/* 洪河博客 - 样式表 */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --bg: #f8fafc;
    --sidebar-bg: #1e293b;
    --text: #334155;
    --text-light: #64748b;
    --border: #e2e8f0;
    --card-bg: #ffffff;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans SC', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

.layout {
    display: flex;
    min-height: 100vh;
}

/* 侧边栏 */
.sidebar {
    width: 280px;
    background: var(--sidebar-bg);
    color: #e2e8f0;
    padding: 30px 20px;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.profile {
    text-align: center;
    padding-bottom: 25px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.avatar {
    font-size: 60px;
    margin-bottom: 15px;
}

.profile h2 {
    font-size: 1.3em;
    margin-bottom: 5px;
}

.tagline {
    font-size: 0.85em;
    color: #94a3b8;
}

.nav-menu {
    margin: 25px 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-menu a {
    color: #cbd5e1;
    text-decoration: none;
    padding: 10px 15px;
    border-radius: 8px;
    transition: all 0.2s;
}

.nav-menu a:hover,
.nav-menu a.active {
    background: rgba(255,255,255,0.1);
    color: white;
}

.history-section,
.visitor-section {
    margin: 20px 0;
    padding: 15px;
    background: rgba(255,255,255,0.05);
    border-radius: 10px;
}

.history-section h3,
.visitor-section h3 {
    font-size: 0.9em;
    margin-bottom: 12px;
    color: #94a3b8;
}

#history-list {
    list-style: none;
    font-size: 0.85em;
}

#history-list li {
    padding: 8px 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

#history-list li:last-child {
    border-bottom: none;
}

#history-list a {
    color: #cbd5e1;
    text-decoration: none;
    display: block;
}

#history-list a:hover {
    color: white;
}

#history-list .date {
    font-size: 0.8em;
    color: #64748b;
}

.view-all {
    display: block;
    text-align: center;
    margin-top: 12px;
    color: var(--primary);
    text-decoration: none;
    font-size: 0.85em;
}

.visitor-info {
    font-size: 0.85em;
}

.visitor-info p {
    margin: 8px 0;
}

#visitor-count {
    color: #fbbf24;
    font-weight: bold;
    font-size: 1.2em;
}

.visitor-ip,
.visitor-location {
    color: #64748b;
    font-size: 0.8em;
}

.footer {
    margin-top: auto;
    padding-top: 20px;
    text-align: center;
    font-size: 0.8em;
    color: #64748b;
}

/* 主内容区 */
.main-content {
    flex: 1;
    margin-left: 280px;
    padding: 40px 60px;
    max-width: 900px;
}

.blog-post {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 50px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

.post-header {
    margin-bottom: 30px;
    padding-bottom: 25px;
    border-bottom: 2px solid var(--border);
}

.post-meta {
    display: flex;
    gap: 20px;
    font-size: 0.9em;
    color: var(--text-light);
    margin-bottom: 15px;
}

.post-title {
    font-size: 2em;
    line-height: 1.3;
    color: var(--text);
}

.post-content {
    font-size: 1.05em;
    line-height: 1.9;
}

.post-content h2 {
    font-size: 1.5em;
    margin: 35px 0 20px;
    color: var(--text);
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary);
}

.post-content h3 {
    font-size: 1.2em;
    margin: 25px 0 15px;
}

.post-content p {
    margin-bottom: 1.2em;
}

.post-content blockquote {
    margin: 25px 0;
    padding: 20px 25px;
    background: #f1f5f9;
    border-left: 4px solid var(--primary);
    border-radius: 0 10px 10px 0;
    font-style: italic;
    color: var(--text-light);
}

.post-content code {
    background: #f1f5f9;
    padding: 2px 8px;
    border-radius: 4px;
    font-family: 'Fira Code', monospace;
    font-size: 0.9em;
}

.post-content pre {
    background: #1e293b;
    color: #e2e8f0;
    padding: 20px;
    border-radius: 10px;
    overflow-x: auto;
    margin: 20px 0;
}

.post-content pre code {
    background: none;
    padding: 0;
    color: inherit;
}

.post-content ul,
.post-content ol {
    margin: 15px 0;
    padding-left: 25px;
}

.post-content li {
    margin: 8px 0;
}

.post-content strong {
    color: var(--text);
}

.post-content a {
    color: var(--primary);
    text-decoration: none;
}

.post-content a:hover {
    text-decoration: underline;
}

/* 加载动画 */
.loading {
    text-align: center;
    padding: 60px;
    color: var(--text-light);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 响应式 */
@media (max-width: 1024px) {
    .sidebar {
        width: 240px;
    }
    .main-content {
        margin-left: 240px;
        padding: 30px 40px;
    }
}

@media (max-width: 768px) {
    .layout {
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
        padding: 20px;
    }
    .main-content {
        margin-left: 0;
        padding: 20px;
    }
    .blog-post {
        padding: 25px;
    }
    .post-title {
        font-size: 1.5em;
    }
    .history-section {
        display: none;
    }
}