/* ===== 基础 ===== */
:root{
  --ink:#111827; --ink-2:#374151; --muted:#6b7280; --line:#e8e6e1;
  --bg:#fdfcfa; --paper:#fff; --accent:#1f2937;
  --wrap:1080px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font:16px/1.85 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{line-height:1.35;font-weight:600;letter-spacing:-.01em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}

/* ===== 头部 ===== */
.site-head{border-bottom:1px solid var(--line);background:var(--paper);position:sticky;top:0;z-index:20}
.head-inner{display:flex;align-items:center;gap:32px;height:68px}
.brand{font-size:19px;font-weight:700;letter-spacing:-.02em;white-space:nowrap}
.nav{display:flex;gap:22px;flex:1;overflow-x:auto;scrollbar-width:none}
.nav::-webkit-scrollbar{display:none}
.nav a{font-size:14.5px;color:var(--muted);white-space:nowrap;padding:4px 0;border-bottom:2px solid transparent;transition:.15s}
.nav a:hover,.nav a.on{color:var(--ink);border-bottom-color:var(--ink)}
.search input{
  width:180px;padding:7px 12px;border:1px solid var(--line);border-radius:20px;
  background:#faf9f7;font-size:13.5px;font-family:inherit;outline:none;transition:.2s;
}
.search input:focus{border-color:#c9c5bc;background:#fff;width:210px}

/* ===== 主体 ===== */
.main{padding:44px 24px 80px;min-height:60vh}

/* 分类条 */
.cats-bar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:36px}
.cats-bar a{
  font-size:13.5px;padding:5px 14px;border:1px solid var(--line);border-radius:20px;
  color:var(--ink-2);background:var(--paper);transition:.15s;
}
.cats-bar a:hover{border-color:#c9c5bc;transform:translateY(-1px)}
.cats-bar span{color:#b9b4aa;font-size:12px;margin-left:5px}

/* 头图文章 */
.hero{position:relative;margin-bottom:44px;padding-bottom:44px;border-bottom:1px solid var(--line)}
.hero-link{display:grid;grid-template-columns:1.1fr 1fr;gap:36px;align-items:center}
.hero-cover img{width:100%;aspect-ratio:1200/630;object-fit:cover;border-radius:8px}
.hero-body h2{font-size:31px;margin:14px 0 14px;letter-spacing:-.02em;text-wrap:balance}
.hero-body h2:hover{opacity:.7}
/* 整块可点：标题链接用伪元素铺满整个 .hero，避免 <a> 套 <a> */
.hero-title a{color:inherit;text-decoration:none}
.hero-title a::after{content:"";position:absolute;inset:0;z-index:1}
.hero .meta .cat{position:relative;z-index:2}
.read-more{position:relative;z-index:0}
.excerpt{color:var(--muted);font-size:14.5px;line-height:1.75;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.read-more{display:inline-block;margin-top:16px;font-size:13.5px;color:var(--ink);border-bottom:1px solid var(--ink);padding-bottom:1px}

/* 元信息 */
.meta{display:flex;gap:14px;align-items:center;font-size:12.5px;color:#9a958c;flex-wrap:wrap}
.meta .cat{color:var(--ink);font-weight:500;background:#f3f1ec;padding:2px 9px;border-radius:4px;font-size:12px}
.tag-top{color:#b45309;background:#fef3e2;padding:1px 7px;border-radius:4px}
.tag-draft{color:#b91c1c;background:#fef2f2;padding:1px 7px;border-radius:4px}

/* 列表 */
.post-list{display:flex;flex-direction:column}
.post-item{
  display:flex;gap:32px;justify-content:space-between;
  padding:26px 0;border-bottom:1px solid var(--line);
}
.post-item:last-child{border-bottom:0}
.post-main{flex:1;min-width:0}
.post-main h3{font-size:19.5px;margin:8px 0 8px;text-wrap:balance}
.post-main h3 a:hover{opacity:.7}
.post-thumb{flex:0 0 190px}
.post-thumb img{width:190px;height:100px;object-fit:cover;border-radius:6px}

/* 分页 */
.pager{display:flex;gap:8px;justify-content:center;margin-top:48px}
.pager a{
  min-width:36px;height:36px;line-height:34px;text-align:center;padding:0 10px;
  border:1px solid var(--line);border-radius:6px;font-size:13.5px;color:var(--ink-2);background:var(--paper);
}
.pager a:hover{border-color:#c9c5bc}
.pager a.on{background:var(--ink);color:#fff;border-color:var(--ink)}

/* ===== 文章页 ===== */
.article{max-width:740px;margin:0 auto}
.crumb{font-size:13px;color:var(--muted);margin-bottom:24px;display:flex;gap:8px}
.crumb a:hover{color:var(--ink)}
.art-head h1{font-size:35px;line-height:1.32;margin:0 0 18px;letter-spacing:-.025em}
.art-summary{color:var(--muted);font-size:15.5px;line-height:1.8;margin:20px 0 0;padding-left:14px;border-left:2px solid var(--line)}
.art-cover{margin:32px 0}
.art-cover img{width:100%;border-radius:8px}
.art-body{margin-top:32px;font-size:16.5px;line-height:1.95;color:#252525}
.art-body p{margin:0 0 1.35em}
.art-body h2{font-size:24px;margin:2em 0 .7em;padding-top:.2em}
.art-body h3{font-size:19px;margin:1.7em 0 .6em}
.art-body h4{font-size:17px;margin:1.5em 0 .5em}
.art-body ul,.art-body ol{padding-left:1.4em;margin:0 0 1.35em}
.art-body li{margin:.4em 0}
.art-body blockquote{
  margin:1.6em 0;padding:6px 20px;border-left:3px solid #ddd8cf;
  color:var(--muted);background:#faf9f7;
}
.art-body blockquote p{margin:.5em 0}
.art-body code{background:#f3f1ec;padding:2px 6px;border-radius:4px;font-size:.9em;font-family:ui-monospace,Menlo,Consolas,monospace}
.art-body pre{background:#1b1b1b;color:#eee;padding:16px 20px;border-radius:8px;overflow-x:auto;margin:1.4em 0;font-size:13.5px;line-height:1.7}
.art-body pre code{background:none;color:inherit;padding:0}
.art-body a{color:#1a4fa0;border-bottom:1px solid rgba(26,79,160,.3)}
.art-body a:hover{border-bottom-color:#1a4fa0}
.art-body img{border-radius:8px;margin:1.4em 0}
.art-body table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:14.5px}
.art-body th,.art-body td{border:1px solid var(--line);padding:9px 12px;text-align:left}
.art-body th{background:#faf9f7;font-weight:600}
.art-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}

.art-tags{display:flex;gap:10px;flex-wrap:wrap;margin:40px 0 0}
.art-tags a{font-size:13px;color:var(--muted);background:#f3f1ec;padding:4px 11px;border-radius:20px}
.art-tags a:hover{color:var(--ink)}

.art-nav{display:flex;justify-content:space-between;gap:16px;margin:48px 0 0;padding-top:26px;border-top:1px solid var(--line)}
.art-nav a{max-width:46%;font-size:14px;line-height:1.6;color:var(--ink-2)}
.art-nav a span{display:block;font-size:12px;color:#9a958c;margin-bottom:3px}
.art-nav a:hover{color:var(--ink)}
.art-nav .next{text-align:right;margin-left:auto}

/* 相关 */
.related{margin:56px 0 0}
.related h3{font-size:15px;color:var(--muted);font-weight:500;letter-spacing:.04em;margin-bottom:18px}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.rel-grid a{font-size:14px;line-height:1.6;color:var(--ink-2)}
.rel-grid img{width:100%;aspect-ratio:1200/630;object-fit:cover;border-radius:6px;margin-bottom:9px}
.rel-grid a:hover{color:var(--ink)}

/* 评论 */
.comments{max-width:740px;margin:56px auto 0;padding-top:32px;border-top:1px solid var(--line)}
.comments h3{font-size:16px;margin:0 0 20px}
.comments .cnt{color:#b9b4aa;font-weight:400;font-size:14px}
.comment-list{list-style:none;padding:0;margin:0 0 32px}
.comment-list li{padding:16px 0;border-bottom:1px solid var(--line)}
.c-head{display:flex;gap:12px;align-items:baseline;margin-bottom:6px}
.c-head b{font-size:14px}
.c-head time{font-size:12px;color:#b9b4aa}
.c-body{font-size:14.5px;color:var(--ink-2)}
.c-empty{color:var(--muted);font-size:14px}
.c-form{margin-top:8px}
.c-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:12px}
.c-form input,.c-form textarea{
  width:100%;padding:10px 13px;border:1px solid var(--line);border-radius:6px;
  font:14px/1.7 inherit;background:var(--paper);outline:none;resize:vertical;
}
.c-form input:focus,.c-form textarea:focus{border-color:#c9c5bc}
.c-form .hp{position:absolute;left:-9999px;height:0;overflow:hidden}
.c-actions{display:flex;align-items:center;gap:14px;margin-top:12px}
.c-actions button{
  padding:9px 22px;background:var(--ink);color:#fff;border:0;border-radius:6px;
  font:14px inherit;cursor:pointer;
}
.c-actions button:hover{opacity:.88}
.c-tip{font-size:12.5px;color:#b9b4aa}

/* 列表头 */
.list-head{margin-bottom:34px;padding-bottom:22px;border-bottom:1px solid var(--line)}
.list-head h1{font-size:28px;margin:0 0 6px}
.list-head p{color:var(--muted);font-size:14.5px;margin:0}
.list-count{font-size:12.5px!important;color:#b9b4aa!important;margin-top:6px!important}

/* 空状态 / 404 */
.empty-box{text-align:center;padding:80px 0;color:var(--muted)}
.btn-line{display:inline-block;margin-top:12px;padding:8px 20px;border:1px solid var(--ink);border-radius:6px;font-size:14px}
.btn-line:hover{background:var(--ink);color:#fff}
.notfound{text-align:center;padding:80px 0}
.notfound .code{font-size:80px;font-weight:700;color:#eeece7;margin:0;line-height:1;letter-spacing:-.04em}
.notfound h1{font-size:22px;margin:12px 0 8px}
.notfound p{color:var(--muted);font-size:14.5px}

/* ===== 页脚 ===== */
.site-foot{border-top:1px solid var(--line);background:var(--paper);padding:44px 0;margin-top:40px}
.foot-inner{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap}
.foot-name{font-weight:600;font-size:15px;margin:0 0 6px}
.foot-desc{color:var(--muted);font-size:13.5px;margin:0;max-width:380px}
.foot-right{text-align:right;font-size:13px;color:var(--muted)}
.foot-right p{margin:0 0 6px}
.foot-right a:hover{color:var(--ink)}
.foot-meta{display:flex;gap:14px;justify-content:flex-end;font-size:12.5px;color:#b9b4aa}

/* ===== 响应式 ===== */
@media (max-width:820px){
  .hero-link{grid-template-columns:1fr;gap:20px}
  .hero-body h2{font-size:24px}
  .art-head h1{font-size:26px}
  .art-body{font-size:16px}
  .rel-grid{grid-template-columns:1fr 1fr}
  .post-thumb{flex:0 0 104px}
  .post-thumb img{width:104px;height:55px}
  .search input{width:120px}
  .search input:focus{width:140px}
}
@media (max-width:560px){
  .head-inner{gap:16px;height:60px}
  .nav{display:none}
  .brand{font-size:17px}
  .search{flex:1;display:flex;justify-content:flex-end}
  .main{padding:28px 18px 60px}
  .wrap{padding:0 18px}
  .post-thumb{display:none}
  .post-main h3{font-size:17.5px}
  .rel-grid{grid-template-columns:1fr}
  .c-row{grid-template-columns:1fr}
  .foot-right{text-align:left}
  .foot-meta{justify-content:flex-start}
}