/* 站点统一外壳：导航、下拉、面包屑、栏目卡片、翻页 */
.site-nav{position:sticky;top:0;z-index:9999;display:flex;align-items:center;gap:8px;padding:0 24px;height:56px;background:#0b1220;color:#fff;font-family:"Microsoft YaHei","Segoe UI",sans-serif;box-shadow:0 2px 10px rgba(0,0,0,.35)}
.site-nav .logo{display:flex;align-items:center;gap:8px;color:#fff;text-decoration:none;font-weight:700;letter-spacing:.04em;font-size:16px;white-space:nowrap;margin-right:12px}
.site-nav .logo-mark{width:40px;height:40px;object-fit:contain;flex:none;filter:drop-shadow(0 2px 5px rgba(0,0,0,.3))}
.site-nav .links{display:flex;align-items:center;gap:2px;margin-left:auto;height:100%}
.site-nav .links>a,.nav-item>.nav-link{display:flex;align-items:center;gap:5px;height:56px;padding:0 14px;color:#cbd5e1;text-decoration:none;font-size:14px;white-space:nowrap;border-bottom:2px solid transparent;transition:.18s}
.site-nav .links>a:hover,.nav-item>.nav-link:hover{color:#fff;background:rgba(255,255,255,.06)}
.site-nav .links>a.active,.nav-item.active>.nav-link{color:#fff;border-bottom-color:#F9A825}
.nav-item{position:relative;height:56px}
.nav-item>.nav-link{cursor:pointer}
.nav-item>.nav-link::after{content:"";width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;border-top:5px solid currentColor;opacity:.7}
.nav-drop{position:absolute;top:56px;right:0;min-width:250px;background:#0f172a;border:1px solid #1f2937;border-radius:12px;padding:8px;box-shadow:0 20px 50px rgba(0,0,0,.5);display:none;grid-template-columns:1fr;gap:2px}
.nav-drop.wide{grid-template-columns:1fr 1fr;min-width:470px}
.nav-item:hover .nav-drop,.nav-item:focus-within .nav-drop{display:grid}
.nav-drop a{display:flex;align-items:center;gap:8px;padding:9px 12px;border-radius:8px;color:#cbd5e1;text-decoration:none;font-size:13px;line-height:1.4}
.nav-drop a:hover{background:rgba(249,168,37,.12);color:#fff}
.nav-drop a.current{background:rgba(249,168,37,.18);color:#fff}
.nav-drop a .n{color:#F9A825;font-weight:700;font-size:12px;min-width:20px}
.lang-toggle{cursor:pointer;margin-left:10px;border:1px solid #334155;background:transparent;color:#93c5fd;padding:5px 14px;border-radius:999px;font-size:13px;font-weight:600;white-space:nowrap;transition:.2s;font-family:inherit}
.lang-toggle:hover{border-color:#60a5fa;color:#fff;background:rgba(96,165,250,.1)}
.nav-burger{display:none;margin-left:auto;background:transparent;border:1px solid #334155;color:#cbd5e1;border-radius:8px;padding:6px 10px;font-size:16px;cursor:pointer}

/* 首页主视觉按钮 */
.cta-row{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:30px}
.cta{display:inline-block;padding:11px 26px;border-radius:999px;text-decoration:none;font-size:14px;font-weight:700;border:1px solid rgba(255,255,255,.35);color:#fff;transition:.2s}
.cta:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}
.cta.primary{background:#F9A825;border-color:#F9A825;color:#1A1A1A}
.cta.primary:hover{background:#F57F17;border-color:#F57F17}

/* 面包屑 */
.crumb{max-width:1200px;margin:18px auto 10px;padding:0 8px;font-size:13px;color:#777}
.crumb a{color:#C62828;text-decoration:none}
.crumb a:hover{text-decoration:underline}
.crumb b{color:#1A1A1A}
.crumb span{margin:0 6px;color:#bbb}

/* 栏目入口卡片 */
.hub{max-width:1200px;margin:0 auto 24px;background:#fff;border-radius:16px;box-shadow:0 4px 24px rgba(0,0,0,.12);padding:36px 40px 40px}
.hub-title{font-size:24px;font-weight:700;color:#C62828;margin-bottom:6px}
.hub-sub{font-size:14px;color:#666;margin-bottom:22px}
.hub-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px}
.hub-card{display:flex;flex-direction:column;background:#F5F5F5;border-radius:14px;overflow:hidden;text-decoration:none;color:#1A1A1A;border:1px solid #e6e6e6;transition:.2s}
.hub-card:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(0,0,0,.16);border-color:#F9A825}
.hub-card .ph{height:150px;background:#fff;display:flex;align-items:center;justify-content:center;overflow:hidden;border-bottom:1px solid #ececec}
.hub-card .ph img{width:100%;height:100%;object-fit:contain;padding:12px;display:block}
.hub-card .ph.cover-img img{object-fit:cover;padding:0}
.hub-card .bd{padding:16px 18px 18px}
.hub-card .n{display:inline-block;font-size:11px;font-weight:700;color:#fff;background:#C62828;border-radius:5px;padding:2px 8px;margin-bottom:8px;letter-spacing:.06em}
.hub-card .n.y{background:#F57F17}
.hub-card .n.d{background:#1A1A1A;color:#F9A825}
.hub-card h3{font-size:16px;margin:0 0 6px;color:#1A1A1A;font-weight:700}
.hub-card p{font-size:12.5px;color:#666;margin:0;line-height:1.65}

/* 页内锚点条 */
.anchors{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:10px}
.anchors a{display:flex;align-items:center;gap:10px;padding:11px 14px;background:#F5F5F5;border-left:4px solid #C62828;border-radius:8px;color:#1A1A1A;text-decoration:none;font-size:13.5px;font-weight:600;transition:.18s}
.anchors a:hover{background:#eee;border-left-color:#F9A825}
.anchors a .n{color:#C62828;font-weight:700;font-size:12px}

/* 可点击的产品清单 */
.product-list-col li a{display:block;color:#1A1A1A;text-decoration:none}
.product-list-col li a:hover{color:#C62828;text-decoration:underline}

/* 数据条 */
.stat-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-top:24px}
.stat{background:#1A1A1A;border-radius:12px;padding:16px 18px}
.stat .v{font-size:24px;font-weight:700;color:#F9A825;line-height:1.2}
.stat .k{font-size:12px;color:rgba(255,255,255,.65);margin-top:4px}

/* 翻页 */
.pager{max-width:1200px;margin:0 auto 28px;display:flex;gap:12px;align-items:stretch}
.pager a{flex:1;display:flex;flex-direction:column;gap:3px;background:#fff;border:1px solid #e6e6e6;border-radius:12px;padding:14px 18px;text-decoration:none;transition:.2s}
.pager a:hover{border-color:#C62828;box-shadow:0 8px 20px rgba(0,0,0,.1)}
.pager a.next{text-align:right;align-items:flex-end}
.pager .lb{font-size:11px;color:#999;letter-spacing:.1em;text-transform:uppercase}
.pager .tx{font-size:15px;font-weight:700;color:#C62828}
.pager .sp{flex:1}

/* 页脚 */
.site-footer{max-width:1200px;margin:0 auto 28px;background:#1A1A1A;color:rgba(255,255,255,.7);padding:26px 32px;border-radius:16px;display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between}
.site-footer .brand{color:#F9A825;font-weight:700;font-size:15px}
.site-footer .tagline{font-size:13px;margin-top:5px}
.site-footer .contact{font-size:13px;line-height:1.9;text-align:right}
.site-footer .contact a{color:#93c5fd;text-decoration:none}

@media(max-width:900px){
  .site-nav{flex-wrap:wrap;height:auto;padding:10px 16px;gap:6px}
  .nav-burger{display:block}
  .site-nav .links{display:none;order:3;width:100%;flex-direction:column;align-items:stretch;gap:0;margin:6px 0 4px}
  .site-nav.open .links{display:flex}
  .site-nav .links>a,.nav-item>.nav-link{height:auto;padding:11px 6px;border-bottom:1px solid rgba(255,255,255,.06)}
  .nav-item{height:auto}
  .nav-drop,.nav-drop.wide{position:static;display:grid;grid-template-columns:1fr;min-width:0;background:transparent;border:0;box-shadow:none;padding:0 0 8px 14px}
  .nav-drop a{padding:8px 10px}
  .lang-toggle{margin-left:auto}
  .site-footer{flex-direction:column;align-items:flex-start}
  .site-footer .contact{text-align:left}
  .pager{flex-direction:column}
  .hub{padding:24px 20px 28px}
}