/*
Theme Name: 古纪札记
Theme URI: https://blog.gujitime.com
Author: 古纪
Description: 轻量博客主题，面向读书 / 电影 / 生活类内容。纯手写 CSS，无框架依赖，专注长文阅读体验。
Version: 1.2.0
Requires at least: 6.0
Requires PHP: 7.4
License: GPL-2.0-or-later
Text Domain: guji-notes
*/

/* ============ 基础 ============ */
:root{
  --ink:#1c1a17;
  --ink-2:#4a453d;
  --muted:#8b8478;
  --line:#e7e1d6;
  --paper:#fcfaf6;
  --card:#fffdfa;
  --red:#b2372c;
  --red-d:#8f2a21;
  --gold:#a67c52;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --serif:"Noto Serif SC","Songti SC","STSong","Source Han Serif SC",Georgia,"Times New Roman",serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .2s}
a:hover{color:var(--red)}
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;letter-spacing:-.2px;margin:0}
p{margin:0 0 1em}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:12px;background:#fff;padding:8px 14px;border-radius:8px;z-index:99}

/* ============ 头部 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(252,250,246,.94);
  backdrop-filter:saturate(160%) blur(12px);border-bottom:1px solid var(--line);
}
.header-in{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-seal{
  width:32px;height:32px;border-radius:7px;background:var(--red);color:#fff;
  display:grid;place-items:center;font-family:var(--serif);font-size:18px;line-height:1;
  padding-top:1px;letter-spacing:0;
}
.brand-text{display:flex;align-items:baseline;gap:9px}
.brand-name{font-family:var(--serif);font-size:21px;font-weight:700;letter-spacing:3px;color:var(--ink)}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:2px;white-space:nowrap}
.nav{display:flex;align-items:center;gap:30px}
.nav a{position:relative;font-size:15px;color:var(--ink-2);padding:4px 0;white-space:nowrap}
.nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-3px;height:2px;background:var(--red);
  transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav a:hover{color:var(--red)}
.nav a:hover::after,.nav a.is-active::after{transform:scaleX(1)}
.nav a.is-active{color:var(--red);font-weight:600}
.header-tools{display:flex;align-items:center;gap:6px;flex-shrink:0}
.icon-btn{
  width:36px;height:36px;border:0;background:transparent;border-radius:8px;cursor:pointer;
  display:grid;place-items:center;color:var(--ink-2);
}
.icon-btn:hover{background:#f1ece2;color:var(--red)}
.menu-btn{display:none}

/* 搜索抽屉 */
.search-bar{
  max-height:0;overflow:hidden;transition:max-height .3s ease;border-bottom:0 solid var(--line);
}
.search-bar.open{max-height:90px;border-bottom-width:1px}
.search-bar .wrap{padding-top:14px;padding-bottom:14px}
.search-form{display:flex;gap:10px}
.search-form input[type=search]{
  flex:1;height:44px;padding:0 14px;border:1px solid var(--line);border-radius:10px;
  background:#fff;font-size:15px;color:var(--ink);outline:none;font-family:var(--sans);
}
.search-form input[type=search]:focus{border-color:var(--red)}
.search-form button{
  height:44px;padding:0 22px;border:0;border-radius:10px;background:var(--red);color:#fff;
  font-size:15px;cursor:pointer;font-family:var(--sans);
}
.search-form button:hover{background:var(--red-d)}

/* ============ 首页 Hero ============ */
.hero{padding:56px 0 46px;border-bottom:1px solid var(--line)}
.hero-body{max-width:840px}
.hero-media{border-radius:16px;overflow:hidden;aspect-ratio:4/3;background:#efe9df;position:relative}
.hero-media img{width:100%;height:100%;object-fit:cover;transition:transform .8s ease}
.hero-media:hover img{transform:scale(1.03)}
.hero-body .kicker{display:inline-block;font-size:12px;letter-spacing:3px;color:var(--red);font-weight:600;margin-bottom:16px}
.hero-body h1{font-size:40px;line-height:1.34;margin-bottom:18px}
.hero-body h1 a{background-image:linear-gradient(var(--red),var(--red));background-size:0 1px;background-repeat:no-repeat;background-position:0 100%}
.hero-body p{font-size:16px;line-height:1.95;color:var(--ink-2);margin-bottom:22px}
.meta{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--muted);flex-wrap:wrap}
.meta span{display:inline-flex;align-items:center;gap:5px}
.meta .dot{width:3px;height:3px;border-radius:50%;background:#cfc7b8}

/* ============ 主体两栏 ============ */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:64px;padding:56px 0 72px}
.section-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:8px}
.section-head h2{font-size:16px;letter-spacing:3px;color:var(--ink);font-weight:600}
.section-head h2::before{content:"";display:inline-block;width:18px;height:2px;background:var(--red);vertical-align:middle;margin-right:10px;margin-top:-3px}
.section-head a{font-size:13px;color:var(--muted)}
.section-head a:hover{color:var(--red)}

.post-list{display:block}
.post-item{
  display:block;padding:28px 0;border-bottom:1px dashed var(--line);
}
.post-item:last-child{border-bottom:0}
.post-item .cat{font-size:12px;letter-spacing:2px;color:var(--red);font-weight:600}
.post-item h2{font-size:25px;line-height:1.5;margin:8px 0 12px}
.post-item h2 a:hover{color:var(--red)}
.post-item .excerpt{
  font-size:15px;line-height:1.85;color:var(--ink-2);margin:0 0 12px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.thumb{border-radius:12px;overflow:hidden;aspect-ratio:3/2;background:#efe9df;display:block}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.thumb:hover img{transform:scale(1.05)}
.thumb--none{
  display:grid;place-items:center;background:linear-gradient(140deg,#f2ece0,#e6dbc7);
  font-family:var(--serif);font-size:15px;color:#a2917a;letter-spacing:4px;
}

/* 分页 */
.pager{display:flex;align-items:center;justify-content:center;gap:8px;margin:44px 0 0}
.pager a,.pager span{
  min-width:38px;height:38px;padding:0 12px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:9px;font-size:14px;color:var(--ink-2);background:#fff;
}
.pager a:hover{border-color:var(--red);color:var(--red)}
.pager .current{background:var(--red);border-color:var(--red);color:#fff}

/* ============ 侧栏 ============ */
.sidebar{font-size:14px}
.widget{margin-bottom:40px}
.widget h3{
  font-family:var(--sans);font-size:12px;letter-spacing:3px;color:var(--muted);
  font-weight:600;margin:0 0 16px;padding-bottom:10px;border-bottom:1px solid var(--line);
}
.about-card{background:#f6f1e6;border-radius:14px;padding:20px 20px 18px}
.about-card p{font-size:14px;line-height:1.85;color:#5c5348;margin:0}
.about-card .sign{font-family:var(--serif);font-size:15px;color:var(--red);margin-top:10px;display:block}
.cat-list{list-style:none;padding:0;margin:0}
.cat-list li{display:flex;align-items:center;justify-content:space-between;padding:10px 0;border-bottom:1px dashed var(--line)}
.cat-list li:last-child{border-bottom:0}
.cat-list a{color:var(--ink-2)}
.cat-list a:hover{color:var(--red)}
.cat-list .count{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
.recent{list-style:none;padding:0;margin:0}
.recent li{padding:0 0 14px}
.recent a{font-size:14px;line-height:1.65;color:var(--ink-2);display:block}
.recent a:hover{color:var(--red)}
.recent time{display:block;font-size:12px;color:var(--muted);margin-top:4px;font-variant-numeric:tabular-nums}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tags a{
  font-size:12.5px;color:#6b6357;background:#f2ece0;border-radius:20px;padding:5px 12px;
}
.tags a:hover{background:var(--red);color:#fff}

/* ============ 文章页 ============ */
.article-head{max-width:732px;margin:0 auto;padding:56px 0 30px;text-align:center}
.article-head .cat{font-size:12px;letter-spacing:3px;color:var(--red);font-weight:600}
.article-head h1{font-size:42px;line-height:1.35;margin:16px 0 20px}
.article-head .meta{justify-content:center}
.post-cover{max-width:920px;margin:8px auto 46px;border-radius:16px;overflow:hidden;background:#efe9df}
.post-cover img{width:100%;display:block}
.entry{max-width:732px;margin:0 auto;font-family:var(--serif);font-size:17.5px;line-height:1.95;color:#2b2721}
.entry>*:first-child{margin-top:0}
.entry p{margin:0 0 1.5em}
.entry h2{font-size:25px;margin:2.1em 0 .85em;padding-left:14px;border-left:3px solid var(--red);line-height:1.5}
.entry h3{font-size:20px;margin:1.8em 0 .7em}
.entry h4{font-size:17px;margin:1.6em 0 .6em}
.entry ul,.entry ol{padding-left:1.4em;margin:0 0 1.5em}
.entry li{margin:.45em 0}
.entry a{color:var(--red-d);border-bottom:1px solid rgba(178,55,44,.3)}
.entry a:hover{border-bottom-color:var(--red-d)}
.entry img{border-radius:12px;margin:1.8em auto}
.entry blockquote{
  margin:1.8em 0;padding:18px 24px;background:#f7f2e8;border-left:3px solid var(--gold);
  border-radius:0 10px 10px 0;color:#5a5145;font-size:16.5px;
}
.entry blockquote p:last-child{margin-bottom:0}
.entry code{background:#f1ece1;padding:2px 6px;border-radius:5px;font-size:.9em;font-family:ui-monospace,Menlo,Consolas,monospace}
.entry pre{background:#241f1a;color:#e8e0d3;padding:18px 20px;border-radius:12px;overflow:auto;font-size:14px;line-height:1.7}
.entry pre code{background:none;padding:0;color:inherit}
.entry hr{border:0;border-top:1px solid var(--line);margin:2.4em auto}
.entry table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px}
.entry th,.entry td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.entry th{background:#f7f2e8;font-weight:600}
.entry figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:-1em;font-family:var(--sans)}

.article-foot{max-width:732px;margin:0 auto}
.article-tags{display:flex;flex-wrap:wrap;gap:8px;margin:44px 0 0}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:48px 0 0}
.post-nav a{
  border:1px solid var(--line);border-radius:12px;padding:16px 18px;background:#fff;display:block;
}
.post-nav a:hover{border-color:var(--red);color:inherit}
.post-nav small{display:block;font-size:12px;color:var(--muted);margin-bottom:6px;letter-spacing:1px}
.post-nav strong{font-family:var(--serif);font-size:16px;font-weight:700;line-height:1.5;display:block}
.post-nav .next{text-align:right}

.related{max-width:920px;margin:64px auto 0;padding-top:36px;border-top:1px solid var(--line)}
.related h2{font-size:15px;letter-spacing:3px;color:var(--muted);font-weight:600;margin-bottom:24px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-grid article{border-top:1px solid var(--line);padding-top:14px}
.rc-cat{display:inline-block;font-size:11.5px;letter-spacing:2px;color:var(--red);font-weight:600;margin-bottom:8px}
.related-grid h3{font-size:16px;line-height:1.55;font-weight:700}
.related-grid h3 a:hover{color:var(--red)}
.related-grid time{font-size:12px;color:var(--muted);display:block;margin-top:6px}

/* 评论 */
.comments{max-width:732px;margin:60px auto 0;padding-top:32px;border-top:1px solid var(--line);font-family:var(--sans)}
.comments h2,.comments h3{font-size:16px;letter-spacing:2px;margin-bottom:20px}
.comment-list{list-style:none;padding:0;margin:0}
.comment-list li{padding:16px 0;border-bottom:1px dashed var(--line)}
.comment-author{font-weight:600;font-size:14px}
.comment-meta{font-size:12px;color:var(--muted);margin-bottom:8px}
.comment-list .children{list-style:none;padding-left:22px;margin:8px 0 0}
.comment-form p{margin-bottom:14px}
.comment-form label{font-size:13px;color:var(--ink-2);display:block;margin-bottom:6px}
.comment-form input[type=text],.comment-form input[type=email],.comment-form input[type=url],.comment-form textarea{
  width:100%;border:1px solid var(--line);border-radius:10px;padding:10px 12px;font-size:14px;
  background:#fff;font-family:var(--sans);outline:none;
}
.comment-form input:focus,.comment-form textarea:focus{border-color:var(--red)}
.comment-form .submit{
  height:42px;padding:0 24px;border:0;border-radius:10px;background:var(--red);color:#fff;font-size:14px;cursor:pointer;
}
.comment-form .submit:hover{background:var(--red-d)}

/* ============ 归档/搜索/404 ============ */
.page-head{padding:56px 0 34px;border-bottom:1px solid var(--line)}
.page-head .kicker{font-size:12px;letter-spacing:3px;color:var(--red);font-weight:600}
.page-head h1{font-size:36px;line-height:1.4;margin:12px 0 10px}
.page-head p{color:var(--muted);font-size:14px;margin:0}
.archive-list{max-width:860px;margin:0 auto;padding:8px 0 40px}
.year-head{
  font-size:13px;letter-spacing:3px;color:var(--muted);margin:36px 0 6px;padding-bottom:8px;
  border-bottom:1px solid var(--line);font-weight:600;
}
.arc-item{display:flex;gap:18px;padding:12px 0;border-bottom:1px dashed var(--line);align-items:baseline}
.arc-item time{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;flex-shrink:0;width:74px}
.arc-item a{font-size:15.5px;line-height:1.6}
.arc-item .c{font-size:12px;color:var(--red);margin-left:auto;flex-shrink:0}
.empty{padding:80px 0;text-align:center;color:var(--muted)}
.empty h2{font-size:24px;color:var(--ink);margin-bottom:10px}
.btn{
  display:inline-flex;align-items:center;height:42px;padding:0 22px;border-radius:10px;
  background:var(--red);color:#fff;font-size:14px;
}
.btn:hover{background:var(--red-d);color:#fff}

/* ============ 页脚 ============ */
.site-footer{background:#1b1917;color:#a8a196;padding:52px 0 34px;margin-top:88px}
.footer-in{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap}
.footer-brand{max-width:320px}
.footer-brand .brand-name{color:#f4efe4;font-size:20px;letter-spacing:3px}
.footer-brand p{font-size:13.5px;line-height:1.85;margin:14px 0 0;color:#8f887d}
.footer-nav{display:flex;gap:34px;flex-wrap:wrap}
.footer-col h4{font-size:12px;letter-spacing:2px;color:#7d766b;font-weight:600;margin:0 0 14px}
.footer-col a{display:block;font-size:13.5px;color:#b7b0a4;padding:4px 0}
.footer-col a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid #2c2823;margin-top:40px;padding-top:22px;font-size:12.5px;color:#726c62;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
}

/* ============ 1.1 正文排列优化 ============ */
/* 首行缩进：仅“连续段落”缩进；段首（标题/图/列表/引用后的首段）不缩进，符合中文排版习惯 */
.entry > p + p{ text-indent:2em; }
/* 首字下沉：仅当首元素就是段落时才生效（首图为图则不触发）；排除"原刊时间"题注 */
.entry > p:first-child:not(.pub-date)::first-letter{
  float:left;font-family:var(--serif);font-weight:700;
  font-size:3.4em;line-height:.8;color:var(--red);
  margin:.04em .14em 0 0;
}
/* 有题注时, 首字下沉作用于题注后的第一个正文段落; 该段不缩进 */
.entry > p.pub-date + p::first-letter{
  float:left;font-family:var(--serif);font-weight:700;
  font-size:3.4em;line-height:.8;color:var(--red);
  margin:.04em .14em 0 0;
}
.entry > p.pub-date + p{ text-indent:0; }
/* 引用块：加引号装饰 + 留白 */
.entry blockquote{position:relative;font-style:normal;padding-left:34px}
.entry blockquote::before{
  content:"“";position:absolute;left:4px;top:-10px;font-family:var(--serif);
  font-size:46px;color:var(--gold);opacity:.5;line-height:1;
}
/* 列表：主题色自定义符号（无序圆点 / 有序数字） */
.entry ul{list-style:none;padding-left:0}
.entry ul > li{position:relative;padding-left:1.45em}
.entry ul > li::before{
  content:"";position:absolute;left:.25em;top:.72em;width:6px;height:6px;
  border-radius:50%;background:var(--red);transform:translateY(-50%);
}
.entry ol{counter-reset:gj;padding-left:0}
.entry ol > li{position:relative;padding-left:1.9em;counter-increment:gj}
.entry ol > li::before{
  content:counter(gj);position:absolute;left:0;top:0;color:var(--red);
  font-weight:600;font-family:var(--sans);font-size:.82em;
}
/* 图片对齐（WordPress alignleft / alignright / aligncenter） */
.entry .alignleft{float:left;margin:6px 26px 16px 0;max-width:46%}
.entry .alignright{float:right;margin:6px 0 16px 26px;max-width:46%}
.entry .aligncenter{margin-left:auto;margin-right:auto}
.entry .wp-caption{width:auto!important;max-width:100%}
.entry .wp-caption img{margin:0 auto}
.entry .wp-caption-text,.entry figcaption{
  font-size:13px;color:var(--muted);text-align:center;margin:.5em 0 1.6em;font-family:var(--sans);
}
/* 选中文字高亮 */
.entry ::selection,.article-head ::selection{background:rgba(178,55,44,.14);color:var(--red-d)}
/* 链接过渡更顺滑 */
.entry a{transition:color .2s,border-color .2s}

/* ============ 1.1 全站微优化 ============ */
html{scroll-behavior:smooth}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:2px solid var(--red);outline-offset:2px;border-radius:6px;
}
/* 文章流卡片：悬停时标题变色 */
.post-item h2 a{transition:color .2s}
.post-item:hover h2 a{color:var(--red)}
/* 文章页标题下方加一道居中金线分隔，增强“阅读页”仪式感 */
.article-head{position:relative}
.article-head h1{margin-bottom:18px}
.article-head::after{
  content:"";display:block;width:46px;height:2px;background:var(--gold);
  margin:0 auto;border-radius:2px;
}
/* 标签胶囊与正文标签统一 */
.article-tags .tags-item{
  display:inline-block;font-size:12.5px;color:#6b6357;background:#f2ece0;
  border-radius:20px;padding:5px 12px;transition:background .2s,color .2s;
}
.article-tags .tags-item:hover{background:var(--red);color:#fff}

/* 移动端：首字下沉与缩进适度收敛 */
@media (max-width:760px){
  .entry > p:first-child:not(.pub-date)::first-letter{font-size:2.8em}
  .entry > p.pub-date + p::first-letter{font-size:2.8em}
  .entry > p + p{text-indent:1.4em}
  .entry ul > li,.entry ol > li{padding-left:1.3em}
}
/* 平板宽度：导航项较多，收敛间距防止挤压换行 */
@media (max-width:900px){
  .nav{gap:16px}
  .nav a{font-size:14px}
  .brand-sub{display:none}
}

/* ============ 响应式 ============ */
@media (max-width:980px){
  .layout{grid-template-columns:1fr;gap:0;padding:44px 0 56px}
  .sidebar{margin-top:56px;padding-top:36px;border-top:1px solid var(--line);display:grid;grid-template-columns:1fr 1fr;gap:0 40px}
  .hero{grid-template-columns:1fr;gap:26px;padding:44px 0 40px}
  .hero-body h1{font-size:32px}
  .hero-media{aspect-ratio:16/10}
  .related-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .wrap{padding:0 18px}
  .nav{
    position:fixed;left:0;right:0;top:72px;background:#fffdfa;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:0;padding:8px 18px 16px;
    transform:translateY(-8px);opacity:0;pointer-events:none;transition:.22s ease;
  }
  .nav.open{transform:none;opacity:1;pointer-events:auto}
  .nav a{padding:13px 0;border-bottom:1px dashed var(--line);font-size:16px}
  .nav a::after{display:none}
  .menu-btn{display:grid}
  .brand-sub{display:none}
  .hero-body h1{font-size:27px}
  .post-item{grid-template-columns:1fr;gap:14px}
  .post-item .thumb{order:-1;aspect-ratio:16/9}
  .post-item h2{font-size:20px}
  .article-head{padding:40px 0 22px;text-align:left}
  .article-head h1{font-size:29px}
  .article-head .meta{justify-content:flex-start}
  .entry{font-size:17px;line-height:1.9}
  .entry h2{font-size:21px}
  .page-head h1{font-size:27px}
  .sidebar{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .post-nav .next{text-align:left}
  .related-grid{grid-template-columns:1fr}
  .footer-in{gap:30px}
  .site-footer{padding:40px 0 28px;margin-top:64px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}


/* ============ 文章正文排版（美化） ============ */
.entry{
  font-size:17px;
  line-height:1.95;
  color:var(--ink-2);
  letter-spacing:.2px;
  word-break:break-word;
}
.entry > p{
  margin:0 0 1.3em;
  text-indent:2em;            /* 首行缩进（中文传统） */
}
.entry > p:first-of-type{ text-indent:0; }   /* 首段不缩进更自然 */
.entry h2,.entry h3,.entry h4{
  margin:1.7em 0 .7em;
  font-family:var(--serif);
  font-weight:700;
  line-height:1.5;
  text-indent:0;
}
.entry blockquote{
  margin:1.5em 0;
  padding:.85em 1.3em;
  border-left:3px solid var(--red);
  background:#faf7f1;
  color:#6b6357;
  font-style:normal;
  border-radius:0 8px 8px 0;
}
.entry blockquote > p{ text-indent:0; margin:0 0 .6em; }
.entry blockquote > p:last-child{ margin-bottom:0; }
.entry img{ max-width:100%; height:auto; margin:1.4em 0; border-radius:10px; }
.entry a{ color:var(--red); text-decoration:underline; text-underline-offset:3px; text-decoration-thickness:1px; }
.entry a:hover{ color:var(--red-d); }
/* 古诗/韵文: 居中楷体（采集器对诗词类正文加 .verse 类时生效） */
.entry .verse{ text-align:center; font-family:var(--serif); text-indent:0 !important; letter-spacing:1px; }
.entry .verse > p{ text-indent:0; }