/* 页面样式 - 首页、博客列表、详情页、关于页 */

/* ========== 首页 ========== */
.home-page {
  text-align: center;
  background: 
    radial-gradient(ellipse at 30% 20%, rgba(239, 68, 68, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 80%, rgba(239, 68, 68, 0.06) 0%, transparent 50%),
    linear-gradient(180deg, rgba(255,255,255,0.8) 0%, rgba(249, 250, 251, 0.5) 100%);
  position: relative;
  overflow: hidden;
}

.home-page::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: 
    radial-gradient(circle, rgba(239, 68, 68, 0.03) 1px, transparent 1px),
    radial-gradient(circle, rgba(239, 68, 68, 0.02) 1px, transparent 1px);
  background-size: 50px 50px, 30px 30px;
  background-position: 0 0, 25px 25px;
  animation: float 30s linear infinite;
  z-index: 0;
  opacity: 0.6;
}

.home-page::after {
  content: '';
  position: absolute;
  top: 10%;
  right: 15%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(239, 68, 68, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(60px);
  animation: pulse 8s ease-in-out infinite;
  z-index: 0;
}

@keyframes float {
  0% { transform: translate(0, 0) rotate(0deg); }
  100% { transform: translate(50px, 50px) rotate(360deg); }
}

@keyframes pulse {
  0%, 100% { 
    transform: scale(1) translate(0, 0);
    opacity: 0.3;
  }
  50% { 
    transform: scale(1.2) translate(-20px, 20px);
    opacity: 0.5;
  }
}

.home-page .page {
  position: relative;
  z-index: 1;
}

.home-card {
  width: 420px;
  height: 380px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  padding: var(--space-2xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  position: relative;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: all var(--transition-base);
  overflow: hidden;
  cursor: pointer;
}

.home-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.05) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-base);
  animation: shimmer 3s ease-in-out infinite;
  pointer-events: none;
}

.home-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(600px 200px at 20% -20%, rgba(239, 68, 68, 0.15), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
  border-radius: var(--radius-lg);
  pointer-events: none;
}

@keyframes shimmer {
  0%, 100% { opacity: 0; }
  50% { opacity: 0.3; }
}

.home-card:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: var(--shadow-xl);
  border-color: var(--accent-light);
}

.home-card:hover::before,
.home-card:hover::after {
  opacity: 1;
}

.home-card:hover .avatar {
  transform: scale(1.05);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-light);
}

.home-card:hover .avatar::after {
  opacity: 1;
}

.home-card:hover .name::after {
  transform: scaleX(1);
  transform-origin: left;
}

.greeting {
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.3;
  letter-spacing: -0.02em;
}

.intro {
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.3;
  letter-spacing: -0.02em;
}

.nice-to-meet {
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--text-secondary);
  line-height: 1.3;
}

.home-title {
  font-size: 2rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

/* ========== 博客列表页 ========== */
.blog-list {
  padding-top: 5rem;
  padding-bottom: 5rem;
  animation: slideUp 0.6s ease;
  background: 
    linear-gradient(180deg, transparent 0%, rgba(239, 68, 68, 0.02) 50%, transparent 100%);
  position: relative;
}

.blog-list::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-light), transparent);
  opacity: 0.3;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.blog-list-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
  position: relative;
}

.blog-list-header::after {
  content: '';
  position: absolute;
  bottom: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  border-radius: 2px;
  box-shadow: 0 2px 8px rgba(239, 68, 68, 0.3);
}

.blog-list-title {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-xs);
  cursor: pointer;
  transition: color var(--transition-base);
}

.blog-list-title:hover {
  color: var(--accent);
}

/* 博客条目 */
.blog-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-md);
  text-decoration: none;
  color: inherit;
  padding: var(--space-lg);
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.blog-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--transition-base);
}

.blog-item:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-light);
}

.blog-item:hover::before {
  transform: scaleY(1);
}

.blog-item-date {
  color: var(--text-tertiary);
  font-size: 0.875rem;
  width: 85px;
  flex-shrink: 0;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.blog-item-title {
  flex: 1;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: all var(--transition-base);
  letter-spacing: -0.01em;
}

.blog-item:hover .blog-item-title {
  color: var(--accent);
  transform: translateX(4px);
}

.blog-item-tags {
  display: flex;
  gap: var(--space-xs);
  flex-shrink: 0;
}

.blog-item:hover .tag {
  background: rgba(239, 68, 68, 0.2);
  transform: translateY(-1px);
}

@keyframes itemEnter {
  from { opacity: 0; transform: translateY(10px) translateX(-5px); }
  to { opacity: 1; transform: translateY(0) translateX(0); }
}

/* ========== 博客详情页 ========== */
.blog-detail-page {
  position: relative;
  max-width: 100%;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.blog-detail {
  padding-top: 3rem;
  padding-bottom: 4rem;
  animation: contentFade 0.6s ease;
  max-width: 896px;
  margin: 0 auto;
}

@keyframes contentFade {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.blog-detail-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  line-height: 1.2;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.blog-detail-date {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: var(--space-xl);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.blog-detail .card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

/* TOC 样式 */
.toc {
  display: block;
  position: fixed;
  left: 50%;
  margin-left: 450px;
  top: 3rem;
  width: 250px;
  max-height: calc(100vh - var(--space-2xl) * 2);
  overflow-y: auto;
  padding: var(--space-lg);
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
}

.toc-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--accent-light);
}

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

.toc-item {
  margin-bottom: var(--space-xs);
}

.toc-h1 > .toc-link {
  font-weight: 600;
  color: var(--text-primary);
  padding-left: 0;
}

.toc-h2 > .toc-link {
  font-weight: 500;
  color: var(--text-secondary);
  padding-left: var(--space-md);
}

.toc-h3 > .toc-link {
  font-weight: 400;
  color: var(--text-tertiary);
  padding-left: var(--space-xl);
}

.toc-link {
  display: block;
  text-decoration: none;
  transition: all var(--transition-fast);
  border-radius: var(--radius-sm);
  padding: 0.25rem 0.5rem;
  line-height: 1.4;
}

.toc-link:hover {
  color: var(--accent);
  background: rgba(239, 68, 68, 0.1);
  transform: translateX(4px);
}

.toc-sublist {
  list-style: none;
  padding: 0;
  margin: var(--space-xs) 0 0 0;
}

/* ========== About 页面 ========== */
.about-page {
  padding-top: 4rem;
  padding-bottom: 4rem;
  animation: contentFade 0.6s ease;
}

.about-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
  position: relative;
}

.about-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: var(--space-lg);
  border: 3px solid white;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-base);
}

.about-avatar:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-xl);
}

.about-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin: 0;
}

.about-content {
  color: var(--text-secondary);
  line-height: 1.8;
  font-size: 1.0625rem;
}

.about-content p {
  margin-top: 1.25em;
  margin-bottom: 1.25em;
}