/* ===== AISoBrand Article Detail - Unified Template CSS ===== */
/* Based on Chengying structure, adapted with AisoBrand colors */
/* v=20260907a */

:root{
  --primary:#D4743E;
  --primary-light:#E88B5A;
  --primary-dark:#B85E2E;
  --dark:#1A1A2E;
  --dark-2:#2d2d5a;
  --bg:#FFF9F5;
  --gray:#888;
  --gray-light:#eee;
  --gray-dark:#555;
  --nav-h:58px;
}

/* ===== Reset & Base ===== */
*{margin:0;padding:0;box-sizing:border-box}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--dark);
  line-height:1.9;font-size:17px;padding-top:var(--nav-h);
  text-wrap:pretty;overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none}

/* ===== Article Layout (fallback; sidebar SSI overrides with !important) ===== */
.article-layout{
  display:grid;grid-template-columns:280px 1fr;gap:32px;align-items:start;
  max-width:1280px;margin:0 auto;padding:40px 24px 0;
}

/* ===== Article Body (main content container) ===== */
.article-body,.article-container,.article-wrap{
  max-width:none;margin:0;padding:0 0 80px;
}

/* ===== Featured Image / Cover ===== */
.article-featured-img{
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  border-radius:16px;padding:60px 40px;margin-bottom:40px;text-align:center;
}
.article-featured-img .emoji{font-size:72px;display:block;margin-bottom:16px}
.article-featured-img h1{color:#fff;font-size:30px;line-height:1.4;font-weight:700}

.article-cover{
  width:100%;aspect-ratio:16/9;background:linear-gradient(135deg,var(--dark),var(--primary));
  border-radius:16px;margin-bottom:40px;display:flex;align-items:center;justify-content:center;overflow:hidden;
}
.article-cover-inner{text-align:center;color:#fff;padding:40px}
.cover-emoji{font-size:60px;margin-bottom:16px}
.cover-text{font-size:20px;font-weight:700;line-height:1.4}

/* ===== Article Header (Chengying-style) ===== */
.article-header{margin-bottom:40px;border-bottom:1px solid var(--gray-light);padding-bottom:28px}
.article-category{
  display:inline-block;background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff;padding:6px 16px;border-radius:20px;font-size:13px;font-weight:700;margin-bottom:16px;letter-spacing:.5px;
}
.article-title{font-size:30px;font-weight:700;color:var(--dark);line-height:1.4;margin-bottom:16px;text-wrap:balance}

/* ===== Article Meta ===== */
.article-meta{
  display:flex;align-items:center;gap:12px;color:var(--gray);font-size:14px;
  margin-bottom:32px;padding-bottom:16px;border-bottom:1px solid var(--gray-light);flex-wrap:wrap;
}
.article-meta span{margin-right:16px}
.article-meta .author{color:var(--primary);font-weight:600}
.article-meta .date::before{content:"\00b7";margin-right:8px}

/* ===== Article Content Typography ===== */
.article-content h2{
  font-size:24px;font-weight:700;color:var(--dark);margin:40px 0 16px;
  padding-left:14px;border-left:4px solid var(--primary);line-height:1.5;text-wrap:pretty;
}
.article-content h3{font-size:20px;font-weight:600;color:var(--dark);margin:28px 0 12px;text-wrap:pretty}
.article-content h4{font-size:17px;font-weight:700;color:var(--dark);margin:24px 0 10px}
.article-content p{margin-bottom:18px;color:#333;text-wrap:pretty}
.article-content ul,.article-content ol{margin:16px 0 20px 24px}
.article-content li{margin-bottom:10px;color:#333}
.article-content strong{color:var(--dark);font-weight:700}
.article-content em{color:var(--primary);font-style:normal;font-weight:600}
.article-content a{
  color:var(--primary);text-decoration:none;border-bottom:1px solid rgba(212,116,62,.2);
  transition:color .2s,border-color .2s;
}
.article-content a:hover{color:var(--primary-light);border-color:var(--primary-light)}

/* Images / Figures */
.article-content figure{margin:32px 0;text-align:center}
.article-content img{
  max-width:100%;height:auto;border-radius:12px;
  box-shadow:0 4px 24px rgba(0,0,0,.08);cursor:zoom-in;
  transition:transform .2s,box-shadow .2s;
}
.article-content img:hover{transform:translateY(-2px);box-shadow:0 8px 32px rgba(0,0,0,.12)}
.article-content figcaption{color:var(--gray);font-size:14px;margin-top:12px;text-align:center;line-height:1.6}

/* Table wrapper */
.article-content .table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:24px 0}
.article-content table{min-width:100%;border-collapse:collapse}
.article-content th,.article-content td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--gray-light)}
.article-content th{color:var(--primary);font-weight:600;font-size:14px;white-space:nowrap}
.article-content td{color:#333;font-size:14px}

/* ===== Content Boxes ===== */
.highlight-box{background:var(--bg);border-left:4px solid var(--primary);padding:20px 24px;margin:28px 0;border-radius:0 8px 8px 0}
.highlight-box p{margin:0}
.tip-box{background:linear-gradient(135deg,rgba(212,116,62,0.06),rgba(232,139,90,0.06));padding:20px 24px;margin:28px 0;border-radius:8px}
.case-box{background:#f8f9fa;border-left:4px solid var(--dark);padding:20px 24px;margin:28px 0;border-radius:0 8px 8px 0}
.quote-box{border-left:4px solid var(--primary);padding:20px 24px;margin:28px 0;font-size:20px;color:var(--gray-dark);font-style:italic;background:#fafafa}

.blockquote{background:#fff;border-left:4px solid var(--primary);padding:20px 24px;margin:28px 0;border-radius:0 12px 12px 0;box-shadow:0 2px 12px rgba(0,0,0,0.06)}
.blockquote p{font-size:16px;color:var(--dark);font-weight:500;margin:0}

/* Info / Warning / Key-point (Chengying-style adapted to light theme) */
.info-box{background:linear-gradient(135deg,var(--dark),var(--dark-2));color:#fff;padding:28px;border-radius:16px;margin:28px 0}
.info-box h3,.info-box-title{color:var(--primary-light);margin-bottom:14px;font-size:17px}
.info-box p{color:rgba(255,255,255,0.85);margin-bottom:12px;font-size:15px}
.info-box p:last-child{margin-bottom:0}

.warning-box{background:rgba(255,71,87,0.06);border:1px solid rgba(255,71,87,0.2);border-radius:12px;padding:24px;margin:28px 0}
.warning-box-title{font-weight:700;color:#FF6B6B;margin-bottom:12px;font-size:15px}

.key-point{background:linear-gradient(135deg,#f8f9fa,#fff);border:1px solid rgba(212,116,62,0.15);border-radius:12px;padding:24px;margin:32px 0}
.key-point-title{font-weight:700;color:var(--primary);margin-bottom:12px;font-size:15px}
.key-point p{color:#333;margin-bottom:0}

.quote-style{font-style:italic;border-left:3px solid var(--primary)}
.tip-style{border-left:3px solid var(--primary)}

/* Callout (chain-brand-content-occupation style) */
.callout{background:#f8f9fa;border-left:4px solid var(--primary);padding:20px 24px;margin:28px 0;border-radius:0 8px 8px 0}
.callout.insight{background:linear-gradient(135deg,rgba(212,116,62,0.06),rgba(232,139,90,0.06));border-left:4px solid var(--primary)}
.callout p{margin:0}

/* ===== Data / Stats ===== */
.data-box{background:linear-gradient(135deg,var(--dark),var(--dark-2));color:#fff;padding:28px 32px;border-radius:12px;margin:28px 0;text-align:center}
.data-box .data-number,.data-box .number{font-size:42px;font-weight:700;color:var(--primary-light);display:block;line-height:1.2}
.data-box .label{font-size:16px;opacity:0.85;margin-top:8px;display:block}

.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:28px 0}
.stat-card{background:#fff;border-radius:16px;padding:24px 16px;text-align:center;box-shadow:0 2px 12px rgba(0,0,0,0.06)}
.stat-num{font-size:36px;font-weight:800;color:var(--primary);line-height:1;margin-bottom:8px}
.stat-label{font-size:13px;color:var(--gray);font-weight:500}

/* ===== Node Grid / Steps ===== */
.node-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin:28px 0}
.node-card{background:#fff;border-radius:12px;padding:20px;box-shadow:0 2px 8px rgba(0,0,0,0.06);border-top:3px solid var(--primary)}
.node-card .tag{display:inline-block;background:var(--primary);color:#fff;font-size:12px;font-weight:700;padding:3px 10px;border-radius:12px;margin-bottom:8px}
.node-card h4{font-size:15px;color:var(--dark);margin-bottom:6px}
.node-card p{font-size:14px;color:var(--gray-dark);margin:0}

.steps{display:flex;flex-direction:column;gap:16px;margin:28px 0}
.step{background:#fff;border-radius:12px;padding:20px 24px;box-shadow:0 2px 8px rgba(0,0,0,0.04);border-left:3px solid var(--primary)}
.step h4{font-size:16px;color:var(--dark);margin-bottom:8px}
.step p{font-size:15px;color:#444;margin:0}

/* ===== CTA Sections ===== */
.cta-box,.cta-section{
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  border-radius:16px;padding:40px;text-align:center;margin:48px 0;
}
.cta-box h3,.cta-section h2,.cta-section h3{color:#fff;font-size:22px;margin-bottom:12px;border:none;padding:0}
.cta-box p,.cta-section p{color:rgba(255,255,255,0.9);margin-bottom:20px;font-size:16px}
.cta-btn,.cta-button{
  display:inline-block;background:#fff;color:var(--primary);padding:14px 36px;
  border-radius:50px;font-weight:700;font-size:16px;text-decoration:none;
  transition:transform .2s,box-shadow .2s;
}
.cta-btn:hover,.cta-button:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(212,116,62,0.4)}
.cta-provider{font-size:12px;color:rgba(255,255,255,0.7);margin-top:12px}
.tagline{font-size:13px;color:rgba(255,255,255,0.7);margin-top:12px}

/* ===== FAQ ===== */
.faq-section{margin-top:40px;padding-top:24px;border-top:1px solid var(--gray-light)}
.faq-section h3{font-size:20px;font-weight:700;color:var(--dark);margin-bottom:24px}
.faq-item{background:#fff;border:1px solid var(--gray-light);border-radius:10px;padding:20px 24px;margin-bottom:12px}
.faq-item h4{color:var(--dark);font-size:17px;margin-bottom:8px}
.faq-item p{color:var(--gray-dark);font-size:15px;margin:0}
.faq-question{font-weight:700;color:var(--dark);margin-bottom:8px}
.faq-answer{color:var(--gray-dark);font-size:15px}

/* ===== Tags ===== */
.tags,.article-tags{margin-top:40px;padding-top:24px;border-top:1px solid var(--gray-light)}
.tags .tag,.article-tags span{
  display:inline-block;background:#f0f0f0;color:var(--gray-dark);
  padding:5px 14px;border-radius:20px;font-size:13px;margin:4px 6px 4px 0;
}

/* ===== Article Navigation ===== */
.article-nav{display:flex;justify-content:space-between;gap:16px;margin-top:40px;padding-top:28px;border-top:1px solid var(--gray-light)}
.article-nav a{
  flex:0 1 calc(50% - 8px);display:flex;flex-direction:column;gap:6px;
  padding:20px 24px;background:#fff;border:1px solid var(--gray-light);
  border-radius:12px;text-decoration:none;transition:all .3s ease;min-height:44px;
}
.article-nav a:hover{border-color:rgba(212,116,62,0.25);background:rgba(212,116,62,0.03);transform:translateY(-2px)}
.article-nav a.nav-next{text-align:right;align-items:flex-end}
.article-nav .nav-arrow{font-size:18px;color:var(--primary);font-weight:700}
.article-nav .nav-label{font-size:13px;color:var(--gray);text-transform:uppercase;letter-spacing:.5px}
.article-nav .nav-title{font-size:15px;color:var(--dark);font-weight:600;line-height:1.4}
.article-nav a:hover .nav-title{color:var(--primary)}
.article-nav a:only-child{margin-left:auto}

/* ===== Lightbox ===== */
.lightbox-modal,.lightbox-overlay{
  display:none;position:fixed;inset:0;background:rgba(0,0,0,0.92);
  z-index:9999;justify-content:center;align-items:center;padding:20px;overscroll-behavior:contain;
}
.lightbox-modal.active,.lightbox-overlay.active{display:flex}
.lightbox-modal img,.lightbox-overlay img{max-width:90%;max-height:85vh;border-radius:8px;box-shadow:0 20px 60px rgba(0,0,0,0.4)}
.lightbox-close{
  position:fixed;top:20px;right:30px;color:#fff;font-size:40px;cursor:pointer;z-index:10000;
  min-width:44px;min-height:44px;display:flex;align-items:center;justify-content:center;line-height:1;
}
.lightbox-close:hover{color:var(--primary-light)}

/* ===== Responsive ===== */
@media(min-width:769px) and (max-width:1024px){
  .article-layout{grid-template-columns:240px 1fr;gap:24px}
  .article-featured-img h1,.article-title{font-size:26px}
  .article-content h2{font-size:22px}
  .article-content h3{font-size:19px}
  .info-box,.key-point,.warning-box{padding:20px}
  .cta-box,.cta-section{padding:32px 24px}
}
@media(max-width:768px){
  :root{--nav-h:56px}
  body{line-height:1.9;font-size:16px}
  .article-layout{grid-template-columns:1fr;gap:0;padding:0 16px}
  .article-body,.article-container,.article-wrap{padding:0 0 60px}
  .article-featured-img{padding:40px 24px;margin-bottom:28px}
  .article-featured-img h1,.article-title{font-size:22px;line-height:1.35}
  .article-header{margin-bottom:28px;padding-bottom:20px}
  .article-category{font-size:12px;padding:5px 12px;margin-bottom:12px}
  .article-meta{font-size:13px;gap:8px;margin-bottom:28px;padding-bottom:16px}
  .article-content h2{font-size:19px;margin:36px 0 16px;padding-left:12px}
  .article-content h3{font-size:16px;margin:24px 0 10px}
  .article-content p{font-size:15px;margin-bottom:16px;line-height:1.9}
  .article-content li{font-size:15px;margin-bottom:8px}
  .stat-grid{grid-template-columns:1fr}
  .node-grid{grid-template-columns:1fr}
  .article-nav{flex-direction:column;gap:12px}
  .article-nav a{padding:16px 18px;flex:1 1 100%}
  .article-nav a.nav-next{text-align:left;align-items:flex-start}
  .article-nav .nav-title{font-size:14px}
  .cta-box,.cta-section{padding:28px 20px;margin:32px 0}
  .cta-box h3,.cta-section h3{font-size:18px}
  .cta-btn,.cta-button{padding:12px 24px;font-size:15px;display:block;text-align:center}
  .faq-item{padding:16px}
  .tags .tag,.article-tags span{font-size:12px;padding:5px 12px}
  .lightbox-close{top:12px;right:16px;font-size:32px}
  .info-box,.key-point,.warning-box{padding:16px;margin:20px 0}
  .article-content .table-wrap{margin:16px -16px}
  .article-content th,.article-content td{padding:10px 12px;font-size:13px}
}