.product-page {
  background: #081118;
}

.product-page .site-header {
  background: rgba(8, 17, 24, 0.78);
  border-color: rgba(205, 232, 240, 0.1);
  backdrop-filter: blur(16px);
}

.detail-hero {
  position: relative;
  min-height: 100dvh;
  display: grid;
  align-items: center;
  padding: calc(var(--nav-height) + 64px) 0 72px;
  overflow: hidden;
  background:
    radial-gradient(circle at 84% 16%, rgba(53, 199, 232, 0.14), transparent 31%),
    linear-gradient(145deg, #081118 0%, #0d1b25 58%, #0a141c 100%);
}

.detail-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, #000, transparent 86%);
}

.detail-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, .84fr) minmax(480px, 1.16fr);
  align-items: center;
  gap: clamp(52px, 7vw, 100px);
}

.detail-back {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 40px;
  margin: 0 0 20px;
  padding: 0 18px 0 15px;
  border: 1px solid rgba(53, 199, 232, .32);
  border-radius: 999px;
  background: rgba(53, 199, 232, .09);
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: -.01em;
  transition: background-color .2s ease, border-color .2s ease, color .2s ease;
}

.detail-back:hover {
  background: rgba(53, 199, 232, .17);
  border-color: rgba(53, 199, 232, .58);
  color: #eaf8fc;
}

.detail-back-arrow {
  font-size: 15px;
  line-height: 1;
  transition: transform .2s ease;
}

.detail-back:hover .detail-back-arrow { transform: translateX(-3px); }

.detail-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 24px;
  color: #8197a2;
  font-size: 13px;
}

.detail-breadcrumb a:hover { color: var(--text); }
.detail-breadcrumb span::before { content: "/"; margin-right: 8px; color: #4e626c; }

.detail-label {
  margin: 0 0 16px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .13em;
}

.detail-title {
  margin: 0;
  font-size: clamp(58px, 7vw, 106px);
  line-height: .92;
  letter-spacing: -.065em;
}

.detail-title span { color: var(--accent); }

.detail-summary {
  max-width: 590px;
  margin: 30px 0 0;
  color: #c7d5db;
  font-size: clamp(17px, 1.55vw, 20px);
  line-height: 1.72;
}

.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.detail-visual {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(205, 232, 240, .17);
  border-radius: var(--radius);
  background: rgba(17, 31, 41, .7);
  box-shadow: 0 32px 90px rgba(0, 0, 0, .3);
}

.detail-visual img {
  width: 100%;
  height: auto;
}

.detail-visual-caption {
  margin: 0;
  padding: 14px 18px;
  border-top: 1px solid var(--line);
  color: #91a7b1;
  font-size: 13px;
}

.detail-section {
  padding: 112px 0;
  background: #081118;
}

.detail-section.is-soft { background: #0b171f; }

.detail-heading {
  max-width: 760px;
  margin-bottom: 52px;
}

.detail-heading p:first-child {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .12em;
}

.detail-heading h2 {
  margin: 0;
  font-size: clamp(36px, 4.7vw, 62px);
  line-height: 1.08;
  letter-spacing: -.045em;
}

.detail-heading > p:last-child {
  max-width: 680px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.problem-split {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: clamp(48px, 8vw, 110px);
}

.problem-split h2 {
  margin: 0;
  font-size: clamp(38px, 4.6vw, 62px);
  line-height: 1.08;
  letter-spacing: -.045em;
}

.problem-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.problem-list li {
  display: grid;
  grid-template-columns: minmax(140px, .42fr) minmax(0, 1fr);
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.problem-list strong { font-size: 17px; }
.problem-list span { color: var(--muted); }

.lifecycle {
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  list-style: none;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.lifecycle.five { grid-template-columns: repeat(5, minmax(0, 1fr)); }

.lifecycle li {
  min-height: 190px;
  padding: 26px 20px;
  border-right: 1px solid var(--line);
}

.lifecycle li:last-child { border-right: 0; }
.lifecycle small { display: block; margin-bottom: 38px; color: var(--accent); font-weight: 800; }
.lifecycle strong { display: block; margin-bottom: 8px; font-size: 17px; }
.lifecycle span { color: var(--muted); font-size: 14px; line-height: 1.6; }

.capability-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.capability-list li {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 18px;
  padding: 28px 28px 28px 0;
  border-bottom: 1px solid var(--line);
}

.capability-list li:nth-child(odd) { border-right: 1px solid var(--line); }
.capability-list li:nth-child(even) { padding-left: 28px; }

.capability-number {
  color: #52707d;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .08em;
}

.capability-list strong { display: block; margin-bottom: 7px; font-size: 19px; }
.capability-list p { margin: 0; color: var(--muted); }

.screen-gallery {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  max-width: 1040px;
  margin-inline: auto;
}

.screen-gallery figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f6f8f9;
}

.screen-gallery img { display: block; width: 100%; height: auto; }
.screen-gallery figcaption { padding: 14px 18px; color: #78909a; background: #101d26; font-size: 13px; }

.scope-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.scope-grid article {
  min-height: 210px;
  padding: 28px;
  background: #0d1922;
}

.scope-grid strong { display: block; margin-bottom: 12px; font-size: 19px; }
.scope-grid p { margin: 0; color: var(--muted); }

.detail-hero-grid--stack { grid-template-columns: minmax(0, 1fr); gap: 52px; }
.detail-hero-grid--stack .detail-hero-copy { max-width: 780px; }

.arch-body { padding: 28px 30px 26px; }

.arch-title {
  margin: 0 0 22px;
  color: #8ba1ab;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .1em;
}

.arch-rail { grid-column: 1 / -1; }
.arch-rail-labels { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 8px; }

.arch-flow-dir {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .04em;
  white-space: nowrap;
}

.arch-rail-send .arch-flow-dir { color: #7fdcf2; border: 1px solid rgba(53,199,232,.4); background: rgba(53,199,232,.12); }
.arch-rail-recv .arch-flow-dir { color: #a5e7c4; border: 1px solid rgba(129,226,175,.35); background: rgba(129,226,175,.1); }

.arch-dir-ico { width: 11px; height: 9px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }

.arch-flow-chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 0; padding: 0; list-style: none; }
.arch-flow-chips li { padding: 4px 10px; border-radius: 999px; font-size: 12px; white-space: nowrap; }
.arch-rail-send .arch-flow-chips li { color: #bfe9f4; border: 1px solid rgba(53,199,232,.24); background: rgba(53,199,232,.06); }
.arch-rail-recv .arch-flow-chips li { color: #c4ecd7; border: 1px solid rgba(129,226,175,.22); background: rgba(129,226,175,.06); }

.arch-rail-track { position: relative; height: 30px; background-repeat: repeat-x; background-size: 13px 2px; }
.arch-rail-send .arch-rail-track {
  margin: 10px calc((100% - 40px) / 7) 0;
  background-image: linear-gradient(90deg, rgba(53,199,232,.5) 0, rgba(53,199,232,.5) 7px, transparent 7px, transparent 13px);
  background-position: 0 0;
  animation: arch-flow-right 1.5s linear infinite;
}
.arch-rail-recv .arch-rail-track {
  margin: 0 calc((100% - 40px) / 7) 10px;
  background-image: linear-gradient(90deg, rgba(129,226,175,.45) 0, rgba(129,226,175,.45) 7px, transparent 7px, transparent 13px);
  background-position: 0 100%;
  animation: arch-rail-left 1.5s linear infinite;
}
.arch-rail-track::before, .arch-rail-track::after { content: ""; position: absolute; top: 0; bottom: 0; width: 2px; }
.arch-rail-track::before { left: 0; }
.arch-rail-track::after { right: 0; }
.arch-rail-send .arch-rail-track::before, .arch-rail-send .arch-rail-track::after { background: rgba(53,199,232,.5); }
.arch-rail-recv .arch-rail-track::before, .arch-rail-recv .arch-rail-track::after { background: rgba(129,226,175,.45); }
.arch-rail-head { position: absolute; width: 0; height: 0; }
.arch-rail-send .arch-rail-head { right: -4px; bottom: -6px; border: 5px solid transparent; border-top: 8px solid rgba(53,199,232,.8); }
.arch-rail-recv .arch-rail-head { left: -4px; top: -6px; border: 5px solid transparent; border-bottom: 8px solid rgba(129,226,175,.75); }

.arch-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr) minmax(0, 1fr);
  column-gap: 20px;
  row-gap: 0;
  align-items: stretch;
  margin: 16px 0 4px;
}

.arch-node {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #0d1b24;
}

.arch-node small { color: #8fa6b1; font-size: 12px; }
.arch-node strong { font-size: 18px; letter-spacing: -.02em; }

.arch-icon {
  width: 22px;
  height: 22px;
  margin-bottom: 8px;
  color: var(--accent);
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.arch-chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 12px 0 0; padding: 0; list-style: none; }
.arch-chips li { padding: 4px 10px; border: 1px solid var(--line); border-radius: 999px; background: rgba(205,232,240,.05); color: #a9bcc5; font-size: 12px; }

.arch-node-core {
  justify-content: flex-start;
  border: 1px solid transparent;
  background:
    linear-gradient(#0a2330, #0a1e29) padding-box,
    linear-gradient(160deg, rgba(53,199,232,.6), rgba(53,199,232,.08) 55%, rgba(53,199,232,.34)) border-box;
  box-shadow: 0 0 44px rgba(53,199,232,.09);
}

.arch-pipeline { display: flex; gap: 22px; margin: 16px 0 0; padding: 0; list-style: none; }
.arch-pipeline li {
  position: relative;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 12px 8px;
  border: 1px solid rgba(53,199,232,.26);
  border-radius: 10px;
  background: rgba(53,199,232,.07);
  text-align: center;
}
.arch-pipeline li + li::before {
  content: "";
  position: absolute;
  left: -15px;
  top: 50%;
  width: 7px;
  height: 7px;
  margin-top: -4px;
  border-top: 2px solid rgba(53,199,232,.55);
  border-right: 2px solid rgba(53,199,232,.55);
  transform: rotate(45deg);
}
.arch-pipeline b { font-size: 13px; }
.arch-pipeline span { color: #8fb5c2; font-size: 11.5px; }

.arch-console { margin-top: 16px; padding-top: 15px; border-top: 1px dashed rgba(53,199,232,.24); }
.arch-console > b { display: block; margin-bottom: 9px; color: var(--accent); font-size: 11px; font-weight: 800; letter-spacing: .12em; }
.arch-console ul { display: flex; flex-wrap: wrap; gap: 6px; margin: 0; padding: 0; list-style: none; }
.arch-console li { padding: 4px 10px; border: 1px solid rgba(53,199,232,.28); border-radius: 999px; background: rgba(53,199,232,.08); color: #bfe9f4; font-size: 12px; }

.arch-link { display: none; }
.arch-arrow { display: block; width: 56px; height: 14px; }
.arch-arrow-line { fill: none; stroke: currentColor; stroke-width: 2; stroke-dasharray: 5 6; animation: arch-dash 1.4s linear infinite; }
.arch-arrow-head { fill: currentColor; }
.arch-arrow-send { color: rgba(53,199,232,.8); }
.arch-arrow-recv { color: rgba(129,226,175,.7); }

@keyframes arch-dash { to { stroke-dashoffset: -22; } }
@keyframes arch-flow-right { to { background-position: 26px 0; } }
@keyframes arch-rail-left { to { background-position: -26px 100%; } }

.operations-grid {
  display: grid;
  grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr);
  gap: clamp(48px, 7vw, 96px);
}

.operations-grid h2 {
  margin: 0;
  font-size: clamp(38px, 4.5vw, 60px);
  line-height: 1.08;
  letter-spacing: -.045em;
}

.operations-list { margin: 0; padding: 0; list-style: none; }
.operations-list li { padding: 20px 0; border-bottom: 1px solid var(--line); }
.operations-list li:first-child { border-top: 1px solid var(--line); }
.operations-list strong { display: block; margin-bottom: 6px; font-size: 18px; }
.operations-list span { color: var(--muted); }

.experience-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.experience-list li {
  display: grid;
  grid-template-columns: 110px 190px minmax(0, 1fr);
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.experience-list time { color: var(--accent); font-weight: 800; }
.experience-list strong { font-size: 17px; }
.experience-list span { color: var(--muted); }

.detail-visual.shot-frame {
  border-color: rgba(205, 232, 240, .16);
  background: #0d1b24;
  box-shadow: 0 26px 70px rgba(0, 0, 0, .36);
}

.dogfood-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 26px 0 0;
  padding: 8px 16px;
  border: 1px solid rgba(129, 226, 175, .28);
  border-radius: 999px;
  background: rgba(129, 226, 175, .07);
  color: #a5e7c4;
  font-size: 13px;
}

.dogfood-badge::before {
  content: "";
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #81e2af;
  box-shadow: 0 0 8px rgba(129, 226, 175, .8);
  animation: dogfood-pulse 2.6s ease-in-out infinite;
}

@keyframes dogfood-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .4; }
}

.feature-flow { display: grid; gap: clamp(64px, 8vw, 108px); }

.feature-block {
  display: grid;
  grid-template-columns: minmax(0, 1.22fr) minmax(0, .78fr);
  gap: clamp(36px, 5vw, 76px);
  align-items: center;
}

.feature-block:nth-child(even) { grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr); }
.feature-block:nth-child(even) .feature-media { order: 2; }

.feature-media { margin: 0; }

.feature-num {
  display: block;
  margin-bottom: 10px;
  color: #52707d;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .08em;
}

.feature-copy h3 {
  margin: 0 0 14px;
  font-size: clamp(24px, 2.5vw, 33px);
  line-height: 1.24;
  letter-spacing: -.03em;
}

.feature-copy > p { margin: 0; color: var(--muted); line-height: 1.72; }

.feature-points {
  display: grid;
  gap: 9px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.feature-points li {
  position: relative;
  padding-left: 18px;
  color: #a9bcc5;
  font-size: 14.5px;
}

.feature-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 8px;
  height: 2px;
  background: var(--accent);
}

.feature-extra {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(56px, 7vw, 92px);
  border: 1px solid var(--line);
  background: var(--line);
}

.feature-extra article { padding: 24px 26px; background: #0d1922; }
.feature-extra strong { display: block; margin-bottom: 8px; font-size: 16px; }
.feature-extra p { margin: 0; color: var(--muted); font-size: 14.5px; }

.detail-cta {
  padding: 94px 0;
  background: #0a2632;
}

.detail-cta-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 40px;
}

.detail-cta h2 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(36px, 4.8vw, 62px);
  line-height: 1.08;
  letter-spacing: -.045em;
}

.detail-cta p { max-width: 640px; margin: 18px 0 0; color: #9fb2bb; font-size: 17px; }

.detail-page-footer .footer-grid { align-items: start; }

.product-page .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .72s cubic-bezier(.16,1,.3,1), transform .72s cubic-bezier(.16,1,.3,1);
}

.product-page .reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 1040px) {
  .detail-hero { min-height: 0; }
  .detail-hero-grid { grid-template-columns: 1fr; }
  .detail-hero-copy { max-width: 720px; }
  .detail-visual { max-width: 820px; }
  .lifecycle, .lifecycle.five { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .lifecycle li:nth-child(3n) { border-right: 0; }
  .lifecycle li:nth-child(n+4) { border-top: 1px solid var(--line); }
  .scope-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .feature-block, .feature-block:nth-child(even) { grid-template-columns: 1fr; gap: 26px; }
  .feature-block:nth-child(even) .feature-media { order: 0; }
  .feature-media { max-width: 820px; }
}

@media (max-width: 760px) {
  .detail-hero { padding: calc(var(--nav-height) + 46px) 0 58px; }
  .detail-hero .detail-visual { display: none; }
  .detail-title { font-size: clamp(52px, 17vw, 76px); }
  .detail-summary { font-size: 17px; }
  .detail-actions { flex-direction: column; align-items: stretch; }
  .detail-section { padding: 82px 0; }
  .problem-split, .operations-grid { grid-template-columns: 1fr; gap: 36px; }
  .problem-list li { grid-template-columns: 1fr; gap: 8px; }
  .lifecycle, .lifecycle.five { grid-template-columns: 1fr; }
  .lifecycle li, .lifecycle li:nth-child(3n) { min-height: 0; border-right: 0; border-top: 1px solid var(--line); }
  .lifecycle li:first-child { border-top: 0; }
  .lifecycle small { margin-bottom: 18px; }
  .capability-list { grid-template-columns: 1fr; }
  .capability-list li, .capability-list li:nth-child(even), .capability-list li:nth-child(odd) { padding: 24px 0; border-right: 0; }
  .screen-gallery { gap: 18px; }
  .scope-grid { grid-template-columns: 1fr; }
  .detail-hero .gosims-arch { display: block; }
  .arch-body { padding: 22px 18px 20px; }
  .arch-grid { grid-template-columns: 1fr; margin: 14px 0 0; }
  .arch-rail-track { display: none; }
  .arch-rail-send .arch-rail-labels { margin-bottom: 14px; }
  .arch-rail-recv .arch-rail-labels { margin-top: 14px; }
  .arch-link { display: flex; flex-direction: row; justify-content: center; align-items: center; gap: 12px; height: 58px; }
  .arch-arrow-send { transform: rotate(90deg); }
  .arch-arrow-recv { transform: rotate(90deg); }
  .arch-pipeline { flex-direction: column; gap: 18px; }
  .arch-pipeline li + li::before { left: 50%; top: -13px; margin: 0 0 0 -4px; transform: rotate(135deg); }
  .experience-list li { grid-template-columns: 1fr; gap: 6px; }
  .dogfood-badge { font-size: 12px; }
  .feature-flow { gap: 56px; }
  .feature-extra { grid-template-columns: 1fr; }
  .detail-cta-inner { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .product-page .reveal { opacity: 1; transform: none; transition: none; }
  .arch-arrow-line, .arch-rail-track { animation: none !important; }
  .dogfood-badge::before { animation: none; }
}