/* 自定义字体 */
@font-face {
  font-family: 'DingTalk';
  src: url('../zt/dingdingjinbuti.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

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

:root {
  --pink-50: #fdf2f4;
  --pink-100: #fce7eb;
  --pink-200: #f9d0d9;
  --pink-300: #f4a9b8;
  --pink-400: #ec7a94;
  --pink-500: #df4d74;
  --pink-600: #cc2a5e;
  --text-primary: #3d2c33;
  --text-secondary: #7a636b;
  --text-light: #a89099;
  --bg-main: #fdf2f4;
  --bg-card: #ffffff;
  --border-color: #f4a9b8;
  --bg-code: #fce7eb;
  --shadow-card: rgba(236, 122, 148, 0.1);
}

/* 深色模式 */
.dark-mode {
  --pink-50: #111111;
  --pink-100: #1a1a1a;
  --pink-200: #2a2a2a;
  --pink-300: #c27e8e;
  --pink-400: #e08a9c;
  --pink-500: #f09dae;
  --pink-600: #f5b0c0;
  --text-primary: #ffffff;
  --text-secondary: #ffffff;
  --text-light: #ffffff;
  --bg-main: #000000;
  --bg-card: #111111;
  --border-color: #2a2a2a;
  --bg-code: #1a1a1a;
  --shadow-card: rgba(0, 0, 0, 0.3);
}

body {
  font-family: 'Georgia', 'Noto Serif SC', serif;
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.8;
  min-height: 100vh;
}

a {
  color: var(--pink-500);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--pink-600);
}

/* 导航栏 */
.navbar {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  padding: 0 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 60px;
}

.navbar-brand {
  font-family: 'DingTalk', 'Georgia', 'Noto Serif SC', serif;
  font-size: 1.3rem;
  color: var(--text-primary);
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.navbar-brand img {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
}

.navbar-brand:hover {
  color: var(--pink-500);
}

.navbar-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.navbar-links a {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-family: -apple-system, 'Segoe UI', sans-serif;
  position: relative;
  padding-bottom: 2px;
}

.navbar-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--pink-400);
  transition: width 0.25s;
}

.navbar-links a:hover::after,
.navbar-links a.active::after {
  width: 100%;
}

.navbar-links a.active {
  color: var(--pink-500);
}

/* 深色模式切换按钮 */
.dark-toggle {
  background: none;
  border: 1px solid var(--pink-200);
  border-radius: 20px;
  padding: 3px 12px;
  cursor: pointer;
  font-size: 0.85rem;
  font-family: -apple-system, 'Segoe UI', sans-serif;
  color: var(--text-secondary);
  transition: background 0.2s, color 0.2s;
  line-height: 1.6;
}

.dark-toggle:hover {
  background: var(--pink-100);
  color: var(--pink-500);
}

/* 主内容区 */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem;
}

/* 首页 Hero */
.hero {
  text-align: center;
  padding: 4rem 1rem 3rem;
}

.hero h1 {
  font-family: 'DingTalk', 'Georgia', 'Noto Serif SC', serif;
  font-size: 2.2rem;
  color: var(--text-primary);
  margin-bottom: 1rem;
  font-weight: normal;
}

.hero p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto 2rem;
}

.hero-line {
  width: 40px;
  height: 2px;
  background: var(--pink-300);
  margin: 0 auto 1.5rem;
}

.hero-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 1.5rem;
}

/* 文章卡片 */
.section-title {
  font-family: 'DingTalk', 'Georgia', 'Noto Serif SC', serif;
  font-size: 1.1rem;
  color: var(--text-light);
  font-family: -apple-system, 'Segoe UI', sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--pink-200);
}

.post-card {
  background: var(--bg-card);
  border: 1px solid var(--pink-200);
  border-radius: 6px;
  padding: 1.5rem 1.8rem;
  margin-bottom: 1.2rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.post-card:hover {
  border-color: var(--pink-300);
  box-shadow: 0 2px 12px var(--shadow-card);
}

.post-card h3 {
  font-family: 'DingTalk', 'Georgia', 'Noto Serif SC', serif;
  font-size: 1.15rem;
  margin-bottom: 0.4rem;
}

.post-card h3 a {
  color: var(--text-primary);
}

.post-card h3 a:hover {
  color: var(--pink-500);
}

.post-meta {
  font-size: 0.85rem;
  color: var(--text-light);
  font-family: -apple-system, 'Segoe UI', sans-serif;
  margin-bottom: 0.6rem;
}

.post-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.read-more {
  display: inline-block;
  margin-top: 0.5rem;
  font-size: 0.88rem;
  font-family: -apple-system, 'Segoe UI', sans-serif;
  color: var(--pink-400);
}

/* 文章详情页 */
.article-header {
  padding: 3rem 0 2rem;
  border-bottom: 1px solid var(--pink-200);
  margin-bottom: 2rem;
}

.article-header h1 {
  font-family: 'DingTalk', 'Georgia', 'Noto Serif SC', serif;
  font-size: 1.9rem;
  font-weight: normal;
  margin-bottom: 0.6rem;
}

.article-content {
  max-width: 680px;
  margin: 0 auto;
  padding-bottom: 3rem;
}

.article-content h2 {
  font-family: 'DingTalk', 'Georgia', 'Noto Serif SC', serif;
  font-size: 1.35rem;
  margin: 2rem 0 0.8rem;
  font-weight: normal;
  color: var(--pink-600);
}

.article-content p {
  margin-bottom: 1.2rem;
  font-size: 1rem;
  color: var(--text-secondary);
}

.article-content blockquote {
  border-left: 3px solid var(--pink-300);
  padding: 0.5rem 1.2rem;
  margin: 1.5rem 0;
  color: var(--text-secondary);
  background: var(--bg-code);
  border-radius: 0 4px 4px 0;
}

.article-content code {
  background: var(--bg-code);
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 0.9em;
}

.article-content ul, .article-content ol {
  margin: 1rem 0 1.2rem 1.5rem;
  color: var(--text-secondary);
}

.article-content li {
  margin-bottom: 0.4rem;
}

.article-nav {
  display: flex;
  justify-content: space-between;
  padding-top: 2rem;
  border-top: 1px solid var(--pink-200);
  font-family: -apple-system, 'Segoe UI', sans-serif;
  font-size: 0.9rem;
}

/* 关于页 */
.about-header {
  text-align: center;
  padding: 3rem 0 2rem;
}

.about-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 1.5rem;
  display: block;
}

.about-header h1 {
  font-family: 'DingTalk', 'Georgia', 'Noto Serif SC', serif;
  font-size: 1.8rem;
  font-weight: normal;
  margin-bottom: 0.5rem;
}

.about-header p {
  color: var(--text-secondary);
  font-size: 1rem;
}

.about-content {
  max-width: 600px;
  margin: 0 auto;
}

.about-section {
  margin-bottom: 2.5rem;
}

.about-section h2 {
  font-family: 'DingTalk', 'Georgia', 'Noto Serif SC', serif;
  font-size: 1.15rem;
  color: var(--pink-500);
  margin-bottom: 0.8rem;
  font-weight: normal;
}

.about-section p {
  color: var(--text-secondary);
  font-size: 0.98rem;
  margin-bottom: 0.6rem;
}

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  display: inline-block;
  padding: 4px 14px;
  background: var(--pink-100);
  color: var(--pink-500);
  border-radius: 20px;
  font-size: 0.85rem;
  font-family: -apple-system, 'Segoe UI', sans-serif;
}

/* 页脚 */
.footer {
  text-align: center;
  padding: 2rem;
  color: var(--text-light);
  font-size: 0.85rem;
  font-family: -apple-system, 'Segoe UI', sans-serif;
  border-top: 1px solid var(--pink-200);
  margin-top: 2rem;
}

.footer a {
  color: var(--text-light);
}

.footer a:hover {
  color: var(--pink-400);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 0.8rem;
}

.friend-links {
  display: flex;
  justify-content: center;
  gap: 1.2rem;
  margin-bottom: 0.8rem;
  flex-wrap: wrap;
}

.friend-links a {
  color: var(--text-light);
  font-size: 0.85rem;
}

.friend-links a:hover {
  color: var(--pink-400);
}

.friend-title {
  font-size: 0.8rem;
  color: var(--text-light);
  margin-bottom: 0.4rem;
  opacity: 0.7;
}

.site-days {
  font-size: 0.8rem;
  color: var(--text-light);
  margin-top: 0.4rem;
  opacity: 0.8;
}

/* 响应式 */
@media (max-width: 640px) {
  .navbar-inner {
    flex-direction: column;
    height: auto;
    padding: 0.8rem 0;
    gap: 0.5rem;
  }

  .navbar-links {
    gap: 1.2rem;
  }

  .hero h1 {
    font-size: 1.7rem;
  }

  .container {
    padding: 1.2rem;
  }

  .article-nav {
    flex-direction: column;
    gap: 0.8rem;
  }
}