:root{--shell-ease:cubic-bezier(.48,.11,.56,.82)}
.site-header,.site-header *,.site-footer,.site-footer *{box-sizing:border-box}
.shell-container{width:83.333333%;max-width:none;margin-right:auto;margin-left:auto}
.site-header{position:fixed;z-index:9999;top:0;left:0;width:100%;height:74px;background:transparent;color:#fff;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;transition:height .3s var(--shell-ease),box-shadow .3s var(--shell-ease)}
.site-header::before{content:"";position:absolute;inset:0;background:#fff;transform:translateY(-101%);transition:transform .3s var(--shell-ease)}
.site-header.scrolled{height:64px;color:#222;box-shadow:0 2px 18px rgba(0,0,0,.09)}
.site-header.scrolled::before{transform:translateY(0)}
.site-header.site-header--solid{color:#222;box-shadow:0 1px 12px rgba(0,0,0,.06)}
.site-header.site-header--solid::before{transform:translateY(0)}
.site-header.site-header--solid .brand span,.site-header.site-header--solid .nav-phone{border-color:#ddd}
.site-header.site-header--solid .main-nav a:hover,.site-header.site-header--solid .main-nav a.active{color:#e71c2c;opacity:1}
.site-header-spacer{height:74px}
.shell-solid-page .site-header{color:#222}
.shell-solid-page .site-header::before{transform:translateY(0)}
.shell-solid-page .site-header .brand span{border-color:#ddd}
.shell-solid-page .site-header .nav-phone{border-color:#ddd}
.shell-solid-page{padding-top:74px}
.site-header .nav-wrap{position:relative;z-index:2;height:100%;display:flex;align-items:center;justify-content:space-between}
.site-header .brand{height:100%;display:flex;align-items:center;gap:16px;color:inherit;text-decoration:none}
.site-header .brand img{display:block;width:92px;height:46px;max-width:none;object-fit:contain;object-position:left center;transition:width .3s var(--shell-ease),height .3s var(--shell-ease)}
.site-header .brand span{padding-left:16px;border-left:1px solid rgba(255,255,255,.45);color:inherit;font-size:12px;line-height:1.45;white-space:nowrap;transition:border-color .3s,color .3s}
.site-header.scrolled .brand img{width:78px}
.site-header.scrolled .brand span{border-color:#ddd}
.site-header .main-nav{display:flex;align-items:center;gap:clamp(36px,3.3vw,64px);color:inherit;font-size:16px}
.site-header .main-nav a{color:inherit;text-decoration:none;white-space:nowrap;transition:color .2s,opacity .2s}
.site-header .main-nav a:hover{opacity:.62}
.site-header.scrolled .main-nav a:hover,.site-header.scrolled .main-nav a.active{color:#e71c2c;opacity:1}
.site-header .nav-item{position:relative;display:flex;height:100%;align-items:center}
.site-header .nav-service-toggle{display:flex;margin:0;padding:0;border:0;background:none;color:inherit;cursor:pointer;align-items:center;gap:7px;font:inherit;white-space:nowrap;transition:color .2s,opacity .2s}
.site-header .nav-service-toggle:hover{opacity:.62}
.site-header .nav-service-toggle i{width:6px;height:6px;margin-top:-3px;border-right:1px solid currentColor;border-bottom:1px solid currentColor;transform:rotate(45deg);transition:transform .25s}
.site-header .nav-services.open .nav-service-toggle i,.site-header .nav-services:hover .nav-service-toggle i,.site-header .nav-services:focus-within .nav-service-toggle i{margin-top:3px;transform:rotate(225deg)}
.site-header .nav-service-toggle.active{color:#e71c2c}
.site-header .nav-submenu{position:absolute;top:calc(100% + 8px);left:50%;display:block;min-width:176px;padding:10px;border:1px solid rgba(0,0,0,.07);border-radius:16px;background:rgba(255,255,255,.94);color:#222;box-shadow:0 22px 55px rgba(0,0,0,.17);opacity:0;visibility:hidden;transform:translate(-50%,14px) scale(.97);transform-origin:50% 0;backdrop-filter:blur(15px);-webkit-backdrop-filter:blur(15px);transition:opacity .22s,transform .28s var(--shell-ease),visibility .22s}
.site-header .nav-submenu::before{content:"";position:absolute;top:-6px;left:50%;width:12px;height:12px;border-top:1px solid rgba(0,0,0,.07);border-left:1px solid rgba(0,0,0,.07);background:rgba(255,255,255,.96);transform:translateX(-50%) rotate(45deg)}
.site-header .nav-services.open .nav-submenu,.site-header .nav-services:hover .nav-submenu,.site-header .nav-services:focus-within .nav-submenu{opacity:1;visibility:visible;transform:translate(-50%,0)}
.site-header .nav-submenu a{position:relative;display:flex;padding:12px 13px;border-radius:10px;color:#333!important;font-size:13px;line-height:1.5;text-align:left;align-items:center;justify-content:space-between;transition:background .25s,color .25s,opacity .2s,transform .25s}
.site-header .nav-submenu a::before{content:"";width:5px;height:5px;margin-right:11px;border-radius:50%;background:#d6d6d6;flex:0 0 auto;transition:background .25s,transform .25s}
.site-header .nav-submenu a::after{content:"→";margin-left:auto;color:#aaa;font:12px/1 Arial,sans-serif;opacity:0;transform:translateX(-5px);transition:opacity .25s,transform .25s,color .25s}
.site-header .nav-submenu a:hover,.site-header .nav-submenu a.active{background:#171717;color:#fff!important;opacity:1;transform:translateX(2px)}
.site-header .nav-submenu a:hover::before,.site-header .nav-submenu a.active::before{background:#e71c2c;transform:scale(1.25)}
.site-header .nav-submenu a:hover::after,.site-header .nav-submenu a.active::after{color:#fff;opacity:1;transform:none}
.site-header .nav-phone{margin-left:10px;padding-left:22px;border-left:1px solid rgba(255,255,255,.45)}
.site-header.scrolled .nav-phone{border-color:#ddd}
.site-header .menu-button{display:none;width:42px;padding:8px;border:0;background:none;color:inherit;cursor:pointer}
.site-header .menu-button i{display:block;height:2px;margin:6px 0;background:currentColor;transition:transform .3s var(--shell-ease),opacity .2s}
.site-header .sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}

.site-footer{margin:0;padding:55px 0 18px;background:#1d1d1d;color:#777;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.65}
.site-footer a{color:inherit;text-decoration:none}
.site-footer .footer-grid{display:grid;grid-template-columns:34% 66%}
.site-footer .footer-brand{display:grid;grid-template-columns:92px minmax(180px,1fr);grid-template-rows:auto auto;column-gap:26px;align-content:start;justify-content:start;padding-right:clamp(26px,3vw,54px);border-right:1px solid #333}
.site-footer .footer-brand strong{grid-column:1/-1;margin:0 0 48px;color:#fff;font-size:14px;line-height:1.25}
.site-footer .footer-brand strong::after{content:"";display:block;width:88px;height:2px;margin-top:46px;background:#555}
.site-footer .footer-brand b{color:#fff;font-size:30px;letter-spacing:.02em}
.site-footer .footer-brand img{grid-column:1;grid-row:2;display:block;width:92px;max-width:100%;align-self:center}
.site-footer .footer-brand span{grid-column:2;grid-row:2;align-self:center;font-size:14px;line-height:1.8}
.site-footer .footer-brand span a{color:#fff;font-size:24px;font-weight:600;line-height:1.25;white-space:nowrap}
.site-footer .footer-links{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:22px;padding-left:48px}
.site-footer .footer-links h3{margin:0 0 14px;color:#bbb;font-size:16px}
.site-footer .footer-links a,.site-footer .footer-links p{display:block;margin:6px 0;font-size:13px}
.site-footer .footer-links h3>a{margin:0;color:#bbb;font-size:inherit;font-weight:inherit}
.site-footer .footer-links a:hover{color:#fff}
.site-footer .copyright{margin-top:40px;padding-top:18px;border-top:1px solid #292929;font-size:11px}

@media(min-width:1920px){
  .site-header,.site-header.scrolled{height:calc(4.4vw - 7.5px)}
  .site-header-spacer{height:calc(4.4vw - 7.5px)}
  .site-header .brand{gap:calc(1vw - 2px)}
  .site-header .brand img,.site-header.scrolled .brand img{width:calc(5.55vw - 9.5px);height:calc(2.78vw - 5px)}
  .site-header .brand span{padding-left:calc(1vw - 2px);font-size:calc(.72vw - 1.6px)}
  .site-header .main-nav{gap:calc(4vw - 8px);font-size:calc(.95vw - 2px)}
  .site-header .nav-phone{margin-left:calc(.625vw - 1px);padding-left:calc(1.35vw - 2.4px);font-size:calc(.95vw - 2px)}
  .site-footer{padding:2.865vw 0 .938vw}
  .site-footer .footer-brand{grid-template-columns:4.792vw minmax(9.375vw,1fr);column-gap:1.354vw;padding-right:2.813vw}
  .site-footer .footer-brand strong{margin-bottom:2.5vw;font-size:.729vw}
  .site-footer .footer-brand strong::after{width:4.583vw;height:.104vw;margin-top:2.396vw}
  .site-footer .footer-brand b{font-size:1.563vw}
  .site-footer .footer-brand img{width:4.792vw}
  .site-footer .footer-brand span{font-size:.729vw}
  .site-footer .footer-brand span a{font-size:1.25vw}
  .site-footer .footer-links{gap:1.302vw;padding-left:2.865vw}
  .site-footer .footer-links h3{margin-bottom:.729vw;font-size:.833vw}
  .site-footer .footer-links a,.site-footer .footer-links p{margin:.313vw 0;font-size:.677vw}
  .site-footer .copyright{margin-top:2.083vw;padding-top:.938vw;font-size:.573vw}
}

@media(max-width:1200px){
  .shell-container{width:calc(100% - 30px)}
  .site-header{height:64px}
  .site-header-spacer{height:64px}
  .shell-solid-page{padding-top:64px}
  .site-header .brand img,.site-header.scrolled .brand img{width:76px;height:42px}
  .site-header .brand span{display:none}
  .site-header .menu-button{position:relative;z-index:4;display:block}
  .site-header .main-nav{position:fixed;inset:0;display:flex!important;width:100%;height:100dvh;padding:90px 10vw 45px;background:rgba(18,18,18,.97);color:#eee;flex-direction:column;justify-content:center;align-items:center;gap:0;opacity:0;transform:translateY(-100%);pointer-events:none;transition:transform .3s var(--shell-ease),opacity .3s var(--shell-ease)}
  .site-header .main-nav.open{opacity:1;transform:translateY(0);pointer-events:auto}
  .site-header .main-nav a,.site-header.scrolled .main-nav a{display:block;width:100%;padding:7px 0;border:0;color:#eee;text-align:center;font-size:25px;line-height:40px}
  .site-header .nav-item{display:block;width:100%;height:auto;text-align:center}
  .site-header .nav-service-toggle{width:100%;padding:7px 0;color:#eee;justify-content:center;font-size:25px;line-height:40px}
  .site-header .nav-service-toggle i{width:8px;height:8px}
  .site-header .nav-submenu{position:static;min-width:0;max-height:0;padding:0;background:transparent;box-shadow:none;color:#aaa;opacity:0;visibility:hidden;overflow:hidden;transform:none;transition:max-height .3s,opacity .25s,visibility .25s}
  .site-header .nav-submenu::before{display:none}
  .site-header .nav-services.open .nav-submenu{max-height:145px;padding:3px 0 7px;opacity:1;visibility:visible;transform:none}
  .site-header .nav-submenu a,.site-header.scrolled .nav-submenu a{padding:2px 0;border-radius:0;color:#aaa!important;font-size:16px;line-height:32px;text-align:center;justify-content:center}
  .site-header .nav-submenu a::before,.site-header .nav-submenu a::after{display:none}
  .site-header .nav-submenu a:hover,.site-header .nav-submenu a.active{background:transparent;color:#fff!important}
  .site-header .nav-phone,.site-header.scrolled .nav-phone{margin:13px 0 0;padding:13px 0 0;border:0;border-top:1px solid rgba(255,255,255,.18);font-size:15px!important}
  .site-header .menu-button[aria-expanded="true"]{color:#fff}
  .site-header .menu-button[aria-expanded="true"] i:nth-child(1){transform:translateY(8px) rotate(45deg)}
  .site-header .menu-button[aria-expanded="true"] i:nth-child(2){opacity:0}
  .site-header .menu-button[aria-expanded="true"] i:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
  body.nav-open{overflow:hidden}
  .site-footer .footer-grid{grid-template-columns:1fr}
  .site-footer .footer-brand{grid-template-columns:84px minmax(160px,1fr);margin-bottom:38px;padding-right:0;border-right:0}
  .site-footer .footer-brand img{width:84px}
  .site-footer .footer-brand b{font-size:25px}
  .site-footer .footer-brand span a{font-size:20px}
  .site-footer .footer-links{padding-left:0}
}

@media(max-width:640px){
  .site-footer{padding-top:42px}
  .site-footer .footer-brand{grid-template-columns:76px minmax(0,1fr);column-gap:20px}
  .site-footer .footer-brand strong{margin-bottom:36px}
  .site-footer .footer-brand strong::after{width:70px;margin-top:32px}
  .site-footer .footer-brand img{width:76px}
  .site-footer .footer-brand span a{font-size:17px;white-space:normal}
  .site-footer .footer-links{grid-template-columns:repeat(2,1fr);gap:28px 40px}
  .site-footer .footer-links>div:last-child{grid-column:1/-1}
}