/* ============================================
   陈然的小天地 - 个人博客样式
   ============================================ */

/* CSS 变量 */
:root {
  --color-primary: #6C5CE7;
  --color-primary-light: #A29BFE;
  --color-accent: #FD79A8;
  --color-accent-light: #FDCB6E;
  --color-bg: #F8F7FF;
  --color-bg-card: #FFFFFF;
  --color-text: #2D3436;
  --color-text-light: #636E72;
  --color-border: #E8E6F0;
  --color-tag-bg: #EEEAFE;
  --color-tag-text: #6C5CE7;
  --shadow-sm: 0 2px 8px rgba(108, 92, 231, 0.08);
  --shadow-md: 0 4px 20px rgba(108, 92, 231, 0.12);
  --shadow-lg: 0 8px 40px rgba(108, 92, 231, 0.16);
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 860px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.8;
  min-height: 100vh;
}

/* 背景装饰 */
body::before {
  content: "";
  position: fixed;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(162, 155, 254, 0.15), transparent 70%);
  border-radius: 50%;
  z-index: 0;
  pointer-events: none;
}

body::after {
  content: "";
  position: fixed;
  bottom: -150px;
  left: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(253, 121, 168, 0.1), transparent 70%);
  border-radius: 50%;
  z-index: 0;
  pointer-events: none;
}

/* 导航栏 */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  padding: 0 24px;
}

.navbar-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  user-select: none;
}

.logo-icon {
  font-size: 24px;
}

.nav-links {
  display: flex;
  gap: 8px;
  list-style: none;
}

.nav-link {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  color: var(--color-text-light);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  background: none;
}

.nav-link:hover {
  background: var(--color-tag-bg);
  color: var(--color-primary);
}

.nav-link.active {
  background: var(--color-primary);
  color: #fff;
}

/* 主内容区 */
main {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 40px 24px 80px;
}

/* 页面切换动画 */
.page {
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Hero 区域 */
.hero {
  text-align: center;
  padding: 40px 0 48px;
}

.hero-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  margin: 0 auto 20px;
  box-shadow: var(--shadow-md);
}

.hero-title {
  font-size: 32px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.hero-subtitle {
  font-size: 16px;
  color: var(--color-text-light);
  margin-bottom: 20px;
}

.hero-tags {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 16px;
  background: var(--color-bg-card);
  border-radius: 20px;
  font-size: 14px;
  color: var(--color-text-light);
  box-shadow: var(--shadow-sm);
}

/* 区块标题 */
.section-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.section-title::before {
  content: "";
  width: 4px;
  height: 22px;
  background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
  border-radius: 2px;
}

/* 标签过滤器 */
.tag-filter {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.tag-filter-btn {
  padding: 6px 16px;
  border-radius: 20px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
  color: var(--color-text-light);
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
}

.tag-filter-btn:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary);
}

.tag-filter-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

/* 文章卡片网格 */
.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 20px;
}

.article-card {
  background: var(--color-bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-light);
}

.article-cover {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 56px;
  position: relative;
  overflow: hidden;
}

.article-cover[data-cover="palette"] {
  background: linear-gradient(135deg, #FFEAA7, #FDA7DF);
}

.article-cover[data-cover="music"] {
  background: linear-gradient(135deg, #A29BFE, #74B9FF);
}

.article-cover[data-cover="pet"] {
  background: linear-gradient(135deg, #FFEAA7, #55EFC4);
}

.article-cover[data-cover="family"] {
  background: linear-gradient(135deg, #FDA7DF, #FD79A8);
}

.article-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 70% 30%, rgba(255, 255, 255, 0.3), transparent 60%);
}

.article-card-body {
  padding: 20px;
}

.article-card-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-text);
  line-height: 1.4;
}

.article-card-excerpt {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

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

.article-card-date {
  font-size: 13px;
  color: var(--color-text-light);
}

.article-card-tags {
  display: flex;
  gap: 6px;
}

.mini-tag {
  font-size: 12px;
  padding: 2px 10px;
  border-radius: 12px;
  background: var(--color-tag-bg);
  color: var(--color-tag-text);
}

/* 文章详情 */
.article-detail {
  max-width: var(--max-width);
}

.article-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-text-light);
  text-decoration: none;
  font-size: 14px;
  margin-bottom: 24px;
  cursor: pointer;
  transition: var(--transition);
}

.article-back:hover {
  color: var(--color-primary);
}

.article-detail-header {
  margin-bottom: 32px;
}

.article-detail-title {
  font-size: 30px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 12px;
}

.article-detail-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.article-detail-date {
  font-size: 14px;
  color: var(--color-text-light);
}

.article-detail-tags {
  display: flex;
  gap: 6px;
}

/* Markdown 渲染样式 */
.markdown-body {
  font-size: 16px;
  line-height: 1.85;
  color: var(--color-text);
}

.markdown-body h1 {
  font-size: 26px;
  font-weight: 800;
  margin: 0 0 20px;
  color: var(--color-text);
}

.markdown-body h2 {
  font-size: 22px;
  font-weight: 700;
  margin: 32px 0 16px;
  padding-left: 12px;
  border-left: 4px solid var(--color-primary);
  color: var(--color-text);
}

.markdown-body h3 {
  font-size: 18px;
  font-weight: 700;
  margin: 24px 0 12px;
  color: var(--color-primary);
}

.markdown-body p {
  margin-bottom: 16px;
}

.markdown-body ul,
.markdown-body ol {
  margin: 0 0 16px;
  padding-left: 24px;
}

.markdown-body li {
  margin-bottom: 6px;
}

.markdown-body blockquote {
  border-left: 4px solid var(--color-accent-light);
  background: rgba(253, 203, 110, 0.08);
  padding: 14px 20px;
  margin: 0 0 16px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--color-text-light);
}

.markdown-body blockquote p {
  margin-bottom: 0;
}

.markdown-body code {
  font-family: "SF Mono", "Fira Code", monospace;
  background: var(--color-tag-bg);
  color: var(--color-primary);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 14px;
}

.markdown-body pre {
  background: #2D3436;
  color: #DFE6E9;
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  overflow-x: auto;
  margin: 0 0 16px;
}

.markdown-body pre code {
  background: none;
  color: inherit;
  padding: 0;
}

.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 16px;
  font-size: 15px;
}

.markdown-body th {
  background: var(--color-tag-bg);
  color: var(--color-primary);
  font-weight: 700;
  padding: 10px 14px;
  text-align: left;
  border-bottom: 2px solid var(--color-border);
}

.markdown_body td,
.markdown-body td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--color-border);
}

.markdown-body tr:hover td {
  background: rgba(108, 92, 231, 0.03);
}

.markdown-body hr {
  border: none;
  border-top: 2px dashed var(--color-border);
  margin: 28px 0;
}

.markdown-body strong {
  font-weight: 700;
  color: var(--color-text);
}

.markdown-body em {
  color: var(--color-accent);
}

.markdown-body a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px dashed var(--color-primary-light);
}

.markdown-body img {
  max-width: 100%;
  border-radius: var(--radius-sm);
  margin: 16px 0;
}

/* 关于页面 */
.about-card {
  background: var(--color-bg-card);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.about-hero {
  text-align: center;
  margin-bottom: 32px;
  padding-bottom: 32px;
  border-bottom: 2px dashed var(--color-border);
}

.about-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
  margin: 0 auto 16px;
  box-shadow: var(--shadow-md);
}

.about-name {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 4px;
}

.about-bio {
  color: var(--color-text-light);
  font-size: 15px;
}

.family-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  margin: 24px 0;
}

.family-card {
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  padding: 20px;
  text-align: center;
  transition: var(--transition);
}

.family-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.family-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin: 0 auto 12px;
}

.family-name {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}

.family-role {
  font-size: 13px;
  color: var(--color-text-light);
}

/* 页脚 */
.footer {
  text-align: center;
  padding: 40px 24px;
  color: var(--color-text-light);
  font-size: 14px;
  position: relative;
  z-index: 1;
}

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

/* 空状态 */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--color-text-light);
}

.empty-state-icon {
  font-size: 48px;
  margin-bottom: 12px;
}

/* 响应式 */
@media (max-width: 640px) {
  .hero-title {
    font-size: 24px;
  }
  .article-grid {
    grid-template-columns: 1fr;
  }
  .article-detail-title {
    font-size: 24px;
  }
  .markdown-body {
    font-size: 15px;
  }
  .about-card {
    padding: 24px;
  }
  .family-grid {
    grid-template-columns: 1fr 1fr;
  }
  .nav-links {
    gap: 4px;
  }
  .nav-link {
    padding: 6px 10px;
    font-size: 14px;
  }
}

/* 滚动条美化 */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--color-primary-light);
  border-radius: 4px;
  opacity: 0.5;
}

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

/* 加载动画 */
.loading {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 200px;
}

.loading-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
  margin: 0 4px;
  animation: bounce 0.6s infinite alternate;
}

.loading-dot:nth-child(2) {
  animation-delay: 0.2s;
}

.loading-dot:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes bounce {
  to {
    transform: translateY(-12px);
    opacity: 0.5;
  }
}