:root {
  --color: #cb2531;
  --sub-color: #cb2531;
  --body-bg: #ffffff;
  --footer-bg: #787878;
  --text-color: #333;
  --ccc: #ccc;
  --eee: #eee;
  --white: #fff;
}
body {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-color);
  background-color: var(--body-bg);
  font-family: "微软雅黑", arial, helvetica, sans-serif;
  overflow-x: hidden;
}

body,
html {
  height: 100%;
  position: relative;
}

a {
  color: var(--text-color);
}
button,
span,
input,
div,
div:focus,
button:focus,
span:focus,
input:focus {
  outline: 0 !important;
}
a:hover,
a:focus {
  color: var(--color);
  text-decoration: none;
}

body,
dl,
dt,
dd,
ul,
ol,
li,
pre,
form,
fieldset,
input,
p,
blockquote,
th,
td {
  font-weight: 400;
  margin: 0;
  padding: 0;
}

h1,
h2,
h3,
h4,
h4,
h5 {
  margin: 0;
  padding: 0;
}

table {
  border-collapse: collapse;
}

ol,
ul,
li {
  list-style-image: none;
  list-style-position: outside;
  list-style-type: none;
}

.fl {
  float: left;
}

.fr {
  float: right;
}

.ttu {
  text-transform: uppercase;
}
.my-6 {
  margin-top: 4rem;
  margin-bottom: 4rem;
}

/* logo */
.l_title {
  font-size: 20px;
}
.tell {
  color: var(--color);
  font-size: 18px;
  display: flex;
  justify-content: center;
  align-items: center;
}
.tell p {
  line-height: 1.5;
}
.tell div {
  margin-left: 10px;
}
.w-80 {
  position: relative;
  width: 80%;
  margin-left: auto;
  margin-right: auto;
}
.menu > li {
  position: relative;
  flex: auto;
  text-align: center;
  transition: all 0.4s;
}
.menu > li:hover {
  background-color: #fff;
}
.menu > li:hover > a {
  color: var(--color);
}
.menu > li > a {
  color: #fff;
  font-size: 16px;
  padding: 10px 15px;
  display: inline-block;
  text-transform: uppercase;
  transition: all 0.5s;
}
.search i {
  color: #fff;
  cursor: pointer;
}
.search {
  position: relative;
}
.search .sea {
  position: absolute;
  right: 0;
  top: 100%;
  z-index: 99;
  display: none;
}
.search .sea form {
  display: flex;
  justify-content: space-between;
}
.search form button {
  width: 50px;
  border: 0;
  float: right;
}
.search form input {
  height: 35px;
  border: 1px solid #ccc;
  padding-left: 10px;
  line-height: 35px;
}
.menu_drop {
  position: absolute;
  left: 0;
  min-width: 100%;
  white-space: nowrap;
  background-color: var(--body-bg);
  display: none;
  padding: 4px 0;
  z-index: 99;
  box-shadow: 0 0 8px rgba(0, 0, 0, 0.2);
}

.menu_drop li a {
  color: var(--text-color);
  display: block;
  text-align: center;
  line-height: 2;
  transition: all 0.5s;
}

.menu_drop li:hover a {
  background-color: var(--color);
  color: var(--body-bg);
}

.swiper-pagination span {
  width: 12px;
  height: 12px;
}
.mySwiper .swiper-button-prev:after,
.mySwiper .swiper-button-next:after {
  color: var(--color);
}
.mySwiper .swiper-pagination-bullet-active {
  background-color: var(--color);
}

/* 右边 */
.side_kefu {
  display: none;
  position: fixed;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: 99;
}

.side_kefu li {
  position: relative;
  margin-bottom: 5px;
}

.side_kefu li i {
  font-size: 20px;
}

.side_kefu li.toTop {
  cursor: pointer;
}

.side_kefu li.toTop i {
  font-size: 24px;
}

.side_kefu li .side_kefu_con {
  position: absolute;
  background-color: var(--body-bg);
  border: 1px solid var(--ccc);
  border-radius: 5px;
  right: 0;
  top: 0;
  padding: 5px 10px;
  transition: all 0.5s;
  transform: translateX(100%);
  z-index: -1;
}

.side_kefu li:hover .side_kefu_con {
  transform: translateX(-50px);
}

.side_kefu_con:after {
  content: "";
  display: inline-block;
  width: 10px;
  height: 10px;
  border: 1px solid var(--ccc);
  border-color: transparent var(--ccc) var(--ccc) transparent;
  -webkit-transform: rotate(-45deg);
  transform: rotate(-45deg);
  position: absolute;
  right: -6px;
  top: 10px;
  background-color: var(--body-bg);
}

.side_kefu li span {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  background-color: var(--color);
  color: var(--body-bg);
}

@media (min-width: 1200px) {
  .container {
    width: 1200px;
  }
}
@media (max-width: 1200px) {
  .my-6 {
    margin-top: 1.5rem;
    margin-bottom: 1.5rem;
  }
}
.container {
  max-width: 1200px;
}
.menu_bg {
  background: var(--color);
}

/* title */
.title {
  margin-top: 3vw;
  margin-bottom: 1vw;
}
.title h2 {
  background: url(../images/title.jpg) no-repeat center;
  font-size: 50px;
  font-weight: bold;
  position: relative;
}
.title h2:after {
  display: block;
  content: "";
  position: absolute;
  width: 240px;
  height: 25px;
  left: 50%;
  transform: translateX(-50%);
  background: url(../images/title1.png) no-repeat center;
}
.title p {
  display: inline-block;
  padding: 5px 3vw;
  border-radius: 8px;
  position: relative;
  background-color: var(--color);
  color: #fff;
  font-size: 23px;
  margin-bottom: 2vw;
  margin-top: 1.5vw;
}
.title p:after {
  position: absolute;
  display: block;
  content: "";
  width: 0;
  height: 0;
  left: 50%;
  transform: translateX(-50%);
  bottom: -20px;
  border-top: 10px solid var(--color);
  border-left: 10px solid transparent;
  border-bottom: 10px solid transparent;
  border-right: 10px solid transparent;
}

/* youshi */
.ys_top {
  width: 100%;
  height: 147px;
  background: url(../images/ys_a.jpg) no-repeat center;
}
.ysb {
  width: 100%;
  height: 205px;
  background: url(../images/ysb.jpg) no-repeat center;
}
.ys_top {
  position: relative;
  z-index: 99;
}
.ys_mid {
  background: url(../images/ys_bg.jpg) no-repeat center;
  background-size: cover;
}
.ys_mid_con {
  width: 90%;
  margin: 0 auto;
  margin-top: 3vw;
}
.ys_mid_con li {
  display: flex;
  justify-content: space-between;
  margin-bottom: 2vw;
  align-items: center;
}
.ys_mid_r,
.ys_mid_l {
  flex: 0 0 45%;
  width: 45%;
}
.ys_mid_t {
  display: flex;
}
.ys_mid_t span {
  width: 83px;
  height: 75px;
  background: url(../images/ys_t.png) no-repeat center;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 48px;
  font-weight: bold;
  margin-right: 10px;
}
.ys_mid_t_a .en {
  text-transform: uppercase;
  font-size: 18px;
}
.ys_mid_t_a .cn {
  font-size: 30px;
  line-height: 1;
}
.ys_mid_m {
  font-size: 18px;
  margin: 15px 0;
}

/* products */
.pro_cate,
.pro_wrapper {
  display: flex;
  margin-left: -15px;
  margin-right: -15px;
  flex-wrap: wrap;
  margin-bottom: 2vw;
}
.pro_cate li {
  padding-left: 15px;
  padding-right: 15px;
  flex: 0 0 25%;
  width: 25%;
  text-align: center;
  line-height: 45px;
  font-size: 18px;
  margin-bottom: 15px;
}
.pro_cate li a {
  color: #fff;
  background-color: #535353;
  color: #fff;
  display: block;
  transition: all 0.5s;
}
.pro_cate li a:hover {
  background-color: var(--color);
}
.pro_wrapper li {
  flex: 0 0 33.333333%;
  width: 33.333333%;
  padding-left: 15px;
  padding-right: 15px;
  margin-bottom: 20px;
}
.pro_wrapper li p {
  font-size: 16px;
  margin-top: 15px;
  margin-bottom: 15px;
  text-decoration: underline;
  font-weight: bold;
}

/* cases */
.cases_bg {
  background: url(../images/case_bg.jpg) no-repeat center;
  color: #fff;
  padding: 2vw 0;
  padding-bottom: 4vw;
}
.partner_list {
  display: flex;
  margin-left: -15px;
  margin-right: -15px;
  flex-wrap: wrap;
}
.partner_list li {
  width: 16.6666666%;
  flex: 0 0 16.6666666%;
  margin-bottom: 30px;
  margin-left: 1vw;
  margin-right: 1vw;
}

/* partner */
.partner_bg {
  background: url(../images/partner_bg.jpg) no-repeat center;
  color: #fff;
  padding: 2vw 0;
  padding-bottom: 4vw;
  margin-bottom: 4vw;
}
.partner_wrapper {
  margin-bottom: 2vw;
}
.partner_wrapper .swiper-slide {
  height: auto;
}
.partner_wrapper .swiper-slide a {
  display: block;
  transition: all 0.4s;
  background-color: #fff;
  color: #333;
}
.partner_box {
  padding: 20px;
}
.partner_info {
  font-size: 24px;
  margin: 2vw 0;
}
.partner_box span {
  border: 1px solid #ff6100;
  border-radius: 5px;
  padding: 5px 1vw;
  padding-top: 12px;
}
.partner_text {
  margin-bottom: 2vw;
}
.partner_box span i {
  font-size: 24px;
  color: #ff6100;
}
.partner_box_more {
  margin-top: 20px;
  display: inline-block;
  padding: 5px 4vw;
  border: 1px solid #fff;
  font-size: 24px;
}
.partner_box_more a {
  color: #fff;
}

/* abouts */
.abouts_bg {
  background: url(../images/abouts_bg.jpg) no-repeat bottom center;
  margin: 4vw 0;
  padding: 2vw 0;
  padding-bottom: 6vw;
}
.abouts_left .abouts_con {
  margin: 1vw 0;
  margin-bottom: 6vw;
}
.abouts_con h2 {
  margin-top: 10px;
  margin-bottom: 20px;
  color: var(--color);
  font-weight: bold;
}
.abouts_con p {
  text-indent: 2em;
  font-size: 16px;
  color: #525252;
}
.abouts_right img {
  margin-bottom: 1vw;
}
.abouts_right .tac {
  display: block;
  margin: 0 auto;
}
.abouts_right .abouts_text {
  margin-top: 6vw;
  margin-left: 2vw;
  font-size: 18px;
}

/* news */
.news_list {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  margin-bottom: 4vw;
}
.news_list li {
  flex: 0 0 30%;
  width: 30%;
  margin-bottom: 3vw;
}
.news_list li h2 {
  font-size: 16px;
  font-weight: bold;
  margin-bottom: 10px;
}
.news_list li p {
  color: #7f7e7e;
  margin-bottom: 10px;
}
.news_list li em {
  font-style: normal;
  display: inline-block;
  color: var(--color);
  position: relative;
  padding-bottom: 5px;
}
.news_list li em:after {
  position: absolute;
  display: block;
  content: "";
  width: 100%;
  height: 1px;
  background-color: var(--color);
}

/* footer */
footer {
  background-color: #494949;
  position: relative;
  padding-top: 3vw;
  padding-bottom: 3vw;
  color: #fff;
}
footer a {
  color: #fff;
}
.footer_nav {
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 18px;
}
.footer_nav li {
  margin: 0 1vw;
}
footer:before {
  position: absolute;
  display: block;
  content: "";
  width: 100%;
  height: 10px;
  background-color: var(--color);
  left: 0;
  top: 0;
}