@media (max-width: 768px) {
  html {
    font-size: calc(100vw / 18);
  }
}
@media (min-width: 768px) and (max-width: 1358.99px) {
  html {
    font-size: calc(100vw / 19.5);
  }
}
@media (min-width: 1359px) and (max-width: 1401.99px) {
  html {
    font-size: calc(100vw / 19.2);
  }
}
@media (min-width: 1402px) and (max-width: 1681.99px) {
  html {
    font-size: calc(100vw / 18.8);
  }
}
@media (min-width: 1682px) and (max-width: 1921.99px) {
  html {
    font-size: calc(100vw / 19.2);
  }
}
@media (min-width: 1922px) and (max-width: 4000px) {
  html {
    font-size: calc(100vw / 25.6);
  }
}
/* 手机 */
@media (max-width: 768px) {
  .header {
    display: none;
  }
  .head {
    display: block;
    background-color: #fff;
    width: 100%;
    height: 2rem;
    position: fixed;
    z-index: 99999;
  }
  .head .w-750 {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 3% 5% 1%;
    margin: 0 auto;
  }
  .head .w-750 .indexheaderleft {
    display: flex;
    align-items: center;
    width: 100%;
  }
  .head .w-750 .indexheaderleft .logo {
    display: flex;
    align-items: center;
    width: 100%;
  }
  .head .w-750 .indexheaderleft .logo .cimgbox {
    display: flex;
    align-items: center;
  }
  .head .w-750 .indexheaderleft .logo .cimgbox img {
    width: 32%;
    height: 100%;
    object-fit: cover;
    margin-top: 0%;
  }
  .head .w-750 .indexheaderleft .logo .cimgbox .logo_w {
    display: block;
  }
  .head .w-750 .indexheaderleft .logo .cimgbox .logo_bl {
    display: none;
  }
  .head .w-750 .indexheaderleft .rightbox {
    display: none;
  }
  .head .w-750 .indexheaderleft .rightbox .cnav {
    position: absolute;
    z-index: 999;
    top: 1.66666667rem;
    left: 0;
    width: 100%;
    height: 0;
    line-height: 2.66666667rem;
    color: #333;
    background: #fff;
    overflow-y: auto;
    transition: 0.3s;
    text-align: left;
  }
  .head .w-750 .indexheaderleft .rightbox .cnav .daohangnavs {
    border-top: 0.06666667rem solid #f1f1f1;
    padding: 0 6%;
  }
  .head .w-750 .indexheaderleft .rightbox .cnav .daohangnavs .ctitlebox {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  .head .w-750 .indexheaderleft .rightbox .cnav .daohangnavs .ctitlebox .cn1 {
    display: block;
    width: 90%;
    color: #333;
    font-size: 0.53333333rem;
  }
  .head .w-750 .indexheaderleft .rightbox .cnav .daohangnavs .ctitlebox .svgffg {
    width: 0.53333333rem;
    height: 0.53333333rem;
    transition: all 0.3s;
  }
  .head .w-750 .indexheaderleft .rightbox .cnav .daohangnavs .ctitlebox.on .svgffg {
    transform: rotate(90deg);
  }
  .head .w-750 .indexheaderleft .rightbox .cnav .daohangnavs .dropdownBox {
    display: none;
  }
  .head .w-750 .indexheaderleft .rightbox .cnav .daohangnavs .dropdownBox .dropli {
    border-top: 0.06666667rem solid #f1f1f1;
    padding: 0 6%;
  }
  .head .w-750 .indexheaderleft .rightbox .cnav .daohangnavs .dropdownBox .dropli a {
    color: #333;
    font-size: 0.53333333rem;
  }
  .head .w-750 .indexheaderleft .rightbox .cnav .daohangnavs .dropdownBox .dropli:last-child {
    padding-bottom: 0;
  }
  .head .w-750 .indexheaderleft .rightbox .cnav .daohangnavs .dropdownBox.on {
    display: block;
  }
  .head .w-750 .indexheaderleft .c-switch {
    position: relative;
    display: block;
    width: 1rem;
    height: 0.66666667rem;
    cursor: pointer;
  }
  .head .w-750 .indexheaderleft .c-switch i {
    position: absolute;
    left: 0;
    height: 0.14666667rem;
    width: 100%;
    background: #1a74c5;
    transition: all 0.3s;
  }
  .head .w-750 .indexheaderleft .c-switch i:nth-child(1) {
    top: 0;
  }
  .head .w-750 .indexheaderleft .c-switch i:nth-child(2) {
    top: 50%;
    margin-top: -0.02rem;
  }
  .head .w-750 .indexheaderleft .c-switch i:nth-child(3) {
    bottom: -0.07333333rem;
  }
  .c-style2 {
    background-color: #fff !important;
    box-shadow: 0 0 0.66666667rem 0 #33333314;
    position: fixed;
  }
  .c-style2 .w-750 {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 3.5% 5% 0;
    margin: 0 auto;
  }
  .c-style2 .w-750 .indexheaderleft {
    display: flex;
    width: 100%;
  }
  .c-style2 .w-750 .indexheaderleft .logo {
    display: flex;
    align-items: center;
    width: 100%;
  }
  .c-style2 .w-750 .indexheaderleft .logo .cimgbox {
    display: flex;
    align-items: center;
  }
  .c-style2 .w-750 .indexheaderleft .logo .cimgbox img {
    width: 18%;
    height: 100%;
    object-fit: cover;
    margin-top: 0%;
  }
  .c-style2 .w-750 .indexheaderleft .logo .cimgbox .logo_w {
    display: none;
  }
  .c-style2 .w-750 .indexheaderleft .logo .cimgbox .logo_bl {
    display: block;
  }
  .c-style2 .w-750 .indexheaderleft .rightbox {
    display: flex;
    align-items: center;
  }
  .c-style2 .w-750 .indexheaderleft .rightbox .cnav {
    height: 100vh;
  }
  .c-style2 .w-750 .indexheaderleft .c-switch {
    position: relative;
    display: block;
    margin: 0;
    width: 0.66666667rem;
    height: 0.66666667rem;
    cursor: pointer;
  }
  .c-style2 .w-750 .indexheaderleft .c-switch i {
    position: absolute;
    left: 0;
    height: 0.13333333rem;
    width: 100%;
    background: #1a74c5;
    transition: all 0.3s;
  }
  .c-style2 .w-750 .indexheaderleft .c-switch i:nth-child(1) {
    top: 50%;
    margin-top: -0.06666667rem;
    -webkit-transform: rotate(45deg);
    transform: rotate(45deg);
  }
  .c-style2 .w-750 .indexheaderleft .c-switch i:nth-child(2) {
    opacity: 0;
  }
  .c-style2 .w-750 .indexheaderleft .c-switch i:nth-child(3) {
    bottom: 50%;
    margin-bottom: -0.0745rem;
    -webkit-transform: rotate(-45deg);
    transform: rotate(-45deg);
  }
  .head.active {
    background-color: #fff;
  }
  .head.active .w-750 .indexheaderleft .logo .cimgbox .logo_w {
    display: none;
  }
  .head.active .w-750 .indexheaderleft .logo .cimgbox .logo_bl {
    display: block;
  }
  .head.active .w-750 .indexheaderleft .sousyuyan .lissd .buhuueeh .icon {
    fill: #000;
  }
  .head.active .w-750 .indexheaderleft .c-switch i {
    background: #1a74c5;
  }
}
/* pc */
@media (min-width: 768px) {
  .head {
    display: none;
  }
  .header {
    background-color: #fff;
    transition: all 0.4s ease-in-out;
    width: 100%;
    position: fixed;
    height: 0.7rem;
    z-index: 9999;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
  }
  .header .w-1517 {
    width: 13.2rem;
    height: 0.7rem;
    padding: 0.09rem 0 0;
    margin: 0 auto;
  }
  .header .w-1517 .logo-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  .header .w-1517 .logo-nav .logo {
    display: block;
    width: 1rem;
    height: 0.52rem;
  }
  .header .w-1517 .logo-nav .logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
  }
  .header .w-1517 .logo-nav .logo .blogo {
    display: block;
  }
  .header .w-1517 .logo-nav .logo .logo_bl {
    display: none;
  }
  .header .w-1517 .logo-nav .nav {
    display: flex;
    align-items: center;
    gap: 0.8rem;
  }
  .header .w-1517 .logo-nav .nav .li {
    position: relative;
  }
  .header .w-1517 .logo-nav .nav .li .zhunav {
    position: relative;
    font-size: 0.2rem;
    color: #000;
    cursor: pointer;
    transition: all 0.5s;
  }
  .header .w-1517 .logo-nav .nav .li .zhunav::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0.4rem;
    width: 100%;
    height: 0.3rem;
  }
  .header .w-1517 .logo-nav .nav .li .zhunav::before {
    content: '';
    position: absolute;
    top: 0.48rem;
    left: 50%;
    width: 0;
    height: 0.02rem;
    background-color: #1a74c5;
    transition: all 0.3s ease;
    transform: translateX(-50%);
  }
  .header .w-1517 .logo-nav .nav .li .csaisnaoi {
    opacity: 0;
    transition: all 0.5s;
    position: absolute;
    z-index: -2;
    top: 0;
    left: -0.24rem;
    width: 1.3rem;
    background-color: #fff;
    pointer-events: none;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    border-radius: 0.12rem;
    padding: 0.1rem 0;
    margin-top: 0.3rem;
  }
  .header .w-1517 .logo-nav .nav .li .csaisnaoi a {
    width: 85%;
    text-align: center;
    font-size: 0.18rem;
    color: #000;
    background-color: #ffffff00;
    line-height: 2.5;
    transition: all 0.5s;
  }
  .header .w-1517 .logo-nav .nav .li .csaisnaoi a:hover {
    background-color: #f5f5f5;
    color: #1a74c5;
    transition: all 0.5s;
  }
  .header .w-1517 .logo-nav .nav .li .csaisnaoi.active {
    top: 100%;
    z-index: 2;
    opacity: 1;
    pointer-events: auto;
    transition: all 0.5s;
  }
  .header .w-1517 .logo-nav .nav .li:hover .zhunav {
    transition: all 0.5s;
  }
  .header .w-1517 .logo-nav .nav .li:hover .zhunav::before {
    width: 100%;
  }
  .header .w-1517 .logo-nav .nav .li.active .zhunav {
    color: #1a74c5;
  }
  .header .w-1517 .logo-nav .nav .li.active .zhunav::before {
    width: 100%;
  }
  .header.active {
    background-color: #fff;
    height: 0.7rem;
    transition: all 0.4s ease-in-out;
    box-shadow: 0 0 0.1rem 0 #33333329;
  }
  .header.active .w-1517 .logo-nav .logo .blogo {
    display: none;
  }
  .header.active .w-1517 .logo-nav .logo .logo_bl {
    display: block;
  }
  .header.active .w-1517 .logo-nav .nav .li .zhunav {
    color: #000;
  }
  .header.active .w-1517 .logo-nav .nav .li.active .zhunav {
    color: #1a74c5;
  }
}
@media (min-width: 768px) and (max-width: 1358.99px) {
  .header .w-1517 .logo-nav .nav {
    gap: 0.7rem;
    width: auto;
  }
  .header .w-1517 .logo-nav .nav .li .zhunav {
    font-size: 0.22rem;
  }
}
@media (min-width: 1359px) and (max-width: 1401.99px) {
  .header .w-1517 .logo-nav .nav {
    gap: 0.7rem;
    width: auto;
  }
  .header .w-1517 .logo-nav .nav .li .zhunav {
    font-size: 0.22rem;
  }
}
@media (min-width: 1402px) and (max-width: 1681.99px) {
  .header .w-1517 .logo-nav .nav .li .zhunav {
    font-size: 0.2rem;
  }
}
@media (min-width: 1682px) and (max-width: 1921.99px) {
  .header .w-1517 .logo-nav .nav .li .zhunav {
    font-size: 0.18rem;
  }
}