/* ==========================================
   报纸杂志风格主题 - 核心样式
   ========================================== */

/* 基础变量 */
:root {
    --color-text: #1a1a1a;
    --color-text-light: #666;
    --color-border: #e0e0e0;
    --color-bg: #ffffff;
    --color-bg-alt: #fafafa;
    --color-accent: #000000;
    --font-serif: 'Georgia', 'Times New Roman', serif;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    --max-width: 800px;
    --spacing-unit: 1rem;
}

/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 全局链接样式 */
a {
    color: var(--color-accent);
    text-decoration: none;
    transition: all 0.2s ease;
}

a:hover {
    opacity: 0.7;
}

/* 文章内容中的链接保持下划线 */
.post-detail-content a,
.page-body a {
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
}

.post-detail-content a:hover,
.page-body a:hover {
    opacity: 1;
    text-decoration-thickness: 2px;
}

/* 页面内容代码样式（与文章内容保持一致） */
.page-body code {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.875em;
    padding: 0.25em 0.5em;
    background-color: #f5f5f5;
    border: 1px solid #e0e0e0;
    border-radius: 3px;
    color: #d73a49;
    font-weight: 500;
}

.page-body pre {
    position: relative;
    margin: 2rem 0;
    padding: 0;
    background-color: #2d2d2d;
    border: 1px solid #404040;
    border-radius: 6px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.page-body pre code {
    display: block;
    padding: 1.5rem;
    background-color: transparent;
    color: #f8f8f2;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    overflow-x: auto;
    border: none;
    border-radius: 0;
}

.page-body pre code::-webkit-scrollbar {
    height: 8px;
}

.page-body pre code::-webkit-scrollbar-track {
    background: #1e1e1e;
    border-radius: 4px;
}

.page-body pre code::-webkit-scrollbar-thumb {
    background: #555;
    border-radius: 4px;
}

.page-body pre code::-webkit-scrollbar-thumb:hover {
    background: #777;
}

.page-body pre::before {
    content: '';
    display: block;
    height: 3px;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
}

/* 页面内容表格样式 */
.page-body table {
    width: 100%;
    margin: 2rem 0;
    border-collapse: separate;
    border-spacing: 0;
    border: 2px solid var(--color-border);
    border-radius: 6px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.page-body thead {
    background: linear-gradient(180deg, #f8f8f8 0%, #f0f0f0 100%);
}

.page-body th {
    padding: 1rem 1.25rem;
    text-align: left;
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--color-accent);
    border-bottom: 2px solid var(--color-border);
    letter-spacing: 0.02em;
    text-transform: uppercase;
    font-size: 0.85rem;
}

.page-body th:not(:last-child) {
    border-right: 1px solid var(--color-border);
}

.page-body td {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text);
    font-size: 0.95rem;
}

.page-body td:not(:last-child) {
    border-right: 1px solid var(--color-border);
}

.page-body tbody tr {
    transition: background-color 0.2s ease;
}

.page-body tbody tr:nth-child(even) {
    background-color: #fafafa;
}

.page-body tbody tr:hover {
    background-color: #f5f5f5;
}

.page-body tbody tr:last-child td {
    border-bottom: none;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

/* 头部样式 */
.site-header {
    border-bottom: 1px solid var(--color-border);
    padding: 3rem 0 2rem;
    margin-bottom: 3rem;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.site-branding {
    flex: 1;
}

.site-title {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
}

.site-title a {
    color: var(--color-accent);
    text-decoration: none;
    transition: opacity 0.2s;
}

.site-title a:hover {
    opacity: 0.7;
}

.site-description {
    font-size: 0.95rem;
    color: var(--color-text-light);
    font-style: italic;
}

/* 导航样式 */
.site-nav {
    flex-shrink: 0;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu li a {
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.95rem;
    letter-spacing: 0.02em;
    padding-bottom: 0.25rem;
    border-bottom: 2px solid transparent;
    transition: border-color 0.2s;
}

.nav-menu li.current a,
.nav-menu li a:hover {
    border-bottom-color: var(--color-accent);
}

/* 主内容区 */
.main-content {
    min-height: 60vh;
    margin-bottom: 4rem;
}

/* 文章列表样式 */
.post-item {
    padding: 3rem 0;
    border-bottom: 1px solid var(--color-border);
}

.post-item:first-child {
    padding-top: 0;
}

.post-header {
    margin-bottom: 1.5rem;
}

.post-title {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
}

.post-title a {
    color: var(--color-accent);
    text-decoration: none;
    transition: opacity 0.2s;
}

.post-title a:hover {
    opacity: 0.7;
}

.post-meta {
    font-size: 0.875rem;
    color: var(--color-text-light);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.post-meta .separator {
    color: var(--color-border);
}

.post-meta a {
    color: var(--color-text-light);
    text-decoration: none;
}

.post-meta a:hover {
    color: var(--color-accent);
}

/* 文章缩略图 */
.post-thumbnail {
    margin: 1.5rem 0;
    line-height: 0;
}

.post-thumbnail img {
    width: 100%;
    height: auto;
    display: block;
}

/* 文章摘要 */
.post-excerpt {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--color-text);
    margin-bottom: 1.5rem;
}

/* 文章底部 */
.post-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.read-more {
    color: var(--color-accent);
    text-decoration: none;
    font-size: 0.95rem;
    letter-spacing: 0.02em;
    transition: opacity 0.2s;
}

.read-more:hover {
    opacity: 0.7;
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 3rem;
    padding-top: 3rem;
    border-top: 1px solid var(--color-border);
}

.pagination a,
.pagination span {
    padding: 0.5rem 1rem;
    text-decoration: none;
    color: var(--color-text);
    border: 1px solid var(--color-border);
    transition: all 0.2s;
}

.pagination a:hover {
    background-color: var(--color-accent);
    color: var(--color-bg);
    border-color: var(--color-accent);
}

.pagination .current {
    background-color: var(--color-accent);
    color: var(--color-bg);
    border-color: var(--color-accent);
}

/* 底部样式 */
.site-footer {
    border-top: 1px solid var(--color-border);
    padding: 3rem 0;
    margin-top: 4rem;
    background-color: var(--color-bg-alt);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-info {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.footer-info p {
    margin-bottom: 0.25rem;
}

.footer-info a {
    color: var(--color-text);
    text-decoration: none;
}

.footer-info a:hover {
    text-decoration: underline;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 0 1.5rem;
    }

    .site-header {
        padding: 2rem 0 1.5rem;
    }

    .header-inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .site-title {
        font-size: 2rem;
    }

    .nav-menu {
        flex-wrap: wrap;
        gap: 1rem;
    }

    .post-title {
        font-size: 1.5rem;
    }

    .post-item {
        padding: 2rem 0;
    }

    .footer-content {
        flex-direction: column;
        align-items: flex-start;
    }
}