/* tl-binance.com 链途 — 博客园 cnblogs style */
:root{
  --lt-primary:#1e7adb;
  --lt-primary-dark:#1668c0;
  --lt-link:#1e7adb;
  --lt-link-hover:#0d4f97;
  --lt-text:#333333;
  --lt-text-sub:#666666;
  --lt-text-mute:#999999;
  --lt-bg:#f4f4f4;
  --lt-bg-card:#ffffff;
  --lt-border:#e6e6e6;
  --lt-border-light:#f0f0f0;
  --lt-header-bg:#ffffff;
  --lt-promo-bg:#1c2833;
  --lt-promo-text:#dde3ea;
  --lt-promo-accent:#ff8c00;
  --lt-widget-hd-bg:#f5f7fa;
  --lt-rail-bg:#fafafa;
  --lt-tag-bg:#eef5fb;
  --lt-tag-text:#1668c0;
  --lt-warn:#d9534f;
  --lt-success:#5cb85c;
  --lt-shadow:0 1px 3px rgba(0,0,0,0.04);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Roboto,Helvetica,Arial,sans-serif;
  font-size:13px;
  line-height:1.65;
  color:var(--lt-text);
  background:var(--lt-bg);
}
a{color:var(--lt-link);text-decoration:none}
a:hover{color:var(--lt-link-hover);text-decoration:underline}
img{max-width:100%;height:auto;vertical-align:middle}
em{font-style:normal}
ul,ol,li{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:600}

/* ====== 顶部白色 header ====== */
.lt-top{
  background:var(--lt-header-bg);
  border-bottom:1px solid var(--lt-border);
  position:sticky;
  top:0;
  z-index:100;
  box-shadow:0 1px 4px rgba(0,0,0,0.05);
}
.lt-top-inner{
  max-width:1200px;
  margin:0 auto;
  padding:0 16px;
  height:54px;
  display:flex;
  align-items:center;
  gap:20px;
}
.lt-logo{
  display:flex;
  align-items:center;
  gap:8px;
  font-weight:700;
  color:var(--lt-text);
  text-decoration:none;
}
.lt-logo:hover{color:var(--lt-link);text-decoration:none}
.lt-logo img{width:30px;height:30px}
.lt-logo-name{font-size:18px;color:var(--lt-link)}
.lt-logo-domain{font-size:11px;color:var(--lt-text-mute);font-weight:400;margin-left:-2px}
.lt-topnav{
  display:flex;
  gap:20px;
  flex:1;
}
.lt-topnav a{
  color:var(--lt-text);
  font-size:13px;
  padding:6px 0;
}
.lt-topnav a:hover{color:var(--lt-link);text-decoration:none}
.lt-top-right{
  display:flex;
  align-items:center;
  gap:14px;
}
.lt-search{
  position:relative;
  width:200px;
}
.lt-search input{
  width:100%;
  height:30px;
  border:1px solid var(--lt-border);
  border-radius:15px;
  padding:0 36px 0 14px;
  font-size:12px;
  background:#fafafa;
  color:var(--lt-text);
  outline:none;
}
.lt-search input:focus{border-color:var(--lt-primary);background:#fff}
.lt-search span{
  position:absolute;
  right:12px;
  top:50%;
  transform:translateY(-50%);
  color:var(--lt-text-mute);
  display:flex;
}
.lt-lang{
  display:flex;
  align-items:center;
  gap:2px;
  border:1px solid var(--lt-border);
  border-radius:4px;
  padding:2px;
}
.lt-lang a{
  font-size:11px;
  padding:3px 6px;
  color:var(--lt-text-sub);
  border-radius:2px;
  line-height:1;
}
.lt-lang a.active{
  background:var(--lt-primary);
  color:#fff;
}
.lt-lang a:hover{text-decoration:none}

/* ====== 深色 promo bar ====== */
.lt-promobar{
  background:var(--lt-promo-bg);
  color:var(--lt-promo-text);
  position:sticky;
  top:54px;
  z-index:99;
}
.lt-promobar-inner{
  max-width:1200px;
  margin:0 auto;
  padding:0 16px;
  height:38px;
  display:flex;
  align-items:center;
  gap:12px;
  font-size:13px;
  overflow:hidden;
}
.lt-pb-tag{
  background:var(--lt-promo-accent);
  color:#fff;
  padding:3px 8px;
  border-radius:3px;
  font-size:11px;
  font-weight:600;
}
.lt-pb-tag-alt{background:#5c8feb}
.lt-pb-text strong{color:#fff;font-weight:600}
.lt-pb-text{color:var(--lt-promo-text)}
.lt-pb-divider{color:#5a6270;margin:0 4px}
.lt-pb-text-light{color:#9aa3ad;font-size:12px}
.lt-pb-link{color:var(--lt-promo-text);font-size:13px;max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.lt-pb-link:hover{color:#fff;text-decoration:none}

/* ====== 三栏主体 ====== */
.lt-page{
  max-width:1200px;
  margin:0 auto;
  padding:14px 16px 0 16px;
  display:grid;
  grid-template-columns:60px 1fr 280px;
  gap:14px;
  align-items:start;
}
.lt-page-static{
  grid-template-columns:60px 1fr;
}

/* ====== 左侧图标 rail ====== */
.lt-rail{
  background:var(--lt-rail-bg);
  border:1px solid var(--lt-border);
  border-radius:4px;
  padding:6px 0;
  position:sticky;
  top:106px;
}
.lt-rail-item{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:3px;
  padding:10px 4px;
  color:var(--lt-text-sub);
  font-size:11px;
  border-left:2px solid transparent;
  text-decoration:none;
}
.lt-rail-item svg{
  color:var(--lt-text-sub);
}
.lt-rail-item:nth-child(1) svg{color:#e74c3c}
.lt-rail-item:nth-child(2) svg{color:#27ae60}
.lt-rail-item:nth-child(3) svg{color:#f39c12}
.lt-rail-item:nth-child(4) svg{color:#3498db}
.lt-rail-item:nth-child(5) svg{color:#9b59b6}
.lt-rail-item:nth-child(6) svg{color:#16a085}
.lt-rail-item:nth-child(7) svg{color:#c0392b}
.lt-rail-item:nth-child(8) svg{color:#7f8c8d}
.lt-rail-item:nth-child(9) svg{color:#34495e}
.lt-rail-item:nth-child(10) svg{color:#e67e22}
.lt-rail-item:hover{
  background:#fff;
  border-left-color:var(--lt-primary);
  color:var(--lt-link);
  text-decoration:none;
}
.lt-rail-on{
  background:#fff;
  border-left-color:var(--lt-primary);
  color:var(--lt-link);
}

/* ====== 中央文章列表 ====== */
.lt-main{
  background:var(--lt-bg-card);
  border:1px solid var(--lt-border);
  border-radius:4px;
  padding:14px 18px;
  min-width:0;
}
.lt-quickfilter{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px 12px;
  padding-bottom:12px;
  border-bottom:1px solid var(--lt-border-light);
  margin-bottom:8px;
  font-size:12px;
}
.lt-qf-tag{
  display:inline-block;
  padding:2px 6px;
  border-radius:2px;
  font-size:11px;
  color:#fff;
}
.lt-qf-edit{background:#16a085}
.lt-qf-hot{background:#e74c3c}
.lt-qf-new{background:#3498db}
.lt-qf-link{color:var(--lt-text-sub);font-size:12px}
.lt-qf-link strong{color:var(--lt-text);font-weight:600}
.lt-qf-link:hover{color:var(--lt-link)}
.lt-qf-divider{color:var(--lt-border);margin:0 4px}

.lt-postlist{
  display:flex;
  flex-direction:column;
}
.lt-pcard{
  padding:16px 0;
  border-bottom:1px dashed var(--lt-border);
}
.lt-pcard:last-child{border-bottom:none}
.lt-pcard-title{
  font-size:16px;
  margin-bottom:8px;
  font-weight:600;
  line-height:1.4;
}
.lt-pcard-title a{color:var(--lt-link)}
.lt-pcard-title a:hover{color:var(--lt-link-hover);text-decoration:underline}
.lt-pcard-excerpt{
  color:var(--lt-text-sub);
  font-size:13px;
  line-height:1.7;
  margin:0 0 8px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.lt-pcard-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px;
  font-size:12px;
  color:var(--lt-text-mute);
}
.lt-pcard-author{
  color:#16a085;
  font-weight:500;
}
.lt-pcard-author:hover{text-decoration:none;color:#117a65}
.lt-pcard-date{color:var(--lt-text-mute)}
.lt-pcard-tag{
  background:var(--lt-tag-bg);
  color:var(--lt-tag-text);
  padding:1px 6px;
  border-radius:2px;
  font-size:11px;
}
.lt-pcard-tag:hover{text-decoration:none;background:#dceaf7}
.lt-pcard-stat{
  display:inline-flex;
  align-items:center;
  gap:3px;
  color:var(--lt-text-mute);
}
.lt-pcard-stat svg{opacity:0.7}
.lt-pcard-stat em{color:var(--lt-text-sub)}

/* 列表头 */
.lt-listhd{
  border-bottom:1px solid var(--lt-border-light);
  padding-bottom:12px;
  margin-bottom:4px;
}
.lt-listhd h1{
  font-size:20px;
  color:var(--lt-text);
  margin-bottom:6px;
}
.lt-listhd p{
  font-size:12px;
  color:var(--lt-text-mute);
  margin:0;
}
.lt-listhd p em{color:var(--lt-link);font-weight:600}

/* 面包屑 */
.lt-bc{
  font-size:12px;
  color:var(--lt-text-mute);
  margin-bottom:14px;
  padding-bottom:10px;
  border-bottom:1px solid var(--lt-border-light);
}
.lt-bc a{color:var(--lt-text-sub)}
.lt-bc span{margin:0 6px;color:var(--lt-text-mute)}
.lt-bc-current{color:var(--lt-text);font-weight:500}

/* 分页 */
.lt-pg{
  margin-top:24px;
  padding-top:20px;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  flex-wrap:wrap;
}
.lt-pg a,.lt-pg span{
  display:inline-flex;
  align-items:center;
  gap:3px;
  min-width:32px;
  height:32px;
  padding:0 10px;
  border:1px solid var(--lt-border);
  border-radius:3px;
  font-size:12px;
  color:var(--lt-text-sub);
  background:#fff;
  justify-content:center;
}
.lt-pg a:hover{border-color:var(--lt-primary);color:var(--lt-link);text-decoration:none}
.lt-pg .cur{background:var(--lt-primary);border-color:var(--lt-primary);color:#fff}
.lt-pg .dis{color:var(--lt-text-mute);background:#f8f8f8;cursor:not-allowed}

/* ====== 右侧 widgets ====== */
.lt-side{
  display:flex;
  flex-direction:column;
  gap:14px;
}
.lt-widget{
  background:var(--lt-bg-card);
  border:1px solid var(--lt-border);
  border-radius:4px;
  overflow:hidden;
}
.lt-widget-hd{
  background:var(--lt-widget-hd-bg);
  padding:8px 14px;
  font-size:13px;
  font-weight:600;
  color:var(--lt-text);
  border-bottom:1px solid var(--lt-border-light);
  display:flex;
  align-items:center;
  gap:6px;
}
.lt-widget-hd svg{color:var(--lt-primary)}
.lt-rank{
  padding:8px 14px 12px;
}
.lt-rank li{
  display:flex;
  align-items:flex-start;
  gap:8px;
  padding:5px 0;
  font-size:12px;
  line-height:1.5;
}
.lt-rank-n{
  flex-shrink:0;
  width:18px;
  height:18px;
  background:#e0e0e0;
  color:#fff;
  font-size:11px;
  font-weight:600;
  border-radius:2px;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-top:1px;
}
.lt-rank li:nth-child(1) .lt-rank-n{background:#e74c3c}
.lt-rank li:nth-child(2) .lt-rank-n{background:#e67e22}
.lt-rank li:nth-child(3) .lt-rank-n{background:#f39c12}
.lt-rank li a{
  color:var(--lt-text-sub);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.lt-rank li a:hover{color:var(--lt-link)}

.lt-cat-side{padding:6px 14px 12px}
.lt-cat-side li{
  padding:6px 0;
  border-bottom:1px dashed var(--lt-border-light);
}
.lt-cat-side li:last-child{border-bottom:none}
.lt-cat-side li a{
  color:var(--lt-text-sub);
  font-size:12px;
  display:flex;
  align-items:center;
  gap:6px;
}
.lt-cat-side li a:hover{color:var(--lt-link)}
.lt-cat-side li a svg{color:var(--lt-text-mute)}
.lt-cat-side li.on a{color:var(--lt-link);font-weight:600}

/* widget promo card */
.lt-widget-promo{padding:0;border:none;background:transparent}
.lt-promo-card{
  display:block;
  background:linear-gradient(135deg,#1e7adb,#5c8feb);
  color:#fff;
  padding:18px 16px;
  border-radius:4px;
  text-align:center;
}
.lt-promo-card:hover{
  text-decoration:none;
  color:#fff;
  background:linear-gradient(135deg,#1668c0,#3a78dd);
}
.lt-promo-card-alt{
  background:linear-gradient(135deg,#16a085,#27ae60);
}
.lt-promo-card-alt:hover{
  background:linear-gradient(135deg,#117a65,#229954);
}
.lt-promo-top{
  font-size:11px;
  opacity:0.85;
  margin-bottom:6px;
  letter-spacing:1px;
}
.lt-promo-title{
  font-size:18px;
  font-weight:700;
  margin-bottom:4px;
  color:#fff;
}
.lt-promo-desc{
  font-size:11px;
  opacity:0.9;
  line-height:1.5;
}

/* ====== 文章详情页 ====== */
.lt-page-post .lt-main{padding:20px 26px}
.lt-article{}
.lt-article-hd{
  border-bottom:1px solid var(--lt-border-light);
  padding-bottom:14px;
  margin-bottom:18px;
}
.lt-article-title{
  font-size:24px;
  color:var(--lt-text);
  margin-bottom:10px;
  line-height:1.4;
}
.lt-article-meta{
  font-size:12px;
  color:var(--lt-text-mute);
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
}
.lt-meta-author{color:#16a085;font-weight:500;display:inline-flex;align-items:center;gap:4px}
.lt-meta-sep{color:var(--lt-border)}
.lt-meta-tag{
  display:inline-flex;
  align-items:center;
  gap:3px;
  background:var(--lt-tag-bg);
  color:var(--lt-tag-text);
  padding:1px 8px;
  border-radius:2px;
  font-size:11px;
}
.lt-article-meta span{display:inline-flex;align-items:center;gap:4px}
.lt-article-body{
  font-size:14px;
  line-height:1.85;
  color:#444;
}
.lt-article-body h2{
  font-size:18px;
  margin:24px 0 10px;
  padding-bottom:8px;
  border-bottom:1px solid var(--lt-border-light);
  color:var(--lt-text);
}
.lt-article-body h3{
  font-size:15px;
  margin:18px 0 8px;
  color:var(--lt-text);
}
.lt-article-body p{margin:10px 0}
.lt-article-body ul,.lt-article-body ol{margin:10px 0;padding-left:24px}
.lt-article-body li{list-style:disc;margin:4px 0}
.lt-article-body ol li{list-style:decimal}
.lt-article-body strong{color:#222;font-weight:600}
.lt-article-body code{
  background:#f4f4f4;
  padding:1px 5px;
  border-radius:2px;
  font-size:13px;
  color:#c7254e;
}
.lt-article-body blockquote{
  border-left:3px solid var(--lt-primary);
  background:#f7faff;
  padding:10px 14px;
  margin:14px 0;
  color:var(--lt-text-sub);
}
.lt-article-body a{color:var(--lt-link)}
.lt-article-body a:hover{text-decoration:underline}
.lt-article-body img{
  max-width:100%;
  margin:12px 0;
  border:1px solid var(--lt-border);
  border-radius:3px;
}
.lt-article-ft{
  margin-top:24px;
  padding-top:14px;
  border-top:1px solid var(--lt-border-light);
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:12px;
}
.lt-article-ft-tags{display:flex;gap:6px;flex-wrap:wrap}
.lt-ft-tag{
  background:var(--lt-tag-bg);
  color:var(--lt-tag-text);
  padding:3px 10px;
  border-radius:2px;
  font-size:11px;
}
.lt-ft-tag:hover{text-decoration:none;background:#dceaf7}
.lt-article-ft-stat{
  display:flex;
  gap:14px;
  font-size:12px;
  color:var(--lt-text-mute);
}
.lt-article-ft-stat span{display:inline-flex;align-items:center;gap:4px}
.lt-article-ft-stat em{color:var(--lt-text-sub)}

.lt-related{
  margin-top:20px;
  background:#fafbfd;
  border:1px solid var(--lt-border-light);
  border-radius:4px;
  padding:12px 18px;
}
.lt-related-hd{
  font-size:13px;
  font-weight:600;
  color:var(--lt-text);
  display:flex;
  align-items:center;
  gap:6px;
  margin-bottom:8px;
}
.lt-related-hd svg{color:var(--lt-primary)}
.lt-related-list li{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:5px 0;
  font-size:12px;
  border-bottom:1px dashed var(--lt-border-light);
}
.lt-related-list li:last-child{border-bottom:none}
.lt-related-list li a{
  color:var(--lt-text-sub);
  flex:1;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.lt-related-list li time{
  color:var(--lt-text-mute);
  font-size:11px;
  margin-left:10px;
}

.lt-toc{padding:8px 14px 12px}
.lt-toc li{padding:3px 0;font-size:12px}
.lt-toc li a{color:var(--lt-text-sub)}
.lt-toc-3{padding-left:12px}

/* ====== 分类索引页 ====== */
.lt-cat-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:14px;
  padding-top:14px;
}
.lt-cat-card{
  display:flex;
  gap:14px;
  padding:16px;
  background:#fafbfd;
  border:1px solid var(--lt-border-light);
  border-radius:4px;
  text-decoration:none;
  color:var(--lt-text);
}
.lt-cat-card:hover{
  background:#f0f5fb;
  border-color:var(--lt-primary);
  text-decoration:none;
}
.lt-cat-card-icon{
  width:44px;
  height:44px;
  background:var(--lt-primary);
  color:#fff;
  border-radius:4px;
  display:flex;
  align-items:center;
  justify-content:center;
  flex-shrink:0;
}
.lt-cat-card-body h3{
  font-size:15px;
  color:var(--lt-text);
  margin-bottom:4px;
}
.lt-cat-card-body p{
  font-size:12px;
  color:var(--lt-text-sub);
  margin:0 0 6px;
  line-height:1.5;
}
.lt-cat-card-cnt{
  font-size:11px;
  color:var(--lt-primary);
  background:var(--lt-tag-bg);
  padding:1px 8px;
  border-radius:2px;
}

/* ====== 静态页 ====== */
.lt-static{
  background:#fff;
  border:1px solid var(--lt-border);
  border-radius:4px;
  padding:30px 36px;
  min-width:0;
}
.lt-404{text-align:center;padding:80px 36px}
.lt-404 h1{border:none;padding:0}
.lt-static h1{
  font-size:24px;
  margin-bottom:14px;
  padding-bottom:12px;
  border-bottom:2px solid var(--lt-primary);
}
.lt-static h2{
  font-size:18px;
  margin:24px 0 10px;
  color:var(--lt-text);
  padding-left:10px;
  border-left:3px solid var(--lt-primary);
}
.lt-static p{
  font-size:14px;
  line-height:1.85;
  color:var(--lt-text-sub);
  margin:10px 0;
}
.lt-static ul,.lt-static ol{margin:10px 0;padding-left:24px}
.lt-static li{list-style:disc;margin:4px 0;font-size:14px;color:var(--lt-text-sub)}
.lt-static a{color:var(--lt-link)}

/* download 页专属 */
.lt-dl-hero{
  background:linear-gradient(135deg,#1e7adb,#16a085);
  color:#fff;
  padding:30px 36px;
  margin:-30px -36px 24px;
  border-radius:4px 4px 0 0;
}
.lt-dl-hero h1{
  color:#fff;
  border:none;
  font-size:26px;
  padding:0;
  margin-bottom:8px;
}
.lt-dl-hero p{color:rgba(255,255,255,0.92);font-size:14px;margin:0}
.lt-dl-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:14px;
  margin:20px 0;
}
.lt-dl-card{
  background:#fafbfd;
  border:1px solid var(--lt-border);
  border-radius:4px;
  padding:18px;
  text-align:center;
}
.lt-dl-card-icon{
  width:50px;
  height:50px;
  background:var(--lt-primary);
  color:#fff;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  margin:0 auto 10px;
}
.lt-dl-card h3{font-size:16px;margin-bottom:8px}
.lt-dl-card p{font-size:13px;color:var(--lt-text-sub);margin:6px 0;text-align:left}
.lt-dl-card ul{text-align:left}
.lt-dl-card li{font-size:12px;color:var(--lt-text-sub);margin:4px 0}
.lt-dl-btn{
  display:inline-block;
  background:var(--lt-primary);
  color:#fff !important;
  padding:9px 22px;
  border-radius:3px;
  font-size:13px;
  margin-top:10px;
  text-decoration:none;
}
.lt-dl-btn:hover{background:var(--lt-primary-dark);color:#fff !important;text-decoration:none}
.lt-dl-step{
  background:#fafbfd;
  border-left:3px solid var(--lt-primary);
  padding:14px 18px;
  margin:12px 0;
  border-radius:0 3px 3px 0;
}
.lt-dl-step h3{font-size:14px;margin-bottom:6px;color:var(--lt-text)}
.lt-dl-step p{font-size:13px;line-height:1.7;color:var(--lt-text-sub);margin:4px 0}
.lt-dl-warn{
  background:#fff8e6;
  border:1px solid #ffd966;
  border-radius:3px;
  padding:14px 18px;
  margin:18px 0;
  font-size:13px;
  color:#7c5e00;
}
.lt-dl-warn strong{color:#704c00}
.lt-dl-faq{margin-top:20px}
.lt-dl-faq-item{
  border-bottom:1px dashed var(--lt-border-light);
  padding:12px 0;
}
.lt-dl-faq-item:last-child{border-bottom:none}
.lt-dl-faq-q{
  font-size:14px;
  font-weight:600;
  color:var(--lt-text);
  margin-bottom:6px;
}
.lt-dl-faq-a{
  font-size:13px;
  color:var(--lt-text-sub);
  line-height:1.7;
}

/* ====== Footer ====== */
.lt-footer{
  background:#fff;
  border-top:1px solid var(--lt-border);
  margin-top:30px;
  padding:24px 16px;
  text-align:center;
}
.lt-footer-inner{
  max-width:1200px;
  margin:0 auto;
}
.lt-footer-friends,.lt-footer-langs,.lt-footer-meta{
  margin:8px 0;
  font-size:12px;
  color:var(--lt-text-sub);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:center;
  gap:6px 14px;
}
.lt-footer-label{color:var(--lt-text-mute);margin-right:4px}
.lt-footer-friends a,.lt-footer-langs a,.lt-footer-meta a{
  color:var(--lt-text-sub);
  font-size:12px;
}
.lt-footer-friends a:hover,.lt-footer-langs a:hover,.lt-footer-meta a:hover{
  color:var(--lt-link);
  text-decoration:none;
}
.lt-footer-meta span{color:var(--lt-text-mute)}
.lt-footer-risk{
  margin:14px auto 8px;
  font-size:11px;
  color:var(--lt-text-mute);
  background:#fff8e6;
  border:1px solid #ffe6a7;
  padding:8px 14px;
  border-radius:3px;
  max-width:900px;
  text-align:left;
  line-height:1.7;
}
.lt-footer-risk strong{color:#7c5e00}
.lt-footer-copy{
  margin-top:10px;
  font-size:11px;
  color:var(--lt-text-mute);
  padding-top:10px;
  border-top:1px solid var(--lt-border-light);
}

/* ====== 404 ====== */
.lt-404-num{
  font-size:96px;
  color:var(--lt-primary);
  font-weight:700;
  font-family:Georgia,serif;
}
.lt-404 h1{font-size:24px;margin-bottom:10px}
.lt-404 p{color:var(--lt-text-sub);margin-bottom:24px}
.lt-btn-primary{
  display:inline-block;
  background:var(--lt-primary);
  color:#fff;
  padding:10px 24px;
  border-radius:3px;
}
.lt-btn-primary:hover{background:var(--lt-primary-dark);color:#fff;text-decoration:none}

/* ====== 响应式 ====== */
@media (max-width:1100px){
  .lt-page,.lt-page-static{grid-template-columns:60px 1fr}
  .lt-side{display:none}
  .lt-search{display:none}
}
@media (max-width:768px){
  .lt-page,.lt-page-static{grid-template-columns:1fr;padding:10px}
  .lt-rail{display:none}
  .lt-topnav{display:none}
  .lt-promobar-inner{font-size:11px;gap:6px}
  .lt-pb-text-light{display:none}
  .lt-cat-grid{grid-template-columns:1fr}
  .lt-dl-grid{grid-template-columns:1fr}
  .lt-pcard-title{font-size:15px}
  .lt-thumb-letter{width:40px;height:40px;font-size:18px}
  .lt-page-post .lt-main{padding:14px 16px}
  .lt-article-title{font-size:20px}
  .lt-static{padding:20px 16px}
  .lt-dl-hero{padding:20px 16px;margin:-20px -16px 16px}
  .lt-dl-hero h1{font-size:20px}
}