/* ===== 基础布局与排版（与主题无关的结构样式） =====
   颜色等主题相关的值由 themes/<name>/style.css 通过 CSS 变量提供。 */

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
}

.container {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 20px;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-hover);
}

/* ===== 头部 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--header-bg);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 16px;
  height: 60px;
  flex-wrap: wrap;
}

.site-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
}

.site-subtitle {
  color: var(--text-muted);
  font-size: 0.85rem;
  display: none;
}

.site-nav {
  display: flex;
  gap: 4px;
  margin-left: auto;
}

.site-nav a {
  color: var(--text-muted);
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 0.95rem;
}

.site-nav a:hover {
  color: var(--text);
  background: var(--bg-soft);
}

/* 头部工具（搜索 + 主题） */
.header-tools {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 8px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 40px;
  height: 40px;
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 2px;
  width: 18px;
  margin: 0 auto;
  background: var(--text);
  border-radius: 1px;
}

/* ===== 搜索 ===== */
.search {
  position: relative;
}

.search input {
  width: 180px;
  height: 36px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--bg-soft);
  color: var(--text);
  font-size: 0.9rem;
  outline: none;
  transition: width 0.2s ease, border-color 0.2s ease;
}

.search input:focus {
  border-color: var(--accent);
  width: 220px;
}

.search-results {
  position: absolute;
  top: 44px;
  right: 0;
  width: 340px;
  max-width: 80vw;
  max-height: 420px;
  overflow-y: auto;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.search-result {
  display: block;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}

.search-result:last-child {
  border-bottom: none;
}

.search-result:hover {
  background: var(--bg-soft);
}

.search-result .sr-title {
  font-weight: 600;
}

.search-result .sr-type {
  font-size: 0.75rem;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 4px;
  padding: 0 4px;
  margin-right: 6px;
}

.search-result .sr-summary {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.search-result .sr-empty {
  padding: 12px 14px;
  color: var(--text-muted);
}

.search-result mark {
  background: var(--accent);
  color: #fff;
  padding: 0 2px;
  border-radius: 2px;
}

/* ===== 主题选择 ===== */
.theme-select {
  height: 36px;
  padding: 0 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-soft);
  color: var(--text);
  font-size: 0.85rem;
  cursor: pointer;
}

/* ===== 主体 ===== */
main {
  min-height: 70vh;
  padding: 32px 0 48px;
}

.hero {
  padding: 24px 0 8px;
}

.hero h1 {
  margin: 0 0 8px;
}

.hero p {
  color: var(--text-muted);
  margin: 0;
}

.section {
  margin-top: 40px;
}

.section-title,
.page-title {
  font-size: 1.4rem;
  margin: 0 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.page-desc {
  color: var(--text-muted);
  margin-top: -8px;
}

/* ===== 文章列表 ===== */
.post-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.post-item {
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}

.post-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
}

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

.post-date {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-left: 8px;
}

.post-summary {
  color: var(--text-muted);
  margin: 6px 0 0;
  font-size: 0.95rem;
}

.more-link {
  display: inline-block;
  margin-top: 16px;
  font-size: 0.95rem;
}

.empty {
  color: var(--text-muted);
}

/* ===== 微博 ===== */
.weibo-year {
  margin-top: 32px;
}

.weibo-year-title {
  font-size: 1.15rem;
  margin: 0 0 12px;
}

.weibo-month-title {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin: 18px 0 8px;
  padding-left: 8px;
  border-left: 3px solid var(--accent);
}

.weibo-item {
  padding: 14px 16px;
  margin-bottom: 12px;
  background: var(--bg-soft);
  border-radius: 8px;
  border: 1px solid var(--border);
}

.weibo-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.weibo-link {
  color: var(--text-muted);
  opacity: 0.5;
}

.weibo-link:hover {
  opacity: 1;
}

.weibo-content p {
  margin: 0 0 8px;
}

.weibo-content p:last-child {
  margin-bottom: 0;
}

/* ===== 文章正文 Markdown 样式 ===== */
.markdown h1,
.markdown h2,
.markdown h3,
.markdown h4 {
  line-height: 1.4;
  margin: 1.6em 0 0.6em;
}

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

.markdown h2 {
  font-size: 1.4rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 6px;
}

.markdown h3 {
  font-size: 1.2rem;
}

.markdown p {
  margin: 0.8em 0;
}

.markdown .anchor {
  float: left;
  margin-left: -1.1em;
  color: var(--text-muted);
  opacity: 0;
  text-decoration: none;
  font-weight: normal;
}

.markdown h1:hover .anchor,
.markdown h2:hover .anchor,
.markdown h3:hover .anchor,
.markdown h4:hover .anchor {
  opacity: 0.6;
}

.markdown ul,
.markdown ol {
  padding-left: 1.5em;
  margin: 0.6em 0;
}

.markdown li {
  margin: 0.2em 0;
}

.markdown blockquote {
  margin: 1em 0;
  padding: 4px 16px;
  border-left: 4px solid var(--accent);
  background: var(--bg-soft);
  color: var(--text-muted);
  border-radius: 0 6px 6px 0;
}

.markdown blockquote p {
  margin: 0.4em 0;
}

.markdown code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  background: var(--code-bg);
  color: var(--code-text);
  padding: 2px 5px;
  border-radius: 4px;
  font-size: 0.9em;
}

.markdown pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
  overflow-x: auto;
  line-height: 1.5;
}

.markdown pre code {
  background: none;
  color: inherit;
  padding: 0;
  font-size: 0.88rem;
}

.markdown img {
  max-width: 100%;
  border-radius: 6px;
}

.markdown table {
  border-collapse: collapse;
  width: 100%;
  margin: 1em 0;
}

.markdown th,
.markdown td {
  border: 1px solid var(--border);
  padding: 8px 12px;
  text-align: left;
}

.markdown th {
  background: var(--bg-soft);
}

.markdown hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 1.6em 0;
}

/* ===== 文章页 ===== */
.post-header {
  margin-bottom: 24px;
}

.post-title-full {
  font-size: 1.8rem;
  margin: 0 0 8px;
  line-height: 1.3;
}

.post-meta {
  color: var(--text-muted);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.tag {
  color: var(--accent);
  font-size: 0.85rem;
  margin-right: 6px;
}

/* ===== 分页 ===== */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 28px;
}

.page-info {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.page-link {
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
}

.page-link:hover {
  border-color: var(--accent);
}

/* ===== 错误页 ===== */
.error-page {
  text-align: center;
  padding: 80px 0;
}

.error-page h1 {
  font-size: 4rem;
  margin: 0;
}

/* ===== 页脚 ===== */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  text-align: center;
}

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

.site-footer a:hover {
  color: var(--accent);
}

/* ===== 响应式 ===== */
@media (max-width: 720px) {
  .site-subtitle {
    display: none;
  }

  .nav-toggle {
    display: flex;
    margin-left: auto;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--header-bg);
    border-bottom: 1px solid var(--border);
    padding: 8px 16px 12px;
    margin-left: 0;
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a {
    padding: 10px;
    display: block;
  }

  .header-tools {
    margin-left: 0;
  }

  .search input {
    width: 120px;
  }

  .search input:focus {
    width: 160px;
  }

  .search-results {
    position: fixed;
    left: 10px;
    right: 10px;
    top: 110px;
    width: auto;
    max-width: none;
  }

  .post-title-full {
    font-size: 1.5rem;
  }
}