/* Original navigation layout, scoped to the redesigned homepage. */
.legacy-navigation [data-nav]{align-content:start}
.legacy-navigation{--navigation-height:94px;background:#fff;backdrop-filter:none}
.legacy-navigation .wrapper{width:min(1248px,calc(100% - 112px));margin-inline:auto}
.legacy-navigation button{color:inherit;background:transparent;border:0;padding:0}
.legacy-navigation .menu-container>.wrapper{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:28px;height:var(--navigation-height);position:relative}
.legacy-navigation .navigation-identity{display:flex;align-items:center;gap:24px;justify-self:start}
.legacy-navigation .navigation-trigger{display:flex;align-items:center;gap:6px;min-height:44px;white-space:nowrap;font-size:14px;flex-shrink:0}
.legacy-navigation ._logo{flex-shrink:0;width:190px}.legacy-navigation ._logo img{width:100%;height:auto}
.legacy-navigation .menu-container ._menu{display:flex;align-items:stretch;justify-content:center;gap:28px;flex:1;white-space:nowrap}
.legacy-navigation .menu-container ._menu li{position:relative;display:flex;align-items:center;font-size:15px}
.legacy-navigation .menu-container ._menu a,.legacy-navigation .menu-container ._menu button{display:flex;align-items:center;gap:6px;min-height:var(--navigation-height)}
.legacy-navigation .menu-container ._menu .active{color:var(--brand)}
.legacy-navigation .menu-container ._menu .active::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--brand)}
.legacy-navigation a:hover,.legacy-navigation button:hover{color:var(--brand)}
.legacy-navigation i{font-style:normal;color:var(--brand)}
.legacy-navigation .wx-e85c::before{content:"☰";font-size:16px}.legacy-navigation .wx-e6e7::before{content:"◎"}.legacy-navigation .wx-e61d::before{content:"↗";font-size:22px}
.legacy-navigation .menu-container .fz-e6421{display:inline-flex;align-items:center;justify-content:center;width:12px;height:18px;line-height:1;flex-shrink:0}
.legacy-navigation .menu-container .fz-e6421::before{content:"";width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:translateY(-2px) rotate(45deg)}
.legacy-navigation ._tool{display:flex;align-items:center;gap:20px;flex-shrink:0;font-size:13px;grid-column:3;justify-self:end}
.legacy-navigation ._tool>li{position:relative}.legacy-navigation ._tool>li>a{display:flex;align-items:center;gap:4px;min-height:44px}
.legacy-navigation ._tool ul{display:none;position:absolute;right:0;top:100%;width:160px;background:#fff;border:1px solid var(--line);box-shadow:0 8px 24px #14264214}
.legacy-navigation ._tool>li.is-language-open ul{display:block}
.legacy-navigation ._tool [data-lang]{padding:9px 12px;cursor:pointer}.legacy-navigation ._tool [data-lang].active,.legacy-navigation ._tool [data-lang]:hover{background:var(--brand);color:#fff}
.legacy-navigation .nav-close{display:none;align-items:center;justify-content:center;flex-shrink:0;width:44px;height:44px;font-size:28px;grid-column:3;justify-self:end}
.legacy-navigation.active .nav-close{display:flex}.legacy-navigation.active ._tool{display:none}
.legacy-navigation .nav-container{position:fixed;inset:var(--navigation-height) 0 0;background:linear-gradient(90deg,#f2f4f8 50%,#fff 50%);border-top:1px solid #e3e7ed}
.legacy-navigation .nav-container>.wrapper{display:grid;grid-template-columns:180px minmax(0,1fr);height:100%}
.legacy-navigation .nav-container ._menu{padding-block:30px;overflow:auto;background:#f2f4f8}
.legacy-navigation .nav-container ._menu li,.legacy-navigation .nav_tab li{position:relative}
.legacy-navigation .nav-container ._menu button,.legacy-navigation .nav-container ._menu a{display:block;text-align:left;padding:14px 30px 14px 0;width:100%;font-size:18px;line-height:1.5}
.legacy-navigation .nav-container ._menu .active,.legacy-navigation .nav_tab .active{font-weight:600;color:var(--brand)}
.legacy-navigation .wx-e68c{display:none;position:absolute;right:20px;top:50%;transform:translateY(-50%)}
.legacy-navigation .wx-e68c::before{content:"›";font-size:24px}.legacy-navigation li.active>.wx-e68c{display:block}
.legacy-navigation ._box{min-width:0;height:100%;background:#fff;border-left:1px solid #e3e7ed;overflow:auto}
.legacy-navigation [data-nav]{display:none;grid-template-columns:200px minmax(0,1fr);min-height:100%}
.legacy-navigation [data-nav].active{display:grid}.legacy-navigation [data-nav=xx]{grid-template-columns:1fr;padding-left:40px}
.legacy-navigation .nav_tab{padding:30px 24px;border-right:1px solid #e3e7ed;background:#fff}
.legacy-navigation .nav_tab button{display:block;width:100%;text-align:left;padding:12px 22px 12px 0;font-size:15px;line-height:1.5}
.legacy-navigation .nav_tab .wx-e68c{right:0}
.legacy-navigation ._r{padding:30px 0 30px 32px;min-width:0}.legacy-navigation [data-nav=xx] ._r{padding-left:0}
.legacy-navigation ._item{display:none}.legacy-navigation ._item.active{display:block}
.legacy-navigation ._item h2{font-size:23px;line-height:1.4;font-weight:600;color:var(--brand);margin-bottom:18px}
.legacy-navigation dl{display:flex;flex-wrap:wrap;column-gap:3%;row-gap:8px;margin:0;padding:18px 0 24px;border-bottom:1px solid #e3e7ed}
.legacy-navigation dt{width:100%;font-size:17px;margin-bottom:6px}.legacy-navigation dd{width:31.33%;min-width:0;margin:0;font-size:14px;line-height:2.1;color:#7a818b}
.legacy-navigation dd a{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
@media(max-width:1199px){.legacy-navigation .wrapper{width:calc(100% - 72px)}.legacy-navigation ._logo{width:165px}.legacy-navigation .menu-container>.wrapper{gap:25px}.legacy-navigation .menu-container ._menu{gap:17px}.legacy-navigation .menu-container ._menu li{font-size:13px}.legacy-navigation ._tool{gap:12px}.legacy-navigation .nav-container>.wrapper{grid-template-columns:155px minmax(0,1fr)}.legacy-navigation [data-nav]{grid-template-columns:160px minmax(0,1fr)}.legacy-navigation .nav_tab{padding-inline:18px}.legacy-navigation dd{width:48.5%}}
@media(max-width:1050px){.legacy-navigation .menu-container ._menu{gap:28px}.legacy-navigation .menu-container ._menu li:nth-child(n+2){display:none}.legacy-navigation .menu-container ._menu li{font-size:15px}}
@media(max-width:760px){.legacy-navigation{--navigation-height:74px}.legacy-navigation .wrapper{width:calc(100% - 40px)}.legacy-navigation ._logo{width:143px}.legacy-navigation .menu-container>.wrapper{gap:18px}.legacy-navigation .menu-container ._menu{gap:18px}.legacy-navigation ._tool{display:none}.legacy-navigation .nav-close{width:44px}.legacy-navigation .nav-container>.wrapper{width:100%;grid-template-columns:112px minmax(0,1fr)}.legacy-navigation .nav-container ._menu{padding:15px 12px 20px 20px}.legacy-navigation .nav-container ._menu button,.legacy-navigation .nav-container ._menu a{font-size:14px;padding:13px 0}.legacy-navigation .nav-container ._menu .wx-e68c{display:none}.legacy-navigation [data-nav],.legacy-navigation [data-nav=xx]{grid-template-columns:1fr;padding:0}.legacy-navigation .nav_tab{display:grid;grid-template-columns:1fr 1fr;align-content:start;gap:6px;padding:16px;border-right:0;border-bottom:1px solid #e3e7ed}.legacy-navigation .nav_tab button{font-size:12px;padding:8px 0}.legacy-navigation .nav_tab .wx-e68c{display:none}.legacy-navigation ._r,.legacy-navigation [data-nav=xx] ._r{padding:22px 16px}.legacy-navigation ._item h2{font-size:19px;margin-bottom:9px}.legacy-navigation dl{padding:15px 0 20px;row-gap:10px}.legacy-navigation dt{font-size:14px}.legacy-navigation dd{width:100%;font-size:12px;line-height:1.8}.legacy-navigation dd a{white-space:normal;overflow-wrap:anywhere}}
@media(max-width:1199px){.legacy-navigation .menu-container>.wrapper{gap:16px}.legacy-navigation .navigation-identity{gap:16px}.legacy-navigation .navigation-trigger{font-size:13px}}
@media(max-width:760px){.legacy-navigation .menu-container>.wrapper{display:flex;gap:16px}.legacy-navigation .navigation-identity{gap:14px}.legacy-navigation .menu-container ._menu{margin-left:auto;flex:0}.legacy-navigation .navigation-trigger{font-size:13px}.legacy-navigation .nav-close{margin-left:0}}
@media(max-width:380px){.legacy-navigation .menu-container>.wrapper{width:calc(100% - 32px)}}
@media(min-width:1200px) and (max-width:1280px){.legacy-navigation ._logo{width:174px}.legacy-navigation .navigation-identity{gap:18px}}

/* Keep the expanded navigation within its own scroll area and focus boundary. */
.legacy-navigation ._tool>li>.language-trigger{display:flex;align-items:center;gap:4px;min-height:44px;font-size:13px}
.legacy-navigation ._tool>li>a[aria-label="在线咨询"]{justify-content:center;min-width:44px}
.legacy-navigation ._tool ul{z-index:1;border-radius:var(--radius-card);padding:5px;box-shadow:0 8px 24px #14264214}
.legacy-navigation ._tool .language-option{display:block;width:100%;text-align:left;border-radius:4px;font-size:12px}
.legacy-navigation ._tool [data-lang][disabled]{color:var(--muted);background:transparent;cursor:default;opacity:.65}
.legacy-navigation .nav-close{border-radius:var(--radius-card)}
.legacy-navigation .nav-close:hover{background:var(--surface)}
.legacy-navigation ._box,.legacy-navigation .nav-container ._menu{overscroll-behavior:contain}
.legacy-navigation dd{color:var(--muted)}
.legacy-navigation .nav_tab button{min-height:44px}
.legacy-navigation .menu-container ._menu .nav-section-toggle{min-width:20px;padding-left:4px}
.legacy-navigation .nav-section-toggle svg{width:14px;height:14px}
.legacy-navigation .nav-section-toggle[aria-expanded=true] svg{transform:rotate(180deg)}
.legacy-navigation .nav-section-entry{display:inline-flex;align-items:center;gap:20px;min-height:44px;margin-bottom:18px;padding:8px 12px;border:1px solid var(--line);border-radius:4px;color:var(--brand);font-size:13px}
.legacy-navigation .nav-section-entry:hover{background:var(--surface);border-color:var(--brand)}
@media(min-width:1200px) and (max-width:1330px){.legacy-navigation .menu-container ._menu{gap:22px}.legacy-navigation .menu-container ._menu li{font-size:14px}}
@media(max-width:760px){.legacy-navigation.active .menu-container ._menu{display:none}.legacy-navigation.active .nav-close{margin-left:auto}.legacy-navigation .nav_tab button{font-size:13px}}