/* Shared QTECH line icon system and compact single-row header. */
.q-icon-sprite{position:absolute;width:0;height:0;overflow:hidden;pointer-events:none}
.q-icon{width:18px;height:18px;display:inline-block;vertical-align:-.18em;flex-shrink:0;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;color:inherit}
.q-icon use{fill:none;stroke:currentColor}.industry-icon .q-icon{width:24px;height:24px;color:#345b7b}.industry-icon{display:inline-flex;align-items:center;justify-content:center}.chat-toggle-btn .q-icon{width:24px;height:24px}.chat-toggle-btn{display:flex;align-items:center;justify-content:center}.q-button .q-icon{width:17px;height:17px}.q-text-link .q-icon,.product-link .q-icon{width:15px;height:15px}.gas-formula .q-icon{display:none}.footer-contacts .q-icon,.contact-icon .q-icon{width:14px;height:14px}.panel-title .q-icon,.footer-badge .q-icon{width:13px;height:13px;margin-right:4px}.hazard-tag .q-icon{width:14px;height:14px;margin-right:3px}.popup-close .q-icon,.doc-modal-close .q-icon,.detail-close-two .q-icon,.modal-close .q-icon{width:18px;height:18px}.kvantek-full-arrow .q-icon{width:15px;height:15px}.q-slide-pause:focus-visible{outline-offset:2px}.pdf-btn{display:inline-flex;align-items:center;gap:7px}.pdf-btn .q-icon{width:15px;height:15px}.q-icon+ .message-time{display:block}
body .q-site-header{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid #e0e8f0;box-shadow:0 2px 12px #143b5c04}
body .q-header-row{max-width:1440px;padding:18px 28px;min-height:88px;display:flex;align-items:center;gap:28px;margin:auto}
body .q-brand{flex:0 0 auto;gap:10px}body .q-brand img{width:42px;height:42px}body .q-brand b{font-size:23px}body .q-brand small{font-size:7px;letter-spacing:.17em;margin-top:5px}
body .q-navigation{display:flex;align-items:center;gap:25px;flex:0 0 auto;margin-left:auto;order:2}body .q-nav-group{position:relative}body .q-nav-trigger,body .q-nav-link{color:#34516a;background:none;border:0;padding:12px 0;font:inherit;font-size:12px;font-weight:500;white-space:nowrap;display:inline-flex;align-items:center;gap:7px;line-height:1.3}
body .q-nav-trigger .q-icon{width:11px;height:11px}body .q-nav-trigger:hover,body .q-nav-link:hover{color:#145de2}
body .q-nav-dropdown{display:none;position:absolute;top:100%;left:-18px;min-width:245px;padding:9px;background:#fff;border:1px solid #dce6ef;box-shadow:0 12px 36px #19395715;border-radius:9px;z-index:3}
body .q-nav-group.is-open>.q-nav-dropdown{display:flex;flex-direction:column}body .q-nav-dropdown a{display:block;font-size:12px;color:#34516a;padding:11px 12px;border-radius:4px;background:none}
body .q-nav-dropdown a:hover{color:#145de2;background:#edf5fc}body .q-nav-dropdown a[aria-current=page]{color:#145de2;background:#f2f7fd}
body .q-header-search{position:relative;margin:0;min-width:110px;width:190px;flex:0 1 190px;order:3}body .q-header-search .search-wrapper{width:100%;position:relative}body .q-header-search .search-wrapper>.q-icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:15px;height:15px;color:#6f879b;pointer-events:none}
body .q-header-search input,body .q-header-search #gasSearchInput,body .q-header-search #gasSearchInput:focus{font:inherit;font-size:12px;background:#f6f9fc;border:1px solid #e0e8f0;border-radius:6px;height:40px;color:#183650;width:100%;padding:8px 10px 8px 34px;box-shadow:none}
body .q-header-search input::placeholder{color:#6f879b}body .q-header-search .search-dropdown{min-width:260px;right:0;left:auto}
body .q-header-phone{display:flex;align-items:center;gap:8px;white-space:nowrap;color:#173750;font-size:14px;font-weight:600;order:4;flex:0 0 auto}body .q-header-phone .q-icon{width:15px;height:15px;color:#41637f}body .q-header-phone:hover{color:#145de2}body .q-menu-toggle{display:none}
body .q-header-caption{display:none}body .q-header-contacts{display:none}
body .q-catalog-toolbar{top:87px}:root{scroll-padding-top:110px}.q-gases .gas-card{scroll-margin-top:190px}
.q-submission-pending{opacity:.65}.q-user-message-body{white-space:pre-wrap;overflow-wrap:anywhere}.chat-window .message{overflow-wrap:anywhere}.telegram-status.is-error{color:#8a3838!important}.q-icon[aria-hidden=true]{user-select:none}
/* Full-bleed banner: bounded photograph blends into the same edge color on wide screens. */
body.q-index #q-main{width:100%;max-width:none!important;padding:0!important;overflow-x:visible!important}
body.q-index #q-main>.q-hero{position:relative;width:100%;max-width:none!important;margin:0!important;padding:0!important;background:#edf5fd!important;isolation:isolate;overflow:hidden}
body.q-index .q-hero:after{content:"";position:absolute;z-index:-2;top:0;bottom:0;left:50%;transform:translateX(-50%);width:min(100%,1800px);background:url('gas-installation.webp') center 54%/cover no-repeat;mask-image:linear-gradient(90deg,transparent,#000 9%,#000 88%,transparent);-webkit-mask-image:linear-gradient(90deg,transparent,#000 9%,#000 88%,transparent);pointer-events:none}
body.q-index .q-hero:before{content:"";position:absolute;z-index:-1;inset:0;background:linear-gradient(90deg,#edf5fd 0%,#edf5fdf5 25%,#edf5fd9c 42%,#edf5fd10 69%,#edf5fd18 86%,#edf5fd88 100%);pointer-events:none}
body.q-index .q-hero-inner{width:100%;max-width:1240px;margin:0 auto;padding:76px 28px 65px;min-height:590px}
body.q-index #q-main>.fullwidth-slider-wrapper{left:auto!important;right:auto!important;transform:none!important;width:100%!important;max-width:1240px!important;margin-left:auto!important;margin-right:auto!important;overflow:visible}
body.q-index .kvantek-full-slider{border-radius:16px!important}
body.q-index #q-main>.q-trust-strip{max-width:1240px!important;margin-left:auto;margin-right:auto}
@media(max-width:1150px){body .q-header-row{gap:18px;padding:16px 24px}body .q-brand img{width:37px;height:37px}body .q-brand b{font-size:21px}body .q-brand small{font-size:6px}body .q-navigation{gap:18px}body .q-header-search{width:145px;flex-basis:145px}body .q-header-phone{font-size:12px;gap:5px}body .q-nav-trigger,body .q-nav-link{font-size:11px}}
@media(max-width:850px){body .q-header-row{gap:14px;padding:14px 20px;min-height:76px}body .q-navigation{gap:14px}body .q-nav-trigger,body .q-nav-link{font-size:11px}body .q-brand img{width:32px;height:32px}body .q-brand b{font-size:18px}body .q-brand small{font-size:5.5px}body .q-header-search{width:125px;min-width:100px;flex-basis:125px}body .q-header-phone{font-size:11px}body .q-header-phone>.q-icon{display:none}body .q-header-search input,body .q-header-search #gasSearchInput{font-size:11px}body .q-catalog-toolbar{top:75px}}
@media(max-width:720px){body .q-header-row{gap:12px;position:relative;padding:13px 16px;min-height:72px}body .q-brand{order:1}body .q-brand img{width:32px;height:32px}body .q-brand b{font-size:18px}body .q-brand small{font-size:5.5px}body .q-menu-toggle{order:2;display:flex;align-items:center;justify-content:center;width:34px;min-height:38px;height:38px;flex:0 0 34px;margin:0;padding:0;border:0;background:#fff;color:#34516a}body .q-menu-toggle .q-icon{width:21px;height:21px}body .q-header-search{order:3;flex:1 1 150px;width:auto;min-width:76px;margin:0}body .q-header-phone{order:4;font-size:11px}body .q-navigation{display:none;position:absolute;top:100%;left:0;right:0;margin:0;padding:12px 20px 20px;background:#fff;border-bottom:1px solid #dce6ef;box-shadow:0 10px 20px #143b5c0a;align-items:stretch;gap:0}body .q-menu-open .q-navigation{display:flex;flex-direction:column}body .q-nav-trigger,body .q-nav-link{font-size:14px;min-height:43px;padding:12px 0}body .q-nav-trigger{width:100%;justify-content:space-between}body .q-nav-dropdown{position:static;border:0;box-shadow:none;padding:0 0 10px 12px;background:none;min-width:0;border-radius:0}body .q-nav-dropdown a{padding:11px 0;font-size:13px}body .q-header-search input,body .q-header-search #gasSearchInput,body .q-header-search #gasSearchInput:focus{font-size:12px;height:38px;padding-left:30px}body .q-header-search .search-wrapper>.q-icon{left:10px;width:13px;height:13px}body .q-header-search .search-dropdown{width:calc(100vw - 32px);max-width:calc(100vw - 32px);min-width:0;right:0;left:auto}body .q-catalog-toolbar{top:71px}:root{scroll-padding-top:95px}}
@media(max-width:540px){body .q-header-row{gap:7px;padding:12px;min-height:68px}body .q-brand{gap:6px}body .q-brand img{width:28px;height:28px}body .q-brand b{font-size:16px}body .q-brand small{font-size:5px;letter-spacing:.08em}body .q-header-phone{width:30px;height:38px;flex:0 0 30px;justify-content:center}body .q-header-phone>span{display:none}body .q-header-phone>.q-icon{display:block;width:18px;height:18px}body .q-header-search{min-width:70px}body .q-menu-toggle{width:30px;flex-basis:30px}body .q-header-search .search-dropdown{position:fixed;top:64px;left:12px;right:12px;width:auto;max-width:none}.q-gases .gas-card{scroll-margin-top:90px}}
@media(max-width:850px){body.q-index .q-hero-inner{min-height:550px;padding-top:54px;padding-bottom:54px}body.q-index .q-hero:before{background:linear-gradient(90deg,#edf5fdfc,#edf5fddb 40%,#edf5fd44 80%,#edf5fd77)}}
@media(max-width:650px){body.q-index .q-hero-inner{padding:38px 20px 225px;min-height:655px}body.q-index .q-hero:after{width:100%;height:450px;top:auto;bottom:0;background-size:auto 450px;background-position:68% bottom;mask-image:linear-gradient(180deg,transparent,#000 24%);-webkit-mask-image:linear-gradient(180deg,transparent,#000 24%)}body.q-index .q-hero:before{background:linear-gradient(180deg,#edf5fd 0%,#edf5fdf0 34%,#edf5fd66 63%,#edf5fd00 100%)}body.q-index .kvantek-full-slider{border-radius:12px!important}}
@media(max-width:360px){body.q-index .q-hero h1{font-size:40px!important}}
.doc-modal-overlay{transition:none!important}
/* The source did not contain actual social profile URLs. Keep placeholders out of the UI. */
.footer-social{display:none!important}
/* Specialist chat: separate title rows, no text placed inside the former status dot. */
body .chat-header{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:18px;border-bottom:1px solid #dce6ef;background:#eff6fd!important;flex:0 0 auto}
body .chat-header-info{display:flex;align-items:center;gap:11px;flex:1;min-width:0}
body .chat-avatar{display:flex;align-items:center;justify-content:center;width:36px;height:36px;flex:0 0 36px;background:#e1edf9!important;color:#345b7b;border-radius:9px}
body .chat-avatar .q-icon{width:22px;height:22px}
body .chat-header-text{min-width:0;flex:1}
body .chat-header-text .q-chat-brand{margin:0 0 4px;font-size:9px!important;letter-spacing:.13em;line-height:1.3;color:#5d7b95;font-weight:600}
body .chat-header-text h3{font-size:14px!important;line-height:1.4;letter-spacing:0;font-weight:600;margin:0;overflow-wrap:normal;white-space:normal;color:#173b59!important}
body .chat-close{flex:0 0 30px;width:30px;height:30px;display:flex;align-items:center;justify-content:center;padding:0;background:transparent;border:0;border-radius:6px;color:#52728b}
body .chat-close:hover{background:#dfebf6}
body .chat-close .q-icon{width:17px;height:17px}
.q-chat-contact-note{font-size:11px!important;line-height:1.5!important;color:#5d7b91;margin:0;padding:8px 14px 0;background:#fff}
body .chat-messages{min-height:0}
body .telegram-status{line-height:1.45;padding:7px 12px;min-height:28px;flex:0 0 auto}
body .chat-input-area{flex:0 0 auto}
body .quick-replies{flex:0 0 auto}