:root{
    --blue:#2d89ef;          /* w3-metro-blue 时尚蓝 */
    --blue-dark:#1e6bc4;
    --blue-light:#4a9af5;
    --bg:#f0f4f9;
    --card:#ffffff;
    --text:#1a1a2e;
    --text-2:#6b7280;
    --line:#e2e8f0;
    --line-strong:#cbd5e1;
    --radius:12px;
    --radius-sm:8px;
    --shadow-card:
        0 1px 3px rgba(30,50,90,.04),
        0 4px 12px rgba(30,50,90,.06);
    --shadow-hover:
        0 4px 8px rgba(30,50,90,.06),
        0 12px 28px rgba(30,50,90,.12);
    --shadow-inset:
        inset 0 2px 4px rgba(30,50,90,.06);
}

/* ========== 纯 CSS 暗色主题 ========== */
@media (prefers-color-scheme: dark){
    html:not([data-theme="light"]):not(:has(#themeToggle:checked)){
        --bg:#0f1216;
        --card:#1a1f26;
        --text:#e4eaf1;
        --text-2:#8b95a5;
        --line:#2a313c;
        --line-strong:#3a4452;
        --shadow-card:
            0 1px 3px rgba(0,0,0,.35),
            0 4px 16px rgba(0,0,0,.25);
        --shadow-hover:
            0 4px 12px rgba(0,0,0,.4),
            0 12px 32px rgba(0,0,0,.35);
        --shadow-inset:
            inset 0 2px 4px rgba(0,0,0,.3);
    }
}
/* 强制暗色 (toggle 或 data-theme) */
html:has(#themeToggle:checked),
html[data-theme="dark"]{
    --bg:#0f1216;
    --card:#1a1f26;
    --text:#e4eaf1;
    --text-2:#8b95a5;
    --line:#2a313c;
    --line-strong:#3a4452;
    --shadow-card:
        0 1px 3px rgba(0,0,0,.35),
        0 4px 16px rgba(0,0,0,.25);
    --shadow-hover:
        0 4px 12px rgba(0,0,0,.4),
        0 12px 32px rgba(0,0,0,.35);
    --shadow-inset:
        inset 0 2px 4px rgba(0,0,0,.3);
}
/* 强制亮色覆盖系统暗色 */
html[data-theme="light"]{
    --bg:#f0f4f9;
    --card:#ffffff;
    --text:#1a1a2e;
    --text-2:#6b7280;
    --line:#e2e8f0;
    --line-strong:#cbd5e1;
    --shadow-card:
        0 1px 3px rgba(30,50,90,.04),
        0 4px 12px rgba(30,50,90,.06);
    --shadow-hover:
        0 4px 8px rgba(30,50,90,.06),
        0 12px 28px rgba(30,50,90,.12);
    --shadow-inset:
        inset 0 2px 4px rgba(30,50,90,.06);
}

*{margin:0;padding:0;box-sizing:border-box}

html{scroll-behavior:smooth}

body{

    font-family:"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;

    background:var(--bg);

    color:var(--text);

    font-size:15px;

    line-height:1.75;

    transition:background .3s,color .3s,border-color .3s;

}

a{color:inherit;text-decoration:none;transition:color .2s,background .2s,box-shadow .2s,transform .2s}

img{max-width:100%;display:block}

.muted{color:var(--text-2);font-size:13px}

svg{width:20px;height:20px;flex:none}

.layout{

    max-width:1320px;margin:0 auto;padding:28px 24px;

    display:grid;grid-template-columns:260px minmax(0,1fr) 300px;gap:28px;

    align-items:start;

}

/* ========== 侧边栏卡片 ========== */

.sider{

    background:var(--card);

    box-shadow:var(--shadow-card);

    border:1px solid var(--line);

    padding:30px 22px;position:sticky;top:28px;

    display:flex;flex-direction:column;gap:26px;

    max-height:calc(100vh - 56px);overflow:auto;

    transition:background .3s,box-shadow .3s,border-color .3s;

}

.sider::-webkit-scrollbar {width:6px;}

.sider::-webkit-scrollbar-track {background:transparent;}

.sider::-webkit-scrollbar-thumb {background:var(--line-strong);}

.sider::-webkit-scrollbar-thumb:hover {background:var(--blue);}

.logo{

    font-size:32px;color:var(--blue);letter-spacing:1px;line-height:1.1;

    display:inline-block;font-weight:300;

}

.logo:hover{color:var(--blue-dark)}

/* ========== 主导航 ========== */

.main-nav{display:flex;flex-direction:column;gap:4px}

.main-nav a{
    display:flex;align-items:center;gap:12px;
    padding:12px 16px;
    color:var(--text);
    border:1px solid transparent;
    border-radius:var(--radius-sm);
    transition:background .2s,color .2s,box-shadow .2s,border-color .2s,transform .15s;
}

.main-nav a svg{color:var(--text-2);transition:color .2s}

.main-nav a:hover{

    background:var(--card);

    border-color:var(--line);

    box-shadow:0 1px 2px rgba(30,50,90,.06), inset 0 1px 0 rgba(255,255,255,.06);

    color:var(--blue-dark);

}

.main-nav a:hover svg{color:var(--blue)}

.main-nav a.active{

    background:linear-gradient(180deg,var(--blue-light),var(--blue));

    border-color:var(--blue-dark);

    color:#fff;

    box-shadow:0 2px 6px rgba(45,137,239,.35), inset 0 1px 0 rgba(255,255,255,.15);

}

.main-nav a.active svg{color:#fff}

/* ========== 侧栏分区 ========== */

.side-block{display:flex;flex-direction:column;gap:14px}

.side-title{

    font-size:14px;font-weight:600;color:var(--text-2);

    padding-bottom:10px;border-bottom:1px solid var(--line);

    position:relative;

}

.side-title::after{

    content:'';position:absolute;left:0;bottom:-1px;width:38px;height:3px;

    background:var(--blue);

    box-shadow:0 1px 3px rgba(45,137,239,.4);

}

/* ========== 专题推荐 ========== */

.topic-list{display:flex;flex-direction:column;gap:4px}

.topic-item{
    display:flex;align-items:center;gap:12px;
    padding:12px 16px;
    color:var(--text);
    border:1px solid transparent;
    border-radius:var(--radius-sm);
    background:transparent;
    transition:background .2s,color .2s,box-shadow .2s,border-color .2s;
}

.topic-item svg{color:var(--text-2);transition:color .2s;width:20px;height:20px;flex:none;}

.topic-item:hover{

    background:var(--card);

    border-color:var(--line);

    box-shadow:0 1px 2px rgba(30,50,90,.06), inset 0 1px 0 rgba(255,255,255,.06);

    color:var(--blue-dark);

}

.topic-item:hover svg{color:var(--blue)}

.topic-item.active{

    background:linear-gradient(180deg,var(--blue-light),var(--blue));

    border-color:var(--blue-dark);

    color:#fff;

    box-shadow:0 2px 6px rgba(45,137,239,.35), inset 0 1px 0 rgba(255,255,255,.15);

}

.topic-item.active svg{color:#fff}

/* ========== 友情链接 ========== */

.link-list{display:flex;flex-wrap:wrap;gap:8px;}

.link-item{
    display:inline-flex;align-items:center;gap:6px;
    padding:6px 14px;
    background:var(--card);
    color:var(--text);font-size:13px;
    border:1px solid var(--line);
    border-radius:999px;
    box-shadow:0 1px 3px rgba(30,50,90,.04);
    transition:all .2s;
}

.link-item .link-icon{font-size:8px;line-height:1;color:var(--blue)}

.link-item:hover{

    background:linear-gradient(180deg,var(--blue-light),var(--blue));

    color:#fff;border-color:var(--blue-dark);

    box-shadow:0 3px 8px rgba(45,137,239,.3), inset 0 1px 0 rgba(255,255,255,.15);

}

.link-item:hover .link-icon{color:#fff}

.sider-footer{font-size:12px;color:var(--text-2);border-top:1px solid var(--line);padding-top:16px;margin-top:auto}

/* ===== 左侧栏底部工具栏（切换主题 + 搜索） ===== */

.sider-toolbar{

    display:flex;

    justify-content:flex-start;

    gap:8px;

    padding-top:16px;

    border-top:1px solid var(--line);

    position:relative;

}

.sider-toolbar .search-panel{

    position:static;

    right:auto;

    left:auto;

    top:auto;

    width:100%;

    box-shadow:none;

    border:1px solid var(--line);

    margin-top:8px;

    padding:12px 14px;

}

/* ===== 主内容区 ===== */

.main{min-width:0;display:flex;flex-direction:column;gap:14px}

/* ========== 顶栏按钮 ========== */

.topbar{display:flex;justify-content:flex-end;gap:8px;align-items:center;position:relative}

.topbar-btn{
    width:42px;height:42px;border:1px solid var(--line);
    background:var(--card);
    border-radius:var(--radius-sm);
    display:flex;align-items:center;justify-content:center;
    color:var(--text-2);cursor:pointer;
    box-shadow:0 1px 3px rgba(30,50,90,.04);
    transition:all .2s;
    flex-shrink:0;
}

.topbar-btn:hover{

    background:var(--card);

    color:var(--blue);

    box-shadow:0 3px 8px rgba(45,137,239,.18), inset 0 1px 0 rgba(255,255,255,.06);

}

.topbar-btn svg{width:21px;height:21px}

/* ========== 纯 CSS 主题切换 ========== */

.theme-switch{cursor:pointer}
.theme-switch .icon-sun{display:block}
.theme-switch .icon-moon{display:none}
html:has(#themeToggle:checked) .theme-switch .icon-sun,
html[data-theme="dark"] .theme-switch .icon-sun{display:none}
html:has(#themeToggle:checked) .theme-switch .icon-moon,
html[data-theme="dark"] .theme-switch .icon-moon{display:block}
html[data-theme="light"] .theme-switch .icon-sun{display:block}
html[data-theme="light"] .theme-switch .icon-moon{display:none}

/* ========== 纯 CSS 搜索面板 ========== */

.search-details{position:relative}

.search-details summary{list-style:none;cursor:pointer}

.search-details summary::-webkit-details-marker{display:none}

.search-details summary::marker{display:none;content:""}

.search-panel{

    display:none;

    position:absolute;right:0;top:52px;z-index:20;

    width:min(440px,90vw);

    background:var(--card);
    border-radius:var(--radius);

    border:1px solid var(--line);

    box-shadow:var(--shadow-card);

    padding:16px 20px;

}

.search-details[open] .search-panel{display:block}

.search-panel form{display:flex;align-items:center;gap:10px}

.search-panel svg{width:18px;height:18px;color:var(--text-2)}

.search-panel input{

    flex:1;border:none;outline:none;background:transparent;color:var(--text);

    font-size:15px;padding:8px 0;

}

.search-panel input::placeholder{color:var(--text-2)}

/* ========== 分类标签 ========== */

.cat-tabs{display:flex;gap:6px;flex-wrap:wrap}

.cat-tabs a{
    padding:8px 20px;font-size:14px;
    color:var(--text-2);
    background:var(--card);
    border:1px solid var(--line);
    border-radius:999px;
    box-shadow:var(--shadow-card);
    transition:all .2s;
}

.cat-tabs a:hover{
    color:var(--blue);
    border-color:var(--blue);
    box-shadow:0 4px 12px rgba(45,137,239,.15);
}

.cat-tabs a.active{
    background:linear-gradient(180deg,var(--blue-light),var(--blue));
    border-color:var(--blue-dark);
    color:#fff;
    box-shadow:0 4px 14px rgba(45,137,239,.35);
}

/* ===== 文章卡片列表 ===== */

.post-list{display:flex;flex-direction:column;gap:14px}

.post-card{
    background:var(--card);
    box-shadow:var(--shadow-card);
    border:1px solid var(--line);
    border-radius:var(--radius);
    padding:20px;display:flex;gap:20px;align-items:stretch;
    transition:transform .25s,box-shadow .25s,background .25s,border-color .25s;
    overflow:hidden;
}

.post-card:hover{

    transform:translateY(-2px);

    box-shadow:var(--shadow-hover);

    border-color:var(--line-strong);

}

.post-thumb{
    position:relative;width:180px;min-width:180px;height:154px;
    overflow:hidden;
    border-radius:var(--radius-sm);
    box-shadow:inset 0 0 0 1px rgba(0,0,0,.05);
}

.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}

.post-card:hover .post-thumb img{transform:scale(1.06)}

.sticky-badge{
    position:absolute;top:10px;left:10px;
    background:linear-gradient(180deg,var(--blue-light),var(--blue));
    color:#fff;
    font-size:11px;padding:4px 12px;letter-spacing:1px;z-index:1;
    border-radius:999px;
    box-shadow:0 2px 8px rgba(45,137,239,.4);
}

.post-body{flex:1;min-width:0;display:flex;flex-direction:column}

.post-title{font-size:18.5px;font-weight:600;line-height:1.5;margin-bottom:8px}

.post-title a:hover{color:var(--blue-dark)}

.post-meta{display:flex;gap:14px;font-size:13px;color:var(--text-2);margin-bottom:10px}

.post-author{color:var(--blue-dark);font-weight:500}

.post-excerpt{

    font-size:14px;color:var(--text-2);line-height:1.7;

    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;

    margin-bottom:14px;

}

.post-foot{margin-top:auto;display:flex;justify-content:space-between;align-items:center}

.post-nums{display:flex;gap:18px;color:var(--text-2);font-size:13px}

.post-nums span{display:flex;align-items:center;gap:5px}

.post-nums svg{width:16px;height:16px}

.post-cat{
    background:var(--card);
    color:var(--blue);
    font-size:13px;padding:5px 14px;
    border:1px solid var(--line);
    border-radius:999px;
    box-shadow:0 1px 3px rgba(30,50,90,.04);
    transition:all .2s;
}

.post-cat:hover{

    background:linear-gradient(180deg,var(--blue-light),var(--blue));

    color:#fff;border-color:var(--blue-dark);

    box-shadow:0 3px 8px rgba(45,137,239,.3), inset 0 1px 0 rgba(255,255,255,.15);

}

/* ===== 分页 ===== */

.pagination{margin-top:4px}

.page-nav{display:flex;justify-content:center;gap:6px;flex-wrap:wrap}
.page-nav span a, .page-nav span span{
    display:inline-flex;align-items:center;justify-content:center;
    min-width:36px;height:36px;padding:0 12px;
    border:1px solid var(--line);
    border-radius:var(--radius-sm);
    background:var(--card);
    color:var(--text-2);
    transition:all .2s;
}
.page-nav span a:hover{
    color:var(--blue);border-color:var(--blue);
}
.page-nav .current span{
    background:linear-gradient(180deg,var(--blue-light),var(--blue));
    color:#fff;border-color:var(--blue-dark);
}

.page-nav span{

    min-width:40px;height:40px;padding:0 12px;

    background:var(--card);

    border:1px solid var(--line);

    display:inline-flex;align-items:center;justify-content:center;

    font-size:14px;color:var(--text-2);

    box-shadow:0 1px 2px rgba(30,50,90,.06), inset 0 1px 0 rgba(255,255,255,.06);

    transition:all .2s;

}

.page-nav span.current{

    background:linear-gradient(180deg,var(--blue-light),var(--blue));

    border-color:var(--blue-dark);

    color:#fff;

    box-shadow:0 2px 6px rgba(45,137,239,.35), inset 0 1px 0 rgba(255,255,255,.15);

}

.page-nav a:hover span{

    color:var(--blue-dark);

    box-shadow:0 3px 8px rgba(45,137,239,.18), inset 0 1px 0 rgba(255,255,255,.06);

}

/* ========== 归档头 ========== */

.archive-head{

    background:var(--card);

    box-shadow:var(--shadow-card);

    border:1px solid var(--line);

    padding:28px 30px;display:flex;align-items:baseline;gap:16px;flex-wrap:wrap;

}

.archive-head h1{font-size:22px}

.archive-count{color:var(--text-2);font-size:13px}

/* ========== 单篇文章 ========== */

.single-post{
    background:var(--card);

    box-shadow:var(--shadow-card);

    border:1px solid var(--line);
    border-radius:var(--radius);
    padding:32px 36px;

    transition:background .3s,box-shadow .3s,border-color .3s;

}

.single-title{

    font-size:27px;font-weight:600;line-height:1.5;margin-bottom:14px;

}

.single-meta{

    display:flex;gap:20px;flex-wrap:wrap;font-size:13px;color:var(--text-2);

    padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:26px;

}

.single-cover{

    width:100%;max-height:400px;object-fit:cover;

    margin-bottom:26px;

    box-shadow:0 4px 14px rgba(30,50,90,.12);

}

.single-content{font-size:15.5px;line-height:2;color:var(--text)}

.single-content p{margin-bottom:1.1em}

.single-content h1,.single-content h2,.single-content h3{margin:1.4em 0 .7em;line-height:1.4}

.single-content h2{font-size:21px;padding-left:14px;border-left:4px solid var(--blue)}

.single-content h3{font-size:18px}

.single-content img{margin:1em auto;box-shadow:0 4px 14px rgba(30,50,90,.12)}

.single-content blockquote{

    margin:1.2em 0;padding:16px 20px;

    background:var(--bg);

    border-left:4px solid var(--blue);

    color:var(--text-2);

    box-shadow:inset 0 1px 0 rgba(255,255,255,.06);

}

.single-content a{color:var(--blue-dark);border-bottom:1px dashed var(--blue)}

.single-content ul,.single-content ol{padding-left:1.6em;margin-bottom:1.1em}

.single-content table{border-collapse:collapse;width:100%;margin:1.2em 0;overflow:hidden}

.single-content th,.single-content td{border:1px solid var(--line);padding:10px 16px;font-size:14px}

.single-content th{background:var(--bg);border-radius:var(--radius-sm) var(--radius-sm) 0 0}

.single-tags{margin-top:28px;display:flex;gap:8px;flex-wrap:wrap}

.single-tags a{
    font-size:13px;padding:6px 16px;
    background:var(--card);
    color:var(--blue);
    border:1px solid var(--line);
    border-radius:999px;
    box-shadow:var(--shadow-card);
    transition:all .2s;
}

.single-tags a:hover{
    background:linear-gradient(180deg,var(--blue-light),var(--blue));
    color:#fff;border-color:var(--blue-dark);
    box-shadow:0 4px 12px rgba(45,137,239,.3);
    transform:translateY(-1px);
}

.post-nav{

    display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;

    margin-top:28px;padding-top:20px;border-top:1px solid var(--line);font-size:14px;

}

.post-nav-prev,.post-nav-next{max-width:48%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.post-nav a{color:var(--text-2)}

.post-nav a:hover{color:var(--blue-dark)}

/* ===== 评论区 ===== */

.comments-area{

    background:var(--card);

    box-shadow:var(--shadow-card);

    border:1px solid var(--line);

    padding:30px 32px;margin-top:14px;

}

.comments-title{font-size:18px;margin-bottom:20px}

.comment-list{list-style:none;padding:0}

.comment-list li{margin:0}

.comment-body{

    padding:16px 0;border-bottom:1px solid var(--line);

}

.comment-children .comment-body{padding-left:24px}

.comment-author{display:flex;align-items:center;gap:10px;font-size:14px}

.comment-author .avatar{
    width:38px;height:38px;

    box-shadow:0 2px 6px rgba(30,50,90,.15), inset 0 0 0 1px rgba(255,255,255,.5);

    border-radius:50%;
}

.comment-author cite{font-style:normal;font-weight:600}

.comment-author .says{display:none}

.comment-meta{font-size:12px;color:var(--text-2);margin:6px 0 8px 48px}

.comment-content,.comment-content p{margin-left:48px;font-size:14.5px;color:var(--text)}

.comment-reply{margin:8px 0 0 48px;font-size:13px}

.comment-reply a{color:var(--blue-dark)}

.comment-parent>.comment-children{margin-left:0}

.cancel-comment-reply{margin-bottom:14px;font-size:13px}

.cancel-comment-reply a{color:var(--text-2)}

.respond{margin-top:22px}

.respond .logged-in{font-size:14px;color:var(--text-2);margin-bottom:14px}

.respond-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px;margin-bottom:10px}

.respond input,.respond textarea{
    width:100%;border:1px solid var(--line);
    border-radius:var(--radius-sm);
    background:var(--card);

    padding:12px 16px;font-size:14px;color:var(--text);outline:none;

    box-shadow:var(--shadow-inset);

    transition:border .2s,box-shadow .2s;

    font-family:inherit;resize:vertical;

}

.respond input:focus,.respond textarea:focus{

    border-color:var(--blue);

    box-shadow:0 0 0 3px rgba(45,137,239,.15), inset 0 1px 3px rgba(30,50,90,.08);

}

.respond textarea{min-height:110px}

.submit-btn{
    margin-top:14px;
    background:linear-gradient(180deg,var(--blue-light),var(--blue));
    color:#fff;border:1px solid var(--blue-dark);
    border-radius:var(--radius-sm);
    font-size:14.5px;
    padding:11px 38px;cursor:pointer;letter-spacing:2px;
    box-shadow:0 3px 10px rgba(45,137,239,.35);
    transition:all .2s;
}

.submit-btn:hover{

    background:linear-gradient(180deg,#2d89ef,#1e6bc4);

    box-shadow:0 5px 14px rgba(45,137,239,.45), inset 0 1px 0 rgba(255,255,255,.25);

}

.submit-btn:active{

    transform:translateY(1px);

    box-shadow:0 1px 3px rgba(45,137,239,.3), inset 0 2px 4px rgba(0,0,0,.15);

}

.no-comment{color:var(--text-2)}

/* ===== 右侧栏 ===== */

/* ========== 右侧顶部工具栏（暗黑 + 搜索） ========== */
.right-toolbar{
    display:flex;
    align-items:center;
    gap:10px;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius);
    box-shadow:var(--shadow-card);
    padding:12px 14px;
    transition:background .3s,box-shadow .3s,border-color .3s;
}
.right-toolbar .topbar-btn{
    width:40px;height:40px;
}
.right-search{
    flex:1;
    display:flex;
    align-items:center;
    gap:10px;
    background:var(--bg);
    border:1px solid var(--line);
    border-radius:var(--radius-sm);
    padding:0 14px;
    height:40px;
    transition:border-color .2s,box-shadow .2s;
}
.right-search:focus-within{
    border-color:var(--blue);
    box-shadow:0 0 0 3px rgba(45,137,239,.15);
}
.right-search svg{
    width:18px;height:18px;
    color:var(--text-2);
    flex-shrink:0;
}
.right-search input{
    flex:1;
    border:none;
    outline:none;
    background:transparent;
    color:var(--text);
    font-size:14px;
    font-family:inherit;
    min-width:0;
}
.right-search input::placeholder{
    color:var(--text-2);
}

/* 暗黑模式适配右侧工具栏 */
html:has(#themeToggle:checked) .right-toolbar,
html[data-theme="dark"] .right-toolbar{
    background:var(--card);
}
html:has(#themeToggle:checked) .right-search,
html[data-theme="dark"] .right-search{
    background:var(--bg);
    border-color:var(--line);
}
html:has(#themeToggle:checked) .right-toolbar .topbar-btn,
html[data-theme="dark"] .right-toolbar .topbar-btn{
    background:var(--bg);
}

.widgetbar{display:flex;flex-direction:column;gap:14px;position:sticky;top:24px}

.widget{
    background:var(--card);

    box-shadow:var(--shadow-card);

    border:1px solid var(--line);
    border-radius:var(--radius);

    padding:24px;

    transition:background .3s,box-shadow .3s,border-color .3s;

}

.widget-title{

    font-size:15px;font-weight:600;margin-bottom:18px;position:relative;padding-bottom:11px;

}

.widget-title::after{

    content:'';position:absolute;left:0;bottom:0;width:38px;height:3px;

    background:var(--blue);

    box-shadow:0 1px 3px rgba(45,137,239,.4);

}

.hot-list{display:flex;flex-direction:column;gap:16px}

.hot-item{display:flex;gap:14px;align-items:center}

.hot-item img{
    width:62px;height:48px;min-width:62px;object-fit:cover;

    box-shadow:0 2px 6px rgba(30,50,90,.12);

    border-radius:var(--radius-sm);
}

.hot-info{min-width:0}

.hot-title{

    font-size:13.5px;line-height:1.5;color:var(--text);

    display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;

    transition:color .2s;

}

.hot-item:hover .hot-title{color:var(--blue-dark)}

.hot-views{font-size:12px;color:var(--text-2);margin-top:3px}

/* ========== 最新评论 ========== */

.comment-list-mini{display:flex;flex-direction:column;gap:16px}

.mini-comment{display:flex;align-items:flex-start;gap:12px;}

.mini-comment .avatar{
    width:42px;height:42px;min-width:42px;

    object-fit:cover;display:block;flex:none;margin-top:2px;

    box-shadow:0 2px 6px rgba(30,50,90,.15), inset 0 0 0 1px rgba(255,255,255,.5);

    border-radius:50%;
}

.mini-comment-body{flex:1;min-width:0;display:flex;flex-direction:column;gap:3px}

.mini-comment-head{

    display:flex;justify-content:space-between;align-items:center;gap:8px;

    font-size:12.5px;line-height:1.4;

}

.mini-comment-head b{font-weight:600;color:var(--text)}

.mini-comment-head span{color:var(--text-2);font-size:11.5px;white-space:nowrap}

.mini-comment-body > a{

    display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;

    font-size:13px;color:var(--text-2);line-height:1.5;

    transition:color .2s;

}

.mini-comment-body > a:hover{color:var(--blue-dark)}

/* ========== 站点统计 ========== */

.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:16px}

.stat-cell{
    background:var(--card);
    border-radius:var(--radius-sm);

    border:1px solid var(--line);

    padding:14px 8px;text-align:center;

    box-shadow:inset 0 1px 0 rgba(255,255,255,.06);

    transition:background .3s,box-shadow .3s;

}

.stat-cell b{display:block;font-size:20px;color:var(--blue);line-height:1.2}

.stat-cell span{font-size:12px;color:var(--text-2)}

.runtime-box{
    background:linear-gradient(180deg,var(--blue-light),var(--blue));
    border-radius:var(--radius);

    color:#fff;text-align:center;

    padding:14px;font-size:13.5px;line-height:1.6;

    box-shadow:0 3px 10px rgba(45,137,239,.35), inset 0 1px 0 rgba(255,255,255,.25);

}

.runtime-box b{font-size:20px;letter-spacing:1px}

/* ========== 空状态 ========== */

.empty-box{
    background:var(--card);
    box-shadow:var(--shadow-card);
    border:1px solid var(--line);
    border-radius:var(--radius);
    padding:70px 24px;text-align:center;color:var(--text-2);
}

.empty-box.big{padding:100px 24px}

.err-code{

    font-size:76px;font-weight:700;color:var(--blue);line-height:1.2;margin-bottom:12px;

    text-shadow:0 2px 4px rgba(45,137,239,.2);

}

.empty-box a{color:var(--blue-dark);border-bottom:1px dashed var(--blue)}

/* ========== 回到顶部 ========== */

.back-top{
    position:fixed;right:30px;bottom:30px;width:46px;height:46px;

    background:linear-gradient(180deg,var(--blue-light),var(--blue));
    border-radius:50%;

    border:1px solid var(--blue-dark);

    color:#fff;display:flex;align-items:center;justify-content:center;

    font-size:20px;cursor:pointer;transition:all .25s;z-index:998;

    box-shadow:0 4px 14px rgba(45,137,239,.4), inset 0 1px 0 rgba(255,255,255,.25);

    text-decoration:none;

}

.back-top:hover{

    background:linear-gradient(180deg,#2d89ef,#1e6bc4);

    box-shadow:0 6px 18px rgba(45,137,239,.5), inset 0 1px 0 rgba(255,255,255,.25);

}

.back-top:active{

    transform:translateY(1px);

    box-shadow:0 1px 3px rgba(45,137,239,.3), inset 0 2px 4px rgba(0,0,0,.15);

}

/* ========== 暗黑模式精细适配（标签、按钮、卡片背景） ========== */
html:has(#themeToggle:checked) .cat-tabs a,
html[data-theme="dark"] .cat-tabs a {
    background: var(--card);
    box-shadow: none;
}
html:has(#themeToggle:checked) .single-tags a,
html[data-theme="dark"] .single-tags a {
    background: var(--card);
    color: var(--blue-light);
}
html:has(#themeToggle:checked) .main-nav a:hover,
html[data-theme="dark"] .main-nav a:hover,
html:has(#themeToggle:checked) .topic-item:hover,
html[data-theme="dark"] .topic-item:hover {
    background: rgba(45,137,239,.1);
    border-color: var(--line);
    box-shadow: none;
}
html:has(#themeToggle:checked) .link-item,
html[data-theme="dark"] .link-item {
    background: var(--card);
    box-shadow: none;
}
html:has(#themeToggle:checked) .topbar-btn,
html[data-theme="dark"] .topbar-btn {
    background: var(--card);
    box-shadow: none;
}
html:has(#themeToggle:checked) .topbar-btn:hover,
html[data-theme="dark"] .topbar-btn:hover {
    background: rgba(45,137,239,.12);
    color: var(--blue-light);
}
html:has(#themeToggle:checked) .stat-cell,
html[data-theme="dark"] .stat-cell {
    background: rgba(255,255,255,.04);
    border: 1px solid var(--line);
}
html:has(#themeToggle:checked) .search-panel,
html[data-theme="dark"] .search-panel {
    background: var(--card);
    border-color: var(--line);
}
html:has(#themeToggle:checked) .respond input,
html:has(#themeToggle:checked) .respond textarea,
html[data-theme="dark"] .respond input,
html[data-theme="dark"] .respond textarea {
    background: var(--bg);
    color: var(--text);
    border-color: var(--line);
}


html:has(#themeToggle:checked) .post-cat,
html[data-theme="dark"] .post-cat {
    background: var(--card);
    color: var(--blue-light);
}

/* ========== 响应式 - 移动端优先优化 ========== */
@media (max-width:1100px){
    .layout{grid-template-columns:240px minmax(0,1fr);gap:20px}
    .widgetbar{grid-column:1 / -1;position:static;display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));align-items:start;gap:16px}
}
@media (max-width:820px){
    .layout{
        grid-template-columns:1fr;
        padding:12px 14px;
        gap:16px;
    }
    .sider{
        position:static;
        max-height:none;
        padding:20px 16px;
        border-radius:var(--radius);
    }
    .logo{font-size:26px}
    .main-nav a, .topic-item{padding:14px 16px}
    .post-card{flex-direction:column; border-radius:var(--radius)}
    .post-thumb{width:100%;min-width:0;height:200px; border-radius:var(--radius-sm)}
    .single-post{padding:22px 18px; border-radius:var(--radius)}
    .respond-row{grid-template-columns:1fr}
    .link-item{padding:8px 14px;font-size:13px}
    .right-toolbar{padding:10px 12px}
    .right-toolbar .topbar-btn{width:42px;height:42px}
    .right-search{height:42px}
    .topbar-btn{width:44px;height:44px}
    .back-top{right:16px;bottom:16px;width:48px;height:48px; border-radius:50%}
    .widgetbar{position:static}
}
@media (max-width:480px){
    .layout{padding:10px 12px; gap:12px}
    .sider{padding:16px 14px}
    .cat-tabs a{padding:8px 14px;font-size:13px}
    .post-card{padding:14px}
    .single-post{padding:18px 14px}
    .single-title{font-size:20px; line-height:1.35}
    .comments-area{padding:16px}
    .back-top{right:14px;bottom:14px;width:46px;height:46px}
    body{font-size:14.5px}
    .main-nav a, .topic-item{gap:10px; font-size:15px}
}

/* Safe area for notched phones */
@supports (padding: max(0px)) {
    body{
        padding-left: env(safe-area-inset-left);
        padding-right: env(safe-area-inset-right);
    }
    @media (max-width:820px){
        .layout{
            padding-left: max(12px, env(safe-area-inset-left));
            padding-right: max(12px, env(safe-area-inset-right));
        }
    }
}