/* ============================================================
   markdown.css —— 文章正文渲染样式（配合 marked + highlight.js）
   ============================================================ */
.md-body {
  font-size: 15.2px;
  line-height: 1.85;
  color: #dfe5ec;
  word-wrap: break-word;
}
.md-body > *:first-child { margin-top: 0; }

.md-body h1, .md-body h2, .md-body h3, .md-body h4, .md-body h5 {
  margin: 1.9em 0 .8em; line-height: 1.4; font-weight: 700; letter-spacing: .3px;
  scroll-margin-top: calc(var(--header-h) + 16px);
}
.md-body h1 { font-size: 26px; padding-bottom: .35em; border-bottom: 1px solid var(--border); }
.md-body h2 {
  font-size: 21px; padding-left: 12px; position: relative;
}
.md-body h2::before {
  content: ""; position: absolute; left: 0; top: .35em; bottom: .3em; width: 3px;
  border-radius: 3px; background: linear-gradient(var(--yellow), var(--cyan));
}
.md-body h3 { font-size: 17.5px; color: #eaf0f7; }
.md-body h4 { font-size: 15.5px; color: var(--text-dim); }

.md-body p { margin: .95em 0; }

.md-body a {
  color: var(--cyan); border-bottom: 1px dashed rgba(46, 230, 197, .45);
  transition: .18s;
}
.md-body a:hover { color: var(--yellow); border-bottom-color: var(--yellow); }

.md-body strong { color: #fff; font-weight: 700; }
.md-body em { color: #ffe6a8; font-style: normal; padding: 0 2px; }
.md-body del { color: var(--text-mute); }

.md-body ul, .md-body ol { margin: .9em 0; padding-left: 1.6em; }
.md-body li { margin: .38em 0; }
.md-body ul { list-style: none; padding-left: 1.2em; }
.md-body ul > li { position: relative; }
.md-body ul > li::before {
  content: ""; position: absolute; left: -.95em; top: .72em;
  width: 5px; height: 5px; border-radius: 50%; background: var(--yellow); opacity: .85;
}
.md-body ol { list-style: decimal; padding-left: 1.6em; }
.md-body ol > li::marker { color: var(--cyan); font-weight: 600; }

.md-body blockquote {
  margin: 1.2em 0; padding: .8em 1.1em;
  border-left: 3px solid var(--yellow);
  background: rgba(253, 218, 95, .06); border-radius: 0 10px 10px 0;
  color: #cdb98a;
}
.md-body blockquote p { margin: .3em 0; }

.md-body hr { border: 0; height: 1px; background: var(--border); margin: 2em 0; }

.md-body img {
  display: block; max-width: 100%; margin: 1.3em auto; border-radius: 10px;
  border: 1px solid var(--border); transition: opacity .3s; cursor: zoom-in;
  background: #0f1318;
}
.md-body img:hover { border-color: var(--border-2); }

.md-body table {
  width: 100%; margin: 1.3em 0; border-collapse: collapse; font-size: 14px;
  display: block; overflow-x: auto;
}
.md-body thead th {
  background: rgba(255, 255, 255, .06); color: #fff; font-weight: 600;
  padding: 9px 12px; border: 1px solid var(--border); text-align: left; white-space: nowrap;
}
.md-body td { padding: 8px 12px; border: 1px solid var(--border); color: #cfd6de; }
.md-body tbody tr:nth-child(even) { background: rgba(255, 255, 255, .022); }
.md-body tbody tr:hover { background: rgba(46, 230, 197, .05); }

/* 行内代码 */
.md-body code {
  font-family: var(--mono); font-size: .88em; padding: .16em .45em;
  background: rgba(46, 230, 197, .10); color: #7ef0dc;
  border-radius: 5px; border: 1px solid rgba(46, 230, 197, .16);
}
/* 代码块 */
.md-body pre {
  margin: 1.4em 0; padding: 15px 16px; border-radius: 12px; overflow: auto;
  background: #0c1015 !important; border: 1px solid var(--border);
  position: relative; line-height: 1.65;
}
.md-body pre code {
  background: none !important; border: none; padding: 0; color: #d6dde5;
  font-family: var(--mono); font-size: 13.2px;
}
.md-body .copy-code {
  position: absolute; top: 8px; right: 8px; z-index: 2;
  padding: 3px 9px; font-size: 11.5px; border-radius: 6px; cursor: pointer;
  background: rgba(255, 255, 255, .07); border: 1px solid var(--border);
  color: var(--text-dim); opacity: 0; transition: .2s;
}
.md-body pre:hover .copy-code { opacity: 1; }
.md-body .copy-code:hover { color: var(--text); background: rgba(255, 255, 255, .14); }
.md-body .copy-code.ok { color: var(--ok); border-color: rgba(74, 222, 128, .5); opacity: 1; }

.md-body kbd {
  font-family: var(--mono); font-size: 12px; padding: 2px 7px; border-radius: 5px;
  background: #1b2027; border: 1px solid var(--border-2); border-bottom-width: 2px; color: #e6ebf2;
}

/* 任务列表 */
.md-body input[type="checkbox"] { margin-right: 6px; }

/* 图片灯箱 */
#imgLightbox {
  position: fixed; inset: 0; z-index: 2500; display: none;
  background: rgba(3, 5, 8, .9); align-items: center; justify-content: center; padding: 30px;
}
#imgLightbox.show { display: flex; }
#imgLightbox img { max-width: 96%; max-height: 92%; border-radius: 10px; box-shadow: var(--shadow); }
#imgLightbox .lb-close {
  position: absolute; top: 18px; right: 22px; font-size: 26px; color: #fff;
  background: none; border: none; cursor: pointer; opacity: .7;
}
#imgLightbox .lb-close:hover { opacity: 1; }

/* 目录 */
.md-toc { font-size: 13.5px; }
.md-toc a {
  display: block; padding: 5px 10px; border-radius: 7px; color: var(--text-dim);
  border-left: 2px solid transparent; transition: .18s;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.md-toc a:hover { background: var(--panel-2); color: var(--text); }
.md-toc a.active { color: var(--yellow); border-left-color: var(--yellow); background: rgba(253, 218, 95, .08); }
.md-toc .lv3 { padding-left: 22px; font-size: 12.8px; }