/* The same hierarchy on every page: category, overview, then topic. */
:root{--header-height:78px}
.header .header-inner{position:relative}
.header #navigation{gap:26px}
.nav-group{position:static;align-self:stretch;display:flex;align-items:center}
.nav-trigger{display:flex;align-items:center;gap:7px;color:inherit;background:transparent;border:0;padding:20px 0;min-height:44px;font-size:14px;line-height:1.2;white-space:nowrap;transform:none!important}
.nav-trigger svg{transition:transform .2s}
.nav-trigger[aria-expanded=true] svg{transform:rotate(180deg)}
.nav-trigger.has-current-page{color:#abc4e8}
.nav-panel{position:absolute;top:calc(100% - 1px);left:0;right:0;padding:30px;display:grid;grid-template-columns:220px 1fr;gap:30px;color:#1f2932;background:#fafafb;border:1px solid #e2e5e9;border-top:0;border-radius:0 0 20px 20px;box-shadow:0 22px 35px #0002;max-height:calc(100dvh - var(--header-height) - 20px);overflow:auto}
.nav-panel-intro{padding:10px 25px 10px 0;border-right:1px solid #e0e3e7}
.nav-panel-intro p{font-size:23px;line-height:1.15;letter-spacing:-.035em;font-weight:550;max-width:180px}
.nav-panel-intro a{display:inline-block;margin-top:26px;font-size:13px;color:#47657e}
.nav-panel-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px 24px}
.nav-panel-links a{display:grid;grid-template-columns:1fr 16px;gap:6px 12px;align-content:center;padding:14px 0;border-bottom:1px solid #e4e6ea;transform:none!important;border-radius:0}
.nav-panel-links strong{font-size:15px;line-height:1.3;font-weight:550;letter-spacing:-.015em;transition:transform .18s}
.nav-panel-links small{grid-column:1;font-size:12px;line-height:1.5;color:#6d747d}
.nav-panel-links a>span{grid-column:2;grid-row:1;color:#728395}
.nav-panel-links a:hover strong{transform:translateX(3px);color:#0754b8}
.nav-panel-links a[aria-current]{border-bottom-color:#6484a3}
.nav-panel-links a[aria-current] strong{color:#0754b8}
.header .search-nav{min-width:30px}
.detail-toc-wrap{position:sticky;top:var(--header-height);z-index:10;background:#f7f8faf5;border-bottom:1px solid #e2e5e9}
.detail-toc{padding:14px 0;border:0;flex-wrap:nowrap;gap:24px}
.detail-toc>span{font-size:11px;text-transform:uppercase;letter-spacing:.09em;white-space:nowrap;color:#7b818b}
.detail-toc-links{display:flex;align-items:center;gap:8px;overflow-x:auto;min-width:0;scrollbar-width:thin;padding:2px 2px 5px}
.detail-toc-links a{white-space:nowrap;font-size:12px;color:#566374;padding:7px 12px;border:1px solid transparent;border-radius:8px;line-height:1.5;text-decoration:none}
.detail-toc-links a:hover{color:#0754b8}
.detail-toc-links a[aria-current]{background:#fff;border-color:#d8dfe8;color:#214c74}
.premium-site .detail-layout{padding-top:65px;gap:70px;grid-template-columns:minmax(0,1fr) 310px}
.detail-section{scroll-margin-top:90px;padding:0 0 38px;margin:0 0 38px}
.detail-section h2{font-size:clamp(27px,2.3vw,34px);line-height:1.13;max-width:640px}
.detail-section p{font-size:17px;line-height:1.7;max-width:690px}
.detail-section ul{list-style:none;padding:0;margin:24px 0 0;display:grid;gap:0}
.detail-section li{position:relative;padding:13px 0 13px 24px;margin:0;border-top:1px solid #e4e7eb;font-size:15px;line-height:1.6}
.detail-section li:before{content:'';position:absolute;left:2px;top:22px;width:5px;height:5px;border-radius:50%;background:#8299ad}
.detail-section-photo{margin:30px 0 0;border-radius:16px;overflow:hidden;background:#e7eaed}
.detail-section-photo img{width:100%;aspect-ratio:16/9;object-fit:cover}
.premium-site .detail-aside{top:calc(var(--header-height) + 92px);padding:28px;border-radius:18px;border:1px solid #e0e5eb;background:#f0f3f6}
.premium-site .detail-aside h2{font-size:25px!important}
.detail-aside>p:not(.eyebrow){font-size:14px;line-height:1.7}
.premium-site .detail-related .content-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.premium-site .content-card{border-radius:18px;border:1px solid #e0e5eb;padding:28px;background:#fafbfc;transform:none!important}
.premium-site .content-card:hover{border-color:#98acc0;background:#fafbfc}
.premium-site .content-card h3{font-size:24px;line-height:1.15}
.premium-site .content-card>p{font-size:14px;line-height:1.6}
.premium-site .content-card .eyebrow{font-size:10px;color:#6c7e90;margin-bottom:22px}
.premium-site .detail-hero:not(.has-photo){background:linear-gradient(115deg,#101d29,#233444);padding-bottom:65px}
.detail-hero .breadcrumbs{font-size:12px;line-height:1.5}
.energy-direction{grid-column:span 2}
.product-path-links .energy-direction img{aspect-ratio:auto;height:246px;object-position:50% 72%}
.product-path-links .energy-direction>span{font-size:21px}
.product-path-links .energy-direction small{display:block;font-size:12px;line-height:1.5;color:#717c87;margin-top:6px}
.detail-hero .detail-photo img[src*=utility-scale-storage]{object-position:50% 70%}
@media(min-width:981px){.nav-group:after{content:'';height:18px;position:absolute;top:100%;width:95px;pointer-events:none}}
@media(max-width:1100px){.header #navigation{gap:19px}.nav-panel{grid-template-columns:170px 1fr}.premium-site .detail-layout{gap:35px;grid-template-columns:minmax(0,1fr) 285px}.product-path-links .energy-direction img{height:209px}}
@media(max-width:980px){
 .header .menu-toggle{display:flex}.header #navigation{display:none;position:absolute;top:100%;left:-24px;right:-24px;max-height:calc(100dvh - var(--header-height));overflow-y:auto;background:#0d1015;padding:15px 25px 25px;gap:2px;border-bottom:1px solid #30343b}
 .header #navigation.is-open{display:flex;flex-direction:column;align-items:stretch}.nav-group{display:block}
 .nav-trigger{width:100%;justify-content:space-between;padding:16px 0;border-bottom:1px solid #ffffff1f}
 .header #navigation>a:not(.button){padding:16px 0;border-bottom:1px solid #ffffff1f}.header #navigation .search-nav{padding-block:12px}.header #navigation>.button{margin-top:12px}
 .nav-panel{position:static;padding:18px;border-radius:12px;display:block;box-shadow:none;border:0;max-height:none;margin:0 0 10px}
 .nav-panel-intro{border:0;padding:0 0 15px}.nav-panel-intro p{display:none}.nav-panel-intro a{margin:0}
 .nav-panel-links{grid-template-columns:1fr}.nav-panel-links a{padding:13px 0}.nav-panel-links small{font-size:12px}
 .nav-panel-links strong{font-size:15px}.nav-panel-links a:last-child{border:0}
}
@media(max-width:800px){
 .premium-site:has(#navigation.is-open) .support-launcher{visibility:hidden}
 .premium-site .detail-hero.energy-photo-hero{display:flex;flex-direction:column;min-height:0;background:#0a131d;padding:28px 0 0}
 .detail-hero.energy-photo-hero:after{display:none}
 .detail-hero.energy-photo-hero>.container{padding-bottom:28px}
 .detail-hero.energy-photo-hero .detail-photo{position:relative;inset:auto;order:1;height:250px;z-index:0;opacity:1}
 .detail-hero.energy-photo-hero .detail-photo img{width:100%;height:100%;object-fit:cover;object-position:50% 80%}
 .detail-hero.energy-photo-hero .breadcrumbs{margin-bottom:32px}
 .premium-site .detail-layout{grid-template-columns:1fr;padding-top:36px;gap:20px}.premium-site .detail-aside{position:static;padding:25px}
 .detail-toc{gap:10px;display:block;padding:9px 0}.detail-toc>span{display:none}.detail-toc-links{gap:3px;margin:0 -3px;padding-bottom:2px}.detail-toc-links a{font-size:12px;padding:7px 10px}
 .detail-section{scroll-margin-top:72px;padding-bottom:30px;margin-bottom:30px}.detail-section p{font-size:16px}.detail-section li{font-size:14px}
 .energy-direction{grid-column:span 2}.product-path-links .energy-direction img{height:230px}.premium-site .content-card{padding:24px}
 .detail-hero .detail-photo img[src*=utility-scale-storage]{object-position:50% 73%}
}
@media(min-width:601px) and (max-width:900px){.product-path-links{grid-auto-flow:dense}}
@media(max-width:600px){.energy-direction{grid-column:auto}.product-path-links .energy-direction img{height:auto;aspect-ratio:16/10}.product-path-links .energy-direction>span{font-size:19px}.header #navigation{left:-20px;right:-20px}}
@media(prefers-reduced-motion:reduce){.nav-trigger svg,.nav-panel-links strong{transition:none}.nav-panel-links a:hover strong{transform:none}}

/* Keep reading navigation out of the inquiry and footer. */
.detail-toc-wrap.is-past-content{visibility:hidden;pointer-events:none}
body.inquiry-in-view .support-launcher{visibility:hidden}
#inquiry :is(input,textarea,button){scroll-margin-top:calc(var(--header-height,80px) + 24px);scroll-margin-bottom:90px}

/* Detailed reading stays inside each overview, with supporting topics on demand. */
.premium-site .detail-layout{display:block;max-width:860px;padding:48px 0 24px}
.detail-section{padding-bottom:28px;margin-bottom:28px;scroll-margin-top:calc(var(--header-height) + 24px)}
.detail-section h2{font-size:clamp(24px,2.2vw,30px);line-height:1.25;max-width:none}
.detail-section p{max-width:none}
.detail-disclosure{margin:0;padding:0;border-bottom:1px solid #dce2e7;scroll-margin-top:calc(var(--header-height) + 24px)}
.detail-disclosure>summary{display:flex;align-items:center;justify-content:space-between;gap:24px;list-style:none;cursor:pointer;padding:24px 0;min-height:72px}
.detail-disclosure>summary::-webkit-details-marker{display:none}
.detail-disclosure>summary:after{content:'+';font-size:24px;font-weight:400;color:#61788d;flex-shrink:0}
.detail-disclosure[open]>summary:after{content:'−'}
.detail-disclosure>summary h2{font-size:20px;margin:0;line-height:1.35;letter-spacing:-.015em}
.detail-disclosure>summary:focus-visible{outline:2px solid #0754b8;outline-offset:5px}
.detail-disclosure-body{padding-bottom:30px}
.detail-disclosure-body p{font-size:16px}
.detail-table-disclosure>summary{font-size:16px;color:#235ea5;font-weight:550}
.detail-table-wrap{overflow-x:auto;margin:18px 0;border:1px solid #dce2e7;border-radius:8px;background:#fafbfc}
.detail-table-wrap:focus-visible{outline:2px solid #0754b8;outline-offset:4px}
.detail-table-wrap table{width:100%;border-collapse:collapse;font-size:15px;line-height:1.55}
.detail-table-wrap caption{text-align:left;font-size:14px;color:#5d6d79;padding:16px 18px;background:#eef2f5}
.detail-table-wrap th,.detail-table-wrap td{padding:15px 18px;border-bottom:1px solid #dce2e7;text-align:left;vertical-align:top;min-width:140px}
.detail-table-wrap thead th{color:#253d50;background:#f3f5f7;font-weight:600}
.detail-table-wrap tbody th{font-weight:550;width:30%}
.detail-table-wrap tr:last-child>*{border-bottom:0}
.detail-resource{display:inline-flex;min-height:44px;align-items:center;margin:12px 18px 0 0;color:#235ea5;text-decoration:underline;text-underline-offset:4px;font-size:15px}
.detail-resource:focus-visible{outline:2px solid #0754b8;outline-offset:5px}
.premium-site .detail-related{display:flex;flex-wrap:wrap;align-items:center;gap:4px 28px;max-width:860px;padding-bottom:28px}
.premium-site .detail-related>.eyebrow{flex-shrink:0;margin:0}
.detail-related-links{display:flex;flex-wrap:wrap;align-items:center;gap:0 28px;min-width:0}
.detail-related-links a{display:inline-flex;align-items:center;justify-content:flex-start;gap:8px;min-height:44px;max-width:100%;padding:10px 0;color:#235ea5;font-size:16px;line-height:1.5}
.detail-related-links a>.control-label{min-width:0}
.detail-related-links a>span[aria-hidden]{flex-shrink:0}
.detail-related-links a:hover{text-decoration:underline;text-underline-offset:4px}
@media(max-width:800px){.premium-site .detail-layout{padding:32px 0 20px}.detail-disclosure>summary{padding-block:20px}.detail-disclosure>summary h2{font-size:18px}.detail-table-wrap table{font-size:14px}.detail-table-wrap th,.detail-table-wrap td{padding:12px;min-width:130px}.premium-site .detail-related{display:block;padding-bottom:24px}.premium-site .detail-related>.eyebrow{margin-bottom:4px}.detail-related-links{display:flex;flex-direction:column;align-items:flex-start;gap:0}}
@media print{.detail-disclosure:not([open])>*,.detail-table-disclosure:not([open])>*{display:block!important}}

/* Guide posters stay still; the process example plays only on request. */
.detail-photo img,.detail-photo .detail-process-video{object-position:var(--detail-photo-position,50% 50%)}
.detail-photo .detail-process-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0}
.detail-film-ready .detail-photo .detail-process-video{opacity:1}
.detail-film-controls{display:flex;align-items:center;gap:12px 18px;flex-wrap:wrap;margin-top:20px}
.detail-film-controls[hidden]{display:none}
.detail-film-controls>span{color:#bbc7d4;font-size:13px;line-height:1.5}
.detail-film-toggle{display:inline-flex;align-items:center;justify-content:center;min-width:156px;min-height:44px;padding:10px 17px;border:1px solid #ffffff75;border-radius:100px;background:#111d29cc;color:#fff;font:inherit;font-size:14px;cursor:pointer}
.detail-film-toggle:hover{background:#24384a}
.detail-film-toggle:focus-visible{outline:2px solid #fff;outline-offset:4px}
.detail-film-toggle:disabled{cursor:default;opacity:.7}
@media(max-width:520px){.detail-film-controls{gap:10px 14px}.detail-film-controls>span{font-size:12px}}

/* Real solar equipment remains fully legible in the shared energy card. */
.product-path-links .energy-direction img{object-position:50% 70%}
.premium-site .detail-hero.has-photo .container>p.detail-photo-caption{font-size:13px;line-height:1.6;color:#c6d0da;margin:20px 0 0}
.detail-film-stage{position:relative;aspect-ratio:16/9;overflow:hidden}
.detail-film-stage>img,.detail-film-stage>video{display:block;width:100%;height:100%;object-fit:cover}
.detail-film-stage>video{position:absolute;inset:0;opacity:0}
.detail-film-ready .detail-film-stage>video{opacity:1}
.detail-section-film .detail-film-controls{margin:0;padding:14px 18px;background:#eef1f3}
.detail-section-film .detail-film-controls>span{color:#4e5e6b}
.detail-section-photo>figcaption:not(.detail-film-controls){font-size:13px;line-height:1.6;padding:12px 18px;color:#4e5e6b}

/* Energy reading photographs use level, edge-to-edge rectangular frames. */
#detail-solar>.detail-section-photo,#detail-storage>.detail-section-photo{border-radius:0;background:transparent;transform:none;translate:none;rotate:none;scale:1}
#detail-solar>.detail-section-photo>img,#detail-storage>.detail-section-photo>img{display:block;width:100%;margin:0;border-radius:0;transform:none;translate:none;rotate:none;scale:1}