:root{--navy:#0B2545;--navy2:#13315C;--ink2:#3A4A60;--mute:#5B6B80;--line:#E3E8EF;--soft:#F4F7FB;--sun:#F5B700;--cream:#FFF8E1;--mint:#E8F6EE;--green:#1B8A5A;--line-green:#06C755;--foot:#071A33}
*{box-sizing:border-box}
[hidden]{display:none!important}
section[id]{scroll-margin-top:120px}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:'IBM Plex Sans Thai',system-ui,sans-serif;color:var(--navy);background:#fff;font-size:17px;line-height:1.7}
img{max-width:100%;display:block}
a{color:var(--navy)}a:hover{color:var(--navy2)}
h1,h2,h3{line-height:1.3;margin:0}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px}
.sec{padding:64px 0}.sec.soft{background:var(--soft)}.sec.cream{background:var(--cream)}
.sec h2{font-size:clamp(28px,4vw,38px);font-weight:700;margin-bottom:24px}
.muted{color:var(--ink2)}.small{font-size:15px;color:var(--mute)}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 24px;border-radius:10px;font-weight:700;font-size:17px;text-decoration:none;border:2px solid transparent;cursor:pointer;font-family:inherit;line-height:1.2}
.btn-sun{background:var(--sun);color:var(--navy)}.btn-sun:hover{background:#e0a800;color:var(--navy)}
.btn-navy{background:var(--navy);color:#fff}.btn-navy:hover{background:var(--navy2);color:#fff}
.btn-line{background:var(--line-green);color:#fff}.btn-line:hover{background:#05a648;color:#fff}
.btn-ghost{border-color:var(--navy);color:var(--navy);background:transparent}
.row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.grid{display:grid;gap:24px;grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr))}
/* header */
.hdr{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:20}
.hdr .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:68px;flex-wrap:wrap;padding-top:8px;padding-bottom:8px}
.logo img{height:44px;width:auto}
.nav{display:flex;gap:22px;flex-wrap:wrap;font-size:16px}.nav a{text-decoration:none;font-weight:500}.nav a[aria-current]{border-bottom:2px solid var(--sun)}
.hdr .cta{display:flex;gap:10px;align-items:center}.hdr .tel{font-weight:600;text-decoration:none;white-space:nowrap}
@media(max-width:860px){.nav{order:3;width:100%;gap:16px;overflow-x:auto;flex-wrap:nowrap;padding-bottom:4px;white-space:nowrap}.hdr .tel{display:none}}
/* hero */
.hero{background:var(--cream)}.hero .wrap{display:flex;flex-wrap:wrap;gap:40px;align-items:center;padding-top:48px;padding-bottom:48px}
.hero .txt{flex:1 1 400px;min-width:0;display:flex;flex-direction:column;gap:18px;align-items:flex-start}
.hero h1{font-size:clamp(34px,5.5vw,52px);font-weight:700}
.hero p{margin:0;font-size:20px;color:var(--ink2)}
.hero .pic{flex:1 1 440px;min-width:0}.hero .pic img{width:100%;height:clamp(240px,40vw,420px);object-fit:cover;border-radius:20px}
.page-hero{background:var(--cream);padding:48px 0}.page-hero h1{font-size:clamp(30px,5vw,46px)}.page-hero p{margin:8px 0 0;color:var(--ink2);font-size:19px}
/* price */
.seg{display:inline-flex;gap:6px;background:#F1F4F8;padding:6px;border-radius:12px}
.seg button{min-height:44px;padding:0 18px;border:0;border-radius:8px;font:inherit;font-size:16px;font-weight:600;cursor:pointer;background:transparent;color:var(--navy)}
.seg button[aria-pressed=true]{background:var(--navy);color:#fff}
.pkg{border:2px solid var(--line);border-radius:18px;padding:28px;display:flex;flex-direction:column;gap:10px}
.pkg.pop{border-color:var(--sun)}
.pkg .kw{font-size:44px;font-weight:700;line-height:1.1}.pkg .price{font-size:28px;font-weight:700}
.pkg .meta{border-top:1px solid var(--line);padding-top:10px;color:var(--ink2);font-size:16px}
.pkg .btn{margin-top:auto}
/* on-grid vs hybrid */
.sys{background:#fff;border-radius:18px;padding:28px;display:flex;flex-direction:column;gap:20px}
.sys h3{font-size:26px}.sys h3 span{font-size:17px;font-weight:500;color:var(--ink2)}
.flow{display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-size:15px;font-weight:600;text-align:center}
.flow .n{display:flex;flex-direction:column;align-items:center;gap:6px;width:76px}.flow .ar{font-size:22px;color:#9AA8BA}
.note{border-radius:12px;padding:12px 16px;font-size:17px}.note.sun{background:var(--cream)}.note.mint{background:var(--mint)}
.sys ul{margin:0;padding-left:22px;font-size:17px;line-height:1.9}
.batt{display:flex;gap:16px;align-items:center}.batt img{width:96px;height:128px;object-fit:cover;border-radius:10px}
.helper{background:var(--navy);color:#fff;border-radius:18px;padding:28px;display:flex;flex-wrap:wrap;gap:28px;align-items:center;margin-top:24px}
.helper .q{flex:999 1 400px;min-width:0;display:flex;flex-direction:column;gap:16px}
.helper .qr{display:flex;flex-wrap:wrap;gap:10px;align-items:center;font-size:18px}.helper .qr span{min-width:230px}
.helper .yn{min-height:44px;min-width:72px;border-radius:8px;font:inherit;font-weight:600;cursor:pointer;background:transparent;color:#fff;border:2px solid #3D5A80}
.helper .yn[aria-pressed=true]{background:var(--sun);color:var(--navy);border-color:var(--sun)}
.helper .ans{flex:1 1 260px;min-width:0;background:#fff;color:var(--navy);border-radius:14px;padding:22px}
.helper .ans b{display:block;font-size:32px}
/* cards */
.card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:16px}
.card h3{font-size:19px;margin-top:12px}.card p{margin:2px 0 0;color:var(--ink2);font-size:16px}
.ben{border:1px solid var(--line);border-radius:16px;padding:26px}.ben h3{font-size:21px;margin-bottom:6px}.ben p{margin:0;color:var(--ink2)}
.steps{counter-reset:s}.step{display:flex;gap:18px;padding:18px 0;border-top:1px solid var(--line)}.step:before{counter-increment:s;content:"0" counter(s);font-size:30px;font-weight:700;color:#C98F00;min-width:46px}
.step h3{font-size:20px}.step p{margin:0;color:var(--ink2)}
.brands{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));align-items:center}
.brands img{width:100%;height:56px;object-fit:contain}
.post{display:flex;flex-direction:column;gap:6px;text-decoration:none}.post img{aspect-ratio:3/2;object-fit:cover;border-radius:14px}.post h3{font-size:19px}.post p{margin:0;color:var(--ink2);font-size:16px}
.article{max-width:760px}.article img{border-radius:16px;margin:20px 0}.article p{font-size:18px}
details{border-top:1px solid var(--line);padding:16px 0}details:last-child{border-bottom:1px solid var(--line)}
summary{font-size:19px;font-weight:600;cursor:pointer}details p{margin:8px 0 0;color:var(--ink2)}
.band{background:var(--sun)}.band .wrap{display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between;padding-top:40px;padding-bottom:40px}.band p{margin:0;font-size:clamp(22px,3vw,28px);font-weight:700}
.ftr{background:var(--foot);color:#C7D3E3;font-size:15px}.ftr .wrap{display:flex;flex-wrap:wrap;gap:28px;justify-content:space-between;padding-top:40px;padding-bottom:40px}
.ftr a{color:#fff}.ftr b{color:#fff;font-size:18px}.ftr nav{display:flex;gap:16px;flex-wrap:wrap}
.contact-list{display:grid;gap:16px}.contact-list div{border:1px solid var(--line);border-radius:14px;padding:18px 20px}.contact-list b{display:block;font-size:15px;color:var(--mute);font-weight:500}
.contact-list a,.contact-list span{font-size:20px;font-weight:600}
/* ---- design fixes 2026-10-08 ---- */
.nav{scrollbar-width:none}.nav::-webkit-scrollbar{display:none}
.brands{grid-template-columns:repeat(10,minmax(0,1fr));gap:20px}
@media(max-width:1000px){.brands{grid-template-columns:repeat(5,minmax(0,1fr))}}
@media(max-width:600px){.brands{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:18px}}
.grid.brandgrid{grid-template-columns:repeat(5,minmax(0,1fr))}.brandgrid .ben{padding:20px 14px}
@media(max-width:900px){.grid.brandgrid{grid-template-columns:repeat(2,minmax(0,1fr))}}
/* instalment plan (2026-10-08) */
.pkg .inst-tag{align-self:flex-start;background:var(--mint);color:#146C46;font-weight:600;font-size:15px;padding:2px 12px;border-radius:999px}
.inst{margin-top:24px;background:var(--mint);border:2px solid var(--green);border-radius:18px;padding:24px 28px;display:flex;flex-wrap:wrap;gap:16px 28px;align-items:center;justify-content:space-between}
.inst>div{flex:1 1 420px;min-width:0}.inst h3{font-size:clamp(21px,2.6vw,26px);color:#146C46}.inst p{margin:6px 0 0;color:var(--ink2)}
@media(max-width:600px){.inst{padding:20px}.inst .btn{width:100%;text-align:center}}
.posts{display:grid;gap:24px;grid-template-columns:repeat(auto-fit,minmax(min(100%,230px),1fr))}
@media(max-width:600px){
 .sys{padding:20px}
 .flow{flex-wrap:nowrap;gap:2px;font-size:12px;line-height:1.35}
 .flow .n{width:auto;flex:1 1 0;min-width:0}
 .flow svg{width:30px;height:30px}
 .flow .ar{font-size:15px;flex:0 0 auto}
 .brands{gap:10px}.brands img{height:40px}
}
.article h2{font-size:24px;margin:32px 0 10px}.article ul,.article ol{font-size:18px;padding-left:24px}.article li{margin:4px 0}
.article table{width:100%;border-collapse:collapse;font-size:16px;margin:12px 0;display:block;overflow-x:auto}
.article th,.article td{border-bottom:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.article th{background:var(--soft)}.article .btn{margin-top:12px}
/* project galleries */
.gal{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(min(100%,230px),1fr))}
.gal img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:12px}
.gal a:hover img{opacity:.9}
h2.stage{font-size:22px;margin:32px 0 12px;display:inline-block;padding:4px 14px;border-radius:999px;background:var(--cream);color:#7A5600}
a.card:hover h3{text-decoration:underline}
/* about page (photo-led) */
.about-hero{position:relative;min-height:min(78vh,620px);display:flex;align-items:flex-end;color:#fff;overflow:hidden;background:var(--navy)}
.about-hero>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.about-hero:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,26,51,.15) 0%,rgba(7,26,51,.35) 45%,rgba(7,26,51,.85) 100%)}
.about-hero .wrap{position:relative;z-index:1;padding-top:120px;padding-bottom:56px;width:100%}
.about-hero h1{font-size:clamp(36px,7vw,64px);color:#fff;line-height:1.1;text-shadow:0 2px 18px rgba(0,0,0,.35)}
.about-hero p{font-size:clamp(18px,2.4vw,22px);margin:12px 0 24px;max-width:640px;color:#F3F6FA}
.about-hero .cta{display:flex;flex-wrap:wrap;gap:12px}
.btn-ghost.light{border-color:#fff;color:#fff}.btn-ghost.light:hover{background:rgba(255,255,255,.12);color:#fff}
.about-intro{display:grid;gap:40px;grid-template-columns:1.1fr .9fr;align-items:center}
.about-intro figure{margin:0}.about-intro figure img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:22px;box-shadow:0 18px 40px rgba(11,37,69,.18)}
.about-intro figcaption{font-size:15px;color:var(--mute);margin-top:10px}
.ticks{list-style:none;padding:0;margin:0}.ticks li{position:relative;padding:8px 0 8px 38px;font-size:18px}
.ticks li:before{content:"";position:absolute;left:0;top:10px;width:24px;height:24px;border-radius:50%;background:var(--sun) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6 12.5l4 4 8-9' fill='none' stroke='%230B2545' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/16px no-repeat}
.mosaic{display:grid;gap:12px;grid-template-columns:repeat(4,1fr);grid-auto-rows:200px}
.mosaic img{width:100%;height:100%;object-fit:cover;border-radius:16px}
.mosaic{grid-template-rows:200px 200px 280px}
.mosaic .t1{grid-column:span 2;grid-row:span 2}.mosaic .t6{grid-column:1/-1}
.psteps{display:grid;gap:20px;grid-template-columns:repeat(4,1fr)}
.pstep{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden}
.pstep img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block}
.pstep>div{padding:16px 18px 20px}.pstep .n{display:inline-block;background:var(--sun);color:var(--navy);font-weight:700;border-radius:8px;padding:2px 10px;font-size:15px;margin-bottom:8px}
.pstep h3{font-size:20px;margin:0 0 6px}.pstep p{margin:0;color:var(--ink2)}
.about-band{position:relative;overflow:hidden;color:#fff;background:var(--navy)}
.about-band>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.about-band:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,26,51,.9) 0%,rgba(7,26,51,.6) 55%,rgba(7,26,51,.25) 100%)}
.about-band .wrap{position:relative;z-index:1;padding-top:96px;padding-bottom:96px}
.about-band p{font-size:clamp(20px,2.6vw,26px);font-weight:600;max-width:680px;margin:0 0 24px;line-height:1.6}
@media (max-width:900px){.about-intro{grid-template-columns:1fr}.about-intro figure img{aspect-ratio:4/3}.psteps{grid-template-columns:repeat(2,1fr)}.mosaic{grid-template-columns:repeat(2,1fr);grid-template-rows:none;grid-auto-rows:150px}}
@media (max-width:560px){.psteps{grid-template-columns:1fr}.about-hero{min-height:520px}.about-hero .wrap{padding-bottom:36px}.about-band .wrap{padding-top:64px;padding-bottom:64px}}
/* cookie consent banner (PDPA, 2026-10-08) — accept and reject equally easy */
.cookie{position:fixed;left:16px;right:16px;bottom:16px;z-index:50;max-width:760px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 10px 30px rgba(11,37,69,.18);padding:18px 20px;display:flex;flex-wrap:wrap;gap:12px 20px;align-items:center}
.cookie p{margin:0;flex:1 1 360px;font-size:15px;line-height:1.6;color:var(--ink2)}.cookie p b{color:var(--navy)}
.cookie-btns{display:flex;gap:10px;flex:0 0 auto}.cookie .btn{min-height:44px;padding:0 22px}
@media(max-width:600px){.cookie-btns{width:100%}.cookie-btns .btn{flex:1}}
.ftr button.linklike{background:none;border:0;padding:0;font:inherit;color:#fff;text-decoration:underline;cursor:pointer}