body,h1,h2,h3,li,ul {
    padding: 0;
    margin: 0
}

li,ul {
    list-style: none;
    margin: 0
}

body {
    font-family: -apple-system-font,BlinkMacSystemFont,Helvetica Neue,PingFang SC,Hiragino Sans GB,Microsoft YaHei UI,Microsoft YaHei,Arial,sans-serif;
    color: rgba(0,0,0,.9);
    line-height: 1.4
}

p {
    margin: .33em 0
}

h2 {
    font-size: 14px;
    font-weight: 700
}

img {
    border: 0
}

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

header {
    display: flex;
    justify-content: space-between;
    animation: b 1s;
    padding: 48px 44px 0 48px
}

.lang,header {
    align-items: center
}

.lang {
    font-size: 0;
    -webkit-text-size-adjust: none;
    display: inline-flex
}

.lang a {
    font-size: 1rem;
    color: rgba(0,0,0,.9);
    padding: 0 8px;
    position: relative
}

.lang .lang-en-us.en_US,.lang .lang-zh-cn.zh_CN,.lang .lang-zh-hk.zh_HK,.lang .lang-zh-hk_zh_TW,.lang a:hover {
    color: rgba(0,0,0,.3)
}

.lang a+a:before {
    content: "";
    left: 0;
    top: .2em;
    bottom: .2em;
    position: absolute;
    width: 1px;
    border-left: 1px solid rgba(0,0,0,.3);
    transform-origin: 0 0;
    transform: scaleX(.5)
}

@media (max-width: 420px) {
    header {
        padding:24px 20px 0 24px
    }

    .logo {
        width: 32px
    }
}

.content-wrapper {
    text-align: center;
    display: flex;
    align-items: center;
    height: calc(70vh - 80px);
    min-height: 375px;
    padding: 0 36px;
    animation: a 1s;
    max-width: 410px;
    margin: 0 auto
}

.content {
    flex: 1;
    max-width: 100%
}

h1 {
    text-align: center;
    white-space: nowrap;
    position: relative;
    padding-bottom: 32px;
    margin-bottom: 16px;
    font-weight: 400;
    font-size: 36px;
    color: rgba(0,0,0,.9);
    padding-left: 7px;
    margin-left: 5px
}

h1:after {
    content: " ";
    position: absolute;
    left: -3px;
    bottom: 0;
    width: 100%;
    height: 1px;
    border-bottom: 1px solid rgba(0,0,0,.1);
    transform-origin: 0 100%;
    transform: scaleY(.5)
}

.version-tag {
    vertical-align: 18px;
    display: inline-block;
    border-radius: 3px;
    top: 8px;
    line-height: 1.4;
    padding: 0 8px;
    font-size: 12px;
    border: 1px solid
}

.feature-list {
    position: relative;
    text-align: justify;
    color: rgba(0,0,0,.7);
    font-size: 17px;
    padding-right: 5px;
    line-height: 1.4
}

.feature-list.en_US {
    text-align: left
}

li {
    padding-left: 16px;
    position: relative
}

li+li {
    margin-top: 8px
}

li:before {
    content: "";
    display: inline-block;
    vertical-align: middle;
    position: absolute;
    left: 2px;
    top: 10px;
    border-radius: 50%;
    overflow: hidden;
    min-width: 3px;
    min-height: 3px;
    background: rgba(0,0,0,.7);
    margin-right: 8px
}

@media (min-width: 1440px) {
    .content-wrapper {
        height:60vh
    }
}

@media (min-width: 1023px) and (min-height:900px) {
    .content {
        transform:scale(1.15)
    }

    .content-wrapper {
        min-height: 425px
    }
}

@media (min-width: 1439px) and (min-height:850px) {
    .content {
        transform:scale(1.2)
    }
}

@media (min-width: 1439px) and (min-height:900px) {
    .content {
        transform:scale(1.3)
    }

    .content-wrapper {
        height: 60vh;
        min-height: 460px
    }

    .feature-list {
        font-size: 16px
    }
}

@media (max-width: 768px) {
    .content-wrapper {
        min-height:425px;
        height: calc(80vh - 100px)
    }
}

@media (max-width: 450px) {
    h1 {
        font-size:32px
    }

    .content-wrapper {
        min-height: 350px;
        height: calc(70vh - 100px)
    }

    .feature-list {
        font-size: 15px
    }

    .version-tag {
        padding: 0 4px
    }
}

@media (max-width: 413px) {
    h1 {
        font-size:24px
    }

    .feature-list {
        font-size: 14px
    }

    .version-tag {
        vertical-align: 10px;
        font-size: 12px;
        transform: scale(.83) translateX(5px);
        transform-origin: left top
    }
}

@media (max-width: 350px) {
    .version-tag {
        font-size:12px;
        transform: scale(.67) translateX(6px);
        transform-origin: left top
    }
}

@media (min-width: 768px) and (max-width:1440px) and (min-height:950px) {
    .content-wrapper {
        height:calc(76vh - 80px)
    }
}

.download-button {
    margin: 56px auto 0;
    background: #07c160;
    border-radius: 4px;
    font-size: 18px;
    color: #fff;
    display: inline-flex;
    align-items: center;
    padding: 7px 12px
}

.download-button:hover {
    background: #06b259
}

.download-button:active {
    background: #06a351
}

.download-icon {
    display: inline-block;
    width: 30px;
    height: 30px;
    margin-right: 8px;
    background: url(xiazai1.svg) 50% 50% no-repeat;
    background-size: contain
}

.download-beta {
    margin-top: 16px
}

.download-beta a {
    font-size: 14px;
    color: #576b95
}

.mobile {
    display: none;
    font-weight: 700;
    position: absolute;
    top: -36px;
    text-align: center;
    left: 0;
    width: 100vw;
    font-size: 14px;
    color: rgba(0,0,0,.35);
    line-height: 1.4
}

.mobile .no-bold {
    font-weight: 400
}

@media (max-width: 440px) {
    .mobile {
        display:unset
    }

    .download-beta,.download-button {
        display: none
    }
}

@media (max-width: 376px) {
    .mobile {
        font-size:12px
    }

    .download-button {
        display: none
    }
}

.image-area {
    z-index: -2;
    bottom: -22vw;
    text-align: center;
    animation: a 1s .2s forwards
}

.image-area,.image-area:after {
    position: absolute;
    width: 100vw;
    opacity: 0
}

.image-area:after {
    content: "";
    overflow: hidden;
    height: 4000px;
    top: 50px;
    left: 0;
    right: 0;
    z-index: -3;
    background: url(xiazai1.svg) 0 0 no-repeat;
    background-size: contain;
    animation: a 1s .4s forwards
}

.image {
    overflow: hidden;
    margin: 0 auto;
    width: 80vw;
    max-width: 900px
}

@media (min-height: 900px) {
    .image {
        max-width:100vh
    }
}

@media (min-width: 1000px) {
    .image-area {
        bottom:-240px
    }
}

@media (min-width: 1800px) and (min-height:1800px) {
    .image-area {
        bottom:-320px
    }
}

@media (min-width: 1440px) and (max-height:1000px) {
    .image-area:after {
        top:0
    }
}

@media (min-width: 3000px) and (max-height:1700px) {
    .image-area:after {
        top:-36px
    }
}

@media (min-width: 3000px) and (max-height:1000px) {
    .image-area:after {
        top:-72px
    }
}

@media (min-width: 768px) and (max-width:1440px) {
    .image {
        width:90vw
    }
}

@media (max-width: 768px) {
    .image-area {
        bottom:-260px
    }

    .image-area:after {
        visibility: hidden
    }

    .image {
        min-width: 900px;
        padding: 0 56px
    }
}

@media (max-width: 768px) and (min-height:900px) {
    .image-area {
        bottom:-240px
    }
}

@media (max-width: 768px) and (min-height:1200px) {
    .image-area {
        bottom:-160px
    }
}

@media (max-width: 440px) {
    .image-area {
        bottom:-126px
    }

    .image-area:after {
        visibility: hidden
    }

    .image {
        min-width: 680px;
        padding: unset;
        margin: 0 -48px
    }
}

@media (max-width: 440px) and (max-height:570px) {
    .image-area {
        bottom:-140px
    }
}

@media (max-width: 440px) and (max-height:634px) {
    .image-area {
        bottom:-180px
    }
}

@media (min-width: 900px) and (max-width:1200px) and (min-height:900px) {
    .image-area {
        bottom:-200px
    }
}

.page-wrapper {
    position: relative;
    height: 100vh;
    min-height: 600px;
    overflow: hidden
}

@media (min-width: 376px) and (max-width:440px) and (max-height:700px) {
    .page-wrapper {
        min-height:700px
    }
}

@media (min-width: 440px) and (max-height:760px) {
    .page-wrapper {
        min-height:760px
    }
}

@media (min-width: 1440px) and (max-height:800px) {
    .page-wrapper {
        min-height:800px
    }
}

footer {
    position: absolute;
    bottom: 8px;
    -webkit-text-size-adjust: none;
    font-size: 10px;
    text-align: center;
    left: 0;
    right: 0
}

footer,footer a {
    color: rgba(0,0,0,.5)
}

footer a {
    position: relative;
    left: -3px
}

footer a:hover:after {
    content: "";
    color: rgba(0,0,0,.5);
    position: absolute;
    bottom: -2px;
    left: 5px;
    right: 5px;
    height: 1px;
    border-bottom: 1px solid rgba(0,0,0,.5)
}

footer .law-files {
    margin-bottom: 4px
}

.desktop-footer {
    text-align: left;
    margin-left: 48px
}

@media (min-width: 440px) {
    .mobile-footer {
        display:none
    }

    .desktop-footer {
        display: block
    }
}

@media (max-width: 440px) {
    .desktop-footer,.mobile-footer {
        display:none
    }
}

@media (max-width: 413px) {
    .mobile {
        font-size:12px
    }
}

@keyframes a {
    0% {
        transform: translateY(100px);
        opacity: 0
    }

    to {
        transform: translateY(0);
        opacity: 1
    }
}

@keyframes b {
    0% {
        top: 80px;
        opacity: 0
    }

    to {
        top: 0;
        opacity: 1
    }
}

.download-button {
    margin: 56px auto 0;
    background: #EC8D05;
    border-radius: 4px;
    font-size: 14px;
    color: #fff;
    display: inline-flex;
    align-items: center;
    padding: 12px 36px;
}

.download-button:hover {
    background: #e08605;
}

.logo {
    width: 42px;
}