p {
    margin: 0;
}

h1 {
    margin: 0;
}

img {
    margin: 0;
}

.row-app-header {
    background-image: url("../img/bg_mobile_app.png");
    background-size: cover;
    padding-bottom: 45px;
}

.intro-container {
    padding-top: 66px;
    padding-left: 30px;
    padding-right: 30px;
    max-width: 528px;
    margin: 0 auto;
}

.text-app-title {
    font-weight: 600;
    font-size: 22px;
    display: inline;
    color: #333;
    vertical-align: middle;
    margin-left: 16px;
}

.text-title {
    font-weight: 600;
    font-size: 22px;
    display: inline;
    color: #333;
    vertical-align: middle;
}

.text-intro {
    font-weight: 400;
    font-size: 16px;
    line-height: 27px;
    text-align: left;
    margin-top: 17px;
    color: #333;
    opacity: 0.7;
}

.market-text {
    font-weight: 1400;
    font-size: 14px;
    line-height: 27px;
    text-align: left;
    margin-top: 12px;
    color: #333;
}

.img-main {
    margin-top: 82px;
    padding-left: 40px;
    padding-right: 40px;
}

.round-button {
    width: 160px;
    height: 48px;
    background: #1a90fd;
    border-radius: 24px;
    font-size: 16px;
    margin-left: 8px;
    margin-right: 8px;
    display: inline;
}

.button-container {
    margin-top: 23px;
    text-align: center;
}

.round-button-container {
    display: inline;
}

.button-icon {
    width: 20px;
}

.img-vertical-margin {
    margin-top: 32px;
    margin-bottom: 41px;
}

.text-vertical-margin {
    margin-top: 41px;
}

.row-bluetooth-list {
    background-image: url("../img/bg_mobile_bluetooth_list.png");
    background-size: cover;
    align-items: center;
}

.text-container {
    padding-left: 30px;
    padding-right: 30px;
    max-width: 528px;
    margin: 0 auto;
}

.row-bluetooth-input {
    background-image: url("../img/bg_mobile_input.png");
    background-size: cover;
    align-items: center;
}

.row-bluetooth-ui {
    background-image: url("../img/bg_mobile_ui.png");
    background-size: cover;
    align-items: center;
}

.row-bluetooth-search {
    background-image: url("../img/bg_mobile_search.png");
    background-size: cover;
    align-items: center;
}

.row-bluetooth-audio {
    background-image: url("../img/bg_mobile_audio.png");
    background-size: cover;
    align-items: center;
}

.row-bluetooth-equalize {
    background-image: url("../img/bg_mobile_equalize.png");
    background-size: cover;
    align-items: center;
}

.row-footer {
    background-image: url("../img/bg_mobile_footer.png");
    background-size: cover;
    align-items: center;
    padding-top: 32px;
    padding-bottom: 32px;
}

.footer-container {
    padding-left: 30px;
    padding-right: 30px;
    max-width: 720px;
    text-align: center;
    margin: 0 auto;
}

.footer-logo {
    horiz-align: center;
    vertical-align: middle;
    display: inline;
    margin: 0 auto;
}

.footer-title {
    font-weight: 600;
    font-size: 22px;
    color: #333;
    margin-top: 21px;
}

.footer-text {
    max-width: 717px;
    font-weight: 400;
    font-size: 18px;
    line-height: 27px;
    text-align: left;
    margin-top: 20px;
    color: #333;
    opacity: 0.7;
}

.experience {
    font-weight: 400;
    font-size: 18px;
    line-height: 27px;
    margin-top: 40px;
    color: #1a90f8;
}

.row-filings {
    background: white;
    align-items: center;
    padding-top: 20px;
    padding-bottom: 20px;
}

.filings-text {
    font-weight: 400;
    font-size: 12px;
    line-height: 20px;
    text-align: center;
    color: #898989;
    text-decoration: none;
}


@media (min-width: 768px) {

    .row-app-header {
        background-image: url("../img/bg_app.png");
        background-size: cover;
        padding-bottom: 135px;
    }

    .intro-container {
        padding-top: 100px;
        padding-left: 30px;
        padding-right: 30px;
        max-width: 528px;
        margin: 0 auto;
    }

    .text-app-title {
        font-weight: 600;
        font-size: 32px;
        display: inline;
        color: #333;
        vertical-align: middle;
        margin-left: 16px;
    }

    .text-title {
        font-weight: 600;
        font-size: 32px;
        display: inline;
        color: #333;
        vertical-align: middle;
    }

    .text-intro {
        font-weight: 400;
        font-size: 16px;
        line-height: 27px;
        text-align: left;
        margin-top: 20px;
        color: #333;
        opacity: 0.7;
    }

    .market-text {
        font-weight: 1400;
        font-size: 14px;
        line-height: 27px;
        text-align: left;
        margin-top: 33px;
        color: #333;
    }

    .img-main {
        margin-top: 117px;
        padding-left: 20px;
        padding-right: 20px;
    }

    .round-button {
        width: 160px;
        height: 48px;
        background: #1a90fd;
        border-radius: 24px;
        font-size: 16px;
        margin-left: 8px;
        margin-right: 8px;
        display: inline;
    }

    .button-container {
        margin-top: 69px;
        text-align: center;
    }

    .round-button-container {
        display: inline;
    }

    .button-icon {
        width: 20px;
    }

    .img-vertical-margin {
        margin-top: 76px;
        margin-bottom: 76px;
    }

    .text-vertical-margin {
        margin-top: 76px;
        margin-bottom: 76px;
    }

    .row-bluetooth-list {
        background-image: url("../img/bg_bluetooth_list.png");
        background-size: cover;
        align-items: center;
    }

    .text-container {
        padding-left: 30px;
        padding-right: 30px;
        max-width: 528px;
        margin: 0 auto;
    }

    .row-bluetooth-input {
        background-image: url("../img/bg_input.png");
        background-size: cover;
        align-items: center;
    }

    .row-bluetooth-ui {
        background-image: url("../img/bg_ui.png");
        background-size: cover;
        align-items: center;
    }

    .row-bluetooth-search {
        background-image: url("../img/bg_search.png");
        background-size: cover;
        align-items: center;
    }

    .row-bluetooth-audio {
        background-image: url("../img/bg_audio.png");
        background-size: cover;
        align-items: center;
        padding-top: 76px;
        padding-bottom: 76px;
    }

    .row-bluetooth-equalize {
        background-image: url("../img/bg_equalize.png");
        background-size: cover;
        align-items: center;
        padding-top: 76px;
        padding-bottom: 76px;
    }

    .row-footer {
        background-image: url("../img/bg_footer.png");
        background-size: cover;
        align-items: center;
        padding-top: 100px;
        padding-bottom: 100px;
    }

    .footer-container {
        padding-left: 30px;
        padding-right: 30px;
        max-width: 720px;
        text-align: center;
        margin: 0 auto;
    }

    .footer-logo {
        horiz-align: center;
        vertical-align: middle;
        display: inline;
        margin: 0 auto;
    }

    .footer-title {
        font-weight: 600;
        font-size: 32px;
        color: #333;
        margin-top: 21px;
    }

    .footer-text {
        max-width: 717px;
        font-weight: 400;
        font-size: 16px;
        line-height: 27px;
        text-align: left;
        margin-top: 20px;
        color: #333;
        opacity: 0.7;
    }

    .experience {
        font-weight: 400;
        font-size: 18px;
        line-height: 27px;
        margin-top: 40px;
        color: #1a90f8;
    }

    .row-filings {
        background: white;
        align-items: center;
        padding-top: 42px;
        padding-bottom: 42px;
    }

    .filings-text {
        font-weight: 400;
        font-size: 12px;
        line-height: 20px;
        text-align: center;
        color: #898989;
    }
}

.no-select {
    text-decoration: none;
    user-select: none; /* 现代浏览器 */
    -webkit-user-select: none; /* Safari */
    -moz-user-select: none; /* Firefox */
    -ms-user-select: none; /* IE/Edge */
}