:root { --ink: #0f172a; --muted: #475569; --line: #e2e8f0; --bg: #f8fafc; --pri: #0369a1; --pri-d: #0c4a6e; }
* { box-sizing: border-box; }
body { margin: 0; font-family: "Sarabun", "Segoe UI", system-ui, sans-serif; color: var(--ink); line-height: 1.6; background: var(--bg); }
a { color: var(--pri); }
.wrap { max-width: 960px; margin: 0 auto; padding: 0 1.25rem; }
header[role="banner"] { background: #fff; border-bottom: 1px solid var(--line); }
.topbar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; padding: 0.9rem 0; }
.mark { font-weight: 700; color: var(--pri-d); font-size: 1.1rem; }
.mark { text-decoration: none; }
.mark:hover, .mark:focus { text-decoration: underline; }
.nav-main { display: flex; flex-wrap: wrap; gap: 0.4rem 0.9rem; align-items: center; }
.nav-main a { text-decoration: none; color: var(--ink); }
.nav-main a:hover, .nav-main a:focus { color: var(--pri); text-decoration: underline; }
.nav-main a[aria-current="page"] { color: var(--pri-d); font-weight: 700; }
.inpage-nav { background: #f1f5f9; border-bottom: 1px solid var(--line); padding: 0.5rem 0; font-size: 0.9rem; }
.inpage-nav a { color: var(--pri-d); }
.sub-hero { background: #fff; border-bottom: 1px solid var(--line); padding: 1.5rem 0 1.75rem; }
.sub-hero h1 { margin: 0; font-size: clamp(1.25rem, 2.5vw, 1.6rem); line-height: 1.3; color: var(--pri-d); }
.sub-hero p { margin: 0.4rem 0 0; color: var(--muted); max-width: 40em; }
.hero { background: linear-gradient(135deg, #0a3d5c 0%, #0c4a6e 40%, #0e7490 100%); color: #fff; padding: 2.5rem 0 3rem; overflow: hidden; }
.hero-grid { display: grid; gap: 2rem; align-items: center; }
@media (min-width: 800px) { .hero-grid { grid-template-columns: 1fr minmax(280px, 1fr); gap: 2.5rem; } }
.hero-fig { margin: 0; position: relative; }
.hero-fig::after { content: ""; position: absolute; inset: 0; border-radius: 14px; box-shadow: inset 0 0 0 1px rgba(255,255,255,0.12); pointer-events: none; }
.hero-fig img { width: 100%; height: auto; max-height: min(400px, 50vh); object-fit: cover; border-radius: 14px; display: block; box-shadow: 0 25px 50px -12px rgba(0,0,0,0.45); }
.hero h1 { margin: 0 0 0.75rem; font-size: clamp(1.5rem, 3vw, 2rem); line-height: 1.3; }
.hero p.lead { margin: 0; opacity: 0.95; max-width: 38em; }
.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.25rem; }
.btn { display: inline-block; padding: 0.65rem 1.1rem; border-radius: 6px; text-decoration: none; font-weight: 600; }
.btn-primary { background: #fff; color: var(--pri-d); }
.btn-ghost { border: 1px solid rgba(255,255,255,0.5); color: #fff; }
.btn--dark { background: var(--pri-d); color: #fff; }
.btn--dark:hover { background: #075985; }
main[role="main"] { padding: 2rem 0 3rem; }
section { margin-bottom: 2.5rem; scroll-margin-top: 1rem; }
section h2 { font-size: 1.25rem; margin: 0 0 0.75rem; color: var(--pri-d); }
.card { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 1.25rem 1.5rem; margin-bottom: 1rem; }
.list-check { margin: 0; padding-left: 1.25rem; }
.list-check li { margin-bottom: 0.35rem; }
.grid-2 { display: grid; gap: 1rem; }
@media (min-width: 640px) { .grid-2 { grid-template-columns: 1fr 1fr; } }
.card--media { padding: 0; overflow: hidden; display: flex; flex-direction: column; }
.card--media img { width: 100%; height: 200px; object-fit: cover; display: block; }
.card--media .card-body { padding: 1.1rem 1.35rem 1.35rem; }
.img-rounded { width: 100%; height: auto; border-radius: 10px; display: block; }
.intro-split { display: grid; gap: 1.25rem; align-items: start; }
@media (min-width: 720px) { .intro-split { grid-template-columns: 1fr minmax(200px, 34%); } }
.intro-fig { margin: 0; }
.intro-fig figcaption { font-size: 0.8rem; color: var(--muted); margin-top: 0.4rem; }
.section-banner { margin: 0 0 1.25rem; border-radius: 10px; overflow: hidden; border: 1px solid var(--line); }
.section-banner img { width: 100%; height: 220px; object-fit: cover; display: block; }
@media (min-width: 640px) { .section-banner img { height: 280px; } }
.split-img { display: grid; gap: 1rem; }
@media (min-width: 700px) { .split-img { grid-template-columns: 1fr 1.8fr; align-items: start; } }
.split-img-fig { margin: 0; }
.split-img-fig img { width: 100%; border-radius: 10px; object-fit: cover; aspect-ratio: 4/3; max-height: 280px; }
.split-img-fig figcaption { font-size: 0.8rem; color: var(--muted); margin-top: 0.35rem; }
.contact-row { display: grid; gap: 1.25rem; align-items: center; }
@media (min-width: 640px) { .contact-row { grid-template-columns: 1.15fr 1fr; } }
.contact-fig { margin: 0; }
.contact-fig img { width: 100%; border-radius: 10px; object-fit: cover; aspect-ratio: 16/11; max-height: 220px; }
details { border: 1px solid var(--line); border-radius: 8px; padding: 0.75rem 1rem; margin-bottom: 0.5rem; background: #fff; }
details summary { cursor: pointer; font-weight: 600; }
.prose p { margin: 0 0 0.85rem; }
.prose h3 { font-size: 1.05rem; margin: 1.5rem 0 0.5rem; color: var(--ink); }
.prose h3:first-child { margin-top: 0; }
.prose h2 { margin: 0 0 0.5rem; font-size: 1.2rem; color: var(--pri-d); }
.promo-box { border-left: 4px solid var(--pri); padding: 0.5rem 0 0.5rem 1rem; margin: 1rem 0; background: #f0f9ff; border-radius: 0 8px 8px 0; }
.foot-nav { margin: 0.5rem 0 0; font-size: 0.9rem; }
.foot-nav a { color: var(--muted); }
.foot-nav a:hover { color: var(--pri); }
footer[role="contentinfo"] { border-top: 1px solid var(--line); background: #fff; padding: 1.5rem 0; font-size: 0.9rem; color: var(--muted); }
address { font-style: normal; }