.ad-hero{position:relative;display:flex;align-items:center;min-height:560px;padding:120px 0 90px;background:linear-gradient(135deg,#1a2538 0%,#1e3a5f 100%);color:#fff;overflow:hidden}
.ad-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;background-repeat:no-repeat}
.ad-hero-bg::after{content:"";position:absolute;inset:0;background:rgba(21,30,45,.6)}
.ad-hero-inner{position:relative;z-index:2}
.ad-crumb{font-size:14px;color:rgba(255,255,255,.75);display:flex;align-items:center;gap:8px;margin-bottom:18px;flex-wrap:wrap}
.ad-crumb a{color:rgba(255,255,255,.85);text-decoration:none}
.ad-crumb a:hover{color:#fff}
.ad-crumb-sep{opacity:.5}
.ad-title{font-size:36px;font-weight:700;line-height:1.4;margin-bottom:14px;max-width:85%}
.ad-summary{font-size:16px;color:rgba(255,255,255,.85);max-width:80%;line-height:1.9;margin-bottom:18px}
.ad-meta{display:flex;flex-wrap:wrap;gap:22px}
.ad-meta-item{display:inline-flex;align-items:center;gap:7px;font-size:14px;color:rgba(255,255,255,.8)}
.ad-article{padding:56px 0 80px;background:#fff}
.ad-wrap{display:grid;grid-template-columns:260px minmax(0,1fr);gap:40px;align-items:start}
.ad-sidebar{position:sticky;top:120px;display:flex;flex-direction:column;gap:18px}
.ad-side-card{background:var(--bg-gray);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px}
.ad-side-head{display:flex;align-items:center;gap:8px;font-size:16px;font-weight:600;color:var(--dark);margin-bottom:14px}
.ad-side-head svg{color:var(--primary-dark)}
.ad-side-nav{display:flex;flex-direction:column;gap:6px}
.ad-nav-item{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;border-radius:8px;color:var(--text);font-size:14px;transition:all var(--transition)}
.ad-nav-item:hover{background:#fff;color:var(--primary-dark)}
.ad-nav-active{background:var(--primary);color:#fff}
.ad-nav-active:hover{background:var(--primary);color:#fff}
.ad-nav-sub{padding-left:28px;font-size:13px}
.ad-toc{font-size:14px;max-height:420px;overflow-y:auto}
.ad-toc-loading{color:var(--text-light);font-size:13px}
.ad-toc-list{list-style:none}
.ad-toc-item{margin-bottom:4px}
.ad-toc-item a{display:block;padding:7px 12px;border-radius:6px;color:var(--text-muted);font-size:13px;transition:all var(--transition)}
.ad-toc-item a:hover{background:#fff;color:var(--primary-dark)}
.ad-toc-item a.ad-toc-current{background:var(--primary);color:#fff}
.ad-toc-h3 a{padding-left:26px}
.ad-toc-empty{color:var(--text-light);font-size:13px}
.ad-main{min-width:0}
.ad-summary-box{background:var(--bg-gray);border-left:4px solid var(--primary);border-radius:0 8px 8px 0;padding:20px 24px;margin-bottom:28px}
.ad-summary-box h4{font-size:15px;color:var(--primary-dark);margin-bottom:8px}
.ad-summary-box p{font-size:14px;color:var(--text);line-height:1.9}
.ad-body{font-size:15px;line-height:2.1;color:var(--text)}
.ad-body h2,.ad-body h3{color:var(--dark);margin:28px 0 14px;line-height:1.5}
.ad-body h2{font-size:22px}
.ad-body h3{font-size:18px}
.ad-body p{margin-bottom:16px}
.ad-body img{max-width:100%;border-radius:8px;margin:14px auto;-webkit-user-drag:none;user-select:none;-webkit-touch-callout:none}
.ad-body a{color:var(--primary-dark);text-decoration:underline}
.ad-body ul,.ad-body ol{padding-left:24px;margin-bottom:16px}
.ad-body blockquote{border-left:4px solid var(--primary);background:var(--bg-gray);padding:14px 20px;border-radius:0 8px 8px 0;margin-bottom:16px;color:var(--text-muted)}
.ad-tags{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:34px;padding-top:22px;border-top:1px solid var(--border)}
.ad-tags-label{font-size:14px;font-weight:600;color:var(--dark)}
.ad-tags a{display:inline-flex;padding:6px 16px;border-radius:999px;background:var(--bg-gray);color:var(--primary-dark);font-size:13px;transition:all var(--transition)}
.ad-tags a:hover{background:var(--primary);color:#fff}
.ad-nav{margin-top:34px}
.ad-nav-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.ad-nav-item{display:flex;flex-direction:column;gap:4px;padding:16px 20px;border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--bg-gray);color:var(--text);transition:all var(--transition)}
.ad-nav-item:hover{border-color:var(--primary);color:var(--dark)}
.ad-nav-prev{text-align:left}
.ad-nav-next{text-align:right}
.ad-nav-dir{font-size:13px;color:var(--primary-dark);font-weight:600}
.ad-nav-text{font-size:14px;color:var(--text);line-height:1.6}
.ad-nav-empty{visibility:hidden}
.ad-related{padding:64px 0;background:var(--bg-gray)}
.ad-related-alt{background:#fff}
.ad-related-head{margin-bottom:28px}
.ad-related-head h2{font-size:24px;font-weight:700;color:var(--dark);position:relative;padding-left:14px}
.ad-related-head h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--primary)}
.ad-products-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.ad-product-card{display:block;background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;color:var(--text);transition:box-shadow var(--transition),transform var(--transition)}
.ad-product-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);color:var(--text)}
.ad-product-img{height:150px;overflow:hidden;background:var(--bg-alt)}
.ad-product-img img{width:100%;height:100%;object-fit:cover;-webkit-user-drag:none;user-select:none;-webkit-touch-callout:none}
.ad-product-ph{width:100%;height:100%;display:flex;align-items:center;justify-content:center;color:var(--text-light)}
.ad-product-body{padding:14px 16px 16px}
.ad-product-body h3{font-size:15px;font-weight:600;color:var(--dark);margin-bottom:6px;line-height:1.5}
.ad-product-body p{font-size:13px;color:var(--text-muted);margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ad-product-more{font-size:13px;color:var(--primary-dark)}
.ad-articles-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.ad-article-item{display:flex;gap:16px;background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:16px;color:var(--text);transition:box-shadow var(--transition),transform var(--transition)}
.ad-article-item:hover{box-shadow:var(--shadow-md);transform:translateY(-3px);color:var(--text)}
.ad-article-img{width:130px;height:96px;flex-shrink:0;border-radius:8px;overflow:hidden;background:var(--bg-alt)}
.ad-article-img img{width:100%;height:100%;object-fit:cover;-webkit-user-drag:none;user-select:none;-webkit-touch-callout:none}
.ad-article-body{flex:1;min-width:0}
.ad-article-body h3{font-size:15px;font-weight:600;color:var(--dark);margin-bottom:6px;line-height:1.5}
.ad-article-body p{font-size:13px;color:var(--text-muted);margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ad-article-meta{display:flex;justify-content:space-between;font-size:13px;color:var(--text-light)}
.ad-article-meta span:last-child{color:var(--primary-dark)}
.ad-cta{background:linear-gradient(135deg,#1a4d3a 0%,#00b050 100%);padding:56px 0;color:#fff}
.ad-cta-inner{text-align:center}
.ad-cta-inner h2{font-size:28px;margin-bottom:10px}
.ad-cta-inner p{font-size:15px;opacity:.9;margin-bottom:26px}
.ad-cta-btn{display:inline-flex;align-items:center;padding:13px 40px;border-radius:999px;background:#fff;color:#1a4d3a;font-size:15px;font-weight:600;transition:transform var(--transition)}
.ad-cta-btn:hover{transform:translateY(-2px);color:#1a4d3a}
@media(max-width:1199px){
  .ad-products-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .ad-hero{padding:72px 0 56px;min-height:400px}
  .ad-title{font-size:26px;max-width:100%}
  .ad-summary{max-width:100%;font-size:14px}
  .ad-article{padding:36px 0 56px}
  .ad-wrap{grid-template-columns:1fr;gap:24px}
  .ad-sidebar{position:static;flex-direction:row;flex-wrap:wrap}
  .ad-side-card{flex:1;min-width:200px}
  .ad-body{font-size:15px}
  .ad-nav-grid{grid-template-columns:1fr}
  .ad-products-grid{grid-template-columns:1fr;gap:14px}
  .ad-articles-list{grid-template-columns:1fr}
}