:root {
    --header-height: 64px;
    --header-color: rgb(60, 93, 131);
    --content-width: 1280px;
}


header {
    position: fixed;
    width: 100vw;
    height: var(--header-height);
    top: 0px;
    left: 0px;
    background-color: var(--header-color);
    z-index: 10;
}

.logo {
    position: absolute;
    left: 0px;
    top: 0px;
    width: 200px;
    font-size: larger;
    font-weight: bolder;
    height: var(--header-height);
    line-height: var(--header-height);
    color: aliceblue;
    display: block;
    text-align: center;
}

.nav {
    position: absolute;
    left: 200px;
    top: 0px;
    height: var(--header-height);
    width: calc(100vw - 200px);
}

.nav-menuitem {
    display: block;
    width: 120px;
    font-size: large;
    font-weight: bold;
    float: left;
    line-height: var(--header-height);
    color: antiquewhite;
}

.nav-menuitem:hover {
    display: block;
    width: 120px;
    font-size: large;
    font-weight: bold;
    float: left;
    line-height: var(--header-height);
    color: rgb(133, 152, 244);
}

.nav-menuitem[selected="true"] {
    display: block;
    width: 120px;
    font-size: large;
    font-weight: bold;
    float: left;
    line-height: var(--header-height);
    color: rgb(133, 152, 244);
}

.body-frame {
    position: absolute;
    height: calc(100vh - var(--header-height));
    width: var(--content-width);
    top: var(--header-height);
    left: calc((100vw - var(--content-width)) / 2);
    background-color: rgb(243, 243, 243);
    border-radius: 2px;
    min-height: calc(100vh - 132px);
    overflow-y: hidden;
}

.page-title {
    margin: 8px;
    display: block;
    position: fixed;
    height: var(--header-height);
    top: var(--header-height);
    left: calc((100vw - var(--content-width)) / 2);
    width: var(--content-width - 16px);
    z-index: 9;
}

hr {
    position: fixed;
    top: calc(var(--header-height) * 2);
    left: calc((100vw - var(--content-width)) / 2);
    width: var(--content-width);
    z-index: 12;
}

aside {
    position: fixed;
    top: calc(var(--header-height) *2 + 16px);
    left: calc((100vw - var(--content-width)) / 2);
    width: 240px;
    height: calc(100vh - var(--header-height) * 2 - 24px);
    border: 1px solid darkgray;
    border-radius: 2px;
}

.temp-list {
    list-style-type: none;
    margin: 8px 0;
    padding: 0;
}

.temp-title {
    font-size: 24px;
    font-weight: bold;
    margin: 8px;
}

.temp-item {
    height: 32px;
    width: 100%;
    display: block;
    padding: 0;
    margin-left: 0;
    line-height: 32px;
    text-indent: 8px;
}

.temp-item a {
    text-decoration: none;
    user-select: none;
    display: block;
    width: 100%;
}

.temp-item:hover {
    height: 32px;
    width: 100%;
    display: block;
    background-color: darkgray;
    padding: 0;
    margin-left: 0;
    line-height: 32px;
    text-indent: 8px;
}

.content {
    position: absolute;
    top: calc(var(--header-height) + 16px);
    left: 256px;
    width: calc(100% - 280px);
    height: calc(100vh - var(--header-height) * 2 - 40px);
    text-indent: 2em;
    font-size: 16px;
    margin-block-end: 8px;
    padding: 8px;
    overflow-y: scroll;
    /* border: 1px solid rgb(233, 13, 98); */
}

.content::-webkit-scrollbar {
    display: none;
}