@charset "UTF-8";
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  list-style: none;
  font-family: "微软雅黑"; }

img {
  max-width: 100%; }

a {
  text-decoration: none; }

@keyframes show {
  from {
    height: 0;
    transition: all 2s; }
  to {
    height: 345px;
    transition: all 2s; } }
@keyframes product {
  from {
    opacity: 0;
    transition: all 0.5s; }
  to {
    opacity: 1;
    transition: all 0.5s; } }
.nav_top {
  width: 100%;
  height: 92px;
  background: #fff;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 999; }
  .nav_top .nav_top_01 {
    width: 100%;
    height: 32px;
    background: #373845; }
    .nav_top .nav_top_01 .top_main {
      width: 1200px;
      height: 32px;
      margin: 0 auto;
      display: flex;
      justify-content: flex-end; }
      .nav_top .nav_top_01 .top_main a {
        box-sizing: border-box;
        padding: 0 15px;
        color: #999;
        text-align: center;
        line-height: 32px;
        font-size: 12px; }
  .nav_top .nav_main {
    min-width: 1200px;
    width: 1200px;
    height: 60px;
    margin: 0 auto;
    display: flex;
    justify-content: flex-start;
    align-items: center; }
    .nav_top .nav_main .logo {
      height: 30px;
      cursor: pointer; }
    .nav_top .nav_main .nav_tab {
      width: 780px;
      height: 60px;
      display: flex;
      justify-content: center;
      align-items: center;
      margin-left: 55px; }
      .nav_top .nav_main .nav_tab .nav_box {
        width: 120px;
        height: 60px;
        position: relative;
        text-align: center; }
        .nav_top .nav_main .nav_tab .nav_box .nav_content {
          font-size: 14px;
          padding-bottom: 16px;
          cursor: pointer;
          line-height: 60px;
          color: #666; }
        .nav_top .nav_main .nav_tab .nav_box .nav_content:hover {
          border-bottom: 2px solid #860e10; }
        .nav_top .nav_main .nav_tab .nav_box .nav_slide {
          position: absolute;
          top: 60px;
          width: 120px;
          height: 0px;
          text-align: center;
          z-index: 4;
          overflow: hidden; }
          .nav_top .nav_main .nav_tab .nav_box .nav_slide li {
            width: 120px;
            height: 35px;
            text-align: center;
            line-height: 35px;
            font-size: 14px;
            cursor: pointer; }
            .nav_top .nav_main .nav_tab .nav_box .nav_slide li a {
              color: #000; }
          .nav_top .nav_main .nav_tab .nav_box .nav_slide li:hover a {
            color: #b01f23; }
      .nav_top .nav_main .nav_tab .nav_box:hover .nav_slide {
        background: rgba(255, 255, 255, 0.7); }
    .nav_top .nav_main .tel {
      font-size: 18px;
      color: #b01f23; }
  .nav_top .nav_fuceng {
    width: 100%;
    height: 0px;
    position: absolute;
    z-index: 3;
    background: rgba(255, 255, 255, 0.8); }

.nav_top:hover .nav_slide {
  animation: show 2s both; }
.nav_top:hover .nav_fuceng {
  /*animation: show 2s both;*/ }

/*# sourceMappingURL=header.css.map */