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

a, a:hover,
a:hover::before,
a:hover::after {
    -webkit-transition: all 0.2s ease;
    transition: all 0.2s ease;
}
a {
    color: var(--c-font);
    font-weight: 500;
}
a:hover {
    text-decoration: none;
    color: var(--c-accent);
}

ul, ol {
    margin: 0.5em 0.5em 0.5em 0.8em;
    padding-left: 1.5em;
}

ul ul, ol ul,
ul ol, ol ol {
    margin: 0.2em 0 0.2em 0.5em;
}
ul ul, ol ul {
    margin-left: 0.3em;
}

li {
    padding: 3px 0;
    line-height: 1.8em;
}

ul > li {
    padding-left: 0.2em;
}
ol > li {
    padding-left: 0.4em;
}



/* 汎用クラス */

.left {
    text-align: left;
}
.center {
    text-align: center;
}
.right {
    text-align: right;
}

.flex,
.flex_2,
.flex_3,
.flex_4 {
    display: flex;
    gap: 1em;
}

.flex_2 > * {
    flex-basis: 50%;
}

.flex_3 > * {
    flex-basis: 33%;
}

.flex_4 > * {
    flex-basis: 20%;
}

.scroll {
    overflow-y: scroll;
    height: 5em;
    padding-right: 5px;
}

@media (max-width: 500px) {

    .flex_3,
    .flex_4 {
        flex-wrap: wrap;

        * { flex: 100%; }

    }

}

.dot {
    image-rendering: pixelated;
}

.bs {
    box-sizing: border-box;
    position: relative;
}