/* 陈渠的个人技术分享 —— 全站样式
   浅色主题，正文最大宽度 760px，系统字体栈，无外部依赖。 */

:root {
  --bg: #fbfbfa;
  --fg: #222;
  --fg-muted: #666;
  --link: #1a5fb4;
  --code-bg: #f2f2ef;
  --rule: #e2e2dd;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: #fbfbfa;
  background: var(--bg);
  color: #222;
  color: var(--fg);
  font-family: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
}

a {
  color: #1a5fb4;
  color: var(--link);
  text-decoration: none;
}

a:hover,
a:focus {
  text-decoration: underline;
}

a:focus-visible {
  outline: 2px solid #1a5fb4;
  outline-offset: 2px;
}

/* ---------- 顶部导航 ---------- */

.site-header {
  border-bottom: 1px solid #e2e2dd;
  border-bottom: 1px solid var(--rule);
}

.site-header .inner {
  max-width: 760px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 6px 20px;
}

.site-title {
  font-weight: 600;
  font-size: 16px;
  color: #222;
  color: var(--fg);
}

.site-title:hover,
.site-title:focus {
  text-decoration: none;
  color: #1a5fb4;
  color: var(--link);
}

.site-nav {
  display: flex;
  gap: 18px;
  font-size: 15px;
}

.site-nav a[aria-current="page"] {
  color: #666;
  color: var(--fg-muted);
}

/* ---------- 正文容器 ---------- */

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 24px 56px;
}

/* ---------- 标题 ---------- */

h1 {
  font-size: 26px;
  line-height: 1.4;
  margin: 8px 0 12px;
  font-weight: 700;
}

h2 {
  font-size: 19px;
  line-height: 1.5;
  margin: 34px 0 12px;
  padding-left: 10px;
  border-left: 2px solid #1a5fb4;
  border-left: 2px solid var(--link);
  font-weight: 600;
}

h3 {
  font-size: 17px;
  margin: 24px 0 8px;
  font-weight: 600;
}

p {
  margin: 0 0 14px;
}

.subtitle {
  color: #666;
  color: var(--fg-muted);
  margin: 0 0 22px;
  font-size: 16px;
}

.meta {
  color: #666;
  color: var(--fg-muted);
  font-size: 14px;
  margin: 0 0 24px;
}

/* ---------- 通用元素 ---------- */

ul,
ol {
  padding-left: 1.4em;
  margin: 0 0 14px;
}

li {
  margin-bottom: 6px;
}

hr {
  border: 0;
  border-top: 1px solid #e2e2dd;
  border-top: 1px solid var(--rule);
  margin: 32px 0;
}

blockquote {
  margin: 0 0 16px;
  padding: 2px 0 2px 14px;
  border-left: 2px solid #e2e2dd;
  border-left: 2px solid var(--rule);
  color: #666;
  color: var(--fg-muted);
}

/* ---------- 代码 ---------- */

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 0.9em;
}

p code,
li code,
td code {
  background: #f2f2ef;
  background: var(--code-bg);
  padding: 1px 5px;
  border-radius: 3px;
}

pre {
  margin: 0 0 18px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

pre code {
  display: block;
  background: #f2f2ef;
  background: var(--code-bg);
  padding: 14px 16px;
  border-radius: 4px;
  font-size: 13px;
  line-height: 1.6;
  white-space: pre;
  tab-size: 4;
}

/* ---------- 表格 ---------- */

table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 20px;
  font-size: 15px;
  display: block;
  overflow-x: auto;
}

th,
td {
  border: 1px solid #e2e2dd;
  border: 1px solid var(--rule);
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
}

th {
  background: #f2f2ef;
  background: var(--code-bg);
  font-weight: 600;
}

/* ---------- 文章列表 ---------- */

.post-list {
  list-style: none;
  padding: 0;
  margin: 26px 0 0;
}

.post-list li {
  margin: 0 0 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid #e2e2dd;
  border-bottom: 1px solid var(--rule);
}

.post-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.post-list .date {
  display: block;
  font-size: 13px;
  color: #666;
  color: var(--fg-muted);
  font-variant-numeric: tabular-nums;
}

.post-list .title {
  display: inline-block;
  font-size: 18px;
  font-weight: 600;
  margin: 2px 0 4px;
  line-height: 1.5;
}

.post-list .summary {
  margin: 0;
  font-size: 15px;
  color: #666;
  color: var(--fg-muted);
}

.post-count {
  margin: 26px 0 0;
  padding-top: 16px;
  border-top: 1px solid #e2e2dd;
  border-top: 1px solid var(--rule);
  font-size: 14px;
  color: #666;
  color: var(--fg-muted);
}

/* ---------- 文章页 ---------- */

.back {
  display: inline-block;
  font-size: 14px;
  margin-bottom: 6px;
}

article {
  margin-top: 4px;
}

article p {
  margin: 0 0 16px;
}

/* ---------- 页脚 ---------- */

footer {
  text-align: center;
  font-size: 12px;
  color: #888;
  padding: 28px 24px 40px;
  line-height: 1.9;
}

footer p {
  margin: 0;
}

footer a {
  color: #888;
}

footer a:hover,
footer a:focus {
  color: #666;
  text-decoration: underline;
}

/* ---------- 移动端 ---------- */

@media (max-width: 600px) {
  .site-header .inner {
    padding: 12px 16px;
    flex-wrap: wrap;
  }

  .site-nav {
    width: 100%;
    gap: 16px;
    flex-wrap: wrap;
  }

  main {
    padding: 24px 16px 40px;
  }

  h1 {
    font-size: 22px;
  }

  h2 {
    font-size: 18px;
  }

  .post-list .title {
    font-size: 17px;
  }

  footer {
    padding: 24px 16px 32px;
  }
}

.police-beian img {
  vertical-align: -3px;
  margin-right: 2px;
}
.police-beian a {
  color: inherit;
  text-decoration: none;
}
.police-beian a:hover {
  text-decoration: underline;
}