:root {
  --navy: #0f1f2e;
  --navy2: #172b3d;
  --teal: #1b7a8c;
  --orange: #d85a00;
  --orange2: #f06a10;
  --warm: #f7f5f2;
  --warm2: #ede9e2;
  --warm3: #ddd8cf;
  --text: #1a1a1a;
  --text2: #4a5568;
  --text3: #7c8796;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: Arial, "Noto Sans", "Noto Sans Thai", sans-serif; color: var(--text); background: var(--warm); line-height: 1.65; }
a { color: inherit; }
img { max-width: 100%; display: block; }
.top { position: sticky; top: 0; z-index: 20; background: var(--navy); color: white; }
.nav { max-width: 1240px; margin: 0 auto; min-height: 64px; padding: 10px 32px; display: flex; align-items: center; gap: 28px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; min-width: 220px; }
.logo-mark { width: 36px; height: 36px; border-radius: 4px; background: var(--orange); display: grid; place-items: center; flex: 0 0 36px; }
.logo-mark svg { width: 20px; height: 20px; }
.brand-name { font-weight: 800; line-height: 1.2; }
.brand-sub { display: block; color: rgba(255,255,255,.48); font-size: .72rem; font-weight: 500; margin-top: 1px; }
.main-nav { display: flex; gap: 2px; flex: 1; }
.main-nav a { text-decoration: none; color: rgba(255,255,255,.68); padding: 8px 12px; border-radius: 4px; font-size: .9rem; }
.main-nav a:hover { background: rgba(255,255,255,.08); color: white; }
.lang { display: flex; align-items: center; gap: 6px; color: rgba(255,255,255,.45); font-size: .72rem; font-weight: 800; letter-spacing: .06em; }
.lang a { color: rgba(255,255,255,.78); text-decoration: none; border: 1px solid rgba(255,255,255,.16); border-radius: 999px; padding: 5px 8px; line-height: 1; }
.lang a.active { color: white; background: var(--orange); border-color: var(--orange); }
.nav-cta { background: var(--orange); color: white; text-decoration: none; border-radius: 4px; padding: 10px 20px; font-weight: 800; white-space: nowrap; }
.nav-cta:hover { background: var(--orange2); }

.hero { background: linear-gradient(100deg, rgba(10,23,34,.92) 0%, rgba(15,31,46,.78) 33%, rgba(15,31,46,.36) 62%, rgba(15,31,46,.12) 100%), url("assets/product-hero.png") center center / cover no-repeat; color: white; position: relative; overflow: hidden; min-height: calc(100vh - 64px); display: flex; align-items: center; }
.hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,.08), rgba(0,0,0,.18)); pointer-events: none; }
.hero-inner { position: relative; width: 100%; max-width: 1240px; margin: 0 auto; padding: 92px 32px 82px; display: flex; align-items: center; }
.hero-inner > div:first-child { max-width: 660px; }
.eyebrow { display: inline-flex; align-items: center; width: fit-content; color: #f0a060; border: 1px solid rgba(216,90,0,.46); background: rgba(216,90,0,.16); border-radius: 999px; padding: 5px 13px; font-size: .72rem; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
h1 { margin: 20px 0 16px; font-size: clamp(2.45rem, 5.4vw, 4.8rem); line-height: 1.06; letter-spacing: 0; }
.hero-lead { margin: 0 0 28px; max-width: 650px; color: rgba(255,255,255,.76); font-size: 1.08rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; padding: 12px 24px; text-decoration: none; border-radius: 6px; background: var(--orange); color: white; font-weight: 900; }
.button.secondary { background: transparent; border: 1px solid rgba(255,255,255,.3); }
.hero-card { border-radius: 8px; overflow: hidden; box-shadow: 0 18px 54px rgba(0,0,0,.28); background: var(--warm); }
.hero-card img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.hero .hero-card { display: none; }

.features { background: white; border-bottom: 1px solid var(--warm3); }
.features-inner { max-width: 1240px; margin: 0 auto; padding: 26px 32px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.feature { padding: 0 20px; border-right: 1px solid var(--warm3); }
.feature:first-child { padding-left: 0; }
.feature:last-child { border-right: 0; padding-right: 0; }
.feature strong { display: block; color: var(--navy); margin-bottom: 4px; }
.feature span { color: var(--text2); font-size: .92rem; }

.section { padding: 76px 0; }
.section.white { background: white; }
.section.navy { background: var(--navy); color: white; }
.wrap { max-width: 1240px; margin: 0 auto; padding: 0 32px; }
.split { display: grid; grid-template-columns: 500px 1fr; gap: 70px; align-items: center; }
.split.reverse { grid-template-columns: 1fr 520px; }
.section-img { border-radius: 8px; overflow: hidden; box-shadow: 0 10px 32px rgba(0,0,0,.16); background: var(--warm2); }
.section-img img { width: 100%; height: 100%; object-fit: cover; }
.about-img { aspect-ratio: 5 / 4; }
.process-img { aspect-ratio: 4 / 3; }
h2 { margin: 12px 0 14px; color: var(--navy); font-size: clamp(2rem, 3.7vw, 3rem); line-height: 1.14; letter-spacing: 0; }
.navy h2 { color: white; }
.sub { color: var(--text2); max-width: 680px; margin: 0 0 26px; }
.navy .sub { color: rgba(255,255,255,.66); }
.points { display: grid; gap: 14px; margin-top: 26px; }
.point { display: grid; grid-template-columns: 12px 1fr; gap: 14px; align-items: start; }
.dot { width: 8px; height: 8px; background: var(--orange); border-radius: 50%; margin-top: 9px; }
.point strong { color: var(--navy); }
.navy .point strong { color: white; }
.point span { display: block; color: var(--text2); font-size: .95rem; }
.navy .point span { color: rgba(255,255,255,.62); }

.product-img { border-radius: 8px; overflow: hidden; box-shadow: 0 10px 32px rgba(0,0,0,.14); margin-top: 34px; }
.product-img img { width: 100%; }
.product-note { margin: 24px 0 0; padding: 16px 0 18px; border-bottom: 1px solid var(--warm3); display: grid; grid-template-columns: auto 1fr; gap: 14px; align-items: center; color: var(--text2); }
.swatches { display: flex; }
.swatches span { width: 24px; height: 24px; border-radius: 50%; border: 2px solid var(--warm); box-shadow: 0 0 0 1px rgba(0,0,0,.12); margin-right: -6px; }
.properties-head { display: grid; grid-template-columns: 1fr minmax(280px, 460px); gap: 28px; align-items: end; margin-top: 28px; }
.properties-head h3 { margin: 8px 0 0; font-size: 1.65rem; color: var(--navy); line-height: 1.2; }
.properties-head p { margin: 0; color: var(--text2); }
.property-grid { display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); gap: 12px; margin-top: 26px; }
.property { border: 1px solid var(--warm3); background: var(--warm); border-radius: 8px; padding: 16px; }
.label { display: block; color: var(--teal); font-size: .68rem; letter-spacing: .08em; text-transform: uppercase; font-weight: 900; }
.value { display: block; color: var(--navy); font-size: 1.35rem; line-height: 1.15; font-weight: 900; margin-top: 8px; }

.steps { display: grid; gap: 0; }
.step { display: grid; grid-template-columns: 44px 1fr; gap: 16px; padding: 18px 0; border-bottom: 1px solid rgba(255,255,255,.1); }
.step:last-child { border-bottom: 0; }
.num { width: 40px; height: 40px; border-radius: 50%; border: 1px solid rgba(255,255,255,.18); display: grid; place-items: center; color: rgba(255,255,255,.54); font-weight: 900; }
.step strong { color: white; display: block; margin-bottom: 3px; }
.step span { color: rgba(255,255,255,.62); }

.gallery-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 12px; margin-top: 34px; }
.gallery-item { position: relative; overflow: hidden; border-radius: 8px; background: var(--warm2); }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; }
.g-hero { grid-column: span 12; aspect-ratio: 16 / 9; }
.g-third { grid-column: span 4; aspect-ratio: 3 / 2; }
.caption { position: absolute; left: 0; right: 0; bottom: 0; padding: 16px; background: linear-gradient(transparent, rgba(0,0,0,.72)); color: white; font-size: .86rem; }

.contact-box { margin-top: 34px; background: white; border: 1px solid var(--warm3); border-radius: 8px; padding: 42px; display: grid; grid-template-columns: 1fr auto; gap: 26px; align-items: center; box-shadow: 0 8px 28px rgba(0,0,0,.08); }
.contact-box p { color: var(--text2); margin: 0 0 16px; max-width: 720px; }
.contact-methods { display: grid; gap: 10px; }
.email { color: var(--navy); font-size: clamp(1.45rem, 3vw, 2.2rem); font-weight: 900; text-decoration: none; word-break: break-word; }
.email-note { color: var(--navy); font-size: clamp(1.05rem, 2vw, 1.35rem); font-weight: 900; line-height: 1.35; }
.whatsapp-qr-card { display: inline-flex; align-items: center; gap: 12px; max-width: 380px; color: var(--navy); text-decoration: none; background: #f4fbf6; border: 1px solid rgba(31,168,85,.22); border-radius: 8px; padding: 12px; }
.whatsapp-qr-card:hover { border-color: rgba(31,168,85,.45); }
.whatsapp-qr { width: 92px; height: 92px; flex: 0 0 auto; background: white; border: 1px solid var(--warm3); border-radius: 6px; padding: 6px; }
.whatsapp-qr-copy strong { display: block; color: #126f3c; font-size: 1rem; font-weight: 900; margin-bottom: 4px; }
.whatsapp-qr-copy span { display: block; color: var(--text2); font-size: .88rem; line-height: 1.35; }
.contact-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 12px; }
.button.whatsapp-button { background: #1fa855; }
.button.whatsapp-button:hover { background: #168a45; }
.whatsapp-float { position: fixed; right: 18px; bottom: 18px; z-index: 60; display: flex; flex-direction: column; gap: 2px; background: #1fa855; color: white; text-decoration: none; border-radius: 8px; padding: 10px 14px; box-shadow: 0 12px 32px rgba(0,0,0,.22); line-height: 1.15; }
.whatsapp-float span { font-size: .72rem; font-weight: 800; text-transform: uppercase; letter-spacing: .06em; opacity: .82; }
.whatsapp-float strong { font-size: .92rem; font-weight: 900; }
.whatsapp-float:hover { background: #168a45; }
.meta { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 20px; }
.meta-card { background: white; border: 1px solid var(--warm3); border-radius: 8px; padding: 18px; }
.meta-card strong { display: block; color: var(--navy); margin-bottom: 6px; }
.meta-card span, .meta-card a { color: var(--text2); text-decoration: none; }
footer { background: #0a1722; color: rgba(255,255,255,.5); padding: 34px 0; }
.footer-inner { max-width: 1240px; margin: 0 auto; padding: 0 32px; display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap; }
.footer-inner a { color: rgba(255,255,255,.72); text-decoration: none; }

.landing-hero { background: linear-gradient(100deg, rgba(10,23,34,.94), rgba(15,31,46,.72) 52%, rgba(15,31,46,.28)), url("assets/product-hero.png") center center / cover no-repeat; min-height: 520px; }
.landing-hero .hero-inner { padding-top: 96px; padding-bottom: 96px; }
.landing-kicker { color: rgba(255,255,255,.62); font-weight: 800; letter-spacing: .08em; text-transform: uppercase; font-size: .76rem; }
.trust-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 28px; }
.trust-card { background: white; border: 1px solid var(--warm3); border-radius: 8px; padding: 20px; }
.trust-card strong { display: block; color: var(--navy); margin-bottom: 6px; }
.trust-card span { color: var(--text2); font-size: .95rem; }
.buyer-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 28px; }
.buyer-card { border: 1px solid var(--warm3); border-radius: 8px; padding: 22px; background: var(--warm); }
.buyer-card strong { display: block; color: var(--navy); margin-bottom: 8px; }
.buyer-card span { color: var(--text2); font-size: .95rem; }
.inquiry-list { display: grid; gap: 12px; margin: 24px 0 0; padding: 0; list-style: none; }
.inquiry-list li { display: grid; grid-template-columns: 28px 1fr; gap: 12px; align-items: start; color: var(--text2); }
.inquiry-list li::before { content: attr(data-step); width: 28px; height: 28px; border-radius: 50%; background: var(--orange); color: white; display: grid; place-items: center; font-size: .78rem; font-weight: 900; }
.faq-block { margin-top: 34px; }
.faq-block h3 { color: var(--navy); font-size: 1.6rem; line-height: 1.2; margin: 0 0 14px; }
.faq-list { display: grid; gap: 10px; }
.faq-list details { border: 1px solid var(--warm3); border-radius: 8px; background: white; padding: 16px 18px; }
.faq-list summary { color: var(--navy); cursor: pointer; font-weight: 900; }
.faq-list p { color: var(--text2); margin: 10px 0 0; }
.keyword-strip { background: #0a1722; color: rgba(255,255,255,.7); }
.keyword-strip .wrap { display: flex; flex-wrap: wrap; gap: 8px; padding-top: 22px; padding-bottom: 22px; }
.keyword-strip span { border: 1px solid rgba(255,255,255,.16); border-radius: 999px; padding: 6px 10px; font-size: .84rem; }
.landing-links { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 24px; }
.landing-link { text-decoration: none; background: white; border: 1px solid var(--warm3); border-radius: 8px; padding: 16px; color: var(--navy); font-weight: 900; }
.landing-link span { display: block; color: var(--text2); font-weight: 400; font-size: .9rem; margin-top: 4px; }

@media (max-width: 1040px) {
  .trust-grid, .buyer-grid, .landing-links { grid-template-columns: repeat(2, 1fr); }
  .landing-hero { min-height: auto; }
}
@media (max-width: 560px) {
  .trust-grid, .buyer-grid, .landing-links { grid-template-columns: 1fr; }
  .landing-hero .hero-inner { padding-top: 52px; padding-bottom: 58px; }
  .keyword-strip .wrap { padding-left: 20px; padding-right: 20px; }
}

@media (max-width: 1040px) {
  .nav { gap: 14px; padding: 10px 24px; flex-wrap: wrap; }
  .brand { min-width: 0; }
  .main-nav { display: none; }
  .lang { order: 3; flex-basis: 100%; overflow-x: auto; padding-bottom: 2px; }
  .nav-cta { margin-left: auto; }
  .hero { display: block; min-height: auto; background: var(--navy); padding: 0; }
  .hero::before { display: none; }
  .hero-inner { max-width: none; padding: 0; display: flex; flex-direction: column; align-items: stretch; }
  .hero-inner > div:first-child { order: 2; max-width: 620px; padding: 48px 28px 72px; }
  .hero .hero-card { display: block; order: 1; border-radius: 0; box-shadow: none; background: var(--warm); }
  .hero-card img { height: clamp(200px, 52vw, 330px); aspect-ratio: auto; object-fit: cover; object-position: center; }
  .split, .split.reverse { grid-template-columns: 1fr; }
  .features-inner { grid-template-columns: repeat(2, 1fr); gap: 18px 0; }
  .feature:nth-child(2) { border-right: 0; }
  .property-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .properties-head { grid-template-columns: 1fr; align-items: start; }
  .contact-box { grid-template-columns: 1fr; }
  .contact-actions { justify-content: flex-start; }
}
@media (max-width: 560px) {
  .nav { padding: 10px 20px; }
  .brand-name { font-size: .86rem; }
  .brand-sub { font-size: .62rem; }
  .lang { gap: 7px; }
  .lang a { padding: 5px 8px; }
  .nav-cta { padding: 9px 14px; font-size: .86rem; }
  .hero-card img { height: clamp(180px, 52vw, 225px); }
  .hero-inner > div:first-child { padding: 36px 20px 56px; }
  h1 { font-size: 2.25rem; }
  .hero-lead { font-size: 1rem; }
  .hero-actions { flex-direction: column; }
  .button { width: 100%; }
  .features-inner, .property-grid, .meta { grid-template-columns: 1fr; }
  .features-inner { padding: 22px 20px; }
  .feature, .feature:first-child { padding: 0 0 16px; border-right: 0; border-bottom: 1px solid var(--warm3); }
  .feature:last-child { border-bottom: 0; padding-bottom: 0; }
  .section { padding: 56px 0; }
  .wrap { padding: 0 20px; }
  .product-note { grid-template-columns: 1fr; }
  .property { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
  .value { margin-top: 0; text-align: right; }
  .gallery-grid { grid-template-columns: 1fr; }
  .g-hero, .g-third { grid-column: auto; }
  .contact-box { padding: 24px 20px; }
  .whatsapp-qr-card { width: 100%; }
  .whatsapp-qr { width: 82px; height: 82px; }
  .whatsapp-float { right: 14px; bottom: 14px; padding: 10px 13px; }
  .whatsapp-float strong { display: none; }
  .footer-inner { padding: 0 20px; }
}

@media (max-width: 1040px) {
  .hero.landing-hero { background: linear-gradient(100deg, rgba(10,23,34,.94), rgba(15,31,46,.72) 52%, rgba(15,31,46,.28)), url("assets/product-hero.png") center center / cover no-repeat; }
}