color: #fff;
  font-weight: 800;
  line-height: 80px;
  margin-left: 20px;
}
header .language ul li:first-child a {
  padding: 5px 0 5px 30px;
  background: url(../img/lg1.png) no-repeat 0 center;
  background-size: 24px 24px;
}
header .l-btn{
  border: none;
  width: 25px;
  height: 25px;
  padding: 10px;
  background:transparent url(../img/search1.png) no-repeat center;
}
header .on .language ul li:first-child a {
  background: url(../img/lg.png) no-repeat 0 center;
}
header .on .l-btn{
  border: none;
  width: 25px;
  height: 25px;
  padding: 10px;
  background:transparent url(../img/search.png) no-repeat center;
}
@media (max-width:992px) {
  header .header.on .nav>ul>li:last-child,
  header .nav>ul>li:last-child a,
  header .header.on .nav>ul>li:last-child a{
    color: #181818;
    background: none;
  }
  header .nav>ul>li:last-child a:hover,
  header .header.on .nav>ul>li:last-child a:hover{
    color: #01b753;
  }
  header .nav>ul>li:hover a,
  header .nav>ul>li.active a{
    font-weight: 400;
  }
  header .nav>ul>li:hover .li-a,
    header .nav>ul>li.active .li-a{
    font-weight: 500;
  }
  header .nav>ul>li .cnav-a{
    font-weight: 600;
    font-size: 16px;
  }
  header .nav>ul>li:hover .cnav-a,header .nav>ul>li.active a.cnav-a{
    font-weight: 600;
  }
  header .language ul li:first-child a{
    color: #181818;
    background: url(../img/lg.png) no-repeat 0 center;
  }
  header .l-btn{
    background:transparent url(../img/search.png) no-repeat 0 0;
  }
}
.header .nav>ul>li:hover .submenu {
  opacity: 1;
  visibility: visible
}

.header .nav>ul>li .submenu li:hover a,
header .header.on .nav>ul>li .submenu li:hover a {
  color: #01b753;
}

.submenu {
  width: 100%;
  left: 50%;
  margin-left: -50%;
  position: absolute;  
  top: 100%;
  z-index: 0;
  -webkit-perspective: 400px;
  -moz-perspective: 400px;
  -ms-perspective: 400px;
  -o-perspective: 400px;
  perspective: 400px;
  opacity: 0;
  visibility: hidden;
}
.sub-menu{ 
  padding: 10px 0;
  border-radius: 10px;  
  background: #fff;
  border: 1px solid #ccc;
}
.xmenu{   
  position: absolute;
    left: calc(100% + 80px);
    top: 0;
    height: 0px;
    opacity: 0;
    overflow: hidden;
    z-index: 10;
    border-radius: 10px;
    -webkit-box-shadow: 0 25px 50px 0 rgba(0, 0, 0, .15);
    box-shadow: 0 25px 50px 0 rgba(0, 0, 0, .15);
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    -webkit-transform: translateZ(0);
    -webkit-transition: opacity .15s ease-out;
    -o-transition: opacity .15s ease-out;
    transition: opacity .15s ease-out;
}

.submenu li:hover ul {
    opacity: 1.0;
    height: auto;
    z-index: 20;
    overflow: visible;
}
.submenu li {
  display: block;
  width: 100%;
  opacity: 0;
  background-color: rgba(0, 0, 0, 0.7);
  transition: all .5s;
  text-align: center;
  position: relative;
}

.header .nav .submenu li a {
  font-size: 14px;
  padding: 5px 0;
  width: 100%;
  color: #181818;
  background: #fff;
  border-bottom: 1px solid #fff;
  display: block;
  transition: .6s;
}

.header .nav>ul>li:hover .submenu li,
.header .nav>ul>li:focus .submenu li {
  opacity: 1;
  -webkit-transform: none;
  -moz-transform: none;
  -ms-transform: none;
  -o-transform: none;
  transform: none;
}

.header .nav>ul>li:hover .submenu li:nth-child(1) {
  -webkit-transition-delay: 0s;
  -moz-transition-delay: 0s;
  -ms-transition-delay: 0s;
  -o-transition-delay: 0s;
  transition-delay: 0s;
}

.header .nav>ul>li:hover .submenu li:nth-child(2) {
  -webkit-transition-delay: 50ms;
  -moz-transition-delay: 50ms;
  -ms-transition-delay: 50ms;
  -o-transition-delay: 50ms;
  transition-delay: 50ms;
}

.header .nav>ul>li:hover .submenu li:nth-child(3) {
  -webkit-transition-delay: 100ms;
  -moz-transition-delay: 100ms;
  -ms-transition-delay: 100ms;
  -o-transition-delay: 100ms;
  transition-delay: 100ms;
}

.header .nav>ul>li:hover .submenu li:nth-child(4) {
  -webkit-transition-delay: 150ms;
  -moz-transition-delay: 150ms;
  -ms-transition-delay: 150ms;
  -o-transition-delay: 150ms;
  transition-delay: 150ms;
}

.header .nav>ul>li:hover .submenu li:nth-child(5) {
  -webkit-transition-delay: 200ms;
  -moz-transition-delay: 200ms;
  -ms-transition-delay: 200ms;
  -o-transition-delay: 200ms;
  transition-delay: 200ms;
}

.header .nav>ul>li:hover .submenu li:nth-child(6) {
  -webkit-transition-delay: 250ms;
  -moz-transition-delay: 250ms;
  -ms-transition-delay: 250ms;
  -o-transition-delay: 250ms;
  transition-delay: 250ms;
}

.header .nav>ul>li:hover .submenu li:nth-child(7) {
  -webkit-transition-delay: 300ms;
  -moz-transition-delay: 300ms;
  -ms-transition-delay: 300ms;
  -o-transition-delay: 300ms;
  transition-delay: 300ms;
}

.header .nav>ul>li:hover .submenu li:nth-child(8) {
  -webkit-transition-delay: 350ms;
  -moz-transition-delay: 350ms;
  -ms-transition-delay: 350ms;
  -o-transition-delay: 350ms;
  transition-delay: 350ms;
}

.submenu li:nth-child(1) {
  -webkit-transition-delay: 350ms;
  -moz-transition-delay: 350ms;
  -ms-transition-delay: 350ms;
  -o-transition-delay: 350ms;
  transition-delay: 350ms;
}

.submenu li:nth-child(2) {
  -webkit-transition-delay: 300ms;
  -moz-transition-delay: 300ms;
  -ms-transition-delay: 300ms;
  -o-transition-delay: 300ms;
  transition-delay: 300ms;
}

.submenu li:nth-child(3) {
  -webkit-transition-delay: 250ms;
  -moz-transition-delay: 250ms;
  -ms-transition-delay: 250ms;
  -o-transition-delay: 250ms;
  transition-delay: 250ms;
}

.submenu li:nth-child(4) {
  -webkit-transition-delay: 200ms;
  -moz-transition-delay: 200ms;
  -ms-transition-delay: 200ms;
  -o-transition-delay: 200ms;
  transition-delay: 200ms;
}

.submenu li:nth-child(5) {
  -webkit-transition-delay: 150ms;
  -moz-transition-delay: 150ms;
  -ms-transition-delay: 150ms;
  -o-transition-delay: 150ms;
  transition-delay: 150ms;
}

.submenu li:nth-child(6) {
  -webkit-transition-delay: 100ms;
  -moz-transition-delay: 100ms;
  -ms-transition-delay: 100ms;
  -o-transition-delay: 100ms;
  transition-delay: 100ms;
}

.submenu li:nth-child(7) {
  -webkit-transition-delay: 50ms;
  -moz-transition-delay: 50ms;
  -ms-transition-delay: 50ms;
  -o-transition-delay: 50ms;
  transition-delay: 50ms;
}

.submenu li:nth-child(8) {
  -webkit-transition-delay: 0s;
  -moz-transition-delay: 0s;
  -ms-transition-delay: 0s;
  -o-transition-delay: 0s;
  transition-delay: 0s;
}

/* 下拉 */
.cnav-under{
  width: 100%;
  position: absolute;
  left: 0;top: 120px;
}
.cnav-under .cnav-under1{
  background: #2a2a2a;
  height: 600px;
  opacity: 0;
  transition: all 0.5s;
  padding: 40px 0;
  display: none;
}
.cnav-under a{
  display: block;
}
.cnav-under .cnav-under1 .cnav-l{
  width: 400px;
  height: 520px;
  overflow-y: auto;
}
.cnav-under .cnav-under1 .cnav-r{
  width: auto;
}
.cnav-under .cnav-under1 .cnav-l h3 a{
  color: #fff;
  line-height: 1.25rem;
  line-height: 2;
}
.cnav-under .cnav-under1 .cnav-l p a{
  padding-left: 15px;
  color: #c9c9c9;
  line-height: 1rem;
  line-height: 2;
}
.cnav-under .cnav-under1 .cnav-l h3 a:hover,.cnav-under .cnav-under1 .cnav-l p a:hover
{
  color: #01b753;
}
.cnav li:hover .cnav-under .cnav-under1{
  opacity: 1;
  display: block;
}

.header.on {
  position: fixed;
  top: 0px;
  margin-top: 0px;
  background: #fff;
}
.header.on .nav>ul>li>a,.header.on .language ul>li a{
  color: #181818;
}
.header .nav .pnav{
  display: none;
}

@media (max-width: 1500px) {
  header .language ul>li a {
    color: #fff;
    font-weight: 800;
    padding-left: 12px;
  }
  header .nav>ul>li>a {
    padding: 0px 28px;
  }
  .header .nav .submenu li a {
    font-size: 12px;
  }
}
@media (max-width: 1280px) {
  .header .logo img {
    height: 40px;
  }
  header .nav>ul>li>a {
    padding: 0px 23px;
  }
  header .language ul>li a {
    padding-left: 5px;
  }
}

/* ==================================================================
   移动端导航：cnav（桌面整幅下拉）↔ pnav（折叠列表）切换
   断点必须与文件末尾的「折叠菜单面板（≤1024px）」一致，
   否则 993–1024px 区间会出现「抽屉打开但内容为空」的问题。
   ================================================================== */
@media (max-width: 1024px) {
  .header {
    position: relative;
    margin-top: 0;
  }

  header .nav>ul {
    display: block;
  }

  /* 移动端栏目容器：整行可点（具体触控尺寸见折叠菜单模块） */
  header .nav ul li {
    display: block !important;
  }

  header.on .nav>ul>li>a,
  header .nav ul li a {
    color: #424242;
    line-height: 1.4;
  }
  header .nav ul li .li-a{
    font-weight: 500;
  }
  .pnav a:hover{
    color: #01b753;
  }

  header .nav>ul>li::before,
  header .nav>ul>li:last-child::after {
    border-left: 0px dotted #c1c1c1;
  }

  /* 关键：≤1024px 隐藏桌面下拉、启用折叠列表 */
  .header .nav .cnav{
    display: none;
  }
  .header .nav .pnav{
    display: block;
  }
}
@media (max-width: 768px) {
  .header .logo img {
    height: 35px;
  }
  header .language ul {
    padding-right: 35px;
  }
  header .language ul li a {
    margin-left: 8px;
    padding-left: 5px;
  }
  header .l-btn {
    padding: 6px;
    width: 22px;
    height: 22px;
  }
}
@media (max-width: 480px) {
  header .language ul {
    padding-right: 40px;
  }
  header .language ul li a {
    font-size: 12px;
    margin-left: 4px;
  }
}



/* banner */
.banner {
  position: relative;
}
.banner .swiper-wrapper {
  overflow: hidden;
}
.banner img {
  width: 100%;
}
.banner .banner-con {
  width: 80%;
  color: #fff;
  position: absolute;
  z-index: 9;
  top: 30%;
  left: 10%;  
  text-align: center;
}
.banner h3 {
  font-size: clamp(16px, 4vw, 3.5rem);
  font-weight: 700;
}
.banner-con h3 {
  margin-bottom: 15px;
}
.link {
  font-size: 1.25rem;
}

.link .mr{
  margin-right: 3rem;
  text-align: left;
}
.banner .banner-con .link p{
  margin-bottom: 30px;
}
.banner .banner-con .link a{
  margin-top: 0;
}
.banner .banner-con .link p a{
  color: #fff;
  display: inline-block;
  font-size: 1.375rem;
}
.banner .banner-con .link p a:hover{
  color: #01b753;
}
.banner .banner-con p a::after{
  content: '|';
  color: #fff;
  margin: 0 15px;
}
.banner .banner-con p a:last-child:after{
  opacity: 0;
  margin: 0;
}
.ban-pagination{
  position: absolute;
  bottom: 5%;
  left: 50%;
  transform: translateX(-50%);
}
.ban-pagination span{
  margin-right: 10px;
}
@media (max-width: 992px) {
  .banner .banner-con {
    top: 50%;
    transform: translateY(-50%);
  }
  .link .more{
    margin-right: 15px;
  }
  .link .more,.link .msg-btn{
    width: 140px;
    font-size: 12px;
    padding: 8px 10px 8px 15px;
  }
  .link .more::after,
  .link .msg-btn::after {
    right: 7px;
    top: 4px;
    width: 22px;
    height: 20px;
  }
  .banner .banner-text .link p {
    margin-bottom: 10px;
  }
  .banner .banner-text .link p a{
    font-size: 14px;
  }
  .banner .banner-text p a::after{
    margin: 0 10px;
  }
}

.common {
  padding-top: 7.0rem;
  padding-bottom: 7.0rem;
}
.commonT {
  padding-top: 7.0rem;
}
.commonB {
  padding-bottom: 7.0rem;
}
.commonM {
  padding-top: 3.0rem;
}
.more{
  color: #181818;
  min-width: 280px;
  max-width: 100%;
  text-align: left;
  display: inline-block;
  padding: 12px 70px 12px 30px;
  background: url(../img/more.png) no-repeat left center;
  background-size: 100% 100%;
  font-size: 1.25rem;
  transition: all 0.6s;
  position: relative;
}
.more::after{
  position: absolute;
  right: 15px;
  top: 0;
  content: '';
  width: 45px;
  height: 100%;
  display: inline-block;
  background: url(../img/right.png) no-repeat center;
  background-size: 100%;
}
.con-title{
  display: flex;
  flex-direction: column;
}
.title {
  font-size: 2.825rem; 
  line-height: 1;
  font-weight: 600;
  margin-bottom: 2.0rem;
}
.tit-con {
  display: flex;
  align-items: center;
  
}
.tit-con a{
  font-size: 1.125rem;
  color: #01b753;
}
.tit-con a:hover{
  color: #01b753;
}
.tit-con a:after {
  content: '|'; 
  margin: 0 5px;
  color: #2b2b2b;
}
.tit-con a:last-child::after {
  content: '';  
  margin: 0 0px;
}
.con-title .navinfo{ 
  margin: 20px 0px 60px;
}

.nr{
  display: flex;
  align-items: stretch;
  flex-wrap: wrap;
}
.nr .con-title{
  width: 35%;
}
.nr .nr-img{
  width: 65%;
  display: flex;
  align-items: center;
}
@media (max-width:992px) {
  .common {
    padding-top: 3.0rem;
    padding-bottom: 3.0rem;
  }
  .solution .nr {
    padding: 2rem 0;
  }
  .more{
  padding: 10px 0px 10px 20px;
  width: 200px;
  max-width: 80%;
  font-size: 1.4rem;
}
.more::after {
  right: 10px;
  top: 5px;
  width: 39px;
  height: 36px;
}
.tit-con {
  margin-bottom: 20px;
}
.tit-con a{
  font-size: 14px;
}
.nr .con-title{
  width: 100%;
  margin-bottom: 4rem;
}
.nr .nr-img{
  width: 100%;
}
}

/* 关于我们 */
.product-cont .cont-txt{
  margin-bottom: 2.0rem;
}
.product-about .product-img{
  text-align: right;
}
.product-cont .more{
  color: #fff;
  background: url(../img/more2.png) no-repeat left center;
}
.product-cont .more::after{
  background: url(../img/right2.png) no-repeat center;
}
.product-title{ text-align: center; font-size: 1.5rem;}
.product-sign {
  padding: 3.5rem 0 0;
  text-align: center;
}
.glo-box {
  position: relative;
  text-align: center;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -o-transition: all 0.5s;
  padding: 0px 2rem;
}
.glo-box:after {
  content: "";
  position: absolute;
  text-align: center;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -o-transition: all 0.5s;
  width: 3px;
  height: 70%;
  top: 15%;
  right: 0;
  background-color: #000;
  border-radius: 100%;
}
.product-sign .col-md-3:last-child .glo-box:after{
  width: 0px;
}
.glo-title {
  width: 100%;
  margin: 20px auto;
}
.glo-img img {
  max-width: 60px;
}
.glo-title h5 {
  font-family: Rajdhani, sans-serif;
  font-weight: 700;
  letter-spacing: 0.025rem;
  text-transform: uppercase;
  -ms-word-wrap: break-word;
  word-wrap: break-word; 
  font-size: 2.85rem;
  padding: 0 1.25rem;
}

/* 解决方案 */
.solution{
  background-repeat: no-repeat;
  background-position: center center;
  background-size: cover;
  background-color: #fff;
}
.solution .nr{
  flex-direction: row;
  padding: 10rem 0;
}
/* .solution .nr .title{
  color: #fff;
} */
.solution:nth-child(2n+1) .nr{
  flex-direction: row-reverse;
}

.solution:nth-child(2n+1) .more,.aboutus-btn .more{
  background: url(../img/more3.png) no-repeat left center;
  background-size: 100% 100%;
  color: #fff;
}
/* 多图 */
.pic-s ul{
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}
.pic-s ul li{
  margin-bottom: 1.5rem;
}
.pic-s ul li:nth-child(1),.pic-s ul li:nth-child(4),.pic-s ul li:nth-child(5){
  width: 62%;
}
.pic-s ul li:nth-child(2),.pic-s ul li:nth-child(3),.pic-s ul li:nth-child(6){
  width: 37%;
}
@media (max-width: 768px) {
  .pic-s ul li {
    width: 100% !important;
  }
}
/* 新闻 */
.news{
  background: #fff;
  background-size: 100% 100%;
}
.news .title{
  color: #181818;
  display: flex;
  justify-content: space-between;
}
.news .title .more{
  width: 200px;
}
.news .con-title {
  margin-bottom: 3rem;
  position: relative;
}
.news .inws img{
  border-radius: 2.0rem;
}
.inws .inws-1{
  font-size: 1.125rem;
  color: #999;
  margin-top: 1.5rem;
}
.inws .inws-2{
  font-size: 1.5rem;
  color: #181818;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.news-desc {
  font-size: 0.875rem;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
   margin-bottom: 15px;
}
.news-btn {      
  color: #01b753; 
  border-bottom: 1px solid #01b753;
}
@media (max-width:992px) {
  .inws {
    padding-left: 30px;
  }
  .inws .inws-1 {
    font-size: 1.4rem;
  }
  .inws .inws-2 {
    font-size: 1.8rem;
  }
}

.ncommon {
  padding-top: 60px;
  padding-bottom: 60px; 
  min-height: 400px;
}

@media (max-width: 767px) {
  .common,
  .ncommon {
    padding-top: 45px;
    padding-bottom: 45px;
    padding-left: 0;
    padding-right: 0;
  }

  .title {
    font-size: 26px;
    margin-bottom: 15px;
  }

}

/* ==================== 移动端深度适配优化 ==================== */

/* --- 导航栏：小屏文字与内边距微调（触控高度见折叠菜单模块） --- */
@media (max-width: 767px) {
  header .nav ul li a,
  header.on .nav>ul>li>a,
  header .nav ul li p {
    font-size: 14px;
  }
  header .nav ul li .sub-menu {
    padding: 5px 0;
  }
  .header .nav .submenu li a {
    font-size: 12px;
    padding: 4px 0;
  }
}

/* Banner - 超小屏幕：文字大小适配 */
@media (max-width: 480px) {
  .banner h3 {
    font-size: clamp(16px, 5vw, 24px);
  }
  .banner .banner-con .link p a {
    font-size: 10px;
    margin-bottom: 5px;
  }
  .banner .banner-con p a::after {
    margin: 0 6px;
  }
  .link .more,
  .link .msg-btn {
    width: 110px;
    min-width: auto;
    font-size: 10px;
    padding: 6px 5px 6px 10px;
  }
  .link .more::after,
  .link .msg-btn::after {
    display: none;
  }
  .link .mr {
    margin-right: 1rem;
  }
}

/* 首页解决方案区块 - 小屏幕文字换行 */
@media (max-width: 767px) {
  .solution .nr {
    padding: 3rem 0;
  }
  .nr .con-title {
    width: 100%;
    margin-bottom: 2rem;
  }
  .nr .nr-img {
    width: 100%;
  }
  .tit-con {
    flex-wrap: wrap;
    margin-bottom: 15px;
  }
  .tit-con a {
    font-size: 12px;
    white-space: nowrap;
  }
  .news .title .more {
    width: 140px;
  }
}

/* 首页新闻 - 手机端适应 */
@media (max-width: 767px) {
  .inws {
    padding-left: 15px;
  }
  .inws .inws-1 {
    font-size: 12px;
  }
  .inws .inws-2 {
    font-size: 14px;
  }
  .inws img {
    width: 100%;
    height: auto;
  }
}

/* 标题溢出处理 */
@media (max-width: 480px) {
  .title {
    font-size: 20px !important;
    word-break: break-word;
  }
  .solution .nr .title {
    font-size: 20px;
  }
  .more {
    padding: 8px 0 8px 12px;
    width: 150px;
    font-size: 12px;
    min-width: 0;
  }
  .more::after {
    right: 5px;
    width: 28px;
    height: 26px;
    top: 3px;
  }
}

/* 产品介绍区视频 */
.product-video {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: 1.5rem;
}
.product-video iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* 新闻区一行4个 */
.news-list {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -15px;
}
.news-item {
  padding: 0 15px;
  margin-bottom: 2.5rem;
  box-sizing: border-box;
}
.news-item .inws {
  display: block;
}
.news-item .inws img {
  width: 100%;
  height: auto;
  border-radius: 2rem;
}
@media (max-width: 767px) {
  .news-item {
    width: 50% !important;
    flex: 0 0 50%;
  }
}
@media (max-width: 480px) {
  .news-item {
    width: 100% !important;
    flex: 0 0 100%;
  }
}

/* 页脚 ShinsonAir 区块（社交图标下方，整块可点击跳转） */
.foot-air {
  display: flex;
  flex-direction: column; 
}
.foot-air .air-logo img {
  height: 60px;
  width: auto;
  display: block;
  transition: all 0.4s;
}
.foot-air:hover .air-logo img {
  transform: scale(1.05);
}
.foot-air .air-txt {
  font-size: 1.5rem;
  color: #fff;
  font-weight: 400;
  padding-top: 15px;
}

/* ==================================================================
   顶部导航下拉菜单（整幅 mega menu）
   设计依据：下拉菜单设计.docx
   - 白色半透明面板，能隐约看到顶部 banner
   - 左：栏目/产品分类；右：子项/产品系列名
   - 悬停文字变绿 #01b753
   ================================================================== */

/* 顶层项取消 relative，让 .mega 相对 .header（fixed）整幅定位 */
header .nav>ul.cnav>li {
  position: static;
}
/* 顶层文字悬停/选中变绿 */
header .nav>ul.cnav>li:hover>a.cnav-a,
header .nav>ul.cnav>li.active>a.cnav-a {
  color: #01b753;
}

/* 下拉面板：整幅、半透明白、默认隐藏（可隐约看到顶部 banner） */
.mega {
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  z-index: 20;
  background: rgba(255, 255, 255, 0.88);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
  opacity: 0;
  visibility: hidden;
  -webkit-transform: translateY(10px);
  transform: translateY(10px);
  -webkit-transition: opacity .3s ease, visibility .3s ease, -webkit-transform .3s ease;
  transition: opacity .3s ease, visibility .3s ease, transform .3s ease;
}
header .nav>ul.cnav>li:hover .mega,
header .nav>ul.cnav>li:focus-within .mega {
  opacity: 1;
  visibility: visible;
  -webkit-transform: translateY(0);
  transform: translateY(0);
}

/* 内容容器 */
.mega-box {
  max-width: 1600px;
  margin: 0 auto;
  padding: 45px 30px 55px;
  display: flex;
  align-items: flex-start;
}

/* 左侧：栏目名 / 产品分类 */
.mega-side {
  width: 280px;
  flex: 0 0 280px;
  padding-right: 30px;
}
.mega-cat {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 17px;
  color: #555;
  line-height: 1.4;
  padding: 13px 0;
  cursor: pointer;
  transition: color .3s;
}
.mega-cat i {
  font-size: 14px;
  opacity: 0;
  -webkit-transform: translateX(-4px);
  transform: translateX(-4px);
  transition: all .3s;
}
.mega-cat:hover,
.mega-cat.is-on {
  color: #01b753;
}
.mega-cat.is-on i {
  opacity: 1;
  -webkit-transform: translateX(0);
  transform: translateX(0);
}

/* 右侧：子项 / 产品系列 */
.mega-body {
  flex: 1;
  min-height: 120px;
  padding-left: 45px;
  border-left: 1px solid rgba(0, 0, 0, 0.06);
}
.mega-pane {
  display: none;
}
.mega-pane.is-on {
  display: block;
}
.mega-ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.mega-ul li {
  margin-bottom: 13px;
}
.mega-ul li a {
  color: #666;
  font-size: 15px;
  display: inline-block;
  transition: color .3s;
}
.mega-ul li a:hover {
  color: #01b753;
}
/* 右侧子项横向单行排列（Products 系列 / Solutions / Service / About） */
.mega-ul-row {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  padding-top: 13px; /* 与左侧 .mega-cat 的 padding 对齐，使右侧文本与左侧第一个分类文本处于同一水平线 */
}
.mega-ul-row li {
  width: auto;
  flex: 0 0 auto;
  margin-bottom: 0;
  padding-right: 38px;
  box-sizing: border-box;
}
.mega-ul-row li:last-child {
  padding-right: 0;
}

/* ==================================================================
   下拉右侧：带图卡片（上图下名）— Products / Solutions
   - 每项：上方缩略图（读栏目 dimg 大图）+ 下方名称
   ================================================================== */
.mega-ul-card {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 28px 40px;
  padding-top: 13px;
}
.mega-ul-card li {
  width: auto;
  flex: 0 0 auto;
  margin-bottom: 0;
}
.mega-card {
  display: flex;  
  align-items: center;
  text-align: center;
}
.mega-thumb {
  display: block;
  background: #fff;
  width: 128px;
  height: 120px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 8px;
  overflow: hidden;
  background: #f7f8fa;
  margin-bottom: 10px;
  transition: border-color .3s, box-shadow .3s;
}
.mega-thumb img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.mega-card:hover .mega-thumb {
  border-color: #01b753;
  box-shadow: 0 8px 20px rgba(1, 183, 83, 0.12);
}
.mega-name {  
  font-size: 15px;
  line-height: 1.4;
  transition: color .3s;
}
.mega-card:hover .mega-name {
  color: #01b753;
}

/* ==================================================================
   下拉右侧：竖排无图 — Service / About
   ================================================================== */
.mega-ul-col {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding-top: 13px;
}
.mega-ul-col li {
  width: auto;
  margin-bottom: 13px;
}
.mega-ul-col li:last-child {
  margin-bottom: 0;
}

/* ==================================================================
   手机端折叠式导航面板（≤1024px）
   - 默认收起（left:-100%），点击汉堡按钮后滑入（.show）
   - 配合 header.html 的 .nav-mask 遮罩与 global.js 的交互逻辑
   ================================================================== */
@media (max-width: 1024px) {

  /* 展开时锁定背景滚动，防止菜单下方内容跟着滚动 */
  body.nav-lock {
    overflow: hidden;
  }

  /* ---- 遮罩层：默认隐藏，导航展开时淡入 ---- */
  .nav-mask {
    display: block;
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.45);
    z-index: 990;
    opacity: 0;
    visibility: hidden;
    transition: opacity .3s ease, visibility .3s ease;
    -webkit-transition: opacity .3s ease, visibility .3s ease;
    /* 阻止遮罩自身产生点击穿透 */
    touch-action: none;
  }
  .nav-mask.show {
    opacity: 1;
    visibility: visible;
  }

  /* ---- 汉堡按钮：≥44px 触控区域 ---- */
  .m-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    margin: 0;
    border: 0;
    background: transparent;
    cursor: pointer;
    /* 视觉中心仍靠右，但整体点击热区扩大到 44×44 */
    right: 4px;
    -webkit-tap-highlight-color: transparent;
  }
  .m-btn:focus-visible {
    outline: 2px solid #01b753;
    outline-offset: 2px;
    border-radius: 4px;
  }

  /* ---- 导航面板：右侧抽屉式滑入，限宽避免大屏平板过宽 ---- */
  header .nav {
    position: fixed;
    left: auto;
    right: 0;
    top: 0;
    width: 82%;
    max-width: 360px;
    height: 100vh;
    height: 100dvh;              /* 移动端浏览器动态视口高度，避免地址栏遮挡 */
    padding: 70px 0 90px;        /* 顶部让出 header 高度，底部让出 m-footer */
    background: #fff;
    box-shadow: -8px 0 30px rgba(0, 0, 0, 0.12);
    z-index: 995;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    transform: translateX(100%);
    -webkit-transform: translateX(100%);
    transition: transform .35s cubic-bezier(0.4, 0, 0.2, 1);
    -webkit-transition: transform .35s cubic-bezier(0.4, 0, 0.2, 1);
  }
  header .nav.show {
    transform: translateX(0);
    -webkit-transform: translateX(0);
  }

  /* 收起状态下不接收键盘焦点，展开后恢复（可访问性） */
  header .nav[aria-hidden="true"] {
    visibility: hidden;
  }
  header .nav.show {
    visibility: visible;
  }

  /* ---- 移动端栏目项：整行可点，触控高度 ≥48px ---- */
  header .nav ul.pnav > li {
    padding: 0 20px;
    border-bottom: 1px solid #f2f2f2;
  }
  header .nav ul.pnav > li > a {
    display: flex;
    align-items: center;
    min-height: 48px;
    font-size: 15px;
    font-weight: 600;
    color: #181818;
    line-height: 1.4;
    padding: 8px 0;
    word-break: break-word;
  }
  /* 二级/三级子项：缩进 + 次级字号，触控高度仍 ≥44px */
  header .nav ul.pnav .navlist {
    padding-bottom: 8px;
  }
  header .nav ul.pnav .navlist > li > a,
  header .nav ul.pnav .navlist p a {
    display: flex;
    align-items: center;
    min-height: 44px;
    font-size: 14px;
    font-weight: 400;
    color: #555;
    line-height: 1.4;
    padding: 6px 0 6px 14px;
    word-break: break-word;
  }
  header .nav ul.pnav .navlist > li > a:hover,
  header .nav ul.pnav .navlist p a:hover {
    color: #01b753;
  }
}

/* 平板区间（481–1024px）：抽屉略宽，字号保持可读 */
@media (min-width: 481px) and (max-width: 1024px) {
  header .nav {
    width: 60%;
    max-width: 420px;
  }
}

/* 手机区间（≤480px）：抽屉接近全宽 */
@media (max-width: 480px) {
  header .nav {
    width: 88%;
    max-width: none;
    padding-top: 62px;
  }
  header .nav ul.pnav > li {
    padding: 0 16px;
  }
}

/* 桌面端（≥1025px）隐藏遮罩，避免残留影响点击 */
@media (min-width: 1025px) {
  .nav-mask {
    display: none !important;
  }
}

/* 已废弃的历史栏目样式已清理 */