/* Mermaid 样式 */
.mermaid {
    text-align: center;
    margin: 1.5em 0;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 0.5rem;
    border: 1px solid #e9ecef;
    overflow-x: auto;
    overflow-y: visible;
    max-width: 100%;
    box-sizing: border-box;
}

.mermaid-rendered {
    background: transparent;
    border: none;
    padding: 0;
}

.mermaid-error {
    color: #dc3545;
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
    border-radius: 0.375rem;
    padding: 0.75rem;
    margin: 1rem 0;
    font-family: monospace;
    text-align: left;
}

/* 深色模式下的 Mermaid 样式 */
.dark .mermaid {
    background: #374151;
    border-color: #4b5563;
}

.dark .mermaid-error {
    color: #f8d7da;
    background-color: #2d1b1e;
    border-color: #842029;
}

/* 确保 Mermaid 图表在深色模式下可见 */
.dark .mermaid svg {
    background-color: transparent;
}

/* Mermaid 图表样式优化 */
.mermaid svg {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
    width: auto;
}

/* 针对大型图表的滚动条样式 */
.mermaid::-webkit-scrollbar {
    height: 8px;
}

.mermaid::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

.mermaid::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

.mermaid::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

/* 深色模式下的滚动条 */
.dark .mermaid::-webkit-scrollbar-track {
    background: #4b5563;
}

.dark .mermaid::-webkit-scrollbar-thumb {
    background: #6b7280;
}

.dark .mermaid::-webkit-scrollbar-thumb:hover {
    background: #9ca3af;
}