/*==================================
   Modern Duang Theme
==================================*/

/* 变量定义 */
:root {
  /* 颜色 */
  --primary: #4F46E5;
  --primary-light: #818CF8;
  --secondary: #818CF8;
  --cta: #F97316;
  --cta-hover: #EA580C;
  
  /* 背景 */
  --bg-main: #EEF2FF;
  --bg-card: #FFFFFF;
  --bg-elevated: #F8FAFF;
  
  /* 文字 */
  --text-primary: #1E1B4B;
  --text-secondary: #4B5563;
  --text-muted: #9CA3AF;
  
  /* 柔和粉彩 */
  --pastel-pink: #FDBCB4;
  --pastel-blue: #ADD8E6;
  --pastel-mint: #98FF98;
  --pastel-lilac: #E6E6FA;
  --pastel-yellow: #FFFACD;
  
  /* 阴影 */
  --shadow-clay: 
    inset -2px -2px 8px rgba(255, 255, 255, 0.8),
    inset 2px 2px 8px rgba(0, 0, 0, 0.1),
    4px 4px 12px rgba(79, 70, 229, 0.15);
  --shadow-clay-hover:
    inset -2px -2px 8px rgba(255, 255, 255, 0.9),
    inset 2px 2px 8px rgba(0, 0, 0, 0.08),
    6px 6px 20px rgba(79, 70, 229, 0.2);
  --shadow-pressed:
    inset 2px 2px 8px rgba(0, 0, 0, 0.15),
    inset -2px -2px 8px rgba(255, 255, 255, 0.5);
  
  /* 圆角 */
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-pill: 9999px;
  
  /* 字体 */
  --font-display: 'Fredoka', 'Nunito', sans-serif;
  --font-body: 'Nunito', -apple-system, sans-serif;
  
  /* 间距 */
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;
  --spacing-section: 96px;
}

/* 深色模式 */
[data-theme="dark"] {
  --bg-main: #0f172a;
  --bg-card: #1e293b;
  --bg-elevated: #334155;
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;
  --pastel-pink: #4c1d36;
  --pastel-blue: #1e3a5f;
  --pastel-mint: #1a3a2a;
  --pastel-lilac: #2d2047;
  --pastel-yellow: #3d3520;
  --shadow-clay:
    inset -2px -2px 8px rgba(255, 255, 255, 0.05),
    inset 2px 2px 8px rgba(0, 0, 0, 0.3),
    4px 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-clay-hover:
    inset -2px -2px 8px rgba(255, 255, 255, 0.08),
    inset 2px 2px 8px rgba(0, 0, 0, 0.2),
    6px 6px 20px rgba(0, 0, 0, 0.5);
}

[data-theme="dark"] body::before {
  background: radial-gradient(circle, rgba(45, 32, 71, 0.4) 0%, transparent 70%);
}

[data-theme="dark"] body::after {
  background: radial-gradient(circle, rgba(76, 29, 54, 0.4) 0%, transparent 70%);
}

/* 深色模式 - 标签样式 */
[data-theme="dark"] .tag-item {
  box-shadow:
    inset -2px -2px 6px rgba(255, 255, 255, 0.05),
    inset 2px 2px 6px rgba(0, 0, 0, 0.2),
    3px 3px 8px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .tag-item:hover {
  box-shadow:
    inset -2px -2px 8px rgba(255, 255, 255, 0.08),
    inset 2px 2px 8px rgba(0, 0, 0, 0.15),
    6px 6px 16px rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] .tag-color-cold {
  background: linear-gradient(135deg, var(--bg-card), var(--bg-elevated));
}

[data-theme="dark"] .tag-color-cool {
  background: linear-gradient(135deg, rgba(164, 212, 197, 0.15), rgba(164, 212, 197, 0.05));
}

[data-theme="dark"] .tag-color-warm {
  background: linear-gradient(135deg, rgba(184, 164, 237, 0.15), rgba(184, 164, 237, 0.05));
}

[data-theme="dark"] .tag-color-hot {
  background: linear-gradient(135deg, rgba(253, 188, 180, 0.2), rgba(253, 188, 180, 0.05));
  box-shadow:
    inset -2px -2px 6px rgba(255, 255, 255, 0.05),
    inset 2px 2px 6px rgba(0, 0, 0, 0.2),
    3px 3px 12px rgba(253, 188, 180, 0.15);
}

[data-theme="dark"] .tag-item .tag-icon {
  color: white;
  opacity: 0.9;
}

[data-theme="dark"] .tag-item .tag-count {
  color: white;
  opacity: 0.9;
}

[data-theme="dark"] .tag-item::before {
  color: white;
}

/* 重置 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-main);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

/* 装饰性背景元素 */
body::before {
  content: '';
  position: fixed;
  top: 10%;
  right: -5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--pastel-lilac) 0%, transparent 70%);
  border-radius: 50%;
  opacity: 0.5;
  pointer-events: none;
  z-index: -1;
}

body::after {
  content: '';
  position: fixed;
  bottom: 10%;
  left: -5%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, var(--pastel-pink) 0%, transparent 70%);
  border-radius: 50%;
  opacity: 0.5;
  pointer-events: none;
  z-index: -1;
}

/* 容器 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
}

/* 深色模式切换按钮 */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--bg-main);
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-clay);
  color: var(--text-secondary);
  flex-shrink: 0;
}

.theme-toggle:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-clay-hover);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
}

[data-theme="light"] .icon-sun {
  display: none;
}

[data-theme="light"] .icon-moon {
  display: block;
}

[data-theme="dark"] .icon-sun {
  display: block;
}

[data-theme="dark"] .icon-moon {
  display: none;
}

.mobile-theme-toggle {
  padding: var(--spacing-md);
  border-top: 1px dashed var(--bg-main);
}

.mobile-theme-toggle .theme-toggle {
  width: 100%;
  height: auto;
  padding: var(--spacing-md);
  border-radius: var(--radius-sm);
  justify-content: flex-start;
  gap: var(--spacing-sm);
  font-size: 16px;
  font-weight: 600;
  color: var(--text-secondary);
}

.mobile-theme-toggle .theme-toggle span {
  flex: 1;
  text-align: left;
}

/*==================================
   导航栏 - 蓬松效果
==================================*/
.site-header {
  position: fixed;
  top: var(--spacing-md);
  left: var(--spacing-md);
  right: var(--spacing-md);
  z-index: 1000;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-clay);
  height: 64px;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.nav-logo-icon {
  width: 32px;
  height: 32px;
  background: var(--primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 18px;
}

.nav-links {
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  color: var(--text-secondary);
  text-decoration: none;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-icon {
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-icon svg {
  width: 100%;
  height: 100%;
}

.nav-links a:hover {
  color: var(--primary);
  background: var(--bg-main);
}

.nav-links a.active {
  color: var(--primary);
  background: rgba(79, 70, 229, 0.1);
}

/* 下拉菜单 */
.nav-dropdown {
  position: relative;
}

.dropdown-trigger {
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
}

.dropdown-arrow {
  display: flex;
  align-items: center;
  transition: transform 0.2s ease;
}

.nav-dropdown.is-open .dropdown-arrow {
  transform: rotate(180deg);
}

.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 160px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-clay);
  padding: var(--spacing-sm) 0;
  margin-top: var(--spacing-xs);
  z-index: 1000;
  list-style: none;
}

.dropdown-menu li a {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 14px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.dropdown-menu li a:hover {
  background: var(--bg-main);
  color: var(--primary);
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: var(--bg-main);
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--radius-sm);
}

.mobile-menu-btn span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* 移动端菜单 */
.mobile-menu {
  display: none;
  position: fixed;
  top: 88px;
  left: var(--spacing-md);
  right: var(--spacing-md);
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-clay);
  z-index: 999;
  overflow: hidden;
}

.mobile-menu.is-open {
  display: block;
  animation: bounceIn 0.3s ease;
}

@keyframes bounceIn {
  0% { transform: scale(0.95); opacity: 0; }
  50% { transform: scale(1.02); }
  100% { transform: scale(1); opacity: 1; }
}

.mobile-menu-links {
  list-style: none;
  padding: var(--spacing-md);
}

.mobile-menu-links a {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 16px;
  font-weight: 600;
  color: var(--text-secondary);
  text-decoration: none;
  padding: var(--spacing-md);
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.mobile-menu-links a:hover {
  color: var(--primary);
  background: var(--bg-main);
}

/* 移动端下拉菜单 */
.mobile-dropdown-trigger {
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.mobile-dropdown-menu {
  display: none;
  list-style: none;
  padding-left: var(--spacing-xl);
}

.mobile-dropdown-menu li a {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 14px;
  color: var(--text-muted);
}

.mobile-dropdown-menu li a:hover {
  color: var(--primary);
  background: var(--bg-main);
}

.mobile-dropdown.is-open .dropdown-arrow {
  transform: rotate(180deg);
}

/*==================================
   Hero 区域 - 蓬松卡片
==================================*/
.hero {
  min-height: calc(100vh - 120px);
  display: flex;
  align-items: center;
  padding-top: 180px;
  padding-bottom: var(--spacing-section);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: var(--spacing-xxl);
  align-items: center;
  width: 100%;
}

.hero-content {
  max-width: 560px;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  background: var(--pastel-lilac);
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-pill);
  margin-bottom: var(--spacing-xl);
}

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 600;
  line-height: 1.1;
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
  letter-spacing: -0.5px;
}

.hero-name span {
  color: var(--primary);
}

.hero-tagline {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--spacing-xl);
}

.hero-actions {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

/* Hero 右侧蓬松装饰 */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-clay-card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-clay);
  padding: var(--spacing-xl);
  width: 100%;
  max-width: 400px;
  position: relative;
}

.clay-shape {
  position: absolute;
  border-radius: 50%;
}

.clay-shape-1 {
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, var(--pastel-pink), var(--pastel-lilac));
  top: -30px;
  right: -30px;
  box-shadow: var(--shadow-clay);
  animation: float 3s ease-in-out infinite;
}

.clay-shape-2 {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--pastel-blue), var(--pastel-mint));
  bottom: -20px;
  left: -20px;
  box-shadow: var(--shadow-clay);
  animation: float 3s ease-in-out infinite 0.5s;
}

.clay-shape-3 {
  width: 60px;
  height: 60px;
  background: var(--pastel-yellow);
  top: 50%;
  right: -40px;
  box-shadow: var(--shadow-clay);
  animation: float 3s ease-in-out infinite 1s;
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-10px) rotate(5deg); }
}

/* 博主信息卡片 */
.profile-card {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-lg);
  position: relative;
  z-index: 1;
}

.profile-avatar {
  position: relative;
  width: 100px;
  height: 100px;
  margin: 0 auto var(--spacing-lg);
  display: block;
  text-decoration: none;
}

.profile-avatar img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--bg-card);
  box-shadow: var(--shadow-clay);
  transition: transform 0.3s ease;
}

.profile-avatar:hover img {
  transform: scale(1.05);
}

.profile-status {
  position: absolute;
  bottom: 4px;
  right: 4px;
  width: 16px;
  height: 16px;
  background: #22c55e;
  border-radius: 50%;
  border: 3px solid var(--bg-card);
  box-shadow: var(--shadow-clay);
}

.profile-name {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
  text-decoration: none;
  display: block;
  transition: color 0.2s ease;
}

.profile-name:hover {
  color: var(--primary);
}

.profile-motto {
  font-size: 14px;
  color: var(--text-muted);
  font-style: italic;
  margin-bottom: var(--spacing-lg);
  text-decoration: none;
  display: block;
  transition: color 0.2s ease;
}

.profile-motto:hover {
  color: var(--primary);
}

.profile-social {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-sm);
  max-width: 220px;
  margin: 0 auto;
}

.profile-social .social-icon:nth-child(n+5) {
  margin-top: var(--spacing-xs);
}

.social-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--bg-main);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-clay);
}

.social-icon svg {
  width: 18px;
  height: 18px;
}

.social-icon:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-clay-hover);
  background: var(--primary);
  color: white;
}

.social-icon.github:hover { background: #24292e; }
.social-icon.bilibili:hover { background: #fb7299; }
.social-icon.email:hover { background: var(--primary); }
.social-icon.blog:hover { background: var(--cta); }
.social-icon.tiktok:hover { background: #00f2ea; }
.social-icon.kuaishou:hover { background: #ff6600; }
.social-icon.xiaohongshu:hover { background: #ff2442; }
.social-icon.gitee:hover { background: #c71d23; }
.social-icon.qq:hover { background: #12b7f5; }
.social-icon.wechat:hover { background: #07c160; }

/*==================================
   按钮 - 蓬松按压效果
==================================*/
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  padding: 14px 28px;
  min-height: 48px;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  border: 3px solid transparent;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.3) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.btn:hover::before {
  opacity: 1;
}

.btn:active {
  transform: scale(0.96);
  box-shadow: var(--shadow-pressed);
}

.btn-primary {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  box-shadow: 
    inset -2px -2px 8px rgba(255, 255, 255, 0.2),
    inset 2px 2px 8px rgba(0, 0, 0, 0.1),
    0 4px 12px rgba(79, 70, 229, 0.3);
}

.btn-primary:hover {
  background: #4338CA;
  border-color: #4338CA;
  transform: translateY(-2px);
  box-shadow: 
    inset -2px -2px 8px rgba(255, 255, 255, 0.2),
    inset 2px 2px 8px rgba(0, 0, 0, 0.1),
    0 6px 20px rgba(79, 70, 229, 0.4);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--primary);
  border-color: var(--primary);
  box-shadow: var(--shadow-clay);
}

.btn-secondary:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-clay-hover);
}

.btn-cta {
  background: var(--cta);
  color: white;
  border-color: var(--cta);
  box-shadow: 
    inset -2px -2px 8px rgba(255, 255, 255, 0.2),
    inset 2px 2px 8px rgba(0, 0, 0, 0.1),
    0 4px 12px rgba(249, 115, 22, 0.3);
}

.btn-cta:hover {
  background: var(--cta-hover);
  border-color: var(--cta-hover);
  transform: translateY(-2px);
  box-shadow: 
    inset -2px -2px 8px rgba(255, 255, 255, 0.2),
    inset 2px 2px 8px rgba(0, 0, 0, 0.1),
    0 6px 20px rgba(249, 115, 22, 0.4);
}

.btn-on-card {
  background: white;
  color: var(--primary);
  border-color: white;
  box-shadow: var(--shadow-clay);
}

.btn-on-card:hover {
  background: var(--bg-main);
  transform: translateY(-2px);
}

/*==================================
   Section 通用样式
==================================*/
.section {
  padding: var(--spacing-section) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xxl);
}

.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--primary);
  background: rgba(79, 70, 229, 0.1);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-pill);
  margin-bottom: var(--spacing-md);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 600;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

.section-desc {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/*==================================
   特色卡片 - 蓬松效果
==================================*/
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.feature-card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-clay);
  transition: all 0.3s ease;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--card-color, var(--primary));
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-clay-hover);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-card-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--shadow-clay);
}

.feature-card-icon svg {
  width: 32px;
  height: 32px;
}

/* 不同颜色的卡片 */
.feature-card-pink {
  --card-color: var(--pastel-pink);
}
.feature-card-pink .feature-card-icon {
  background: var(--pastel-pink);
}
.feature-card-pink .feature-card-icon svg {
  color: #C25A4A;
}

.feature-card-blue {
  --card-color: var(--pastel-blue);
}
.feature-card-blue .feature-card-icon {
  background: var(--pastel-blue);
}
.feature-card-blue .feature-card-icon svg {
  color: #3A7CA5;
}

.feature-card-mint {
  --card-color: var(--pastel-mint);
}
.feature-card-mint .feature-card-icon {
  background: var(--pastel-mint);
}
.feature-card-mint .feature-card-icon svg {
  color: #2D8A4E;
}

.feature-card-lilac {
  --card-color: var(--pastel-lilac);
}
.feature-card-lilac .feature-card-icon {
  background: var(--pastel-lilac);
}
.feature-card-lilac .feature-card-icon svg {
  color: #6B5B95;
}

.feature-card-yellow {
  --card-color: var(--pastel-yellow);
}
.feature-card-yellow .feature-card-icon {
  background: var(--pastel-yellow);
}
.feature-card-yellow .feature-card-icon svg {
  color: #B8860B;
}

.feature-card-purple {
  --card-color: var(--primary-light);
}
.feature-card-purple .feature-card-icon {
  background: var(--primary-light);
}
.feature-card-purple .feature-card-icon svg {
  color: white;
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.feature-card p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/*==================================
   文章卡片 - 蓬松设计
==================================*/
.posts-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
}

.post-card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: 0;
  box-shadow: var(--shadow-clay);
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  cursor: pointer;
  overflow: hidden;
  position: relative;
}

.post-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--pastel-pink), var(--pastel-lilac), var(--pastel-blue));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.post-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-clay-hover);
}

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

.post-card-inner {
  padding: var(--spacing-xl);
}

.post-card-accent {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  box-shadow: var(--shadow-clay);
}

.post-card-accent.pink { background: var(--pastel-pink); }
.post-card-accent.blue { background: var(--pastel-blue); }
.post-card-accent.mint { background: var(--pastel-mint); }
.post-card-accent.lilac { background: var(--pastel-lilac); }
.post-card-accent.yellow { background: var(--pastel-yellow); }

.post-card-accent svg {
  width: 24px;
  height: 24px;
}

/* 文章分类 - 标题上方 */
.post-category-top {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(79, 70, 229, 0.1);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: var(--spacing-md);
}

.post-category-top svg {
  color: var(--primary);
}

.post-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.post-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-secondary);
}

.post-meta-item svg {
  color: var(--primary);
}

.post-date {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-main);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
}

.post-category {
  font-size: 15px;
  font-weight: 700;
  color: var(--primary);
  background: rgba(79, 70, 229, 0.1);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
}

.post-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  line-height: 1.3;
  transition: color 0.2s ease;
}

.post-card:hover .post-title {
  color: var(--primary);
}

.post-excerpt {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--spacing-lg);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.post-read-more {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
  transition: all 0.2s ease;
}

.post-read-more svg {
  transition: transform 0.2s ease;
}

.post-card:hover .post-read-more {
  gap: var(--spacing-sm);
}

.post-card:hover .post-read-more svg {
  transform: translateX(4px);
}

.post-card-tags {
  display: flex;
  gap: var(--spacing-xs);
}

.post-card-tag {
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: var(--bg-main);
  color: var(--text-muted);
}

/*==================================
   进度追踪卡片 - 教育平台特色
==================================*/
.progress-section {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-clay);
}

.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
}

.progress-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
}

.progress-stats {
  font-size: 14px;
  color: var(--text-secondary);
}

.progress-bar-container {
  background: var(--bg-main);
  border-radius: var(--radius-pill);
  height: 12px;
  overflow: hidden;
  margin-bottom: var(--spacing-lg);
  box-shadow: inset 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  border-radius: var(--radius-pill);
  width: 65%;
  transition: width 1s ease;
  position: relative;
}

.progress-bar::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 4px;
  right: 4px;
  height: 4px;
  background: rgba(255, 255, 255, 0.4);
  border-radius: var(--radius-pill);
}

.progress-courses {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.course-item {
  background: var(--bg-main);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  text-align: center;
  box-shadow: var(--shadow-clay);
}

.course-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-sm);
}

.course-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.course-progress {
  font-size: 12px;
  color: var(--text-muted);
}

/*==================================
   评价卡片
==================================*/
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.testimonial-card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-clay);
  transition: all 0.3s ease;
}

.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-clay-hover);
}

.testimonial-stars {
  display: flex;
  gap: 4px;
  margin-bottom: var(--spacing-md);
}

.testimonial-stars svg {
  width: 20px;
  height: 20px;
  color: #FBBF24;
  fill: #FBBF24;
}

.testimonial-text {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--spacing-lg);
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--pastel-lilac);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--primary);
  box-shadow: var(--shadow-clay);
}

.testimonial-info h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.testimonial-info p {
  font-size: 13px;
  color: var(--text-muted);
}

/*==================================
   课程目录卡片
==================================*/
.courses-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
}

.course-card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-clay);
  transition: all 0.3s ease;
  cursor: pointer;
}

.course-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-clay-hover);
}

.course-card-image {
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
}

.course-card-image.pink { background: var(--pastel-pink); }
.course-card-image.blue { background: var(--pastel-blue); }
.course-card-image.mint { background: var(--pastel-mint); }
.course-card-image.lilac { background: var(--pastel-lilac); }

.course-card-content {
  padding: var(--spacing-lg);
}

.course-card-tag {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--primary);
  margin-bottom: var(--spacing-xs);
}

.course-card-title {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.course-card-desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

.course-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.course-card-price {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
}

.course-card-students {
  font-size: 12px;
  color: var(--text-muted);
}

/*==================================
   文章详情页
==================================*/
.post-layout {
  position: relative;
  padding-top: calc(80px + var(--spacing-section));
  padding-bottom: var(--spacing-section);
}

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

/* 目录样式 - 固定在左侧 */
.post-toc {
  position: fixed;
  left: calc(50% - 700px);
  top: 120px;
  width: 200px;
  max-height: 400px;
  overflow-y: auto;
  padding: var(--spacing-lg);
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-clay);
}

.toc-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px dashed var(--bg-main);
}

.toc-header svg {
  color: var(--primary);
}

.toc-content {
  list-style: none;
  padding: 0;
  margin: 0;
}

.toc-content a {
  display: block;
  padding: 6px 0;
  font-size: 13px;
  color: var(--text-muted);
  text-decoration: none;
  transition: all 0.2s ease;
  line-height: 1.5;
  border-left: 2px solid transparent;
  padding-left: var(--spacing-sm);
}

.toc-content a:hover {
  color: var(--primary);
  border-left-color: var(--primary);
}

.toc-content a.active {
  color: var(--primary);
  font-weight: 600;
  border-left-color: var(--primary);
  background: rgba(79, 70, 229, 0.05);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* 目录缩进 */
.toc-content .toc-h1,
.toc-content .toc-h2 {
  padding-left: var(--spacing-sm);
  font-weight: 600;
  color: var(--text-secondary);
}

.toc-content .toc-h3 {
  padding-left: var(--spacing-lg);
}

.toc-content .toc-h4 {
  padding-left: var(--spacing-xl);
}

/* 目录折叠/展开效果 */
.toc-item {
  transition: all 0.3s ease;
  overflow: hidden;
}

.toc-expanded {
  animation: tocExpand 0.3s ease forwards;
}

@keyframes tocExpand {
  from {
    opacity: 0;
    max-height: 0;
  }
  to {
    opacity: 1;
    max-height: 50px;
  }
}

/* 目录滚动条 - 隐藏 */
.post-toc::-webkit-scrollbar {
  display: none;
}

.post-toc {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

.post-header {
  margin-bottom: var(--spacing-xxl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 3px solid var(--bg-main);
}

.post-header .post-title {
  font-size: clamp(28px, 4vw, 40px);
  margin-bottom: var(--spacing-md);
}

.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.tag {
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: var(--bg-main);
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-clay);
}

.tag:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-2px);
}

.post-content {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-secondary);
}

.post-content h1,
.post-content h2,
.post-content h3,
.post-content h4 {
  font-family: var(--font-display);
  color: var(--text-primary);
  margin: 1.2em 0 0.5em;
  font-weight: 600;
  display: block;
}

.post-content h1 {
  padding-bottom: 8px;
  border-bottom: 3px solid var(--primary);
}

.post-content h2 {
  padding-bottom: 6px;
  border-bottom: 2px solid var(--pastel-lilac);
}

.post-content h3 {
  padding-bottom: 4px;
  border-bottom: 2px solid var(--pastel-pink);
}

.post-content h4 {
  padding-bottom: 4px;
  border-bottom: 2px dashed var(--pastel-blue);
}

.post-content h1 { font-size: 32px; }
.post-content h2 { font-size: 26px; }
.post-content h3 { font-size: 20px; }

.post-content p {
  margin-bottom: 1.5em;
}

.post-content a {
  color: var(--primary);
  text-decoration: underline;
  text-decoration-color: var(--primary-light);
  text-underline-offset: 3px;
  transition: text-decoration-color 0.2s ease;
}

.post-content a:hover {
  text-decoration-color: var(--primary);
}

.post-content code {
  font-family: 'SF Mono', Monaco, monospace;
  background: var(--bg-main);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-size: 0.85em;
  box-shadow: var(--shadow-clay);
}

.post-content pre {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  overflow-x: auto;
  margin: 1em 0;
  box-shadow: var(--shadow-clay);
  font-size: 13px;
  line-height: 1.6;
}

.post-content pre code {
  background: transparent;
  padding: 0;
  box-shadow: none;
  font-size: 13px;
}

/* 代码块行号样式 */
.post-content pre .line-number {
  color: var(--text-muted);
  font-size: 12px;
  user-select: none;
  margin-right: var(--spacing-sm);
}

/* Hexo 代码高亮 table 结构样式 */
figure.highlight {
  margin: 1em 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-clay);
}

figure.highlight table {
  width: 100%;
  border-collapse: collapse;
  margin: 0;
  background: var(--bg-card);
}

figure.highlight td {
  padding: 0;
  border: none;
  vertical-align: top;
}

figure.highlight .gutter {
  width: 1px;
  background: var(--bg-main);
}

figure.highlight .gutter pre {
  padding: var(--spacing-md) var(--spacing-sm);
  margin: 0;
  background: var(--bg-main);
  font-family: 'SF Mono', Monaco, monospace;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-muted);
  user-select: none;
  border-radius: var(--radius-md) 0 0 var(--radius-md);
}

figure.highlight .code {
  background: var(--bg-card);
}

figure.highlight .code pre {
  padding: var(--spacing-md);
  margin: 0;
  background: transparent;
}

figure.highlight .code code {
  font-family: 'SF Mono', Monaco, monospace;
  font-size: 13px;
  line-height: 1.6;
}

/* 列表样式 */
.post-content ul,
.post-content ol {
  padding-left: 0;
  margin: 1em 0;
}

.post-content ul {
  list-style: none;
}

.post-content ul li {
  position: relative;
  padding-left: 1.5em;
  margin-bottom: 0.5em;
}

.post-content ul > li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
}

/* 嵌套无序列表样式 */
.post-content ul ul {
  margin-top: 0.5em;
  margin-bottom: 0.5em;
  padding-left: 0;
}

.post-content ul ul > li {
  padding-left: 1.2em;
  margin-bottom: 0.3em;
}

.post-content ul ul > li::before {
  width: 6px;
  height: 6px;
  background: var(--pastel-pink);
}

.post-content ul ul ul > li::before {
  width: 5px;
  height: 5px;
  background: var(--pastel-blue);
}

.post-content ul ul ul ul > li::before {
  width: 4px;
  height: 4px;
  background: var(--pastel-mint);
}

.post-content ol {
  list-style: none;
  counter-reset: list-counter;
}

.post-content ol > li {
  position: relative;
  padding-left: 2em;
  margin-bottom: 0.5em;
  counter-increment: list-counter;
}

.post-content ol > li::before {
  content: counter(list-counter);
  position: absolute;
  left: 0;
  top: 0;
  width: 24px;
  height: 24px;
  background: var(--bg-main);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  box-shadow: var(--shadow-clay);
}

/* 嵌套列表样式 */
.post-content ol ol {
  margin-top: 0.5em;
  margin-bottom: 0.5em;
  padding-left: 0;
}

.post-content ol ol > li {
  padding-left: 1.5em;
  margin-bottom: 0.3em;
}

.post-content ol ol > li::before {
  width: 20px;
  height: 20px;
  font-size: 11px;
  background: var(--pastel-lilac);
  color: var(--primary);
}

/* 普通引用块 > */
.post-content blockquote {
  border-left: 4px solid #8b5cf6;
  background: rgba(139, 92, 246, 0.06);
  padding: var(--spacing-sm) var(--spacing-lg);
  margin: 1em 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  box-shadow: var(--shadow-clay);
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.3s ease;
}

.post-content blockquote::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 150%;
  height: 150%;
  background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(139, 92, 246, 0.3) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 0;
  pointer-events: none;
}

.post-content blockquote:hover::before {
  opacity: 1;
}

.post-content blockquote:hover {
  box-shadow: var(--shadow-clay-hover);
}

.post-content blockquote > * {
  position: relative;
  z-index: 1;
}

.post-content blockquote p {
  color: var(--text-secondary);
  margin: 0.5em 0;
  line-height: 1.7;
}

/* 标签插件引用块 */
.post-blockquote {
  border-left: 4px solid var(--block-color, var(--primary));
  background: var(--block-bg, rgba(79, 70, 229, 0.06));
  padding: var(--spacing-md) var(--spacing-lg);
  margin: 1.5em 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  box-shadow: var(--shadow-clay);
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.3s ease, background 0.3s ease;
}

.post-blockquote::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 150%;
  height: 150%;
  background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), var(--block-color, var(--primary)) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 0;
  pointer-events: none;
}

.post-blockquote:hover::before {
  opacity: 0.15;
}

.post-blockquote:hover {
  box-shadow: var(--shadow-clay-hover);
}

.post-blockquote > * {
  position: relative;
  z-index: 1;
}

.blockquote-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--block-color, var(--primary));
}

.blockquote-icon {
  display: flex;
  align-items: center;
  width: 20px;
  height: 20px;
}

.blockquote-icon svg {
  width: 100%;
  height: 100%;
}

.blockquote-title {
  font-size: 15px;
}

.blockquote-content {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.blockquote-content p {
  margin: 0.5em 0;
}

/* 各类型颜色 */
.post-blockquote.blockquote-note {
  border-left-color: #22c55e !important;
  background: rgba(34, 197, 94, 0.06) !important;
}

.post-blockquote.blockquote-warning {
  border-left-color: #d97706 !important;
  background: rgba(217, 119, 6, 0.06) !important;
}

.post-blockquote.blockquote-declare {
  border-left-color: #8b5cf6 !important;
  background: rgba(139, 92, 246, 0.06) !important;
}

.post-blockquote.blockquote-danger {
  border-left-color: #dc2626 !important;
  background: rgba(220, 38, 38, 0.06) !important;
}

.post-blockquote.blockquote-note .blockquote-header,
.post-blockquote.blockquote-note .blockquote-icon svg {
  color: #22c55e;
}

.post-blockquote.blockquote-warning .blockquote-header,
.post-blockquote.blockquote-warning .blockquote-icon svg {
  color: #d97706;
}

.post-blockquote.blockquote-declare .blockquote-header,
.post-blockquote.blockquote-declare .blockquote-icon svg {
  color: #8b5cf6;
}

.post-blockquote.blockquote-danger .blockquote-header,
.post-blockquote.blockquote-danger .blockquote-icon svg {
  color: #dc2626;
}

.post-blockquote.blockquote-note::before {
  background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(34, 197, 94, 0.35) 0%, transparent 60%);
}

.post-blockquote.blockquote-warning::before {
  background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(217, 119, 6, 0.35) 0%, transparent 60%);
}

.post-blockquote.blockquote-declare::before {
  background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(139, 92, 246, 0.35) 0%, transparent 60%);
}

.post-blockquote.blockquote-danger::before {
  background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(220, 38, 38, 0.35) 0%, transparent 60%);
}

.post-content blockquote p {
  color: var(--text-secondary);
  margin: 0.5em 0;
  line-height: 1.7;
}

/* 表格样式 - 可爱风格 */
.post-content > table,
.post-content > div > table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 1.5em 0;
  font-size: 14px;
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-clay);
}

.post-content thead {
  background: linear-gradient(135deg, var(--pastel-pink), var(--pastel-lilac));
}

.post-content th {
  padding: 14px 18px;
  text-align: left;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 13px;
  color: var(--text-primary);
  border-bottom: 3px solid var(--bg-main);
}

.post-content td {
  padding: 12px 18px;
  border-bottom: 2px dashed var(--bg-main);
  color: var(--text-secondary);
  transition: all 0.2s ease;
}

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

.post-content tbody tr:hover {
  background: var(--pastel-lilac);
  transform: scale(1.01);
}

.post-content tbody tr:nth-child(even) {
  background: rgba(230, 230, 250, 0.3);
}

.post-content tbody tr:nth-child(even):hover {
  background: var(--pastel-lilac);
}

.post-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-clay);
}

/* 版权信息 */
.post-copyright {
  display: flex;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg);
  margin-top: var(--spacing-xxl);
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.05), rgba(129, 140, 248, 0.08));
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-clay);
  border: 2px solid var(--pastel-lilac);
  position: relative;
  overflow: hidden;
}

.post-copyright::before {
  content: 'CC BY-NC-SA 4.0';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-15deg);
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 700;
  color: rgba(79, 70, 229, 0.06);
  white-space: nowrap;
  pointer-events: none;
  letter-spacing: 4px;
}

.copyright-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--pastel-lilac), var(--primary-light));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-clay);
}

.copyright-icon svg {
  width: 24px;
  height: 24px;
  color: white;
}

.copyright-content {
  flex: 1;
  min-width: 0;
  word-break: break-word;
}

.copyright-title {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.copyright-text {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.copyright-text a {
  color: var(--primary);
  text-decoration: underline;
}

.copyright-note {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: var(--spacing-sm);
}

/* 代码复制按钮样式 */
.code-copy-btn:hover {
  background: var(--bg-main) !important;
  color: var(--primary) !important;
}

/* Mermaid 图表样式 */
.mermaid {
  text-align: center;
  padding: var(--spacing-lg);
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  margin: 1.5em 0;
  box-shadow: var(--shadow-clay);
  overflow-x: auto;
}

/* 文章导航 */
.post-nav {
  display: flex;
  justify-content: space-between;
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 2px solid var(--bg-main);
  gap: var(--spacing-lg);
}

.post-nav a {
  text-decoration: none;
  flex: 1;
  background: var(--bg-card);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-clay);
  transition: all 0.3s ease;
}

.post-nav a:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-clay-hover);
}

.post-nav-next {
  text-align: right;
}

.post-nav-label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--primary);
  margin-bottom: var(--spacing-xs);
}

.post-nav-title {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

/* 评论区 */
.post-comments {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 2px solid var(--bg-main);
}

#twikoo {
  margin-top: var(--spacing-xl);
}

/*==================================
   归档页 - 时间线风格
==================================*/
.archive-section {
  padding-top: calc(80px + var(--spacing-section));
}

.archive-year {
  margin-bottom: var(--spacing-xxl);
  position: relative;
}

.archive-year-title {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: var(--spacing-xl);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  letter-spacing: -1px;
}

.archive-year-title::before {
  content: '';
  width: 16px;
  height: 16px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 50%;
  box-shadow: var(--shadow-clay);
}

.archive-list {
  list-style: none;
  position: relative;
  padding-left: var(--spacing-xl);
}

.archive-list::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--primary-light), var(--pastel-lilac));
  border-radius: var(--radius-pill);
}

.archive-item {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg) var(--spacing-xl);
  margin-bottom: var(--spacing-md);
  display: flex;
  gap: var(--spacing-lg);
  align-items: center;
  box-shadow: var(--shadow-clay);
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
}

.archive-item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--spacing-xl) - 2px);
  width: 14px;
  height: 14px;
  background: var(--bg-card);
  border: 3px solid var(--primary);
  border-radius: 50%;
  box-shadow: var(--shadow-clay);
  transition: all 0.3s ease;
}

.archive-item:hover {
  transform: translateX(8px);
  box-shadow: var(--shadow-clay-hover);
}

.archive-item:hover::before {
  background: var(--primary);
  transform: scale(1.2);
}

.archive-date {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  color: white;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-pill);
  min-width: 70px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(79, 70, 229, 0.3);
}

.archive-content {
  flex: 1;
}

.archive-link {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
  transition: color 0.2s ease;
  display: block;
  margin-bottom: var(--spacing-xs);
}

.archive-link:hover {
  color: var(--primary);
}

.archive-excerpt {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.5;
}

.archive-tags {
  display: flex;
  gap: var(--spacing-xs);
}

.archive-tag {
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: var(--radius-pill);
  background: var(--bg-main);
  color: var(--text-muted);
}

/*==================================
   标签页 - 蓬松云朵风格
==================================*/
.tags-section {
  padding-top: calc(80px + var(--spacing-section));
}

/* 云朵漂浮文章卡片 */
.cloud-posts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  justify-content: center;
  padding: var(--spacing-xl) 0;
}

.cloud-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md) var(--spacing-lg);
  box-shadow: var(--shadow-clay);
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-md);
  max-width: 350px;
  cursor: pointer;
}

.cloud-card:hover {
  transform: translateY(-8px) scale(1.03);
  box-shadow: var(--shadow-clay-hover);
}

.cloud-card-date {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: var(--bg-main);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
}

.cloud-card-title {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: color 0.2s ease;
}

.cloud-card:hover .cloud-card-title {
  color: var(--primary);
}

.cloud-card-arrow {
  font-size: 16px;
  color: var(--primary);
  opacity: 0;
  transform: translateX(-8px);
  transition: all 0.3s ease;
}

.cloud-card:hover .cloud-card-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* 5种不同的漂浮动画 */
.cloud-float-1 {
  animation: cloudFloat1 4s ease-in-out infinite;
}
.cloud-float-2 {
  animation: cloudFloat2 5s ease-in-out infinite;
}
.cloud-float-3 {
  animation: cloudFloat3 4.5s ease-in-out infinite;
}
.cloud-float-4 {
  animation: cloudFloat4 5.5s ease-in-out infinite;
}
.cloud-float-5 {
  animation: cloudFloat5 4.8s ease-in-out infinite;
}

@keyframes cloudFloat1 {
  0%, 100% { transform: translateY(0) translateX(0); }
  50% { transform: translateY(-12px) translateX(5px); }
}
@keyframes cloudFloat2 {
  0%, 100% { transform: translateY(0) translateX(0); }
  50% { transform: translateY(-8px) translateX(-8px); }
}
@keyframes cloudFloat3 {
  0%, 100% { transform: translateY(0) translateX(0); }
  50% { transform: translateY(-15px) translateX(3px); }
}
@keyframes cloudFloat4 {
  0%, 100% { transform: translateY(0) translateX(0); }
  50% { transform: translateY(-10px) translateX(-5px); }
}
@keyframes cloudFloat5 {
  0%, 100% { transform: translateY(0) translateX(0); }
  50% { transform: translateY(-14px) translateX(8px); }
}

/* 悬停时暂停动画 */
.cloud-card:hover {
  animation-play-state: paused;
}

.tags-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  justify-content: center;
  padding: var(--spacing-xl);
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-clay);
}

.tag-item {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: 600;
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-pill);
  background: linear-gradient(135deg, var(--bg-main), var(--bg-elevated));
  color: var(--text-primary);
  text-decoration: none;
  box-shadow: 
    inset -2px -2px 6px rgba(255, 255, 255, 0.8),
    inset 2px 2px 6px rgba(0, 0, 0, 0.05),
    3px 3px 8px rgba(79, 70, 229, 0.1);
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  overflow: hidden;
}

.tag-item::before {
  content: '#';
  font-weight: 700;
  color: var(--primary);
  opacity: 0.5;
}

.tag-item.has-icon::before {
  display: none;
}

.tag-icon {
  display: inline-flex;
  align-items: center;
  width: 16px;
  height: 16px;
  color: var(--primary);
  opacity: 0.7;
}

.tag-icon svg {
  width: 100%;
  height: 100%;
}

.tag-item:hover {
  transform: translateY(-6px) scale(1.08);
  box-shadow: 
    inset -2px -2px 8px rgba(255, 255, 255, 0.9),
    inset 2px 2px 8px rgba(0, 0, 0, 0.08),
    6px 6px 16px rgba(79, 70, 229, 0.25);
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: white;
}

.tag-item:hover::before {
  color: white;
  opacity: 1;
}

/* 标签大小变体 */
.tag-size-sm {
  font-size: 13px;
  padding: var(--spacing-sm) var(--spacing-lg);
}

.tag-size-md {
  font-size: 15px;
  padding: var(--spacing-md) var(--spacing-xl);
}

.tag-size-lg {
  font-size: 18px;
  padding: var(--spacing-md) var(--spacing-xxl);
  font-weight: 700;
}

/* 标签颜色变体 */
.tag-color-cold {
  background: linear-gradient(135deg, var(--bg-main), var(--bg-elevated));
}

.tag-color-cool {
  background: linear-gradient(135deg, rgba(164, 212, 197, 0.3), rgba(164, 212, 197, 0.1));
}

.tag-color-warm {
  background: linear-gradient(135deg, rgba(184, 164, 237, 0.3), rgba(184, 164, 237, 0.1));
}

.tag-color-hot {
  background: linear-gradient(135deg, rgba(253, 188, 180, 0.4), rgba(253, 188, 180, 0.15));
  box-shadow: 
    inset -2px -2px 6px rgba(255, 255, 255, 0.8),
    inset 2px 2px 6px rgba(0, 0, 0, 0.05),
    3px 3px 12px rgba(253, 188, 180, 0.3);
}

.tag-count {
  font-size: 11px;
  font-weight: 700;
  background: rgba(79, 70, 229, 0.15);
  color: var(--primary);
  padding: 3px 8px;
  border-radius: var(--radius-pill);
  transition: all 0.3s ease;
}

.tag-item:hover .tag-count {
  background: rgba(255, 255, 255, 0.25);
  color: white;
}

/* 热门标签特殊样式 */
.tag-color-hot .tag-count {
  background: rgba(253, 188, 180, 0.4);
  color: #c25a4a;
}

.tag-color-hot:hover .tag-count {
  background: rgba(255, 255, 255, 0.25);
  color: white;
}

/* 标签云装饰 */
.tags-cloud-decoration {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-xxl);
}

.tags-cloud-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  animation: bounce 2s ease-in-out infinite;
}

.tags-cloud-dot:nth-child(1) { background: var(--pastel-pink); animation-delay: 0s; }
.tags-cloud-dot:nth-child(2) { background: var(--pastel-blue); animation-delay: 0.2s; }
.tags-cloud-dot:nth-child(3) { background: var(--pastel-mint); animation-delay: 0.4s; }
.tags-cloud-dot:nth-child(4) { background: var(--pastel-lilac); animation-delay: 0.6s; }
.tags-cloud-dot:nth-child(5) { background: var(--pastel-yellow); animation-delay: 0.8s; }

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/*==================================
   分类页 - 彩色卡片风格
==================================*/
.categories-section {
  padding-top: calc(80px + var(--spacing-section));
  padding-bottom: var(--spacing-xxl);
  margin-bottom: var(--spacing-xxl);
}

.categories-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-xl);
}

.category-item {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  text-decoration: none;
  box-shadow: var(--shadow-clay);
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  position: relative;
  overflow: hidden;
}

.category-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--category-color, var(--primary));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.category-item:hover::before {
  transform: scaleX(1);
}

.category-item:nth-child(1) { --category-color: var(--pastel-pink); }
.category-item:nth-child(2) { --category-color: var(--pastel-blue); }
.category-item:nth-child(3) { --category-color: var(--pastel-mint); }
.category-item:nth-child(4) { --category-color: var(--pastel-lilac); }
.category-item:nth-child(5) { --category-color: var(--pastel-yellow); }

.category-item:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-clay-hover);
}

.category-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.category-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-clay);
  transition: transform 0.3s ease;
}

.category-item:hover .category-icon {
  transform: rotate(-5deg) scale(1.1);
}

.category-icon svg {
  width: 28px;
  height: 28px;
}

.category-info {
  flex: 1;
}

.category-name {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  color: var(--text-primary);
  transition: color 0.2s ease;
  margin-bottom: 4px;
}

.category-item:hover .category-name {
  color: var(--primary);
}

.category-desc {
  font-size: 14px;
  color: var(--text-muted);
}

.category-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-md);
  border-top: 2px dashed var(--bg-main);
}

.category-count {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
}

.category-count-label {
  font-size: 13px;
  color: var(--text-muted);
}

.category-arrow {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-main);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-clay);
}

.category-item:hover .category-arrow {
  background: var(--primary);
  color: white;
  transform: translateX(4px);
}

.category-arrow svg {
  width: 20px;
  height: 20px;
}

/*==================================
   友链页
==================================*/
.links-section {
  padding-top: calc(80px + var(--spacing-section));
}

.links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.link-card {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg);
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  text-decoration: none;
  box-shadow: var(--shadow-clay);
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  border: 2px solid transparent;
}

.link-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-clay-hover);
}

.link-color-pink:hover { border-color: var(--pastel-pink); }
.link-color-blue:hover { border-color: var(--pastel-blue); }
.link-color-mint:hover { border-color: var(--pastel-mint); }
.link-color-lilac:hover { border-color: var(--pastel-lilac); }
.link-color-yellow:hover { border-color: var(--pastel-yellow); }

.link-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  box-shadow: var(--shadow-clay);
}

.link-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.link-avatar-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: white;
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
}

.link-info {
  flex: 1;
  min-width: 0;
}

.link-name {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
  transition: color 0.2s ease;
}

.link-card:hover .link-name {
  color: var(--primary);
}

.link-desc {
  font-size: 13px;
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.links-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--spacing-xxl);
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-clay);
}

.links-empty p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

.links-contact {
  font-size: 14px;
  color: var(--text-muted);
}

.links-contact a {
  color: var(--primary);
  text-decoration: underline;
}

/* 友链分组 */
.link-group {
  margin-bottom: var(--spacing-xxl);
}

.link-group:last-child {
  margin-bottom: 0;
}

.link-group-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.link-group-icon {
  font-size: 24px;
}

.link-group-count {
  font-size: 13px;
  font-weight: 400;
  color: var(--text-muted);
  background: var(--bg-main);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
}

/* 交换友链模块 */
.link-apply {
  margin-top: var(--spacing-xxl);
  margin-bottom: var(--spacing-xxl);
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xxl);
  box-shadow: var(--shadow-clay);
  border: 2px solid var(--pastel-lilac);
}

.link-apply-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.link-apply-title {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
}

.link-apply-content {
  margin-bottom: var(--spacing-xl);
}

.link-apply-section {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.link-apply-section p {
  margin-bottom: var(--spacing-md);
}

.link-apply-section ul {
  list-style: none;
  padding: 0;
  margin-bottom: var(--spacing-lg);
}

.link-apply-section ul li {
  position: relative;
  padding-left: 1.5em;
  margin-bottom: 0.5em;
}

.link-apply-section ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 600;
}

.link-apply-note {
  font-size: 14px;
  color: #6b5b95;
  background: var(--bg-main);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  margin: var(--spacing-md) 0;
}

.link-apply-note a {
  color: #e8b94a;
  text-decoration: underline;
  font-weight: 600;
}

.link-apply-note a:hover {
  color: var(--primary);
}

.link-apply-divider {
  border: none;
  border-top: 2px dashed var(--bg-main);
  margin: var(--spacing-xl) 0;
}

.link-format {
  background: var(--bg-main);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  margin: var(--spacing-md) 0;
  font-family: var(--font-mono);
  font-size: 14px;
}

.link-format-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.link-format-item:last-child {
  margin-bottom: 0;
}

.link-format-text {
  flex: 1;
  min-width: 0;
}

.link-format-text strong {
  color: var(--text-primary);
}

.link-format-text a {
  color: var(--text-secondary);
  text-decoration: none;
  word-break: break-all;
}

.link-copy-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 4px 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--text-muted);
  transition: all 0.2s ease;
  white-space: nowrap;
  flex-shrink: 0;
}

.link-copy-btn:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.link-copy-btn svg {
  width: 12px;
  height: 12px;
}

.link-apply-footer {
  text-align: center;
  padding-top: var(--spacing-xl);
  border-top: 2px dashed var(--bg-main);
}

.link-apply-tips {
  font-size: 16px;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.link-apply-footer p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: var(--spacing-xs);
}

/* 友链评论区 */
.link-comments {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-xl);
  border-top: 2px dashed var(--bg-main);
}

/*==================================
   关于页
==================================*/
.about-section {
  padding-top: calc(80px + var(--spacing-section));
}

.about-profile {
  text-align: center;
  margin-bottom: var(--spacing-xxl);
}

.about-avatar {
  width: 120px;
  height: 120px;
  margin: 0 auto var(--spacing-lg);
}

.about-avatar img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--bg-card);
  box-shadow: var(--shadow-clay);
  transition: transform 0.3s ease;
}

.about-avatar:hover img {
  transform: scale(1.05);
}

.about-name {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.about-motto {
  font-size: 16px;
  color: var(--text-muted);
  font-style: italic;
}

.about-content {
  max-width: 700px;
  margin: 0 auto;
}

.about-card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xxl);
  box-shadow: var(--shadow-clay);
  margin-bottom: var(--spacing-xxl);
}

.about-text p {
  font-size: 17px;
  color: var(--text-secondary);
  margin-bottom: 1.5em;
  line-height: 1.8;
}

/*==================================
   404 页面
==================================*/
.error-section {
  min-height: calc(100vh - 120px);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 80px;
}

.error-card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xxl);
  box-shadow: var(--shadow-clay);
  max-width: 400px;
}

.error-code {
  font-family: var(--font-display);
  font-size: clamp(80px, 15vw, 120px);
  font-weight: 600;
  line-height: 1;
  color: var(--primary);
  margin-bottom: var(--spacing-md);
}

.error-text {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
}

.error-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  color: white;
  background: var(--primary);
  padding: 14px 28px;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all 0.2s ease;
}

.error-link:hover {
  background: #4338CA;
  transform: translateY(-2px);
}

/*==================================
   年度计划
==================================*/
.plans-section {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xxl);
  box-shadow: var(--shadow-clay);
}

.plans-progress {
  margin-bottom: var(--spacing-xl);
}

.plans-progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
}

.plans-progress-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

.plans-progress-percent {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  color: var(--primary);
}

.plans-progress-bar-container {
  background: var(--bg-main);
  border-radius: var(--radius-pill);
  height: 12px;
  overflow: hidden;
  margin-bottom: var(--spacing-sm);
  box-shadow: inset 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.plans-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  border-radius: var(--radius-pill);
  transition: width 1s ease;
  position: relative;
}

.plans-progress-bar::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 4px;
  right: 4px;
  height: 4px;
  background: rgba(255, 255, 255, 0.4);
  border-radius: var(--radius-pill);
}

.plans-progress-stats {
  font-size: 14px;
  color: var(--text-muted);
  text-align: right;
}

.plans-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.plan-item {
  --progress: 0%;
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: linear-gradient(90deg, rgba(79, 70, 229, 0.12) var(--progress), var(--bg-main) var(--progress));
  border-radius: var(--radius-md);
  transition: all 0.3s ease;
}

.plan-item:hover {
  filter: brightness(0.97);
}

.plan-item.plan-done {
  background: linear-gradient(90deg, rgba(34, 197, 94, 0.15) 100%, var(--bg-main) 100%);
}

.plan-item.plan-done .plan-text {
  text-decoration: line-through;
  color: var(--text-muted);
}

.plan-checkbox {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s ease;
}

.plan-item.plan-done .plan-checkbox {
  background: var(--primary);
  border-color: var(--primary);
}

.plan-checkbox svg {
  width: 16px;
  height: 16px;
  color: white;
}

.plan-progress-tag {
  font-size: 12px;
  font-weight: 700;
  color: var(--primary);
  background: rgba(79, 70, 229, 0.1);
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  margin-left: auto;
  white-space: nowrap;
}

.plan-text {
  font-size: 15px;
  color: var(--text-primary);
}

/*==================================
   站点数据 - 双栏统计
==================================*/
.site-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
}

.site-stat-card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xxl);
  box-shadow: var(--shadow-clay);
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  overflow: hidden;
}

.site-stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.stat-uptime::before {
  background: linear-gradient(90deg, var(--pastel-mint), var(--pastel-blue));
}

.stat-countdown::before {
  background: linear-gradient(90deg, var(--pastel-pink), var(--pastel-lilac));
}

.site-stat-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-clay-hover);
}

.site-stat-card:hover::before {
  opacity: 1;
}

.stat-icon {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: var(--shadow-clay);
}

.stat-uptime .stat-icon {
  background: linear-gradient(135deg, var(--pastel-mint), var(--pastel-blue));
}

.stat-countdown .stat-icon {
  background: linear-gradient(135deg, var(--pastel-pink), var(--pastel-lilac));
}

.stat-icon svg {
  width: 40px;
  height: 40px;
  color: var(--text-primary);
}

.stat-info {
  flex: 1;
}

.stat-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: var(--spacing-xs);
}

.stat-value {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.2;
}

.stat-number {
  color: var(--primary);
}

.stat-progress {
  background: var(--bg-main);
  border-radius: var(--radius-pill);
  height: 8px;
  overflow: hidden;
  margin-top: var(--spacing-md);
  box-shadow: inset 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.stat-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  border-radius: var(--radius-pill);
  transition: width 1s ease;
  position: relative;
}

.stat-progress-bar::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 4px;
  right: 4px;
  height: 3px;
  background: rgba(255, 255, 255, 0.4);
  border-radius: var(--radius-pill);
}

/* 响应式适配 */
@media (max-width: 768px) {
  .site-stats {
    grid-template-columns: 1fr;
  }

  .site-stat-card {
    padding: var(--spacing-xl);
  }

  .stat-icon {
    width: 64px;
    height: 64px;
  }

  .stat-icon svg {
    width: 32px;
    height: 32px;
  }
}

/*==================================
   CTA 区域
==================================*/
.cta-band {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: var(--radius-xl);
  padding: var(--spacing-xxl);
  text-align: center;
  margin: var(--spacing-section) 0;
  box-shadow: var(--shadow-clay);
  position: relative;
  overflow: hidden;
}

.cta-band::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 300px;
  height: 300px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}

.cta-band::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 200px;
  height: 200px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}

.cta-band h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 600;
  color: white;
  margin-bottom: var(--spacing-md);
  position: relative;
  z-index: 1;
}

.cta-band p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-xl);
  position: relative;
  z-index: 1;
}

.cta-band .btn {
  position: relative;
  z-index: 1;
}

/*==================================
   分页
==================================*/
.pagination {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xxl);
  margin-bottom: var(--spacing-xxl);
}

.pagination-btn {
  font-size: 14px;
  font-weight: 700;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  color: var(--text-primary);
  text-decoration: none;
  box-shadow: var(--shadow-clay);
  transition: all 0.2s ease;
}

.pagination-btn:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-2px);
}

/*==================================
   页脚 - 简洁样式
==================================*/
.site-footer {
  background: var(--bg-card);
  padding: var(--spacing-xl) 0;
  border-top: 1px solid var(--border);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  border-bottom: 1px dashed var(--bg-main);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--primary);
}

.footer-credit {
  font-family: var(--font-display);
  font-size: 15px;
  color: var(--text-muted);
}

.footer-credit a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-credit a:hover {
  color: var(--primary-light);
  text-decoration: underline;
}

.footer-social {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
}

.footer-copyright {
  font-family: var(--font-display);
  font-size: 15px;
  color: var(--text-muted);
}

.footer-beian {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-sm);
}

.beian-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.beian-item:hover {
  color: var(--primary);
}

.beian-icon {
  height: 18px;
  width: auto;
}

.footer-social-icons {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.footer-travelling {
  display: flex;
  align-items: center;
  transition: transform 0.3s ease;
}

.footer-travelling:hover {
  transform: scale(1.05);
}

.footer-travelling img {
  height: 28px;
  width: auto;
}

.footer-social-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--bg-main);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-clay);
}

.footer-social-icon svg {
  width: 16px;
  height: 16px;
}

.footer-social-icon:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-clay-hover);
  background: var(--primary);
  color: white;
}

.footer-social-icon.github:hover { background: #24292e; }
.footer-social-icon.bilibili:hover { background: #fb7299; }
.footer-social-icon.email:hover { background: var(--primary); }
.footer-social-icon.blog:hover { background: var(--cta); }
.footer-social-icon.tiktok:hover { background: #00f2ea; }
.footer-social-icon.kuaishou:hover { background: #ff6600; }
.footer-social-icon.xiaohongshu:hover { background: #ff2442; }
.footer-social-icon.gitee:hover { background: #c71d23; }
.footer-social-icon.qq:hover { background: #12b7f5; }
.footer-social-icon.wechat:hover { background: #07c160; }
.footer-social-icon.custom:hover { background: var(--custom-color, var(--primary)); }

.footer-bottom-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-main);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-clay);
}

.footer-bottom-icon svg {
  width: 16px;
  height: 16px;
}

.footer-bottom-icon:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-clay-hover);
  color: white;
}

.footer-bottom-icon.github:hover { background: #24292e; }
.footer-bottom-icon.email:hover { background: var(--primary); }

/*==================================
   响应式
==================================*/
@media (max-width: 1024px) {
  .features-grid,
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .courses-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 1200px) {
  .post-toc {
    display: none;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
  
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-content {
    max-width: 100%;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .hero-visual {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-xl);
  }

  .hero-clay-card {
    max-width: 320px;
    padding: var(--spacing-lg);
  }
  
  .features-grid,
  .posts-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  
  .courses-grid,
  .progress-courses {
    grid-template-columns: 1fr;
  }
  
  /* 移动端隐藏目录 */
  .post-toc {
    display: none;
  }

  .footer-top {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }

  .footer-brand {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .footer-beian {
    justify-content: center;
  }

  .post-nav {
    flex-direction: column;
  }
  
  .cta-band {
    padding: var(--spacing-xl);
  }

  /* 归档页移动端适配 */
  .archive-section {
    padding-top: calc(80px + var(--spacing-xl));
  }

  .archive-year-title {
    font-size: 32px;
    margin-bottom: var(--spacing-lg);
  }

  .archive-list {
    padding-left: var(--spacing-lg);
  }

  .archive-list::before {
    left: 4px;
  }

  .archive-item {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--spacing-md);
    gap: var(--spacing-sm);
    margin-left: var(--spacing-md);
  }

  .archive-item::before {
    left: calc(-1 * var(--spacing-md) - 2px);
    width: 12px;
    height: 12px;
  }

  .archive-date {
    font-size: 12px;
    padding: 4px 10px;
    min-width: auto;
  }

  .archive-link {
    font-size: 16px;
  }

  .archive-excerpt {
    font-size: 13px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .archive-tags {
    flex-wrap: wrap;
  }

  .archive-tag {
    font-size: 10px;
    padding: 2px 6px;
  }

  /* 友链页移动端适配 */
  .link-format-item {
    flex-wrap: wrap;
  }

  .link-format-text {
    flex: 1;
    min-width: 0;
    word-break: break-all;
  }

  .link-copy-btn {
    flex-shrink: 0;
  }

  .link-apply {
    padding: var(--spacing-lg) 5%;
  }

  /* 文章页移动端适配 */
  .post-layout {
    padding-left: 5%;
    padding-right: 5%;
  }

  /* 关于页移动端适配 */
  .about-card {
    padding: var(--spacing-md) 5%;
  }

  /* 年度计划移动端适配 */
  .plans-section {
    padding: var(--spacing-lg) 5%;
  }
}

/* 滚动条 */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-main);
  border-radius: var(--radius-pill);
}

::-webkit-scrollbar-thumb {
  background: var(--primary-light);
  border-radius: var(--radius-pill);
  border: 2px solid var(--bg-main);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

/* 选中文本 */
::selection {
  background: var(--primary-light);
  color: white;
}

/* 聚焦状态 */
*:focus {
  outline: 3px solid var(--primary-light);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* 减少动画 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}