:root{--navy:#0a2540;--navy2:#0f3358;--ink:#16202c;--mute:#5b6878;--line:#e3e8ee;--bg:#f6f8fb;--white:#fff;
--cold:#1e88e5;--hot:#f4511e;--accent:#f4511e;--radius:10px;--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:"IBM Plex Sans Thai","IBM Plex Sans",system-ui,sans-serif;color:var(--ink);background:var(--white);line-height:1.65;font-size:16px}
img,svg{max-width:100%}a{color:inherit;text-decoration:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.thermal{height:4px;background:linear-gradient(90deg,var(--cold),#7cc4ff 30%,#ffd08a 65%,var(--hot))}
/* topbar */
.topbar{background:var(--navy);color:#c9d6e4;font-size:13.5px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;gap:12px;min-height:38px;flex-wrap:wrap}
.topbar a:hover{color:#fff}.topbar .tb-left{display:flex;gap:18px;flex-wrap:wrap}
.lang a{padding:2px 8px;border-radius:4px;font-weight:600}.lang a.on{background:#fff;color:var(--navy)}
/* header */
header.main{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
header.main .wrap{display:flex;align-items:center;justify-content:space-between;min-height:72px}
.logo{display:flex;align-items:center;gap:12px}
.logo-mark{width:46px;height:46px;border-radius:8px;background:var(--navy);color:#fff;display:grid;place-items:center;font-weight:700;letter-spacing:.5px;font-size:15px;position:relative;overflow:hidden}
.logo-mark:after{content:"";position:absolute;left:0;right:0;bottom:0;height:5px;background:linear-gradient(90deg,var(--cold),var(--hot))}
.logo-text b{display:block;font-size:16px;line-height:1.2;color:var(--navy)}.logo-text span{font-size:12px;color:var(--mute)}
nav.menu{display:flex;align-items:center;gap:4px}
nav.menu a{padding:10px 13px;font-weight:500;font-size:15px;border-radius:6px;color:var(--ink)}
nav.menu a:hover,nav.menu a.on{color:var(--accent)}
nav.menu a.cta{background:var(--accent);color:#fff;margin-left:8px;padding:10px 18px}
nav.menu a.cta:hover{background:#d8431a;color:#fff}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:6px;padding:8px 10px;font-size:20px;line-height:1;cursor:pointer}
/* hero */
.hero{background:radial-gradient(1200px 500px at 85% 0%,#174a7c 0%,var(--navy) 55%);color:#fff;overflow:hidden}
.hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;padding-top:72px;padding-bottom:72px}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:#ffb59c;border:1px solid rgba(255,181,156,.4);padding:5px 12px;border-radius:999px;margin-bottom:18px}
.hero h1{font-size:clamp(30px,4.4vw,48px);line-height:1.18;margin:0 0 18px;font-weight:700}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,#7cc4ff,#ffb08a);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{font-size:18px;color:#c9d6e4;margin:0 0 28px;max-width:560px}
.btns{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;padding:13px 24px;border-radius:8px;font-weight:600;font-size:15.5px;transition:.15s}
.btn.primary{background:var(--accent);color:#fff}.btn.primary:hover{background:#d8431a}
.btn.ghost{border:1px solid rgba(255,255,255,.4);color:#fff}.btn.ghost:hover{background:rgba(255,255,255,.1)}
.btn.dark{background:var(--navy);color:#fff}.btn.dark:hover{background:var(--navy2)}
.btn.line{border:1px solid var(--line);color:var(--navy)}.btn.line:hover{border-color:var(--navy)}
.hero-art{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:22px}
.hero-art small{display:block;color:#9fb3c8;font-size:12.5px;margin-top:8px;text-align:center}
.pagehead{background:var(--navy);color:#fff;padding:52px 0}
.pagehead h1{margin:0 0 8px;font-size:clamp(28px,4vw,40px)}.pagehead p{margin:0;color:#c9d6e4;max-width:720px}
.crumb{font-size:13.5px;color:#9fb3c8;margin-bottom:10px}.crumb a:hover{color:#fff}
/* sections */
section{padding:72px 0}section.alt{background:var(--bg)}
.sec-head{max-width:720px;margin:0 0 36px}.sec-head.center{margin:0 auto 40px;text-align:center}
.sec-head .k{color:var(--accent);font-weight:600;font-size:13.5px;letter-spacing:.08em;text-transform:uppercase}
.hero h1,.sec-head h2,.ctaband h2{text-wrap:balance}
.sec-head h2{font-size:clamp(24px,3.2vw,34px);line-height:1.25;margin:6px 0 10px;color:var(--navy)}
.sec-head p{color:var(--mute);margin:0}
.grid{display:grid;gap:22px}.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:.18s;display:flex;flex-direction:column}
a.card:hover,.card.hover:hover{border-color:#b9c6d6;box-shadow:0 10px 30px rgba(10,37,64,.08);transform:translateY(-2px)}
.card h3{margin:0 0 8px;font-size:19px;color:var(--navy)}.card p{margin:0;color:var(--mute);font-size:15px}
.card .more{margin-top:auto;padding-top:16px;color:var(--accent);font-weight:600;font-size:14.5px}
.tag{display:inline-block;font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;background:#eaf3fd;color:#1565c0;margin-bottom:12px;align-self:flex-start}
.tag.hot{background:#fdeee8;color:#c6401a}
.ico{width:48px;height:48px;border-radius:10px;background:#eaf3fd;color:#1565c0;display:grid;place-items:center;margin-bottom:16px}
.ico.hot{background:#fdeee8;color:#c6401a}.ico svg{width:26px;height:26px}
.brand{padding:34px;position:relative;overflow:hidden}
.brand:before{content:"";position:absolute;left:0;top:0;bottom:0;width:5px;background:linear-gradient(180deg,var(--cold),var(--hot))}
.brand .bn{font-size:30px;font-weight:700;color:var(--navy);letter-spacing:.02em;line-height:1.1}
.brand .bs{color:var(--mute);font-size:14px;margin:4px 0 14px}
.ph{aspect-ratio:4/3;border-radius:8px;background:repeating-linear-gradient(135deg,#eef2f7 0 12px,#e6ecf3 12px 24px);display:grid;place-items:center;color:#8896a6;font-size:12.5px;margin-bottom:16px;text-align:center;padding:10px}
.ph svg{width:64px;height:64px;opacity:.7;display:block;margin:0 auto 6px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:24px}
.fact{border-left:3px solid var(--accent);padding:4px 0 4px 14px}.fact b{display:block;font-size:24px;color:var(--navy);line-height:1.2}.fact span{font-size:13.5px;color:var(--mute)}
.ctaband{background:linear-gradient(100deg,var(--navy),#174a7c);color:#fff;padding:56px 0}
.ctaband .wrap{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.ctaband h2{margin:0 0 6px;font-size:28px}.ctaband p{margin:0;color:#c9d6e4}
.note{background:#fff8e6;border:1px dashed #e0b84c;color:#7a5b00;border-radius:8px;padding:12px 16px;font-size:14px;margin:0 0 24px}
table.info{width:100%;border-collapse:collapse;font-size:15px}table.info th,table.info td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
table.info th{width:36%;color:var(--mute);font-weight:500}
.person{text-align:center}.avatar{width:96px;height:96px;border-radius:50%;background:var(--bg);border:1px solid var(--line);margin:0 auto 14px;display:grid;place-items:center;color:var(--navy);font-weight:700;font-size:26px}
.person h3{margin:0}.person .role{color:var(--accent);font-size:14px;font-weight:600;margin:2px 0 8px}
.person a{color:var(--mute);font-size:14px;word-break:break-all}.person a:hover{color:var(--accent)}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:28px}.chips a{padding:7px 14px;border:1px solid var(--line);border-radius:999px;font-size:14px;color:var(--navy);background:#fff}.chips a:hover{border-color:var(--navy)}
/* form */
form.rfq{display:grid;grid-template-columns:1fr 1fr;gap:14px}
form.rfq .full{grid-column:1/-1}
form.rfq label{display:block;font-size:13.5px;font-weight:500;margin-bottom:5px;color:var(--ink)}
form.rfq input,form.rfq select,form.rfq textarea{width:100%;padding:11px 12px;border:1px solid #cfd8e3;border-radius:7px;font:inherit;background:#fff}
form.rfq input:focus,form.rfq select:focus,form.rfq textarea:focus{outline:2px solid #9ccaf5;border-color:var(--cold)}
form.rfq button{border:0;cursor:pointer;font-family:inherit}
.map{border:0;width:100%;height:340px;border-radius:var(--radius)}
/* footer */
footer{background:#071a2e;color:#a9b9ca;font-size:14.5px}
footer .cols{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;padding:56px 20px 40px}
footer h4{color:#fff;margin:0 0 14px;font-size:15px}footer ul{list-style:none;margin:0;padding:0}footer li{margin-bottom:8px}
footer a:hover{color:#fff}footer .copy{border-top:1px solid rgba(255,255,255,.1);padding:18px 20px;font-size:13px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.btn.sm{padding:10px 18px;font-size:14.5px}
.ph{position:relative;overflow:hidden;background:#f1f4f8}.ph img{width:100%;height:100%;object-fit:contain;display:block;padding:10px;mix-blend-mode:multiply}
.ph .fallback{display:none}.ph.noimg{background:repeating-linear-gradient(135deg,#eef2f7 0 12px,#e6ecf3 12px 24px)}.ph.noimg .fallback{display:block}
.ph.tall{aspect-ratio:1/1;margin-bottom:0}
.series{display:grid;grid-template-columns:340px 1fr;gap:36px;padding:32px;background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:26px;scroll-margin-top:140px}
.series>*{min-width:0}
.series h3{margin:0 0 8px;font-size:26px;color:var(--navy)}.series .lead{color:var(--ink);margin:0 0 14px}
ul.pts{margin:0 0 20px;padding:0;list-style:none}ul.pts li{position:relative;padding:5px 0 5px 26px;color:var(--mute);font-size:15px}
ul.pts li:before{content:"";position:absolute;left:4px;top:13px;width:9px;height:9px;border-radius:2px;background:linear-gradient(135deg,var(--cold),var(--hot))}
.tscroll{overflow-x:auto;margin-bottom:10px;border:1px solid var(--line);border-radius:8px}
table.spec{width:100%;border-collapse:collapse;font-size:14px;min-width:520px}table.spec th{background:var(--navy);color:#fff;text-align:left;padding:9px 12px;font-weight:500;white-space:nowrap}
table.spec td{padding:8px 12px;border-top:1px solid var(--line);white-space:nowrap}table.spec tbody tr:nth-child(even){background:#f8fafc}table.spec td:first-child{font-weight:600;color:var(--navy)}
.tnote{font-size:13px;color:var(--mute);margin:0 0 18px}.mini{font-size:13.5px!important;margin-top:10px!important}.mini b{color:var(--navy)}
.subh{font-size:20px;color:var(--navy);margin:36px 0 18px}
.subnav{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:72px;z-index:40}.subnav .chips{margin:0;padding-top:12px;padding-bottom:12px;flex-wrap:nowrap;overflow-x:auto}.subnav .chips a{white-space:nowrap}
section.strip{padding:34px 0;border-bottom:1px solid var(--line)}.facts.four{grid-template-columns:repeat(4,1fr);margin:0}.facts.four .fact b{font-size:22px}
.hero-photo{background:#2a2a2d;border-radius:10px;aspect-ratio:4/5;max-height:470px;margin:0 auto;display:grid;place-items:center;overflow:hidden}.hero-photo img{width:100%;height:100%;object-fit:cover}
.hero-photo .fallback{display:none;width:100%}.hero-photo.noimg{background:transparent}.hero-photo.noimg .fallback{display:block}
[id]{scroll-margin-top:140px}
@media(max-width:960px){.series{grid-template-columns:1fr;padding:22px}.series .s-img{max-width:340px}.facts.four{grid-template-columns:1fr 1fr}.subnav{top:72px}}
@media(max-width:960px){.g4{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(2,1fr)}.hero .wrap,.split{grid-template-columns:1fr}footer .cols{grid-template-columns:1fr 1fr}
.burger{display:block}nav.menu{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:10px 20px 18px}
nav.menu.open{display:flex}nav.menu a.cta{margin:8px 0 0;text-align:center}}
@media(max-width:600px){.g2,.g3,.g4,.facts,form.rfq{grid-template-columns:1fr}section{padding:52px 0}.hero .wrap{padding-top:48px;padding-bottom:48px}footer .cols{grid-template-columns:1fr}.topbar .tb-left span.hide-s{display:none}}

/* ---------- R2 ---------- */
.ph img{mix-blend-mode:multiply}
.tlabel{font-size:12.5px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--mute);margin:4px 0 8px}
.btn svg{width:18px;height:18px;vertical-align:-4px;margin-right:4px}
details.specsheet{grid-column:1/-1;border:1px solid var(--line);border-radius:12px;background:#fff;margin-top:6px}
details.specsheet>summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px 18px;background:var(--bg);border-radius:12px;color:var(--navy)}
details.specsheet>summary::-webkit-details-marker{display:none}
details.specsheet>summary:hover{background:#eef3f9}
details.specsheet[open]>summary{border-radius:12px 12px 0 0;border-bottom:1px solid var(--line)}
.ss-title{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.ss-title svg{width:22px;height:22px;color:var(--accent)}
.ss-title b{font-size:17px}.ss-sub{color:var(--mute);font-size:14px}
.ss-count{font-size:13px;color:var(--mute);display:flex;align-items:center;gap:10px;white-space:nowrap}
.ss-count:after{content:"";width:9px;height:9px;border-right:2px solid var(--navy);border-bottom:2px solid var(--navy);transform:rotate(45deg);margin:-4px 4px 0 2px;transition:.2s}
details[open] .ss-count:after{transform:rotate(225deg);margin-top:4px}
.ss-body{padding:16px 18px 20px}
.ss-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}
.ss-tabs button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:7px 15px;font:inherit;font-size:14px;color:var(--navy);cursor:pointer}
.ss-tabs button:hover{border-color:var(--navy)}.ss-tabs button.on{background:var(--navy);border-color:var(--navy);color:#fff}
table.sheet{border-collapse:separate;border-spacing:0;font-size:13.5px;width:100%;line-height:1.5}
table.sheet th,table.sheet td{padding:8px 12px;text-align:left;vertical-align:top;border-top:1px solid var(--line)}
table.sheet thead th{background:var(--navy);color:#fff;font-weight:500;white-space:nowrap;border-top:0}
table.sheet td{min-width:150px;font-variant-numeric:tabular-nums}
table.sheet tbody th[scope=row]{position:sticky;left:0;z-index:1;background:#fff;min-width:200px;max-width:240px;font-weight:600;color:var(--navy);box-shadow:1px 0 0 var(--line)}
table.sheet thead th.corner{position:sticky;left:0;z-index:2}
table.sheet tbody tr:nth-child(even) td,table.sheet tbody tr:nth-child(even) th[scope=row]{background:#f8fafc}
table.sheet tr.sec th{background:#eaf3fd!important;color:#1565c0;font-size:12.5px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;position:static}
table.sheet tr.sec .en{color:#5b86b8;font-weight:500;letter-spacing:0;text-transform:none;margin-left:6px}
table.sheet small{display:block;color:var(--mute);font-weight:400;font-size:12px;margin-top:2px}
table.sheet td.all{color:var(--ink)}
.opt{color:#c6401a;font-size:12.5px;white-space:nowrap}
.ss-foot{font-size:12.5px;color:var(--mute);margin:10px 0 14px}
/* gallery */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.shot{margin:0;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;display:flex;flex-direction:column}
.shot img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block}
.shot figcaption{padding:12px 16px;font-size:14.5px;color:var(--ink)}
.card .ph.photo{aspect-ratio:16/10;padding:0;margin:-26px -26px 16px;border-radius:var(--radius) var(--radius) 0 0}
.card .ph.photo img{object-fit:cover;padding:0;mix-blend-mode:normal}
/* form */
.formcard{padding:26px}
.hp{position:absolute!important;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap}.form-note{font-size:13px;color:var(--mute)}
form.rfq button[disabled]{opacity:.6;cursor:progress}
.form-msg{border-radius:8px;padding:12px 14px;font-size:14.5px}
.form-msg.ok{background:#e8f6ee;color:#1d6b3f;border:1px solid #b9e2c9}
.form-msg.err{background:#fdeee8;color:#9a3412;border:1px solid #f6c9b6}
.form-msg a{text-decoration:underline}
.linecard{flex-direction:row;align-items:center;gap:18px;margin-bottom:22px}.linecard img{border-radius:8px;border:1px solid var(--line);flex:none}
.foot-line{display:flex;align-items:center;gap:12px;margin-top:14px}.foot-line img{background:#fff;border-radius:6px;padding:4px}.foot-line small{color:#7f93a8}
/* inquiry dialog + floating button */
.fab{position:fixed;right:18px;bottom:calc(18px + env(safe-area-inset-bottom,0px));z-index:60;display:flex;align-items:center;gap:8px;background:var(--accent);color:#fff;padding:12px 18px;border-radius:999px;font-weight:600;font-size:15px;box-shadow:0 10px 26px rgba(244,81,30,.35)}
.fab:hover{background:#d8431a}.fab svg{width:20px;height:20px}
dialog.inq{border:0;padding:0;border-radius:14px;width:min(660px,calc(100% - 32px));max-height:calc(100% - 32px);box-shadow:0 30px 80px rgba(7,26,46,.35);color:var(--ink)}
dialog.inq::backdrop{background:rgba(7,26,46,.55)}
.inq-head{background:var(--navy);color:#fff;padding:18px 24px;display:flex;justify-content:space-between;align-items:flex-start;gap:12px;position:sticky;top:0;z-index:1}
.inq-head .k{font-size:12.5px;color:#ffb59c;letter-spacing:.04em}.inq-head h2{margin:2px 0 0;font-size:22px}
.inq-x{background:none;border:0;color:#fff;font-size:30px;line-height:1;cursor:pointer;padding:0 4px}
dialog.inq form{padding:20px 24px 24px}
@media(max-width:960px){.gallery{grid-template-columns:1fr 1fr}.gallery .shot:last-child{grid-column:1/-1}}
@media(max-width:600px){.gallery{grid-template-columns:1fr}.fab span{display:none}.fab{padding:14px}.linecard{flex-direction:column;align-items:flex-start}
table.sheet tbody th[scope=row]{min-width:150px;max-width:170px}table.sheet td{min-width:130px}}
@media print{.topbar,header.main,.thermal,.fab,footer,.ctaband{display:none}}