:root {
  --ink: #20272b;
  --muted: #657177;
  --line: #dce5e3;
  --paper: #fbfcfb;
  --mist: #eef5f2;
  --teal: #1f6f67;
  --teal-dark: #124a46;
  --gold: #c7a35a;
  --white: #ffffff;
  --shadow: 0 18px 46px rgba(19, 44, 42, 0.16);
  --radius: 8px;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.7;
}

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

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 12px clamp(18px, 4vw, 56px);
  border-bottom: 1px solid rgba(220, 229, 227, 0.88);
  background: rgba(251, 252, 251, 0.92);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 190px;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 50%;
  background: var(--teal);
  color: var(--white);
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  line-height: 1.2;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

.nav-links a {
  padding: 8px 10px;
  border-radius: 999px;
  color: #334246;
  font-size: 14px;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  background: var(--mist);
  color: var(--teal-dark);
  outline: none;
}

.hero {
  position: relative;
  min-height: min(760px, calc(100vh - 72px));
  display: grid;
  align-items: end;
  overflow: hidden;
  background: var(--teal-dark);
}

.hero-image,
.hero-shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-image {
  object-fit: cover;
  object-position: 56% 48%;
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(8, 31, 30, 0.86) 0%, rgba(8, 31, 30, 0.58) 42%, rgba(8, 31, 30, 0.18) 100%),
    linear-gradient(0deg, rgba(8, 31, 30, 0.54) 0%, rgba(8, 31, 30, 0.04) 60%);
}

.hero-content {
  position: relative;
  width: min(760px, calc(100% - 36px));
  margin: 0 clamp(18px, 6vw, 88px) clamp(42px, 9vw, 92px);
  color: var(--white);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--gold);
  font-size: 14px;
  font-weight: 700;
}

.hero h1 {
  margin: 0;
  max-width: 720px;
  font-size: 64px;
  line-height: 1.1;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 690px;
  margin: 22px 0 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 10px 18px;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 999px;
  font-weight: 700;
}

.button.primary {
  border-color: var(--white);
  background: var(--white);
  color: var(--teal-dark);
}

.button.secondary {
  color: var(--white);
}

.section {
  padding: clamp(56px, 8vw, 96px) clamp(18px, 5vw, 72px);
}

.section-muted {
  background: var(--mist);
}

.section-heading {
  width: min(820px, 100%);
  margin: 0 auto 30px;
  text-align: center;
}

.section-heading h2,
.feature-copy h2,
.split h2,
.contact-copy h2 {
  margin: 0;
  color: var(--ink);
  font-size: 40px;
  line-height: 1.18;
  letter-spacing: 0;
}

.intro-grid,
.split,
.contact {
  width: min(1120px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(24px, 5vw, 56px);
  align-items: start;
}

.intro-grid p,
.feature-copy p,
.split p,
.contact-copy p {
  margin: 0;
  color: #465459;
}

.check-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 24px;
  color: #3c4d51;
}

.check-list li::before {
  content: "";
  position: absolute;
  top: 0.75em;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--teal);
}

.service-grid {
  width: min(1180px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.service-card {
  min-height: 260px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 8px 26px rgba(24, 56, 52, 0.06);
}

.service-index {
  color: var(--gold);
  font-weight: 800;
}

.service-card h3,
.standard-list h3 {
  margin: 12px 0 10px;
  font-size: 21px;
  line-height: 1.25;
}

.service-card p,
.standard-list p {
  margin: 0;
  color: var(--muted);
}

.service-card a {
  display: inline-block;
  margin-top: 20px;
  color: var(--teal);
  font-weight: 800;
}

.feature {
  width: min(1180px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(24px, 5vw, 56px);
  align-items: center;
}

.feature-media {
  margin: 0;
}

.feature-media img,
.gallery figure img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.process-list {
  width: min(1120px, 100%);
  margin: 0 auto;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  counter-reset: step;
}

.process-list li {
  position: relative;
  min-height: 168px;
  padding: 22px;
  border-left: 4px solid var(--teal);
  border-radius: var(--radius);
  background: var(--white);
  counter-increment: step;
}

.process-list li::before {
  content: counter(step, decimal-leading-zero);
  display: block;
  margin-bottom: 18px;
  color: var(--gold);
  font-weight: 900;
}

.process-list strong,
.process-list span {
  display: block;
}

.process-list strong {
  font-size: 20px;
}

.process-list span {
  margin-top: 8px;
  color: var(--muted);
}

.standard-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.standard-list article {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.gallery-grid {
  width: min(1180px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 0.85fr 0.85fr;
  gap: 16px;
  align-items: stretch;
}

.gallery figure {
  margin: 0;
}

.gallery figure img {
  height: 100%;
  min-height: 320px;
  object-fit: cover;
}

.gallery figcaption {
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
}

.faq-list {
  width: min(920px, 100%);
  margin: 0 auto;
  display: grid;
  gap: 12px;
}

details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

summary {
  cursor: pointer;
  padding: 18px 20px;
  color: var(--ink);
  font-weight: 800;
}

details p {
  margin: 0;
  padding: 0 20px 20px;
  color: var(--muted);
}

.contact {
  align-items: center;
  border-top: 1px solid var(--line);
}

.contact-panel {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 24px;
  border-radius: var(--radius);
  background: var(--teal-dark);
  color: var(--white);
  font-style: normal;
  box-shadow: var(--shadow);
}

.contact-panel strong {
  color: var(--gold);
  font-size: 22px;
}

.contact-panel span {
  color: rgba(255, 255, 255, 0.86);
}

.contact-panel a {
  color: var(--white);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.site-footer {
  display: grid;
  gap: 4px;
  padding: 28px clamp(18px, 5vw, 72px);
  background: #162321;
  color: rgba(255, 255, 255, 0.78);
  text-align: center;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 900px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .nav-links {
    justify-content: flex-start;
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .hero {
    min-height: 720px;
  }

  .hero-image {
    object-position: 62% 50%;
  }

  .hero-shade {
    background:
      linear-gradient(0deg, rgba(8, 31, 30, 0.9) 0%, rgba(8, 31, 30, 0.66) 54%, rgba(8, 31, 30, 0.12) 100%),
      linear-gradient(90deg, rgba(8, 31, 30, 0.62) 0%, rgba(8, 31, 30, 0.08) 100%);
  }

  .hero-content {
    width: calc(100% - 36px);
    margin: 0 18px 42px;
  }

  .hero-copy {
    font-size: 16px;
  }

  .hero h1 {
    font-size: 44px;
  }

  .section-heading h2,
  .feature-copy h2,
  .split h2,
  .contact-copy h2 {
    font-size: 34px;
  }

  .intro-grid,
  .split,
  .contact,
  .feature,
  .service-grid,
  .process-list,
  .standard-list,
  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .service-card,
  .process-list li {
    min-height: auto;
  }

  .gallery figure img {
    min-height: 260px;
  }
}

@media (max-width: 560px) {
  body {
    font-size: 15px;
  }

  .site-header {
    min-height: 0;
  }

  .hero {
    min-height: 650px;
  }

  .hero h1 {
    font-size: 34px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .section {
    padding: 48px 18px;
  }

  .section-heading {
    text-align: left;
  }

  .section-heading h2,
  .feature-copy h2,
  .split h2,
  .contact-copy h2 {
    font-size: 28px;
  }

  .service-card,
  .standard-list article,
  .contact-panel {
    padding: 20px;
  }

  summary {
    padding: 16px;
  }

  details p {
    padding: 0 16px 16px;
  }
}