.box-container {
    display: inline-block;
    margin: 0;
    padding: 0;
    margin-top: 0em;
    width: 100%;
}

.box {
    list-style-type: none;
    float: left;
    opacity: 0;
    transform: translate3d(0, 40px, 0);
    transition: opacity 0.2s, transform 0.35s;
}

    .box.show {
        opacity: 1;
        transform: translate3d(0, 0, 0);
        transition: opacity 0.4s, transform 0.35s;
    }

    .box .inner {
        padding: 10px;
        position: relative;
    }

    .box a {
        display: block;
        width: 100%;
        height: auto;
        position: relative;
        overflow: hidden;
    }

    .box img {
        width: calc(100% + 50px);
        max-width: calc(100% + 50px);
        transition: opacity 0.35s, transform 0.35s;
        transform: translate3d(-40px, 0, 0);
        max-height: 150px;
    }

    .box a::before {
        content: '';
        display: block;
        width: 100%;
        height: 100%;
        position: absolute;
        top: 0;
        left: 0;
        background: #000;
        z-index: 99;
        opacity: 0;
        transition: opacity 0.4s;
    }

.three-cols .box {
    width: 100%;
}

.four-cols .box {
    width: 23.1%;
}

    .four-cols .box:nth-child(4n+0) {
        margin-right: 0;
    }

    .four-cols .box:nth-child(4n+1) {
        clear: both;
        margin-left: 0;
    }

.options-list {
    width: 700px;
    margin: 0 auto;
    border: 1px solid #ececec;
    border-radius: 2px;
}

    .options-list .option {
        overflow: hidden;
        border-bottom: 1px solid #ececec;
    }

        .options-list .option .name {
            font-weight: 600;
            display: inline-block;
            width: 23%;
            float: left;
            text-align: left;
            padding: 14px 17px;
            color: #000;
            font-size: 0.89em;
            font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif, BlinkMacSystemFont, '.SFNSText-Regular', sans-serif !important;
        }

        .options-list .option .value {
            display: inline-block;
            width: 65%;
            float: left;
            padding: 14px 17px;
            text-align: left;
            line-height: 1.7em;
            font-size: 0.89em;
            border-left: 1px solid #eee;
            font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif, BlinkMacSystemFont, '.SFNSText-Regular', sans-serif !important;
        }

        .options-list .option .type {
            color: #ed7205;
            font-weight: 600;
        }

.params-list {
    margin-bottom: 11em;
}

.option-code {
    width: 700px;
    margin: 0 auto;
    border: 1px solid #ececec;
    border-radius: 2px;
    padding-left: 20px;
    padding-top: 0;
    margin-bottom: 48px;
}

.inline-inner {
    padding: 40px;
}

.inline-close-btn {
    background: #FFC107;
    width: 200px;
    display: block;
    margin: auto;
    height: 53px;
    text-align: center;
    line-height: 53px;
    font-weight: 600;
    font-size: 15px;
    border-radius: 5px;
    border: 2px solid #eee;
}

    .inline-close-btn:hover {
        border-color: #000;
    }

.play-btn {
    width: 94px;
    height: 94px;
    background: radial-gradient(#1977cc 50%, rgba(25, 119, 204, 0.4) 52%);
    border-radius: 50%;
    display: block;
    position: absolute;
    left: calc(50% - 47px);
    top: calc(50% - 47px);
    overflow: hidden;
}

    .play-btn::after {
        content: '';
        position: absolute;
        left: 50%;
        top: 50%;
        transform: translateX(-40%) translateY(-50%);
        width: 0;
        height: 0;
        border-top: 10px solid transparent;
        border-bottom: 10px solid transparent;
        border-left: 15px solid #fff;
        z-index: 100;
        transition: all 400ms cubic-bezier(0.55, 0.055, 0.675, 0.19);
    }

    .play-btn::before {
        content: '';
        position: absolute;
        width: 120px;
        height: 120px;
        -webkit-animation-delay: 0s;
        animation-delay: 0s;
        -webkit-animation: pulsate-btn 2s;
        animation: pulsate-btn 2s;
        -webkit-animation-direction: forwards;
        animation-direction: forwards;
        -webkit-animation-iteration-count: infinite;
        animation-iteration-count: infinite;
        -webkit-animation-timing-function: steps;
        animation-timing-function: steps;
        opacity: 1;
        border-radius: 50%;
        border: 5px solid rgba(25, 119, 204, 0.7);
        top: -15%;
        left: -15%;
        background: rgba(198, 16, 0, 0);
    }

    .play-btn:hover::after {
        border-left: 15px solid #1977cc;
        transform: scale(20);
    }

    .play-btn:hover::before {
        content: '';
        position: absolute;
        left: 50%;
        top: 50%;
        transform: translateX(-40%) translateY(-50%);
        width: 0;
        height: 0;
        border: none;
        border-top: 10px solid transparent;
        border-bottom: 10px solid transparent;
        border-left: 15px solid #fff;
        z-index: 200;
        -webkit-animation: none;
        animation: none;
        border-radius: 0;
    }



@media (min-width: 390px) {
    .three-cols .box {
        width: 50%;
    }
}

@media (min-width: 576px) {
    .intro h1 {
        font-size: 4.3em;
    }

    .intro {
        max-height: 70vh;
        min-height: 640px;
        padding-top: 0px;
    }

        .intro h1,
        .tagline {
            text-align: left;
        }

    .tagline {
        font-size: 100%;
    }

    .three-cols .box {
        width: 33.3%;
    }

        .three-cols .box:nth-child(3n+0) {
            margin-right: 0;
        }

        .three-cols .box:nth-child(3n+1) {
            margin-left: 0;
        }

    .mcbutton {
        width: auto;
    }
}

@media (min-width: 992px) {
    .box:hover img {
        transform: translate3d(0, 0, 0);
        transition: opacity 0.35s, transform 0.35s;
    }

    .box:hover a::before {
        opacity: 0.3;
        transition: opacity 0.5s;
    }
}