/* ==========================================================================
   遗留详情页桥接层 · 完全作用域化
   只定义 .bb-* 类，不触碰 body/a/button 等全局选择器，
   因此可安全注入仍在使用旧 style.css 的 100+ 详情页而不破坏原样式。
   ========================================================================== */
.bb-bridge{
  font-family:"PingFang SC","Microsoft YaHei","HarmonyOS Sans SC","Helvetica Neue",Arial,sans-serif;
  background:#071426;color:#E9F0FC;border-top:3px solid #0B5CFF;
  padding:38px 20px 30px;margin-top:0;box-sizing:border-box;
  -webkit-font-smoothing:antialiased;
}
.bb-bridge *,.bb-bridge *::before,.bb-bridge *::after{box-sizing:border-box}
.bb-inner{max-width:1200px;margin:0 auto}
.bb-top{display:flex;justify-content:space-between;align-items:flex-start;gap:28px;flex-wrap:wrap;padding-bottom:24px;border-bottom:1px solid rgba(255,255,255,.12)}
.bb-title{flex:1;min-width:280px}
.bb-eyebrow{display:block;font-size:11px;letter-spacing:.15em;text-transform:uppercase;color:#7FB6FF;font-weight:700;margin-bottom:10px}
.bb-title h2{margin:0;font-size:clamp(20px,2.4vw,28px);line-height:1.35;color:#fff;font-weight:700;letter-spacing:-.02em}
.bb-title p{margin:10px 0 0;font-size:14px;line-height:1.8;color:#A6B8D4;max-width:620px}
.bb-links{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.bb-links a{font-size:12px;color:#BBD3FF;border:1px solid rgba(255,255,255,.2);padding:5px 11px;border-radius:5px;text-decoration:none}
.bb-links a:hover{background:rgba(255,255,255,.1);color:#fff}
.bb-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;padding:24px 0}
.bb-card{background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.13);border-radius:12px;padding:20px;display:flex;flex-direction:column}
.bb-card.bb-primary{background:rgba(11,92,255,.16);border-color:rgba(120,170,255,.5)}
.bb-tag{font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:#7FB6FF;font-weight:800}
.bb-card h3{margin:10px 0 8px;font-size:16px;color:#fff;font-weight:700}
.bb-card p{margin:0;font-size:12.5px;line-height:1.75;color:#A6B8D4;flex:1}
.bb-card a.bb-btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;margin-top:16px;min-height:40px;padding:9px 16px;border-radius:7px;background:#0B5CFF;color:#fff;font-size:13.5px;font-weight:700;text-decoration:none}
.bb-card a.bb-btn:hover{background:#0842C4}
.bb-card.bb-primary a.bb-btn{background:#fff;color:#0B4BD0}
.bb-card.bb-primary a.bb-btn:hover{background:#EAF1FF}
.bb-card a.bb-btn svg{width:15px;height:15px}
.bb-facts{display:flex;gap:18px;flex-wrap:wrap;padding:18px 0;border-top:1px solid rgba(255,255,255,.12);font-size:12px;color:#8CA4C7}
.bb-facts span{display:inline-flex;align-items:center;gap:6px}
.bb-facts svg{width:13px;height:13px;color:#4BD3A2}
.bb-facts a{color:#BBD3FF;text-decoration:none}
.bb-facts a:hover{color:#fff}
.bb-legal{font-size:11.5px;line-height:1.8;color:#7489A9;padding-top:14px;border-top:1px solid rgba(255,255,255,.09)}
.bb-legal a{color:#9FC0FF;text-decoration:none}
.bb-float{position:fixed;right:18px;bottom:18px;z-index:9998;display:flex;flex-direction:column;gap:8px;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif}
.bb-float a.bb-fmain{display:inline-flex;align-items:center;gap:8px;background:#0B5CFF;color:#fff;padding:11px 17px;border-radius:100px;font-size:13.5px;font-weight:700;text-decoration:none;box-shadow:0 10px 28px rgba(11,92,255,.36)}
.bb-float a.bb-fmain:hover{background:#0842C4}
.bb-float a.bb-ftel{display:inline-flex;align-items:center;gap:7px;background:#fff;color:#17243C;border:1px solid #E1E8F3;padding:8px 14px;border-radius:100px;font-size:12px;font-weight:700;text-decoration:none;box-shadow:0 6px 18px rgba(8,24,56,.14)}
.bb-float svg{width:15px;height:15px}
@media (max-width:900px){
  .bb-cards{grid-template-columns:1fr}
  .bb-top{flex-direction:column;gap:18px}
}
@media (max-width:640px){
  .bb-bridge{padding:28px 16px 24px}
  .bb-float{right:10px;bottom:64px}
  .bb-float a.bb-ftel{display:none}
  .bb-facts{gap:10px}
}
@media print{.bb-bridge,.bb-float{display:none}}