/* =====================================
   文章详情页 (post.html) 专属样式
===================================== */
.post-navigation {
    max-width: 800px;
    margin: 0 auto 20px auto;
}

.back-btn {
    font-size: 0.85rem;
    font-weight: 900;
    letter-spacing: 1px;
    color: var(--text-charcoal);
    transition: color 0.2s ease;
}

.back-btn:hover {
    color: var(--accent-red);
}

.post-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

.loading-text, .error-text {
    font-size: 0.9rem;
    font-weight: 900;
    letter-spacing: 1px;
    color: var(--text-charcoal);
}

.error-text {
    color: var(--accent-red);
}

/* Markdown 排版 */
.markdown-body {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-charcoal);
}

.markdown-body h1 {
    font-size: 2.8rem;
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -1px;
    text-transform: uppercase;
    margin-bottom: 30px;
}

.markdown-body h2 {
    font-size: 1.8rem;
    font-weight: 900;
    letter-spacing: -0.5px;
    text-transform: uppercase;
    margin: 50px 0 20px 0;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(26, 26, 26, 0.15);
}

.markdown-body h3 {
    font-size: 1.3rem;
    font-weight: 900;
    letter-spacing: -0.3px;
    text-transform: uppercase;
    margin: 36px 0 16px 0;
}

.markdown-body p {
    margin-bottom: 24px;
}

.markdown-body a {
    color: var(--text-charcoal);
    text-decoration: underline;
    text-decoration-color: var(--accent-red);
    text-underline-offset: 4px;
    transition: color 0.2s ease;
}

.markdown-body a:hover {
    color: var(--accent-red);
}

.markdown-body blockquote {
    border-left: 2px solid var(--accent-red);
    padding-left: 20px;
    margin: 32px 0;
    font-style: italic;
    opacity: 0.85;
}

.markdown-body ul, 
.markdown-body ol {
    margin: 0 0 24px 24px;
}

.markdown-body li {
    margin-bottom: 8px;
}

.markdown-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 32px 0;
    font-size: 0.9rem;
}

.markdown-body th, 
.markdown-body td {
    border: 1px solid var(--text-charcoal);
    padding: 10px 14px;
    text-align: left;
}

.markdown-body th {
    background-color: #EAE8E3;
    font-weight: 900;
}

.footnotes {
    margin-top: 60px;
    padding-top: 20px;
    border-top: 1px solid var(--accent-red);
    font-size: 0.85rem;
}

/* =====================================
   1. 文章头部属性 (Front Matter) 瑞士风格样式
===================================== */
.post-header {
    margin-bottom: 32px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--accent-red);
}

.post-category {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 900;
    letter-spacing: 1.5px;
    color: var(--accent-red);
    text-transform: uppercase;
    margin-bottom: 12px;
}

.post-title {
    font-size: 2.4rem;
    font-weight: 900;
    line-height: 1.25;
    color: var(--text-charcoal);
    margin: 0 0 16px 0;
    letter-spacing: -0.5px;
}

.post-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px;
    font-size: 0.85rem;
    color: #666;
    font-weight: 700;
}

.post-date {
    letter-spacing: 1px;
}

.post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag-badge {
    background-color: #EAE8E3;
    color: var(--text-charcoal);
    padding: 2px 8px;
    border-radius: 2px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

/* =====================================
   2. 代码块与 Consolas 字体专属样式
===================================== */
/* 指定代码块统一使用 Consolas 极客等宽字体 */
.markdown-body pre,
.markdown-body code,
.code-block-wrapper pre,
.code-block-wrapper code,
.code-header {
    font-family: 'Consolas', Monaco, 'Courier New', Courier, monospace !important;
}

/* 行内代码样式 (非代码块) */
.markdown-body code:not(pre code) {
    background-color: #EAE8E3;
    color: var(--accent-red);
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.9em;
}

/* 代码块外层黑客风容器 */
.code-block-wrapper {
    margin: 24px 0;
    border: 1px solid var(--text-charcoal);
    background-color: #0d1117; /* GitHub Dark 代码块背景 */
    border-radius: 4px;
    overflow: hidden;
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #161b22;
    padding: 8px 16px;
    border-bottom: 1px solid #30363d;
    font-size: 0.75rem;
    font-weight: 900;
    letter-spacing: 1px;
}

.code-lang {
    color: var(--accent-red);
}

.copy-btn {
    background: transparent;
    border: 1px solid #484f58;
    color: #c9d1d9;
    padding: 4px 10px;
    font-size: 0.7rem;
    font-weight: 700;
    cursor: pointer;
    border-radius: 3px;
    transition: all 0.2s ease;
}

.copy-btn:hover {
    border-color: #8b949e;
    color: #ffffff;
}

.copy-btn.copied {
    border-color: #238636;
    color: #3fb950;
}

.markdown-body pre {
    margin: 0 !important;
    padding: 16px !important;
    background: #0d1117 !important;
    overflow-x: auto;
}

/* 核心修复点：强制代码块的基础文本为 GitHub 浅灰白色 (#c9d1d9)，防止继承正文的纯黑色导致文字隐形 */
.markdown-body pre code {
    font-size: 0.9rem;
    line-height: 1.5;
    background: transparent !important;
    padding: 0 !important;
    color: #c9d1d9 !important; 
}

/* =====================================
   3. 图片自适应与放大灯箱样式
===================================== */
.markdown-body img {
    max-width: 100% !important;
    height: auto !important;
    display: block;
    margin: 24px auto;
    border: 1px solid var(--text-charcoal);
    cursor: zoom-in;
    transition: opacity 0.2s ease;
}

.markdown-body img:hover {
    opacity: 0.85;
}

.lightbox-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(26, 26, 26, 0.92);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease-in-out;
    cursor: zoom-out;
}

.lightbox-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.lightbox-overlay img {
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
    border: 1px solid #FFFFFF;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}