/* ===========================================================
   XHC 个人博客 · 样式
   设计：套用 XHC 主站风格（蓝 #0d6efd / 白底 / 圆角卡片）
   布局：参考 CSDN 博客（顶栏 + 文章流 + 侧边栏 + 目录）
   =========================================================== */

:root{
  --primary:#0d6efd;
  --primary-dark:#0b5ed7;
  --primary-soft:#eef4ff;
  --bg:#f5f6f7;
  --card:#ffffff;
  --text:#1a1a1a;
  --text-2:#6b7280;
  --text-3:#9aa0a6;
  --border:#ebedf0;
  --border-2:#f0f1f2;
  --green:#21ba72;
  --radius:10px;
  --shadow:0 1px 3px rgba(0,0,0,.06),0 4px 16px rgba(0,0,0,.04);
  --maxw:1140px;
  --header-h:60px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Inter Tight","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:15px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 16px;}
::selection{background:var(--primary);color:#fff;}

/* ---------------- 顶栏 ---------------- */
.header{
  position:sticky;top:0;z-index:50;
  height:var(--header-h);
  background:#fff;
  border-bottom:1px solid var(--border);
  box-shadow:0 1px 4px rgba(0,0,0,.04);
}
.header .container{height:100%;display:flex;align-items:center;gap:18px;}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;white-space:nowrap;}
.brand img{height:34px;width:auto;border-radius:8px;}
.brand .brand-name{color:var(--text);}
.brand .brand-name b{color:var(--primary);}
.nav{display:flex;gap:4px;margin-left:6px;}
.nav a{
  padding:7px 12px;border-radius:8px;color:var(--text-2);font-weight:600;font-size:15px;
  transition:.15s;
}
.nav a:hover{color:var(--primary);background:var(--primary-soft);}
.nav a.active{color:var(--primary);}
.search{
  margin-left:auto;display:flex;align-items:center;gap:6px;
  background:var(--bg);border:1px solid var(--border);border-radius:20px;
  padding:6px 14px;min-width:220px;
}
.search input{border:0;background:transparent;outline:none;flex:1;font-size:14px;color:var(--text);}
.search button{border:0;background:transparent;cursor:pointer;color:var(--text-3);font-size:16px;}
.search:focus-within{border-color:var(--primary);}
.header .btn-home{
  padding:7px 14px;border-radius:20px;background:var(--primary);color:#fff;font-weight:600;font-size:14px;white-space:nowrap;
}
.header .btn-home:hover{background:var(--primary-dark);}

/* ---------------- 布局 ---------------- */
.layout{display:flex;gap:24px;align-items:flex-start;padding:24px 0 48px;}
.main{flex:1 1 auto;min-width:0;}
.sidebar{flex:0 0 300px;display:flex;flex-direction:column;gap:18px;}

/* ---------------- 卡片通用 ---------------- */
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);}
.card-h{display:flex;align-items:center;gap:8px;padding:14px 18px;border-bottom:1px solid var(--border-2);font-weight:700;font-size:16px;}
.card-h .bar{width:4px;height:16px;background:var(--primary);border-radius:3px;}
.card-h .more{margin-left:auto;font-size:13px;color:var(--text-3);font-weight:500;}
.card-b{padding:14px 18px;}

/* ---------------- 文章列表 ---------------- */
.feed-head{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.feed-head h1{font-size:20px;margin:0;}
.feed-head .count{color:var(--text-3);font-size:14px;}
.tabs{display:flex;gap:18px;margin-left:auto;}
.tabs a{font-size:14px;color:var(--text-2);padding-bottom:4px;}
.tabs a.active{color:var(--primary);font-weight:700;border-bottom:2px solid var(--primary);}

.post{display:flex;gap:16px;padding:18px;margin-bottom:14px;cursor:pointer;transition:.15s;}
.post:hover{box-shadow:0 4px 20px rgba(13,110,253,.10);transform:translateY(-1px);}
.post .thumb{flex:0 0 180px;height:120px;border-radius:8px;overflow:hidden;background:linear-gradient(135deg,#0d6efd,#5b9cff);display:flex;align-items:center;justify-content:center;color:#fff;font-size:34px;font-weight:800;}
.post .thumb img{width:100%;height:100%;object-fit:cover;}
.post .body{flex:1;min-width:0;display:flex;flex-direction:column;}
.post h2{font-size:18px;margin:0 0 8px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.post:hover h2{color:var(--primary);}
.post .summary{color:var(--text-2);font-size:14px;margin:0 0 12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post .meta{display:flex;align-items:center;gap:14px;color:var(--text-3);font-size:13px;margin-top:auto;flex-wrap:wrap;}
.post .meta .cat{color:var(--primary);background:var(--primary-soft);padding:2px 10px;border-radius:12px;font-weight:600;}
.post .meta .dot{width:3px;height:3px;border-radius:50%;background:var(--text-3);}
.post .meta span i{font-style:normal;}

/* 点赞 / 收藏 按钮 */
.post-actions{display:flex;gap:8px;margin-top:12px;}
.act-btn{
  display:inline-flex;align-items:center;gap:5px;
  border:1px solid var(--border);background:var(--card);color:var(--text-2);
  padding:6px 14px;border-radius:20px;font-size:13px;font-weight:600;cursor:pointer;
  transition:.15s;font-family:inherit;line-height:1;white-space:nowrap;
}
.act-btn:hover{color:var(--primary);border-color:var(--primary);}
.act-btn:active{transform:scale(.96);}
.like-btn.active{color:#e0245e;border-color:#f6b8d0;background:#fff0f6;}
.fav-btn.active{color:#d99a00;border-color:#f3dca0;background:#fff8e6;}
/* 文章详情页的反应按钮容器 */
.article-actions .act-btn{font-size:14px;padding:8px 18px;}

/* ---------------- 分页 ---------------- */
.pager{display:flex;justify-content:center;gap:8px;margin-top:8px;}
.pager a,.pager span{padding:7px 13px;border-radius:8px;background:#fff;border:1px solid var(--border);color:var(--text-2);font-size:14px;cursor:pointer;}
.pager a:hover{border-color:var(--primary);color:var(--primary);}
.pager .cur{background:var(--primary);color:#fff;border-color:var(--primary);}

/* ---------------- 侧栏：作者卡 ---------------- */
.author-card .card-b{text-align:center;}
.author-card .ava{width:72px;height:72px;border-radius:50%;margin:0 auto 10px;border:3px solid #fff;box-shadow:var(--shadow);}
.author-card .name{font-size:18px;font-weight:800;}
.author-card .desc{color:var(--text-2);font-size:13px;margin:6px 0 12px;}
.author-card .stats{display:flex;justify-content:center;gap:0;border-top:1px solid var(--border-2);padding-top:12px;}
.author-card .stats div{flex:1;}
.author-card .stats b{display:block;font-size:17px;color:var(--text);}
.author-card .stats span{font-size:12px;color:var(--text-3);}
.author-card .links{display:flex;gap:8px;justify-content:center;margin-top:12px;}
.author-card .links a{padding:5px 12px;border-radius:16px;background:var(--primary-soft);color:var(--primary);font-size:13px;font-weight:600;}
.author-card .links a:hover{background:var(--primary);color:#fff;}

/* ---------------- 侧栏：分类 / 标签 / 热门 ---------------- */
.cat-list a{display:flex;justify-content:space-between;align-items:center;padding:9px 0;border-bottom:1px dashed var(--border-2);color:var(--text-2);font-size:14px;}
.cat-list a:last-child{border-bottom:0;}
.cat-list a:hover{color:var(--primary);}
.cat-list a .n{color:var(--text-3);font-size:12px;background:var(--bg);padding:1px 9px;border-radius:10px;}
.cat-list a:hover .n{background:var(--primary-soft);color:var(--primary);}

.tags{display:flex;flex-wrap:wrap;gap:8px;}
.tags a{padding:4px 12px;background:var(--bg);border-radius:14px;color:var(--text-2);font-size:13px;}
.tags a:hover{background:var(--primary);color:#fff;}

.hot-list a{display:flex;gap:10px;align-items:flex-start;padding:9px 0;border-bottom:1px dashed var(--border-2);color:var(--text);font-size:14px;line-height:1.5;}
.hot-list a:last-child{border-bottom:0;}
.hot-list a:hover{color:var(--primary);}
.hot-list .rank{flex:0 0 18px;font-weight:800;color:var(--text-3);font-style:italic;}
.hot-list a:nth-child(1) .rank{color:#fc5531;}
.hot-list a:nth-child(2) .rank{color:#ff9d00;}
.hot-list a:nth-child(3) .rank{color:#ffce3d;}

/* ---------------- 文章详情 ---------------- */
.article-wrap{display:flex;gap:24px;align-items:flex-start;padding:24px 0 48px;}
.article-main{flex:1 1 auto;min-width:0;background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px 32px;}
.breadcrumb{font-size:13px;color:var(--text-3);margin-bottom:14px;}
.breadcrumb a:hover{color:var(--primary);}
.article-main h1.title{font-size:27px;line-height:1.35;margin:0 0 14px;}
.article-meta{display:flex;align-items:center;gap:12px;color:var(--text-3);font-size:13px;padding-bottom:16px;border-bottom:1px solid var(--border-2);flex-wrap:wrap;}
.article-meta .cat{color:#fff;background:var(--primary);padding:2px 10px;border-radius:12px;font-weight:600;}
.article-meta .author-ava{width:24px;height:24px;border-radius:50%;}
.article-content{font-size:16px;line-height:1.9;color:#2b2b2b;margin-top:20px;}
.article-content h2{font-size:22px;margin:30px 0 12px;padding-left:12px;border-left:4px solid var(--primary);}
.article-content h3{font-size:18px;margin:24px 0 10px;}
.article-content p{margin:14px 0;}
.article-content img{border-radius:8px;margin:16px 0;}
.article-content a{color:var(--primary);border-bottom:1px solid rgba(13,110,253,.3);}
.article-content ul,.article-content ol{padding-left:22px;margin:14px 0;}
.article-content li{margin:6px 0;}
.article-content blockquote{margin:16px 0;padding:12px 18px;background:var(--primary-soft);border-left:4px solid var(--primary);border-radius:6px;color:var(--text-2);}
.article-content code{background:#f3f4f6;padding:2px 6px;border-radius:4px;font-family:"JetBrains Mono",Consolas,Monaco,monospace;font-size:13.5px;color:#c0341d;}
.article-content pre{background:#1e1e2e;color:#e4e4e4;padding:16px 18px;border-radius:10px;overflow:auto;margin:16px 0;position:relative;}
.article-content pre code{background:transparent;color:inherit;padding:0;font-size:13.5px;line-height:1.6;}
.article-content pre .copy{position:absolute;top:8px;right:10px;border:0;background:rgba(255,255,255,.12);color:#fff;border-radius:6px;padding:3px 10px;font-size:12px;cursor:pointer;opacity:0;transition:.15s;}
.article-content pre:hover .copy{opacity:1;}
.article-content pre .copy:hover{background:rgba(255,255,255,.25);}
.article-tags{display:flex;gap:10px;flex-wrap:wrap;margin:26px 0 6px;}
.article-tags a{background:var(--primary-soft);color:var(--primary);padding:5px 14px;border-radius:15px;font-size:13px;font-weight:600;}
.article-tags a:hover{background:var(--primary);color:#fff;}

.prevnext{display:flex;justify-content:space-between;gap:14px;margin-top:26px;padding-top:20px;border-top:1px solid var(--border-2);}
.prevnext a{font-size:14px;color:var(--text-2);max-width:48%;}
.prevnext a:hover{color:var(--primary);}
.prevnext .lbl{color:var(--text-3);font-size:12px;display:block;}

/* 目录 TOC */
.toc{flex:0 0 240px;position:sticky;top:calc(var(--header-h) + 16px);align-self:flex-start;max-height:calc(100vh - 90px);overflow:auto;}
.toc .card-h{position:sticky;top:0;background:#fff;}
.toc ol{list-style:none;margin:0;padding:6px 0;}
.toc li a{display:block;padding:6px 18px;font-size:13.5px;color:var(--text-2);border-left:2px solid transparent;}
.toc li a:hover,.toc li a.active{color:var(--primary);border-left-color:var(--primary);background:var(--primary-soft);}
.toc li.h3 a{padding-left:32px;font-size:13px;}
.toc .empty{color:var(--text-3);font-size:13px;padding:10px 18px;}

/* ---------------- 评论 ---------------- */
.comments{margin-top:30px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px 28px;}
.comments h3{margin:0 0 16px;font-size:18px;}
.comment-form textarea{width:100%;min-height:80px;border:1px solid var(--border);border-radius:10px;padding:12px;font:inherit;outline:none;resize:vertical;}
.comment-form textarea:focus{border-color:var(--primary);}
.comment-form .row{display:flex;gap:10px;margin-top:10px;align-items:center;}
.comment-form input{flex:1;border:1px solid var(--border);border-radius:10px;padding:10px 12px;font:inherit;outline:none;}
.comment-form input:focus{border-color:var(--primary);}
.comment-form .submit{background:var(--primary);color:#fff;border:0;padding:10px 22px;border-radius:10px;font-weight:600;cursor:pointer;flex:0 0 auto;}
.comment-form .submit:hover{background:var(--primary-dark);}
.comment-list{margin-top:22px;}
.comment-item{display:flex;gap:12px;padding:14px 0;border-top:1px solid var(--border-2);}
.comment-item .cava{width:38px;height:38px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;flex:0 0 auto;}
.comment-item .cbody{flex:1;}
.comment-item .cname{font-weight:700;font-size:14px;}
.comment-item .ctime{color:var(--text-3);font-size:12px;margin-left:8px;font-weight:400;}
.comment-item .ctext{font-size:14px;color:#333;margin-top:4px;}

/* ---------------- 空状态 ---------------- */
.empty-state{text-align:center;padding:60px 20px;color:var(--text-3);}
.empty-state .big{font-size:48px;margin-bottom:10px;}

/* ---------------- 页脚 ---------------- */
.footer{background:#fff;border-top:1px solid var(--border);padding:26px 0;text-align:center;color:var(--text-3);font-size:13px;}
.footer a{color:var(--primary);}

/* ---------------- 响应式 ---------------- */
@media(max-width:980px){
  .sidebar{display:none;}
  .toc{display:none;}
  .article-wrap{display:block;}
}
@media(max-width:680px){
  .nav{display:none;}
  /* ---- header 手机适配 ---- */
  .header .container{gap:8px;flex-wrap:wrap;height:auto;padding:8px 12px;}
  .brand{font-size:15px;gap:6px;}
  .brand img{height:28px;width:auto;}
  .search{min-width:0;flex:1;order:4;width:100%;margin:0;padding:7px 12px;}
  .header .btn-home{font-size:12px;padding:5px 10px;order:3;}
  .btn-login{font-size:12px;padding:5px 10px;}
  .account{padding:3px 8px;gap:4px;}
  .account-name{max-width:60px;font-size:12px;}
  .account-ava{width:24px;height:24px;}
  /* ---- 布局 ---- */
  .post{flex-direction:column;}
  .post .thumb{flex:0 0 auto;width:100%;height:160px;}
  .article-main{padding:20px 16px;}
  /* ---- 表单 ---- */
  form .row{flex-wrap:wrap;}
  /* ---- 编辑器封面上传 ---- */
  .cover-upload{flex-direction:column;align-items:stretch;gap:6px;}
  .cover-preview{max-height:160px;}
  /* ---- 水印缩小 ---- */
  .watermark img{height:26px;}
}

/* ---------------- 通用按钮 ---------------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 18px;border-radius:10px;font-weight:600;font-size:14px;cursor:pointer;border:1px solid transparent;transition:.15s;white-space:nowrap;}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-dark);}
.btn-primary:disabled{opacity:.6;cursor:not-allowed;}
.btn-outline{background:#fff;border-color:var(--border);color:var(--text);}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);}
.btn-danger{background:#fff;border-color:#f3c2c2;color:#d23f3f;}
.btn-danger:hover{background:#d23f3f;color:#fff;border-color:#d23f3f;}
.btn.sm{padding:6px 12px;font-size:13px;}
.btn-login{margin-left:8px;padding:7px 14px;border-radius:20px;background:var(--primary-soft);color:var(--primary);font-weight:600;font-size:14px;white-space:nowrap;}
.btn-login:hover{background:var(--primary);color:#fff;}

/* ---------------- 账户区 / 下拉菜单 ---------------- */
.account{display:flex;align-items:center;gap:7px;margin-left:10px;padding:5px 12px;border-radius:20px;cursor:pointer;background:var(--bg);}
.account:hover{background:var(--primary-soft);}
.account-ava{width:30px;height:30px;border-radius:50%;object-fit:cover;}
.account-name{font-weight:600;font-size:14px;max-width:90px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.caret{font-size:10px;color:var(--text-3);}
.account-menu{position:fixed;top:calc(var(--header-h) + 8px);right:16px;background:#fff;border:1px solid rgba(0,0,0,.08);border-radius:14px;box-shadow:0 8px 32px rgba(0,0,0,.12);padding:8px;min-width:175px;display:none;flex-direction:column;z-index:100;animation:menuIn .18s ease;}
@keyframes menuIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}
.account-menu.open{display:flex;}
.account-menu a{padding:10px 14px;border-radius:10px;color:var(--text);font-size:14px;font-weight:500;transition:background .12s,color .12s;display:flex;align-items:center;gap:8px;}
.account-menu a:hover{background:#eef5fe;color:#3498db;}
.account-menu a.danger{color:#d23f3f;}
.account-menu a.danger:hover{background:#feeeee;color:#d23f3f;}
.account-menu .sep{height:1px;background:rgba(0,0,0,.06);margin:4px 8px;}
body.dark .account-menu{background:#1c232c;border-color:rgba(255,255,255,.08);box-shadow:0 8px 32px rgba(0,0,0,.4);}
body.dark .account-menu a:hover{background:#1e2e3e;color:#5dade2;}
body.dark .account-menu .sep{background:rgba(255,255,255,.06);}
body.dark .account-menu a.danger:hover{background:#3a1a1a;}

/* ---------------- 登录/注册模态 ---------------- */
.modal-mask{display:none;position:fixed;inset:0;background:rgba(0,0,0,.45);align-items:center;justify-content:center;z-index:200;padding:16px;}
.modal{position:relative;background:#fff;border-radius:16px;padding:28px;width:100%;max-width:380px;box-shadow:0 20px 60px rgba(0,0,0,.25);}
.modal-x{position:absolute;top:12px;right:16px;border:0;background:transparent;font-size:24px;line-height:1;color:var(--text-3);cursor:pointer;}
.modal .tabs{display:flex;gap:18px;justify-content:center;margin-bottom:18px;}
.modal .tabs a{font-size:15px;color:var(--text-2);padding-bottom:4px;cursor:pointer;}
.modal .tabs a.active{color:var(--primary);font-weight:700;border-bottom:2px solid var(--primary);}
.modal form{display:flex;flex-direction:column;gap:12px;}
.modal input{width:100%;border:1px solid var(--border);border-radius:10px;padding:11px 14px;font:inherit;outline:none;}
.modal input:focus{border-color:var(--primary);}
.modal .btn-primary{width:100%;padding:12px;}
.auth-msg{min-height:18px;color:#d23f3f;font-size:13px;text-align:center;}
.auth-divider{display:flex;align-items:center;gap:10px;margin:16px 0 12px;color:var(--text-3);font-size:12px;}
.auth-divider::before,.auth-divider::after{content:"";flex:1;height:1px;background:var(--border);}
.btn-github{width:100%;padding:11px;display:flex;align-items:center;justify-content:center;gap:8px;background:#24292e;color:#fff;border:none;border-radius:10px;font-size:14px;font-weight:600;cursor:pointer;transition:background .15s;}
.btn-github:hover{background:#1b1f23;}
.btn-github:disabled{opacity:.6;cursor:not-allowed;}
body.dark .btn-github{background:#444;color:#fff;}
body.dark .btn-github:hover{background:#333;}

/* ---------------- 笔记 / 提示 ---------------- */
.note{padding:10px 14px;border-radius:10px;background:var(--primary-soft);color:var(--primary);font-size:14px;margin-bottom:14px;}
.note.warn{background:#fff4e5;color:#b3650b;}
.note a{text-decoration:underline;cursor:pointer;}
.hint{color:var(--text-3);font-size:13px;}

/* ---------------- 友情链接 ---------------- */
.friend-link{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:8px;}
.friend-link-url{font-size:14px;color:var(--primary);text-decoration:underline;word-break:break-all;}
.friend-link .btn{white-space:nowrap;}


/* ---------------- 表单（设置/编辑器） ---------------- */
form label{display:block;font-weight:600;font-size:14px;margin:14px 0 6px;}
form input[type=text],form input[type=email],form input[type=password],form textarea{width:100%;border:1px solid var(--border);border-radius:10px;padding:11px 14px;font:inherit;outline:none;}
form input:focus,form textarea:focus{border-color:var(--primary);}
form textarea{resize:vertical;}
form .row{display:flex;gap:12px;align-items:center;}
.form-row{display:flex;flex-direction:column;gap:4px;}
.avatar-row{display:flex;gap:16px;align-items:center;margin-bottom:6px;}
.avatar-lg{width:84px;height:84px;border-radius:50%;border:3px solid #fff;box-shadow:var(--shadow);object-fit:cover;}

/* ---------------- 评论（真实版） ---------------- */
.comment-form{display:flex;gap:12px;align-items:flex-start;margin-top:8px;}
.comment-form .cava{width:38px;height:38px;border-radius:50%;flex:0 0 auto;object-fit:cover;}
.comment-form .cf-right{flex:1;}
.comment-form .cf-right textarea{width:100%;min-height:80px;border:1px solid var(--border);border-radius:10px;padding:12px;font:inherit;outline:none;resize:vertical;}
.comment-form .cf-right textarea:focus{border-color:var(--primary);}
.comment-form .cf-right .row{display:flex;gap:10px;margin-top:10px;align-items:center;}
.comment-form .cf-right .submit{background:var(--primary);color:#fff;border:0;padding:10px 22px;border-radius:10px;font-weight:600;cursor:pointer;flex:0 0 auto;}
.comment-form .cf-right .submit:hover{background:var(--primary-dark);}
.login-hint{padding:14px;border-radius:10px;background:var(--bg);color:var(--text-2);font-size:14px;}
.login-hint a{color:var(--primary);text-decoration:underline;cursor:pointer;}
.cdel{margin-left:auto;border:0;background:transparent;color:var(--text-3);font-size:12px;cursor:pointer;}
.cdel:hover{color:#d23f3f;}

/* ---------------- 我的帖子 ---------------- */
.mypost{display:flex;align-items:center;gap:12px;padding:16px 18px;margin-bottom:12px;}
.mypost .mp-body{flex:1;min-width:0;}
.mypost h3{margin:0 0 6px;font-size:16px;}
.mypost h3 a:hover{color:var(--primary);}
.mypost .meta{display:flex;gap:12px;color:var(--text-3);font-size:13px;align-items:center;}
.mypost .meta .cat{color:var(--primary);background:var(--primary-soft);padding:1px 9px;border-radius:10px;font-weight:600;}
.mypost .mp-actions{display:flex;gap:8px;flex:0 0 auto;}

/* ---------------- Toast ---------------- */
.toast{position:fixed;left:50%;bottom:32px;transform:translateX(-50%) translateY(20px);background:#222;color:#fff;padding:11px 20px;border-radius:24px;font-size:14px;font-weight:600;opacity:0;transition:.3s;z-index:300;box-shadow:0 8px 30px rgba(0,0,0,.25);}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0);}
.toast.warn{background:#d23f3f;}
.toast.info{background:var(--primary,#0d6efd);}

/* ---------------- 左下角固定水印 ---------------- */
.watermark{
  position:fixed;
  left:12px;
  bottom:12px;
  z-index:9999;
  pointer-events:none;
  opacity:.55;
  transition:opacity .3s;
}
.watermark:hover{opacity:1;pointer-events:auto;}
.watermark img{
  height:36px;
  display:block;
  border-radius:4px;
}

/* ===========================================================
   富文本编辑器（类记事本）
   =========================================================== */
.rich-editor{
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  background:#fff;
}
.re-toolbar{
  display:flex;flex-wrap:wrap;align-items:center;gap:2px;
  padding:6px 8px;border-bottom:1px solid var(--border);
  background:#fafbfc;
}
.re-btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:30px;height:30px;padding:0 8px;
  border:1px solid var(--border-2);border-radius:5px;
  background:#fff;color:var(--text);font-size:13px;
  cursor:pointer;transition:all .15s;
  user-select:none;line-height:1;
}
.re-btn:hover{background:#eef4ff;border-color:var(--primary);color:var(--primary);}
.re-btn.active{background:var(--primary);color:#fff;border-color:var(--primary);}
.re-btn:active{background:#dbe8fd;}
.re-btn b{font-weight:700;}
.re-btn i{font-style:italic;font-weight:600;}
.re-sep{
  width:1px;height:20px;background:var(--border);
  margin:0 4px;display:inline-block;
}
.re-upload-label{cursor:pointer;}
.re-body{
  min-height:320px;max-height:600px;overflow-y:auto;
  padding:14px 16px;font-size:15px;line-height:1.8;
  color:var(--text);outline:none;word-wrap:break-word;
}
.re-body:empty:before{
  content:attr(placeholder);
  color:var(--text-3);pointer-events:none;
}
.re-body h2,.re-body h3{margin:12px 0 6px;color:var(--text);}
.re-body p{margin:6px 0;}
.re-body pre{
  background:#1e1e1e;color:#d4d4d4;padding:14px 16px;
  border-radius:6px;overflow-x:auto;font-size:13.5px;line-height:1.6;margin:10px 0;
}
.re-body code{
  background:#f0f0f0;padding:2px 5px;border-radius:4px;
  font-size:13px;color:#c7254e;
}
.re-body pre code{background:none;padding:0;color:inherit;font-size:inherit;}
.re-body ul{padding-left:22px;margin:6px 0;}
.re-body blockquote{
  border-left:4px solid var(--primary);margin:10px 0;
  padding:8px 16px;background:var(--primary-soft);color:var(--text-2);
  border-radius:0 6px 6px 0;
}
.re-src{
  display:block;width:100%;min-height:320px;max-height:600px;
  padding:14px 16px;border:none;resize:vertical;
  font-family:'Consolas','Monaco','Courier New',monospace;
  font-size:13.5px;line-height:1.6;color:var(--text);
  outline:none;background:#fafbfc;
}
@media(max-width:680px){
  .re-toolbar{gap:1px;padding:4px 6px;}
  .re-btn{min-width:28px;height:28px;padding:0 6px;font-size:12px;}
  .re-body{min-height:240px;padding:10px 12px;font-size:14px;}
  .re-upload-label span{display:none;} /* 手机端只显示图标 */
}

/* ===========================================================
   论坛 · 实时聊天（类 QQ）
   =========================================================== */
.forum-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:14px 0;}
.forum-tip{margin-left:auto;font-size:12px;color:var(--text-3);}
.forum-chat{
  height:62vh;min-height:360px;overflow-y:auto;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:16px;display:flex;flex-direction:column;gap:14px;
}
.msg{display:flex;gap:10px;align-items:flex-start;max-width:80%;}
.msg.mine{margin-left:auto;flex-direction:row-reverse;}
.msg-ava{
  flex:0 0 38px;width:38px;height:38px;border-radius:50%;
  color:#fff;font-weight:700;font-size:16px;
  display:flex;align-items:center;justify-content:center;
}
.msg-body{display:flex;flex-direction:column;min-width:0;}
.msg.mine .msg-body{align-items:flex-end;}
.msg-meta{font-size:12px;color:var(--text-3);margin-bottom:3px;}
.msg-name{color:var(--text-2);font-weight:600;margin-right:6px;}
.msg-bubble{
  background:#f1f2f3;color:var(--text);padding:9px 13px;border-radius:12px;
  border-top-left-radius:2px;font-size:14.5px;line-height:1.6;word-break:break-word;
}
.msg.mine .msg-bubble{
  background:var(--primary);color:#fff;border-top-left-radius:12px;border-top-right-radius:2px;
}
.forum-input{
  display:flex;gap:10px;margin-top:12px;align-items:flex-end;
}
.forum-input textarea{
  flex:1;resize:none;padding:11px 14px;border:1px solid var(--border);
  border-radius:10px;font-size:14.5px;font-family:inherit;line-height:1.5;outline:none;
}
.forum-input textarea:focus{border-color:var(--primary);}
.forum-input .btn{flex:0 0 auto;height:44px;padding:0 22px;}
@media(max-width:680px){
  .forum-chat{height:64vh;}
  .msg{max-width:92%;}
  .forum-tip{display:none;}
  .announcement-bar{padding:10px 14px;}
  .announcement-inner{flex-direction:column;gap:4px;}
  .announcement-edit,.announcement-del{font-size:11px;padding:2px 8px;}
}

/* ===========================================================
   置顶功能
   =========================================================== */
.pin-badge{
  display:inline-block;
  background:var(--primary);color:#fff;font-size:11px;font-weight:600;
  padding:2px 7px;border-radius:6px;margin-right:6px;vertical-align:middle;
}
.mypost.pinned{border-color:var(--primary);box-shadow:0 0 0 1px var(--primary) inset;}
.article-actions #pinToggle{display:inline-block;}
.pin-btn{white-space:nowrap;}

/* ===========================================================
   页面跳转加载动画
   =========================================================== */
.page-loader{
  position:fixed;top:0;left:0;right:0;bottom:0;
  background:rgba(255,255,255,0.96);z-index:99999;
  display:flex;align-items:center;justify-content:center;
  flex-direction:column;
  opacity:0;pointer-events:none;
  transition:opacity .25s ease;
}
.page-loader.active{opacity:1;pointer-events:auto;}
.loader-content{
  text-align:center;
  display:flex;flex-direction:column;align-items:center;
}
.loader-logo{
  width:140px;height:auto;
  animation:loaderPulse 1s ease-in-out infinite alternate;
}
.loader-bar{
  width:200px;height:4px;background:#e9ecef;border-radius:2px;
  margin-top:20px;overflow:hidden;position:relative;
}
.loader-bar-inner{
  position:absolute;top:0;left:0;height:100%;
  width:40%;background:var(--primary);border-radius:2px;
  animation:loaderSlide 2s ease-in-out infinite;
}
@keyframes loaderPulse{
  from{transform:scale(1);opacity:.7;}
  to{transform:scale(1.05);opacity:1;}
}
@keyframes loaderSlide{
  0%{left:-40%;}
  50%{left:100%;}
  100%{left:-40%;}
}

/* ===========================================================
   公告栏
   =========================================================== */
.announcement-bar{
  background:linear-gradient(135deg,#e8f0fe 0%,#f0f4ff 50%,#fff8e1 100%);
  border-bottom:1px solid #d4e3f5;
  padding:14px 20px;
}
.announcement-inner{
  max-width:1100px;margin:0 auto;
  display:flex;align-items:flex-start;gap:10px;
  font-size:14px;line-height:1.7;color:#333;
}
.announcement-icon{flex:0 0 auto;font-size:18px;padding-top:1px;}
.announcement-text{flex:1;word-break:break-word;}
.announcement-text h2,.announcement-text h3{margin:6px 0;font-size:16px;color:var(--primary);}
.announcement-text blockquote{
  border-left:3px solid var(--primary);background:#f8f9fa;
  padding:8px 14px;margin:8px 0;border-radius:0 6px 6px 0;
}
.announcement-text code{
  background:#f1f3f5;padding:2px 6px;border-radius:4px;font-size:13px;
}
.announcement-edit,.announcement-del{
  flex:0 0 auto;font-size:12px;padding:3px 10px;
  border:1px solid var(--border);border-radius:6px;
  background:#fff;cursor:pointer;color:var(--text-2);
  transition:all .2s;
}
.announcement-edit:hover{border-color:var(--primary);color:var(--primary);}
.announcement-del:hover{border-color:#dc3545;color:#dc3545;}

/* 公告编辑器 */
.announce-edit-body{
  border:1px solid var(--border);border-radius:8px;
  min-height:180px;background:#fff;outline:none;
}
.announce-edit-body:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(13,110,253,.1);}

/* 管理员按钮 */
.btn-warning{background:#fff3cd;color:#856404;border-color:#ffc107;}
.btn-warning:hover{background:#ffc107;color:#fff;}

/* ===========================================================
   用户管理页面
   =========================================================== */
.user-row{
  display:flex;align-items:center;gap:14px;
  padding:14px 18px;border-bottom:1px solid var(--border);
  transition:background .2s;
}
.user-row:last-child{border-bottom:none;}
.user-row:hover{background:#f8f9fa;}
.user-row.banned{background:#fff5f5;}
.u-avatar-wrap{position:relative;flex:0 0 auto;}
.u-avatar{width:44px;height:44px;border-radius:50%;object-fit:cover;border:2px solid #e9ecef;}
.u-online-dot{
  position:absolute;right:-2px;bottom:-2px;
  width:12px;height:12px;border-radius:50%;
  background:#adb5bd;border:2px solid #fff;
}
.u-online-dot.on{background:#28a745;box-shadow:0 0 0 2px rgba(40,167,69,.25);}
.u-info{flex:1;min-width:0;}
.u-name{font-weight:600;font-size:15px;color:#212529;display:flex;align-items:center;gap:8px;}
.u-meta{font-size:12px;color:#868e96;margin-top:3px;word-break:break-all;}
.badge-ban{background:#dc3545;color:#fff;font-size:11px;padding:1px 7px;border-radius:6px;font-weight:500;}
.u-actions{flex:0 0 auto;}

@media(max-width:680px){
  .user-row{flex-wrap:wrap;gap:10px;}
  .u-info{flex:1 1 100%;order:3;}
  .u-actions{order:2;}
}

/* ===================== 夜间模式 ===================== */
body.dark{
  --primary:#4d94ff;
  --primary-dark:#3a7de0;
  --primary-soft:#1b2740;
  --bg:#0f1115;
  --card:#171a21;
  --text:#e6e8eb;
  --text-2:#9aa3af;
  --text-3:#6b7280;
  --border:#262b34;
  --border-2:#1f242c;
  --shadow:0 1px 3px rgba(0,0,0,.45),0 4px 16px rgba(0,0,0,.35);
}

/* 硬编码白色表面翻转 */
body.dark .header{background:#11141a;border-bottom-color:var(--border);}
body.dark .article-main,
body.dark .comments,
body.dark .modal,
body.dark .account-menu,
body.dark .footer,
body.dark .btn-outline,
body.dark .btn-danger,
body.dark .pager a,
body.dark .toc .card-h,
body.dark .re-body,
body.dark .announce-edit-body,
body.dark .card,
body.dark .mypost{background:var(--card);}

body.dark .user-row.banned{background:#2a1416;}
body.dark .user-row:hover{background:#1d2128;}
body.dark .msg:not(.mine) .msg-bubble{background:#262b34;color:var(--text);}

/* 论坛聊天区夜间模式 */
body.dark .forum-chat{background:var(--card);border-color:var(--border);}
body.dark .forum-tip{color:var(--text-3);}
body.dark .article-content code{background:#262b34;color:#e89b9b;}
body.dark .re-code-block{background:#262b34;}
body.dark .re-preview{background:var(--card);}
body.dark .article-content pre{background:#161b22;}

/* 输入框深色化 */
body.dark input,
body.dark textarea,
body.dark select,
body.dark .modal input,
body.dark .comment-form textarea,
body.dark .cf-right textarea,
body.dark .forum-input textarea,
body.dark .announce-edit-body{background:var(--card);color:var(--text);border-color:var(--border);}
body.dark input::placeholder,
body.dark textarea::placeholder{color:var(--text-3);}

body.dark .announcement-bar{
  background:linear-gradient(135deg,#1a2332 0%,#1b2740 50%,#1f2a1a 100%);
  border-bottom-color:var(--border);
}
body.dark .announcement-inner{color:var(--text);}
body.dark .announcement-text blockquote{background:#1d2128;border-color:#3d5a80;}
body.dark .announcement-text code{background:#262b34;color:#e89b9b;}
body.dark .announcement-edit,.announcement-del{
  background:var(--card);color:var(--text-2);border-color:var(--border);
}

/* 用户管理页文字 */
body.dark .u-name{color:var(--text);}
body.dark .u-meta{color:var(--text-2);}
body.dark .u-avatar{border-color:var(--border);}
body.dark .u-online-dot{border-color:var(--card);}

/* 加载动画遮罩 */
body.dark .page-loader{background:rgba(15,17,21,.96);}

/* 编辑器按钮 hover */
body.dark .re-btn:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary);}

/* 点赞 / 收藏 按钮（夜间模式）*/
body.dark .act-btn{background:var(--card);color:var(--text-2);border-color:var(--border);}
body.dark .act-btn:hover{color:var(--primary);border-color:var(--primary);}
body.dark .like-btn.active{color:#f472b6;border-color:#3d1f2e;background:#2a1520;}
body.dark .fav-btn.active{color:#fbbf24;border-color:#3d3518;background:#2a2515;}
body.dark .like-btn.active{background:#3a1d29;color:#ff7aa2;border-color:#5a2a3d;}
body.dark .fav-btn.active{background:#3a3219;color:#ffd24d;border-color:#5a4a25;}

/* 主题切换按钮 */
.theme-toggle{margin-left:8px;cursor:pointer;font-family:inherit;}

/* 动效开关：关闭时禁用全站动画与过渡（避免眩晕/省电） */
.no-anim *, .no-anim *::before, .no-anim *::after {
  animation: none !important;
  transition: none !important;
}

/* 设置页 · 偏好设置开关 */
.switch-row{display:flex;align-items:center;justify-content:space-between;cursor:pointer;font-size:15px;font-weight:600;color:#222;padding:8px 0;}
.dark .switch-row{color:#e8e8e8;}
.switch{position:relative;display:inline-block;width:46px;height:26px;flex:0 0 auto;margin-left:16px;}
.switch input{opacity:0;width:0;height:0;}
.switch .slider{position:absolute;cursor:pointer;inset:0;background:#cfd8e3;border-radius:26px;transition:.2s;}
.switch .slider:before{content:"";position:absolute;height:20px;width:20px;left:3px;top:3px;background:#fff;border-radius:50%;transition:.2s;box-shadow:0 1px 3px rgba(0,0,0,.25);}
.switch input:checked + .slider{background:#3498db;}
.switch input:checked + .slider:before{transform:translateX(20px);}

/* ===========================================================
   帖子界面 · onyes5634.github.io 风格（仅首页 / 我的帖子 / 收藏）
   说明：.post 用于首页与收藏列表，.mypost 用于「我的帖子」列表，
   这两个类只出现在 index.html / myposts.html / favs.html，
   因此这里只影响帖子界面，不动 Header / Footer / 详情页 / 论坛 / 编辑器。
   =========================================================== */

/* 帖子界面标题：蓝紫红渐变文字（与工具箱一致） */
.feed-head h1,
.main > h1{
  font-size:26px;
  background:linear-gradient(135deg,#3498db,#9b59b6,#e74c3c);
  background-size:220% 100%;
  -webkit-background-clip:text;background-clip:text;color:transparent;
  display:inline-block;
  animation:onyesTitle 8s ease infinite;
}
@keyframes onyesTitle{0%{background-position:0% 50%}50%{background-position:100% 50%}100%{background-position:0% 50%}}

/* 帖子卡片（首页 / 收藏）—— onyes 风格卡片 */
.post{
  position:relative;overflow:hidden;
  background:#fff;border:1px solid rgba(0,0,0,.08);border-radius:14px;padding:18px;margin-bottom:16px;
  box-shadow:0 1px 3px rgba(0,0,0,.06);
  transition:transform .25s cubic-bezier(.18,.89,.32,1.28),box-shadow .25s,border-color .25s;
}
.post::before{
  content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;
  background:radial-gradient(circle,rgba(52,152,219,.12) 0%,transparent 70%);
  opacity:0;transition:opacity .4s;pointer-events:none;z-index:0;
}
.post:hover::before{opacity:1;}
.post:hover{transform:translateY(-6px);box-shadow:0 12px 35px rgba(0,0,0,.10);border-color:#3498db;}
.post .body,
.post .thumb{position:relative;z-index:1;}
.post .thumb{flex:0 0 180px;height:120px;border-radius:10px;background:linear-gradient(135deg,#3498db,#5b9cff);}
.post h2{font-size:19px;color:#1a1a1a;transition:color .2s;}
.post:hover h2{color:#3498db;}
.post .meta .cat{color:#fff;background:#3498db;}
.post .act-btn{border-radius:20px;transition:.15s;}
.post .act-btn:hover{color:#3498db;border-color:#3498db;}

/* 「我的帖子」卡片 —— onyes 风格卡片 */
.mypost{
  position:relative;overflow:hidden;
  background:#fff;border:1px solid rgba(0,0,0,.08);border-radius:14px;padding:18px;margin-bottom:14px;
  box-shadow:0 1px 3px rgba(0,0,0,.06);
  transition:transform .25s cubic-bezier(.18,.89,.32,1.28),box-shadow .25s,border-color .25s;
}
.mypost::before{
  content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;
  background:radial-gradient(circle,rgba(52,152,219,.12) 0%,transparent 70%);
  opacity:0;transition:opacity .4s;pointer-events:none;z-index:0;
}
.mypost:hover::before{opacity:1;}
.mypost:hover{transform:translateY(-6px);box-shadow:0 12px 35px rgba(0,0,0,.10);border-color:#3498db;}
.mypost .mp-body,
.mypost .mp-actions{position:relative;z-index:1;}
.mypost h3 a{color:#1a1a1a;transition:color .2s;}
.mypost h3 a:hover{color:#3498db;}
.mypost .meta .cat{color:#fff;background:#3498db;}

/* 暗色模式下的 onyes 帖子卡片 */
body.dark .post,
body.dark .mypost{background:#1c232c;border-color:rgba(255,255,255,.09);}
body.dark .post:hover,
body.dark .mypost:hover{border-color:#5dade2;box-shadow:0 12px 35px rgba(0,0,0,.45);}
body.dark .post h2,
body.dark .mypost h3 a{color:#e6e8eb;}
body.dark .post:hover h2,
body.dark .mypost h3 a:hover{color:#5dade2;}
body.dark .post .meta .cat,
body.dark .mypost .meta .cat{background:#2a6fb0;color:#e6f0fa;}