/* 龙蜕 · 统一站点头部样式 */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(7,8,13,0.82);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(212,175,103,0.18);
}
.sh-inner{
  max-width:1180px;margin:0 auto;
  display:flex;align-items:center;gap:24px;
  padding:14px 22px;
}
.sh-logo{
  font-family:var(--font-title,serif);
  font-size:24px;letter-spacing:6px;
  color:var(--gold,#d4af67);text-decoration:none;
  font-weight:600;white-space:nowrap;
}
.sh-nav{display:flex;gap:28px;flex:1;}
.sh-nav-extra{display:none;}
.sh-link{
  color:var(--text-sub,#9aa0a6);
  font-size:15px;text-decoration:none;
  position:relative;padding:4px 0;
  transition:color .25s;
}
.sh-link:hover{color:var(--text-main,#e6e6e6);}
.sh-link.active{color:var(--gold,#d4af67);}
.sh-link.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;
  height:2px;background:var(--gold,#d4af67);
  box-shadow:0 0 8px rgba(212,175,103,0.5);
}
.sh-actions{display:flex;align-items:center;gap:12px;}
.sh-search{
  background:none;border:1px solid rgba(212,175,103,0.25);
  color:var(--gold,#d4af67);width:34px;height:34px;border-radius:999px;
  font-size:18px;cursor:pointer;line-height:1;transition:all .25s;
}
.sh-search:hover{background:rgba(212,175,103,0.1);box-shadow:0 0 12px rgba(212,175,103,0.25);}
.sh-account{
  color:var(--text-sub,#9aa0a6);font-size:13px;text-decoration:none;
  padding:6px 4px;transition:color .25s;white-space:nowrap;
}
.sh-account:hover{color:var(--gold,#d4af67);}
.sh-btn{
  font-size:13px;padding:8px 18px;border-radius:999px;
  text-decoration:none;white-space:nowrap;transition:all .25s;
}
.sh-btn-gold{
  background:linear-gradient(135deg,var(--gold-deep,#9c7a3b),var(--gold,#d4af67));
  color:#1a1408;font-weight:600;
  box-shadow:0 0 16px rgba(212,175,103,0.28);
}
.sh-btn-gold:hover{filter:brightness(1.08);}
.sh-btn-ghost{
  border:1px solid rgba(212,175,103,0.4);
  color:var(--gold,#d4af67);
}
.sh-btn-ghost:hover{background:rgba(212,175,103,0.1);}
.sh-toggle{
  display:none;background:none;border:none;color:var(--gold,#d4af67);
  font-size:22px;cursor:pointer;
}
@media (max-width:760px){
  .sh-toggle{display:block;margin-left:auto;}
  .sh-nav{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;gap:0;
    background:rgba(7,8,13,0.97);
    border-bottom:1px solid rgba(212,175,103,0.18);
    max-height:0;overflow:hidden;transition:max-height .3s ease;
  }
  .sh-nav.open{max-height:340px;visibility:visible;}
  .sh-nav:not(.open){visibility:hidden;}
  .sh-link{padding:14px 22px;border-bottom:1px solid rgba(255,255,255,0.05);}
  .sh-link.active::after{display:none;}
  .sh-nav-extra{display:flex;flex-direction:column;gap:12px;padding:14px 22px;border-top:1px solid rgba(255,255,255,0.08);}
  .sh-nav-extra .sh-account{font-size:15px;padding:0;}
  .sh-actions{display:none;}
}