* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    list-style: none;
    -webkit-tap-highlight-color: transparent;
}

html, body {
    position: relative;
    height: 100%;
    font-family: sans-serif;
}

body {
    background: #eee;
    font-family: Helvetica Neue, Helvetica, Arial, sans-serif;
    font-size: 14px;
    color: #000;
    margin: 0;
    padding: 0;
}

body a {
    color: #fff;
    text-decoration: none;
}

body a:hover {
    text-decoration: underline;
}

.app {
    width: 100%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.pageBg {
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100vh;
    background: url(./img/pcbg.png) no-repeat center / cover, linear-gradient(179deg, #010817, #01142c 30%, #011d3c 50%, #222f3e 80%, #142336);
}

.pageBg::before {
    content: '';
    display: block;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
}

.starBox {
    position: fixed;
    top: 0;
    width: 100%;
    height: 73vh;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: start;
    z-index: 2;
}

.canvas {
    position: absolute;
    width: 100%;
    height: 100%;
}

.container {
    width: 100%;
    min-height: 100vh;
    position: relative;
    /* z-index: 2; */
    color: #fff;
    display: flex;
    flex-direction: column;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 5%;
}

header h1 {
    color: #fff;
    position: relative;
    z-index: 3;
    margin: 0;
    padding: 0;
}

header h1 img {
    height: 52px;
    display: block;
}

nav {
    margin-top: 10px;
}

nav a {
    margin-top: 10px;
    color: #fff;
}

ul {
    display: flex;
    gap: 14px;
}

ul li {
    position: relative;
}

nav ul li::before {
    content: '';
    width: 1px;
    --h: 10px;
    height: var(--h);
    background-color: #ffffff3d;
    position: absolute;
    left: calc(var(--gap) / -2);
    top: calc(50% - var(--h) / 2);
}

nav ul li:first-child:before {
    display: none;
}

ul li a {
    position: relative;
    z-index: 3;
    padding: 5px;
}

main {
    flex: 1;
    display: flex;
    align-items: center;
    padding-bottom: 10vh;
    justify-content: center;
    flex-direction: column;
}

main {
    max-width: 1200px;
    margin: 0 auto;
    width: 90%;
}

.mainLogo {
    display: none;
}

.intro {
    text-align: center;
    max-width: 1200px;
    margin-bottom: 16vh;
    /* width: 80%; */
    --fz: 36px;
    line-height: 1.4;
}

.intro h2 {
    font-size: var(--fz);
    margin-bottom: 10px;
}

.intro p {
    font-size: calc(var(--fz) * 0.6);
}

.downBtn {
    display: flex;
    align-items: center;
    gap: 20px;
}

.downBtn .item {
    border: 1px solid #fff;
    width: 160px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 100px;
    font-size: 14px;
    cursor: pointer;
    padding: 5px 20px;
    box-sizing: border-box;
    gap: 10px;
    background-color: hsl(202.11deg 32.2% 23.14% / 55%);
    text-decoration: none;
    outline: none;
    user-select: none;
    color: #fff;
    transition: .3s;
    display: none;
    --kuosan: 20px;
    z-index: 3;
}

.pc .downBtn .item.apple, .pc .downBtn .item.google, .ios .downBtn .item.apple, .android .downBtn .item.google {
    display: flex;
}

.downBtn .item:hover {
    box-shadow: 0 0 var(--kuosan) 0px #ccc;
    transform: scale(.95);
}

.downBtn .item.apple {}

.downBtn .item i {
    width: 20px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: inherit;
}

.downBtn .item i img {
    max-height: 100%;
    max-width: 100%;
}

.downBtn .item .ico_google {}

.downBtn .item .ico_apple {}

.downBtn .item .txt {
    display: flex;
    align-items: center;
    flex: 1;
}

.client_other .downBtn .google {
    display: flex;
}

.client_android .downBtn .google {}

.client_ios .downBtn .apple {}

/*  */
@media screen and (max-width: 1440px) {
    header h1 img {
        height: 40px;
    }

    .intro {
        --fz: 30px;
    }
}

@media screen and (max-width: 960px) {
    header h1 img {
        height: 30px;
    }

    .intro {
        --fz: 20px;
    }

    nav ul {
        font-size: 12px;
        --gap: 4vw;
        gap: var(--gap);
    }

    .downBtn .item {
        --kuosan: 10px;
        width: 124px;
        padding: 3px 13px;
        height: 35px;
        font-size: 12px;
        gap: 4px;
        text-decoration: none;
        outline: none;
        user-select: none;
    }
}

@media screen and (max-width: 750px) {
    nav {
        position: fixed;
        left: 0;
        bottom: 2vh;
        width: 100%;
        user-select: none;
        outline: none;
    }

    nav ul {
        justify-content: center;
        font-size: 10px;
    }

    nav ul li {
        position: relative;
    }

    header h1 {
        display: none;
    }

    .mainLogo {
        display: block;
        margin-bottom: 5vh;
    }

    .mainLogo img{
        max-width: 110px;
    }
}