/* YIHUA site-wide navigation, isolated from historical templates */
#yh-site-header{display:block!important;position:relative;z-index:700;background:#fff!important;border-bottom:1px solid #dbe7dc!important;padding:0!important;margin:0!important;width:100%;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif!important;color:#244936!important;box-sizing:border-box}
#yh-site-header *{box-sizing:border-box}
#yh-site-header .yh-nav-shell{max-width:1240px;margin:0 auto;padding:0 28px;min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:22px}
#yh-site-header .yh-brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;text-decoration:none!important;color:#245137!important;font-weight:850;font-size:21px;letter-spacing:.055em;line-height:1.1;padding:9px 0}
#yh-site-header .yh-brand img{display:block!important;position:static!important;max-width:38px!important;width:38px!important;height:38px!important;object-fit:contain!important;border:0!important}
#yh-site-header .yh-brand small{display:block;font-size:8px;letter-spacing:.135em;color:#809488;font-weight:800;margin-top:6px}
#yh-site-header .yh-nav-desktop{display:flex!important;align-items:center;justify-content:flex-end;gap:clamp(13px,2.1vw,29px);flex-wrap:nowrap;position:static!important;margin:0!important;padding:0!important;border:0!important;background:transparent!important;width:auto!important}
#yh-site-header .yh-nav-desktop>a,#yh-site-header .yh-product-menu>a{display:inline-flex;align-items:center;color:#254a36!important;font-size:13.5px!important;white-space:nowrap;font-weight:700!important;line-height:1.4!important;text-decoration:none!important;min-height:44px!important;padding:8px 0!important;border:0!important;background:transparent!important;text-transform:none!important;letter-spacing:0!important}
#yh-site-header .yh-nav-desktop a:hover,#yh-site-header .yh-nav-desktop a:focus-visible{text-decoration:underline!important;text-underline-offset:5px}
#yh-site-header .yh-nav-desktop>a.yh-contact-link{background:#27623e!important;color:#fff!important;border-radius:8px;padding:11px 15px!important;gap:5px;min-height:42px!important}
#yh-site-header .yh-product-menu{display:flex;gap:1px;align-items:center;position:relative}
#yh-site-header .yh-product-menu details{position:relative;margin:0;padding:0}
#yh-site-header .yh-product-menu summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:center;width:23px;min-height:42px;font-size:19px;color:#254a36}
#yh-site-header .yh-product-menu summary::-webkit-details-marker{display:none}
#yh-site-header .yh-submenu{position:absolute;right:-20px;top:100%;min-width:224px;display:grid;gap:2px;padding:10px;background:#fff;border:1px solid #dbe7dc;border-radius:12px;box-shadow:0 16px 36px #142d1925;z-index:800}
#yh-site-header .yh-submenu a{font-size:13px!important;text-decoration:none!important;font-weight:650!important;color:#254a36!important;padding:11px 13px!important;border-radius:7px;white-space:nowrap}
#yh-site-header .yh-submenu a:hover{background:#edf7ef!important;text-decoration:none!important}
#yh-site-header .yh-mobile-menu{display:none;position:relative;margin-left:auto}
#yh-site-header .yh-mobile-menu>summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:9px;border:1px solid #d6e5d9;border-radius:8px;padding:10px 12px;line-height:1.3;font-size:14px;color:#255438!important}
#yh-site-header .yh-mobile-menu>summary::-webkit-details-marker{display:none}
#yh-site-header .yh-mobile-menu nav{position:absolute;top:calc(100% + 12px);right:0;width:min(340px,calc(100vw - 28px));display:flex!important;flex-direction:column;align-items:stretch!important;padding:9px;border:1px solid #dceade;border-radius:11px;background:#fff!important;box-shadow:0 14px 35px #162b1a25;z-index:1000}
#yh-site-header .yh-mobile-menu nav a{display:block;color:#254a36!important;text-decoration:none!important;font-size:14px!important;padding:10px 12px!important;font-weight:700!important;border-radius:7px!important;background:#fff!important;text-transform:none!important}
#yh-site-header .yh-mobile-menu nav a:hover{background:#eff7f0!important}
#yh-site-header .yh-mobile-sub{margin:1px 0 4px 12px;border-left:2px solid #dce9de}
#yh-site-header .yh-mobile-sub a{font-weight:500!important;color:#566b5b!important;padding:7px 12px!important}
#yh-site-header a:focus-visible,#yh-site-header summary:focus-visible{outline:3px solid #edae45!important;outline-offset:2px}
.yh-site-footer-links-v1{display:flex!important;flex-wrap:wrap;gap:8px 18px;align-items:center;justify-content:center;padding:18px 10px 8px;margin:18px auto 0;border-top:1px solid #d4e3d6;max-width:1100px;text-align:center}
.yh-site-footer-links-v1 a{display:inline-block;text-decoration:none!important;color:#335e42!important;font:650 12px/1.4 Inter,system-ui,sans-serif!important}
.yh-site-footer-links-v1 a:hover{text-decoration:underline!important}
@media(max-width:990px){#yh-site-header .yh-nav-desktop{display:none!important}#yh-site-header .yh-mobile-menu{display:block}#yh-site-header .yh-nav-shell{padding:0 20px;min-height:70px}}
/* Existing stamp-OEM template has an intrinsic-width photo grid on mobile; prevent horizontal overflow without editing its content. */
@media(max-width:800px){main .photo-line{grid-template-columns:minmax(0,1fr)!important}main .photo-line>*{min-width:0!important}main .photo-line img{max-width:100%!important}}
@media(max-width:480px){#yh-site-header .yh-nav-shell{padding:0 15px;min-height:64px}#yh-site-header .yh-brand{font-size:19px}#yh-site-header .yh-brand img{width:34px!important;height:34px!important}#yh-site-header .yh-brand small{font-size:7px}#yh-site-header .yh-menu-label{font-size:13px}}