.subpage {
  background: #f5f7fa;
}

.subpage .site-header .nav-shell {
  background: rgba(7, 16, 30, 0.54);
  border-color: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px) saturate(155%);
}

.subpage .main-nav > a[aria-current="page"] {
  color: #fff;
}

.subpage .main-nav > a[aria-current="page"]::after {
  transform: scaleX(1);
}

.page-hero {
  position: relative;
  min-height: 570px;
  overflow: hidden;
  background: #081526;
  color: #fff;
}

.page-hero::before,
.page-hero::after {
  position: absolute;
  content: "";
  pointer-events: none;
}

.page-hero::before {
  inset: 0;
  background:
    linear-gradient(90deg, rgba(5, 13, 24, 0.97) 0%, rgba(5, 13, 24, 0.82) 48%, rgba(5, 13, 24, 0.38) 100%),
    var(--page-image, linear-gradient(135deg, #10243e, #081526)) center / cover no-repeat;
  transform: scale(1.015);
}

.page-hero::after {
  inset: auto -8% -45% 42%;
  height: 520px;
  border-radius: 50%;
  background: rgba(202, 32, 39, 0.16);
  filter: blur(80px);
}

.page-hero.products-hero { --page-image: url("./assets/tracker-kit.webp"); }
.page-hero.tracker-hero { --page-image: url("./assets/tracker-family.webp"); }
.page-hero.services-hero { --page-image: url("./assets/tus-curve.webp"); }
.page-hero.solutions-hero { --page-image: url("./assets/vacuum-furnace.webp"); }
.page-hero.support-hero { --page-image: url("./assets/curve-analysis.webp"); }
.page-hero.about-hero { --page-image: url("./assets/hero-furnace.webp"); }

.page-hero-inner {
  position: relative;
  z-index: 1;
  display: flex;
  min-height: 570px;
  padding-top: 118px;
  padding-bottom: 72px;
  flex-direction: column;
  justify-content: flex-end;
}

.breadcrumb {
  display: flex;
  margin-bottom: 34px;
  align-items: center;
  gap: 10px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.84rem;
}

.breadcrumb a:hover {
  color: #fff;
}

.page-hero h1 {
  max-width: 880px;
  margin: 0;
  font-size: clamp(3rem, 6vw, 6.3rem);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 1.03;
}

.page-hero h1 em {
  color: #f04b50;
  font-style: normal;
}

.page-hero-lead {
  max-width: 700px;
  margin: 28px 0 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: clamp(1rem, 1.7vw, 1.24rem);
  line-height: 1.85;
}

.page-section {
  padding: 108px 0;
}

.page-section.white {
  background: #fff;
}

.page-section.dark {
  background: #081526;
  color: #fff;
}

.page-intro {
  display: grid;
  margin-bottom: 48px;
  grid-template-columns: minmax(0, 0.8fr) minmax(360px, 1.2fr);
  gap: 70px;
  align-items: end;
}

.page-intro h2,
.content-title {
  margin: 0;
  font-size: clamp(2.3rem, 4vw, 4.5rem);
  font-weight: 750;
  letter-spacing: -0.04em;
  line-height: 1.08;
}

.page-intro > p,
.content-lead {
  margin: 0;
  color: #607086;
  font-size: 1.04rem;
}

.dark .page-intro > p,
.dark .content-lead {
  color: rgba(255, 255, 255, 0.64);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 20px;
}

.info-card {
  grid-column: span 4;
  position: relative;
  min-height: 340px;
  overflow: hidden;
  border: 1px solid rgba(8, 21, 38, 0.08);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 18px 48px rgba(8, 21, 38, 0.07);
  transition: transform 0.35s cubic-bezier(0.22, 0.61, 0.36, 1), box-shadow 0.35s ease;
}

.info-card.wide {
  grid-column: span 8;
}

.info-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 28px 60px rgba(8, 21, 38, 0.12);
}

.info-card:active {
  transform: scale(0.985);
  transition-duration: 90ms;
}

.info-card-media {
  height: 220px;
  overflow: hidden;
  background: #eef1f5;
}

.info-card.wide .info-card-media {
  height: 280px;
}

.info-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.info-card:hover .info-card-media img {
  transform: scale(1.035);
}

.info-card-body {
  padding: 28px;
}

.card-kicker {
  display: block;
  margin-bottom: 12px;
  color: #a91b21;
  font-size: 0.7rem;
  font-weight: 750;
  letter-spacing: 0.14em;
}

.info-card h3 {
  margin: 0 0 12px;
  font-size: 1.55rem;
  letter-spacing: -0.025em;
  line-height: 1.22;
}

.info-card p {
  margin: 0;
  color: #66758a;
  font-size: 0.94rem;
}

.card-arrow {
  display: inline-flex;
  margin-top: 20px;
  align-items: center;
  gap: 8px;
  color: #a9151b;
  font-weight: 700;
}

.feature-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 56px;
  align-items: center;
}

.feature-media {
  min-height: 500px;
  overflow: hidden;
  border-radius: 28px;
  background: #e8edf2;
  box-shadow: var(--shadow);
}

.feature-media img {
  width: 100%;
  height: 100%;
  min-height: 500px;
  object-fit: cover;
}

.feature-copy h2 {
  margin: 0 0 24px;
  font-size: clamp(2.4rem, 4vw, 4.6rem);
  letter-spacing: -0.045em;
  line-height: 1.04;
}

.feature-copy > p {
  margin: 0 0 28px;
  color: #617086;
  font-size: 1.05rem;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip-row span {
  padding: 9px 13px;
  border: 1px solid #dfe5ec;
  border-radius: 999px;
  background: #fff;
  color: #48576a;
  font-size: 0.84rem;
  font-weight: 650;
}

.spec-list {
  display: grid;
  margin: 32px 0;
  border-top: 1px solid #dfe5ec;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.spec-list > div {
  padding: 18px 0;
  border-bottom: 1px solid #dfe5ec;
}

.spec-list > div:nth-child(odd) {
  padding-right: 24px;
}

.spec-list dt {
  color: #758398;
  font-size: 0.76rem;
}

.spec-list dd {
  margin: 3px 0 0;
  font-size: 1.05rem;
  font-weight: 700;
}

.process-grid {
  display: grid;
  margin-top: 52px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.process-step {
  min-height: 250px;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.055);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.08);
}

.process-step span {
  color: #f04b50;
  font-size: 0.76rem;
  font-weight: 750;
  letter-spacing: 0.12em;
}

.process-step h3 {
  margin: 48px 0 12px;
  font-size: 1.35rem;
}

.process-step p {
  margin: 0;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.92rem;
}

.standards-grid,
.solution-grid,
.support-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.standard-card,
.support-card {
  padding: 30px;
  border: 1px solid #e0e6ed;
  border-radius: 22px;
  background: #fff;
}

.standard-card strong,
.support-card h3 {
  display: block;
  margin: 0 0 12px;
  font-size: 1.22rem;
}

.standard-card p,
.support-card p {
  margin: 0;
  color: #66758a;
  font-size: 0.93rem;
}

.standard-card .text-link,
.info-card-body .text-link,
.solution-card .text-link {
  margin-top: 16px;
}

.solution-card {
  min-height: 410px;
  overflow: hidden;
  border-radius: 24px;
  background: #10243e;
  color: #fff;
  box-shadow: var(--shadow);
}

.solution-card img {
  width: 100%;
  height: 235px;
  object-fit: cover;
}

.solution-card div {
  padding: 26px;
}

.solution-card h3 {
  margin: 0 0 10px;
  font-size: 1.32rem;
}

.solution-card p {
  margin: 0;
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.92rem;
}

.comparison-wrap {
  overflow-x: auto;
  border: 1px solid #dfe5ec;
  border-radius: 22px;
  background: #fff;
}

.comparison-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
}

.comparison-table th,
.comparison-table td {
  padding: 19px 22px;
  border-bottom: 1px solid #e5e9ee;
  text-align: left;
}

.comparison-table th {
  background: #f3f6f9;
  color: #4c5c70;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}

.comparison-table td:first-child {
  font-weight: 700;
}

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

.faq-list details {
  border: 1px solid #dfe5ec;
  border-radius: 18px;
  background: #fff;
}

.faq-list summary {
  padding: 22px 24px;
  cursor: pointer;
  font-weight: 700;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  float: right;
  color: #a9151b;
  content: "+";
  font-size: 1.25rem;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list details p {
  max-width: 860px;
  margin: -4px 24px 22px;
  color: #66758a;
}

.timeline-long {
  position: relative;
  display: grid;
  gap: 0;
}

.timeline-long::before {
  position: absolute;
  top: 16px;
  bottom: 16px;
  left: 88px;
  width: 1px;
  background: #d8dee7;
  content: "";
}

.history-item {
  position: relative;
  display: grid;
  min-height: 120px;
  padding-bottom: 28px;
  grid-template-columns: 120px 1fr;
}

.history-item time {
  color: #a9151b;
  font-size: 1.25rem;
  font-weight: 800;
}

.history-item div {
  padding: 0 0 24px 28px;
}

.history-item div::before {
  position: absolute;
  top: 8px;
  left: 82px;
  width: 13px;
  height: 13px;
  border: 3px solid #f5f7fa;
  border-radius: 50%;
  background: #ca2027;
  box-shadow: 0 0 0 1px #ca2027;
  content: "";
}

.history-item h3 {
  margin: 0 0 8px;
  font-size: 1.28rem;
}

.history-item p {
  margin: 0;
  color: #66758a;
}

.cta-band {
  padding: 84px 0;
  background: #ca2027;
  color: #fff;
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.cta-inner h2 {
  margin: 0 0 10px;
  font-size: clamp(2rem, 4vw, 3.7rem);
  letter-spacing: -0.04em;
  line-height: 1.1;
}

.cta-inner p {
  max-width: 680px;
  margin: 0;
  color: rgba(255, 255, 255, 0.75);
}

.cta-band .button {
  flex: 0 0 auto;
  background: #fff;
  color: #8f1117;
}

.notice {
  margin-top: 28px;
  padding: 16px 18px;
  border-left: 3px solid #ca2027;
  background: #fff;
  color: #66758a;
  font-size: 0.86rem;
}

@media (max-width: 980px) {
  .page-intro,
  .feature-split {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .info-card,
  .info-card.wide {
    grid-column: span 6;
  }

  .process-grid,
  .standards-grid,
  .solution-grid,
  .support-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .page-hero,
  .page-hero-inner {
    min-height: 520px;
  }

  .page-hero::before {
    background:
      linear-gradient(180deg, rgba(5, 13, 24, 0.7), rgba(5, 13, 24, 0.98) 78%),
      var(--page-image, linear-gradient(135deg, #10243e, #081526)) center / cover no-repeat;
  }

  .page-hero-inner {
    padding-top: 112px;
    padding-bottom: 54px;
  }

  .page-section {
    padding: 76px 0;
  }

  .page-intro {
    margin-bottom: 34px;
  }

  .info-card,
  .info-card.wide {
    grid-column: 1 / -1;
  }

  .process-grid,
  .standards-grid,
  .solution-grid,
  .support-grid,
  .spec-list {
    grid-template-columns: 1fr;
  }

  .feature-media,
  .feature-media img {
    min-height: 360px;
  }

  .cta-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .history-item {
    grid-template-columns: 84px 1fr;
  }

  .timeline-long::before {
    left: 62px;
  }

  .history-item div {
    padding-left: 20px;
  }

  .history-item div::before {
    left: 56px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .info-card,
  .info-card-media img {
    transition: opacity 160ms ease;
  }

  .info-card:hover,
  .info-card:hover .info-card-media img {
    transform: none;
  }
}

@media (prefers-reduced-transparency: reduce) {
  .subpage .site-header .nav-shell {
    background: #07101e;
    backdrop-filter: none;
  }
}

@media (prefers-contrast: more) {
  .info-card,
  .standard-card,
  .support-card,
  .faq-list details {
    border-color: #526074;
  }
}