.research-section {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    font-family: "Times New Roman", "SimSun", serif; /* 英文用Time New Roman, 中文用宋体 */
    color: #333;
    line-height: 1.8;
}

/* 标题居中 */
.article-header {
    text-align: center;
    margin-bottom: 20px;
}

.research-title {
    font-size: 26px;
    font-weight: bold;
    margin-bottom: 10px;
}

.subtitle {
    font-size: 18px;
    color: #666;
}

.release-info {
    font-size: 14px;
    color: #999;
}

/* 稀疏虚线 */
.dotted-line {
    width: 100%;
    height: 1px;
    background-image: linear-gradient(to right, #ccc 2px, rgba(255, 255, 255, 0) 0%);
    background-size: 12px 1px;
    background-repeat: repeat-x;
    margin: 20px 0 30px 0;
}

/* 正文段落首行缩进 2 字符 */
.article-content p {
    text-indent: 2em; 
    margin-bottom: 15px;
    text-align: justify; /* 两端对齐，看起来更整齐 */
}

/* 小标题不缩进，加粗 */
.section-title {
    text-indent: 0; 
    font-size: 18px;
    font-weight: bold;
    margin: 25px 0 10px 0;
    color: #000;
}

/* 落款靠右 */
.article-footer {
    text-align: right;
    margin-top: 50px;
    text-indent: 0;
}

.article-footer p {
    text-indent: 0; /* 落款不需要缩进 */
    margin-bottom: 5px;
}