/* =========================================================================
   dongjiyang.com — 白纸黑字，一栏到底。
   黑字、下划线链接、单栏。内容双语（中文 / English）：.lang 块按
   html[data-lang] 显示，见 lang.js。
   字体：拉丁用 Georgia，汉字用思源宋体（Noto Serif SC），回落到系统宋体。
   ========================================================================= */

@import url("https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;500;600&display=swap");

* { box-sizing: border-box; }

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

body {
  margin: 0 auto;
  max-width: 36em;
  padding: 3rem 1.25rem 5rem;
  background: #ffffff;
  color: #111111;
  font-family: Georgia, "Times New Roman", "Noto Serif SC", "Songti SC",
    "STSong", "SimSun", serif;
  font-size: 17px;
  line-height: 1.75;
}

h1 {
  font-size: 1.35em;
  font-weight: 600;
  margin: 0 0 1.25rem;
}

h2 {
  font-size: 1em;
  font-weight: 600;
  margin: 2.5rem 0 0.75rem;
}

/* 年终总结正文里的小标题 */
h3 {
  font-size: 1em;
  font-weight: 600;
  margin: 2rem 0 0.5rem;
}

p { margin: 0 0 1em; }

a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 2px;
}

a:hover { color: #555555; }

ul {
  list-style: none;
  margin: 0 0 1em;
  padding: 0;
}

li { margin: 0 0 0.4em; }

/* 正文里的列表要保留项目符号，首页的索引列表不要 */
.prose ul { list-style: disc; padding-left: 1.4em; margin-bottom: 1em; }
.prose li { margin: 0 0 0.3em; }

blockquote {
  margin: 0 0 1em;
  padding-left: 1em;
  border-left: 2px solid #e5e5e5;
  color: #555555;
}

time, .date {
  color: #777777;
  font-variant-numeric: tabular-nums;
  margin-right: 0.75em;
}

hr {
  border: none;
  border-top: 1px solid #e5e5e5;
  margin: 2.5rem 0;
}

footer {
  margin-top: 3.5rem;
  color: #777777;
  font-size: 0.9em;
}

footer a { color: inherit; }

/* --- 语言切换 ------------------------------------------------------------ */

.lang-switch {
  text-align: right;
  font-size: 0.85em;
  color: #777777;
  margin: 0 0 2rem;
}

.lang-switch a {
  color: #777777;
  text-decoration: none;
}

.lang-switch a:hover { color: #111111; text-decoration: underline; }

html[data-lang="en"] .lang-switch a[data-lang="en"],
html[data-lang="zh"] .lang-switch a[data-lang="zh"] {
  color: #111111;
  font-weight: 600;
}

/* 只显示当前语言的 .lang 块 */
html[data-lang="en"] .lang:not(.en),
html[data-lang="zh"] .lang:not(.zh) { display: none; }