#detail-body {
  background:
    radial-gradient(circle at 76% 8%, rgba(85, 215, 255, 0.09), transparent 28rem),
    radial-gradient(circle at 12% 55%, rgba(157, 123, 255, 0.06), transparent 30rem),
    var(--bg);
}

#detail-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(8, 11, 18, 0.88);
  backdrop-filter: blur(18px);
}

#detail-nav {
  width: min(calc(100% - 48px), var(--max));
  min-height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

#detail-brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
}

#detail-brand-mark {
  width: 40px;
  height: 40px;
  object-fit: contain;
  filter: drop-shadow(0 0 8px rgba(85, 215, 255, 0.28));
}

#detail-brand-name {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.19em;
}

#detail-nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  color: #a8b1bf;
  font-size: 13px;
}

#detail-nav-links a:hover { color: #fff; }

#detail-main,
#detail-footer {
  width: min(calc(100% - 48px), var(--max));
  margin: 0 auto;
}

#detail-hero {
  min-height: 640px;
  padding: 74px 0 92px;
  display: grid;
  align-content: center;
}

#detail-breadcrumb {
  margin-bottom: 46px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: #748091;
  font-size: 12px;
}

#detail-breadcrumb-home:hover { color: var(--cyan); }
#detail-breadcrumb-separator { color: #44505f; }

#detail-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.65fr);
  align-items: end;
  gap: 72px;
}

#detail-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #a4afbd;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

#detail-kicker-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 14px var(--cyan);
}

#detail-title {
  max-width: 850px;
  margin: 22px 0 0;
  font-size: clamp(52px, 7vw, 92px);
  line-height: 1.04;
  letter-spacing: -0.06em;
}

#detail-lead {
  max-width: 760px;
  margin: 30px 0 0;
  color: #9aa5b4;
  font-size: 18px;
  line-height: 1.85;
}

#detail-cta-group {
  margin-top: 36px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

#detail-summary {
  padding: 26px;
  border: 1px solid rgba(85, 215, 255, 0.2);
  border-radius: 18px;
  background: linear-gradient(145deg, rgba(85, 215, 255, 0.08), rgba(255, 255, 255, 0.02));
}

#detail-summary-label {
  color: var(--cyan);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.15em;
}

#detail-summary-list {
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 15px;
  list-style: none;
  color: #c4ced9;
  font-size: 13px;
  line-height: 1.6;
}

#detail-summary-list li {
  padding-bottom: 15px;
  border-bottom: 1px solid var(--line);
}

#detail-summary-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.detail-section {
  padding: 108px 0;
  border-top: 1px solid var(--line);
}

.detail-section-heading {
  display: grid;
  grid-template-columns: 0.7fr 1.5fr;
  gap: 48px;
  margin-bottom: 48px;
}

.detail-section-index {
  padding-top: 8px;
  color: var(--cyan);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.detail-section-copy h2 {
  margin: 0;
  font-size: clamp(36px, 5vw, 58px);
  line-height: 1.16;
  letter-spacing: -0.045em;
}

.detail-section-copy p {
  max-width: 720px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
}

.detail-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.detail-card {
  min-height: 250px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: linear-gradient(150deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.015));
}

.detail-card-number {
  color: var(--cyan);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.15em;
}

.detail-card h3 {
  margin: 42px 0 14px;
  font-size: 21px;
  letter-spacing: -0.025em;
}

.detail-card p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.85;
}

#detail-deliverables-list {
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  list-style: none;
}

#detail-deliverables-list li {
  min-height: 86px;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: 13px;
  display: flex;
  align-items: center;
  gap: 13px;
  color: #c3cdd8;
  background: rgba(255, 255, 255, 0.025);
  font-size: 14px;
  line-height: 1.6;
}

.detail-check {
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #07130e;
  background: var(--green);
  font-size: 11px;
  font-weight: 800;
}

#detail-faq-list { display: grid; gap: 12px; }

.detail-faq {
  padding: 0 24px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.025);
}

.detail-faq summary {
  padding: 22px 0;
  color: #dce4ed;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
}

.detail-faq p {
  margin: 0;
  padding: 0 0 22px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.85;
}

#detail-related-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.detail-related-link {
  min-height: 145px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  color: #cbd5df;
  background: rgba(255, 255, 255, 0.025);
  font-size: 16px;
  font-weight: 700;
  transition: transform 180ms ease, border-color 180ms ease;
}

.detail-related-link span { color: var(--cyan); font-size: 12px; }
.detail-related-link:hover { transform: translateY(-3px); border-color: rgba(85, 215, 255, 0.3); }

#detail-contact {
  margin-bottom: 80px;
  padding: 58px;
  border: 1px solid rgba(85, 215, 255, 0.2);
  border-radius: 22px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 40px;
  background: linear-gradient(135deg, rgba(85, 215, 255, 0.08), rgba(157, 123, 255, 0.055));
}

#detail-contact-title {
  margin: 0;
  font-size: clamp(32px, 4vw, 52px);
  letter-spacing: -0.045em;
}

#detail-contact-description {
  max-width: 690px;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

#detail-contact-actions { display: flex; gap: 10px; }

#detail-footer {
  min-height: 132px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  color: #566171;
  font-size: 11px;
}

#detail-footer-brand { color: #9ca8b7; font-weight: 700; letter-spacing: 0.14em; }

@media (max-width: 900px) {
  #detail-hero-grid,
  #detail-contact { grid-template-columns: 1fr; }
  #detail-summary { max-width: 560px; }
  .detail-card-grid { grid-template-columns: 1fr; }
  .detail-card { min-height: 0; }
  .detail-card h3 { margin-top: 28px; }
}

@media (max-width: 620px) {
  #detail-nav,
  #detail-main,
  #detail-footer { width: min(calc(100% - 32px), var(--max)); }
  #detail-nav { min-height: 68px; }
  #detail-brand-name { font-size: 11px; }
  #detail-nav-links { gap: 14px; font-size: 11px; }
  #detail-nav-contact { display: none; }
  #detail-hero { min-height: 0; padding: 74px 0 80px; }
  #detail-breadcrumb { margin-bottom: 34px; }
  #detail-hero-grid { gap: 42px; }
  #detail-title { font-size: clamp(46px, 14vw, 66px); }
  #detail-lead { font-size: 15px; }
  .detail-section { padding: 82px 0; }
  .detail-section-heading { grid-template-columns: 1fr; gap: 16px; margin-bottom: 34px; }
  .detail-section-copy h2 { font-size: 38px; }
  #detail-deliverables-list,
  #detail-related-list { grid-template-columns: 1fr; }
  #detail-contact { margin-bottom: 50px; padding: 34px 24px; }
  #detail-contact-actions { flex-direction: column; align-items: stretch; }
  #detail-footer { min-height: 150px; align-items: flex-start; justify-content: center; flex-direction: column; }
}