.gst-page { color: #253449; background: #fff; font-family: "Be Vietnam Pro", sans-serif; }
.gst-page h1, .gst-page h2, .gst-page h3 { color: #13243b; }
.gst-page p { line-height: 1.8; }
.gst-hero { padding: 28px 0 76px; background: linear-gradient(115deg, #fff8f4, #f1f5fa); }
.gst-breadcrumb { display: flex; gap: 12px; margin-bottom: 52px; font-size: .85rem; }
.gst-breadcrumb a { color: #65493b; }
.gst-eyebrow { color: #b72c09; font-size: .78rem; letter-spacing: .14em; font-weight: 800; margin-bottom: 16px; }
.gst-hero h1 { font-size: clamp(3rem, 6vw, 5.4rem); line-height: 1.08; letter-spacing: -.045em; font-weight: 800; }
.gst-hero h1 span { color: #d73512; }
.gst-intro { max-width: 590px; font-size: 1.1rem; margin-top: 24px; }
.gst-button, .gst-button-outline { padding: 14px 22px; border-radius: 8px; font-weight: 700; text-transform: none; }
.gst-button { background: #c8320f; color: white; border: 1px solid #c8320f; }
.gst-button:hover { background: #a32609; color: white; }
.gst-button-outline { border: 1px solid #64748b; color: #243449; }
.gst-button-outline:hover { background: #e2e8f0; color: #13243b; }
.gst-overview { padding: 32px; background: #14263d; border-radius: 20px; color: #c6d3e3; box-shadow: 0 24px 48px #14263d24; }
.gst-brand { color: #fff; font-size: 4.8rem; font-weight: 900; letter-spacing: -.05em; line-height: 1.1; padding-bottom: 30px; }
.gst-brand span { display: block; font-size: .7rem; letter-spacing: .2em; margin-top: 12px; color: #c6d3e3; }
.gst-system-link { display: flex; align-items: center; gap: 16px; padding: 24px 0; border-top: 1px solid #ffffff30; color: #fff; }
.gst-system-link:hover { color: #ffb998; }
.gst-system-link > span:last-child { margin-left: auto; }
.gst-system-link strong, .gst-system-link small { display: block; }
.gst-system-link strong { font-size: 1.25rem; margin-bottom: 5px; }
.gst-system-link small { color: #c6d3e3; }
.gst-number { color: #ffb998; font-size: .85rem; }
.gst-section-nav { border-bottom: 1px solid #e1e6ed; padding: 22px 0; }
.gst-section-nav a { color: #34445b; font-weight: 700; font-size: .9rem; }
.gst-section-nav a:hover, .gst-text-link { color: #b72c09; }
.gst-section { padding-top: 80px; padding-bottom: 80px; }
.gst-page section[id] { scroll-margin-top: 24px; }
.gst-section h2, .gst-cta h2 { font-size: clamp(2rem, 3.5vw, 3rem); font-weight: 800; letter-spacing: -.035em; margin-bottom: 22px; }
.gst-text-link { display: inline-block; font-weight: 700; margin-top: 10px; }
.gst-device-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.gst-device { padding: 26px; border: 1px solid #e0e6ed; border-radius: 14px; background: #fff; }
.gst-device i { color: #be3010; font-size: 1.5rem; margin-bottom: 24px; }
.gst-device h3 { font-size: 1.05rem; font-weight: 700; }
.gst-device p { font-size: .93rem; margin-bottom: 0; color: #536278; }
.gst-conventional { background: #f3f6f9; }
.gst-comparison { border: 1px solid #e0e6ed; border-radius: 12px; }
.gst-comparison table { min-width: 620px; }
.gst-comparison th, .gst-comparison td { padding: 20px; color: #34445b; vertical-align: middle; }
.gst-comparison thead th { background: #14263d; color: #fff; }
.gst-comparison tbody th { background: #f5f7fa; }
.gst-cta { display: flex; align-items: center; justify-content: space-between; gap: 32px; background: #14263d; color: #d3deea; padding: 48px; border-radius: 18px; }
.gst-cta h2, .gst-phone { color: #fff; }
.gst-cta .gst-eyebrow { color: #ffb998; }
.gst-cta p:last-child { margin-bottom: 0; }
.gst-phone { text-align: center; white-space: nowrap; }
.gst-phone:hover { color: #ffb998; }
.gst-page a:focus-visible { outline: 3px solid #e87732; outline-offset: 5px; }
@media (max-width: 767px) {
    .gst-hero { padding-bottom: 40px; }
    .gst-breadcrumb { margin-bottom: 32px; }
    .gst-section { padding-top: 48px; padding-bottom: 48px; }
    .gst-cta { padding: 28px; flex-direction: column; align-items: flex-start; }
}
@media (max-width: 479px) {
    .gst-device-grid { grid-template-columns: 1fr; }
    .gst-overview { padding: 24px; }
}
.gst-showcase { padding: 18px; background: #fff; border: 1px solid #e8e4e0; border-radius: 22px; box-shadow: 0 24px 65px #14263d14; }
.gst-showcase-heading { display: flex; justify-content: space-between; padding: 6px 6px 18px; font-size: .7rem; letter-spacing: .12em; font-weight: 800; color: #526175; }
.gst-showcase-heading > span:last-child { color: #c8320f; }
.gst-showcase-main { display: block; background: #f7f6f4; border-radius: 12px; padding: 18px; color: #13243b; }
.gst-showcase-main img { display: block; width: 100%; height: 230px; object-fit: contain; mix-blend-mode: multiply; }
.gst-showcase-caption { display: flex; justify-content: space-between; align-items: center; margin-top: 16px; font-size: .65rem; letter-spacing: .1em; }
.gst-showcase-caption strong { display: block; font-size: 1.4rem; letter-spacing: -.02em; margin-top: 4px; }
.gst-showcase-caption > span:last-child { font-size: 1.7rem; }
.gst-showcase-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 12px; }
.gst-showcase-pair a { display: block; padding: 12px; background: #f5f7f9; border-radius: 12px; color: #526175; font-size: .7rem; }
.gst-showcase-pair img { width: 100%; height: 90px; object-fit: contain; mix-blend-mode: multiply; margin-bottom: 12px; }
.gst-showcase-pair strong { display: block; color: #13243b; margin-top: 3px; font-size: .85rem; }
.gst-product-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; margin-top: 36px; }
.gst-product { min-width: 0; display: flex; flex-direction: column; overflow: hidden; border: 1px solid #e0e6ed; border-radius: 18px; background: #fff; transition: box-shadow .2s ease, border-color .2s ease; }
.gst-product:hover { border-color: #ddb7aa; box-shadow: 0 16px 40px #14263d10; }
.gst-product-image { position: relative; display: flex; align-items: center; justify-content: center; padding: 52px 28px 36px; background: #faf9f7; overflow: hidden; }
.gst-product-image img { width: 100%; height: 230px; object-fit: contain; mix-blend-mode: multiply; transition: transform .25s ease; }
.gst-product-image:hover img { transform: scale(1.04); }
.gst-product-badge { position: absolute; top: 18px; left: 18px; padding: 5px 10px; border: 1px solid #e5dfd7; border-radius: 6px; background: #fff; color: #526175; font-size: .7rem; font-weight: 700; }
.gst-image-hint { position: absolute; bottom: 12px; right: 18px; font-size: .7rem; color: #647084; }
.gst-product-info { padding: 26px; display: flex; flex: 1; flex-direction: column; align-items: flex-start; }
.gst-product-info .gst-product-code { font-size: .72rem; letter-spacing: .1em; color: #b52d0c; font-weight: 800; margin-bottom: 9px; }
.gst-product-info h3 { font-size: 1.25rem; line-height: 1.4; font-weight: 800; margin-bottom: 12px; }
.gst-product-info > p { font-size: .92rem; color: #526175; }
.gst-product-tags { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 24px; }
.gst-product-tags span { background: #f1f4f7; color: #526175; font-size: .7rem; padding: 5px 9px; border-radius: 5px; }
.gst-product-cta { display: flex; width: 100%; justify-content: space-between; align-items: center; color: #b52d0c; font-size: .88rem; font-weight: 800; border-top: 1px solid #e5e9ee; padding-top: 18px; margin-top: auto; }
.gst-product-featured { display: grid; grid-template-columns: 1fr 1fr; height: 100%; }
.gst-product-featured .gst-product-image img { height: 250px; }
.gst-collection-note { align-self: center; padding-left: 60px; }
.gst-collection-note > span { font-size: .7rem; letter-spacing: .12em; color: #667589; }
.gst-collection-note p { font-size: 1.4rem; line-height: 1.6; color: #34445b; margin: 12px 0 0; }
.gst-page article[id] { scroll-margin-top: 24px; }
@media (max-width: 991px) { .gst-collection-note { padding-left: 12px; } .gst-product-grid { gap: 16px; } .gst-product-info { padding: 20px; } .gst-product-image { padding-left: 20px; padding-right: 20px; } .gst-product-image img { height: 190px; } }
@media (max-width: 767px) { .gst-product-grid { grid-template-columns: 1fr; } .gst-product-image img { height: 250px; } .gst-collection-note { display: none; } }
@media (max-width: 575px) { .gst-product-featured { grid-template-columns: 1fr; } .gst-showcase-main img { height: 210px; } }
@media (prefers-reduced-motion: reduce) { .gst-product, .gst-product-image img { transition: none; } }
.gst-showcase a, .gst-product-image, .gst-product-cta { text-decoration: none; }

.gst-accessory-title { margin: 40px 0 0; font-size: 1.2rem; font-weight: 800; }
.gst-panel-section { margin-top: 44px; padding: 32px 0 0; border-top: 1px solid #dce3eb; }
.gst-panel-grid .gst-product-image img { height: 290px; }
.gst-panel-grid .gst-product-info h4 { font-size: 1.2rem; font-weight: 800; line-height: 1.4; margin-bottom: 12px; }
.gst-panel-family { display: grid; grid-template-columns: 1fr 1.15fr; gap: 40px; margin-top: 28px; padding: 28px; background: #fff; border: 1px solid #e0e6ed; border-radius: 18px; align-items: center; }
.gst-panel-family-visual { margin: 0; min-width: 0; }
.gst-panel-family-visual a { display: block; border-radius: 12px; background: #faf9f7; padding: 18px; }
.gst-panel-family-visual img { display: block; width: 100%; height: 340px; object-fit: contain; mix-blend-mode: multiply; }
.gst-panel-family-visual figcaption { margin-top: 14px; color: #667589; font-size: .78rem; line-height: 1.6; }
.gst-panel-family-info { min-width: 0; }
.gst-panel-family-info .gst-product-code { color: #b52d0c; font-size: .75rem; font-weight: 800; }
.gst-panel-family-info h4 { font-size: 1.5rem; font-weight: 800; }
.gst-panel-family-info > p { color: #526175; line-height: 1.7; }
.gst-panel-models { width: 100%; margin: 20px 0 0; font-size: .9rem; }
.gst-panel-models caption { caption-side: top; padding: 0 0 10px; color: #526175; font-size: .8rem; }
.gst-panel-models th, .gst-panel-models td { padding: 14px 10px; border-bottom: 1px solid #e0e6ed; }
.gst-panel-models thead { background: #f1f4f7; color: #526175; }
.gst-panel-models td strong { font-size: 1.3rem; color: #14263d; }
.gst-panel-models a { color: #b52d0c; font-weight: 700; white-space: nowrap; }
.gst-panel-help { font-size: .8rem; margin: 14px 0 0; }
@media (max-width: 991px) { .gst-panel-family { grid-template-columns: 1fr; gap: 24px; } .gst-panel-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 575px) { .gst-panel-grid { grid-template-columns: 1fr; } .gst-panel-family { padding: 18px; } .gst-panel-family-visual img { height: 240px; } .gst-panel-models th, .gst-panel-models td { padding: 12px 6px; } }
.gst-accessory-grid { grid-template-columns: minmax(0, 760px); margin-top: 20px; }

.gst-core-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.gst-core-grid .gst-product-image { padding: 50px 16px 32px; }
.gst-core-grid .gst-product-image img { height: 190px; }
.gst-core-grid .gst-product-info { padding: 22px 18px; }
.gst-core-grid .gst-product-info h3 { font-size: 1.1rem; }
.gst-module-section, .gst-beam-section { margin-top: 64px; padding-top: 40px; border-top: 1px solid #dce3eb; }
.gst-subsection-heading { display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.gst-subsection-heading h3 { font-size: clamp(1.6rem, 3vw, 2.1rem); font-weight: 800; margin: 0; }
.gst-subsection-heading .gst-eyebrow { margin-bottom: 10px; }
.gst-count { flex-shrink: 0; border: 1px solid #dce3eb; color: #526175; border-radius: 999px; padding: 8px 14px; font-size: .8rem; }
.gst-subsection-intro { margin: 18px 0 0; max-width: 720px; color: #526175; }
.gst-module-grid .gst-product-image img { height: 205px; }
.gst-technical-note { padding: 18px 22px; margin: 24px 0 0; border-left: 3px solid #c8320f; background: #f5f7f9; font-size: .88rem; color: #526175; }
.gst-beam-layout { display: grid; grid-template-columns: 1.6fr 1fr; align-items: center; gap: 32px; margin-top: 28px; }
.gst-beam-detail h4 { font-size: 1.25rem; font-weight: 800; }
.gst-beam-detail p, .gst-beam-detail li { color: #526175; font-size: .95rem; line-height: 1.8; }
.gst-beam-detail ul { padding-left: 20px; margin-bottom: 0; }
.gst-beam-detail li + li { margin-top: 12px; }
@media (max-width: 1199px) { .gst-core-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .gst-beam-layout { grid-template-columns: 1fr; } }
@media (max-width: 991px) { .gst-module-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 575px) { .gst-core-grid, .gst-module-grid { grid-template-columns: 1fr; } .gst-subsection-heading { align-items: flex-start; flex-direction: column; gap: 12px; } .gst-module-section, .gst-beam-section { margin-top: 40px; } }