:root {
  --white: #fff;
}
html {
  height: 100%;
  font-size: 41.4px;
}
body {
  height: 100%;
}
body,
textarea,
select,
input,
button {
  background-color: var(--white);
  font-family: Arial, Helvetica, sans-serif;
  color: var(--white);
}

.flex {
  display: flex;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}
.justify-around {
  justify-content: space-around;
}
.flex-col {
  flex-direction: column;
}
.w-full {
  width: 100%;
}
.h-full {
  height: 100%;
}
.bg-cover {
  background-repeat: no-repeat;
  background-position: center center;
  background-size: cover;
}
.bg-contain {
  background-repeat: no-repeat;
  background-position: center center;
  background-size: contain;
}
/* .bg-center {
  background-repeat: no-repeat;
  background-position: center center;
  background-size: auto 100%;
} */
/* 图片高度和盒子高度一样，向右偏移 */
.bg-left-center {
  background-repeat: no-repeat;
  background-position: 0 center;
  background-size: auto 100%;
}
/* background-attachment: fixed; */
.bg-fixed {
  background-attachment: fixed;
}
.m-auto {
  margin: 0 auto;
}

/* text-align: center; */
.text-center {
  text-align: center;
}
.pc_container {
  height: 100%;
}
.pc_max-width {
  max-width: 1300px;
  margin: 0 auto;
}
.pc_container .nav {
  height: 95px;
  /* margin-top: 28px; */
}

.pc_container .nav .logo {
  width: 140px;
  height: 38.76px;
}

.pc_container .nav .nav-list ul .nav-line {
  width: 1px;
  height: 13px;
  margin: 0 35px;
  background: var(--white);
}
.pc_container .nav .nav-list ul li {
  position: relative;
}
.pc_container .nav .nav-list ul li::after {
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  transform: translateX(-50%);
  transition: all 0.3s ease-in-out;
  background: var(--white);
  content: '';
}
.pc_container .nav .nav-list ul li.active::after,
.pc_container .nav .nav-list ul li:hover::after {
  position: absolute;
  bottom: 0;
  left: 51%;
  width: 17px;
  height: 2px;
  transform: translateX(-50%);
  background: var(--white);
  content: '';
}
.pc_container .nav .nav-list ul li.active a {
  font-weight: bold;
}

.pc_container .nav .nav-list ul li a {
  font-size: 16px;
  font-weight: 500;
  line-height: 32px;
  color: var(--white);
}
/* 移动端公共 */
.m_container {
  box-sizing: border-box;
  padding: 0 0.48rem;
}

.m_container header {
  width: 100%;
  margin-top: 0.43rem;
}

.m_container header .logo {
  display: block;
  width: 3.765rem;
  height: 1.035rem;
}

.m_container header .menu {
  width: 0.96rem;
  height: 0.96rem;
}
.m_container .mask_menu {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 999;
  display: none;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.66);
  backdrop-filter: blur(0.27rem);
}

.m_container .mask_menu .header {
  box-sizing: border-box;
  margin-top: 0.43rem;
  padding: 0 0.48rem;
}

.m_container .mask_menu .header .logo {
  display: block;
  width: 3.765rem;
  height: 1.035rem;
}

.m_container .mask_menu .header .close {
  width: 0.96rem;
  height: 0.96rem;
}
.m_container .mask_menu .menu_list {
  justify-content: space-around;
  height: 9.39rem;
  margin-top: 3.09rem;
}
.m_container .mask_menu .menu_list a {
  font-size: 0.43rem;
  font-weight: bold;
  line-height: 0.43rem;
  color: var(--white);
}
/* 移动端end */

.pc_container {
  display: none;
}

.m_container {
  display: none;
}

@media screen and (max-width: 1000px) {
  .pc_container {
    display: none;
  }
  .m_container {
    display: flow-root;
  }
}
@media screen and (min-width: 1000px) {
  .pc_container {
    display: block;
  }
  .m_container {
    display: none;
  }
}