/* V4.3: unified public header on homepage and all PHP subpages */
.site-header{position:sticky!important;top:0;z-index:80;background:#fff!important;border-bottom:1px solid #e4edf5;box-shadow:0 4px 22px #082d5710;padding:0 22px;color:#12395e}
.site-header .nav-inner{max-width:1400px;width:100%;margin:auto;min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.site-header .site-brand{display:flex;align-items:center;gap:12px;color:#0a3159!important;text-decoration:none;min-width:0;flex-shrink:0}
.site-header .site-brand img{max-width:120px;max-height:48px;object-fit:contain}
.site-header .site-brand-text{display:flex;flex-direction:column;gap:5px;min-width:0}
.site-header .site-brand strong{font-size:24px;line-height:1.05;font-weight:900;letter-spacing:-.4px;white-space:nowrap}
.site-header .site-brand small{font-size:12px;line-height:1.2;color:#67819a;font-weight:400;white-space:nowrap}
.site-header .site-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.site-header .site-nav a{color:#12395e;text-decoration:none;font-size:14px;font-weight:750;white-space:nowrap;padding:10px 10px;border-radius:9px;line-height:1.2}
.site-header .site-nav a:hover,.site-header .site-nav a[aria-current=page]:not(.hotline){background:#eaf5ff;color:#086db6}
.site-header .site-nav .hotline{background:#ed1737;color:white!important;padding:14px 18px;border-radius:11px;font-size:14px}
.site-header .mobile-toggle{display:none;border:0;background:#eaf5ff;color:#084d83;border-radius:9px;padding:10px 13px;font-size:21px;cursor:pointer}
@media(max-width:1120px){.site-header .site-brand strong{font-size:20px}.site-header .site-nav a{font-size:12px;padding:9px 6px}.site-header .site-nav .hotline{padding:12px 10px}}
@media(max-width:900px){.site-header{padding:0 15px}.site-header .nav-inner{min-height:68px;position:relative}.site-header .mobile-toggle{display:block;margin-left:auto}.site-header .site-nav{display:none;position:absolute;top:100%;left:-15px;right:-15px;background:#fff;box-shadow:0 15px 30px #082d5725;padding:12px 16px;flex-direction:column;align-items:stretch;gap:2px}.site-header .site-nav.open{display:flex}.site-header .site-nav a{font-size:14px;padding:12px 14px}.site-header .site-nav .hotline{text-align:center}}
@media(max-width:480px){.site-header .site-brand strong{font-size:17px}.site-header .site-brand small{font-size:10px}.site-header .site-brand img{max-height:38px}.site-header .nav-inner{min-height:62px}}