.yanjiu_read_box{
    width: 100%;
    padding-top: calc(20px + 4rem);
}
.yanjiu_read{
    max-width: 1480px;
    width: 90%;
    margin: auto;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

  /* 主内容区 */
  .article-main {
    width: 67.5676%;
}
.article-title {
    width: 55%;
    font-size: calc(4px + 1.5rem);
    font-weight: 600;
    line-height: calc(10px + 2rem);
    margin-bottom: calc(10px + 2rem);
}
.article-meta {
    font-size: calc(4px + 0.5rem);
    color: #666;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: calc(6px + 1.5rem);
}
.article-meta div {
    margin-right: 1rem;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: calc(5px + 0.25rem);
}
.article-meta div img{
    height: calc(4px + 0.5rem);
}
.article-content {
    font-size:calc(6px + 0.5rem);
    color: #444;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    
}
.article-content .case-info p {
    margin: 0.3rem 0;
}
.article-content section {
    margin-top: 1rem;
}
.article-content h3 {
    font-size: 0.9rem;
    margin: 1rem 0 0.5rem;
}
.article-content p {
    margin: 0.5rem 0;
}
.expand-btn {
    color: #d4af37;
    font-size: 0.85rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    margin-top: 0.5rem;
}
.expand-btn::after {
    content: "▼";
    font-size: 0.7rem;
    margin-left: 0.3rem;
}

/* 侧边栏：联系我们 */
.contact-sidebar {
    width: 26.8919%;
    background: #FFFFFF;
    box-shadow: 0px 0px calc(8px + 0.5rem) 0px rgba(0,0,0,0.1);
    border-radius: calc(5px + 0.25rem);
    padding: calc(3px + 3rem) calc(5px + 2rem);
}
.contact-sidebar h3 {
    font-family: PingFang SC;
    font-weight: bold;
    font-size: calc(6px + 1rem);
    color: #333333;
    line-height: calc(10px + 2rem);
    border-bottom: 1px #E6E8E6 solid;
    padding-bottom: calc(6px + 1rem);
}
.contact-item {
    margin: 1.2rem 0;
    border-bottom: 1px #E6E8E6 solid;
    padding-bottom: calc(10px + 2rem);
}
.contact-item .icon {
    width: 1.2rem;
    height: 1.2rem;
    display: inline-block;
    margin-bottom: 0.3rem;
}
.contact-item .label {
font-family: PingFang SC;
font-weight: 800;
font-size: calc(4px + 1rem);
color: #BFA151;
line-height: calc(9px + 2rem);
}
.contact-item .value {
    font-family: Futura Bk BT;
    font-weight: normal;
    font-size: calc(2px + 1rem);
    color: #808080;
    line-height: calc(10px + 1.5rem);
}

.news_prev_next{
    border-top: 1px #DCDCDC solid;
    padding-top: calc(8px + 1rem);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    gap: calc(10px + 0.5rem);
    margin-top: calc(10px + 3rem);
}

.news_prev_next div p{
font-family: PingFang SC;
font-weight: 500;
font-size: calc(8px + 0.5rem);
color: #333333;
line-height: calc(10px + 1rem);
}