/* Markdown 样式 */
.markdown-body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: #24292e;
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
  margin-top: 24px;
  margin-bottom: 16px;
  font-weight: 600;
  line-height: 1.25;
  color: #24292e;
}

.markdown-body h1 {
  font-size: 2em;
  border-bottom: 1px solid #eaecef;
  padding-bottom: 0.3em;
}

.markdown-body h2 {
  font-size: 1.5em;
  border-bottom: 1px solid #eaecef;
  padding-bottom: 0.3em;
}

.markdown-body h3 {
  font-size: 1.25em;
}

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

.markdown-body ul,
.markdown-body ol {
  margin-bottom: 16px;
  padding-left: 2em;
}

.markdown-body li {
  margin-bottom: 0.25em;
}

.markdown-body code {
  padding: 0.2em 0.4em;
  margin: 0;
  font-size: 85%;
  background-color: rgba(27, 31, 35, 0.05);
  border-radius: 3px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

.markdown-body pre {
  padding: 16px;
  overflow: auto;
  font-size: 85%;
  line-height: 1.45;
  background-color: #f6f8fa;
  border-radius: 6px;
  margin-bottom: 16px;
}

.markdown-body pre code {
  display: inline;
  max-width: auto;
  padding: 0;
  margin: 0;
  overflow: visible;
  line-height: inherit;
  word-wrap: normal;
  background-color: transparent;
  border: 0;
}

.markdown-body blockquote {
  padding: 0 1em;
  color: #6a737d;
  border-left: 0.25em solid #dfe2e5;
  margin-bottom: 16px;
}

.markdown-body table {
  border-spacing: 0;
  border-collapse: collapse;
  margin-bottom: 16px;
  width: 100%;
}

.markdown-body table th,
.markdown-body table td {
  padding: 6px 13px;
  border: 1px solid #dfe2e5;
}

.markdown-body table th {
  font-weight: 600;
  background-color: #f6f8fa;
}

.markdown-body table tr:nth-child(2n) {
  background-color: #f6f8fa;
}

.markdown-body hr {
  height: 0.25em;
  padding: 0;
  margin: 24px 0;
  background-color: #e1e4e8;
  border: 0;
}

.markdown-body a {
  color: #0366d6;
  text-decoration: none;
}

.markdown-body a:hover {
  text-decoration: underline;
}

.markdown-body img {
  max-width: 100%;
  height: auto;
  margin-bottom: 16px;
}

/* 文章列表样式 */
.article-list {
  display: grid;
  gap: 20px;
}

.article-item {
  margin-bottom: 24px;
  padding: 20px;
  border: 1px solid #e1e4e8;
  border-radius: 6px;
  transition: box-shadow 0.2s;
}

.article-item:hover {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.article-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

.article-title {
  font-size: 1.5em;
  font-weight: 600;
  margin-bottom: 12px;
  color: #24292e;
}

.article-meta-preview {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: #6a737d;
  flex-wrap: wrap;
}

.badge {
  padding: 4px 8px;
  border-radius: 3px;
  font-size: 12px;
  font-weight: 600;
}

.badge-recommended {
  background-color: #ffd700;
  color: #24292e;
}

.badge-hot {
  background-color: #ff4444;
  color: #ffffff;
}

.article-topic {
  padding: 4px 8px;
  background-color: #f1f8ff;
  color: #0366d6;
  border-radius: 3px;
}

.article-date {
  color: #6a737d;
}

.article-views {
  color: #6a737d;
}

/* 文章详情页样式 */
article {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
}

article h1 {
  font-size: 2em;
  margin-bottom: 16px;
  color: #24292e;
}

.article-meta {
  margin-bottom: 24px;
  padding: 16px;
  background-color: #f6f8fa;
  border-radius: 6px;
  font-size: 14px;
  color: #6a737d;
}

.meta-item {
  margin-right: 24px;
}

.meta-item strong {
  color: #24292e;
}

/* 通用样式 */
body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  background-color: #f6f8fa;
  color: #24292e;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  background-color: #ffffff;
  min-height: 100vh;
}

/* 导航栏 */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  background-color: #24292e;
  color: #ffffff;
  margin: 0 -20px 30px -20px;
  flex-wrap: wrap;
  gap: 16px;
}

.nav-brand a {
  color: #ffffff;
  text-decoration: none;
  font-size: 1.2em;
  font-weight: 600;
}

.nav-brand a:hover {
  color: #f1f8ff;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* 搜索框 */
.search-box {
  display: flex;
  gap: 8px;
}

.search-input {
  padding: 8px 12px;
  border: 1px solid #d1d5da;
  border-radius: 6px;
  font-size: 14px;
  min-width: 200px;
}

.search-input:focus {
  outline: none;
  border-color: #0366d6;
  box-shadow: 0 0 0 3px rgba(3, 102, 214, 0.1);
}

.search-btn {
  padding: 8px 16px;
  background-color: #0366d6;
  color: #ffffff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  transition: background-color 0.2s;
}

.search-btn:hover {
  background-color: #0256cc;
}

/* 域名购买链接 */
.domain-link {
  padding: 8px 16px;
  border: 1px solid #f59e0b;
  border-radius: 6px;
  background-color: #f59e0b;
  color: #ffffff;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s;
  white-space: nowrap;
}

.domain-link:hover {
  background-color: #d97706;
  border-color: #d97706;
  color: #ffffff;
  text-decoration: none;
}

/* 用户操作 */
.user-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-login,
.btn-register {
  padding: 8px 16px;
  border: 1px solid #d1d5da;
  border-radius: 6px;
  background-color: #ffffff;
  color: #24292e;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.2s;
}

.btn-login:hover,
.btn-register:hover {
  background-color: #f6f8fa;
}

.btn-register {
  background-color: #0366d6;
  color: #ffffff;
  border-color: #0366d6;
}

.btn-register:hover {
  background-color: #0256cc;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #ffffff;
}

.user-info span {
  font-size: 14px;
}

.btn-logout {
  padding: 6px 12px;
  background-color: transparent;
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 4px;
  cursor: pointer;
  font-size: 12px;
  transition: all 0.2s;
}

.btn-logout:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.header {
  border-bottom: 1px solid #e1e4e8;
  padding: 30px 0;
  margin-bottom: 30px;
}

.header h1 {
  margin: 0 0 8px 0;
  font-size: 2em;
  color: #24292e;
}

.header-subtitle {
  color: #6a737d;
  margin: 8px 0 0 0;
  font-size: 1.1em;
}

/* 排序区域 */
.sort-section {
  margin-bottom: 40px;
  padding: 24px;
  background-color: #f6f8fa;
  border-radius: 8px;
  border: 1px solid #e1e4e8;
}

.sort-header {
  margin-bottom: 16px;
}

.sort-header h2 {
  margin: 0;
  font-size: 1.3em;
  color: #24292e;
}

.sort-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.sort-btn {
  padding: 8px 16px;
  border: 1px solid #d1d5da;
  background-color: #ffffff;
  color: #24292e;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.2s;
  font-family: inherit;
}

.sort-btn:hover {
  background-color: #f1f8ff;
  border-color: #0366d6;
  color: #0366d6;
}

.sort-btn.active {
  background-color: #0366d6;
  border-color: #0366d6;
  color: #ffffff;
}

/* 文章区域 */
.articles-section {
  margin-bottom: 40px;
}

.section-title {
  font-size: 1.5em;
  margin-bottom: 24px;
  color: #24292e;
  padding-bottom: 12px;
  border-bottom: 2px solid #e1e4e8;
}

.back-link {
  display: inline-block;
  margin-bottom: 20px;
  color: #0366d6;
  text-decoration: none;
}

.back-link:hover {
  text-decoration: underline;
}

.empty-state,
.error-state {
  text-align: center;
  padding: 40px;
  color: #6a737d;
}

.error-state {
  color: #d73a49;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .navbar {
    flex-direction: column;
    gap: 16px;
    padding: 16px;
  }

  .nav-links {
    width: 100%;
    justify-content: space-around;
  }

  .tags-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .tags-container {
    width: 100%;
  }

  .markdown-body,
  article {
    padding: 15px;
  }

  .article-item {
    padding: 15px;
  }

  .article-title {
    font-size: 1.25em;
  }

  .article-meta-preview {
    flex-direction: column;
    gap: 8px;
  }

  .nav-right {
    width: 100%;
    flex-direction: column;
  }

  .search-box {
    width: 100%;
  }

  .search-input {
    flex: 1;
    min-width: 0;
  }
}

/* 模态框样式 */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  align-items: center;
  justify-content: center;
}

.modal-content {
  background-color: #ffffff;
  padding: 30px;
  border-radius: 8px;
  max-width: 400px;
  width: 90%;
  position: relative;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.close {
  position: absolute;
  right: 15px;
  top: 15px;
  font-size: 28px;
  font-weight: bold;
  color: #6a737d;
  cursor: pointer;
  line-height: 1;
}

.close:hover {
  color: #24292e;
}

.modal-content h2 {
  margin-top: 0;
  margin-bottom: 20px;
  color: #24292e;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  margin-bottom: 6px;
  color: #24292e;
  font-size: 14px;
  font-weight: 500;
}

.form-group input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid #d1d5da;
  border-radius: 6px;
  font-size: 14px;
  box-sizing: border-box;
}

.form-group input:focus {
  outline: none;
  border-color: #0366d6;
  box-shadow: 0 0 0 3px rgba(3, 102, 214, 0.1);
}

.btn-primary {
  width: 100%;
  padding: 10px;
  background-color: #0366d6;
  color: #ffffff;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s;
}

.btn-primary:hover {
  background-color: #0256cc;
}

/* 详情页分类标签 */
.article-tags-section {
  margin: 24px 0;
  padding: 20px;
  background-color: #f6f8fa;
  border-radius: 8px;
  border: 1px solid #e1e4e8;
}

.article-tags-header h3 {
  margin: 0 0 16px 0;
  font-size: 1.1em;
  color: #24292e;
}

.article-tags-container {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.article-tag-btn {
  padding: 8px 16px;
  border: 1px solid #d1d5da;
  background-color: #ffffff;
  color: #24292e;
  border-radius: 6px;
  text-decoration: none;
  font-size: 14px;
  transition: all 0.2s;
  display: inline-block;
}

.article-tag-btn:hover {
  background-color: #f1f8ff;
  border-color: #0366d6;
  color: #0366d6;
}

.article-tag-btn.active {
  background-color: #0366d6;
  border-color: #0366d6;
  color: #ffffff;
}

/* 加载状态 */
.loading-state {
  text-align: center;
  padding: 40px 20px;
  color: #6a737d;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  margin: 0 auto 16px;
  border: 4px solid #f3f4f6;
  border-top-color: #0366d6;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.loading-state p {
  margin: 0;
  font-size: 14px;
}

/* 错误状态 */
.error-state {
  padding: 20px;
  background-color: #ffeef0;
  border: 1px solid #fdaeb7;
  border-radius: 6px;
  color: #86181d;
  text-align: center;
}

/* 空状态 */
.empty-state {
  padding: 40px 20px;
  text-align: center;
  color: #6a737d;
  font-size: 14px;
}

.tag-loading,
.tag-empty {
  color: #6a737d;
  font-size: 14px;
  font-style: italic;
}

/* 文章元信息优化 */
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid #e1e4e8;
  margin-bottom: 24px;
  font-size: 14px;
  color: #6a737d;
}

.article-meta .meta-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

.article-meta .meta-item strong {
  color: #24292e;
  font-weight: 600;
}

/* 分页样式 */
.pagination-container {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid #e1e4e8;
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
}

.pagination-btn {
  padding: 8px 12px;
  border: 1px solid #d1d5da;
  background-color: #ffffff;
  color: #24292e;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
  min-width: 40px;
  text-align: center;
}

.pagination-btn:hover:not(.disabled):not(.active) {
  background-color: #f6f8fa;
  border-color: #0366d6;
  color: #0366d6;
}

.pagination-btn.active {
  background-color: #0366d6;
  border-color: #0366d6;
  color: #ffffff;
  font-weight: 600;
}

.pagination-btn.disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.pagination-ellipsis {
  padding: 8px 4px;
  color: #6a737d;
  font-size: 14px;
}

.pagination-info {
  margin-left: 16px;
  color: #6a737d;
  font-size: 14px;
}

@media (max-width: 768px) {
  .pagination {
    gap: 4px;
  }

  .pagination-btn {
    padding: 6px 10px;
    font-size: 12px;
    min-width: 36px;
  }

  .pagination-info {
    width: 100%;
    text-align: center;
    margin-left: 0;
    margin-top: 12px;
  }
}

/* Footer 样式 */
.site-footer {
  margin-top: 60px;
  padding: 40px 20px;
  border-top: 1px solid #eaecef;
  background-color: #f6f8fa;
  text-align: center;
}

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

.footer-content p {
  margin: 10px 0;
  color: #586069;
  font-size: 14px;
}

.footer-links {
  margin-top: 15px;
}

.footer-links a {
  color: #0366d6;
  text-decoration: none;
  margin: 0 5px;
}

.footer-links a:hover {
  text-decoration: underline;
}