/* Main Content */
.main-content {
    flex: 1;
    padding: 0rem;
    background-color: var(--bg-dark);
    overflow-y: auto;
    display: flex;
    flex-direction: row;
    height: calc(100vh - 60px)
}


/* Sidebar */
.sidebar {
    width: 200px;
    height: 100%;
    background-color: var(--bg-darker);
    padding: 1.5rem 0;
    border-right: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    flex-direction: column;
    gap: 20px;
    overflow-y: auto;
    align-items: flex-start;
}

.nav-item {
    padding: 0.8rem 1rem;
    margin: 0 10px;
    display: flex;
    align-items: center;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.85rem;
    border-radius: 8px;
    min-width: 80px;
    gap: 0.75rem;
    color: var(--text-secondary);
    text-decoration: none !important;
    position: relative;
    justify-content: flex-start; 
    text-align: left;
}

.nav-item:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--accent);
}

.nav-item.active {
    background: linear-gradient(90deg, rgba(255, 42, 109, 0.15), transparent);
    color: var(--accent);
    border-left: 3px solid var(--accent);
}

.nav-item.active .nav-icon {
    color: var(--accent);
}

.nav-icon {
    font-size: 1.1rem;
    color: var(--text-secondary);
    width: 20px;
    text-align: center;
}

.nav-item:hover .nav-icon {
    color: var(--accent);
}

/* 内容区域 */
.content-area {
    flex: 1;
    padding: 1rem;
    margin: 0 auto;
    width: calc(100% - var(--sidebar-width));
    height: 100%;
    overflow-y: auto;
}


/* Markdown内容区域 */
.markdown-content {
    background-color: var(--bg-darker);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    line-height: 1.7;

}

/* Markdown样式 */
.markdown-content h1 {
    color: var(--text-primary);
    font-size: 2.2rem;
    margin: 2rem 0 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid;
    border-image: linear-gradient(90deg, #ff0000, #ff7b00, #ffd000, #00ff15, #0066ff, #a200ff) 1;
}

.markdown-content h2 {
    color: var(--text-primary);
    font-size: 1.8rem;
    margin: 1.8rem 0 1.2rem;
    padding-bottom: 0.4rem;
    border-bottom: 1px solid var(--divider-color);
}

.markdown-content h3 {
    color: var(--text-primary);
    font-size: 1.5rem;
    margin: 1.5rem 0 1rem;
}

.markdown-content p {
    margin: 1rem 0;
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.markdown-content a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s ease;
}

.markdown-content a:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

.markdown-content ul, 
.markdown-content ol {
    margin: 1rem 0;
    padding-left: 2rem;
}

.markdown-content li {
    margin: 0.7rem 0;
    color: var(--text-secondary);
}

.markdown-content blockquote {
    background: var(--blockquote-bg);
    border-left: 4px solid var(--blockquote-border);
    padding: 1rem 1.5rem;
    margin: 1.5rem 0;
    border-radius: 0 8px 8px 0;
    color: var(--text-primary);
}

.markdown-content pre {
    background-color: var(--code-bg);
    border: 1px solid var(--code-border);
    border-radius: 8px;
    padding: 1.5rem;
    overflow: auto;
    margin: 1.5rem 0;
    position: relative;
}

.markdown-content code {
    font-family: 'Fira Code', monospace;
    background-color: rgba(0, 0, 0, 0.2);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-size: 0.95rem;
}

.markdown-content pre code {
    background: none;
    padding: 0;
    border-radius: 0;
}

.markdown-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    background-color: var(--bg-darker);
    border-radius: 8px;
    overflow: hidden;
}

.markdown-content th, 
.markdown-content td {
    padding: 0.8rem 1rem;
    text-align: left;
    border: 1px solid var(--divider-color);
}

.markdown-content th {
    background-color: rgba(79, 70, 229, 0.2);
    color: var(--accent);
    font-weight: 600;
}

.markdown-content tr:nth-child(even) {
    background-color: rgba(255, 255, 255, 0.05);
}

.markdown-content img {
    max-width: 100%;
    border-radius: 8px;
    margin: 1.5rem 0;
    display: block;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.markdown-content .info-box {
    background-color: rgba(52, 152, 219, 0.1);
    border-left: 4px solid #3498db;
    padding: 1rem;
    border-radius: 0 8px 8px 0;
    margin: 1.5rem 0;
}

.markdown-content .warning-box {
    background-color: rgba(231, 76, 60, 0.1);
    border-left: 4px solid #e74c3c;
    padding: 1rem;
    border-radius: 0 8px 8px 0;
    margin: 1.5rem 0;
}

.markdown-content .tip-box {
    background-color: rgba(46, 204, 113, 0.1);
    border-left: 4px solid #2ecc71;
    padding: 1rem;
    border-radius: 0 8px 8px 0;
    margin: 1.5rem 0;
}


/* 加载指示器 */
.loader {
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-top: 4px solid var(--text-hover);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 2rem auto;
}