* {
  box-sizing: border-box;
}
html {
  font-family: sans-serif;
  -ms-text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
  font-family: microsoft yahei;
  color: #333;
  font-size: 14px;
}
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
main,
nav,
section,
summary {
  display: block;
}
audio,
canvas,
progress,
video {
  display: inline-block;
  vertical-align: baseline;
}
audio:not([controls]) {
  display: none;
  height: 0;
}
[hidden],
template {
  display: none;
}
a {
  background: 0 0;
  color: #000;
}
a:active,
a:hover {
  color: #cb3737;
  outline: 0;
  text-decoration: none;
}
a:link {
  text-decoration: none;
}
abbr[title] {
  border-bottom: 1px dotted;
}
b,
strong {
  font-weight: 700;
}
p {
  margin: 0 0 10px;
}
dfn {
  font-style: italic;
}
h1 {
  font-size: 2em;
  margin: 0.67em 0;
}
mark {
  background: #ff0;
  color: #000;
}
small {
  font-size: 80%;
}
sub,
sup {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}
sup {
  top: -0.5em;
}
sub {
  bottom: -0.25em;
}
img {
  border: 0;
  max-width: 100%;
  height: auto;
}
svg:not(:root) {
  overflow: hidden;
}
figure {
  margin: 1em 40px;
}
hr {
  -moz-box-sizing: content-box;
  box-sizing: content-box;
  height: 0;
}
pre {
  overflow: auto;
}
code,
kbd,
pre,
samp {
  font-family: monospace, monospace;
  font-size: 1em;
}
button,
input,
optgroup,
select,
textarea {
  color: inherit;
  font: inherit;
  margin: 0;
}
button {
  overflow: visible;
}
button,
select {
  text-transform: none;
}
button,
html input[type="button"],
input[type="reset"],
input[type="submit"] {
  -webkit-appearance: button;
  cursor: pointer;
}
button[disabled],
html input[disabled] {
  cursor: default;
}
button::-moz-focus-inner,
input::-moz-focus-inner {
  border: 0;
  padding: 0;
}
input {
  line-height: normal;
}
input[type="checkbox"],
input[type="radio"] {
  box-sizing: border-box;
  padding: 0;
}
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
  height: auto;
}
input[type="search"] {
  -webkit-appearance: textfield;
  -moz-box-sizing: content-box;
  -webkit-box-sizing: content-box;
  box-sizing: content-box;
}
input[type="search"]::-webkit-search-cancel-button,
input[type="search"]::-webkit-search-decoration {
  -webkit-appearance: none;
}
textarea:focus,
input:focus {
  box-shadow: none;
  outline: 0;
}
fieldset {
  border: 1px solid silver;
  margin: 0 2px;
  padding: 0.35em 0.625em 0.75em;
}
legend {
  border: 0;
  padding: 0;
}
textarea {
  overflow: auto;
}
optgroup {
  font-weight: 700;
}
table {
  border-collapse: collapse;
  border-spacing: 0;
}
td,
th {
  padding: 0;
}
ul,
ol {
  list-style: none;
  padding: 0;
  margin: 0;
}
.wrapper {
  position: relative;
}
.left {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  background-size: cover;
  display: block;
  background-position: 50% 0;
  background-color: #000;
}
.right {
  float: right;
}
@media (max-width: 768px) {
  .left {
    display: none;
  }
  .right {
    width: 100%;
  }
}
.right_box {
  padding: 80px 50px;
}
.right_foot {
  background: #f5f5f5;
  padding: 20px 50px;
  font-size: 12px;
  color: #555;
  display: table;
  width: 100%;
}
.right_foot a {
  color: #555;
}
.right_f_l {
  width: 70%;
  float: left;
}
.right_f_l p {
  margin: 0;
  color: #555;
}
.right_f_l p span {
  margin-right: 5px;
}
.right_f_r {
  width: 30%;
  float: right;
  text-align: right;
}
@media (max-width: 768px) {
  .right_f_l {
    width: 100%;
    float: none;
    text-align: center;
  }
  .right_f_r {
    width: 100%;
    float: none;
    text-align: center;
    margin-top: 5px;
  }
}
.index_box {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}
.index_txt {
  text-align: center;
  font-weight: 300;
}
.index_txt img {
  border-radius: 50%;
  width: 140px;
  height: 140px;
}
.index_txt h1 {
  font-size: 30px;
  margin: 20px 0;
}
.index_txt p {
  font-size: 16px;
  font-weight: inherit;
  line-height: 30px;
  width: 70%;
  margin: 20px auto;
}

@media (max-width: 768px) {
  .index_txt p {
    width: 100%;
  }
  .index_txt {
    width: 90%;
  }
}