/* ============================================================================
   SIT 英特丽 — 文章详情页两栏版式（移植自 tncxny NE 版，落地为品牌蓝 #004098）
   仅 view_article.htm 引用；类名独立，不影响 layout.css / 其它页面。
   ========================================================================== */
.sit-art{--accent:#004098;--accent-d:#013075}
.sit-art,.sit-art *{box-sizing:border-box}

/* 顶部阅读进度条 */
.reading-bar{
  position:fixed;left:0;top:0;height:3px;width:0;z-index:1200;pointer-events:none;
  background:linear-gradient(90deg,#004098,#3f79d6);
  box-shadow:0 1px 6px rgba(0,64,152,.4);transition:width .12s linear;
}

/* —— 页头蓝色横幅 —— */
/* margin-top 顶回固定头部底下（抵消 body 的 padding-top:100px/59px），
   让蓝底垫在透明头部的白色导航字后面，避免"反白"（同旧 .inside-banner 机制） */
.page-hd{position:relative;overflow:hidden;background:var(--accent);color:#fff;margin-top:-100px}
.page-hd::before{content:"";position:absolute;inset:0;opacity:.12;pointer-events:none;
  background-image:linear-gradient(#fff 1px,transparent 1px),linear-gradient(90deg,#fff 1px,transparent 1px);
  background-size:42px 42px}
.page-hd::after{content:"";position:absolute;top:-34%;right:-6%;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.18),transparent 65%);pointer-events:none}
.page-hd .commonweb{position:relative;z-index:2}
.page-hd__inner{padding:134px 0 46px}  /* 100px 头部 + 34px 视觉留白 */
.page-hd__eyebrow{display:inline-flex;align-items:center;gap:9px;
  font-family:'Courier New',monospace;font-size:12px;letter-spacing:.16em;color:#BCD4FF}
.page-hd__eyebrow::before{content:"";width:24px;height:1px;background:#BCD4FF;display:inline-block}
.page-hd h1{font-size:34px;font-weight:700;letter-spacing:-.01em;line-height:1.28;margin:14px 0 0;color:#fff;max-width:920px}
.page-hd__crumb{display:inline-flex;align-items:center;flex-wrap:wrap;gap:4px;margin-top:24px;font-size:13px;
  background:rgba(255,255,255,.12);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  padding:9px 18px;border-radius:99px;color:#D7E5FF}
.page-hd__crumb a{color:#D7E5FF;text-decoration:none;transition:color .2s}
.page-hd__crumb a:hover{color:#fff}
.page-hd__crumb .sep{opacity:.55;margin:0 2px}
.page-hd__crumb .current{color:#fff}

/* —— 灰底两栏 —— */
.art-shell{background:#F5F7FB}
.art-wrap{padding:38px 0 72px}
.art-back{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;font-weight:600;color:#5A6B7E;text-decoration:none;margin-bottom:22px;transition:color .2s}
.art-back:hover{color:var(--accent)}
.art-back svg{width:15px;height:15px;transition:transform .2s}
.art-back:hover svg{transform:translateX(-3px)}
.art-grid{display:grid;grid-template-columns:minmax(0,1fr) 350px;gap:38px;align-items:start}

/* 正文主区 */
.art-main{background:#fff;border:1px solid #EAEFF5;border-radius:22px;padding:44px;box-shadow:0 10px 30px rgba(11,26,46,.04)}
.art-tagrow{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-bottom:18px}
.art-tag{font-size:12px;font-weight:700;color:var(--accent);background:rgba(0,64,152,.08);border:1px solid rgba(0,64,152,.18);padding:5px 13px;border-radius:99px}
.art-metarow{display:flex;flex-wrap:wrap;gap:16px;font-size:12.5px;color:#9AA8B8}
.art-metarow span{display:inline-flex;align-items:center;gap:5px}
.art-metarow svg{width:14px;height:14px}
.art-h1{font-size:28px;font-weight:800;color:#0B1A2E;line-height:1.34;margin:0 0 24px;letter-spacing:-.01em}

.author-card{display:flex;align-items:center;gap:13px;background:#F6F8FB;border:1px solid #EEF2F7;border-radius:16px;padding:14px 18px;margin-bottom:30px}
.author-card__ava{width:42px;height:42px;border-radius:50%;flex:none;background:rgba(0,64,152,.1);color:var(--accent);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px}
.author-card__name{font-size:14px;font-weight:700;color:#33455A}
.author-card__sub{font-size:11.5px;color:#9AA8B8;margin-top:2px}

.art-banner{border-radius:16px;overflow:hidden;aspect-ratio:16/9;margin-bottom:30px;border:1px solid #EEF2F7;background:#F1F4F9}
.art-banner img{width:100%;height:100%;object-fit:cover}

/* 正文富文本 */
.article-body{font-size:15.5px;color:#46586D;line-height:1.9}
.article-body p{margin:0 0 18px;line-height:1.9;color:#46586D}
.article-body h2{font-size:23px;font-weight:700;color:#0B1A2E;line-height:1.35;margin:40px 0 16px}
.article-body h3{font-size:18.5px;font-weight:700;color:#0B1A2E;line-height:1.4;margin:32px 0 12px}
.article-body h4{font-size:16.5px;font-weight:700;color:#0B1A2E;margin:24px 0 10px}
.article-body img{max-width:100%;height:auto;border-radius:12px;margin:10px 0}
.article-body a{color:var(--accent);text-decoration:none}
.article-body a:hover{text-decoration:underline}
.article-body strong,.article-body b{color:#0B1A2E;font-weight:700}
.article-body ul,.article-body ol{padding-left:1.2em;margin:0 0 18px}
.article-body li{margin:6px 0;line-height:1.85}
.article-body blockquote{margin:18px 0;padding:14px 20px;border-left:3px solid var(--accent);background:#F6F8FB;border-radius:0 10px 10px 0;color:#33455A}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14px}
.article-body th,.article-body td{border:1px solid #EEF2F7;padding:10px 14px;text-align:left}
.article-body th{background:#F6F8FB;color:#0B1A2E;font-weight:600}
.article-body p:empty{display:none}

/* —— 分享 / 打印条 —— */
.share-bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-top:40px;padding-top:24px;border-top:1px solid #EEF2F7}
.share-bar__note{font-size:11.5px;color:#9AA8B8;max-width:58%;line-height:1.6}
.share-bar__btns{display:flex;gap:9px;flex-wrap:wrap}
.btn-pill{display:inline-flex;align-items:center;gap:7px;cursor:pointer;font-family:inherit;font-size:13px;font-weight:600;
  color:#46586D;background:#F6F8FB;border:1px solid #E2E9F2;border-radius:99px;padding:8px 16px;transition:border-color .2s,color .2s,background .2s}
.btn-pill:hover{border-color:var(--accent);color:var(--accent);background:#fff}
.btn-pill svg{width:14px;height:14px;flex:none}
.btn-pill.is-ok{background:#ECFAF1;border-color:#BBE8CC;color:#1B9E54}
.share-toast{position:fixed;left:50%;bottom:42px;transform:translateX(-50%) translateY(10px);
  background:#0A1726;color:#fff;font-size:13.5px;padding:11px 20px;border-radius:99px;
  box-shadow:0 14px 36px rgba(4,12,22,.4);opacity:0;pointer-events:none;z-index:2000;
  transition:opacity .25s,transform .25s}
.share-toast.is-on{opacity:1;transform:translateX(-50%) translateY(0)}

/* 上一篇 / 下一篇 */
.art-prevnext{margin-top:28px;display:flex;flex-direction:column;gap:10px}
.art-prevnext a,.art-prevnext span.none{font-size:13.5px;color:#5A6B7E;text-decoration:none;transition:color .2s}
.art-prevnext a:hover{color:var(--accent)}
.art-prevnext b{color:#9AA8B8;font-weight:600;margin-right:6px}

/* —— 右侧栏 —— */
.art-aside{position:sticky;top:96px;display:flex;flex-direction:column;gap:22px}
.side-contact{position:relative;overflow:hidden;background:linear-gradient(135deg,var(--accent),var(--accent-d));color:#fff;border-radius:20px;padding:26px}
.side-contact::after{content:"";position:absolute;bottom:-34px;right:-34px;width:150px;height:150px;border-radius:50%;background:rgba(140,180,255,.22)}
.side-contact h3{font-size:17px;font-weight:700;margin:0 0 9px;position:relative}
.side-contact > p{font-size:12.5px;color:#CFE0FF;line-height:1.7;margin:0 0 18px;position:relative}
.side-contact__row{display:flex;align-items:center;gap:12px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.08);border-radius:13px;padding:11px 14px;text-decoration:none;margin-bottom:11px;position:relative;transition:background .2s}
.side-contact__row:last-child{margin-bottom:0}
.side-contact__row:hover{background:rgba(255,255,255,.17)}
.side-contact__ico{width:34px;height:34px;border-radius:9px;flex:none;background:rgba(255,255,255,.13);display:flex;align-items:center;justify-content:center;color:#fff}
.side-contact__ico svg{width:16px;height:16px}
.side-contact__k{font-size:10px;color:#A9C4F2;line-height:1}
.side-contact__v{font-size:14px;font-weight:700;margin-top:3px;color:#fff;word-break:break-all}

.sidecard{background:#fff;border:1px solid #EAEFF5;border-radius:20px;padding:24px}
.sidecard__h{font-size:16px;font-weight:800;color:#0B1A2E;margin:0 0 16px;display:flex;align-items:center;gap:9px}
.sidecard__h::before{content:"";width:4px;height:16px;border-radius:3px;background:var(--accent)}
.rec-item{display:flex;gap:14px;align-items:flex-start;padding:14px 0;border-bottom:1px solid #F0F3F7}
.rec-item:last-child{border-bottom:0;padding-bottom:0}
.rec-item:first-child{padding-top:0}
.rec-item__thumb{width:74px;height:74px;border-radius:13px;overflow:hidden;flex:none;background:#F1F4F9;border:1px solid #EEF2F7;display:block}
.rec-item__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.rec-item:hover .rec-item__thumb img{transform:scale(1.07)}
.rec-item__cat{font-size:10px;font-weight:700;color:var(--accent);background:#EAF1FD;padding:2px 8px;border-radius:5px}
.rec-item__t{display:block;font-size:13px;font-weight:600;color:#33455A;line-height:1.5;margin:8px 0 0;text-decoration:none;
  overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.rec-item:hover .rec-item__t{color:var(--accent)}
.rec-item__d{font-size:10.5px;color:#9AA8B8;margin-top:6px;display:block}

/* —— 平板 / 手机 —— */
/* body 的固定头部占位 <1024 时降为 59px，页头负边距与上内边距同步 */
@media (max-width:1023px){
  .page-hd{margin-top:-59px}
  .page-hd__inner{padding:90px 0 38px}
}
@media (max-width:980px){
  .art-grid{grid-template-columns:1fr;gap:26px}
  .art-aside{position:static;flex-direction:row;flex-wrap:wrap}
  .art-aside > *{flex:1;min-width:260px}
  .page-hd h1{font-size:28px}
  .art-main{padding:32px 26px}
}
@media (max-width:640px){
  .page-hd__inner{padding:82px 0 30px}
  .page-hd h1{font-size:23px}
  .art-wrap{padding:24px 0 48px}
  .art-main{padding:26px 20px;border-radius:18px}
  .art-h1{font-size:23px}
  .art-aside{flex-direction:column}
  .share-bar__note{max-width:100%}
}