/* ==========================================================================
   极简代码高亮 —— 代码块外观（与本地字体配合，无外链）
   ========================================================================== */

.rch-block {
  position: relative;
  margin: 1.6em 0;
  border-radius: 10px;
  overflow: hidden;
  background: #1f2430;
  box-shadow: 0 4px 18px rgba(15, 23, 42, .16);
}

.rch-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 7px 12px 7px 14px;
  background: #161b22;
  border-bottom: 1px solid rgba(255, 255, 255, .07);
}

.rch-lang {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .04em;
  color: #9aa7b8;
  text-transform: uppercase;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
}

.rch-copy {
  flex: none;
  padding: 3px 10px;
  font-size: 12px;
  line-height: 1.5;
  color: #c6d0dc;
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 6px;
  cursor: pointer;
  transition: background .18s ease, color .18s ease, border-color .18s ease;
  font-family: inherit;
}

.rch-copy:hover {
  background: rgba(255, 255, 255, .16);
  color: #fff;
}

.rch-copy.is-done {
  color: #7ee787;
  border-color: rgba(126, 231, 135, .45);
  background: rgba(126, 231, 135, .12);
}

/* 代码本体 */
.rch-block pre,
pre.rch-pre,
.wp-block-code {
  margin: 0 !important;
  padding: 16px 18px !important;
  background: #1f2430 !important;
  border: 0 !important;
  border-radius: 0 !important;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.rch-block pre code,
pre.rch-pre code,
.wp-block-code code {
  display: block;
  padding: 0 !important;
  background: none !important;
  border: 0 !important;
  color: #e6edf3;
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas,
    "Microsoft YaHei", monospace;
  font-size: 13.5px;
  line-height: 1.75;
  font-variant-ligatures: none;
  tab-size: 4;
  white-space: pre;
  word-break: normal;
  overflow-wrap: normal;
}

/* 本地等宽字体：拉丁字形本地自托管。
   注意：JetBrains Mono 不含 CJK 字形，中文注释由下方的系统中文字体兜底，
   这样既不额外加载几 MB 的中文字体，也不会出现方框乱码。 */
@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("fonts/jetbrains-mono-latin-400-normal.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191,
    U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* 行内代码 */
.entry-content :not(pre) > code,
.entry-content p code,
.entry-content li code,
.entry-content td code {
  padding: 2px 6px;
  font-size: .88em;
  color: #b5315f;
  background: #f4f5f7;
  border: 1px solid #e6e8ec;
  border-radius: 5px;
  font-family: "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
  word-break: break-word;
}

/* 滚动条美化 */
.rch-block pre::-webkit-scrollbar {
  height: 8px;
}

.rch-block pre::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, .04);
}

.rch-block pre::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, .18);
  border-radius: 4px;
}

.rch-block pre::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, .3);
}

/* 移动端收紧 */
@media (max-width: 640px) {
  .rch-block pre,
  pre.rch-pre,
  .wp-block-code {
    padding: 13px 12px !important;
  }

  .rch-block pre code,
  pre.rch-pre code,
  .wp-block-code code {
    font-size: 12.5px;
  }

  .rch-bar {
    padding: 6px 9px 6px 11px;
  }
}