$single-page-left-width: 200px;
$info-height: 120px;

.page-main {
    position: absolute;
    left: 0;
    right: 0;
    top: 50px;
    bottom: 0;
    overflow-y: auto;
}

.doc-version-change {
    position: absolute;
    top: 70px;
    right: 50px;
    z-index: 100;

    a {
        display: inline-block;
        margin-left: 20px;
    }
}

.section-bg {
    background: #F4F7FC;
    padding: 10px 0;
}

.d-section.last-section {
    margin-bottom: 30px;
    border-bottom: 0;
}

.page-info {
    margin-bottom: 30px;
    text-align: center;
    padding: 40px;
    color: #4e6167;
    background: #F4F7FC;

    h1 {
        margin-bottom: 5px;
        font-size: 40px;
        font-weight: bold;
        color: #333;
    }

    p {
        font-size: 16px;
    }
}

.page-info-echarts {
    font-size: 12px;
    margin-top: 15px;
    color: #8E99AB;
}

.page-content {
    min-height: 300px;
    padding-bottom: 40px;
    font-size: 16px;
    line-height: 22px;

    h2 {
        color: $clr-secondary;
        padding-bottom: 15px;
        border-bottom: 1px solid #ddd;
        margin-top: 40px;
        margin-bottom: 20px;

        &:first-child {
            margin-top: 0;
        }
    }

    h3 {
        margin: 30px 0 10px 0;
    }

    p {
        margin: 10px 0;
    }

    // &.single-page {
    //     position: absolute;
    //     top: $info-height;
    //     bottom: 0;
    //     left: 0;
    //     right: 0;
    // }

    section {
        padding: 40px 0;
        text-align: center;
    }

    ul {
        padding-left: 30px;
    }

        li {
            margin: 5px 0;
            list-style: disc;
        }
}

    .page-nav {
        position: sticky;
        overflow: auto;
        float: left;
        width: $single-page-left-width;
        top: 20px;
        height: calc(100vh - 100px);
        margin: 0 0 0 30px;
        padding: 0 0 20px 0;

        h4 {
            margin: 10px 0;
            color: #666;
            font-size: 14px;
            padding-left: 10px;

            &:first-child {
                margin-top: 0;
            }

            &.inner {
                margin: 0;
                padding-left: 0;
                font-size: 18px;
            }
        }

        a {
            border-left: 1px solid rgba(78, 97, 103, 0.25);
            color: #999;
            padding: 7px 10px;
            display: block;
            position: relative;

            &:before {
                content: '';
                position: absolute;
                top: 50%;
                bottom: 50%;
                background: $clr-secondary;
                width: 3px;
                left: -1px;
                transition-property: 'top, bottom';
                transition-duration: 0.3s;
                transition-timing-function: ease-out;
            }

            &:hover {
                text-decoration: none;
                color: #333;

                &:before {
                    top: 0;
                    bottom: 0;
                }
            }

            &.active {
                color: $clr-secondary;
            }
        }

        .slide-btn {
            display: none;
        }
    }

    .page-detail {
        margin-left: $single-page-left-width + 20px;
        margin-bottom: 20px;
        padding: 0 40px 0 40px;
        // position: absolute;
        // right: 0;
        // left: 0;
        overflow-x: hidden;

        h2 {
            margin: 10px 0;
            padding-top: 20px;
            font-size: 22px;

            &:first-child {
                margin-top: 0;
                padding-top: 0;
            }

            &+h3 {
                margin-top: 20px;
            }
        }

        h3 {
            margin: 40px 0 15px 0;
            font-size: 18px;
        }

        p {
            margin: 15px 0;
        }

        li {
            padding-left: 0;

            li {
                margin: 5px 0;
            }
        }

        .time {
            float: right;
            position: relative;
            top: -35px;
        }
    }

@media screen and (max-device-width: 600px) {
    .page-content {
        &.single-page {
            position: static;
        }

        &.slide-up {
            .page-nav {
                ul {
                    display: none;
                }
            }
        }
    }

    .page-info {
        text-align: left;
        padding: 15px;
        margin-bottom: 10px;

        h1 {
            margin-bottom: 10px;
        }
    }

    .page-nav {
        position: static;

        .slide-btn {
            display: block;
            color: $clr-contrast;
            position: absolute;
            right: 20px;
            margin-top: 10px;
        }
    }

    .page-detail {
        position: static;
        margin-left: 0;
        padding: 0 15px;

        h2 {
            padding-top: 20px;

            &:first-child {
                padding-top: 0;
            }
        }
    }
}

#download-extension-container {
    max-width: 800px;

    .row {
        margin-top: 40px;
        margin-bottom: 40px;
    }
}