* {
    box-sizing: border-box;
    padding: 0;
    margin: 0;
}

html, body {
    width: 100%;
    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
}

.container {
    max-width: 90%;
    margin: auto;
}

h1 {
    font-size: 40px;
    margin: 0 auto 24px;
    max-width: 62%;
}

.font12 {
    font-size: 2rem;
}

.font32 {
    font-size: 32px;
}

.icon {
    display: inline-block;
    margin: 6px 12px;
    color: #8d8d8d;
    cursor: default;
}

.icon i {
    font-size: 24px;
    display: block;
    margin: 4px 0;
}

.icon .os {
    font-size: 15px;
    display: block;
    margin: 4px 0;
}

.icons {
    text-align: center;
    margin: 32px 0;
}

.icons .icon {
    margin: 6px 24px;
}

header {
    background: #f7f7f7;
    position: sticky;
    top: 0;
    border-bottom: 1px solid #ddd;
    color: #000;
    padding: 16px 24px;
    font-size: 24px;
    font-weight: bold;
    z-index: 10;
}

header img {
    height: 32px;
    display: inline-block;
    vertical-align: text-top;
}

.header-title {
    margin-left: 12px;
    font-size: 20px;
    display: inline-block;
    color: #666;
}

header ul {
    list-style-type: none;
    float: right;
}

.menu {
    display: none;
    float: right;
    color: #666;
    margin-top: 6px;
}

header li {
    font-size: 1rem;
    display: inline-block;
    font-weight: normal;
    cursor: default;
}

header li:hover {
    color: #999;
    cursor: pointer;
}

header li.selected {
    background: #0b57d0;
    color: #fff;
    padding: 6px 12px;
    border-radius: 24px;
}

main {
    text-align: center;
}

section {
    background: #fff;
    padding: 3rem 0 5rem;
    text-align: center;
}

section:nth-child(even) {
    background: #f4f5f7;
}

section .description {
    padding: 16px;
    /*border-radius: 8px;*/
    min-height: 200px;
    display: inline-block;
}

section p {
    line-height: 2.5;
    text-align: left;
}

li a,
a.start {
    text-decoration: none;
    color: #666;
    display: block;
    justify-content: center;
    text-align: center;
    padding: 6px 24px;
    border-radius: 24px;
}

a:hover {
    background: #eee;
}

a.start {
    background: #0b57d0;
    align-items: center;
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    height: 40px;
    justify-content: center;
    padding: 0 32px;
    text-align: center;
    transition: background-color .3s, color .3s;
    display: inline-block;
    line-height: 40px;
}

.des-box {
    display: inline-block;
    box-shadow: 4px 5px 3px 0 #aaa;
    vertical-align: text-top;
    max-width: 100%;
    margin: 16px;
    border: 1px solid #ccc;
    /*border-bottom-left-radius: 28px;*/
}

.des-box img {
    width: 100%;
}

.des-box30 {
    width: 28%;
    position: relative;
}

.des-box30-right {
    margin: 16px 32px;
    position: absolute;
    right: 0;
    top: 0;
    color: #d11f0a;
    font-style: italic;
}

.des-box18 {
    width: 21%;
}

.des-box50 {
    width: 45%;
    overflow: hidden;
}

.des-box-group {
    overflow: hidden;
    height: 300px;
    display: flex;
    flex-direction: row;
}

.des-box50-left {
    width: 48%;
    background: #017cfb;
}

.des-box50-content {
    display: flex;
    flex-direction: column;
}

.des-box50-content h2 {
    padding: 16px 0;
    color: #666;
}

.des-box-memo {
    text-align: left;
    padding: 46px 56px;
    color: #666;
}

.des-box-left {
    width: 60%;
    position: relative;
}

.des-box-title {
    padding: 16px;
}

.des-sub-title {
    font-size: 24px;
    text-align: left;
    padding: 16px 5%;
    color: #666;
}

.des-box-store {
    display: inline-block;
    margin: 24px;
}

.des-box-store img {
    width: 56px;
}

.des-box-store .memo {
    font-size: 12px;
    color: #666;
    margin-top: 6px;
}

.icons .icon .os {
    margin-top: 8px;
    display: block;
}

footer {
    background: #fff;
    position: relative;
    /*border-top: 1px solid #ccc;*/
    padding: 24px;
    text-align: center;
    color: #666;
}

@media screen and (max-width: 600px) {
    header {
        text-align: center;
    }

    .navigation {
        display: none;
    }

    .menu {
        display: inline-block;
    }

    header ul {
        position: absolute;
        right: 6px;
        top: 50px;
        background: #f7f7f7;
        box-shadow: 1px 1px 3px 0 #aaa;
    }

    header li {
        display: block;
        padding: 4px 0;
    }

    header li.selected {
        border-radius: 0;
    }

    .des-box {
        width: auto;
        display: block;
    }

    .des-box50-left {
        width: 80%;
    }

    .des-box30-right {
        margin: 16px 12px;
    }

    .des-box-group.not-cloud {
        flex-direction: column;
    }

    .des-box50-left.img {
        background-size: cover;
        height: 300px;
        width: 100%;
    }
}