:root {
  --ink: #15202b;
  --muted: #5d6b79;
  --line: #d8e0e7;
  --paper: #f6f8fa;
  --white: #ffffff;
  --navy: #12395f;
  --teal: #007f83;
  --gold: #d99a2b;
  --red: #bb3a2d;
  --shadow: 0 18px 48px rgba(13, 34, 54, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family:
    Inter, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  background: var(--paper);
  line-height: 1.6;
}

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

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

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
  padding: 14px clamp(18px, 4vw, 56px);
  color: var(--white);
  transition:
    background 180ms ease,
    box-shadow 180ms ease,
    color 180ms ease;
}

.site-header.is-scrolled {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 10px 28px rgba(12, 31, 48, 0.12);
  backdrop-filter: blur(12px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 236px;
}

.brand-mark {
  display: grid;
  width: 52px;
  height: 44px;
  place-items: center;
  border: 2px solid currentColor;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0;
}

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

.brand small {
  color: currentColor;
  font-size: 12px;
  opacity: 0.76;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 3vw, 34px);
  font-size: 15px;
  font-weight: 650;
}

.nav a {
  padding: 8px 0;
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid currentColor;
  border-radius: 6px;
  font-weight: 750;
  white-space: nowrap;
}

.header-cta {
  color: inherit;
}

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

.button.secondary {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.72);
  background: rgba(255, 255, 255, 0.12);
}

.hero {
  position: relative;
  display: grid;
  min-height: 92vh;
  overflow: hidden;
  color: var(--white);
}

.hero picture,
.hero-bg,
.hero-overlay,
.hero-content {
  grid-area: 1 / 1;
}

.hero-bg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(5, 20, 34, 0.82), rgba(5, 20, 34, 0.48) 48%, rgba(5, 20, 34, 0.16)),
    linear-gradient(0deg, rgba(9, 30, 48, 0.28), rgba(9, 30, 48, 0.28));
}

.hero-content {
  z-index: 1;
  align-self: center;
  width: min(760px, calc(100% - 36px));
  margin-left: clamp(18px, 7vw, 96px);
  padding-top: 82px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 18px;
  font-size: clamp(48px, 8vw, 96px);
  line-height: 0.96;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(30px, 4.2vw, 54px);
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 21px;
  line-height: 1.22;
}

.hero-lede {
  max-width: 720px;
  margin-bottom: 30px;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(18px, 2vw, 23px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.trust-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  color: var(--white);
  background: var(--line);
}

.trust-bar div {
  padding: 26px clamp(18px, 4vw, 54px);
  background: var(--navy);
}

.trust-bar strong,
.trust-bar span {
  display: block;
}

.trust-bar strong {
  font-size: 20px;
}

.trust-bar span {
  color: rgba(255, 255, 255, 0.72);
}

.section {
  padding: clamp(72px, 9vw, 120px) clamp(18px, 5vw, 72px);
}

.split {
  display: grid;
  grid-template-columns: minmax(260px, 0.72fr) minmax(320px, 1fr);
  gap: clamp(34px, 6vw, 80px);
  align-items: start;
  background: var(--white);
}

.section-copy {
  position: sticky;
  top: 110px;
}

.section-copy p:not(.eyebrow),
.coverage-copy p,
.quote-copy p {
  color: var(--muted);
  font-size: 17px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.service-card,
.process-step,
.quote-form {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.service-card {
  min-height: 250px;
  padding: 26px;
}

.card-number {
  display: inline-block;
  margin-bottom: 36px;
  color: var(--red);
  font-size: 14px;
  font-weight: 850;
}

.service-card p,
.process-step p {
  color: var(--muted);
}

.media-band {
  display: grid;
  grid-template-columns: minmax(300px, 1fr) minmax(280px, 0.82fr);
  gap: clamp(28px, 5vw, 74px);
  align-items: center;
  background: #eef3f5;
}

.media-panel {
  overflow: hidden;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.media-panel img {
  width: 100%;
  aspect-ratio: 16 / 11;
  object-fit: cover;
}

.check-list {
  display: grid;
  gap: 14px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 28px;
  color: var(--ink);
  font-weight: 650;
}

.check-list li::before {
  position: absolute;
  left: 0;
  top: 0.25em;
  width: 14px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--teal);
  content: "";
}

.process-section {
  background: var(--white);
}

.process-section > h2 {
  max-width: 780px;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 34px;
}

.process-step {
  padding: 24px;
}

.process-step span {
  display: grid;
  width: 40px;
  aspect-ratio: 1;
  margin-bottom: 28px;
  place-items: center;
  border-radius: 50%;
  color: var(--white);
  background: var(--navy);
  font-weight: 850;
}

.quote-section {
  display: grid;
  grid-template-columns: minmax(280px, 0.82fr) minmax(320px, 1fr);
  gap: clamp(28px, 5vw, 78px);
  align-items: start;
  padding: clamp(72px, 9vw, 120px) clamp(18px, 5vw, 72px);
  color: var(--white);
  background:
    linear-gradient(120deg, rgba(18, 57, 95, 0.96), rgba(0, 127, 131, 0.9)),
    url("https://images.unsplash.com/photo-1586528116311-ad8dd3c8310d?auto=format&fit=crop&w=1800&q=80") center / cover;
}

.quote-copy p {
  color: rgba(255, 255, 255, 0.78);
}

.contact-lines {
  display: grid;
  gap: 8px;
  margin-top: 28px;
  font-weight: 750;
}

.quote-form {
  display: grid;
  gap: 16px;
  padding: clamp(20px, 4vw, 34px);
  color: var(--ink);
  box-shadow: var(--shadow);
}

.quote-form label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 750;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px 13px;
  color: var(--ink);
  font: inherit;
  background: var(--white);
}

textarea {
  resize: vertical;
}

.form-button {
  width: 100%;
  border: 0;
  cursor: pointer;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 26px clamp(18px, 5vw, 72px);
  color: rgba(255, 255, 255, 0.8);
  background: #0d1d2c;
}

.site-footer strong {
  color: var(--white);
}

@media (max-width: 920px) {
  .site-header {
    align-items: flex-start;
    min-height: 70px;
  }

  .brand {
    min-width: 0;
  }

  .nav,
  .header-cta {
    display: none;
  }

  .trust-bar,
  .split,
  .media-band,
  .quote-section {
    grid-template-columns: 1fr;
  }

  .section-copy {
    position: static;
  }

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

@media (max-width: 620px) {
  .hero {
    min-height: 88vh;
  }

  .hero-content {
    align-self: end;
    width: calc(100% - 36px);
    margin: 0 18px 44px;
  }

  h1 {
    font-size: 50px;
  }

  .trust-bar,
  .service-grid,
  .process-grid {
    grid-template-columns: 1fr;
  }

  .service-card {
    min-height: auto;
  }

  .site-footer {
    display: grid;
  }
}