:root{
  --primary:#3B82F6; --primary-d:#2563eb; --gray:#64748b; --line:#e2e8f0;
  --bg:#f8fafc; --card:#fff; --text:#1e293b; --muted:#64748b;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{overflow-x:hidden}
body{font-family:system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--text);line-height:1.6}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:1360px;margin:0 auto;padding:0 24px}

/* 导航 */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;background:rgba(255,255,255,.85);
  backdrop-filter:blur(8px);box-shadow:0 1px 3px rgba(0,0,0,.08)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{font-size:20px;font-weight:700;display:flex;align-items:center;gap:8px}
.menu{display:flex;gap:24px;align-items:center}
.menu a{color:#334155;font-size:15px}
.menu a:hover{color:var(--primary)}
.burger{display:none;font-size:22px;background:none;border:none;cursor:pointer}
.mobile{display:none;flex-direction:column;padding:12px 24px;background:#fff;border-top:1px solid var(--line)}
.mobile.show{display:flex}
.mobile a{padding:8px 0;color:#334155}
@media(max-width:768px){
  .menu{display:none}
  .burger{display:block}
  .dots{display:none}
  .slider{padding:24px 18px;margin-bottom:16px}
  .slider h2{font-size:19px}
  .slider p{font-size:13px;margin-top:6px}
  .slides{min-height:0}
}
@media(max-width:960px){.side{display:none}}

/* 布局 */
.main{padding-top:84px;padding-bottom:10px}
.grid{display:grid;grid-template-columns:1fr 340px;gap:28px}
.grid>*{min-width:0}
@media(max-width:960px){.grid{grid-template-columns:1fr}}
.card{background:var(--card);border-radius:12px;box-shadow:0 1px 3px rgba(0,0,0,.06);padding:24px}
.card-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}

/* 幻灯：标题一行 + 内容一行，高度自适应 */
.slider{background:linear-gradient(90deg,rgba(59,130,246,.12),rgba(59,130,246,.04));
  border-radius:12px;padding:36px;text-align:center;margin-bottom:24px}
.slides{position:relative;min-height:60px}
.slide{position:absolute;inset:0;opacity:0;transition:opacity .5s}
.slide.active{opacity:1}
.slide h2{font-size:26px;line-height:1.3}
.slide p{color:var(--muted);margin-top:8px}
.dots{margin-top:14px}
.dots span{display:inline-block;width:8px;height:8px;border-radius:50%;background:#cbd5e1;margin:0 4px;cursor:pointer}
.dots span.active{background:var(--primary)}

/* 分类页/列表页标题卡与列表之间的间距 */
.page-head{margin-bottom:20px}

/* 文章卡片 */
.post{display:flex;gap:18px;padding:20px;margin-bottom:18px;transition:.25s}
.post:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(0,0,0,.1)}
.post .body{flex:1}
.post h3{font-size:19px;margin-bottom:6px}
.post h3 a:hover{color:var(--primary)}
.badge{display:inline-block;background:#dbeafe;color:#1e40af;padding:2px 10px;border-radius:999px;font-size:12px}
.meta{color:var(--muted);font-size:15px;margin:8px 0}
.summary{color:#475569;font-size:16px}
.readmore{color:var(--primary);font-size:15px}
.readmore:hover{text-decoration:underline}
.post-foot{display:flex;align-items:center;justify-content:space-between;margin-top:10px}
.admin-actions{display:flex;gap:6px;align-items:center}
.empty{text-align:center;color:var(--muted);padding:48px}

/* 侧边栏 */
.side .card{margin-bottom:20px}
.side h4{font-size:16px;margin-bottom:14px}
.avatar{width:88px;height:88px;border-radius:50%;display:block;margin:0 auto 12px;
  border:3px solid #fff;box-shadow:0 4px 14px rgba(0,0,0,.12)}
.center{text-align:center}
.profile{padding:28px 20px 0}
.pname{font-size:20px;font-weight:700;display:flex;align-items:center;justify-content:center;gap:8px;
  background:linear-gradient(90deg,#3B82F6,#8b5cf6);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent}
.pname .badge-badge{-webkit-text-fill-color:#fff}
.bio{color:var(--muted);font-size:15px;margin:12px 0 0}
.stats{display:flex;margin:16px -20px 0;padding:10px 0;border-top:1px solid var(--line)}
.stats>div{flex:1}
.stats>div+div{border-left:1px solid var(--line)}
.stats b{font-size:17px;font-weight:700;color:var(--primary);display:block;line-height:1.2}
.stats small{color:var(--muted);font-size:11px}
.side a.row{display:flex;justify-content:space-between;padding:8px 10px;border-radius:8px;color:#334155;font-size:15px}
.side a.row:hover{background:#f1f5f9}
.side .dot{color:var(--primary);font-size:14px}
.search{display:flex}
.search input{flex:1;border:1px solid var(--line);border-radius:8px 0 0 8px;padding:9px 12px}
.search button{background:var(--primary);color:#fff;border:none;padding:0 16px;border-radius:0 8px 8px 0;cursor:pointer}

/* 分页 */
.pagination{display:flex;gap:8px;justify-content:center;align-items:center;margin-top:24px;flex-wrap:wrap}
.pagination .pg{min-width:38px;height:38px;padding:0 10px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid #e2e8f0;border-radius:10px;background:#fff;font-size:14px;font-weight:500;color:#475569;transition:.15s}
.pagination .pg:hover{border-color:var(--primary);color:var(--primary);background:#eff6ff}
.pagination .cur{background:var(--primary);color:#fff;border-color:var(--primary);
  box-shadow:0 4px 10px rgba(59,130,246,.3)}
.pagination .dots{padding:0 2px;color:#94a3b8;letter-spacing:2px}

/* 文章正文 */
.article h1{font-size:30px;margin-bottom:14px}
.article-content{font-size:16px;color:#334155;overflow-wrap:break-word;word-break:break-word}
.article-content h2,.article-content h3{margin:20px 0 10px}
.article-content img{border-radius:8px;max-width:100%;height:auto}
.article-content pre{background:#0f172a;color:#e2e8f0;padding:16px;border-radius:10px;overflow:auto;margin:12px 0;font-size:14px;line-height:1.6}
.article-content code{background:#e2e8f0;padding:2px 6px;border-radius:4px;color:#db2777;font-size:.9em}
.article-content pre code{background:none;color:#e2e8f0;padding:0}
.article-content blockquote{border-left:4px solid var(--line);padding-left:14px;color:var(--muted);margin:12px 0}
.article-content ol,.article-content ul{padding-left:24px;margin:10px 0}
.article-content ol li,.article-content ul li{margin:4px 0}

/* 上一篇/下一篇 */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:20px}
@media(max-width:640px){.pager{grid-template-columns:1fr}}
.pager-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px;
  transition:.2s;display:flex;flex-direction:column;gap:6px;min-width:0}
.pager-item small{color:var(--primary);font-size:12px;letter-spacing:.5px}
.pager-item span{color:#334155;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0;max-width:100%}
.pager-item:hover{border-color:var(--primary);box-shadow:0 6px 18px rgba(59,130,246,.12);transform:translateY(-2px)}
.pager-item:hover span{color:var(--primary)}
.pager-item.placeholder{border:none;background:transparent;box-shadow:none}

/* 表单 */
input,textarea,select{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;font:inherit}
textarea{font-family:ui-monospace,Menlo,Consolas,monospace}
label{display:block;font-size:15px;margin:12px 0 4px}
.btn{display:inline-block;background:var(--primary);color:#fff;border:none;padding:10px 18px;
  border-radius:8px;cursor:pointer;font-size:15px}
.btn:hover{background:var(--primary-d)}
.btn.gray{background:#e2e8f0;color:#334155}
.btn.danger{background:#ef4444}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:768px){.form-grid{grid-template-columns:1fr}}

/* 表格 */
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:10px;border-bottom:1px solid var(--line);font-size:15px}
th{color:var(--muted);font-weight:600}
.stat-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:20px}
@media(max-width:768px){.stat-cards{grid-template-columns:1fr}}
@media(max-width:768px){
  table{display:block;overflow-x:auto;white-space:nowrap}
}
.stat-card{background:var(--card);border-radius:12px;box-shadow:0 1px 3px rgba(0,0,0,.06);
  padding:20px;display:flex;align-items:center;gap:16px;position:relative;overflow:hidden;
  transition:.25s}
.stat-card:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(0,0,0,.1)}
.stat-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--c)}
.stat-icon{width:48px;height:48px;border-radius:12px;background:color-mix(in srgb,var(--c) 15%,#fff);
  display:flex;align-items:center;justify-content:center;font-size:22px}
.stat-card small{color:var(--muted);display:block}

/* flash */
.flash{padding:10px 14px;border-radius:8px;margin-bottom:14px;background:#dcfce7;color:#166534}

/* footer */
footer{background:#fff;border-top:1px solid var(--line);color:#94a3b8;padding:24px 0;margin-top:40px}
.f-bottom{text-align:center;font-size:13px;color:#94a3b8}

/* 站长名后的徽标（与昵称等高） */
.badge-badge{background:linear-gradient(135deg,#3B82F6,#8b5cf6);color:#fff;font-size:11px;
  font-weight:600;padding:1px 8px;border-radius:999px;letter-spacing:.3px;line-height:1.5;
  box-shadow:0 1px 4px rgba(59,130,246,.3)}

/* 扁平图标小按钮 */
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;
  border-radius:6px;border:1px solid var(--line);background:#fff;color:#64748b;cursor:pointer;
  vertical-align:middle;transition:.15s}
.icon-btn:hover{background:#f1f5f9}
.icon-btn.edit{color:#2563eb}
.icon-btn.danger{color:#dc2626}
.icon-btn.danger:hover{background:#fee2e2}

/* 侧边栏最新文章：标题左、日期右，标题过长省略 */
.row.latest .t{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0;margin-right:8px}
.row.latest .dot{flex-shrink:0;color:#94a3b8}

/* 移动端：隐藏后台统计与上一篇/下一篇 */
@media(max-width:768px){
  .stat-cards{display:none !important}
  .pager{display:none !important}
}

/* 登录页 */
.login-body{min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#3B82F6,#8b5cf6)}
.login-box{width:380px;max-width:92vw;background:#fff;border-radius:16px;padding:36px 32px;
  box-shadow:0 20px 60px rgba(0,0,0,.2)}
.login-logo{width:56px;height:56px;border-radius:14px;background:linear-gradient(135deg,#3B82F6,#8b5cf6);
  display:flex;align-items:center;justify-content:center;margin:0 auto 16px;
  box-shadow:0 8px 20px rgba(59,130,246,.4)}
.login-box h2{text-align:center;font-size:22px}
.login-sub{text-align:center;color:#94a3b8;font-size:13px;margin:4px 0 20px}
.login-box label{margin-top:14px}
.login-box .btn{width:100%;margin-top:22px;padding:12px;border-radius:10px;font-size:15px}
.remember{display:flex!important;align-items:center;gap:8px;font-size:14px;color:#64748b;cursor:pointer}
.remember input{width:auto}

/* 搜索浮层 */
#search-mask{display:none;position:fixed;inset:0;background:rgba(15,23,42,.45);backdrop-filter:blur(2px);z-index:100}
#search-panel{display:none;position:fixed;top:10%;left:50%;transform:translateX(-50%);width:640px;max-width:92vw;
  background:#fff;border-radius:14px;z-index:101;box-shadow:0 24px 60px rgba(15,23,42,.25);overflow:hidden}
#search-box{width:100%;border:none;border-bottom:1px solid #eef2f7;padding:16px 18px;font-size:16px;outline:none;box-shadow:none}
#search-results{max-height:55vh;overflow:auto}
#search-results a{display:block;padding:12px 18px;border-bottom:1px solid #f1f5f9;color:var(--text)}
#search-results a:hover{background:#f8fafc}
#search-results a small{display:block;color:var(--muted);font-size:13px;margin-top:2px}
#search-results .empty{padding:24px;text-align:center;color:var(--muted)}