.elementor-154 .elementor-element.elementor-element-1d504e09{--display:flex;--min-height:80px;--flex-direction:row;--container-widget-width:calc( ( 1 - var( --container-widget-flex-grow ) ) * 100% );--container-widget-height:100%;--container-widget-flex-grow:1;--container-widget-align-self:stretch;--flex-wrap-mobile:wrap;--align-items:center;--gap:0px 0px;--row-gap:0px;--column-gap:0px;--margin-top:0px;--margin-bottom:-80px;--margin-left:0px;--margin-right:0px;--padding-top:0px;--padding-bottom:0px;--padding-left:80px;--padding-right:80px;--z-index:95;}.elementor-154 .elementor-element.elementor-element-1d504e09:not(.elementor-motion-effects-element-type-background), .elementor-154 .elementor-element.elementor-element-1d504e09 > .elementor-motion-effects-container > .elementor-motion-effects-layer{background-color:var( --e-global-color-cdc6fb2 );}.elementor-154 .elementor-element.elementor-element-53cbaabe{--display:flex;--padding-top:0px;--padding-bottom:0px;--padding-left:0px;--padding-right:0px;}.elementor-154 .elementor-element.elementor-element-7e2e7cf3{text-align:start;}.elementor-154 .elementor-element.elementor-element-7e2e7cf3 img{width:164px;}.elementor-154 .elementor-element.elementor-element-43912748{--display:flex;--flex-direction:row;--container-widget-width:calc( ( 1 - var( --container-widget-flex-grow ) ) * 100% );--container-widget-height:100%;--container-widget-flex-grow:1;--container-widget-align-self:stretch;--flex-wrap-mobile:wrap;--justify-content:flex-end;--align-items:center;--gap:2.2% 2.2%;--row-gap:2.2%;--column-gap:2.2%;--padding-top:0px;--padding-bottom:0px;--padding-left:0px;--padding-right:0px;}.elementor-154 .elementor-element.elementor-element-30fefbad{width:auto;max-width:auto;--e-nav-menu-horizontal-menu-item-margin:calc( 40px / 2 );}.elementor-154 .elementor-element.elementor-element-30fefbad .elementor-menu-toggle{margin-left:auto;background-color:#FFFFFF00;border-width:0px;border-radius:0px;}.elementor-154 .elementor-element.elementor-element-30fefbad .elementor-nav-menu .elementor-item{font-size:var( --e-global-typography-68baa77-font-size );font-weight:var( --e-global-typography-68baa77-font-weight );line-height:var( --e-global-typography-68baa77-line-height );}.elementor-154 .elementor-element.elementor-element-30fefbad .elementor-nav-menu--main .elementor-item{color:var( --e-global-color-3e538e4 );fill:var( --e-global-color-3e538e4 );padding-left:10px;padding-right:10px;padding-top:16px;padding-bottom:16px;}.elementor-154 .elementor-element.elementor-element-30fefbad .elementor-nav-menu--main .elementor-item:hover,
					.elementor-154 .elementor-element.elementor-element-30fefbad .elementor-nav-menu--main .elementor-item.elementor-item-active,
					.elementor-154 .elementor-element.elementor-element-30fefbad .elementor-nav-menu--main .elementor-item.highlighted,
					.elementor-154 .elementor-element.elementor-element-30fefbad .elementor-nav-menu--main .elementor-item:focus{color:var( --e-global-color-80d84de );fill:var( --e-global-color-80d84de );}.elementor-154 .elementor-element.elementor-element-30fefbad .elementor-nav-menu--main .elementor-item.elementor-item-active{color:var( --e-global-color-80d84de );}.elementor-154 .elementor-element.elementor-element-30fefbad .elementor-nav-menu--main:not(.elementor-nav-menu--layout-horizontal) .elementor-nav-menu > li:not(:last-child){margin-bottom:40px;}.elementor-154 .elementor-element.elementor-element-30fefbad .elementor-nav-menu--dropdown{background-color:#FFFFFF;}.elementor-154 .elementor-element.elementor-element-30fefbad .elementor-nav-menu--dropdown a:hover,
					.elementor-154 .elementor-element.elementor-element-30fefbad .elementor-nav-menu--dropdown a:focus,
					.elementor-154 .elementor-element.elementor-element-30fefbad .elementor-nav-menu--dropdown a.elementor-item-active,
					.elementor-154 .elementor-element.elementor-element-30fefbad .elementor-nav-menu--dropdown a.highlighted,
					.elementor-154 .elementor-element.elementor-element-30fefbad .elementor-menu-toggle:hover,
					.elementor-154 .elementor-element.elementor-element-30fefbad .elementor-menu-toggle:focus{color:#FFFFFF;}.elementor-154 .elementor-element.elementor-element-30fefbad .elementor-nav-menu--dropdown a:hover,
					.elementor-154 .elementor-element.elementor-element-30fefbad .elementor-nav-menu--dropdown a:focus,
					.elementor-154 .elementor-element.elementor-element-30fefbad .elementor-nav-menu--dropdown a.elementor-item-active,
					.elementor-154 .elementor-element.elementor-element-30fefbad .elementor-nav-menu--dropdown a.highlighted{background-color:#000000;}.elementor-154 .elementor-element.elementor-element-30fefbad .elementor-nav-menu--dropdown .elementor-item, .elementor-154 .elementor-element.elementor-element-30fefbad .elementor-nav-menu--dropdown  .elementor-sub-item{font-family:var( --e-global-typography-text-font-family ), Sans-serif;font-size:var( --e-global-typography-text-font-size );font-weight:var( --e-global-typography-text-font-weight );}.elementor-154 .elementor-element.elementor-element-30fefbad div.elementor-menu-toggle{color:var( --e-global-color-80d84de );}.elementor-154 .elementor-element.elementor-element-30fefbad div.elementor-menu-toggle svg{fill:var( --e-global-color-80d84de );}.elementor-154 .elementor-element.elementor-element-30fefbad div.elementor-menu-toggle:hover, .elementor-154 .elementor-element.elementor-element-30fefbad div.elementor-menu-toggle:focus{color:#000000;}.elementor-154 .elementor-element.elementor-element-30fefbad div.elementor-menu-toggle:hover svg, .elementor-154 .elementor-element.elementor-element-30fefbad div.elementor-menu-toggle:focus svg{fill:#000000;}.elementor-154 .elementor-element.elementor-element-3b7c0aa7{width:auto;max-width:auto;}.elementor-154 .elementor-element.elementor-element-3b7c0aa7 .elementor-button{font-family:var( --e-global-typography-text-font-family ), Sans-serif;font-size:var( --e-global-typography-text-font-size );font-weight:var( --e-global-typography-text-font-weight );line-height:var( --e-global-typography-text-line-height );border-style:none;border-radius:4px 4px 4px 4px;padding:8px 20px 8px 20px;}.elementor-theme-builder-content-area{height:400px;}.elementor-location-header:before, .elementor-location-footer:before{content:"";display:table;clear:both;}@media(min-width:768px){.elementor-154 .elementor-element.elementor-element-53cbaabe{--width:12%;}.elementor-154 .elementor-element.elementor-element-43912748{--width:90%;}}@media(max-width:1024px){.elementor-154 .elementor-element.elementor-element-1d504e09{--min-height:60px;--margin-top:0px;--margin-bottom:-60px;--margin-left:0px;--margin-right:0px;--padding-top:0px;--padding-bottom:0px;--padding-left:20px;--padding-right:20px;}.elementor-154 .elementor-element.elementor-element-43912748{--gap:6% 6%;--row-gap:6%;--column-gap:6%;}.elementor-154 .elementor-element.elementor-element-30fefbad .elementor-nav-menu .elementor-item{font-size:var( --e-global-typography-68baa77-font-size );line-height:var( --e-global-typography-68baa77-line-height );}.elementor-154 .elementor-element.elementor-element-30fefbad .elementor-nav-menu--dropdown .elementor-item, .elementor-154 .elementor-element.elementor-element-30fefbad .elementor-nav-menu--dropdown  .elementor-sub-item{font-size:var( --e-global-typography-text-font-size );}.elementor-154 .elementor-element.elementor-element-30fefbad .elementor-nav-menu--main > .elementor-nav-menu > li > .elementor-nav-menu--dropdown, .elementor-154 .elementor-element.elementor-element-30fefbad .elementor-nav-menu__container.elementor-nav-menu--dropdown{margin-top:22px !important;}.elementor-154 .elementor-element.elementor-element-30fefbad .elementor-menu-toggle{border-width:1px;border-radius:0px;}.elementor-154 .elementor-element.elementor-element-3b7c0aa7 .elementor-button{font-size:var( --e-global-typography-text-font-size );line-height:var( --e-global-typography-text-line-height );}}@media(max-width:767px){.elementor-154 .elementor-element.elementor-element-1d504e09{--min-height:60px;}.elementor-154 .elementor-element.elementor-element-53cbaabe{--width:34%;}.elementor-154 .elementor-element.elementor-element-7e2e7cf3 img{width:100%;}.elementor-154 .elementor-element.elementor-element-43912748{--width:66%;--gap:8px 8px;--row-gap:8px;--column-gap:8px;}.elementor-154 .elementor-element.elementor-element-30fefbad .elementor-nav-menu .elementor-item{font-size:var( --e-global-typography-68baa77-font-size );line-height:var( --e-global-typography-68baa77-line-height );}.elementor-154 .elementor-element.elementor-element-30fefbad .elementor-nav-menu--dropdown .elementor-item, .elementor-154 .elementor-element.elementor-element-30fefbad .elementor-nav-menu--dropdown  .elementor-sub-item{font-size:var( --e-global-typography-text-font-size );}.elementor-154 .elementor-element.elementor-element-30fefbad .elementor-nav-menu--main > .elementor-nav-menu > li > .elementor-nav-menu--dropdown, .elementor-154 .elementor-element.elementor-element-30fefbad .elementor-nav-menu__container.elementor-nav-menu--dropdown{margin-top:14px !important;}.elementor-154 .elementor-element.elementor-element-30fefbad .elementor-menu-toggle{border-width:0px;}.elementor-154 .elementor-element.elementor-element-3b7c0aa7 > .elementor-widget-container{margin:0px 0px 0px 8px;}.elementor-154 .elementor-element.elementor-element-3b7c0aa7 .elementor-button{font-size:var( --e-global-typography-text-font-size );line-height:var( --e-global-typography-text-line-height );padding:10px 10px 10px 10px;}}@media(max-width:1024px) and (min-width:768px){.elementor-154 .elementor-element.elementor-element-1d504e09{--width:100%;}.elementor-154 .elementor-element.elementor-element-53cbaabe{--width:20%;}.elementor-154 .elementor-element.elementor-element-43912748{--width:85%;}}/* Start custom CSS for container, class: .elementor-element-1d504e09 */.elementor-154 .elementor-element.elementor-element-1d504e09.elementor-sticky--effects{
background-color: rgb(255 255 255 / 40%);
    backdrop-filter: blur(20px);
color: #333;
box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.05) !important;
}
.elementor-154 .elementor-element.elementor-element-1d504e09.elementor-sticky--effects .elementor-nav-menu--main .elementor-item{color: #333!important;}
.elementor-154 .elementor-element.elementor-element-1d504e09.elementor-sticky .searchbg {
    background-color:#baa975!important;
    box-shadow: 0px 0px 20px 0px rgba(0, 0, 0, 0.1);
}
.elementor-154 .elementor-element.elementor-element-1d504e09.elementor-sticky--effects .elementor-menu-toggle svg{
    fill: #333;
}
.elementor-154 .elementor-element.elementor-element-1d504e09{
transition: background-color 0.3s ease !important;
}
.elementor-154 .elementor-element.elementor-element-1d504e09 .pp-menu-item-active{
    font-weight: 600;
}
.elementor-154 .elementor-element.elementor-element-1d504e09.elementor-sticky--effects .elementor-nav-menu .sub-arrow .e-font-icon-svg{
    fill:#666;
}


/* 当页面向下滚动，导航栏激活粘性状态时 */
.elementor-154 .elementor-element.elementor-element-1d504e09.elementor-sticky--effects .dynamic-logo img {
    content: url('https://derkhvac.com/wp-content/uploads/2026/05/derk.webp'); 
    
    transition: all 0.3s ease-in-out; /* 让过渡更平滑 */
}
.dynamic-logo img {
    transition: all 0.3s ease-in-out;
}/* End custom CSS */