* {
    padding: 0;
    margin: 0;
}

html {
    font-family: "微软雅黑";
    -ms-text-size-adjust: 100%;
    -webkit-text-size-adjust: 100%;
    width: 100%;
    height: 100%;
}

body {
    margin: 0px;
    min-width: 1300px;
}

article {
    display: block;
}

aside {
    display: block;
}

details {
    display: block;
}

figcaption {
    display: block;
}

figure {
    display: block;
}

footer {
    display: block;
}

header {
    display: block;
}

hgroup {
    display: block;
}

main {
    display: block;
}

menu {
    display: block;
}

nav {
    display: block;
}

section {
    display: block;
}

summary {
    display: block;
}

audio {
    vertical-align: baseline;
    display: inline-block;
}

canvas {
    vertical-align: baseline;
    display: inline-block;
}

progress {
    vertical-align: baseline;
    display: inline-block;
}

video {
    vertical-align: baseline;
    display: inline-block;
}

audio:not([controls]) {
    height: 0px;
    display: none;
}

[hidden] {
    display: none;
}

template {
    display: none;
}

a {
    background-color: transparent;
}

a:active {
    outline: 0px;
}

a:hover {
    outline: 0px;
}

abbr[title] {
    border-bottom-color: currentColor;
    border-bottom-width: 1px;
    border-bottom-style: dotted;
}

b {
    font-weight: 700;
}

strong {
    font-weight: 700;
}

dfn {
    font-style: italic;
}

h1 {
    margin: 0.67em 0px;
    font-size: 2em;
}

mark {
    background: rgb(255, 255, 0);
    color: rgb(0, 0, 0);
}

small {
    font-size: 80%;
}

sub {
    line-height: 0;
    font-size: 75%;
    vertical-align: baseline;
    position: relative;
}

sup {
    line-height: 0;
    font-size: 75%;
    vertical-align: baseline;
    position: relative;
}

sup {
    top: -0.5em;
}

sub {
    bottom: -0.25em;
}

img {
    border: 0px currentColor;
    border-image: none;
}

svg:not(:root) {
    overflow: hidden;
}

figure {
    margin: 1em 40px;
}

hr {
    height: 0px;
    box-sizing: content-box;
}

pre {
    overflow: auto;
}

code {
    font-family: monospace;
    font-size: 1em;
}

kbd {
    font-family: monospace;
    font-size: 1em;
}

pre {
    font-family: monospace;
    font-size: 1em;
}

samp {
    font-family: monospace;
    font-size: 1em;
}

button {
    font: inherit;
    margin: 0px;
    color: inherit;
    font-size-adjust: inherit;
    font-stretch: inherit;
}

input {
    font: inherit;
    margin: 0px;
    color: inherit;
    font-size-adjust: inherit;
    font-stretch: inherit;
}

optgroup {
    font: inherit;
    margin: 0px;
    color: inherit;
    font-size-adjust: inherit;
    font-stretch: inherit;
}

select {
    font: inherit;
    margin: 0px;
    color: inherit;
    font-size-adjust: inherit;
    font-stretch: inherit;
}

textarea {
    font: inherit;
    margin: 0px;
    color: inherit;
    font-size-adjust: inherit;
    font-stretch: inherit;
}

button {
    overflow: visible;
}

button {
    text-transform: none;
}

select {
    text-transform: none;
}

button {
    cursor: pointer;
    -webkit-appearance: button;
}

html input[type=button] {
    cursor: pointer;
    -webkit-appearance: button;
}

input[type=reset] {
    cursor: pointer;
    -webkit-appearance: button;
}

input[type=submit] {
    cursor: pointer;
    -webkit-appearance: button;
}

button[disabled] {
    cursor: default;
}

html input[disabled] {
    cursor: default;
}

input {
    line-height: normal;
}

input[type=checkbox] {
    padding: 0px;
    box-sizing: border-box;
}

input[type=radio] {
    padding: 0px;
    box-sizing: border-box;
}

input[type=search] {
    box-sizing: content-box;
    -webkit-appearance: textfield;
}

fieldset {
    margin: 0px 2px;
    padding: 0.35em 0.62em 0.75em;
    border: 1px solid silver;
    border-image: none;
}

legend {
    padding: 0px;
    border: 0px currentColor;
    border-image: none;
}

textarea {
    overflow: auto;
}

optgroup {
    font-weight: 700;
}

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

td {
    padding: 0px;
}

th {
    padding: 0px;
}

* {
    box-sizing: border-box;
}

body {
    background: rgb(255, 255, 255);
    color: rgb(0, 0, 0);
    font-family: "DIN-Light", "FZLTXHK";
    -ms-overflow-x: hidden;
    -webkit-font-smoothing: subpixel-antialiased;
    -webkit-tap-highlight-color: transparent;
}

/* html {
    background: rgb(255, 255, 255);
    color: rgb(0, 0, 0);
    font-family: "DIN-Light", "FZLTXHK";
    -ms-overflow-x: hidden;
    -webkit-font-smoothing: subpixel-antialiased;
    -webkit-tap-highlight-color: transparent;
} */

a {
    color: inherit;
    text-decoration: none;
}

a:active {
    color: inherit;
    text-decoration: none;
}

a:focus {
    color: inherit;
    text-decoration: none;
}

a:hover {
    color: inherit;
    text-decoration: none;
}

a:active {
    outline: 0px;
}

a:focus {
    outline: 0px;
}

a:hover {
    outline: 0px;
}

/* img {
    max-width: 100%;
} */

.topmenu {
    background: rgb(0, 0, 0);
    transition: height 1s ease-in-out, right 1s ease-in-out, color 1s ease-in-out, background 1s ease-in-out;
    height: 55px;
    color: rgb(51, 51, 51);
    overflow: hidden;
    position: relative;
    z-index: 8;
}

.topmenu .logo {
    transition: top 1s ease-in-out, height 1s ease-in-out, width 1s ease-in-out;
    left: 100px;
    position: absolute;
    top: 10px;
    width: 284px;
    height: 30px;
}

.topmenu .btn_container {
    transition: top 1s ease-in-out;
    top: 0px;
    right: 100px;
    overflow: hidden;
    position: absolute;
    height: 46px;
}

.btn_container .link {
    letter-spacing: 5px;
    font-size: 12px;
    margin: 0px 20px;
    transition: line-height 1s ease-in-out, height 1s ease-in-out;
    font-weight: bold;
    display: inline-block;
    position: relative;
    height: 55px;
    line-height: 55px;
    color: #fff;
    text-decoration: none;
}

.btn_container .active {
    background-color: red;
    padding: 5px;
}

#video {
    /* padding-bottom: 300px; */
    /* width: 1200px; */
}