@charset "utf-8";
html {
	font-size: 62.5%;
}

body {
  margin: 0;
  font-size: 1.4rem;
  font-family: "Microsoft YaHei", Helvetica, sans-serif;
  color: #595757;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0;
}

p {
	margin: 0;
}

img {
	display: block;
	max-width: 100%;
	border: 0;
}

a {
	text-decoration: none;
}

.c {
  box-sizing: border-box;
  width: 1200px;
  max-width: 100%;
  margin: auto;
}

.df {
  display: flex;
}

.aic {
  align-items: center;
}

.jcsb {
  justify-content: space-between;
}

.jcse {
  justify-content: space-evenly;
}

header {
  position: relative;
  z-index: 2;
}

.menu {
  width: 100%;
  background: #F0F0F0;
}

.logo {
  padding: 8px 12px;
}

.logo a {
  display: block;
}

.logo a img {
  height: 84px;
}

.nav-btn {
  display: none;
}

nav ul {
  padding: 0;
  margin: 0;
}

nav ul li {
  position: relative;
  list-style: none;
}

nav > ul > li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 1px;
  height: 50%;
  background: #DADADA;
  transform: translateY(-50%);
}

nav > ul > li:first-of-type::before {
  display: none;
}

nav > ul > li > a {
  display: block;
  font-size: 2.2rem;
  line-height: 4.5;
  padding: 0 25px;
  color: #595757;
}

nav > ul > li:hover > a {
  background: #62BAC6;
}

nav > ul > .on > a, nav > ul > .on > a:hover {
  color: #ffffff;
  background: #62BAC6;
}

nav > ul > li > ul {
  position: absolute;
  left: 50%;
  top: 100%;
  display: none;
  background: rgba(115, 115, 115, .8);
  box-shadow: 0 2px 2px rgba(188, 188, 188, .5);
  transform: translateX(-50%);
}

nav > ul > li:hover > ul {
  display: block;
}

nav > ul > li > ul > li {
  border-top: 1px solid rgb(234, 236, 238);
}

nav > ul > li > ul > li > a {
  display: block;
  padding: 0 10px;
  font-size: 2.2rem;
  line-height: 2;
  text-align: center;
  white-space: nowrap;
  color: rgb(255, 255, 255);
}

nav > ul > li > ul:hover > .on > a {
  background: none;
}

nav > ul > li > ul:hover > li:hover > a, nav > ul > li > ul > .on > a {
  background: #62BAC6;
}

.it {
  padding: 60px 0 30px;
  text-align: center;
}

.it h3 {
  position: relative;
  padding: 0 0 2px;
  font-size: 4rem;
  line-height: 1.8;
  font-weight: normal;
}

.it h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 48px;
  height: 2px;
  background: #595757;
  transform: translateX(-50%);
}

.it h4 {
  font-size: 2.4rem;
  line-height: 2;
  letter-spacing: .5em;
  text-indent: .5em;
}

footer {
  padding: 54px 0 64px;
  font-size: 1.2rem;
  line-height: 2;
  color: #c6c6c6;
  background: url(../img/footer_bg.jpg) no-repeat center / cover;
}

.fline {
  padding-bottom: 28px;
  border-bottom: 2px solid #6d6d6d;
}

.fi {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 35%;
}

.flogo {
  padding: 10px;
}

.fewm {
  padding: 10px 40px;
}

.footer {
  width: 64.5%;
}

.footer p {
  padding: 0 0 20px;
  font-size: 1.8rem;
  line-height: 1.33;
  border-bottom: 2px solid #6d6d6d;
}

.footer .df {
  flex-wrap: wrap;
}

.footer .df > div {
  width: 43%;
  padding: 10px 0;
}

.footer .df > .divdb {
  width: 100%;
}

.footer .df > div span {
  display: block;
  font-size: 1.8rem;
  line-height: 2;
}

.footer .df > div strong {
  display: block;
  font-size: 2.4rem;
  line-height: 1.5;
  font-weight: normal;
  color: #ffffff;
}

.footer .df > div a {
  color: #c6c6c6;
}

.footer .df > div a:hover {
  text-decoration: underline;
}

.copyright {
  padding: 10px 0 0;
  margin: 10px 0 0;
  border-top: 1px solid #666666;
}

.main {
  padding: 60px 0 120px;
}

.ct {
  padding: 0 0 30px;
  text-align: center;
}

.ct h2 {
  display: inline-block;
  font-size: 3rem;
  line-height: 2;
  color: #62bac6;
  border-bottom: 2px solid #62bac6;
}

.content {
  padding: 30px 0;
}

.content p {
  font-size: 2.4rem;
  line-height: 1.5;
  text-indent: 2em;
  text-align: justify;
}

.bc {
  text-align: center;
  background: #f5f5f5;
}

.bc a {
  display: inline-block;
  padding: 0 50px;
  font-size: 3.6rem;
  line-height: 2.5;
  color: #565656;
}

.bc a.on {
  color: #ffffff;
  background: #62bac6;
}

.prolist {
  padding: 70px 0;
}

.prolist ul {
  padding: 0;
  margin: 0;
}

.prolist ul li {
  list-style: none;
}

.prolist ul li > div > * {
  margin: auto;
}

.prolist ul li span {
  display: block;
  font-size: 2.4rem;
  line-height: 2.25;
  text-align: center;
}

.protable {
  padding: 0 0 100px;
}

.protable img {
  margin: auto;
}

.cooperate {
  padding: 40px 0 0;
}

.cooperate ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-evenly;
  align-items: center;
  padding: 0;
  margin: 0;
}

.cooperate ul li {
  list-style: none;
}

.contact {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 70px 0 0;
}

.cttl {
  width: 40%;
}

.cttr {
  width: 54.5%;
}

.clogo {
  padding: 50px 0;
}

.contact h3 {
  font-size: 3rem;
  line-height: 2.2;
  font-weight: normal;
}

.contact ul {
  padding: 0;
  margin: 0;
}

.contact ul li {
  display: flex;
  list-style: none;
}

.contact ul li span {
  display: block;
  font-size: 2.4rem;
  line-height: 1.5;
}

.contact ul li span:first-of-type {
  white-space: nowrap;
}

@media screen and (max-width: 1200px) {
  .c {
    padding: 0 10px;
  }

  .logo a img {
    height: 60px;
  }

  nav > ul > li > a {
    font-size: 2rem;
    line-height: 3;
  }

  nav > ul > li > ul > li > a {
    font-size: 2rem;
  }

  .it {
    padding: 40px 0 20px;
  }

  .clogo {
    padding: 30px 0;
  }

  .contact h3 {
    font-size: 2.4rem;
  }
  
  .contact ul li span {
    font-size: 2rem;
  }

  .cttl {
    width: 42%;
  }
}

@media screen and (max-width: 1024px) {
  header {
    padding: 64px 0 0;
  }

  .logo a img {
    height: 48px;
  }

  .menu {
    position: fixed;
    top: 0;
    z-index: 2;
  }

  .nav-btn {
    display: block;
    width: 40px;
    height: 40px;
  }

  .nav-btn a {
    position: relative;
    box-sizing: border-box;
    display: block;
    height: 100%;
    text-indent: -999em;
    background: #62BAC6;
    border-radius: 2px;
  }

  .nav-btn a::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    transition-duration: .2s;
    width: 72%;
    height: 3px;
    background: rgb(255, 255, 255);
  }

  .nav-btn a::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    transition-duration: .2s;
    width: 72%;
    height: 15px;
    border-top: 3px solid rgb(255, 255, 255);
    border-bottom: 3px solid rgb(255, 255, 255);
  }

  .menu.on a::before {
    transform: translate(-50%, -50%) rotate(-45deg);
  }

  .menu.on a::after {
    transform: translate(-50%, -50%) rotate(45deg);
    height: 3px;
    background: rgb(255, 255, 255);
    border: 0 none;
  }

  nav {
    position: fixed;
    z-index: 999;
    top: 64px;
    left: 100%;
    transition-duration: .2s;
    width: 100%;
    height: calc(100vh - 64px);
    padding: 0;
    background: rgb(255, 255, 255);
  }

  .menu.on nav {
    left: 0;
  }

  nav > ul {
    display: block !important;
    justify-content: inherit;
    height: 100%;
    border-top: 1px solid rgb(180, 180, 180);
    overflow-y: auto;
  }

  nav > ul > li {
    margin: 0;
    border-bottom: 1px solid rgb(180, 180, 180);
  }

  nav > ul > li > a {
    padding: 0;
    font-size: 2rem;
    line-height: 2;
    text-indent: 2em;
    text-align: left;
    border-left: 0 none;
  }

  nav > ul > li > ul {
    position: relative;
  }

  nav > ul > li > ul > li > a {
    font-size: 1.8rem;
    line-height: 2.4 !important;
    text-indent: 4em;
    text-align: left;
  }

  nav > ul > li > ul:hover > li:hover > a {
    background: none;
  }

  .it h3 {
    font-size: 3.2rem;
  }

  .it h4 {
    font-size: 2.2rem;
  }

  footer {
    padding: 36px 0 48px;
  }

  .footer p {
    font-size: 1.6rem;
  }

  .footer .df > div span {
    font-size: 1.6rem;
  }

  .footer .df > div strong {
    font-size: 2rem;
  }

  .main {
    padding: 30px 0 60px;
  }

  .ct {
    padding: 0 0 20px;
  }

  .ct h2 {
    font-size: 2.4rem;
  }

  .content {
    padding: 20px 0;
  }

  .content p {
    font-size: 2rem;
  }

  .bc a {
    padding: 0 30px;
    font-size: 2.4rem;
  }

  .prolist {
    padding: 40px 0;
  }

  .protable {
    padding: 0 0 60px;
  }

  .cttl {
    width: 58%;
  }

  .cttr {
    width: 40%;
  }
}

@media screen and (max-width: 768px) {
  .it {
    padding: 20px 0 10px;
  }

  .it h3 {
    font-size: 2.4rem;
  }

  .it h4 {
    font-size: 2rem;
  }

  footer {
    padding: 20px 10px;
    /* background-position: left center; */
  }

  footer .c {
    display: block;
    padding: 0;
  }

  .fi {
    width: 100%;
    padding: 0 0 20px;
    flex-direction: row;
    justify-content: space-between;
  }

  .flogo {
    padding: 0;
  }

  .fewm {
    padding: 0;
  }

  .fi img {
    height: 72px;
  }

  .footer {
    width: 100%;
  }

  .footer p {
    padding: 0 0 10px;
    font-size: 1.4rem;
  }

  .footer .df > div {
    width: 100%;
    padding: 10px 0 0;
  }

  .footer .df > div strong {
    font-size: 1.8rem;
  }

  .ct h2 {
    font-size: 2rem;
  }

  .content p {
    font-size: 1.8rem;
  }

  .bc a {
    padding: 0 15px;
    font-size: 2rem;
  }

  .prolist {
    padding: 20px 0;
  }

  .prolist ul {
    flex-direction: column;
  }
  
  .prolist ul li img {
    max-width: 80%;
  }

  .prolist ul li span {
    font-size: 2rem;
  }

  .protable {
    padding: 0 0 40px;
  }

  .contact {
    display: block;
    padding: 20px 0 0;
  }

  .cttl {
    width: 100%;
  }

  .cttr {
    width: 100%;
  }
}