:root {
  --ink: #17242b;
  --muted: #64737c;
  --line: #d9e7e3;
  --paper: #ffffff;
  --wash: #f5f8f6;
  --teal: #007f7a;
  --teal-dark: #075861;
  --amber: #d69a24;
  --steel: #34424a;
  --sky: #e7f6f3;
  --media-gradient: linear-gradient(135deg, #eef8f5 0%, #ffffff 46%, #f7ead1 100%);
  --media-shadow: 0 18px 46px rgba(7, 88, 97, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: Arial, "Noto Sans Thai", "Tahoma", sans-serif;
  line-height: 1.65;
  background: var(--paper);
}

a {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.nav {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  flex-direction: column;
  text-decoration: none;
  line-height: 1.15;
  min-width: 168px;
}

.brand strong {
  font-size: 18px;
  letter-spacing: 0;
}

.brand span {
  color: var(--muted);
  font-size: 12px;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 10px 18px;
  font-size: 14px;
}

.nav-links a {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  padding: 0 4px;
  text-decoration: none;
  color: var(--steel);
  white-space: nowrap;
}

.nav-links a:hover {
  color: var(--teal);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid var(--teal);
  border-radius: 6px;
  background: var(--teal);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  white-space: normal;
  text-align: center;
}

.button.secondary {
  background: transparent;
  color: var(--teal);
}

.hero .button.secondary {
  border-color: var(--teal);
  color: var(--teal);
}

.hero {
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(231, 246, 243, 0.9), rgba(255, 255, 255, 0.96)),
    radial-gradient(circle at 85% 18%, rgba(214, 154, 36, 0.16), transparent 34%);
}

.hero-inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: clamp(44px, 7vw, 82px) 0 42px;
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.98fr) minmax(300px, 0.82fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: start;
}

.hero-copy,
.section-head,
.card-body,
.split > div,
.service-hero .wrap > div {
  min-width: 0;
}

.hero-media {
  margin: 0;
  min-width: 0;
}

.hero-media img {
  width: 100%;
  max-height: 560px;
  aspect-ratio: 4 / 5;
  object-fit: contain;
  padding: 12px;
  border: 1px solid rgba(0, 127, 122, 0.18);
  border-radius: 8px;
  background: var(--media-gradient);
  box-shadow: 0 24px 68px rgba(7, 88, 97, 0.18);
  filter: saturate(1.04) contrast(1.03);
}

.market-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.market-links a {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 6px 12px;
  border: 1px solid rgba(0, 127, 122, 0.22);
  border-radius: 999px;
  color: var(--teal-dark);
  background: rgba(255, 255, 255, 0.74);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--teal-dark);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.22;
  letter-spacing: 0;
}

h1,
h2,
h3,
.card p {
  overflow-wrap: anywhere;
}

h1 {
  max-width: 860px;
  margin: 0;
  font-size: clamp(36px, 6vw, 68px);
}

.hero p {
  max-width: 760px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: clamp(17px, 2vw, 22px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(120px, 1fr));
  grid-column: 1 / -1;
  gap: 1px;
  width: 100%;
  margin-top: 44px;
  background: var(--line);
  border: 1px solid var(--line);
}

.hero-stat {
  padding: 18px;
  background: rgba(255, 255, 255, 0.86);
}

.hero-stat strong {
  display: block;
  font-size: 26px;
}

.hero-stat span {
  color: var(--muted);
  font-size: 13px;
}

.section {
  padding: 76px 0;
}

.section.alt {
  background: var(--wash);
}

.wrap {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.section-head {
  max-width: 780px;
  margin-bottom: 34px;
}

.section-head h2 {
  margin: 0 0 12px;
  font-size: clamp(28px, 4vw, 42px);
}

.section-head p {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  align-items: stretch;
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.card-body {
  padding: 22px;
  display: flex;
  flex: 1;
  flex-direction: column;
}

.card h3 {
  margin: 0 0 10px;
  font-size: 22px;
}

.card p {
  margin: 0 0 16px;
  color: var(--muted);
}

.card a {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  color: var(--teal);
  font-weight: 700;
  text-decoration: none;
  margin-top: auto;
}

.media-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  height: auto;
  object-fit: contain;
  background: var(--media-gradient);
  padding: 12px;
  filter: saturate(1.04) contrast(1.03);
}

.service-grid .media-card {
  min-height: 516px;
}

.product-grid .media-card {
  min-height: 410px;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  align-items: stretch;
}

.gallery-stack {
  display: contents;
}

.gallery figure,
.video-card figure {
  margin: 0;
  display: flex;
  min-width: 0;
  flex-direction: column;
}

.gallery img,
.video-card video {
  width: 100%;
  border-radius: 8px;
  border: 1px solid rgba(0, 127, 122, 0.18);
  background: var(--media-gradient);
  object-fit: contain;
  padding: 12px;
  box-shadow: var(--media-shadow);
}

.gallery img {
  aspect-ratio: 4 / 3;
  height: auto;
}

.gallery figcaption,
.video-card figcaption {
  margin-top: 8px;
  color: var(--muted);
  font-size: 14px;
}

.gallery figcaption {
  min-height: 46px;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.video-card video {
  aspect-ratio: 16 / 9;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 36px;
  align-items: start;
}

.split img {
  width: 100%;
  border-radius: 8px;
  max-height: 420px;
  aspect-ratio: 16 / 10;
  height: auto;
  border: 1px solid rgba(0, 127, 122, 0.18);
  background: var(--media-gradient);
  object-fit: contain;
  padding: 12px;
  box-shadow: var(--media-shadow);
  filter: saturate(1.04) contrast(1.03);
}

.list {
  display: grid;
  gap: 12px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.list li {
  padding-left: 22px;
  position: relative;
}

.list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--amber);
}

.topic-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.topic-strip span {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 12px;
  color: var(--steel);
  background: #fff;
  font-size: 14px;
}

.process {
  counter-reset: step;
}

.process .card {
  padding: 22px;
}

.process .card::before {
  counter-increment: step;
  content: "0" counter(step);
  display: inline-flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  border-radius: 50%;
  background: var(--teal);
  color: #fff;
  font-weight: 700;
}

.faq {
  display: grid;
  gap: 12px;
}

.faq details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 18px 20px;
}

.faq summary {
  cursor: pointer;
  font-weight: 700;
}

.faq p {
  margin: 12px 0 0;
  color: var(--muted);
}

.service-hero {
  background: var(--wash);
  border-bottom: 1px solid var(--line);
}

.service-hero .wrap {
  padding: 64px 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.72fr);
  gap: 36px;
  align-items: center;
}

.service-hero h1 {
  color: var(--ink);
  font-size: clamp(34px, 5vw, 56px);
}

.service-hero p {
  color: var(--muted);
  font-size: 18px;
}

.service-hero img {
  width: 100%;
  border-radius: 8px;
  max-height: 420px;
  aspect-ratio: 4 / 3;
  height: auto;
  border: 1px solid rgba(0, 127, 122, 0.18);
  background: var(--media-gradient);
  object-fit: contain;
  padding: 12px;
  box-shadow: var(--media-shadow);
  filter: saturate(1.04) contrast(1.03);
}

.breadcrumbs {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 13px;
}

.breadcrumbs a {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  color: var(--teal);
  text-decoration: none;
}

.contact-box a {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
}

.note {
  border-left: 4px solid var(--amber);
  padding: 16px 18px;
  background: #fff8ed;
  color: #49351a;
}

.contact-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.contact-box {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
  background: #fff;
}

.contact-box strong {
  display: block;
  margin-bottom: 6px;
}

.site-footer {
  background: #111a1f;
  color: #d7e2df;
  padding: 40px 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr 0.9fr 0.9fr;
  gap: 28px;
}

.site-footer a {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  color: #fff;
  text-decoration: none;
}

.site-footer p {
  margin: 6px 0;
}

@media (max-width: 900px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 0;
    gap: 12px;
  }

  .nav-links {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    width: 100%;
    gap: 8px;
    overflow-x: visible;
    padding-bottom: 0;
  }

  .nav-links a {
    justify-content: center;
    min-width: 0;
    min-height: 42px;
    padding: 8px 10px;
    border: 1px solid rgba(0, 127, 122, 0.16);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.76);
    text-align: center;
    white-space: normal;
    line-height: 1.25;
  }

  .hero-stats,
  .grid,
  .grid.two,
  .split,
  .gallery,
  .video-grid,
  .service-hero .wrap,
  .contact-panel,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 56px 0;
  }

  .hero-layout { grid-template-columns: 1fr; }
  .hero-media img { max-height: none; aspect-ratio: 16 / 10; }
}

@media (max-width: 520px) {
  .nav {
    width: min(100% - 24px, 1180px);
  }

  .brand {
    min-width: 0;
    width: 100%;
  }

  .brand strong {
    font-size: 17px;
  }

  .nav-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    font-size: 13px;
  }

  .nav-links a {
    min-height: 44px;
    padding: 8px 6px;
  }

  .card a,
  .breadcrumbs a,
  .contact-box a,
  .site-footer a {
    min-height: 40px;
  }

  h1 { font-size: clamp(31px, 10vw, 42px); }
  .hero-inner { padding-top: 34px; }

  .hero-stat {
    padding: 14px;
  }

  .hero-stat strong {
    font-size: 22px;
  }

  .button {
    width: 100%;
  }
}