*,
*:before,
*:after {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    background: #e5f1fd;
    font-family: yahei, serif;
}

body {
    height: 100%;
    min-height: 100vh;
    background-image: url("../images/background-board.jpg");
    background-position: top center;
    background-repeat: no-repeat;
    background-size: cover;
}

.mobile {
    display: none !important;
}

.desktop {
    display: block !important;
}

span.color-red {
    color: #eb333a;
}

.wrapper {
    padding: 0px 20px 40px;
    max-width: 1300px;
    margin: 0 auto;
    position: relative;
}

.content-wrapper {
    height: 100%;
    padding-left: 20px;
    padding-right: 20px;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 0 0;
    /* padding: 20px; */
    /* background: #ffffff; */
}

.header-container .logo-img {
    display: block;
    width: 100%;
    max-width: 200px;
}

.main-title {
    text-align: center;
    padding-top: 30px;
    display: flex;
    justify-content: center;
}

.main-title img {
    display: block;
    width: 100%;
    max-width: 410px;
}

.main-cs {
    display: flex;
    justify-content: center;
    gap: 20px;
    padding: 20px;
}

.main-content {
    border-radius: 30px;
    background: rgba(255, 255, 255, 0.2);
    padding: 16px;
    max-width: 1000px;
    width: 100%;
    margin: auto;
    display: flex;
    flex-direction: column;
    gap: 36px;
}

.liner-set {
    background: #d1d9ed;
    border-radius: 30px;
    padding: 5px;
    display: flex;
    gap: 16px;
}

.line-bg {
    background-image: url("../images/line-bg.png");
    background-repeat: no-repeat;
    background-position: center center;
    background-size: cover;
    height: 50px;
    border-radius: 30px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #ffffff;
    font-size: 22px;
    padding-left: 36px;
    padding-right: 36px;
    white-space: nowrap;
}

.line-speed {
    width: 100%;
    line-height: 100%;
}

.line-speed span {
    font-family: Arial, Helvetica, sans-serif;
    margin-left: 10px;
}

.line-btn {
    white-space: nowrap;
    background-image: url("../images/line-btn-bg.png");
    background-repeat: no-repeat;
    background-position: center center;
    background-size: cover;
    height: 50px;
    border-radius: 30px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #ffffff;
    font-weight: bold;
    padding-left: 36px;
    padding-right: 36px;
    font-size: 16px;
    text-decoration: none;
}

.footer-content {
    padding-top: 20px;
    margin: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.footer-title {
    font-size: 18px;
    color: #ffffff;
}

.browsers-list {
    display: flex;
    gap: 20px;
    margin-top: 30px;
}

.browsers-list .browser {
    border-radius: 50%;
    background: #ffffff;
    padding: 6px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.browser img {
    display: block;
    width: 100%;
    max-width: 45px;
}

@media only screen and (max-width: 767px) {
    .header-container,
    .main-title {
        width: 70%;
        margin: auto;
    }

    .liner-set {
        gap: 10px;
    }

    .line-btn {
        font-size: 14px;
        padding: 0 20px;
    }

    .line-bg {
        font-size: 16px;
        padding: 0 20px;
    }

    .line-speed {
        flex-direction: column;
    }

    .line-speed span {
        margin: 5px 0 0;
        display: block;
    }

    .footer-content {
        padding-top: 60px;
    }
}

@media only screen and (max-width: 500px) {
    .line-btn {
        font-size: 12px;
        padding: 0 15px;
    }

    .line-bg {
        font-size: 12px;
        padding: 0 15px;
    }
}