/* 预览卡片的高级阴影 */
.article-preview-card {
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.05), 0 5px 15px rgba(0, 0, 0, 0.03);
    border: 1px solid rgba(0, 0, 0, 0.03);
}

.view-section, .preview-section {
    display: none !important;
}
.view-section.active {
    display: flex !important;
    flex-direction: column;
    height: 100%;
}
.preview-section.active {
    display: flex !important;
    flex-direction: column;
    align-items: center;
    width: 100%;
    height: auto;
    min-height: 100%;
}

/* 预览区主题样式 */
#preview-container.theme-dark .article-preview-card { background-color: #1a1a1a; color: #e0e0e0; }
#preview-container.theme-dark .article-preview-card h1,
#preview-container.theme-dark .article-preview-card h2,
#preview-container.theme-dark .article-preview-card h3 { color: #ffffff; }

#preview-container.theme-simple .article-preview-card { border: 2px solid #000; box-shadow: none; border-radius: 0; }

#preview-container.theme-cream .article-preview-card { background-color: rgba(253, 245, 230, var(--theme-intensity, 1)); color: #5c4b37; }
#preview-container.theme-green .article-preview-card { background-color: rgba(240, 247, 234, var(--theme-intensity, 1)); color: #2d3a22; }
#preview-container.theme-blue .article-preview-card { background-color: rgba(240, 248, 255, var(--theme-intensity, 1)); color: #2c3e50; }
#preview-container.theme-pink .article-preview-card { background-color: rgba(255, 245, 247, var(--theme-intensity, 1)); color: #4a2c2c; }
#preview-container.theme-purple .article-preview-card { background-color: rgba(248, 240, 255, var(--theme-intensity, 1)); color: #3b2c4a; }

/* Markdown 预览基础样式 (参考 article.html 深度优化) */
.prose {
    font-size: var(--preview-font-size, 17px);
    line-height: var(--preview-line-height, 1.8);
    letter-spacing: var(--preview-letter-spacing, 0.5px);
    color: #333;
    word-wrap: break-word;
    
    /* 表格主题变量 */
    --table-border: #e5e7eb;
    --table-header-bg: #f9fafb;
    --table-zebra-bg: #fcfcfc;
    --code-bg: #f3f4f6;
    --code-color: #eb5757;
    --pre-bg: #1f2937;
    --pre-color: #e5e7eb;
}

.article-preview-card {
    padding: var(--preview-padding, 32px) !important;
}

.prose h1 { 
    font-size: 1.6em; 
    font-weight: bold; 
    line-height: 1.4;
    margin-bottom: 0.8em;
    color: var(--theme-color, #333);
}

.prose h2 { 
    font-size: 1.4em; 
    font-weight: bold; 
    line-height: 1.4;
    margin-bottom: 0.6em;
    color: var(--theme-color, #333);
}

.prose h3 { 
    font-size: 1.2em; 
    font-weight: bold; 
    line-height: 1.4;
    margin-top: 1em;
    margin-bottom: 0.5em;
    color: var(--theme-color, #4b5563);
}

.prose p { 
    margin-bottom: 1.5em; 
    line-height: inherit; 
}

.prose ul { 
    padding-left: 1.5em; 
    margin-bottom: 1.5em; 
    list-style-type: disc;
}

.prose ol { 
    padding-left: 1.5em; 
    margin-bottom: 1.5em; 
    list-style-type: decimal;
}

.prose li {
    margin-bottom: 0.8em;
    line-height: 1.6;
}

/* 列表标志美化 */
.prose li::marker {
    color: var(--theme-color, #ef4444);
    font-weight: bold;
}

/* 任务列表样式 */
.prose li input[type="checkbox"] {
    margin-right: 8px;
    accent-color: var(--theme-color, #ef4444);
}

.prose img { 
    max-width: 100%; 
    border-radius: 8px; 
    margin: 1.5em 0;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.prose hr { 
    margin: 2em 0; 
    border: 0; 
    border-top: 1px solid var(--table-border); 
}

/* 表格增强样式 (圆角版) */
.prose table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin: 1.5em 0;
    font-size: 0.95em;
    line-height: 1.5;
    border: 1px solid var(--table-border);
    border-radius: 8px;
    overflow: hidden;
}

.prose th, 
.prose td {
    border: none;
    border-bottom: 1px solid var(--table-border);
    border-right: 1px solid var(--table-border);
    padding: 12px 16px;
    text-align: left;
}

.prose th:last-child,
.prose td:last-child {
    border-right: none;
}

.prose tr:last-child td {
    border-bottom: none;
}

.prose th {
    background-color: var(--table-header-bg);
    font-weight: 600;
    color: inherit;
}

.prose tr:nth-child(even) {
    background-color: var(--table-zebra-bg);
}

/* 代码块与行内代码 */
.prose code {
    background-color: var(--code-bg);
    color: var(--code-color);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.9em;
}

.prose pre {
    background-color: var(--pre-bg);
    color: var(--pre-color);
    padding: 1.2em;
    border-radius: 8px;
    overflow-x: auto;
    margin: 1.5em 0;
    line-height: 1.6;
    border-left: 4px solid var(--theme-color, #ef4444);
}

.prose pre code {
    background-color: transparent;
    color: inherit;
    padding: 0;
    border-radius: 0;
    font-size: 0.9em;
}

/* 高亮 (mark) 样式 - 划线效果 */
.prose mark {
    background-color: transparent;
    background-image: linear-gradient(to bottom, transparent 60%, rgba(239, 68, 68, 0.4) 40%);
    color: inherit;
    padding: 0 2px;
    border-radius: 0;
}

/* 下划线样式 */
.prose u {
    text-decoration: underline;
    text-decoration-color: var(--theme-color, #ef4444);
    text-decoration-thickness: 2px;
    text-underline-offset: 3px;
}

/* 删除线样式 */
.prose s,
.prose del {
    text-decoration: line-through;
    text-decoration-color: var(--theme-color, #ef4444);
    text-decoration-thickness: 2px;
}

/* 引用 (blockquote) 样式 */
.prose blockquote {
    border-left: 6px solid #ef4444;
    background-color: rgba(239, 68, 68, 0.08);
    padding: 14px 18px;
    margin: 1.5em 0;
    border-radius: 4px;
    color: #4b5563;
    box-shadow: 2px 2px 6px rgba(0, 0, 0, 0.05); /* 增加微弱阴影 */
    font-style: normal; /* 移除默认斜体 */
}

.prose blockquote p {
    margin-bottom: 0.5em;
}

.prose blockquote p:last-child {
    margin-bottom: 0;
}

/* 主题适配样式 */
.theme-dark .prose { 
    color: #ccc; 
    --table-border: #374151;
    --table-header-bg: #1f2937;
    --table-zebra-bg: #262626;
    --code-bg: #262626;
    --code-color: #f87171;
    --theme-color: #f87171;
}
.theme-dark .prose h1,
.theme-dark .prose h2,
.theme-dark .prose h3 { color: #fff; }

.theme-dark .prose mark {
    background-image: linear-gradient(to bottom, transparent 60%, rgba(239, 68, 68, 0.8) 40%);
}

.theme-dark .prose blockquote {
    background-color: rgba(255, 255, 255, 0.08);
    border-left-color: #f87171;
    color: #d1d5db;
}

.theme-simple .prose {
    --table-border: #d1d5db;
    --table-header-bg: #f3f4f6;
    --table-zebra-bg: #f9fafb;
    --theme-color: #000000;
}
.theme-simple .prose mark {
    background-image: linear-gradient(to bottom, transparent 60%, rgba(0, 0, 0, 0.2) 40%);
}
.theme-simple .prose blockquote {
    background-color: #f3f4f6;
    border-left-color: #d1d5db;
    color: #6b7280;
}

.theme-cream .prose {
    --table-border: #d7ccc8;
    --table-header-bg: rgba(141, 110, 99, 0.15);
    --table-zebra-bg: #fdfaf8;
    --code-bg: #efebe9;
    --code-color: #8d6e63;
    --theme-color: #8d6e63;
}
.theme-cream .prose mark {
    background-image: linear-gradient(to bottom, transparent 60%, rgba(255, 193, 7, 0.4) 40%);
}
.theme-cream .prose blockquote {
    background-color: rgba(93, 64, 55, 0.08);
    border-left-color: #8d6e63;
    color: #5d4037;
}

.theme-green .prose {
    --table-border: #c8e6c9;
    --table-header-bg: #e8f5e9;
    --table-zebra-bg: #f1f8f1;
    --code-bg: #e8f5e9;
    --code-color: #388e3c;
    --theme-color: #388e3c;
}
.theme-green .prose mark {
    background-image: linear-gradient(to bottom, transparent 60%, rgba(139, 195, 74, 0.3) 40%);
}
.theme-green .prose blockquote {
    background-color: rgba(27, 94, 32, 0.08);
    border-left-color: #388e3c;
    color: #1b5e20;
}

.theme-pink .prose {
    --table-border: #f8bbd0;
    --table-header-bg: #fce4ec;
    --table-zebra-bg: #fff1f6;
    --code-bg: #fce4ec;
    --code-color: #c2185b;
    --theme-color: #c2185b;
}
.theme-pink .prose mark {
    background-image: linear-gradient(to bottom, transparent 60%, rgba(255, 105, 180, 0.3) 40%);
}
.theme-pink .prose blockquote {
    background-color: rgba(136, 14, 79, 0.08);
    border-left-color: #c2185b;
    color: #880e4f;
}

.theme-purple .prose {
    --table-border: #e1bee7;
    --table-header-bg: #f3e5f5;
    --table-zebra-bg: #f9f2fb;
    --code-bg: #f3e5f5;
    --code-color: #7b1fa2;
    --theme-color: #7b1fa2;
}
.theme-purple .prose mark {
    background-image: linear-gradient(to bottom, transparent 60%, rgba(155, 89, 182, 0.3) 40%);
}
.theme-purple .prose blockquote {
    background-color: rgba(74, 20, 140, 0.08);
    border-left-color: #7b1fa2;
    color: #4a148c;
}

.theme-blue .prose {
    --table-border: #bbdefb;
    --table-header-bg: #e3f2fd;
    --table-zebra-bg: #f1f9ff;
    --code-bg: #e3f2fd;
    --code-color: #1976d2;
    --theme-color: #2196f3;
}
.theme-blue .prose mark {
    background-image: linear-gradient(to bottom, transparent 60%, rgba(33, 150, 243, 0.4) 40%);
}
.theme-blue .prose blockquote {
    background-color: rgba(33, 150, 243, 0.08);
    border-left-color: #2196f3;
    color: #0d47a1;
}

/* 封面高亮样式 - 随主题变化的半高背景条 */
#cover-canvas mark {
    background-color: transparent;
    /* 使用 CSS 变量，默认值为红色半透明 */
    background-image: linear-gradient(to bottom, transparent 45%, var(--cover-mark-color, rgba(239, 68, 68, 0.25)) 45%);
    color: inherit;
    padding: 0 2px;
    border-radius: 0;
}