.detail-page {
  min-height: 100vh;
  background:
    radial-gradient(circle at 85% 8%, rgba(34, 224, 255, .12), transparent 24rem),
    linear-gradient(180deg, var(--paper) 0, var(--bg) 28rem);
}

.detail-nav {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-5);
  min-height: 74px;
  padding: 10px clamp(20px, 5vw, 72px);
  border-bottom: 1px solid var(--line);
  background: rgba(250, 249, 247, .92);
  backdrop-filter: blur(16px);
}

.detail-nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
}

.detail-nav__links,
.detail-footer nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 28px);
}

.detail-nav__links > a:not(.btn),
.detail-footer a {
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
}

.service-hero {
  max-width: 1180px;
  margin: 0 auto;
  padding: clamp(64px, 9vw, 120px) clamp(20px, 5vw, 72px) clamp(54px, 7vw, 88px);
}

.service-hero h1 {
  max-width: 14ch;
  margin: 14px 0 18px;
  font-family: var(--font-display);
  font-size: clamp(48px, 8vw, 92px);
  line-height: .96;
  letter-spacing: -.055em;
}

.service-hero > p {
  max-width: 700px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(18px, 2.1vw, 23px);
  line-height: 1.55;
}

.breadcrumbs {
  display: flex;
  gap: 8px;
  margin-bottom: var(--s-5);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 12px;
}

.breadcrumbs a { color: var(--ink); }

.service-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 340px);
  gap: clamp(40px, 7vw, 96px);
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 72px) clamp(72px, 9vw, 120px);
}

.service-copy { min-width: 0; }

.service-copy section + section,
.service-copy figure + section,
.service-copy section + figure {
  margin-top: clamp(42px, 6vw, 72px);
}

.service-copy h2,
.service-aside h2,
.detail-cta h2 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.08;
  letter-spacing: -.03em;
}

.service-copy p,
.service-copy li,
.service-aside p,
.service-aside li {
  font-size: 17px;
  line-height: 1.72;
}

.service-copy a { color: var(--cyan-deep); font-weight: 700; }

.check-list,
.service-aside ul {
  display: grid;
  gap: 12px;
}

.check-list li,
.service-aside li {
  position: relative;
  padding-left: 28px;
}

.check-list li::before,
.service-aside li::before {
  position: absolute;
  left: 0;
  color: var(--cyan-deep);
  content: "✓";
  font-weight: 800;
}

.steps-list {
  display: grid;
  gap: 18px;
  counter-reset: service-step;
}

.steps-list li {
  display: grid;
  grid-template-columns: 44px 1fr;
  column-gap: 14px;
  counter-increment: service-step;
}

.steps-list li::before {
  grid-row: 1 / 3;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--pink);
  color: var(--ink);
  content: counter(service-step);
  font-family: var(--font-mono);
  font-weight: 800;
}

.steps-list strong { line-height: 1.35; }
.steps-list span { color: var(--muted); }

.service-aside {
  align-self: start;
  position: sticky;
  top: 104px;
  padding: 28px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: var(--paper);
  box-shadow: var(--shadow-sm);
}

.service-aside h2 { font-size: 26px; }
.service-aside p:last-child { margin-bottom: 0; }

.service-aside dl { margin: 0; }
.service-aside dl div { padding: 12px 0; border-bottom: 1px solid var(--line); }
.service-aside dt { color: var(--muted); font-family: var(--font-mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; }
.service-aside dd { margin: 4px 0 0; font-weight: 800; }

.detail-photo { margin-left: 0; margin-right: 0; }
.detail-photo img { width: 100%; max-height: 560px; border-radius: var(--radius-lg); object-fit: cover; }
.detail-photo figcaption { margin-top: 8px; color: var(--muted); font-family: var(--font-mono); font-size: 12px; }

.service-link-grid { display: grid; gap: 14px; }
.service-link-grid a { display: grid; gap: 4px; padding: 18px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper); color: var(--ink); text-decoration: none; }
.service-link-grid a:hover { border-color: var(--cyan-deep); transform: translateY(-2px); }
.service-link-grid span { color: var(--muted); font-weight: 400; }

.detail-cta {
  margin: 0 clamp(20px, 5vw, 72px) clamp(72px, 9vw, 120px);
  padding: clamp(34px, 6vw, 64px);
  border-radius: var(--radius-lg);
  background: var(--ink);
  color: var(--white);
  text-align: center;
}

.detail-cta p { max-width: 620px; margin: 0 auto 24px; color: rgba(255,255,255,.76); font-size: 18px; line-height: 1.65; }

.detail-footer {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  padding: 32px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
}

.detail-footer > div { display: grid; gap: 4px; }
.detail-footer span { color: var(--muted); }

@media (max-width: 800px) {
  .detail-nav { align-items: flex-start; }
  .detail-nav__links > a:not(.btn) { display: none; }
  .detail-nav__links .btn { padding: 10px 14px; font-size: 12px; }
  .service-layout { grid-template-columns: 1fr; }
  .service-aside { position: static; }
  .detail-footer { flex-direction: column; }
  .detail-footer nav { flex-wrap: wrap; }
}

@media (max-width: 520px) {
  .detail-nav { padding-inline: 16px; }
  .detail-nav__brand .nav__wordmark { font-size: 16px; }
  .service-hero { padding-top: 48px; }
  .service-hero h1 { font-size: clamp(42px, 14vw, 64px); }
}