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

:root {
    --value-max-width-page: 75rem;
    --color-text-primary: #070a13;
    --color-text-secondary: #8b8b8b;
    --color-text-link: #070a13;
    --color-text-hover: #774cb2;
}

body {
    font-size: 18px;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Segoe UI", Helvetica, Arial, "PingFang SC", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
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733.333h66.667V800h-66.667z"/><path d="M733.333 733.333H800V800h-66.667zM800 733.333h66.667V800H800zM0 800h66.667v66.667H0zM66.667 800h66.667v66.667H66.667z"/><path d="M133.333 800H200v66.667h-66.667zM200 800h66.667v66.667H200z"/><path d="M266.667 800h66.667v66.667h-66.667z"/><path d="M333.333 800H400v66.667h-66.667zM400 800h66.667v66.667H400z"/><path d="M466.667 800h66.667v66.667h-66.667z"/><path d="M533.333 800H600v66.667h-66.667zM600 800h66.667v66.667H600zM666.667 800h66.667v66.667h-66.667z"/><path d="M733.333 800H800v66.667h-66.667zM800 800h66.667v66.667H800z"/></g></svg>);
    background-repeat: repeat;
    background-size: 300px 300px;
    display: flex;
    flex-direction: column;
    min-height: 97vh;
}

a {
    color: var(--color-text-link);
    text-decoration: none;
}

a:link {
    color: var(--color-text-link);
}

a:visited {
    color: var(--color-text-link);
}

a:hover {
    color: var(--color-text-hover);
    text-decoration: none;
}

a:active {
    color: var(--color-text-hover);
}

svg {
    margin-right: 5px;
    vertical-align: middle;
}

main {
    max-width: var(--value-max-width-page);
    max-width: 24rem;
    margin: 0 auto;
}

@media (min-width:24.5rem) {
    main {
        max-width: 43.5rem;
    }
}

@media (min-width:44rem) {
    main {
        max-width: 63rem;
    }
}

h1 {
    font-size: larger;
    font-size: 2.5rem;
    line-height: 1;
    font-weight: bold;
    margin: 3rem;
}

.loading{
    text-align: center;
    color: var(--color-text-secondary);
}
/* 分类区块 */
.category-block{
    margin-top: 30px;
}

/* 分类标题 */
.category-header {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
}
.category-icon {
    margin-right: 10px;
    width: 24px;
    height: 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.category-icon svg {
    width: 100%;
    height: 100%;
}
.category-title {
    margin: 0;
    font-size: 1.2em;
    color: #2c3e50;
    font-weight: 600;
}

/* 网站列表 */
.category-list {
    display: block;
}

.category-list li {
    border-radius: 12px;
    display: inline-block;
    border: 2px #ddd solid;
    margin-bottom: .6rem;
    margin-right: .8rem;
}

.category-list li a {
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: left;
    min-width: 15rem;
    padding: 1.5rem 1.8rem;
}

.category-list li:hover {
    border-color: #e4dbf0;
    background-color: rgba(244, 241, 249, 0.4);
}

.category-list li:hover a,
.category-list li:hover svg {
    color: var(--color-text-hover);
}

footer {
    display: flex;
    flex: 1;
    align-items: end;
    justify-content: center;
}

footer div {
    font-size: 14px;
    color: var(--color-text-secondary);
}

footer div a {
    display: inline-flex;
    /* SVG 相对其父元素垂直居中 */
    vertical-align: middle;
}

footer div svg {
    margin: 0;
}

footer div span {
    font-size: 10px;
    height: 12px;
    background-color: #ccc;
    width: 1px;
    margin: 1em .5em
}


footer a {
    color: var(--color-text-secondary);
    text-decoration: none;
}

footer a:link,
footer a:visited,
footer a:hover,
footer a:active {
    color: var(--color-text-secondary);
}

footer a:hover {
    text-decoration: underline;
}