/* ============================================
   DeepSleep Blog - 高级灰+金色主题
   现代简约 · 杂志风格 · 局部色彩点缀
   ============================================ */

:root {
  /* 主色调：高级灰 */
  --color-bg-primary: #fafafa;
  --color-bg-secondary: #ffffff;
  --color-text-primary: #2d2d2d;
  --color-text-secondary: #666666;
  --color-text-muted: #999999;
  
  /* 点缀色：优雅金 */
  --color-accent: #D4AF37;
  --color-accent-light: #F4E5B2;
  --color-accent-dark: #B8960C;
  
  /* 功能色 */
  --color-border: #e0e0e0;
  --color-shadow: rgba(0, 0, 0, 0.08);
  --color-code-bg: #f5f5f5;
  
  /* 字体 */
  --font-serif: 'Georgia', 'Times New Roman', serif;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'SF Mono', 'Consolas', 'Monaco', monospace;
}

/* 全局基础样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text-primary);
  background: linear-gradient(135deg, #fafafa 0%, #f0f0f0 100%);
  line-height: 1.8;
  font-size: 16px;
  overflow-x: hidden;
}

/* ============================================
   顶部导航栏
   ============================================ */
.navbar {
  background: rgba(255, 255, 255, 0.95) !important;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 2px 20px var(--color-shadow);
  padding: 1rem 2rem !important;
}

.navbar .logo {
  font-family: var(--font-serif);
  font-size: 1.8rem !important;
  font-weight: 700;
  color: var(--color-text-primary) !important;
  text-decoration: none;
  transition: all 0.3s ease;
}

.navbar .logo:hover {
  color: var(--color-accent) !important;
  transform: scale(1.02);
}

.navbar .nav-links a {
  color: var(--color-text-secondary) !important;
  font-weight: 500;
  position: relative;
  padding: 0.5rem 1rem !important;
  transition: all 0.3s ease;
}

.navbar .nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

.navbar .nav-links a:hover {
  color: var(--color-accent) !important;
}

.navbar .nav-links a:hover::after {
  width: 80%;
}

/* ============================================
   首页头部区域
   ============================================ */
.home-info {
  background: linear-gradient(135deg, #ffffff 0%, #fafafa 100%);
  border-radius: 20px;
  padding: 3rem 2.5rem !important;
  margin: 2rem auto;
  max-width: 800px;
  box-shadow: 
    0 10px 40px rgba(0, 0, 0, 0.08),
    0 0 0 1px rgba(212, 175, 55, 0.1);
  border: 1px solid rgba(212, 175, 55, 0.15);
  position: relative;
  overflow: hidden;
}

.home-info::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(212, 175, 55, 0.05) 0%, transparent 70%);
  animation: rotate 20s linear infinite;
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.home-info .home-title {
  font-family: var(--font-serif);
  font-size: 2.5rem !important;
  font-weight: 700;
  color: var(--color-text-primary) !important;
  margin-bottom: 1rem !important;
  position: relative;
  display: inline-block;
}

.home-info .home-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
  border-radius: 2px;
}

/* ============================================
   文章卡片列表
   ============================================ */
.post-entry {
  background: var(--color-bg-secondary);
  border-radius: 16px;
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: 
    0 4px 20px var(--color-shadow),
    0 0 0 1px rgba(0, 0, 0, 0.03);
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  border-left: 4px solid transparent;
  position: relative;
  overflow: hidden;
}

.post-entry::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--color-accent), var(--color-accent-light));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.post-entry:hover {
  transform: translateY(-5px);
  box-shadow: 
    0 12px 40px rgba(0, 0, 0, 0.12),
    0 0 0 1px rgba(212, 175, 55, 0.2);
  border-left-color: var(--color-accent);
}

.post-entry:hover::before {
  opacity: 1;
}

.post-entry .entry-header .entry-title {
  font-family: var(--font-serif);
  font-size: 1.6rem !important;
  font-weight: 600;
  color: var(--color-text-primary) !important;
  margin-bottom: 0.8rem !important;
  transition: color 0.3s ease;
  line-height: 1.4;
}

.post-entry:hover .entry-title {
  color: var(--color-accent-dark) !important;
}

.post-entry .entry-hint {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.post-entry .entry-hint .entry-reading-time,
.post-entry .entry-hint .entry-date {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.post-entry .entry-content p {
  color: var(--color-text-secondary);
  line-height: 1.8;
  font-size: 1rem;
}

.post-entry .entry-footer {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.post-entry .entry-footer .entry-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* 标签样式 */
.entry-tags a,
.post-tags a {
  display: inline-block;
  padding: 0.35rem 0.9rem;
  background: linear-gradient(135deg, #f8f8f8, #efefef);
  color: var(--color-text-secondary);
  border-radius: 20px;
  font-size: 0.85rem;
  text-decoration: none;
  border: 1px solid var(--color-border);
  transition: all 0.3s ease;
  font-weight: 500;
}

.entry-tags a:hover,
.post-tags a:hover {
  background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
  color: #fff;
  border-color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(212, 175, 55, 0.3);
}

/* 继续阅读按钮 */
.more-link {
  display: inline-block;
  padding: 0.7rem 1.8rem;
  background: transparent;
  color: var(--color-accent-dark);
  text-decoration: none;
  border: 2px solid var(--color-accent);
  border-radius: 25px;
  font-weight: 600;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.more-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-dark));
  transition: left 0.3s ease;
  z-index: -1;
}

.more-link:hover {
  color: #fff;
  border-color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(212, 175, 55, 0.35);
}

.more-link:hover::before {
  left: 0;
}

/* ============================================
   单篇文章页面
   ============================================ */
.post-single {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem;
}

.post-single .post-header {
  text-align: center;
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 2px solid var(--color-border);
  position: relative;
}

.post-single .post-header h1.post-title {
  font-family: var(--font-serif);
  font-size: 2.8rem !important;
  font-weight: 700;
  color: var(--color-text-primary) !important;
  line-height: 1.3;
  margin-bottom: 1.5rem !important;
}

.post-single .post-meta {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.post-single .post-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

/* 文章正文内容 */
.post-content {
  font-size: 1.1rem;
  line-height: 2;
  color: var(--color-text-primary);
}

.post-content h2 {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-top: 3rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.8rem;
  border-bottom: 3px solid var(--color-accent-light);
  display: inline-block;
}

.post-content h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  padding-left: 1rem;
  border-left: 4px solid var(--color-accent);
}

.post-content p {
  margin-bottom: 1.5rem;
  text-align: justify;
}

.post-content strong {
  color: var(--color-text-primary);
  font-weight: 600;
}

.post-content em {
  color: var(--color-accent-dark);
  font-style: italic;
}

.post-content blockquote {
  margin: 2rem 0;
  padding: 1.5rem 2rem;
  background: linear-gradient(135deg, #fafafa, #f5f5f5);
  border-left: 5px solid var(--color-accent);
  border-radius: 0 12px 12px 0;
  font-style: italic;
  color: var(--color-text-secondary);
  position: relative;
  box-shadow: 0 4px 15px var(--color-shadow);
}

.post-content blockquote::before {
  content: '"';
  position: absolute;
  top: -10px;
  left: 15px;
  font-size: 4rem;
  color: var(--color-accent-light);
  font-family: Georgia, serif;
  line-height: 1;
}

.post-content code {
  background: var(--color-code-bg);
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.9em;
  color: var(--color-accent-dark);
  border: 1px solid var(--color-border);
}

.post-content pre {
  margin: 2rem 0;
  padding: 1.5rem;
  background: #282c34 !important;
  border-radius: 12px;
  overflow-x: auto;
  box-shadow: 
    0 10px 30px rgba(0, 0, 0, 0.15),
    inset 0 0 0 1px rgba(255, 255, 255, 0.05);
  position: relative;
}

.post-content pre code {
  background: none;
  padding: 0;
  border: none;
  color: #abb2bf;
  font-size: 0.95rem;
}

/* 表格样式 */
.post-content table {
  width: 100%;
  margin: 2rem 0;
  border-collapse: collapse;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px var(--color-shadow);
}

.post-content thead {
  background: linear-gradient(135deg, var(--color-text-primary), #444);
  color: #fff;
}

.post-content th {
  padding: 1rem;
  font-weight: 600;
  text-align: left;
}

.post-content td {
  padding: 1rem;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-secondary);
}

.post-content tbody tr:last-child td {
  border-bottom: none;
}

.post-content tbody tr:hover td {
  background: #fafafa;
}

/* 列表样式 */
.post-content ul,
.post-content ol {
  margin: 1.5rem 0;
  padding-left: 2rem;
}

.post-content li {
  margin-bottom: 0.8rem;
  position: relative;
}

.post-content ul li::marker {
  color: var(--color-accent);
  font-weight: bold;
}

/* 链接样式 */
.post-content a {
  color: var(--color-accent-dark);
  text-decoration: none;
  border-bottom: 2px solid var(--color-accent-light);
  transition: all 0.3s ease;
  padding: 0 0.2rem;
}

.post-content a:hover {
  background: var(--color-accent-light);
  color: #fff;
  border-bottom-color: var(--color-accent);
}

/* 图片样式 */
.post-content img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 8px 30px var(--color-shadow);
  margin: 2rem 0;
  transition: transform 0.3s ease;
}

.post-content img:hover {
  transform: scale(1.02);
}

/* 分隔线 */
.post-content hr {
  border: none;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  margin: 3rem 0;
  opacity: 0.5;
}

/* ============================================
   文章底部信息
   ============================================ */
.post-footer {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 2px solid var(--color-border);
}

.post-footer .post-tags {
  margin-bottom: 2rem;
}

/* 上下篇导航 */
.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 3rem;
}

.post-nav .nav-prev,
.post-nav .nav-next {
  padding: 1.5rem;
  background: var(--color-bg-secondary);
  border-radius: 12px;
  box-shadow: 0 4px 15px var(--color-shadow);
  transition: all 0.3s ease;
  border: 1px solid transparent;
}

.post-nav .nav-prev:hover,
.post-nav .nav-next:hover {
  border-color: var(--color-accent);
  box-shadow: 0 6px 25px rgba(212, 175, 55, 0.2);
  transform: translateY(-3px);
}

/* ============================================
   侧边栏
   ============================================ */
.sidebar {
  background: var(--color-bg-secondary);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 4px 20px var(--color-shadow);
}

.sidebar .sidebar-title {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 1.5rem;
  padding-bottom: 0.8rem;
  border-bottom: 2px solid var(--color-accent-light);
  display: inline-block;
}

/* ============================================
   页脚
   ============================================ */
/* 页脚：全宽 + 主题感知背景
   修复点：
   1. max-width: 100% 覆盖 PaperMod footer.css 的 768px 限制，消除两侧空白
   2. 背景改用主题感知颜色，白天模式不再为黑色
   3. 链接颜色随主题切换，保证对比度 */
.footer {
  max-width: 100% !important; /* 覆盖 PaperMod 的 calc(var(--main-width) + var(--gap) * 2) = 768px */
  background: linear-gradient(135deg, #ffffff 0%, #fafafa 100%) !important; /* 白天模式：浅色 */
  color: var(--color-text-secondary) !important;
  padding: 2.5rem 2rem !important;
  margin-top: 4rem;
  border-top: 4px solid var(--color-accent);
}

.footer .footer-content {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.footer .footer-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.footer a {
  color: var(--color-accent-dark); /* 白天模式：深金色链接，保证对比度 */
  text-decoration: none;
  transition: color 0.3s ease;
}

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

/* 暗色模式：深色背景 + 浅色链接 */
[data-theme="dark"] .footer {
  background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%) !important;
  color: var(--secondary) !important;
}

[data-theme="dark"] .footer a {
  color: var(--color-accent-light); /* 暗色模式：浅金色链接 */
}

/* ============================================
   搜索页面
   ============================================ */
.search-page .search-results {
  max-width: 800px;
  margin: 2rem auto;
}

.search-page .search-result-item {
  background: var(--color-bg-secondary);
  padding: 1.5rem;
  margin-bottom: 1rem;
  border-radius: 12px;
  box-shadow: 0 2px 10px var(--color-shadow);
  transition: all 0.3s ease;
  border-left: 3px solid transparent;
}

.search-page .search-result-item:hover {
  border-left-color: var(--color-accent);
  transform: translateX(5px);
}

/* ============================================
   动画效果
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.post-entry,
.home-info,
.post-single {
  animation: fadeInUp 0.6s ease-out;
}

/* ============================================
   响应式设计
   ============================================ */
@media (max-width: 768px) {
  .navbar {
    padding: 1rem !important;
  }
  
  .home-info {
    padding: 2rem 1.5rem !important;
    margin: 1rem;
  }
  
  .home-info .home-title {
    font-size: 2rem !important;
  }
  
  .post-single .post-header h1.post-title {
    font-size: 2rem !important;
  }
  
  .post-entry {
    padding: 1.5rem;
  }
  
  .post-nav {
    grid-template-columns: 1fr;
  }
  
  .post-content {
    font-size: 1rem;
  }
  
  .post-content h2 {
    font-size: 1.6rem;
  }
}

/* ============================================
   滚动条美化
   ============================================ */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 5px;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--color-accent-light), var(--color-accent));
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-accent-dark);
}

/* ============================================
   选择文本颜色
   ============================================ */
::selection {
  background: var(--color-accent-light);
  color: var(--color-text-primary);
}

::-moz-selection {
  background: var(--color-accent-light);
  color: var(--color-text-primary);
}