.flex {
  display: -webkit-flex;
  display: flex;
}
html {
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}
body,
div,
dl,
dt,
dd,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
pre,
code,
form,
fieldset,
input,
textarea,
p,
blockquote,
th,
td,
hr,
button,
article,
aside,
figcaption,
figure,
footer,
header,
hgroup,
menu,
nav,
section {
  margin: 0;
  padding: 0;
  font-family: "黑体";
}
li {
  list-style: none;
}
a,
a:hover {
  text-decoration: none;
  display: block;
}
button,
.btn {
  border: none;
  background: #00acee;
  color: #fff;
  height: 60px;
  line-height: 60px;
  width: 15%;
  margin-right: 20px;
  font-size: 1.2em;
  transition: background 0.5s;
  -webkit-transition: background 0.5s;
  -o-transition: background 0.5s;
  -moz-transition: background 0.5s;
  cursor: pointer;
  text-align: center;
}
button:hover,
.btn:hover {
  background: #0087bb;
}
@media screen and (max-width: 1920px) {
  body {
    font-size: 16px;
  }
  .whole {
    padding: 2% 0;
  }
  .content {
    width: 1200px;
    margin: 0 auto;
  }
  .header {
    background: #fff;
    margin-bottom: 2%;
    padding: 0;
    border-bottom: 3px solid #00acee;
  }
  .header .header_top {
    overflow: hidden;
    width: 95%;
    margin: 0 auto;
    padding-top: 2%;
    transition: height 0.5s;
    -webkit-transition: height 0.5s;
    -o-transition: height 0.5s;
    -moz-transition: height 0.5s;
  }
  .header .header_top .header_left {
    float: left;
    overflow: hidden;
    color: #17213c;
    width: 60%;
  }
  .header .header_top .header_left .logo {
    width: 70px;
    float: left;
    transition: width 0.5s;
    -webkit-transition: width 0.5s;
    -o-transition: width 0.5s;
    -moz-transition: width 0.5s;
  }
  .header .header_top .header_left .logo img {
    width: 100%;
    margin: 0 auto;
    vertical-align: bottom;
  }
  .header .header_top .header_left .header_word {
    float: left;
    width: 68%;
    margin-left: 2%;
  }
  .header .header_top .header_left .header_name_chi {
    font-size: 2.3em;
    transition: font-size 0.5s;
    -webkit-transition: font-size 0.5s;
    -o-transition: font-size 0.5s;
    -moz-transition: font-size 0.5s;
  }
  .header .header_top .header_left .header_name_eng {
    transition: display 0.5s;
    -webkit-transition: display 0.5s;
    -o-transition: display 0.5s;
    -moz-transition: display 0.5s;
  }
  .header .header_top .header_right {
    float: right;
    width: 40%;
    text-align: right;
  }
  .header .header_top .header_right .header_intro {
    font-size: 1.3em;
    color: #17213c;
    transition: display 0.5s;
    -webkit-transition: display 0.5s;
    -o-transition: display 0.5s;
    -moz-transition: display 0.5s;
  }
  .header .header_top .header_right .header_search {
    position: relative;
    margin-top: 5px;
  }
  .header .header_top .header_right .header_search input {
    padding: 5px;
    width: 80%;
    border: 1px solid #e5e5e5;
  }
  .header .header_top .header_right .header_search img {
    position: absolute;
    right: 5px;
    top: 5px;
    z-index: 5;
  }
  .header_fixed {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
    width: 100%;
  }
  .header_fixed .content {
    position: relative;
  }
  .header_fixed .header_top {
    float: left;
    width: 30%;
    padding: 5px 0;
    overflow: visible;
  }
  .header_fixed .header_top .header_left {
    width: 100%;
  }
  .header_fixed .header_top .header_left .logo {
    width: 50px;
  }
  .header_fixed .header_top .header_left .header_word {
    width: 80%;
  }
  .header_fixed .header_top .header_left .header_name_chi {
    font-size: 1.5em;
    margin-top: 10px;
  }
  .header_fixed .nav {
    float: left;
    width: 62%;
  }
  .header_fixed .nav ul li {
    height: 60px;
    line-height: 60px;
  }
  .header_fixed .nav ul li a {
    font-size: 0.9em;
  }
  .header_fixed .header_name_eng,
  .header_fixed .header_intro,
  .header_fixed .header_right {
    display: none;
  }
  .header_fixed_search {
    text-align: right;
    position: absolute;
    top: 0;
    right: 0;
    width: 10%;
    cursor: pointer;
    display: none;
  }
  .header_fixed_search > img {
    width: 20px;
    margin-top: 20px;
  }
  .header_fixed_search .header_fixed_search_body {
    margin-top: 25px;
  }
  .header_fixed_search .header_fixed_search_content {
    position: relative;
  }
  .header_fixed_search .header_fixed_search_content input {
    padding: 10px 5px;
    width: 89%;
    border: 1px solid #00acee;
  }
  .header_fixed_search .header_fixed_search_content .header_fixed_search_btn {
    background: #00acee;
    color: #fff;
    text-align: center;
    padding: 6px 0;
    transition: background 0.5s;
    -webkit-transition: background 0.5s;
    -o-transition: background 0.5s;
    -moz-transition: background 0.5s;
  }
  .header_fixed_search .header_fixed_search_content .header_fixed_search_btn:hover {
    background: #0087bb;
  }
  .moblie_menu_btn {
    display: none;
  }
  .nav {
    overflow: hidden;
  }
  .nav ul {
    overflow: hidden;
  }
  .nav ul li {
    float: left;
    width: 14.28571429%;
    text-align: center;
    height: 50px;
    line-height: 50px;
    font-size: 1.2em;
    transition: height 0.5s;
    -webkit-transition: height 0.5s;
    -o-transition: height 0.5s;
    -moz-transition: height 0.5s;
  }
  .nav ul li a {
    color: #4c4c4c;
    transition: color 0.5s;
    -webkit-transition: color 0.5s;
    -o-transition: color 0.5s;
    -moz-transition: color 0.5s;
    position: relative;
  }
  .nav ul li a:hover {
    color: #00acee;
  }
  .nav ul li a .nav_triangle {
    width: 0;
    height: 0;
    border-width: 6px;
    border-style: dashed dashed solid dashed;
    border-color: transparent transparent #00acee transparent;
    position: absolute;
    bottom: 0;
    left: 45%;
    transition: display 0.5s;
    -webkit-transition: display 0.5s;
    -o-transition: display 0.5s;
    -moz-transition: display 0.5s;
  }
  .nav ul li a .nav_triangle {
    display: none;
  }
  .tittle_1 {
    text-align: center;
  }
  .tittle_1 .tittle_chi {
    font-size: 1.8em;
    color: #4c4c4c;
  }
  .tittle_1 .tittle_line {
    border-bottom: 3px solid #00acee;
    width: 12%;
    margin: 0.4em auto;
  }
  .tittle_1 .tittle_l_line {
    background: #efefef;
    width: 100%;
    margin: 0.4em auto;
  }
  .tittle_1 .tittle_l_line .tittle_line {
    margin: 0 auto;
  }
  .tittle_1 .tittle_eng {
    font-size: 0.95em;
    color: #5e5e5e;
    letter-spacing: 1px;
  }
  .tittle_2 {
    text-align: center;
  }
  .tittle_2 .tittle_chi {
    font-size: 1.8em;
    color: #fff;
  }
  .tittle_2 .tittle_line {
    border-bottom: 3px solid #00acee;
    width: 12%;
    margin: 0.4em auto;
  }
  .tittle_2 .tittle_eng {
    font-size: 0.95em;
    color: #fff;
    letter-spacing: 1px;
  }
  .tittle_3 {
    text-align: center;
  }
  .tittle_3 .tittle_chi {
    font-size: 1.8em;
    color: #fff;
  }
  .tittle_3 .tittle_line {
    border-bottom: 3px solid #17213c;
    width: 12%;
    margin: 0.4em auto;
  }
  .tittle_3 .tittle_eng {
    font-size: 0.95em;
    color: #fff;
    letter-spacing: 1px;
  }
  .footer {
    background: #fff;
  }
  .footer .footer_bg {
    padding: 1% 0;
    background: #17213c;
  }
  .footer .footer_bg .footer_body {
    padding: 1% 0;
    border-top: 1px solid #707070;
    border-bottom: 1px solid #707070;
    color: #b2b2b2;
    font-size: 0.85em;
    text-align: center;
  }
  .footer .footer_bg .footer_body .footer_link a {
    color: #b2b2b2;
    margin-left: 1em;
    display: inline-block;
  }
  .footer .footer_bg .footer_body img {
    margin: 0 auto;
  }
  .footer .footer_bg .footer_body .footer_intro {
    line-height: 25px;
  }
  .inpage_top {
    height: 300px;
    overflow: hidden;
    position: relative;
  }
  .inpage_content {
    margin-bottom: 50px;
  }
  .animation_delay_500 {
    animation-delay: 500ms;
    -webkit-animation-delay: 500ms;
    -moz-animation-delay: 500ms;
  }
  .animation_delay_1000 {
    animation-delay: 1000ms;
    -webkit-animation-delay: 1000ms;
    -moz-animation-delay: 1000ms;
  }
  .animation_delay_1500 {
    animation-delay: 1500ms;
    -webkit-animation-delay: 1500ms;
    -moz-animation-delay: 1500ms;
  }
}
@media screen and (max-width: 414px) {
  body {
    font-size: 14px;
  }
  .whole {
    padding: 8% 0;
  }
  .content {
    width: 100%;
  }
  .whole.header {
    padding: 0;
  }
  .header {
    height: 60px;
    line-height: 60px;
  }
  .header .header_top {
    float: left;
    width: 75%;
    padding-top: 0;
  }
  .header .header_top .header_left {
    width: 100%;
  }
  .header .header_top .header_left .logo {
    width: 13%;
    margin-left: 2%;
  }
  .header .header_top .header_left .logo img {
    width: 100%;
    margin: 0 auto;
    vertical-align: bottom;
    margin-bottom: 13px;
  }
  .header .header_top .header_left .header_word {
    width: 81%;
  }
  .header .header_top .header_left .header_name_chi {
    font-size: 1em;
  }
  .header .header_top .header_left .header_name_eng {
    display: none;
  }
  .header .header_top .header_right .header_intro {
    display: none;
  }
  .header .header_top .header_right .header_search {
    display: none;
  }
  .nav {
    background: #fff;
    position: absolute;
    top: 63px;
    right: 0;
    z-index: 10;
    width: 25%;
    overflow: visible;
    border: 1px solid #00acee;
    display: none;
  }
  .nav ul {
    overflow: hidden;
  }
  .nav ul li {
    clear: both;
    width: 100%;
    /*float: left;
                width: 1/7*100%;
                text-align: center;
                .line_height(50px);
                font-size: 1.2em;
                .transition(height 0.5s);*/
  }
  .nav ul li a {
    color: #4c4c4c;
    transition: color 0.5s;
    -webkit-transition: color 0.5s;
    -o-transition: color 0.5s;
    -moz-transition: color 0.5s;
    position: relative;
  }
  .nav ul li a:hover {
    color: #00acee;
  }
  .nav ul li a .nav_triangle {
    width: 0;
    height: 0;
    border-width: 6px;
    border-style: dashed dashed solid dashed;
    border-color: transparent transparent #00acee transparent;
    position: absolute;
    bottom: 0;
    left: 45%;
    transition: display 0.5s;
    -webkit-transition: display 0.5s;
    -o-transition: display 0.5s;
    -moz-transition: display 0.5s;
  }
  .header_fixed {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
    width: 100%;
  }
  .header_fixed .content {
    position: relative;
  }
  .header_fixed .header_top .header_left .header_name_chi {
    margin-top: 0;
  }
  .header_fixed .nav {
    width: 25%;
  }
  .header_fixed_search {
    top: 0;
    right: 2%;
    width: 96%;
    z-index: 11;
    display: block !important;
  }
  .header_fixed_search > img {
    width: auto;
    margin-top: 20px;
    margin-right: 15%;
  }
  .header_fixed_search .header_fixed_search_body {
    margin-top: 10px;
    display: none;
  }
  .header_fixed_search .header_fixed_search_content {
    position: relative;
    overflow: hidden;
    border: 1px solid #00acee;
    background: #fff;
  }
  .header_fixed_search .header_fixed_search_content input {
    float: left;
    width: 78%;
    height: 40px;
    line-height: 40px;
    border: none;
    padding: 0 5px;
  }
  .header_fixed_search .header_fixed_search_content .header_fixed_search_btn {
    float: right;
    width: 17%;
    height: 40px;
    line-height: 40px;
    padding: 0;
  }
  .moblie_menu_btn {
    clear: both;
    position: absolute;
    top: 0;
    right: 15px;
    z-index: 15;
    display: block;
  }
}