* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    outline: none;
    border: none;
}

img {
    width: 100%;
    margin-top: -1%;
}

a,
ul,
li,
ol {
    text-decoration: none;
    list-style: none;
    color: white;
}

#main {
    max-width: 1920px;
    width: 100%;
    margin: auto;
    font-size: 18px;
    background: rgb(0, 0, 0);
    color: white;
    text-align: center;
}

.container1 {
    width: 100%;
    overflow: hidden;
    background: url("../images/青背景\ 1.png") no-repeat top center/cover;
    position: relative;
}

.container2 {
    width: 100%;
    overflow: hidden;
    background: url("../images/白背景\ 1.png") no-repeat top center/cover;
}

.c-form {
    position: absolute;
    top: 70%;
    width: 100%;
}

.c-form form {
    display: flex;
    flex-direction: column;
    max-width: 600px;
    width: 90%;
    margin: auto;
}

.c-form form input[type="email"] {
    height: 5vw;
    margin-bottom: 1vw;
    font-size: 28px;
    text-align: center;
    font-weight: bold;
    border: 1px solid orange;
}

.c-form-subtitle {
    font-size: 2.4vw;
    font-weight: bold;
    font-family: system-ui;
    color: white;
    margin: 1%;
}

.cdt {
    display: flex;
    justify-content: center;
    width: 100%;
    color: #f28223;
    font-size: 5vw;
}

.count {
    margin: 0;
    margin-bottom: 8%;
    font-weight: bold;
    /* text-shadow: 4px 2px 2px #f28223; */
}



@media only screen and (max-width: 1440px) {
    html {
        font-size: calc(1/1440 * 100vw)
    }

    img {
        width: 130%;
        margin-left: -15%;
        margin-top: -1%;
    }

    .c-form form {
        max-width: 50vw;
    }

    .c-form-subtitle {
        font-size: 40rem;
        margin: 3%;
    }

    .count {
        margin: 20rem;
        margin-bottom: 150rem;
    }

    .cdt {
        font-size: 6vw;
    }

    .c-form form input[type="email"] {
        font-size: 28rem;
    }

}


@media only screen and (max-width: 1024px) {
    img {
        width: 140%;
        margin-left: -20%;
        margin-top: -1%;
    }
}


@media only screen and (max-width: 768px) {
    html {
        font-size: calc(1/(768*1.3) * 100vw)
    }

    img {
        width: 160%;
        margin-left: -30%;
        margin-top: -1%;
    }

    .cdt {
        font-size: 58rem;
    }

    .count {
        margin: 14rem;
        margin-bottom: 140rem;
        font-weight: bold;
        /* text-shadow: 2px 2px 2px #f2ba23; */
    }

    .c-form form {
        max-width: 60vw;
    }

    .c-form form input[type="email"] {
        height: 74rem;
    }

}


@media only screen and (max-width: 425px) {
    html {
        font-size: calc(1/(768*1.1) * 100vw)
    }

    img {
        width: 190%;
        margin-left: -45%;
        margin-top: -1%;
    }

    .c-form form{
        max-width: 70vw;
    }

    footer {
        font-size: 14px;
    }
}