html,
body,
div,
span,
applet,
object,
iframe,
h1,
h2,
h3,
h4,
h5,
h6,
p,
blockquote,
pre,
a,
abbr,
acronym,
address,
big,
cite,
code,
del,
dfn,
em,
img,
ins,
kbd,
q,
s,
samp,
small,
strike,
strong,
sub,
sup,
tt,
var,
b,
u,
i,
center,
dl,
dt,
dd,
ol,
ul,
li,
fieldset,
form,
label,
legend,
table,
caption,
tbody,
tfoot,
thead,
tr,
th,
td,
article,
aside,
canvas,
details,
embed,
figure,
figcaption,
footer,
header,
hgroup,
menu,
nav,
output,
ruby,
section,
summary,
time,
mark,
audio,
video {
    margin: 0;
    padding: 0;
    border: 0;
}

i {
    font-style: normal;
}

input {
    border: 0 none;
    outline: 0;
}

article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
menu,
nav,
section {
    display: block;
}

body {
    max-width: 1920px;
    margin: 0 auto;
}

ol,
ul {
    list-style: none;
}

blockquote,
q {
    quotes: none;
}

blockquote:before,
blockquote:after,
q:before,
q:after {
    content: '';
    content: none;
}

table {
    border-collapse: collapse;
    border-spacing: 0;
}

a {
    text-decoration: none;
    cursor: pointer;
}

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

li {
    display: block;
}

.main {
    padding-top: 200px;
}

.introduce-title {
    margin: auto;
    text-align: center;
}

.introduce-title h1 {
    font-size: 50px;
    letter-spacing: 2px;
    font-weight: bold;
    line-height: 75px;
}

.introduce-title h3 {
    font-size: 45px;
    font-weight: bold;
    line-height: 75px;
}

.introduce-content {
    width: 1000px;
    margin: auto;
    margin-top: 30px;
}

.introduce-content p {
    text-align: left;
    line-height: 30px;
}

.introduceLogo {
    padding: 5px;
    border: 2px solid;
    box-sizing: border-box;
}

.introduceContent {
    margin-top: 10px;
}

.btn_zixun {
    display: flex;
    margin: 0 auto;
    padding: 50px 0 0 0;
    text-align: center;
    align-items: center;
    justify-content: center;
    animation: 0.7s tag linear infinite;
}

.btn_zixun i {
    /* background: url(../img/btn-logo.png) no-repeat center top; */
    width: 50px;
    height: 50px;
}

.btn_zixun i:nth-child(3) {
    transform: rotateY(180deg);
}

.btn_zixun>a {
    font-weight: bold;
    font-size: 30px;
    position: relative;
    letter-spacing: 7px;
    color: #fff;
    border: 2px solid;
    border-image: linear-gradient(to left, #fdab83, #fac869) 1;
    background-image: -webkit-linear-gradient(bottom, #fecf5d, #ffb58b);
    -webkit-background-clip: text; 
    -webkit-text-fill-color: transparent;
    box-sizing: border-box;
    padding: 20px;
}

.btn_zixun>a:before {
    position: absolute;
    content: '';
    transition-duration: .9s;
    z-index: -1;
    top: 0;
    right: auto;
    bottom: auto;
    right: 0;
    width: 0;
    height: 100%;
    opacity: 1;
}

.btn_zixun>a:hover:before {
    width: 100%;
    background: linear-gradient(180deg, #f6c872 0%, #f4a177 100%);
    height: 100%;
    opacity: 0.5;
}

@keyframes tag {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(0.95);
    }
    100% {
        transform: scale(1);
    }
}