[data-site-navigation]{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","WenQuanYi Micro Hei",sans-serif;font-size:16px;line-height:1.65;color:#1e293b;text-align:left;margin:0;padding:0;position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,0.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid rgba(226,232,240,0.6);transition:all .3s ease}[data-site-navigation],[data-site-navigation] *{box-sizing:border-box}[data-site-navigation] a{text-decoration:none}[data-site-navigation] .container{max-width:1180px;margin:0 auto;padding:0 28px}[data-site-navigation].scrolled{background:rgba(255,255,255,0.98);box-shadow:0 4px 24px rgba(30,64,175,0.08)}[data-site-navigation] .header-inner{display:flex;align-items:center;gap:32px;height:72px}[data-site-navigation] .logo-wrap{display:flex;align-items:center;gap:12px;flex-shrink:0;text-decoration:none}[data-site-navigation] .logo-img{width:48px;height:48px;object-fit:contain;border-radius:8px}[data-site-navigation] .logo-text{display:flex;flex-direction:column;line-height:1.2}[data-site-navigation] .logo-name{font-size:20px;font-weight:800;color:#1e40af;letter-spacing:1px}[data-site-navigation] .logo-sub{font-size:11px;color:#64748b;letter-spacing:.5px}[data-site-navigation] .site-nav{display:flex;align-items:center;gap:4px;flex:1}[data-site-navigation] .nav-link{padding:6px 14px;border-radius:7px;font-size:14.5px;font-weight:500;color:#475569;cursor:pointer;transition:all .2s;white-space:nowrap;display:flex;align-items:center;gap:4px;text-decoration:none}[data-site-navigation] .nav-link:hover{background:#eff6ff;color:#1e40af}[data-site-navigation] .nav-link.is-active{background:#eff6ff;color:#1e40af;font-weight:600}[data-site-navigation] .arrow-icon{width:14px;height:14px;transition:transform .2s;flex-shrink:0}[data-site-navigation] .nav-dropdown{position:relative}[data-site-navigation] .nav-dropdown:hover .arrow-icon{transform:rotate(180deg)}[data-site-navigation] .nav-dropdown:hover .dropdown-panel{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}[data-site-navigation] .nav-dropdown.drop-active>.nav-link{background:#eff6ff;color:#1e40af;font-weight:600}[data-site-navigation] .dropdown-panel{position:absolute;top:calc(100% + 10px);left:50%;transform:translateX(-50%) translateY(-8px);width:280px;background:#fff;border-radius:14px;box-shadow:0 20px 60px rgba(30,64,175,0.14),0 4px 16px rgba(0,0,0,0.06);border:1px solid #e2e8f0;padding:10px;opacity:0;visibility:hidden;transition:all .22s ease}[data-site-navigation] .dropdown-panel::before{content:'';position:absolute;top:-6px;left:50%;transform:translateX(-50%);width:12px;height:12px;background:#fff;border-left:1px solid #e2e8f0;border-top:1px solid #e2e8f0;transform:translateX(-50%) rotate(45deg)}[data-site-navigation] .drop-item{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:10px;text-decoration:none;transition:all .18s}[data-site-navigation] .drop-item:hover{background:#eff6ff}[data-site-navigation] .drop-item .drop-icon{font-size:22px;flex-shrink:0}[data-site-navigation] .drop-item strong{display:block;font-size:14px;font-weight:600;color:#1e293b;line-height:1.3}[data-site-navigation] .drop-item small{display:block;font-size:12px;color:#94a3b8;margin-top:2px}[data-site-navigation] .header-phone{display:flex;align-items:center;gap:7px;flex-shrink:0;background:#1e40af;color:#fff;padding:8px 18px;border-radius:8px;font-size:14px;font-weight:600;text-decoration:none;transition:all .22s;letter-spacing:.3px}[data-site-navigation] .header-phone:hover{background:#1e3a8a;transform:translateY(-1px);box-shadow:0 6px 20px rgba(30,64,175,0.3)}[data-site-navigation] .hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px;margin-left:auto}[data-site-navigation] .hamburger span{display:block;width:22px;height:2px;background:#1e293b;border-radius:2px;transition:all .25s}[data-site-navigation] .hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}[data-site-navigation] .hamburger.open span:nth-child(2){opacity:0}[data-site-navigation] .hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}[data-site-navigation] .mobile-nav{display:none;flex-direction:column;background:#fff;max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s ease;padding:0}[data-site-navigation] .mobile-nav.open{max-height:500px;border-top:1px solid #e2e8f0;padding:12px 0}[data-site-navigation] .m-link{display:block;padding:12px 28px;font-size:15px;font-weight:500;color:#475569;text-decoration:none;transition:all .18s}[data-site-navigation] .m-link:hover{background:#f8fafc;color:#1e40af}[data-site-navigation] .m-phone{color:#1e40af;font-weight:600}@media (max-width:900px){[data-site-navigation] .site-nav,[data-site-navigation] .header-phone{display:none}[data-site-navigation] .hamburger{display:flex}[data-site-navigation] .mobile-nav{display:flex}[data-site-navigation] .header-inner{gap:0}}body{padding-top:72px}