/* ============================================================
   34_Metro_Tile - 磁贴论坛
   布局: Windows 8 Metro 磁贴网格风格
   前缀: mt-
   ============================================================ */

/* ---------- 基础 ---------- */
:root{
  --mt-cyan:#00BCD4;
  --mt-cyan-dark:#0097A7;
  --mt-red:#F44336;
  --mt-indigo:#3F51B5;
  --mt-orange:#FF9800;
  --mt-green:#4CAF50;
  --mt-purple:#9C27B0;
  --mt-teal:#009688;
  --mt-pink:#E91E63;
  --mt-bluegrey:#607D8B;
  --mt-brown:#795548;
  --mt-yellow:#FFEB3B;
  --mt-bg:#EEEEEE;
  --mt-surface:#FFFFFF;
  --mt-text:#212121;
  --mt-text-soft:#546E7A;
  --mt-text-mute:#90A4AE;
  --mt-border:#E0E0E0;
  --mt-dark:#263238;
  --mt-radius:4px;
  --mt-shadow:0 2px 6px rgba(0,0,0,.14);
  --mt-transition:.3s cubic-bezier(.4,0,.2,1);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:"Segoe UI","Microsoft YaHei",Roboto,Helvetica,Arial,sans-serif;
  background:var(--mt-bg);
  color:var(--mt-text);
  font-size:14px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
ul{list-style:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
svg{flex-shrink:0;}

/* ---------- Metro导航栏 ---------- */
.mt-nav{
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;gap:24px;
  background:var(--mt-dark);
  padding:0 24px;height:56px;
  box-shadow:0 2px 8px rgba(0,0,0,.18);
}
.mt-nav-logo{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:600;}
.mt-nav-search{
  display:flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.12);
  border-radius:var(--mt-radius);
  padding:8px 14px;color:#B2EBF2;flex:1;max-width:420px;
  transition:background .2s;
}
.mt-nav-search:focus-within{background:rgba(255,255,255,.2);}
.mt-nav-search input{flex:1;border:none;background:none;outline:none;color:#fff;font-size:14px;}
.mt-nav-search input::placeholder{color:#B2EBF2;}
.mt-nav-right{display:flex;align-items:center;gap:14px;margin-left:auto;}
.mt-nav-icon{position:relative;width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;transition:background .2s;}
.mt-nav-icon:hover{background:rgba(255,255,255,.15);}
.mt-badge{position:absolute;top:0;right:0;background:var(--mt-red);color:#fff;font-size:10px;min-width:16px;height:16px;border-radius:8px;display:flex;align-items:center;justify-content:center;padding:0 4px;font-weight:700;}
.mt-nav-avatar{width:34px;height:34px;border-radius:50%;border:2px solid rgba(255,255,255,.3);}

/* ---------- Banner磁贴 ---------- */
.mt-banner-tile{
  background:linear-gradient(135deg,#1A237E 0%,#1565C0 50%,#00838F 100%);
  padding:56px 40px;color:#fff;position:relative;overflow:hidden;
}
.mt-banner-tile::before,.mt-banner-tile::after{
  content:"";position:absolute;border-radius:var(--mt-radius);
}
.mt-banner-tile::before{width:120px;height:120px;background:var(--mt-cyan);opacity:.5;top:-30px;right:8%;transform:rotate(12deg);}
.mt-banner-tile::after{width:80px;height:80px;background:var(--mt-yellow);opacity:.4;bottom:-20px;right:22%;}
.mt-banner-content{position:relative;z-index:2;max-width:760px;}
.mt-banner-content h1{font-size:38px;font-weight:300;margin-bottom:8px;}
.mt-banner-content p{font-size:16px;color:#B3E5FC;margin-bottom:22px;}
.mt-banner-search{display:flex;align-items:center;gap:10px;background:#fff;border-radius:var(--mt-radius);padding:10px 16px;max-width:520px;color:var(--mt-text-mute);box-shadow:0 4px 16px rgba(0,0,0,.2);}
.mt-banner-search input{flex:1;border:none;outline:none;font-size:15px;color:var(--mt-text);}

/* ---------- 区块通用 ---------- */
.mt-section{padding:32px 40px 8px;}
.mt-section-title{font-size:20px;font-weight:600;color:var(--mt-text);margin-bottom:18px;padding-left:12px;border-left:5px solid var(--mt-cyan);}

/* ---------- 板块磁贴网格 ---------- */
.mt-tile-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  grid-auto-rows:140px;
  gap:8px;
}
.mt-tile{
  position:relative;overflow:hidden;perspective:1000px;
  display:block;color:#fff;padding:18px;
  border-radius:var(--mt-radius);
  box-shadow:var(--mt-shadow);
  transition:transform .25s,box-shadow .25s;
}
.mt-tile:hover{transform:translateY(-3px) scale(1.01);box-shadow:0 8px 20px rgba(0,0,0,.22);}
.mt-tile-1x1{grid-column:span 1;grid-row:span 1;}
.mt-tile-2x1{grid-column:span 2;grid-row:span 1;}
.mt-tile-2x2{grid-column:span 2;grid-row:span 2;}
.mt-tile-front,.mt-tile-back{
  position:absolute;inset:0;padding:18px;
  display:flex;flex-direction:column;
  transition:opacity .4s,transform .4s;
  backface-visibility:hidden;
}
.mt-tile-front{opacity:1;justify-content:space-between;}
.mt-tile-back{opacity:0;transform:rotateY(180deg);justify-content:center;gap:6px;}
.mt-tile:hover .mt-tile-front,
.mt-tile.mt-flip .mt-tile-front{opacity:0;transform:rotateY(180deg);}
.mt-tile:hover .mt-tile-back,
.mt-tile.mt-flip .mt-tile-back{opacity:1;transform:rotateY(0deg);}
.mt-tile-name{font-size:18px;font-weight:600;margin-top:8px;}
.mt-tile-badge{font-size:12px;background:rgba(255,255,255,.25);padding:2px 10px;border-radius:20px;align-self:flex-start;}
.mt-tile-back-title{font-size:14px;font-weight:600;margin-bottom:6px;opacity:.9;}
.mt-tile-back-item{font-size:12px;opacity:.85;padding:3px 0;border-bottom:1px solid rgba(255,255,255,.15);}
.mt-tile-back-item:last-child{border-bottom:none;}

/* ---------- 统计磁贴 ---------- */
.mt-stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;}
.mt-stat-tile{padding:22px 18px;color:#fff;border-radius:var(--mt-radius);box-shadow:var(--mt-shadow);transition:transform .25s;}
.mt-stat-tile:hover{transform:translateY(-3px);}
.mt-stat-tile strong{display:block;font-size:30px;font-weight:700;margin-bottom:4px;}
.mt-stat-tile span{font-size:13px;opacity:.9;}

/* ---------- 双栏 ---------- */
.mt-two-col{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.mt-col{background:var(--mt-surface);border-radius:var(--mt-radius);padding:20px;box-shadow:var(--mt-shadow);}
.mt-hot-list{display:flex;flex-direction:column;gap:6px;}
.mt-hot-item{display:flex;align-items:center;gap:10px;padding:10px 12px;background:#FAFAFA;border-radius:var(--mt-radius);font-size:14px;color:var(--mt-text-soft);transition:background .2s,transform .2s;}
.mt-hot-item:hover{background:#F5F5F5;transform:translateX(4px);color:var(--mt-text);}
.mt-hot-rank{width:22px;height:22px;border-radius:4px;background:var(--mt-cyan);color:#fff;font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.mt-recommend-list{display:flex;flex-direction:column;gap:10px;}
.mt-recommend-item{display:flex;align-items:center;gap:10px;padding:12px;background:#FAFAFA;border-radius:var(--mt-radius);font-size:14px;color:var(--mt-text-soft);transition:background .2s,transform .2s;}
.mt-recommend-item:hover{background:#F5F5F5;transform:translateX(4px);color:var(--mt-text);}
.mt-rec-tag{font-size:11px;padding:2px 10px;border-radius:3px;color:#fff;font-weight:600;flex-shrink:0;}

/* ---------- 页脚 ---------- */
.mt-footer{background:var(--mt-dark);color:#B0BEC5;text-align:center;padding:20px;font-size:13px;margin-top:32px;}

/* ============================================================
   list.html - 帖子列表
   ============================================================ */
.mt-breadcrumb{display:flex;align-items:center;gap:8px;padding:14px 40px;font-size:13px;color:var(--mt-text-soft);background:var(--mt-surface);border-bottom:1px solid var(--mt-border);}
.mt-breadcrumb a{display:flex;align-items:center;gap:4px;color:var(--mt-cyan-dark);font-weight:500;}
.mt-breadcrumb a:hover{text-decoration:underline;}

.mt-board-header-tile{padding:28px 40px;color:#fff;position:relative;overflow:hidden;}
.mt-board-header-content{display:flex;align-items:center;gap:24px;flex-wrap:wrap;}
.mt-board-header-icon{width:64px;height:64px;border-radius:var(--mt-radius);background:rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.mt-board-header-info{flex:1;min-width:200px;}
.mt-board-header-info h1{font-size:26px;font-weight:600;margin-bottom:4px;}
.mt-board-header-info p{font-size:14px;opacity:.9;}
.mt-board-header-stats{display:flex;gap:24px;}
.mt-bh-stat{display:flex;flex-direction:column;}
.mt-bh-stat strong{font-size:22px;font-weight:700;}
.mt-bh-stat span{font-size:12px;opacity:.85;}
.mt-new-post-tile{display:flex;align-items:center;gap:6px;background:rgba(255,255,255,.2);color:#fff;padding:10px 18px;border-radius:var(--mt-radius);font-size:14px;font-weight:600;transition:background .2s;flex-shrink:0;}
.mt-new-post-tile:hover{background:rgba(255,255,255,.35);}

.mt-list-section{padding:24px 40px;}
.mt-list-toolbar{display:flex;align-items:center;gap:8px;margin-bottom:16px;flex-wrap:wrap;}
.mt-tab{padding:8px 20px;border-radius:var(--mt-radius);background:#FAFAFA;color:var(--mt-text-soft);font-size:13px;font-weight:500;transition:all .2s;}
.mt-tab:hover{background:#E0E0E0;}
.mt-tab-active{background:var(--mt-cyan);color:#fff;}
.mt-sort-select{margin-left:auto;padding:8px 14px;border:1px solid var(--mt-border);border-radius:var(--mt-radius);font-size:13px;background:#fff;outline:none;color:var(--mt-text);cursor:pointer;}

.mt-post-list{display:flex;flex-direction:column;gap:8px;}
.mt-post-item{display:flex;align-items:center;gap:16px;background:var(--mt-surface);padding:16px 20px;border-radius:var(--mt-radius);box-shadow:var(--mt-shadow);transition:transform .2s,box-shadow .2s;}
.mt-post-item:hover{transform:translateX(4px);box-shadow:0 4px 14px rgba(0,0,0,.12);}
.mt-post-sticky{background:#FFFDE7;}
.mt-post-left{display:flex;align-items:center;gap:14px;flex:1;min-width:0;}
.mt-post-avatar{width:44px;height:44px;border-radius:50%;flex-shrink:0;}
.mt-post-info{flex:1;min-width:0;}
.mt-post-tags{display:flex;gap:6px;margin-bottom:6px;flex-wrap:wrap;}
.mt-pill{font-size:11px;padding:2px 10px;border-radius:3px;color:#fff;font-weight:600;}
.mt-pill-dark{background:var(--mt-dark);} .mt-pill-gray{background:#9E9E9E;}
.mt-pill-red{background:var(--mt-red);} .mt-pill-orange{background:var(--mt-orange);} .mt-pill-green{background:var(--mt-green);}
.mt-post-info h3{font-size:15px;font-weight:600;color:var(--mt-text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.mt-post-info h3 a:hover{color:var(--mt-cyan-dark);}
.mt-post-meta{display:flex;gap:8px;font-size:12px;color:var(--mt-text-mute);margin-top:4px;}
.mt-post-right{display:flex;gap:18px;flex-shrink:0;}
.mt-post-stat{text-align:center;}
.mt-post-stat strong{display:block;font-size:16px;font-weight:700;color:var(--mt-text);}
.mt-post-stat span{font-size:11px;color:var(--mt-text-mute);}

/* 分页 */
.mt-pagination{display:flex;justify-content:center;align-items:center;gap:6px;margin-top:24px;flex-wrap:wrap;}
.mt-page-btn{min-width:38px;height:38px;padding:0 12px;border-radius:var(--mt-radius);display:flex;align-items:center;justify-content:center;background:var(--mt-surface);color:var(--mt-text-soft);font-size:14px;box-shadow:var(--mt-shadow);transition:all .2s;}
.mt-page-btn:hover:not(.mt-disabled){background:var(--mt-cyan);color:#fff;}
.mt-page-btn.mt-active{background:var(--mt-cyan);color:#fff;font-weight:600;}
.mt-page-btn.mt-disabled{opacity:.4;cursor:not-allowed;}
.mt-page-dots{color:var(--mt-text-mute);padding:0 4px;}

/* 侧边磁贴 */
.mt-sidebar-section{padding:0 40px 24px;display:grid;grid-template-columns:repeat(3,1fr);gap:12px;}
.mt-sidebar-tile{padding:18px;border-radius:var(--mt-radius);color:#fff;box-shadow:var(--mt-shadow);}
.mt-sidebar-tile h3{font-size:15px;font-weight:600;margin-bottom:10px;}
.mt-sidebar-tile p{font-size:13px;opacity:.9;line-height:1.6;}
.mt-sidebar-hot li,.mt-sidebar-users li{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid rgba(255,255,255,.18);font-size:13px;}
.mt-sidebar-hot li:last-child,.mt-sidebar-users li:last-child{border-bottom:none;}
.mt-sidebar-hot a{flex:1;color:#fff;opacity:.95;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.mt-sidebar-hot a:hover{opacity:1;text-decoration:underline;}
.mt-hot-num{width:20px;height:20px;border-radius:3px;background:rgba(255,255,255,.25);font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.mt-sidebar-users li img{width:30px;height:30px;border-radius:50%;}
.mt-sidebar-users li div{display:flex;flex-direction:column;}
.mt-sidebar-users li strong{font-size:13px;}
.mt-sidebar-users li span{font-size:11px;opacity:.85;}

/* ============================================================
   detail.html - 帖子详情
   ============================================================ */
.mt-detail-wrap{padding:24px 40px;display:grid;grid-template-columns:1fr 300px;gap:24px;align-items:start;}
.mt-detail-main{display:flex;flex-direction:column;gap:16px;min-width:0;}
.mt-detail-title-bar{background:var(--mt-surface);border-radius:var(--mt-radius);box-shadow:var(--mt-shadow);padding:24px;}
.mt-detail-title{font-size:24px;font-weight:600;color:var(--mt-text);line-height:1.4;margin-bottom:14px;}
.mt-detail-meta{display:flex;flex-wrap:wrap;gap:14px;font-size:13px;color:var(--mt-text-soft);}
.mt-detail-meta span{display:flex;align-items:center;gap:5px;}

.mt-post-detail{background:var(--mt-surface);border-radius:var(--mt-radius);box-shadow:var(--mt-shadow);overflow:hidden;}
.mt-post-detail-head{display:flex;align-items:center;gap:14px;padding:18px 24px;background:#FAFAFA;border-bottom:1px solid var(--mt-border);}
.mt-post-detail-avatar{width:56px;height:56px;border-radius:50%;}
.mt-post-detail-author{flex:1;}
.mt-post-detail-name{font-size:16px;font-weight:600;color:var(--mt-text);}
.mt-post-detail-role{font-size:12px;color:#fff;background:var(--mt-cyan);padding:2px 10px;border-radius:3px;margin-left:8px;font-weight:500;}
.mt-post-detail-time{font-size:12px;color:var(--mt-text-mute);}
.mt-post-detail-floor{background:var(--mt-cyan);color:#fff;font-size:12px;padding:4px 12px;border-radius:3px;font-weight:600;}
.mt-post-detail-content{padding:24px;font-size:15px;line-height:1.85;color:var(--mt-text);}
.mt-post-detail-content p{margin-bottom:14px;}
.mt-post-detail-content ul{margin:10px 0 14px 20px;}
.mt-post-detail-content li{list-style:disc;margin-bottom:6px;}
.mt-post-detail-image{width:100%;max-width:560px;border-radius:var(--mt-radius);margin:14px 0;}
.mt-post-detail-actions{display:flex;gap:10px;padding:16px 24px;border-top:1px solid var(--mt-border);background:#FAFAFA;}
.mt-action-btn{display:flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--mt-radius);background:#fff;color:var(--mt-text-soft);font-size:13px;border:1px solid var(--mt-border);transition:all .2s;}
.mt-action-btn:hover{background:var(--mt-cyan);color:#fff;border-color:var(--mt-cyan);}

.mt-replies-title{font-size:18px;font-weight:600;color:var(--mt-text);padding-left:12px;border-left:5px solid var(--mt-cyan);margin:8px 0;}
.mt-reply-item{background:var(--mt-surface);border-radius:var(--mt-radius);box-shadow:var(--mt-shadow);padding:18px 24px;}
.mt-reply-head{display:flex;align-items:center;gap:12px;margin-bottom:12px;padding-bottom:12px;border-bottom:1px solid var(--mt-border);}
.mt-reply-avatar{width:40px;height:40px;border-radius:50%;}
.mt-reply-name{font-size:14px;font-weight:600;color:var(--mt-text);}
.mt-reply-badge{font-size:11px;padding:1px 8px;border-radius:3px;color:#fff;font-weight:500;}
.mt-reply-floor{font-size:12px;color:var(--mt-text-mute);margin-left:auto;background:#F5F5F5;padding:2px 10px;border-radius:3px;}
.mt-reply-time{font-size:12px;color:var(--mt-text-mute);}
.mt-reply-text{font-size:14px;color:var(--mt-text);line-height:1.8;}
.mt-reply-image{width:100%;max-width:420px;border-radius:var(--mt-radius);margin:10px 0;}
.mt-reply-actions{display:flex;gap:8px;margin-top:12px;}

.mt-reply-box{background:var(--mt-surface);border-radius:var(--mt-radius);box-shadow:var(--mt-shadow);padding:20px 24px;}
.mt-reply-box-title{font-size:15px;font-weight:600;margin-bottom:14px;color:var(--mt-text);}
.mt-reply-textarea{width:100%;min-height:120px;padding:14px;border:1px solid var(--mt-border);border-radius:var(--mt-radius);resize:vertical;font-family:inherit;font-size:14px;outline:none;transition:border-color .2s;}
.mt-reply-textarea:focus{border-color:var(--mt-cyan);}
.mt-reply-tools{display:flex;align-items:center;gap:8px;margin-top:12px;}
.mt-reply-tool{width:36px;height:36px;border-radius:var(--mt-radius);display:flex;align-items:center;justify-content:center;background:#FAFAFA;color:var(--mt-text-soft);transition:all .2s;}
.mt-reply-tool:hover{background:var(--mt-cyan);color:#fff;}
.mt-reply-submit{margin-left:auto;background:var(--mt-cyan);color:#fff;padding:9px 24px;border-radius:var(--mt-radius);font-size:14px;font-weight:600;transition:background .2s;}
.mt-reply-submit:hover{background:var(--mt-cyan-dark);}

/* 详情侧边栏 */
.mt-detail-sidebar{display:flex;flex-direction:column;gap:16px;position:sticky;top:72px;}
.mt-detail-side-tile{padding:18px;border-radius:var(--mt-radius);color:#fff;box-shadow:var(--mt-shadow);}
.mt-detail-side-tile h3{font-size:15px;font-weight:600;margin-bottom:12px;}
.mt-author-card{display:flex;flex-direction:column;align-items:center;text-align:center;gap:8px;}
.mt-author-card img{width:64px;height:64px;border-radius:50%;border:3px solid rgba(255,255,255,.3);}
.mt-author-card strong{font-size:16px;}
.mt-author-stats{display:flex;gap:16px;width:100%;justify-content:center;padding-top:10px;border-top:1px solid rgba(255,255,255,.2);margin-top:6px;}
.mt-author-stats div{display:flex;flex-direction:column;}
.mt-author-stats strong{font-size:18px;}
.mt-author-stats label{font-size:11px;opacity:.85;}

/* ============================================================
   search.html - 搜索页
   ============================================================ */
.mt-search-hero{background:linear-gradient(135deg,#1A237E 0%,#1565C0 50%,#00838F 100%);padding:48px 40px;color:#fff;text-align:center;}
.mt-search-hero h1{font-size:30px;font-weight:300;margin-bottom:8px;}
.mt-search-hero p{font-size:14px;color:#B3E5FC;margin-bottom:22px;}
.mt-search-box-large{display:flex;gap:8px;max-width:680px;margin:0 auto;background:#fff;border-radius:var(--mt-radius);padding:6px;box-shadow:0 6px 20px rgba(0,0,0,.2);}
.mt-search-input-large{flex:1;border:none;outline:none;padding:12px 16px;font-size:15px;color:var(--mt-text);}
.mt-search-btn-large{display:flex;align-items:center;gap:6px;background:var(--mt-cyan);color:#fff;padding:0 24px;border-radius:var(--mt-radius);font-size:14px;font-weight:600;transition:background .2s;}
.mt-search-btn-large:hover{background:var(--mt-cyan-dark);}
.mt-search-info{margin-top:16px;font-size:13px;color:#B3E5FC;}
.mt-search-info .mt-search-kw{color:#fff;font-weight:600;}
.mt-search-info .mt-search-cnt{color:#FFEB3B;font-weight:700;}

.mt-search-section{padding:24px 40px;display:grid;grid-template-columns:1fr 280px;gap:24px;align-items:start;}
.mt-search-main{min-width:0;}
.mt-filter-bar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;background:var(--mt-surface);border-radius:var(--mt-radius);padding:12px 16px;box-shadow:var(--mt-shadow);margin-bottom:16px;}
.mt-filter-tabs{display:flex;gap:6px;flex-wrap:wrap;}
.mt-filter-tab{padding:6px 16px;border-radius:var(--mt-radius);background:#FAFAFA;color:var(--mt-text-soft);font-size:13px;transition:all .2s;}
.mt-filter-tab:hover{background:#E0E0E0;}
.mt-filter-active{background:var(--mt-cyan);color:#fff;}
.mt-search-results{display:flex;flex-direction:column;gap:10px;}
.mt-search-result{background:var(--mt-surface);border-radius:var(--mt-radius);box-shadow:var(--mt-shadow);padding:18px 20px;transition:transform .2s,box-shadow .2s;border-left:4px solid var(--mt-cyan);}
.mt-search-result:hover{transform:translateX(4px);box-shadow:0 4px 14px rgba(0,0,0,.12);}
.mt-sr-head{display:flex;align-items:center;gap:10px;margin-bottom:8px;}
.mt-sr-tag{font-size:11px;padding:2px 10px;border-radius:3px;color:#fff;font-weight:600;flex-shrink:0;}
.mt-sr-title{font-size:16px;font-weight:600;color:var(--mt-text);}
.mt-search-result:hover .mt-sr-title{color:var(--mt-cyan-dark);}
.mt-sr-summary{font-size:13px;color:var(--mt-text-soft);line-height:1.7;margin-bottom:10px;}
.mt-sr-summary em{background:#FFF9C4;color:var(--mt-text);font-style:normal;padding:0 3px;border-radius:2px;}
.mt-sr-meta{display:flex;flex-wrap:wrap;gap:16px;font-size:12px;color:var(--mt-text-mute);}
.mt-sr-meta span{display:flex;align-items:center;gap:5px;}

.mt-search-sidebar{display:flex;flex-direction:column;gap:16px;position:sticky;top:72px;}
.mt-hot-tags{display:flex;flex-wrap:wrap;gap:8px;}
.mt-hot-tag{padding:6px 14px;border-radius:var(--mt-radius);background:#FAFAFA;color:var(--mt-text-soft);font-size:13px;transition:all .2s;}
.mt-hot-tag:hover{background:var(--mt-cyan);color:#fff;}
.mt-ht-1{background:var(--mt-red);color:#fff;} .mt-ht-2{background:var(--mt-orange);color:#fff;} .mt-ht-3{background:var(--mt-green);color:#fff;}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1100px){
  .mt-tile-grid{grid-template-columns:repeat(2,1fr);}
  .mt-stat-grid{grid-template-columns:repeat(2,1fr);}
  .mt-detail-wrap{grid-template-columns:1fr;}
  .mt-detail-sidebar{position:static;flex-direction:row;flex-wrap:wrap;}
  .mt-detail-side-tile{flex:1;min-width:240px;}
  .mt-search-section{grid-template-columns:1fr;}
  .mt-search-sidebar{position:static;flex-direction:row;flex-wrap:wrap;}
  .mt-search-sidebar > div{flex:1;min-width:240px;}
  .mt-sidebar-section{grid-template-columns:1fr;}
}
@media (max-width:768px){
  .mt-nav{padding:0 16px;gap:12px;}
  .mt-nav-search{display:none;}
  .mt-banner-tile{padding:32px 20px;}
  .mt-banner-content h1{font-size:28px;}
  .mt-section{padding:24px 16px 8px;}
  .mt-list-section{padding:16px;}
  .mt-sidebar-section{padding:0 16px 16px;}
  .mt-breadcrumb{padding:12px 16px;}
  .mt-board-header-tile{padding:20px 16px;}
  .mt-board-header-content{gap:14px;}
  .mt-board-header-stats{gap:16px;}
  .mt-detail-wrap{padding:16px;}
  .mt-search-hero{padding:32px 16px;}
  .mt-search-section{padding:16px;}
  .mt-search-box-large{flex-direction:column;border-radius:var(--mt-radius);}
  .mt-search-btn-large{justify-content:center;padding:12px;}
  .mt-post-item{flex-direction:column;align-items:flex-start;gap:12px;}
  .mt-post-right{align-self:flex-end;}
  .mt-two-col{grid-template-columns:1fr;}
}
@media (max-width:480px){
  .mt-tile-grid{grid-template-columns:1fr;grid-auto-rows:120px;}
  .mt-tile-2x2,.mt-tile-2x1{grid-column:span 1;grid-row:span 1;}
  .mt-stat-grid{grid-template-columns:1fr;}
  .mt-board-header-stats{width:100%;}
  .mt-post-detail-content{padding:16px;}
  .mt-detail-title{font-size:20px;}
}

/* ============================================================
   CMS 专用扩展样式
   适配 CMS 标签输出 & 评论 / 登录注册 / 问答系统
   使用 34_Metro_Tile 变量 (--mt-*)
   ============================================================ */

/* ---------- CMS 分页 (jv-pagination) ---------- */
.jv-pagination{
  display:flex;justify-content:center;align-items:center;
  gap:6px;margin:28px 0;flex-wrap:wrap;
}
.jv-pagination a,
.jv-pagination span{
  min-width:38px;height:38px;padding:0 12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--mt-surface);color:var(--mt-text-soft);
  font-size:14px;border-radius:var(--mt-radius);
  box-shadow:var(--mt-shadow);transition:all var(--mt-transition);
  text-decoration:none;
}
.jv-pagination a:hover{
  background:var(--mt-cyan);color:#fff;transform:translateY(-2px);
}
.jv-pagination .current,
.jv-pagination span.current{
  background:var(--mt-cyan);color:#fff;font-weight:600;
}
.jv-pagination .dots,
.jv-pagination span.dots{
  background:none;box-shadow:none;min-width:auto;color:var(--mt-text-mute);
}
.jv-pagination a.prev:hover,
.jv-pagination a.next:hover{background:var(--mt-cyan-dark);}

/* ---------- 评论系统 (Metro 磁贴风格适配) ---------- */
.comment-section{
  background:var(--mt-surface);border-radius:var(--mt-radius);
  box-shadow:var(--mt-shadow);padding:24px;margin-top:16px;
}
.comment-section .comment-title{
  font-size:18px;font-weight:600;color:var(--mt-text);
  margin-bottom:18px;padding-left:12px;border-left:5px solid var(--mt-cyan);
}
.comment-item{
  display:flex;gap:14px;padding:18px 0;
  border-bottom:1px solid var(--mt-border);
}
.comment-item:last-child{border-bottom:none;}
.comment-avatar{
  width:44px;height:44px;border-radius:50%;flex-shrink:0;
  background:var(--mt-cyan);
}
.comment-main{flex:1;min-width:0;}
.comment-head{
  display:flex;align-items:center;gap:10px;margin-bottom:8px;flex-wrap:wrap;
}
.comment-author{font-size:14px;font-weight:600;color:var(--mt-text);}
.comment-time{font-size:12px;color:var(--mt-text-mute);margin-left:auto;}
.comment-content{font-size:14px;line-height:1.8;color:var(--mt-text-soft);}
.comment-content p{margin-bottom:8px;}
.comment-reply-btn{
  display:inline-flex;align-items:center;gap:5px;
  font-size:12px;color:var(--mt-cyan-dark);background:none;
  padding:4px 10px;border-radius:var(--mt-radius);
  transition:all var(--mt-transition);margin-top:8px;
}
.comment-reply-btn:hover{background:var(--mt-cyan);color:#fff;}
.comment-reply-form{
  margin-top:12px;padding:14px;background:#FAFAFA;
  border-radius:var(--mt-radius);display:none;
}
.comment-reply-form.show{display:block;}
.comment-reply-input{
  width:100%;min-height:80px;padding:12px;
  border:1px solid var(--mt-border);border-radius:var(--mt-radius);
  font-family:inherit;font-size:14px;resize:vertical;outline:none;
  transition:border-color var(--mt-transition);box-sizing:border-box;
}
.comment-reply-input:focus{border-color:var(--mt-cyan);}
.comment-reply-submit{
  margin-top:10px;background:var(--mt-cyan);color:#fff;
  padding:8px 20px;border-radius:var(--mt-radius);font-size:13px;font-weight:600;
  transition:background var(--mt-transition);
}
.comment-reply-submit:hover{background:var(--mt-cyan-dark);}
.comment-replies{
  margin-top:12px;padding-left:18px;border-left:3px solid var(--mt-border);
}
.comment-empty{
  text-align:center;padding:32px;color:var(--mt-text-mute);font-size:14px;
}
.comment-load-more{
  display:block;margin:18px auto 0;padding:10px 28px;
  background:var(--mt-surface);color:var(--mt-cyan-dark);
  border-radius:var(--mt-radius);font-size:14px;font-weight:600;
  box-shadow:var(--mt-shadow);transition:all var(--mt-transition);
}
.comment-load-more:hover{background:var(--mt-cyan);color:#fff;transform:translateY(-2px);}
.comment-submit-btn{
  background:var(--mt-cyan);color:#fff;padding:10px 28px;
  border-radius:var(--mt-radius);font-size:14px;font-weight:600;
  transition:background var(--mt-transition);
}
.comment-submit-btn:hover{background:var(--mt-cyan-dark);}

/* ---------- 登录 / 注册页面 (mt-auth) ---------- */
.mt-auth-wrap{
  min-height:calc(100vh - 56px);display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#1A237E 0%,#1565C0 50%,#00838F 100%);
  padding:32px 16px;
}
.mt-auth-box{
  width:100%;max-width:420px;background:var(--mt-surface);
  border-radius:var(--mt-radius);box-shadow:0 12px 40px rgba(0,0,0,.25);overflow:hidden;
}
.mt-auth-header{background:var(--mt-dark);color:#fff;padding:28px 32px;text-align:center;}
.mt-auth-header h1{font-size:22px;font-weight:600;margin-bottom:6px;}
.mt-auth-header p{font-size:13px;color:#B0BEC5;}
.mt-auth-form{padding:28px 32px;}
.mt-auth-group{margin-bottom:20px;}
.mt-auth-group label{display:block;font-size:13px;font-weight:600;color:var(--mt-text-soft);margin-bottom:8px;}
.mt-auth-group input{
  width:100%;padding:12px 14px;border:1px solid var(--mt-border);
  border-radius:var(--mt-radius);font-size:14px;font-family:inherit;
  outline:none;transition:border-color var(--mt-transition);box-sizing:border-box;
}
.mt-auth-group input:focus{border-color:var(--mt-cyan);}
.mt-auth-submit{
  width:100%;background:var(--mt-cyan);color:#fff;padding:13px;
  border-radius:var(--mt-radius);font-size:15px;font-weight:600;
  transition:background var(--mt-transition);margin-top:6px;
}
.mt-auth-submit:hover{background:var(--mt-cyan-dark);}
.mt-auth-footer{
  padding:16px 32px;background:#FAFAFA;border-top:1px solid var(--mt-border);
  text-align:center;font-size:13px;color:var(--mt-text-soft);
}
.mt-auth-footer a{color:var(--mt-cyan-dark);font-weight:600;}
.mt-auth-footer a:hover{text-decoration:underline;}

/* ---------- 问答最佳答案 (mt-best-answer) ---------- */
.mt-best-answer{
  background:#E8F5E9;border:1px solid var(--mt-green);
  border-radius:var(--mt-radius);padding:20px 24px;margin:16px 0;
  position:relative;box-shadow:var(--mt-shadow);
}
.mt-best-answer::before{
  content:"最佳答案";position:absolute;top:-12px;left:20px;
  background:var(--mt-green);color:#fff;font-size:12px;font-weight:600;
  padding:3px 14px;border-radius:var(--mt-radius);
}
.mt-best-answer .comment-content{color:var(--mt-text);}

/* ---------- 问答系统覆盖 (qa-wide) 适配 Metro ---------- */
.qa-wide-hero{
  background:linear-gradient(135deg,var(--mt-indigo) 0%,var(--mt-cyan) 100%) !important;
  border-radius:var(--mt-radius) !important;
  box-shadow:var(--mt-shadow) !important;
}
.qa-wide-content{max-width:1400px;margin:0 auto;padding:0 40px;}
.qa-wide-card{
  background:var(--mt-surface) !important;border-radius:var(--mt-radius) !important;
  box-shadow:var(--mt-shadow) !important;
  transition:transform var(--mt-transition),box-shadow var(--mt-transition) !important;
}
.qa-wide-card:hover{
  transform:translateY(-3px) !important;
  box-shadow:0 8px 20px rgba(0,0,0,.18) !important;
}
.qa-wide-pagination{
  display:flex;justify-content:center;align-items:center;gap:6px;
  margin:28px 0;flex-wrap:wrap;
}
.qa-wide-pagination a,
.qa-wide-pagination span{
  min-width:38px;height:38px;padding:0 12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--mt-surface);color:var(--mt-text-soft);font-size:14px;
  border-radius:var(--mt-radius);box-shadow:var(--mt-shadow);
  transition:all var(--mt-transition);text-decoration:none;
}
.qa-wide-pagination a:hover{background:var(--mt-cyan);color:#fff;}
.qa-wide-pagination .current,
.qa-wide-pagination span.current{background:var(--mt-cyan);color:#fff;font-weight:600;}

/* ---------- 移动端响应式补充 ---------- */
@media (max-width:768px){
  .jv-pagination a,.jv-pagination span,
  .qa-wide-pagination a,.qa-wide-pagination span{min-width:34px;height:34px;font-size:13px;}
  .comment-section{padding:16px;}
  .comment-item{flex-direction:column;gap:10px;padding:14px 0;}
  .comment-avatar{width:38px;height:38px;}
  .comment-time{margin-left:0;}
  .mt-auth-wrap{padding:16px;}
  .mt-auth-box{max-width:100%;}
  .mt-auth-form{padding:20px;}
  .mt-auth-header{padding:22px 20px;}
  .mt-auth-footer{padding:14px 20px;}
  .qa-wide-content{padding:0 16px;}
  .qa-wide-hero{padding:28px 20px !important;}
  .mt-best-answer{padding:16px;margin:12px 0;}
}
@media (max-width:480px){
  .comment-replies{padding-left:12px;}
  .qa-wide-hero{padding:22px 16px !important;}
}