.base-info {
    padding: 1rem 0;
    position: relative; /* 添加相对定位 */
}

.base-info::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 1px; /* 下划线的高度 */
    background: linear-gradient(to right, #d3d3d3, transparent); /* 浅灰色到透明的渐变 */
    transition: all 0.3s ease; /* 添加过渡效果 */
}

.base-info:hover::after {
    height: 3px; /* 悬停时增加下划线高度 */
    background: linear-gradient(to right, #a9a9a9, transparent); /* 更深的灰色到透明的渐变 */
}
.pdf-bg {
    background-color: #e6f1e8;
    padding:1.5rem 1rem;
    border-radius: 0.375rem;
    border: 1px solid #2e8d29;
    margin-bottom: 1rem;
    text-transform: capitalize;
}

.pdf-icon {
    color: #4CAF47;
    font-size: 1.75rem;
    line-height: 1;
    display: inline-block;
    vertical-align: middle;
}

.pdf-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    background-color: #4CAF47;
    color: #fff;
    font-size: 0.875rem;
    padding: 0.5rem 0.875rem;
    border-radius: 0.375rem;
    text-decoration: none;
    white-space: nowrap;
    text-transform: capitalize;
    font-weight: 500;
}

.pdf-btn:hover {
    background-color: #3B6077;
    color: #fff;
}

.base-info {
    padding: 1rem 0;
}

.base-doi {
    background: linear-gradient(135deg, #4CAF47 0%, #3B6077 100%) !important;
    padding: 0.5rem;
    border-radius: 10px 0 10px 0;
    transform: skew(-20deg);
    color: #FFF;
}

/* 标题区域样式 */
.article-header {
    margin-bottom: 2rem;
}

.show-title {
    border-bottom: #4CAF47 2px solid;
    padding: 2rem 0;
    font-weight: 500;
	color:#4CAF47;
	text-align:center;
}


/* 作者信息区域 */
.zzinfo {
    text-align: left;
    margin: 1.5rem 0;
    color: #7e8388;
    /*font-size: 1.1rem;*/
    line-height: 1.6;
    font-weight: 400;

}

.zzinfo .cblue {
    display: block;
    max-width: 800px;
    margin: 0 auto;
/*    padding: 0 1rem;*/
}

.zzinfo .uplabel {
    font-size: 0.8em;
    vertical-align: super;
    color: #4CAF47;
    margin-left: 2px;
    font-weight: 600;
}

/* 作者单位信息 */
.dwinfo {
    background-color: #F8F9FA;
    padding: 1.5rem;
    margin: 1.5rem auto;
    max-width: 900px;
    font-size: 0.875rem;
    color: #212529;
    font-weight: 400;
}

.dwinfo .text-uppercase {
    color: #4CAF47;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.dwinfo .address-line {
    margin-bottom: 0.75rem;
    line-height: 1.5;
}

.dwinfo .uplabel {
    font-size: 0.85em;
    font-weight: 600;
    color: #4CAF47;
    margin-right: 5px;
}

.dwinfo .email-line {
    margin-top: 0;
    padding-top: 1rem;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    font-size: 0.875rem;
    color: #3B6077;
    line-height: 1.5;
}

.dwinfo .corresponding-line {
    margin-top: 0.75rem;
    font-style: italic;
    color: #6c757d;
    font-size: 0.875rem;
}

.dwinfo .corresponding-line sup {
    color: #4CAF47;
    font-weight: 600;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .article-header .title {
        font-size: calc(1.3rem + 0.6vw);
        padding-bottom: 1rem;
        margin: 1rem auto;
        font-weight: 500;
    }

    .zzinfo {
        font-size: 1rem;
        padding: 0 0.5rem;
        font-weight: 400;
    }

    .dwinfo {
        margin: 1rem 0;
        padding: 1rem;
        font-size: 0.875rem;
        font-weight: 400;
    }
    
    .pdf-bg {
        padding: 0.75rem;
    }
    
    .pdf-icon {
        font-size: 1.5rem;
    }
}

/* 正文样式 */
#content_main {
    /*font-size: 1.1rem;*/
    line-height: 1.7;
    text-align: justify;
    margin-bottom: 1.5rem;
    font-weight: 400;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, #4CAF47 0%, #3B6077 100%);
    color: #fff;
    border-radius: 0.375rem;
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.download-btn:hover {
    background: linear-gradient(135deg, #3B6077 0%, #4CAF47 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.15);
    color: #fff;
}

.download-btn i {
    margin-right: 0.5rem;
    font-size: 1.1rem;
}

@media (max-width: 768px) {
    .download-btn {
        padding: 0.625rem 1.25rem;
        font-size: 0.875rem;
    }
}

.prev-next-nav {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid #D7EDE4;
}

.prev-next-nav .nav-item {
    padding: 1.25rem;
    border-radius: 0.375rem;
    background-color: #F8F9FA;
    transition: transform 0.2s ease-in-out;
    border: 1px solid #D7EDE4;
    display: flex;
    flex-direction: column;
}

.prev-next-nav .nav-item:hover {
    transform: translateY(-2px);
    border-color: #4CAF47;
    box-shadow: 0 2px 8px rgba(76, 175, 71, 0.15);
}

.prev-next-nav label {
    display: inline-flex;
    align-items: center;
    color: #4CAF47;
    font-size: 0.875rem;
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    font-weight: 500;
    letter-spacing: 0.5px;
    position: relative;
    padding-bottom: 0.5rem;
}

.prev-next-nav label i {
    font-size: 0.75rem;
    color: #4CAF47;
    transition: transform 0.2s ease-in-out;
}

.prev-next-nav label::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 1px;
    background-color: #4CAF47;
    opacity: 0.5;
    transition: opacity 0.2s ease-in-out;
}

.prev-next-nav .nav-item:hover label::after {
    opacity: 1;
}

.prev-next-nav .nav-item:hover i {
    transform: translateX(-3px);
}

.prev-next-nav .nav-item:last-child:hover i {
    transform: translateX(3px);
}

.prev-next-nav .text-truncate {
    max-width: 100%;
    flex: 1;
}

.prev-next-nav a {
    color: #212529;
    font-size: 1rem;
    line-height: 1.5;
    transition: color 0.2s ease-in-out;
    display: block;
}

.prev-next-nav a:hover {
    color: #4CAF47;
}

@media (max-width: 768px) {
    .prev-next-nav {
        grid-template-columns: 1fr;
        gap: 1rem;
        margin-top: 1.5rem;
        padding-top: 1.5rem;
    }

    .prev-next-nav .nav-item {
        padding: 1rem;
    }

    .prev-next-nav label {
        font-size: 0.8125rem;
        margin-bottom: 0.5rem;
        padding-bottom: 0.375rem;
    }

    .prev-next-nav a {
        font-size: 0.9375rem;
    }
}