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:root{--navy:#061627;--navy-mid:#0a2540;--navy-light:#0e3a63;--ink:#0f1b2d;--muted:#4f6178;--blue:#0068d9;--ice:#7dd3fc;--sky:#38bdf8;--line-green:#067c3d;--pale:#f4f8ff;--border:#e2ebf6;--white:#fff;--radius:18px;--blue-gradient:linear-gradient(135deg, #0068d9, #0a2540);--ice-gradient:linear-gradient(135deg, #38bdf8, #7dd3fc);--shadow:0 14px 40px #0a25401f}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:84px}body{background:var(--white);color:var(--ink);-webkit-font-smoothing:antialiased;margin:0;font-family:Prompt,Noto Sans Thai,sans-serif;line-height:1.6}h1,h2,h3,p,figure,dl,dd{margin:0}h1,h2,h3{line-height:1.27}a{color:inherit;text-decoration:none}ul{margin:0;padding:0;list-style:none}button{font:inherit;color:inherit;cursor:pointer}img{max-width:100%;display:block}:focus-visible{outline:3px solid var(--blue);outline-offset:5px}.dark :focus-visible,.site-header :focus-visible,.photo-viewer 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img{width:100%;height:auto}.projects{background:var(--navy)}.gallery-filters{flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:34px;display:flex}.gallery-filters button{color:#0b4074;background:#eaf2ff;border:1px solid #d3e1f3;border-radius:999px;padding:9px 17px;font-size:.9rem;font-weight:500}.gallery-filters button:hover{background:#d8e9ff}.gallery-filters button[aria-pressed=true]{background:var(--blue-gradient);color:var(--white);border-color:#0000}.dark .gallery-filters button{color:#eaf3ff;background:#ffffff14;border-color:#fff3}.dark .gallery-filters button:hover{background:#ffffff26}.dark .gallery-filters button[aria-pressed=true]{background:var(--ice-gradient);color:var(--navy);border-color:#0000}.photo-grid{columns:3;column-gap:16px}.photo-card{break-inside:avoid;margin-bottom:16px}.projects .photo-card{background:var(--navy-mid)}.photo-card img{transition:transform .3s}.photo-card:hover 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small{color:#d4e2f1;display:block}.contact-card strong{font-size:1.15rem}.contact-card .contact-company{font-size:1rem}.site-footer{background:var(--navy);padding:48px 0 22px}.footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:32px;display:grid}.footer-grid h2{margin-bottom:12px;font-size:1rem}.footer-grid p,.footer-grid ul{color:#bdccdc;font-size:.92rem}.footer-grid ul{gap:6px;display:grid}.footer-grid p{max-width:360px;margin-top:10px}.copyright{text-align:center;color:#a8bace;border-top:1px solid #ffffff26;padding-top:18px;font-size:.83rem}.contact-shortcuts{z-index:8;right:20px;bottom:max(20px, env(safe-area-inset-bottom));gap:12px;display:grid;position:fixed}.shortcut{aspect-ratio:1;width:56px;color:var(--white);border-radius:50%;place-items:center;transition:transform .2s;display:grid;box-shadow:0 8px 22px #06162745}.shortcut:hover{transform:scale(1.08)}.shortcut svg{width:26px;height:26px}@media 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auto;overflow:auto}.nav-links.is-open{display:flex}.nav-links>a:not(.nav-call){padding-block:4px;font-size:1.02rem;display:block}.nav-links>a:not(.nav-call):hover{color:var(--blue)}.nav-links :focus-visible{outline-color:var(--blue)}.two-column{grid-template-columns:1fr;gap:28px}.stats-grid,.product-cards{grid-template-columns:repeat(2,minmax(0,1fr))}.photo-grid{columns:2}}@media (max-width:640px){.section{padding-block:54px}.section-heading{margin-bottom:30px}.hero{padding:118px 0 62px}.hero-visual{width:min(94%,320px)}.hero h1{font-size:clamp(1.8rem,8.4vw,2.55rem)}.system-list{gap:8px}.system-list li{padding-inline:12px}.cooling-core{width:118px}.cooling-core svg{width:58px;height:58px}.visual-chip{padding:6px 11px;font-size:.76rem}.hero-badge{padding:11px 14px;left:0}.hero-badge strong{font-size:1.5rem}.hero .button{max-width:100%}.service-cards,.advantage-cards,.footer-grid{grid-template-columns:1fr}.footer-grid{gap:23px}.contact-shortcuts{right:12px;bottom:max(12px, env(safe-area-inset-bottom));gap:8px}.shortcut{width:46px}.shortcut svg{width:22px;height:22px}.photo-grid{columns:1}.photo-viewer{padding-inline:12px}.photo-viewer img{max-height:calc(100dvh - 176px)}.viewer-prev,.viewer-next{top:auto;bottom:16px;transform:none}.viewer-prev{left:calc(50% - 56px)}.viewer-next{right:calc(50% - 56px)}}@media (max-width:380px){.wrap{padding-inline:16px}.product-cards,.building-grid{grid-template-columns:1fr}.contact-card,.areas-card{padding:20px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition:none!important;animation:none!important}.cooling-ring:before,.cooling-ring:after{display:none}}