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

body {
    font-family: 'Times New Roman', '宋体', serif;
    line-height: 1.8;
    color: #000;
    font-size:12pt;
}

/* 有序列表样式 */
.ordered-list {
    margin-left: 20px;
    margin-bottom: 25px;
}

.ordered-list li {
    margin-bottom: 10px;
    padding-left: 10px;
    color: #444;
}

.ordered-list li::marker {
    color: #666;
    font-weight: normal;
}

/* 无序列表样式 */
.unordered-list {
    list-style: none;
    margin-left: 20px;
    margin-bottom: 25px;
}

.unordered-list li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 10px;
    color: #444;
}

.unordered-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 10px;
    width: 5px;
    height: 1px;
    background-color: #666;
}

/* 嵌套列表样式 */
.nested-list {
    margin-left: 20px;
    margin-top: 8px;
    margin-bottom: 8px;
}

.nested-list li {
    font-size: 14px;
    color: #555;
    margin-bottom: 6px;
}

/* 定义列表样式 */
.definition-list {
    margin-bottom: 25px;
}

.definition-list dt {
    font-weight: normal;
    color: #2c3e50;
    margin-top: 15px;
    margin-bottom: 5px;
}

.definition-list dd {
    margin-left: 25px;
    color: #555;
    font-size: 14px;
    line-height: 1.7;
}

/* 参考文献样式 */
.reference-list {
    list-style: none;
    margin-left: 25px;
}

.reference-list li {
    margin-bottom: 12px;
    font-size: 14px;
    color: #444;
    text-indent: -25px;
    padding-left: 25px;
}

.reference-list li::before {
    content: "[" counter(ref-counter) "]";
    counter-increment: ref-counter;
    margin-right: 8px;
    color: #666;
}

.reference-list {
    counter-reset: ref-counter;
}

/* 简洁分隔线 */
.divider {
    height: 1px;
    background-color: #e8e8e8;
    margin: 30px 0;
}