/* 由 news.html 内联 <style> 抽取（P2 改造） */
.page-hero{height:380px !important}@media (max-width:992px){.page-hero{height:340px !important}}@media (max-width:640px){.page-hero{height:300px !important}}

/* ==================== 分类筛选标签栏 ==================== */
.nb-tabs{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:6px 0}
.nb-tab{display:inline-flex;align-items:center;gap:5px;padding:8px 20px;border-radius:999px;border:1.5px solid var(--line);background:var(--bg);color:var(--text-2);font-size:14px;font-weight:600;cursor:pointer;transition:all .22s;white-space:nowrap}
.nb-tab:hover{color:var(--blue);border-color:var(--c-blue-500-a28);background:var(--blue-light)}
.nb-tab.active{color:var(--bg);background:linear-gradient(135deg,var(--blue),var(--blue-dark));border-color:transparent;box-shadow:0 4px 12px var(--line-focus)}
.nb-tabs-count{margin-left:auto;font-size:13px;color:var(--text-3);font-weight:500}

/* ==================== 焦点大图文章 ==================== */
.nb-featured{display:grid;grid-template-columns:1.2fr 1fr;gap:0;background:var(--bg);border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s}
.nb-featured:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.nb-featured-img{position:relative;display:block;overflow:hidden;background:var(--bg-alt)}
.nb-featured-img img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s}
.nb-featured:hover .nb-featured-img img{transform:scale(1.04)}
.nb-featured-badge{position:absolute;top:14px;left:14px;display:inline-block;font-size:12px;color:var(--bg);background:linear-gradient(135deg,var(--blue),var(--blue-dark));padding:4px 14px;border-radius:999px;letter-spacing:1px;font-weight:600;box-shadow:0 2px 8px rgba(0,122,255,.3)}
.nb-featured-content{padding:28px 30px;display:flex;flex-direction:column;justify-content:center}
.nb-featured-meta{display:flex;align-items:center;gap:0;margin-bottom:10px}
.nb-featured-title{margin:0 0 10px;font-size:22px;font-weight:800;line-height:1.4}
.nb-featured-title a{color:var(--blue-deep);text-decoration:none;transition:color .2s}
.nb-featured-title a:hover{color:var(--blue)}
.nb-featured-desc{font-size:14.5px;color:var(--text-2);line-height:1.75;margin:0 0 16px}
.nb-featured-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.nb-ftag{display:inline-block;font-size:12px;color:var(--text-3);background:var(--bg-alt);border:1px solid var(--line);padding:3px 10px;border-radius:6px}
.nb-featured-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--blue);text-decoration:none;transition:gap .2s}
.nb-featured-more:hover{gap:10px}

/* ==================== 文章卡片网格 ==================== */
.nb-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.nb-card{display:flex;flex-direction:column;background:var(--bg);border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--shadow-xs);transition:transform .25s,box-shadow .25s}
.nb-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:var(--c-blue-500-a28)}
.nb-card-img{display:block;overflow:hidden;aspect-ratio:3/2;background:var(--bg-alt)}
.nb-card-img img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s}
.nb-card:hover .nb-card-img img{transform:scale(1.05)}
.nb-card-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.nb-card-body .nb-meta{margin-bottom:8px}
.nb-card-body h3{margin:0 0 6px;font-size:16.5px;font-weight:700;line-height:1.5}
.nb-card-body h3 a{color:var(--blue-deep);text-decoration:none;transition:color .2s}
.nb-card-body h3 a:hover{color:var(--blue)}
.nb-card-body p{font-size:13.5px;color:var(--text-2);line-height:1.7;margin:0 0 12px;flex:1}
.nb-card-body .nb-detail{font-size:13px}

/* ==================== 筛选隐藏态 ==================== */
.nb-featured[data-hidden],.nb-card[data-hidden],.nb-item[data-hidden]{display:none}

/* ==================== 响应式适配 ==================== */
@media (max-width:768px){
  .nb-featured{grid-template-columns:1fr}
  .nb-featured-img{aspect-ratio:16/9}
  .nb-featured-content{padding:20px 22px}
  .nb-featured-title{font-size:19px}
  .nb-grid{grid-template-columns:1fr;gap:16px}
  .nb-tabs-count{margin-left:0;width:100%;margin-top:4px}
}
@media (max-width:560px){
  .nb-tab{padding:7px 16px;font-size:13px}
  .nb-featured-content{padding:16px 18px}
  .nb-featured-title{font-size:17px}
  .nb-featured-desc{font-size:13.5px}
}