html {
  --header-height: 90px;
}
@media (max-width: 1600px) {
  html {
    --header-height: 90px;
  }
}
@media (max-width: 1200px) {
  html {
    --header-height: calc(1rem + 0px);
  }
}
/**头部导航**/
.header-sticky .header-box {
  background-color: #ffffff;
}
.header-box {
  --header-wrap-width: var(--wrap-1600-width);
  position: static;
  top: 0;
  z-index: 9;
  width: 100%;
  height: var(--header-height);
  opacity: 1;
  background: transparent;
  transition: transform 0.4s ease, opacity 0.3s, background 0.3s;
  left:0;
}
.header-box::after {
  content: '';
  display: block;
  position: static;
  left: 0;
  bottom: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  width: 100%;
  opacity: 0;
  pointer-events: none;
}
.header-box .form-type-a {
  --form-width: 200px;
  --h: 48px;
  --form-color: var(--color);
  z-index: 2;
  left: 0;
  top: 100%;
  border-top: 0 none;
  width: var(--form-width);
  padding: 0;
  background: transparent;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0);
  transition: opacity 0.5s, margin 0.5s;
}
.header-box .form-type-a .form {
  position: relative;
  width: 100%;
}
.header-box .form-type-a .form::before {
  opacity: 0.4;
}
.header-box:hover {
  background-color: #ffffff;
}
.header-box:hover #header {
  --color: #333333;
}
.header-box:hover #header .logo-box .imgs .i {
  opacity: 0;
}
.header-box:hover #header .logo-box .imgs .i-h {
  opacity: 1;
}
.search-show .header-box .form-type-a {
  margin-top: 0;
  opacity: 1;
  pointer-events: auto;
}

.menu-block{ float: right }
#header {
  --h: var(--header-height);
  --color: #000;
  --hover-color: var(--main-color);
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
  background-color:#fff;
  color: var(--color);
  transition: all 0.4s ease;
}
#header .logo-box {
  position: relative;
  z-index: 2;
  height: var(--h);
}
#header .logo-box .imgs {
  position: relative;
}
#header .logo-box .imgs img {
  display: block;
  width: 192px;
  transition: height 0.3s, opacity 0.3s;
}
#header .logo-box .imgs .i {
  opacity: 1;
}
#header .logo-box .imgs .i-h {
  position: static;
  left: 0;
  top: 0;
  opacity: 0;
}
#header .search-check {
  --size: 20px;
  --fill: var(--color);
}
#header .search-check:hover {
  --fill: var(--main-color);
}
@media (min-width: 1201px) {
  .header-sticky {
    padding-top: var(--header-height);
  }
  #header .logo-box .imgs img {
    width: 500px;
  }
  #header .menu-block .wrap-div {
    width: auto;
  }
  #header .menu-block .menu {
    --i-h: var(--h);
    --pad: calc(var(--wrap-width)*0.016);
    padding-right: var(--pad);
    font-size: var(--fs16);
    line-height: var(--i-h);
    color: var(--color);
  }
  #header .menu-block .menu .menu-son {
    position: relative;
    background: transparent;
  }
  #header .menu-block .menu .menu-son:hover .menu-title,
  #header .menu-block .menu .menu-son.on .menu-title {
    color: var(--main-color);
  }
  #header .menu-block .menu .menu-son:hover .menu-title::before,
  #header .menu-block .menu .menu-son.on .menu-title::before {
    left: 0;
    width: 100%;
  }
  #header .menu-block .menu .menu-son:hover .menu-title .sub-icon {
    top: 50%;
    opacity: 1;
  }
  #header .menu-block .menu .menu-son:hover .sub-block {
    margin-top: 0;
    opacity: 1;
    pointer-events: auto;
  }
  #header .menu-block .menu .menu-title {
    position: relative;
    overflow: hidden;
    padding: 0 var(--pad);
    text-align: center;
    transition: all 0.3s;
  }
  #header .menu-block .menu .menu-title::before {
    content: "";
    display: none;
    position: static;
    left: 50%;
    bottom: 0;
    width: 0;
    height: 2px;
    background-color: var(--main-color);
    transition: all 0.3s;
  }
  #header .menu-block .menu .menu-title .sub-icon {
    content: "";
    display: block;
    margin-top: 0.86em;
    position: static;
    left: 0;
    top: 40%;
    opacity: 0;
    width: 100%;
    height: 10px;
    background: url(../images/menu-icon.png) no-repeat center / contain;
    transition: all 0.3s;
  }
  #header .menu-block .menu .menu-title-word {
    position: relative;
  }
  #header .menu-block .sub-block {
    --flexpad: 40px;
    display: block!important;
    margin-top: 10px;
    position: static;
    left: 50%;
    top: 100%;
    transform: translateX(-50%);
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.3);
    background: #ffffff;
    border-radius: 5px;
    min-width: 100%;
    word-break: keep-all;
    white-space: nowrap;
    font-size: 16px;
    line-height: 1.4em;
    color: #666666;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s, margin 0.5s;
  }
  #header .menu-block .sub-block .flex-box {
    display: flex;
    padding-left: var(--flexpad);

    gap: var(--flexpad);
  }
  #header .menu-block .sub-block .img-box {
    display: block;
    width: 450px;
  }
  #header .menu-block .sub-block .img-box::before {
    padding-top: 75%;
  }
  #header .menu-block .sub-block .a-list {
    border-right: 1px solid #cccccc;
    padding-right: var(--flexpad);
  }
  #header .menu-block .sub-block .a-list .a {
    display: block;
    border-bottom: 1px solid #eeeeee;
    min-width: 7.4em;
    padding: 0.7em 0;
    background: transparent;
  }
  #header .menu-block .sub-block .a-list .a:hover {
    border-bottom-color: var(--main-color);
    color: var(--main-color);
  }
  #header .phone-menu {
    display: none;
  }
  #header .phone-show-block {
    display: none;
  }
  .small-header {
    --header-height: 80px;
  }
  .small-header .header-box {
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    box-shadow: 0px 3px 5px 0px rgba(0, 0, 0, 0.1);
  }
  .small-header .header-box #header .logo-box .imgs img {
    width: 350px;
  }
  .small-header .header-box #header .menu-block .menu {
    font-size: 16px;
  }
  .small-header.show-header .header-box {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .header-type-a .header-box {
    background-color: #ffffff;
    box-shadow: 0px 3px 5px 0px rgba(0, 0, 0, 0.1);
  }
  .header-type-a .header-box #header {
    --color: #333333;
  }
  .header-type-a .header-box #header .logo-box .imgs .i {
    opacity: 0;
  }
  .header-type-a .header-box #header .logo-box .imgs .i-h {
    opacity: 1;
  }
}
@media (min-width: 1201px) and (max-width: 1600px) {
  #header .logo-box .imgs img {
    width: 450px;
  }
  #header .menu-block .menu {
    font-size: 17px;
  }
}
@media (min-width: 1201px) and (max-width: 1300px) {
   #header .logo-box .imgs img {
    width: 400px;
  }
  #header .menu-block .menu {
    font-size: 16px;
  }
}
.small-header .header-box {
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
  background-color: #ffffff;
}
.small-header .header-box #header .logo-box .imgs .i {
  opacity: 0;
}
.small-header .header-box #header .logo-box .imgs .i-h {
  opacity: 1;
}
.phone-menu {
  --background-color: var(--main-color);
  display: flex;
  position: relative;
  width: 44px;
  height: 30px;
  z-index: 1000;
  float: right;
  top: 0.1rem;
}
.phone-menu .phone-menu-i {
  display: block;
  position: static;
  top: 50%;
  left: 0%;
  margin-top: -1px;
  transform: rotate(0);
  -webkit-transform: rotate(0);
  -moz-transform: rotate(0);
  -ms-transform: rotate(0);
  -o-transform: rotate(0);
  width: 100%;
  height: 2px;
  background-color: var(--background-color);
  opacity: 1;
  transition: all 0.3s;
}
.phone-menu .phone-menu-i.i1 {
  margin-top: -6px;
}
.phone-menu .phone-menu-i.i3 {
  margin-top: 4px;
}
.menu-show .phone-menu .phone-menu-i {
  background-color: var(--background-color);
}
.menu-show .phone-menu .phone-menu-i.i1 {
  margin-top: -1px;
  transform: rotate(45deg);
  -webkit-transform: rotate(45deg);
  -moz-transform: rotate(45deg);
  -ms-transform: rotate(45deg);
  -o-transform: rotate(45deg);
}
.menu-show .phone-menu .phone-menu-i.i2 {
  width: 100%;
  opacity: 0;
}
.menu-show .phone-menu .phone-menu-i.i3 {
  margin-top: -1px;
  transform: rotate(-45deg);
  -webkit-transform: rotate(-45deg);
  -moz-transform: rotate(-45deg);
  -ms-transform: rotate(-45deg);
  -o-transform: rotate(-45deg);
}
@media (max-width: 1200px) {

  .phone-menu {
    display: flex;
    position: relative;
    width: 0.44rem;
    height: 0.3rem;
  }
  .phone-menu .phone-menu-i {
    margin-top: -0.02rem;
    border-radius: 0.02rem;
    height: 0.04rem;
  }
  .phone-menu .phone-menu-i.i1 {
    margin-top: -0.15rem;
  }
  .phone-menu .phone-menu-i.i2 {
    margin-top: -0.02rem;
    width: 60%;
  }
  .phone-menu .phone-menu-i.i3 {
    margin-top: 0.11rem;
  }
}
@media (max-width: 1200px) {
  .header-box {
    position: sticky;
  }
  #header {
    --color: #333;
  }
  #header .logo-box {
    height: 1rem;
  }
  #header .logo-box .imgs img {
    width: 4rem;
  }
  #header .logo-box .imgs .i {
    opacity: 0;
  }
  #header .logo-box .imgs .i-h {
    opacity: 1;
  }
  #header .menu-block {
    position: static;
    z-index: 9;
    left: 0;
    top: var(--header-height);
    transform: translateX(-100%);
    width: 100%;
    height: calc(100vh - var(--header-height));
    padding-bottom: 1.5rem;
    opacity: 0;
    overflow-y: auto;
    background: #ffffff;
    pointer-events: none;
    transition: opacity 0.4s, transform 0.8s ease;
  }
  #header .menu-block::before {
    content: '';
    display: block;
    position: static;
    left: 0;
    top: 0;
    pointer-events: none;
    width: 100%;
    height: 5px;
    box-shadow: 3px 4px 5px 0px rgba(236, 236, 236, 0.75);
  }
  #header .menu-block .menu {
    --l-h: 0.84rem;
    --default-color: #666666;
    padding-top: 0.2rem;
    flex-wrap: wrap;
    color: var(--default-color);
  }
  #header .menu-block .menu .menu-son {
    border-bottom: 1px solid #d3d3d3;
    width: 100%;
  }
  #header .menu-block .menu .menu-son .menu-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0;
    font-size: 0.28rem;
    line-height: var(--l-h);
  }
  #header .menu-block .menu .menu-son .menu-title .sub-icon {
    position: relative;
    height: var(--l-h);
    width: 0.62rem;
  }
  #header .menu-block .menu .menu-son .menu-title .sub-icon::before,
  #header .menu-block .menu .menu-son .menu-title .sub-icon::after {
    content: '';
    display: block;
    position: static;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    border-radius: 0.015rem;
    background: #333333;
    transition: width 0.3s, height 0.3s, background 0.3s;
  }
  #header .menu-block .menu .menu-son .menu-title .sub-icon::before {
    width: 0.22rem;
    height: 0.03rem;
  }
  #header .menu-block .menu .menu-son .menu-title .sub-icon::after {
    width: 0.03rem;
    height: 0.22rem;
  }
  #header .menu-block .menu .menu-son .menu-title.on {
    color: var(--main-color);
  }
  #header .menu-block .menu .menu-son .menu-title.on .sub-icon::before,
  #header .menu-block .menu .menu-son .menu-title.on .sub-icon::after {
    background: var(--main-color);
  }
  #header .menu-block .menu .menu-son .menu-title.on .sub-icon::after {
    height: 0;
  }
  #header .menu-block .menu .sub-block {
    color: #666666;
    display: none;
    font-size: 0.26rem;
    line-height: calc(var(--l-h) - 0.2rem);
  }
  #header .menu-block .menu .sub-block .a-li {
    border-top: 1px solid #eeeeee;
    width: 100%;
    padding: 0.1rem 0 0.1rem 0.25rem;
  }
  #header .menu-block .menu .sub-block .a-li .a {
    display: block;
    padding: 0;
  }
  #header .search-check {
    --size: 0.34rem;
  }
  #header .form-type-a {
    --h: 0.7rem;
    --color: #999;
    transform: translate(0, -100%);
    position: static;
    z-index: 9;
    left: 0;
    top: 100%;
    border-top: 1px solid #eeeeee;
    border-bottom: 1px solid #eeeeee;
    width: 100%;
    padding: 0.25rem 0;
    background-color: #ffffff;
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s, opacity 0.3s;
  }
  #header .form-type-a .form {
    width: var(--wrap-1600-width);
  }
  #header .phone-menu {
    margin-left: 0.3rem;
  }
  .menu-show #header {
    box-shadow: 3px 4px 5px 0px rgba(236, 236, 236, 0.75);
    background-color: #ffffff;
  }
  .menu-show #header .logo-box .imgs .i {
    opacity: 0;
  }
  .menu-show #header .logo-box .imgs .i-h {
    opacity: 1;
  }
  .menu-show #header .menu-block {
    transform: translateX(0);
    opacity: 1;
    pointer-events: auto;
  }
  .search-show #header .form-type-a {
    transform: translate(0, 0%);
    opacity: 1;
    pointer-events: auto;
  }
}