.literature-detail-section {
    background-color: white;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,.08);
    padding: 30px;
    margin-bottom: 30px;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border: 1px solid #e9ecef;
    position: relative;
    min-height: 400px;
}

.literature-title {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.8rem;
    margin-bottom: 20px;
    line-height: 1.4;
}

/* 指标样式 - 优化 */
.metrics-container {
    margin: 0;
    padding: 0;
}

.metrics-row {
   display: flex;
   margin-bottom: 10px;
}

.metric-item {
    margin-right: 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.metric-value {
    font-weight: 600;
    font-size: 1.2rem;
}

.metric-value i{
    color:#85878b;
    font-size: 1rem;
}

.metric-label {
    font-size: 0.8rem;
    color: var(--light-text);
    text-align: center;
}

.funding-info {
    color: var(--text-color);
    margin-bottom: 10px;
}

.operations-row {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

.literature-actions {
    display: flex;
    align-items: center;
}

.action-btn {
    background: none;
    border: none;
    color: var(--light-text);
    font-size: 1.1rem;
    margin-right: 15px;
    cursor: pointer;
    transition: color 0.2s;
    position: relative;
}

.action-btn:hover {
    color: var(--primary-color);
}

.action-btn.active {
    color: #ffc107;
}

.action-tooltip {
    position: absolute;
    bottom: -30px;
    left: 50%;
    transform: translateX(-50%);
    background-color: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}

.action-btn:hover .action-tooltip {
    opacity: 1;
}

.source-dropdown, .pdf-dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-btn {
    background-color: white;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    padding: 8px 15px;
    font-size: 0.9rem;
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
}

.dropdown-btn:hover {
    background-color: #f8f9fa;
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: white;
    min-width: 200px;
    box-shadow: 0 4px 12px rgba(0,0,0,.15);
    border-radius: 6px;
    z-index: 1000;
    padding: 8px 0;
}

.dropdown-content a {
    color: var(--text-color);
    padding: 8px 16px;
    text-decoration: none;
    font-size: 0.9rem;
    overflow-wrap: anywhere;
    word-break: break-word;
    white-space: nowrap;
    display: inline;
}

.dropdown-content a:hover {
    background-color: #f8f9fa;
    color: var(--primary-color);
}

.source-dropdown:hover .dropdown-content,
.pdf-dropdown:hover .dropdown-content {
    display: block;
}

.literature-abstract-detail {
    margin-top: 15px;
    color: var(--light-text);
    font-size: 0.9rem;
    line-height: 1.5;
    max-height: 1.5em;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.literature-abstract-detail.expanded {
    max-height: none;
}

.abstract-toggle-detail {
    color: var(--primary-color);
    cursor: pointer;
    font-size: 0.9rem;
    display: inline-block;
    margin-top: 10px;
}

.hidden-authors {
    display: none;
}

.hidden-authors.show {
    display: inline;
}

.loading-indicator {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px;
    color: var(--light-text);
}

.loading-indicator i {
    margin-right: 10px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@media (max-width: 768px) {
	.literature-detail-section {
		padding: 20px;
		border-radius: 10px;
	}
	
	.literature-title {
		font-size: 1.5rem;
	}
	
	.author-list {
		font-size: 0.9rem;
	}
	
	.action-btn {
		margin-right: 3px;
	}
}