/*
Theme Name: LaoTao Minimal V2.2
Theme URI: https://laotao.cc
Description: 单栏极简、响应式、支持暗色模式的 Typecho 个人博客主题
Version: 2.2.0
Author: LaoTao
*/
:root{color-scheme:light;--bg:#fafaf8;--text:#252b29;--muted:#7f8983;--line:#e8eae6;--surface:#f1f3ef;--accent:#527b70;--code:#edf0eb}html[data-theme=dark]{color-scheme:dark;--bg:#151a18;--text:#e8eee9;--muted:#a0aaa4;--line:#323b35;--surface:#212923;--code:#252f29}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.85 -apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}a:hover{color:var(--accent)}button,input,textarea{font:inherit}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:3px}::selection{background:var(--accent);color:#fff}.wrap{max-width:810px;margin:auto;padding:0 35px}.skip-link{position:absolute;left:-9999px;top:5px}.skip-link:focus{left:20px;z-index:20;background:var(--bg);padding:10px}.reading-progress{height:3px;width:0;position:fixed;top:0;left:0;background:var(--accent);z-index:20}.site-header{display:flex;align-items:center;gap:22px;padding:36px 0;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:11px;font-size:18px;font-weight:750;letter-spacing:-.4px;white-space:nowrap}.brand-mark{width:35px;height:35px;border-radius:11px;display:grid;place-items:center;background:var(--text);color:var(--bg);font-family:Georgia,serif;font-size:19px}.top-nav{display:flex;align-items:center;gap:23px;margin-left:auto;color:var(--muted);font-size:13px}.header-actions{display:flex;gap:8px}.icon-button{border:0;background:none;color:var(--text);font-size:22px;width:31px;height:35px;line-height:1}.site-search{padding:18px 0;border-bottom:1px solid var(--line)}.site-search[hidden],.toc[hidden]{display:none}.site-search label{display:block;font-size:12px;color:var(--muted)}.search-row{display:flex;gap:10px}.search-row input{flex:1;min-width:0;background:var(--surface);color:var(--text);border:1px solid var(--line);padding:9px 12px;border-radius:7px}.search-row button{border:0;background:var(--text);color:var(--bg);padding:8px 17px;border-radius:7px}.intro{padding:98px 0 85px;border-bottom:1px solid var(--line)}.intro-top{display:flex;align-items:center;gap:12px}.avatar{width:44px;height:44px;border-radius:50%;object-fit:cover}.eyebrow,.section-head>span{font-size:11px;font-weight:750;letter-spacing:2px;color:var(--accent)}.intro h1{font-size:clamp(35px,6vw,51px);line-height:1.43;letter-spacing:-1.8px;font-weight:750;margin:20px 0}.intro h1 em{font-style:normal;color:var(--accent)}.intro-text{font-size:16px;color:var(--muted);max-width:560px;line-height:2.1}.intro-links{display:flex;gap:22px;font-size:13px;margin-top:23px;color:var(--accent);font-weight:650}.posts{padding:58px 0 78px}.section-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.section-head h2{font-size:20px;letter-spacing:-.4px}.post-item{padding:35px 0 40px;border-bottom:1px solid var(--line)}.post-meta{display:flex;gap:12px;align-items:center;flex-wrap:wrap;font-size:12px;color:var(--muted)}.meta-dot{color:var(--accent)}.post-item h3{font-size:clamp(21px,3.5vw,27px);line-height:1.5;letter-spacing:-.6px;margin:13px 0}.post-item p{font-size:14px;color:var(--muted);line-height:1.95;margin:10px 0 15px}.read-more,.text-button{font-size:13px;font-weight:650;color:var(--accent)}.text-button{border:0;background:none;padding:0}.empty-state{padding:40px 0;color:var(--muted)}.pagination{margin-top:35px}.page-nav{display:flex;gap:8px;flex-wrap:wrap}.page-nav a,.page-nav span{border:1px solid var(--line);border-radius:7px;padding:5px 13px;font-size:13px}.page-nav .current{background:var(--text);color:var(--bg)}.article{padding:78px 0 85px}.article h1{font-size:clamp(32px,5vw,44px);letter-spacing:-1px;line-height:1.4;margin:20px 0 25px}.article-toolbar{display:flex;justify-content:space-between;align-items:center;gap:20px;color:var(--muted);font-size:12px;padding-bottom:27px;border-bottom:1px solid var(--line);margin-bottom:38px}.entry-content{font-size:16px;line-height:2.05;overflow-wrap:anywhere}.entry-content h2,.entry-content h3,.entry-content h4{line-height:1.5;scroll-margin-top:30px;margin:2em 0 .7em}.entry-content h2{font-size:25px}.entry-content h3{font-size:20px}.entry-content a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}.entry-content img,.entry-content video{max-width:100%;height:auto;border-radius:10px}.entry-content figure{margin:25px 0}.entry-content figcaption{color:var(--muted);font-size:12px;text-align:center}.entry-content pre{position:relative;background:var(--code);padding:25px 20px;overflow-x:auto;border-radius:10px;font-size:13px;line-height:1.75}.entry-content :not(pre)>code{background:var(--code);padding:3px 6px;border-radius:4px;font-size:.88em}.code-copy{position:absolute;top:7px;right:9px;border:1px solid var(--line);border-radius:5px;background:var(--bg);color:var(--muted);padding:2px 8px;font-size:11px}.entry-content blockquote{border-left:3px solid var(--accent);margin:26px 0;padding:4px 20px;color:var(--muted);background:var(--surface)}.entry-content table{display:block;max-width:100%;overflow-x:auto;border-collapse:collapse}.entry-content td,.entry-content th{border:1px solid var(--line);padding:8px 13px}.entry-content hr{border:0;border-top:1px solid var(--line);margin:35px 0}.toc{border:1px solid var(--line);background:var(--surface);border-radius:11px;padding:18px 23px;margin-bottom:36px}.toc-title{font-size:13px;font-weight:700}.toc ol{padding-left:20px;margin:8px 0 0;font-size:13px;color:var(--muted)}.toc li{margin:3px 0}.toc-sub{margin-left:15px!important}.tags{color:var(--muted);font-size:13px;margin:45px 0}.post-neighbors{border-top:1px solid var(--line);padding:27px 0;display:flex;justify-content:space-between;gap:20px;font-size:13px}.post-neighbors>div{max-width:48%}.comments{border-top:1px solid var(--line);padding-top:35px;margin-top:35px}.comments h2{font-size:21px}.comments h3{font-size:16px}.comments input,.comments textarea{display:block;width:100%;background:var(--bg);border:1px solid var(--line);border-radius:7px;padding:11px 13px;margin:10px 0;color:var(--text);font-size:14px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.comments button{background:var(--text);color:var(--bg);border:0;border-radius:7px;padding:10px 24px}.comment-list{padding-left:24px}.comment-list li{padding:10px 0}.not-found{padding:110px 0 160px}.not-found h1{font-size:42px}.not-found p{color:var(--muted)}.site-footer{display:flex;justify-content:space-between;gap:30px;border-top:1px solid var(--line);padding:33px 0 50px;font-size:12px;color:var(--muted)}.site-footer strong{color:var(--text);font-size:14px}.site-footer p{margin:3px 0}.footer-right{text-align:right;display:flex;flex-direction:column;gap:3px}#back-to-top{position:fixed;right:25px;bottom:25px;border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:50%;width:39px;height:39px;opacity:0;pointer-events:none;transition:opacity .2s}#back-to-top.visible{opacity:1;pointer-events:auto}@media(max-width:620px){.wrap{padding:0 22px}.site-header{padding:22px 0;flex-wrap:wrap;gap:12px}.brand{font-size:17px}.top-nav{order:3;width:100%;margin-left:0;gap:20px;overflow-x:auto;white-space:nowrap;padding-top:7px}.header-actions{margin-left:auto}.intro{padding:68px 0 62px}.posts{padding:36px 0 55px}.post-item{padding:29px 0 32px}.article{padding:49px 0}.article-toolbar{align-items:flex-start}.form-grid{grid-template-columns:1fr}.site-footer{flex-direction:column;gap:15px}.footer-right{text-align:left}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* V2.1 refined reading layout */
:root{--bg:#fbfbfa;--text:#222a27;--muted:#727e78;--line:#e7ebe7;--surface:#f2f5f2}
html[data-theme=dark]{--bg:#161b19;--text:#edf2ee;--muted:#a7b2ab;--line:#343e38;--surface:#222b25}
.wrap{max-width:850px;padding-inline:38px}.site-header{padding:25px 0}.brand{font-size:17px}.top-nav{font-size:14px;gap:25px}.intro{padding:66px 0 57px}.intro h1{font-size:clamp(36px,5.6vw,48px);line-height:1.36;margin:13px 0 16px}.intro-text{font-size:16px;line-height:1.9;margin:0}.intro-links{margin-top:17px}.posts{padding:38px 0 58px}.section-head{margin-bottom:5px}.section-head h2{font-size:19px}.post-item{padding:28px 0 30px}.post-item h3{font-size:clamp(21px,3.3vw,25px);line-height:1.45;margin:11px 0 9px}.post-item p{font-size:15px;line-height:1.9;margin:8px 0 11px}.post-meta{font-size:13px;gap:9px}.pagination{margin-top:28px}.site-footer{padding:27px 0 36px}.article{padding:60px 0 72px}.entry-content{font-size:17px;line-height:2}.entry-content p{margin:1.1em 0}.entry-content ul,.entry-content ol{padding-left:1.5em}.entry-content img{display:block;margin:1.4em auto}.entry-content a{overflow-wrap:anywhere}
@media(max-width:620px){.wrap{padding-inline:22px}.site-header{padding:19px 0}.intro{padding:48px 0 44px}.intro h1{font-size:clamp(32px,8vw,40px)}.posts{padding:30px 0 45px}.post-item{padding:24px 0 27px}.post-item p{font-size:14px}.article{padding:42px 0 55px}.entry-content{font-size:16px}}

/* V2.2 archive and category templates */
.directory{padding:57px 0 80px}.directory h1{font-size:clamp(30px,5vw,40px);margin:8px 0}.directory-lead{color:var(--muted);margin:0 0 36px}.archive-year{font-size:24px;margin:42px 0 15px}.archive-month{font-size:14px;color:var(--accent);margin:25px 0 7px}.archive-list{list-style:none;padding:0;margin:0}.archive-list li{display:flex;align-items:baseline;gap:18px;border-bottom:1px solid var(--line);padding:13px 0}.archive-list time{flex:0 0 54px;color:var(--muted);font-size:12px}.archive-list a{font-weight:600;line-height:1.5}.category-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.category-tile{display:flex;align-items:center;justify-content:space-between;gap:14px;border:1px solid var(--line);padding:18px 20px;border-radius:10px;transition:border-color .2s,transform .2s}.category-tile:hover{border-color:var(--accent);transform:translateY(-2px)}.category-tile strong{font-size:16px}.category-tile small{color:var(--muted);white-space:nowrap}.directory-note{font-size:12px;color:var(--muted);margin-top:25px}@media(max-width:620px){.directory{padding:39px 0 55px}.category-list{grid-template-columns:1fr}.archive-list li{gap:12px}.top-nav{gap:17px}}

.posts{padding-top:48px}
@media(max-width:620px){.posts{padding-top:30px}}

/* V2.2 category-driven navigation */
.site-header{gap:16px}.top-nav{min-width:0;overflow-x:auto;scrollbar-width:thin;white-space:nowrap;flex-wrap:nowrap}.top-nav a{flex-shrink:0}.header-actions{flex-shrink:0}
@media(max-width:620px){.site-header{flex-wrap:wrap}.top-nav{order:3;width:100%;padding:4px 0 7px}.header-actions{margin-left:auto}}