:root{
  --fg:#111827; --muted:#6b7280; --bg:#ffffff; --line:#e5e7eb;
  --accent:#1d4ed8; --soft:#f8fafc;
  --measure:44rem;
}
@media (prefers-color-scheme: dark){
  :root{ --fg:#e5e7eb; --muted:#9ca3af; --bg:#0b0f14; --line:#1f2937; --soft:#111827; --accent:#7aa2ff; }
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; background:var(--bg); color:var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans CJK SC",
               "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size:17px; line-height:1.85; letter-spacing:.01em;
}
a{color:var(--accent); text-decoration:none}
a:hover{text-decoration:underline; text-underline-offset:3px}
.wrap{max-width:var(--measure); margin:0 auto; padding:0 20px}
header.site{border-bottom:1px solid var(--line); padding:28px 0 20px; margin-bottom:40px}
header.site .brand{display:flex; align-items:baseline; gap:12px; flex-wrap:wrap}
header.site h1{margin:0; font-size:22px; letter-spacing:.02em}
header.site .sub{color:var(--muted); font-size:14px}
nav.site{margin-top:10px; font-size:14px; color:var(--muted)}
nav.site a{margin-right:16px; color:var(--muted)}
nav.site a:hover{color:var(--accent)}
main{padding-bottom:64px}
h1.post-title{font-size:30px; line-height:1.35; margin:0 0 10px; letter-spacing:-.01em}
.meta{color:var(--muted); font-size:14px; margin-bottom:32px}
.meta .tag{display:inline-block; border:1px solid var(--line); border-radius:999px; padding:1px 10px; margin-right:8px; font-size:13px; color:var(--muted)}
article h2{font-size:21px; margin:36px 0 10px; letter-spacing:-.005em}
article h3{font-size:18px; margin:28px 0 8px}
article p{margin:0 0 16px}
article ul,article ol{margin:0 0 16px; padding-left:1.4em}
article li{margin:6px 0}
article blockquote{margin:20px 0; padding:10px 16px; border-left:3px solid var(--accent); background:var(--soft); color:var(--muted)}
article strong{font-weight:650}
article hr{border:0; border-top:1px solid var(--line); margin:32px 0}
article code{background:var(--soft); padding:1px 6px; border-radius:6px; font-size:.92em}
.list{list-style:none; padding:0; margin:0}
.list li{padding:22px 0; border-bottom:1px solid var(--line)}
.list li:first-child{border-top:1px solid var(--line)}
.list .date{color:var(--muted); font-size:13px; letter-spacing:.04em}
.list a.title{display:block; font-size:20px; font-weight:650; margin:6px 0; color:var(--fg)}
.list a.title:hover{color:var(--accent); text-decoration:none}
.list .desc{color:var(--muted); font-size:15px; margin:0}
.back{margin:8px 0 28px; font-size:14px}
footer.site{border-top:1px solid var(--line); padding:24px 0 40px; color:var(--muted); font-size:14px}
footer.site a{color:var(--muted)}
@media (max-width:560px){
  body{font-size:16px}
  h1.post-title{font-size:25px}
  .wrap{padding:0 16px}
}

/* ── 栏目 / 连载 / 归档 / 搜索 ── */
.section-title{font-size:28px; margin:0 0 8px; letter-spacing:-.01em}
.section-desc{color:var(--muted); margin:0 0 28px}
.section-h{font-size:16px; text-transform:uppercase; letter-spacing:.08em; color:var(--muted); margin:40px 0 14px}
.hero{border-bottom:1px solid var(--line); padding-bottom:24px; margin-bottom:8px}
.hero h2{margin:0 0 8px; font-size:22px}
.hero p{margin:0; color:var(--muted)}
.cards{display:grid; grid-template-columns:repeat(auto-fill,minmax(240px,1fr)); gap:14px}
.card{display:block; border:1px solid var(--line); border-radius:12px; padding:16px; color:inherit}
.card:hover{border-color:var(--accent); text-decoration:none}
.card-title{font-weight:650; margin-bottom:6px}
.card-desc{color:var(--muted); font-size:14px; line-height:1.65}
.card-meta{color:var(--muted); font-size:12px; margin-top:10px}
.series-list{list-style:none; padding:0; margin:0}
.series-list li{display:flex; flex-wrap:wrap; gap:10px; align-items:baseline; padding:12px 0; border-bottom:1px solid var(--line)}
.series-list a{font-weight:600}
.status{font-size:12px; border:1px solid var(--line); border-radius:999px; padding:1px 8px; color:var(--muted); margin-left:8px}
.dim{color:var(--muted); font-size:13px}
.meta-line{color:var(--muted); font-size:13px; margin-bottom:6px}
.chip{display:inline-block; border:1px solid var(--line); border-radius:999px; padding:0 8px; font-size:12px; color:var(--muted); margin-left:6px}
.chip:hover{color:var(--accent); border-color:var(--accent); text-decoration:none}
.series-box{border-left:3px solid var(--accent); background:var(--soft); padding:8px 12px; margin-bottom:20px; font-size:14px; color:var(--muted)}
.pager{display:flex; gap:20px; justify-content:space-between; border-top:1px solid var(--line); margin-top:36px; padding-top:20px}
.pager a{display:flex; flex-direction:column; gap:4px; font-size:15px; max-width:48%}
.pager span{font-size:12px; color:var(--muted)}
.month{font-size:15px; color:var(--muted); margin:28px 0 8px}
.search-input{width:100%; padding:12px 14px; font-size:16px; border:1px solid var(--line); border-radius:10px; background:var(--bg); color:var(--fg); margin:8px 0 24px}

/* 文章内嵌图 */
article img{max-width:100%; height:auto; display:block; margin:10px 0 20px; border:1px solid var(--line); border-radius:10px}
article p:has(> img){margin:0}

.related{margin-top:36px; border-top:1px solid var(--line); padding-top:8px}
.related .list li{padding:14px 0}

/* 表格：可读、可横向滚动 */
.table-wrap{overflow-x:auto; margin:14px 0 22px; border:1px solid var(--line); border-radius:10px}
article table{width:100%; border-collapse:collapse; font-size:15px; min-width:520px}
article th,article td{padding:10px 14px; border-bottom:1px solid var(--line); text-align:left; vertical-align:top}
article th{background:var(--soft); font-weight:650; white-space:nowrap}
article tr:last-child td{border-bottom:0}
article img{width:100%}
.crumbs{font-size:13px; color:var(--muted); margin:0 0 18px}
.crumbs a{color:var(--muted)}
.crumbs span{margin:0 6px}
@media (max-width:560px){
  article th,article td{padding:8px 10px; font-size:14px}
}

/* 手机端隐藏头部副标题（首页 hero 已重复） */
@media (max-width:560px){ header.site .sub{display:none} }

/* 目录 */
.toc{border:1px solid var(--line); border-radius:10px; padding:12px 16px; margin:0 0 24px; background:var(--soft)}
.toc summary{cursor:pointer; font-weight:650; font-size:14px; color:var(--muted); letter-spacing:.04em}
.toc ol{margin:10px 0 0; padding-left:20px}
.toc li{margin:6px 0; font-size:15px}
.toc a{color:inherit}
article h2,article h3{scroll-margin-top:24px}

/* 表格横向滑动提示 */
.scroll-hint{font-size:12px; color:var(--muted); margin:-4px 0 8px; text-align:right; transition:opacity .2s}