body {
    font-family: "Inter", "system-ui", "-apple-system", "Roboto", "Helvetica", "Arial", sans-serif;
    font-size: 1rem;
    background-color: #f5f7fa;
    color: #303133;
    line-height: 1.6;
    margin: 0;
    max-width: 800px;
    padding: 2ch;
}

#content {
    scrollbar-width: none;
    /* font-size: 1.2rem; */
}

table {
    border-collapse: collapse;
    margin: 10px 0 15px 0;
}

td,th {
    vertical-align: top;
    border: 1px solid #ddd;
    padding: 3px 10px;
}

/* 链接样式 */
a {
    text-decoration: none;
}

a:hover {
    color: red;
    text-decoration: block;
    border-bottom: 1px solid ;
}

b {
    font-weight: bold;
    color: #369;
}

.title {
    text-align: center;
    font-size: 2.5rem;
    color: #2c3e50;
    font-weight: 700;
    letter-spacing: -0.5px;
}

#table-of-contents {
    display: block;
    margin: auto;
    text-align: left;
    font-size: 0.7rem;
}

#table-of-contents::before {
    content: "";
    text-align: center;
    display: block;
    border-top: 1px solid #e6e6e6;
}    

#table-of-contents::after {
    content: "";
    text-align: center;
    display: block;
    border-top: 1px solid #e6e6e6;
}    

#table-of-contents h2 {
    display: none;
}

#table-of-contents ul li {
    display: block;
    font-size: 0.7rem;
    font-style: italic;    
}

#table-of-contents ul li a {
    text-decoration: none;
}

#super-link-list {
    display: block;
    margin: 0 auto;
    text-align: left;
    width: 100%;
    max-width: 400px;
    list-style: none;
    line-height: 1.8;
    scrollbar-width: none;
}

#postamble {
    text-align: center;
    font-size: 0.7rem;
    color: grey;
}

#postamble::before {
    content: "";
    text-align: center;
    display: block;
    border-top: 1px solid #e6e6e6;
}    

.article-info {
    font-size: 0.7rem;
    font-weight: bold;
    font-style: italic;
    margin-top: -0.3rem;
}

.article-info ul {
    text-align: center;

}

.article-info ul li {
    display: inline;
}

.article-info ul li a {
    text-decoration: none;
    color: #666;
}


.org-right {
    margin-left: auto;
    margin-right: 0px;
    text-align: right;
}

.org-left {
    margin-left: 0px;
    margin-right: auto;
    text-align: left;
}

.org-center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}
pre {
    white-space: pre-wrap;       /* CSS3 */
    white-space: -moz-pre-wrap;  /* Firefox */
    white-space: -pre-wrap;      /* 古老的 Opera */
    white-space: -o-pre-wrap;    /* 古老的 Opera */
    word-wrap: break-word;       /* IE 5.5-7 */
    border: 1px solid #e9ecef;
    border-radius: 6px;
    padding: 16px;
    overflow: auto;
    margin: 1.5em 0;
    font-size: 0.8rem;
    line-height: 1.5;
    background-color: #f8f9fa;
    color: #2c3e50;
}

blockquote {
    padding: 15px 20px;
    margin: 1.5em 0;
    border-left: 4px solid #3498db;
    color: #666;
    background-color: #f8f9fa;
    border-radius: 0 6px 6px 0;
    font-style: italic;
}

/* 页脚样式 */
footer {
    text-align: center;
    padding: 40px 0;
    margin-top: 60px;
    border-top: 1px solid #e9ecef;
    color: #6c757d;
    font-size: 0.8rem;
}

footer a {
    color: #6c757d;
    border-bottom-color: #6c757d;
}

footer a:hover {
    color: #3498db;
    border-bottom-color: #3498db;
}

h2,h3,h4,h5,h6 {
    color: #369;
    margin-top: 30px;
    margin-bottom: 15px;
    font-weight: 600;
}

h2 {
    font-size: 1.8rem;
    padding-bottom: 10px;
    border-bottom: 1px solid #e9ecef;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.2rem;
}

h5 {
    font-size: 1rem;
}

h6 {
    font-size: 0.9rem;
}

/* 标题下划线 */
h2::before,
h3::before,
h4::before,
h5::before,
h6::before {
    content: ""
}


/* 脚注区域样式 */
#footnotes {
    display: block;
    font-size: 0.8rem;
    font-style: italic;
    border-top: 1px solid #e1e4e8;
    margin-top: 3rem;
    color: #586069;    
}
/* 通用版本 - 不带固定前缀 */
.footdef {
    display: flex;
    margin-bottom: 0.8rem;
    border-left: 3px solid #6f42c1;
}

.footdef > p {
    display: inline;
    margin: 0;
    flex: 1;
    color: #6c757d;
}



/* PC 端样式 屏幕宽度 ≥ 1201px */
@media screen and (min-width: 1201px) {

    #table-of-contents {
        position: fixed;
        left: 850px;
        top: 20px;
        width: 250px;
        height: 800px;
        overflow-x: hidden;
        overflow-y: auto;
        /* border-right: 1px solid #e6e6e6; */
        /* 自定义滚动条 */
        scrollbar-width: none;
        z-index: 100;
    }

}

/* PC 端样式 屏幕宽度 ≥ 1201px */
@media screen and (min-width: 1301px) {
    body {
	margin: auto;
    }

    #table-of-contents {
        position: fixed;
        left: 0;
        top: 20px;
        width: 250px;
        height: 800px;
        overflow-x: hidden;
        overflow-y: auto;
        /* border-right: 1px solid #e6e6e6; */
        /* 自定义滚动条 */
        scrollbar-width: none;
        z-index: 100;
    }

}