:root {
  --navy: #0b1b33;
  --navy-2: #132b49;
  --ink: #172033;
  --muted: #607086;
  --line: #d8e2ec;
  --soft: #f4f7fa;
  --soft-2: #eaf1f6;
  --white: #ffffff;
  --cyan: #168ec4;
  --green: #1a9d78;
  --warn: #9a5b06;
  --danger: #b42318;
  --radius: 8px;
  --shadow: 0 18px 42px rgba(11, 27, 51, 0.1);
}

/* Systems Narrative direction */

:root {
  --story-ink: #0f1728;
  --story-deep: #11233d;
  --story-petrol: #17354d;
  --story-mist: #f7f3ec;
  --story-sand: #ebe2d5;
  --story-line: #d9d2c7;
  --story-accent: #1b8a78;
  --story-accent-2: #275d8c;
  --story-serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
}

body {
  color: var(--story-ink);
  background:
    radial-gradient(circle at top left, rgba(39, 93, 140, 0.08), transparent 28rem),
    linear-gradient(180deg, #fcfbf8 0%, #f5f0e8 100%);
}

h1,
h2 {
  font-family: var(--story-serif);
  font-weight: 700;
}

.site-header {
  border-bottom: 1px solid rgba(217, 210, 199, 0.72);
  background: rgba(251, 248, 242, 0.86);
  backdrop-filter: blur(18px);
}

.site-header.is-scrolled {
  box-shadow: 0 18px 38px rgba(17, 35, 61, 0.08);
}

.nav-links a {
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 4px;
  width: 100%;
  height: 1px;
  transform: scaleX(0);
  transform-origin: left;
  background: currentColor;
  transition: transform 0.2s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
  transform: scaleX(1);
}

.header-cta,
.btn-primary {
  background: linear-gradient(135deg, var(--story-accent), #1f6a9e);
  box-shadow: 0 16px 32px rgba(23, 92, 142, 0.2);
}

.btn-secondary {
  color: #f6efe5;
  border-color: rgba(246, 239, 229, 0.36);
  background: rgba(246, 239, 229, 0.08);
}

.btn-outline {
  color: var(--story-petrol);
  border-color: rgba(17, 35, 61, 0.18);
  background: rgba(255, 255, 255, 0.82);
}

.hero-narrative,
.page-hero,
.section.dark {
  background:
    radial-gradient(circle at 14% 8%, rgba(90, 141, 191, 0.15), transparent 22rem),
    radial-gradient(circle at 84% 16%, rgba(27, 138, 120, 0.16), transparent 18rem),
    linear-gradient(180deg, #132741 0%, #0d182b 100%);
}

.hero-narrative::before,
.page-hero::before,
.section.dark::before {
  opacity: 0.12;
  background-image:
    linear-gradient(rgba(250, 243, 234, 0.42) 1px, transparent 1px),
    linear-gradient(90deg, rgba(250, 243, 234, 0.42) 1px, transparent 1px);
  background-size: 32px 32px;
}

.narrative-grid {
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 62px;
  padding: 96px 0 54px;
}

.hero-copy {
  display: grid;
  align-content: start;
  gap: 18px;
}

.hero-copy h1 {
  max-width: 12ch;
}

.hero-copy p {
  max-width: 54ch;
  color: rgba(239, 231, 219, 0.84);
  font-size: 18px;
}

.hero-actions,
.consultation-checklist .btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-signal-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 14px;
}

.signal-card,
.trust-module,
.advisory-card,
.story-card,
.consultation-item {
  border: 1px solid rgba(240, 234, 224, 0.58);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 18px 36px rgba(17, 35, 61, 0.08);
}

.signal-card {
  padding: 18px 18px 20px;
  color: #f4ede2;
  border-color: rgba(240, 234, 224, 0.14);
  background: rgba(248, 242, 233, 0.08);
  box-shadow: none;
}

.signal-label,
.panel-kicker,
.trust-title {
  display: inline-block;
  margin-bottom: 10px;
  color: #b7ddd7;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.signal-card strong,
.panel-kicker + p {
  display: block;
  font-size: 16px;
}

.signal-card p {
  margin: 10px 0 0;
  color: rgba(244, 237, 226, 0.72);
  font-size: 14px;
}

.hero-stage {
  position: relative;
  min-height: 580px;
}

.hero-stage-visual {
  overflow: hidden;
  height: 100%;
  margin: 0;
  border: 1px solid rgba(243, 235, 224, 0.14);
  border-radius: 30px;
  box-shadow: 0 36px 80px rgba(0, 0, 0, 0.24);
}

.hero-stage-visual img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 580px;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.02);
}

.hero-stage-panel {
  position: absolute;
  max-width: 280px;
  padding: 18px 18px 20px;
  border: 1px solid rgba(244, 236, 225, 0.14);
  border-radius: 22px;
  color: #f6efe5;
  background: rgba(9, 18, 31, 0.72);
  backdrop-filter: blur(18px);
}

.panel-top {
  left: -36px;
  top: 42px;
}

.panel-bottom {
  right: -32px;
  bottom: 36px;
}

.chapter-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0 0 22px;
}

.chapter-nav a {
  padding: 9px 14px;
  border: 1px solid rgba(244, 236, 225, 0.16);
  border-radius: 999px;
  color: rgba(246, 239, 229, 0.82);
  background: rgba(246, 239, 229, 0.06);
  font-size: 13px;
  font-weight: 700;
}

.chapter-nav a:hover {
  color: #ffffff;
  border-color: rgba(244, 236, 225, 0.38);
}

.section-credibility {
  padding-top: 54px;
}

.narrative-head {
  margin-bottom: 36px;
}

.narrative-head p {
  max-width: 58ch;
  font-size: 17px;
}

.credibility-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.credibility-metric {
  padding: 24px 22px;
  border: 1px solid rgba(17, 35, 61, 0.08);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.74);
}

.metric-value {
  display: block;
  font-family: var(--story-serif);
  font-size: clamp(34px, 5vw, 54px);
  line-height: 1;
  color: var(--story-deep);
}

.metric-label {
  display: block;
  margin-top: 12px;
  color: #4f5e71;
  font-weight: 700;
}

.trust-rail {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 20px;
}

.trust-module {
  padding: 24px;
}

.trust-title {
  color: var(--story-accent-2);
}

.trust-module p {
  margin: 0;
  color: #4f5e71;
}

.section-advisory {
  background:
    radial-gradient(circle at 86% 16%, rgba(39, 93, 140, 0.08), transparent 18rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0.2), transparent),
    transparent;
}

.advisory-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
  gap: 30px;
  align-items: start;
}

.advisory-intro {
  display: grid;
  gap: 18px;
}

.advisory-columns {
  display: grid;
  gap: 18px;
}

.advisory-card {
  padding: 26px 26px 28px;
}

.advisory-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: 16px;
  border-radius: 50%;
  color: var(--story-deep);
  background: linear-gradient(135deg, rgba(39, 93, 140, 0.12), rgba(27, 138, 120, 0.12));
  font-weight: 800;
}

.use-case-shell {
  display: grid;
  gap: 20px;
}

.use-case-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.use-case-tab {
  padding: 12px 16px;
  border: 1px solid rgba(17, 35, 61, 0.12);
  border-radius: 999px;
  color: var(--story-deep);
  background: rgba(255, 255, 255, 0.6);
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.18s ease, background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.use-case-tab.active,
.use-case-tab:hover {
  color: #ffffff;
  border-color: transparent;
  background: linear-gradient(135deg, var(--story-deep), var(--story-accent-2));
}

.use-case-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  overflow: hidden;
  border: 1px solid rgba(17, 35, 61, 0.08);
  border-radius: 30px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 24px 48px rgba(17, 35, 61, 0.08);
}

.use-case-panel[hidden] {
  display: none;
}

.use-case-panel figure {
  min-height: 420px;
  margin: 0;
}

.use-case-panel img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.use-case-content {
  display: grid;
  align-content: center;
  gap: 16px;
  padding: clamp(28px, 4vw, 48px);
}

.use-case-content .btn {
  justify-self: start;
}

.section-ecosystem {
  background:
    radial-gradient(circle at 12% 10%, rgba(27, 138, 120, 0.06), transparent 20rem),
    transparent;
}

.architecture-story-grid {
  display: grid;
  gap: 26px;
}

.story-card {
  padding: 28px;
  color: #f6efe5;
  border-color: rgba(244, 236, 225, 0.12);
  background: rgba(246, 239, 229, 0.06);
}

.story-card h3 {
  color: #f9f3ea;
  margin-bottom: 10px;
}

.story-card p {
  color: rgba(246, 239, 229, 0.74);
}

.consultation-band {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 28px;
  align-items: center;
  padding: clamp(28px, 4vw, 52px);
  border-radius: 30px;
}

.consultation-copy,
.consultation-checklist {
  display: grid;
  gap: 16px;
}

.consultation-checklist {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.consultation-item {
  padding: 20px 18px;
  color: #f4ede2;
  border-color: rgba(244, 236, 225, 0.12);
  background: rgba(244, 236, 225, 0.08);
  box-shadow: none;
}

.consultation-item strong {
  display: block;
  margin-bottom: 8px;
  color: #ffffff;
  font-size: 14px;
}

.consultation-item span {
  color: rgba(244, 237, 226, 0.76);
  font-size: 14px;
}

.footer-grid strong,
.footer-grid h3 {
  font-family: var(--story-serif);
}

@media (max-width: 1180px) {
  .credibility-grid,
  .trust-rail,
  .consultation-checklist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 980px) {
  .narrative-grid,
  .advisory-grid,
  .use-case-panel,
  .consultation-band {
    grid-template-columns: 1fr;
  }

  .hero-stage {
    min-height: 0;
  }

  .hero-stage-visual img {
    min-height: 420px;
  }

  .hero-stage-panel {
    position: static;
    max-width: none;
    margin-top: 14px;
  }

  .hero-signal-grid,
  .credibility-grid,
  .trust-rail,
  .consultation-checklist {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  .narrative-grid {
    padding-top: 74px;
  }

  .hero-copy h1 {
    max-width: none;
  }

  .hero-copy p,
  .narrative-head p {
    font-size: 16px;
  }

  .hero-stage-visual img,
  .use-case-panel figure {
    min-height: 240px;
  }

  .chapter-nav {
    gap: 8px;
    padding-bottom: 10px;
  }

  .chapter-nav a,
  .use-case-tab {
    width: 100%;
    text-align: center;
  }

  .consultation-band {
    padding: 24px;
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
  background: var(--white);
  overflow-x: hidden;
}

img,
svg,
picture {
  max-width: 100%;
}

img {
  height: auto;
}

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

p {
  margin: 0 0 1rem;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  color: var(--navy);
  line-height: 1.16;
  letter-spacing: 0;
}

h1 {
  max-width: 900px;
  font-size: clamp(36px, 6vw, 60px);
}

h2 {
  font-size: clamp(26px, 4vw, 40px);
}

h3 {
  font-size: 21px;
}

.container {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.container-wide {
  width: min(1280px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 74px;
  gap: 22px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  color: var(--navy);
  font-weight: 800;
}

.brand span:last-child {
  overflow-wrap: anywhere;
}

.brand-mark {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  border-radius: var(--radius);
  color: var(--white);
  background: linear-gradient(135deg, var(--cyan), var(--green));
  font-size: 18px;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--navy);
  background: var(--white);
  font-size: 22px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--navy-2);
  font-size: 14px;
  font-weight: 700;
}

.nav-links a {
  padding: 10px 0;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--cyan);
}

.header-cta {
  padding: 10px 15px;
  border-radius: var(--radius);
  color: var(--white);
  background: var(--green);
}

.hero {
  color: var(--white);
  background: var(--navy);
}

.hero-grid,
.detail-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 46px;
  align-items: center;
  padding: 68px 0;
  overflow: hidden;
}

/* 防止右列图片容器溢出左列 */
.hero-grid > figure,
.detail-hero-grid > figure,
.hero-pack-visual {
  min-width: 0;
  max-width: 100%;
}

.hero h1,
.hero h2,
.page-hero h1,
.page-hero h2 {
  color: var(--white);
}

.hero p,
.page-hero p {
  max-width: 760px;
  margin-top: 18px;
  color: #d8e6f2;
  font-size: 17px;
}

.page-hero {
  padding: 70px 0 52px;
  color: var(--white);
  background: var(--navy);
}

.eyebrow {
  display: inline-flex;
  margin-bottom: 14px;
  color: #79d7bd;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero-media,
.detail-hero-media {
  display: grid;
  place-items: center;
  min-height: 380px;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
}

.hero-media img,
.detail-main-image {
  display: block;
  width: 100%;
  max-height: 350px;
  object-fit: contain;
}

.section {
  padding: 72px 0;
}

.section.alt {
  background: var(--soft);
}

.section.dark {
  color: var(--white);
  background: var(--navy-2);
}

.section.dark h2,
.section.dark h3 {
  color: var(--white);
}

.section.dark p {
  color: #d9e6f1;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 30px;
}

.section-head p {
  max-width: 690px;
  color: var(--muted);
}

.grid {
  display: grid;
  gap: 22px;
}

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

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  min-width: 0;
  height: 100%;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 8px 24px rgba(11, 27, 51, 0.05);
}

.dark-card {
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.08);
}

.icon-box {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin-bottom: 16px;
  border-radius: var(--radius);
  color: var(--white);
  background: linear-gradient(135deg, var(--cyan), var(--green));
  font-weight: 800;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 800;
  cursor: pointer;
}

.btn-primary {
  color: var(--white);
  background: var(--green);
}

.btn-secondary {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.36);
  background: rgba(255, 255, 255, 0.08);
}

.btn-outline {
  color: var(--cyan);
  border-color: var(--cyan);
  background: var(--white);
}

.btn-light {
  color: var(--navy);
  background: var(--white);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 4px 10px;
  border-radius: 999px;
  color: var(--navy);
  background: var(--soft-2);
  font-size: 12px;
  font-weight: 800;
}

.tag.green {
  color: #075f46;
  background: #dff6ef;
}

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

.clean-list li {
  position: relative;
  padding-left: 18px;
  color: var(--muted);
  font-size: 14px;
}

.clean-list li::before {
  content: "";
  position: absolute;
  top: 0.74em;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
}

.product-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

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

.filter-btn {
  min-height: 40px;
  padding: 9px 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--navy);
  background: var(--white);
  font-weight: 800;
  cursor: pointer;
}

.filter-btn.active {
  color: var(--white);
  border-color: var(--cyan);
  background: var(--cyan);
}

.product-card {
  display: flex;
  flex-direction: column;
  /* overflow: hidden 移除：防止卡片内标题文字被截断 */
}

.product-media {
  overflow: hidden;
  display: grid;
  place-items: center;
  min-height: 210px;
  margin: -24px -24px 20px;
  padding: 18px;
  background: #f7fafc;
}

.product-card-image {
  display: block;
  width: 100%;
  height: 190px;
  object-fit: contain;
}

.product-card h3 {
  margin: 8px 0 8px;
  /* 防止长产品名截断溢出 */
  word-break: break-word;
  overflow-wrap: break-word;
  hyphens: auto;
}

.product-summary {
  color: var(--muted);
  font-size: 14px;
}

.product-points {
  margin: 12px 0 20px;
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: auto;
}

.detail-shell {
  width: min(1280px, calc(100vw - 48px));
  max-width: 1280px;
  margin: 0 auto;
  padding: 70px 0;
}

.detail-page-layout,
.detail-hero-layout,
.detail-related-wrap {
  width: min(1280px, calc(100vw - 48px));
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
}

.detail-layout,
.product-detail-main {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 36px;
  align-items: start;
  width: 100%;
}

.detail-main {
  display: grid;
  gap: 26px;
  min-width: 0;
}

.product-detail-main .detail-main {
  width: 100%;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
  color: #c8d7e6;
  font-size: 13px;
  font-weight: 700;
}

.breadcrumb a:hover {
  color: #79d7bd;
}

.detail-section {
  display: grid;
  gap: 14px;
}

.detail-sidebar,
.product-detail-sidebar {
  position: sticky;
  top: 96px;
  display: grid;
  gap: 16px;
  align-self: start;
}

.spec-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.spec-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
}

.spec-table th,
.spec-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.spec-table th {
  width: 34%;
  color: var(--navy);
  background: #eef4f8;
}

.spec-table tr:last-child th,
.spec-table tr:last-child td {
  border-bottom: 0;
}

.image-section {
  display: grid;
  gap: 14px;
  margin-top: 32px;
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(280px, 1fr));
  gap: 22px;
  width: 100%;
}

.image-grid.has-many {
  grid-template-columns: repeat(2, minmax(280px, 1fr));
}

.image-tile {
  display: grid;
  place-items: center;
  min-height: 270px;
  margin: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f7fafc;
}

.image-section-single .image-grid {
  grid-template-columns: minmax(420px, 720px);
}

.image-section-single .image-tile,
.image-section-dimensions .image-tile {
  min-height: 380px;
}

.image-section-application .image-tile {
  min-height: 320px;
  aspect-ratio: 16 / 10;
}

.product-gallery-image {
  display: block;
  width: 100%;
  min-height: 260px;
  max-height: 460px;
  object-fit: contain;
  background: #f5f8fb;
  border-radius: var(--radius);
  padding: 18px;
}

.image-section-dimensions .product-gallery-image,
.image-section-application .product-gallery-image {
  min-height: 320px;
}

.image-zoom {
  border: 0;
  background: transparent;
  cursor: zoom-in;
  width: 100%;
  padding: 0;
}

.related-section,
.detail-related-wrap {
  display: block;
  width: min(1280px, calc(100vw - 48px));
  max-width: 1280px;
  margin: 56px auto 0;
  clear: both;
}

.related-products-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(260px, 1fr));
  gap: 28px;
  width: 100%;
}

.related-products-grid .product-card {
  width: 100%;
  max-width: none;
}

.cta-band {
  padding: 34px;
  border-radius: var(--radius);
  color: var(--white);
  background: var(--navy);
}

.cta-band h2 {
  color: var(--white);
}

.notice {
  padding: 14px 16px;
  border: 1px solid #f3cf84;
  border-radius: var(--radius);
  color: var(--warn);
  background: #fff8e8;
}

.rfq-context {
  margin: 18px 0;
  padding: 14px 16px;
  border: 1px solid #98dec6;
  border-radius: var(--radius);
  color: #075f46;
  background: #e8f8f2;
}

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

.field {
  display: grid;
  gap: 7px;
}

.field.full {
  grid-column: 1 / -1;
}

label {
  color: var(--navy);
  font-size: 14px;
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  min-height: 44px;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  font: inherit;
  background: var(--white);
}

textarea {
  min-height: 140px;
  resize: vertical;
}

.error-text {
  display: none;
  color: var(--danger);
  font-size: 12px;
}

.field.error input,
.field.error select,
.field.error textarea {
  border-color: var(--danger);
}

.field.error .error-text {
  display: block;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: none;
  place-items: center;
  padding: 24px;
  background: rgba(5, 15, 28, 0.82);
}

.modal.open {
  display: grid;
}

.modal-inner {
  position: relative;
  max-width: min(1100px, 96vw);
  max-height: 92vh;
}

.modal img {
  display: block;
  max-width: 100%;
  max-height: 88vh;
  border-radius: var(--radius);
  background: var(--white);
}

.modal-close {
  position: absolute;
  top: -14px;
  right: -14px;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--navy);
  background: var(--white);
  font-size: 22px;
  cursor: pointer;
}

.site-footer {
  padding: 52px 0 28px;
  color: #c8d7e6;
  background: var(--navy);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr repeat(3, 1fr);
  gap: 28px;
}

.site-footer h3,
.site-footer strong {
  color: var(--white);
}

.footer-links {
  display: grid;
  gap: 9px;
  margin-top: 14px;
}

.footer-links a:hover {
  color: #79d7bd;
}

.footer-bottom {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: #9fb4c7;
  font-size: 13px;
}

.empty-state {
  padding: 24px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  color: var(--muted);
  background: var(--soft);
}

@media (min-width: 1320px) {
  .image-grid.has-many {
    grid-template-columns: repeat(3, minmax(220px, 1fr));
  }
}

@media (max-width: 1100px) {
  .detail-layout,
  .product-detail-main {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 28px;
  }

  .image-grid,
  .image-grid.has-many {
    grid-template-columns: repeat(2, minmax(220px, 1fr));
  }

  .related-products-grid {
    grid-template-columns: repeat(2, minmax(240px, 1fr));
  }
}

@media (max-width: 980px) {
  .nav-toggle {
    display: inline-grid;
    place-items: center;
  }

  .nav-links {
    position: absolute;
    top: 74px;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    border-bottom: 1px solid var(--line);
    background: var(--white);
  }

  .nav-links.open {
    display: flex;
  }

  .header-cta {
    text-align: center;
  }

  .hero-grid,
  .detail-hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-grid,
  .detail-hero-grid {
    padding: 48px 0;
  }

  .detail-sidebar {
    position: static;
  }

  .grid-4,
  .grid-3,
  .related-products-grid,
  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .section-head {
    align-items: start;
    flex-direction: column;
  }

  /* 980px：section-head 内按钮不撑满，保持紧凑 */
  .section-head .btn {
    width: auto;
    align-self: flex-start;
  }
}

@media (max-width: 900px) {
  .detail-shell,
  .detail-page-layout,
  .detail-hero-layout,
  .detail-related-wrap {
    width: min(100%, calc(100vw - 32px));
  }

  .detail-layout,
  .product-detail-main {
    grid-template-columns: 1fr;
  }

  .detail-sidebar,
  .product-detail-sidebar {
    position: static;
  }

  .image-section-single .image-grid,
  .image-grid,
  .image-grid.has-many,
  .related-products-grid {
    grid-template-columns: 1fr;
  }

  .product-gallery-image {
    min-height: 200px;
    max-height: none;
  }
}

@media (max-width: 640px) {
  .container,
  .container-wide {
    width: min(100% - 24px, 1280px);
  }

  .grid-4,
  .grid-3,
  .grid-2,
  .image-grid,
  .image-grid.has-many,
  .related-products-grid,
  .footer-grid,
  .rfq-form {
    grid-template-columns: 1fr;
  }

  .hero-media,
  .detail-hero-media {
    min-height: 250px;
    padding: 14px;
  }

  .section {
    padding: 52px 0;
  }

  .page-hero {
    padding: 54px 0 40px;
  }

  .image-tile,
  .image-section-single .image-tile,
  .image-section-dimensions .image-tile,
  .image-section-application .image-tile {
    min-height: 210px;
    aspect-ratio: auto;
  }

  .product-gallery-image {
    max-height: none;
  }

  .btn,
  .form-actions .btn {
    width: 100%;
  }

  /* section-head 内的导航按钮不撑满，保持紧凑 */
  .section-head .btn,
  .btn-row .btn-outline:not(.form-actions .btn) {
    width: auto;
  }

  .spec-table {
    min-width: 520px;
  }

  .product-toolbar {
    align-items: stretch;
  }

  .filters,
  .filter-btn {
    width: 100%;
  }
}

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

.faq-list details {
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--soft);
}

.faq-list summary {
  color: var(--navy);
  cursor: pointer;
  font-weight: 800;
}

.faq-list p {
  margin: 10px 0 0;
  color: var(--muted);
}

.btn:focus-visible,
.nav-links a:focus-visible,
.image-zoom:focus-visible,
.filter-btn:focus-visible,
.nav-toggle:focus-visible {
  outline: 3px solid rgba(22, 142, 196, 0.35);
  outline-offset: 3px;
}

@media (max-width: 480px) {
  .detail-shell,
  .detail-page-layout,
  .detail-hero-layout,
  .detail-related-wrap {
    width: min(100%, calc(100vw - 24px));
  }

  .product-gallery-image {
    min-height: 160px;
    padding: 10px;
  }
}

/* === VISUAL SYSTEM FINAL PASS === */
:root {
  --navy: #07172b;
  --navy-2: #0d2440;
  --ink: #111a2b;
  --muted: #5b697b;
  --line: #d6e1ea;
  --soft: #f3f6f9;
  --soft-2: #e8eff5;
  --cyan: #167fba;
  --blue: #1f6feb;
  --green: #27b79a;
  --radius: 14px;
  --radius-lg: 24px;
  --shadow: 0 24px 70px rgba(7, 23, 43, 0.12);
}

body {
  font-family: "Aptos", "Segoe UI", "Helvetica Neue", sans-serif;
  background:
    radial-gradient(circle at 10% -10%, rgba(31, 111, 235, 0.08), transparent 30rem),
    linear-gradient(180deg, #ffffff 0%, #f7fafc 100%);
}

h1 {
  font-size: clamp(38px, 5vw, 64px);
  letter-spacing: -0.045em;
}

h2 {
  font-size: clamp(28px, 3.5vw, 46px);
  letter-spacing: -0.035em;
}

h3 {
  font-size: 22px;
  letter-spacing: -0.02em;
}

.container {
  width: min(1220px, calc(100% - 36px));
}

.container-wide {
  width: min(1280px, calc(100% - 48px));
}

.site-header {
  border-bottom-color: rgba(214, 225, 234, 0.8);
  transition: box-shadow 0.2s ease, background 0.2s ease;
}

.site-header.is-scrolled {
  box-shadow: 0 10px 32px rgba(7, 23, 43, 0.1);
}

.nav-wrap {
  min-height: 68px;
}

.brand {
  gap: 12px;
  letter-spacing: -0.02em;
}

.brand-logo {
  display: block;
  width: min(280px, 58vw);
  height: 64px;
  object-fit: contain;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border: 1px solid rgba(39, 183, 154, 0.36);
  border-radius: 13px;
  background: #07172b;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08), 0 10px 26px rgba(7, 23, 43, 0.16);
}

.brand-mark svg {
  width: 31px;
  height: 31px;
  fill: none;
  color: #ffffff;
}

.brand-mark svg path:first-child {
  fill: currentColor;
  stroke: none;
}

.brand-mark svg path:nth-child(2) {
  stroke: var(--green);
  stroke-width: 3.2;
  stroke-linecap: round;
}

.brand-mark svg circle {
  fill: var(--green);
}

.nav-links {
  gap: 20px;
  font-size: 13px;
  letter-spacing: 0.01em;
}

.header-cta,
.btn-primary {
  color: #ffffff;
  background: #11866f;
  box-shadow: 0 12px 26px rgba(17, 134, 111, 0.22);
}

.btn,
.filter-btn {
  border-radius: 999px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.btn:hover,
.filter-btn:hover,
.product-card:hover {
  transform: translateY(-2px);
}

.hero,
.page-hero,
.section.dark {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(39, 183, 154, 0.16), transparent 34%),
    radial-gradient(circle at 82% 18%, rgba(31, 111, 235, 0.22), transparent 28rem),
    #07172b;
}

.hero::before,
.page-hero::before,
.section.dark::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.22;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 42px 42px;
  pointer-events: none;
}

.hero > *,
.page-hero > *,
.section.dark > * {
  position: relative;
}

.hero-grid,
.detail-hero-grid {
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 56px;
  padding: 82px 0;
}

.hero-ecosystem {
  position: relative;
  min-height: 530px;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 30px;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.13), rgba(255, 255, 255, 0.05));
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.26);
}

.hero-ecosystem::before {
  content: "";
  position: absolute;
  inset: 12%;
  border: 1px dashed rgba(121, 215, 189, 0.34);
  border-radius: 50%;
}

.hero-ecosystem figure {
  position: absolute;
  display: grid;
  gap: 8px;
  margin: 0;
  color: #dbe9f3;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.hero-ecosystem img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 18px 28px rgba(0, 0, 0, 0.28));
}

.ecosystem-main {
  left: 12%;
  right: 13%;
  top: 15%;
  height: 290px;
}

.ecosystem-item {
  width: 190px;
  min-height: 150px;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.09);
}

.ecosystem-item.dc {
  left: 4%;
  bottom: 7%;
}

.ecosystem-item.ac {
  right: 4%;
  bottom: 8%;
}

.ecosystem-item.controller {
  right: 6%;
  top: 5%;
}

.hero-pack-visual {
  overflow: hidden;
  margin: 0;
  min-height: 520px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 30px;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.26);
}

.hero-pack-visual img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 520px;
  object-fit: cover;
}

.section {
  padding: 86px 0;
}

.section.alt {
  background:
    radial-gradient(circle at 15% 20%, rgba(22, 127, 186, 0.08), transparent 22rem),
    var(--soft);
}

.section-head.compact {
  margin-bottom: 16px;
}

.card,
.product-card,
.image-tile,
.faq-list details {
  border-color: rgba(214, 225, 234, 0.92);
  border-radius: var(--radius-lg);
}

.card {
  padding: 28px;
}

.product-ecosystem-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
}

.ecosystem-overview-visual {
  overflow: hidden;
  margin: 0 0 28px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: #eaf0f5;
  box-shadow: 0 18px 48px rgba(7, 23, 43, 0.08);
}

.ecosystem-overview-visual img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 6.5;
  object-fit: cover;
}

.ecosystem-card {
  display: grid;
  overflow: hidden;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: #ffffff;
  box-shadow: 0 16px 40px rgba(7, 23, 43, 0.07);
}

.ecosystem-media {
  display: grid;
  place-items: center;
  min-height: 240px;
  padding: 22px;
  background: linear-gradient(145deg, #eef4f8, #ffffff);
}

.ecosystem-card-image {
  width: 100%;
  height: 210px;
  object-fit: contain;
  transition: transform 0.25s ease;
}

.ecosystem-card:hover .ecosystem-card-image,
.product-card:hover img,
.application-card:hover img,
.solution-panel:hover img {
  transform: scale(1.035);
}

.ecosystem-body {
  display: grid;
  gap: 12px;
  padding: 24px;
}

.engineering-flow {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
  gap: 50px;
  align-items: start;
}

.flow-copy {
  position: sticky;
  top: 98px;
}

.flow-rail {
  display: grid;
  gap: 18px;
  position: relative;
}

.flow-rail::before {
  content: "";
  position: absolute;
  left: 30px;
  top: 28px;
  bottom: 28px;
  width: 2px;
  background: linear-gradient(var(--cyan), var(--green));
}

.flow-step {
  position: relative;
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 18px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: #ffffff;
  box-shadow: 0 14px 34px rgba(7, 23, 43, 0.06);
}

/* 右侧文字容器：独占第二列，防止 h3/p 各自成为 grid item 导致宽度只有 64px */
.flow-body {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.flow-body h3,
.flow-body p {
  min-width: 0;
  word-break: normal;
  overflow-wrap: break-word;
  white-space: normal;
  margin: 0;
}

.line-icon {
  /* flex 替代 inline-grid，防止在 grid 子项中被拉伸 */
  display: flex;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  min-width: 52px;
  min-height: 52px;
  border-radius: 16px;
  color: var(--cyan);
  background: #eaf5fa;
  /* 防止作为 grid item 被拉伸 */
  align-self: start;
  justify-self: start;
}

.line-icon svg {
  display: block;
  width: 32px;
  height: 32px;
  min-width: 32px;
  min-height: 32px;
  max-width: 32px;
  max-height: 32px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.solution-teaser-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.solution-teaser {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.08);
}

.solution-teaser img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.solution-teaser div {
  padding: 24px;
}

.solution-stack .container-wide {
  display: grid;
  gap: 28px;
}

.solution-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.98fr) minmax(0, 1.02fr);
  gap: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: #ffffff;
  box-shadow: var(--shadow);
}

.solution-panel.reverse figure {
  order: 2;
}

.solution-panel figure {
  min-height: 390px;
  margin: 0;
  background: #eaf0f5;
}

.solution-panel img,
.application-card img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.25s ease;
}

.solution-content {
  display: grid;
  align-content: center;
  gap: 16px;
  padding: clamp(28px, 4vw, 52px);
}

.solution-content .btn {
  justify-self: start;
  margin-top: 10px;
}

.diagram-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.diagram-card {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 26px;
  background: #ffffff;
  box-shadow: 0 16px 42px rgba(7, 23, 43, 0.07);
}

.diagram-card img {
  width: 100%;
  min-height: 260px;
  object-fit: contain;
}

.diagram-card figcaption {
  color: var(--ink);
  font-weight: 800;
}

.application-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.application-card {
  display: grid;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 26px;
  background: #ffffff;
  box-shadow: 0 16px 42px rgba(7, 23, 43, 0.07);
}

.application-card.large {
  grid-column: span 3;
  grid-template-columns: minmax(0, 1.12fr) minmax(360px, 0.88fr);
}

.application-card img {
  height: 270px;
}

.application-card.large img {
  height: 100%;
  min-height: 430px;
}

.application-card div {
  display: grid;
  align-content: start;
  gap: 12px;
  padding: 26px;
}

.application-card.large div {
  align-content: center;
  padding: clamp(30px, 4vw, 54px);
}

.capability-band {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.capability-card {
  display: grid;
  align-content: start;
  gap: 16px;
  min-height: 260px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 26px;
  background:
    linear-gradient(145deg, rgba(22, 127, 186, 0.07), transparent),
    #ffffff;
  box-shadow: 0 16px 42px rgba(7, 23, 43, 0.07);
}

.cta-band-visual {
  overflow: hidden;
  position: relative;
  isolation: isolate;
  background:
    linear-gradient(90deg, rgba(7, 23, 43, 0.94), rgba(7, 23, 43, 0.72)),
    url("../visual-pack/rfq/rfq_technical_quote_banner_1600x520.jpg") center / cover no-repeat;
}

.cta-band-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(circle at 80% 20%, rgba(39, 183, 154, 0.22), transparent 24rem);
}

.product-media {
  min-height: 260px;
  background: linear-gradient(145deg, #eef4f8, #ffffff);
}

.product-card-image {
  height: 230px;
  transition: transform 0.25s ease;
}

.detail-hero-media {
  min-height: 460px;
  border-radius: 30px;
}

.detail-main-image {
  max-height: 430px;
}

.spec-table th {
  background: #edf4f8;
}

/* reveal-on-scroll：仅在 body.js-ready 时隐藏，防止 JS 未执行导致内容永久不可见 */
body.js-ready .reveal-on-scroll {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

body.js-ready .reveal-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto;
    transition-duration: 0.01ms;
    animation-duration: 0.01ms;
  }

  body.js-ready .reveal-on-scroll {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 1180px) {
  .diagram-grid,
  .product-ecosystem-grid,
  .application-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .application-card.large {
    grid-column: span 2;
  }
}

@media (max-width: 980px) {
  .hero-grid,
  .detail-hero-grid,
  .engineering-flow,
  .solution-panel,
  .application-card.large {
    grid-template-columns: 1fr;
  }

  .solution-panel.reverse figure {
    order: 0;
  }

  .flow-copy {
    position: static;
  }

  .hero-ecosystem {
    min-height: 500px;
  }

  .product-ecosystem-grid,
  .solution-teaser-grid,
  .application-grid,
  .diagram-grid,
  .capability-band {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .application-card.large {
    grid-column: span 2;
  }
}

@media (max-width: 700px) {
  .container,
  .container-wide {
    width: min(100% - 24px, 1280px);
  }

  h1 {
    font-size: clamp(34px, 11vw, 46px);
  }

  /* ── Hero ── */
  .hero-ecosystem {
    min-height: auto;
    display: grid;
    gap: 14px;
  }

  .hero-ecosystem::before {
    display: none;
  }

  .hero-ecosystem figure,
  .ecosystem-main,
  .ecosystem-item,
  .ecosystem-item.dc,
  .ecosystem-item.ac,
  .ecosystem-item.controller {
    position: static;
    width: 100%;
    height: auto;
    min-height: 0;
  }

  .hero-ecosystem img {
    height: 190px;
  }

  /* Hero 主视觉图在移动端高度收紧，防止占屏过大 */
  .hero-pack-visual,
  .hero-pack-visual img {
    min-height: 200px;
    max-height: 260px;
    object-fit: cover;
  }

  /* ── 品牌 Logo ── */
  .brand-logo {
    width: min(200px, 58vw);
    height: 46px;
  }

  .brand span:last-child {
    max-width: 180px;
  }

  /* ── Section head：移动端按钮不撑满 ── */
  .section-head {
    gap: 14px;
  }

  .section-head .btn {
    width: auto;
    align-self: flex-start;
  }

  /* ── Product Categories 总览图比例 ── */
  .ecosystem-overview-visual img {
    aspect-ratio: 16 / 10;
  }

  /* ── Ecosystem 卡片：移动端单列，图片高度收紧 ── */
  .product-ecosystem-grid,
  .solution-teaser-grid,
  .application-grid,
  .diagram-grid,
  .capability-band {
    grid-template-columns: 1fr;
  }

  .ecosystem-media {
    min-height: 180px;
    padding: 16px;
  }

  .ecosystem-card-image {
    height: 160px;
  }

  /* ── Featured Products (grid-4 → 单列) ── */
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .product-media {
    min-height: 200px;
  }

  .product-card-image {
    height: 180px;
  }

  /* ── Solutions teaser 图片高度 ── */
  .solution-teaser img {
    height: 180px;
  }

  /* ── Application cards ── */
  .application-card.large {
    grid-column: span 1;
  }

  .solution-panel figure,
  .application-card.large img {
    min-height: 220px;
  }

  .application-card img {
    height: 200px;
  }

  .diagram-card img {
    min-height: 180px;
  }

  /* ── Buyer Value flow-step：移动端单列，防止 icon 被拉伸为黑块 ── */
  .flow-step {
    grid-template-columns: 1fr;
  }

  .flow-step .line-icon {
    width: 52px;
    height: 52px;
    min-width: 52px;
    justify-self: start;
    align-self: start;
  }

  .flow-step .line-icon svg {
    width: 32px;
    height: 32px;
    max-width: 32px;
    max-height: 32px;
  }

  .flow-rail::before {
    display: none;
  }

  /* ── CTA Band ── */
  .cta-band {
    padding: 28px 20px;
  }

  /* ── Footer ── */
.footer-grid {
  grid-template-columns: 1fr;
  gap: 20px;
  }
}

/* High-fidelity refinement */

body.page-home,
body.page-solutions,
body.page-about,
body.page-contact {
  color: var(--story-ink);
  font-family: "Avenir Next", "Segoe UI", Arial, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(39, 93, 140, 0.08), transparent 28rem),
    linear-gradient(180deg, #fcfbf8 0%, #f5f0e8 100%);
}

.page-home h1,
.page-home h2,
.page-home h3,
.page-solutions h1,
.page-solutions h2,
.page-solutions h3,
.page-about h1,
.page-about h2,
.page-contact h1,
.page-contact h2 {
  font-family: var(--story-serif);
  color: var(--story-deep);
}

.page-home .hero h1,
.page-home .hero h2,
.page-solutions .page-hero h1,
.page-solutions .page-hero h2,
.page-about .page-hero h1,
.page-about .page-hero h2,
.page-contact .page-hero h1,
.page-contact .page-hero h2,
.page-home .section.dark h2,
.page-home .section.dark h3 {
  color: #fff;
}

.page-home .hero,
.page-solutions .page-hero,
.page-about .page-hero,
.page-contact .page-hero,
.page-home .section.dark {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 14% 8%, rgba(90, 141, 191, 0.15), transparent 22rem),
    radial-gradient(circle at 84% 16%, rgba(27, 138, 120, 0.16), transparent 18rem),
    linear-gradient(180deg, #132741 0%, #0d182b 100%);
}

.page-home .hero::before,
.page-solutions .page-hero::before,
.page-about .page-hero::before,
.page-contact .page-hero::before,
.page-home .section.dark::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.12;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(250, 243, 234, 0.42) 1px, transparent 1px),
    linear-gradient(90deg, rgba(250, 243, 234, 0.42) 1px, transparent 1px);
  background-size: 32px 32px;
}

.page-home .nav-links a:hover,
.page-home .nav-links a.active,
.page-solutions .nav-links a:hover,
.page-solutions .nav-links a.active,
.page-about .nav-links a:hover,
.page-about .nav-links a.active,
.page-contact .nav-links a:hover,
.page-contact .nav-links a.active {
  color: #166b99;
}

.page-home .header-cta,
.page-home .btn-primary,
.page-solutions .header-cta,
.page-solutions .btn-primary,
.page-about .header-cta,
.page-contact .header-cta {
  background: linear-gradient(135deg, var(--story-accent), #1f6a9e);
  box-shadow: 0 16px 32px rgba(23, 92, 142, 0.2);
}

.page-home .btn,
.page-solutions .btn,
.page-about .btn,
.page-contact .btn {
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease, background 0.22s ease;
}

.page-home .btn:hover,
.page-solutions .btn:hover,
.page-about .btn:hover,
.page-contact .btn:hover {
  transform: translateY(-2px);
}

.page-home .btn-secondary,
.page-solutions .btn-secondary {
  color: #f6efe5;
  border-color: rgba(246, 239, 229, 0.36);
  background: rgba(246, 239, 229, 0.08);
}

.page-home .btn-outline,
.page-solutions .btn-outline {
  color: var(--story-petrol);
  border-color: rgba(17, 35, 61, 0.18);
  background: rgba(255, 255, 255, 0.82);
}

.page-home .narrative-grid {
  position: relative;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 68px;
  padding: 110px 0 54px;
}

.page-home .hero-copy {
  position: relative;
  z-index: 1;
  gap: 20px;
}

.page-home .hero-copy h1 {
  max-width: 11.5ch;
  font-size: clamp(50px, 6vw, 84px);
  letter-spacing: -0.04em;
  line-height: 0.96;
}

.page-home .hero-copy p {
  max-width: 56ch;
  margin: 0;
  color: rgba(239, 231, 219, 0.84);
  font-size: 18px;
}

.page-home .hero-stage {
  min-height: 640px;
}

.page-home .hero-stage-visual {
  border-radius: 34px;
  transform: perspective(1200px) rotateY(-6deg) rotateX(1deg);
  transform-origin: center;
}

.page-home .hero-stage-visual img {
  min-height: 640px;
}

.page-home .hero-stage-panel {
  box-shadow: 0 22px 52px rgba(0, 0, 0, 0.26);
}

.page-home .chapter-nav,
.page-solutions .chapter-nav-page {
  position: relative;
  z-index: 2;
  gap: 12px;
}

.page-home .chapter-nav a,
.page-solutions .chapter-nav-page a {
  backdrop-filter: blur(14px);
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.page-home .chapter-nav a:hover,
.page-home .chapter-nav a.is-active,
.page-solutions .chapter-nav-page a:hover,
.page-solutions .chapter-nav-page a.is-active {
  color: #ffffff;
  border-color: rgba(244, 236, 225, 0.36);
  background: rgba(246, 239, 229, 0.14);
  transform: translateY(-1px);
}

.section-operating-brief {
  padding-top: 26px;
}

.operating-brief-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.brief-intro,
.brief-column {
  padding: 30px;
  border-radius: 28px;
  border: 1px solid rgba(17, 35, 61, 0.08);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 18px 38px rgba(17, 35, 61, 0.06);
}

.brief-intro {
  background:
    radial-gradient(circle at top right, rgba(39, 93, 140, 0.08), transparent 14rem),
    rgba(255, 255, 255, 0.82);
}

.brief-label {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--story-accent-2);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.brief-column h3,
.brief-intro h2 {
  margin-bottom: 14px;
}

.brief-column p,
.brief-intro p,
.brief-column li {
  color: #4f5e71;
}

.page-home .section-credibility {
  padding-top: 30px;
}

.page-home .credibility-metric,
.page-solutions .credibility-metric {
  position: relative;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.8);
  box-shadow: 0 18px 40px rgba(17, 35, 61, 0.06);
}

.page-home .credibility-metric::before,
.page-solutions .credibility-metric::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--story-accent), var(--story-accent-2));
  opacity: 0.8;
}

.page-home .advisory-grid {
  grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
  gap: 34px;
}

.page-home .advisory-intro {
  position: sticky;
  top: 108px;
  align-self: start;
  padding: 8px 0;
}

.advisory-rail {
  display: grid;
  gap: 14px;
}

.advisory-note {
  padding: 18px 20px;
  border: 1px solid rgba(17, 35, 61, 0.08);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.72);
}

.advisory-note-label {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--story-accent-2);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.advisory-note p {
  margin: 0;
  color: #516074;
}

.page-home .advisory-card,
.page-home .use-case-panel,
.page-solutions .solution-panel,
.page-home .story-card {
  border-radius: 30px;
}

.page-home .use-case-shell {
  gap: 24px;
}

.page-home .use-case-tabs {
  position: sticky;
  top: 88px;
  z-index: 3;
  padding: 10px;
  border: 1px solid rgba(17, 35, 61, 0.08);
  border-radius: 999px;
  background: rgba(251, 248, 242, 0.78);
  backdrop-filter: blur(14px);
}

.page-home .use-case-tab {
  box-shadow: inset 0 0 0 1px rgba(17, 35, 61, 0.03);
}

.page-home .use-case-panel.active {
  animation: usecasePanelIn 360ms ease;
}

@keyframes usecasePanelIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-home .flow-step,
.page-solutions .solution-panel {
  transition: transform 0.24s ease, box-shadow 0.24s ease, border-color 0.24s ease;
}

.page-home .flow-step:hover,
.page-solutions .solution-panel:hover {
  transform: translateY(-4px);
  box-shadow: 0 22px 42px rgba(17, 35, 61, 0.08);
}

.page-home .product-ecosystem-grid {
  margin-top: 26px;
}

.page-home .story-card {
  background: rgba(246, 239, 229, 0.07);
}

.page-home .consultation-band,
.page-solutions .consultation-band {
  border: 1px solid rgba(244, 236, 225, 0.14);
  background:
    radial-gradient(circle at top right, rgba(27, 138, 120, 0.14), transparent 14rem),
    rgba(246, 239, 229, 0.06);
  box-shadow: 0 28px 56px rgba(5, 12, 20, 0.16);
}

.page-solutions .page-hero {
  padding: 84px 0 44px;
}

.page-solutions .page-hero p {
  max-width: 68ch;
}

.page-solutions .chapter-nav-page {
  margin-top: 22px;
}

.page-solutions .solution-stack .section-head {
  margin-bottom: 34px;
}

.page-solutions .solution-panel {
  overflow: hidden;
  border: 1px solid rgba(17, 35, 61, 0.08);
  background: rgba(255, 255, 255, 0.8);
}

.page-solutions .solution-panel figure {
  position: relative;
}

.page-solutions .solution-panel figure::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 40%;
  background: linear-gradient(180deg, transparent, rgba(8, 17, 30, 0.12));
}

.page-solutions .solution-content {
  padding: clamp(28px, 4vw, 42px);
}

.page-solutions .tag-list {
  margin: 16px 0 18px;
}

.page-solutions .diagram-card {
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 18px 40px rgba(17, 35, 61, 0.06);
}

@media (max-width: 1180px) {
  .operating-brief-grid {
    grid-template-columns: 1fr 1fr;
  }

  .brief-intro {
    grid-column: 1 / -1;
  }
}

@media (max-width: 980px) {
  .page-home .narrative-grid,
  .page-home .advisory-grid,
  .operating-brief-grid {
    grid-template-columns: 1fr;
  }

  .page-home .advisory-intro,
  .page-home .use-case-tabs {
    position: static;
  }

  .page-home .hero-stage {
    min-height: 0;
  }

  .page-home .hero-stage-visual {
    transform: none;
  }

  .page-home .hero-stage-visual img {
    min-height: 420px;
  }
}

@media (max-width: 700px) {
  .page-home .narrative-grid {
    padding-top: 86px;
    gap: 30px;
  }

  .page-home .hero-copy h1 {
    max-width: none;
    font-size: clamp(42px, 14vw, 58px);
  }

  .brief-intro,
  .brief-column,
  .page-home .story-card,
  .page-solutions .solution-panel {
    border-radius: 24px;
  }

  .page-home .chapter-nav a,
  .page-solutions .chapter-nav-page a {
    width: 100%;
    text-align: center;
  }
}

/* === EUROPEAN B2B INDUSTRIAL TECH REDESIGN === */
:root {
  --navy: #07111f;
  --navy-2: #0b1f35;
  --ink: #111827;
  --muted: #637183;
  --line: #d7e0e8;
  --soft: #f2f5f7;
  --soft-2: #e7edf2;
  --white: #ffffff;
  --cyan: #1687b8;
  --green: #21a67d;
  --steel: #7b8b9c;
  --graphite: #101820;
  --electric: #36d4b0;
  --radius: 6px;
  --radius-lg: 10px;
  --shadow: 0 26px 70px rgba(7, 17, 31, 0.12);
  --story-ink: #111827;
  --story-deep: #07111f;
  --story-petrol: #0f2b46;
  --story-mist: #f2f5f7;
  --story-sand: #e7edf2;
  --story-line: #d7e0e8;
  --story-accent: #21a67d;
  --story-accent-2: #1687b8;
  --story-serif: "Aptos Display", "Avenir Next", "Segoe UI", Arial, sans-serif;
}

body,
body.page-home,
body.page-solutions,
body.page-about,
body.page-contact {
  color: var(--ink);
  font-family: "Helvetica Neue", "Arial Nova", Arial, sans-serif;
  background:
    radial-gradient(circle at 8% -8%, rgba(22, 135, 184, 0.12), transparent 26rem),
    radial-gradient(circle at 92% 10%, rgba(33, 166, 125, 0.08), transparent 28rem),
    linear-gradient(180deg, #f7f9fb 0%, #eef3f6 48%, #f8fafb 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.42;
  background-image:
    linear-gradient(rgba(7, 17, 31, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(7, 17, 31, 0.04) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(180deg, #000 0%, rgba(0, 0, 0, 0.36) 42%, transparent 100%);
}

h1,
h2,
h3,
h4,
.page-home h1,
.page-home h2,
.page-home h3,
.page-solutions h1,
.page-solutions h2,
.page-solutions h3,
.page-about h1,
.page-about h2,
.page-contact h1,
.page-contact h2 {
  font-family: "Arial Nova Cond", "Helvetica Neue", Arial, sans-serif;
  color: var(--graphite);
  letter-spacing: -0.035em;
  text-wrap: balance;
}

h1 {
  font-size: clamp(42px, 5.3vw, 74px);
  line-height: 0.98;
}

h2 {
  font-size: clamp(30px, 3.7vw, 54px);
  line-height: 1;
}

h3 {
  font-size: clamp(20px, 1.8vw, 26px);
}

p {
  text-wrap: pretty;
}

.container {
  width: min(1240px, calc(100% - 40px));
}

.container-wide {
  width: min(1380px, calc(100% - 48px));
}

.site-header {
  border-bottom: 1px solid rgba(215, 224, 232, 0.68);
  background: rgba(247, 249, 251, 0.86);
  backdrop-filter: blur(18px) saturate(1.15);
}

.site-header.is-scrolled {
  background: rgba(247, 249, 251, 0.94);
  box-shadow: 0 16px 38px rgba(7, 17, 31, 0.08);
}

.nav-wrap {
  min-height: 72px;
}

.brand-logo {
  width: min(264px, 54vw);
  height: 58px;
}

.nav-links {
  gap: 22px;
  color: #243447;
  font-size: 13px;
  letter-spacing: 0;
}

.nav-links a::after {
  bottom: 6px;
  height: 2px;
  background: var(--electric);
}

.nav-links a:hover,
.nav-links a.active,
.page-home .nav-links a:hover,
.page-home .nav-links a.active,
.page-solutions .nav-links a:hover,
.page-solutions .nav-links a.active,
.page-about .nav-links a:hover,
.page-about .nav-links a.active,
.page-contact .nav-links a:hover,
.page-contact .nav-links a.active {
  color: #07111f;
}

.header-cta,
.page-home .header-cta,
.page-solutions .header-cta,
.page-about .header-cta,
.page-contact .header-cta {
  padding: 11px 16px;
  border-radius: 4px;
  color: #ffffff;
  background: #0e7d72;
  box-shadow: none;
}

.btn,
.filter-btn,
.use-case-tab {
  min-height: 48px;
  border-radius: 4px;
  letter-spacing: 0;
}

.btn {
  padding: 12px 20px;
}

.btn-primary,
.page-home .btn-primary,
.page-solutions .btn-primary,
.page-about .btn-primary,
.page-contact .btn-primary {
  color: #ffffff;
  background: #0e7d72;
  box-shadow: none;
}

.btn-secondary,
.page-home .btn-secondary,
.page-solutions .btn-secondary {
  color: #eaf8f5;
  border-color: rgba(234, 248, 245, 0.34);
  background: rgba(234, 248, 245, 0.08);
}

.btn-outline,
.page-home .btn-outline,
.page-solutions .btn-outline {
  color: #0b1f35;
  border-color: rgba(11, 31, 53, 0.18);
  background: rgba(255, 255, 255, 0.76);
}

.btn:hover,
.filter-btn:hover,
.product-card:hover,
.page-home .btn:hover,
.page-solutions .btn:hover,
.page-about .btn:hover,
.page-contact .btn:hover {
  transform: translateY(-2px);
}

.btn:active,
.filter-btn:active,
.use-case-tab:active {
  transform: translateY(0) scale(0.99);
}

.hero,
.page-hero,
.section.dark,
.page-home .hero,
.page-solutions .page-hero,
.page-about .page-hero,
.page-contact .page-hero,
.page-home .section.dark {
  color: #f4f8fb;
  background:
    radial-gradient(circle at 18% 10%, rgba(54, 212, 176, 0.15), transparent 22rem),
    radial-gradient(circle at 78% 16%, rgba(22, 135, 184, 0.25), transparent 30rem),
    linear-gradient(135deg, #07111f 0%, #0a1b2e 56%, #101820 100%);
}

.hero::before,
.page-hero::before,
.section.dark::before,
.page-home .hero::before,
.page-solutions .page-hero::before,
.page-about .page-hero::before,
.page-contact .page-hero::before,
.page-home .section.dark::before {
  opacity: 0.18;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
  background-size: 48px 48px;
}

.hero::after,
.page-hero::after,
.section.dark::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 36%;
  pointer-events: none;
  background: linear-gradient(180deg, transparent, rgba(3, 8, 15, 0.34));
}

.hero > *,
.page-hero > *,
.section.dark > * {
  z-index: 1;
}

.hero h1,
.hero h2,
.page-hero h1,
.page-hero h2,
.section.dark h2,
.section.dark h3,
.page-home .hero h1,
.page-home .hero h2,
.page-solutions .page-hero h1,
.page-solutions .page-hero h2,
.page-about .page-hero h1,
.page-about .page-hero h2,
.page-contact .page-hero h1,
.page-contact .page-hero h2,
.page-home .section.dark h2,
.page-home .section.dark h3 {
  color: #ffffff;
}

.page-home .narrative-grid {
  grid-template-columns: minmax(0, 1.08fr) minmax(420px, 0.92fr);
  gap: clamp(38px, 5vw, 74px);
  padding: clamp(82px, 10vw, 126px) 0 58px;
}

.page-home .hero-copy {
  align-content: center;
  gap: 22px;
}

.page-home .hero-copy h1 {
  max-width: 13.8ch;
  font-size: clamp(52px, 6.7vw, 94px);
  line-height: 0.94;
  letter-spacing: -0.055em;
}

.page-home .hero-copy p {
  max-width: 58ch;
  color: rgba(232, 241, 248, 0.82);
  font-size: clamp(17px, 1.4vw, 20px);
}

.eyebrow {
  margin-bottom: 12px;
  color: var(--electric);
  font-size: 11px;
  letter-spacing: 0.16em;
}

.page-home .hero-stage {
  min-height: 610px;
}

.page-home .hero-stage-visual {
  border-radius: 8px;
  border-color: rgba(255, 255, 255, 0.16);
  transform: none;
  box-shadow: 0 40px 90px rgba(0, 0, 0, 0.34);
}

.page-home .hero-stage-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(7, 17, 31, 0.16), transparent 38%),
    linear-gradient(180deg, transparent 48%, rgba(7, 17, 31, 0.24));
}

.page-home .hero-stage-visual img {
  min-height: 610px;
  filter: saturate(0.82) contrast(1.12);
}

.hero-stage-panel {
  border-radius: 6px;
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(7, 17, 31, 0.78);
  box-shadow: 0 22px 52px rgba(0, 0, 0, 0.28);
}

.panel-top {
  left: -24px;
}

.panel-bottom {
  right: -20px;
}

.hero-signal-grid {
  gap: 12px;
}

.signal-card {
  border-radius: 6px;
  border-color: rgba(255, 255, 255, 0.14);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.035));
}

.signal-label,
.panel-kicker,
.trust-title,
.brief-label,
.advisory-note-label {
  color: #36d4b0;
  letter-spacing: 0.15em;
}

.chapter-nav {
  padding-bottom: 26px;
}

.chapter-nav a,
.page-home .chapter-nav a,
.page-solutions .chapter-nav-page a {
  border-radius: 4px;
  border-color: rgba(255, 255, 255, 0.16);
  color: rgba(238, 247, 252, 0.82);
  background: rgba(255, 255, 255, 0.055);
}

.chapter-nav a:hover,
.page-home .chapter-nav a:hover,
.page-home .chapter-nav a.is-active,
.page-solutions .chapter-nav-page a:hover,
.page-solutions .chapter-nav-page a.is-active {
  color: #07111f;
  border-color: transparent;
  background: #36d4b0;
}

.section {
  padding: clamp(78px, 8vw, 118px) 0;
}

.section.alt {
  background:
    linear-gradient(180deg, rgba(7, 17, 31, 0.035), rgba(7, 17, 31, 0.015)),
    #eef3f6;
}

.section-head {
  margin-bottom: 38px;
}

.section-head p,
.narrative-head p {
  color: #536173;
  font-size: 17px;
}

.section-operating-brief,
.page-home .section-credibility {
  padding-top: 52px;
}

.operating-brief-grid {
  gap: 14px;
}

.brief-intro,
.brief-column,
.credibility-metric,
.trust-module,
.advisory-note,
.advisory-card,
.use-case-panel,
.flow-step,
.ecosystem-card,
.product-card,
.card,
.diagram-card,
.application-card,
.capability-card,
.story-card,
.consultation-item,
.faq-list details {
  border-radius: var(--radius-lg);
  border-color: rgba(7, 17, 31, 0.1);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 18px 46px rgba(7, 17, 31, 0.07);
}

.brief-intro,
.brief-column,
.advisory-note {
  background:
    linear-gradient(145deg, rgba(22, 135, 184, 0.07), transparent 46%),
    rgba(255, 255, 255, 0.82);
}

.credibility-grid {
  gap: 12px;
}

.metric-value {
  font-family: "Aptos Display", "Avenir Next", "Segoe UI", Arial, sans-serif;
  color: #07111f;
  font-variant-numeric: tabular-nums;
}

.trust-rail {
  gap: 14px;
}

.page-home .advisory-grid {
  gap: 46px;
}

.page-home .advisory-card {
  position: relative;
  overflow: hidden;
  min-height: 210px;
}

.page-home .advisory-card::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 3px;
  background: linear-gradient(90deg, #36d4b0, #1687b8);
}

.advisory-number {
  width: 44px;
  height: 44px;
  border-radius: 4px;
  color: #07111f;
  background: #d8f6ef;
  font-variant-numeric: tabular-nums;
}

.page-home .use-case-tabs {
  border-radius: 6px;
  background: rgba(247, 249, 251, 0.9);
}

.use-case-tab {
  border-color: rgba(7, 17, 31, 0.12);
  color: #1d2c3f;
}

.use-case-tab.active,
.use-case-tab:hover {
  color: #ffffff;
  background: linear-gradient(135deg, #07111f, #0f4667);
}

.use-case-panel {
  overflow: hidden;
}

.use-case-panel figure {
  min-height: 460px;
  background: #0c1828;
}

.use-case-panel img,
.solution-panel img,
.application-card img {
  filter: saturate(0.9) contrast(1.08);
}

.flow-rail::before {
  background: linear-gradient(#1687b8, #36d4b0);
}

.line-icon {
  border-radius: 6px;
  color: #0f6f92;
  background: #dff2f7;
}

.product-ecosystem-grid {
  gap: 16px;
}

.ecosystem-overview-visual,
.product-media,
.ecosystem-media,
.image-tile,
.detail-hero-media {
  border-radius: var(--radius-lg);
  background:
    linear-gradient(145deg, rgba(7, 17, 31, 0.06), rgba(255, 255, 255, 0.68)),
    #eef3f6;
}

.ecosystem-card,
.product-card,
.application-card,
.solution-panel,
.diagram-card {
  transition: transform 0.24s ease, box-shadow 0.24s ease, border-color 0.24s ease;
}

.ecosystem-card:hover,
.product-card:hover,
.application-card:hover,
.solution-panel:hover,
.diagram-card:hover {
  border-color: rgba(22, 135, 184, 0.34);
  box-shadow: 0 24px 58px rgba(7, 17, 31, 0.12);
}

.tag {
  border-radius: 4px;
  color: #173047;
  background: #e3ebf1;
}

.tag.green {
  color: #075d48;
  background: #d9f4ed;
}

.clean-list li {
  color: #536173;
}

.clean-list li::before {
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--green);
}

.section.dark .story-card,
.page-home .story-card {
  color: #edf6f8;
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.065);
  box-shadow: none;
}

.story-card h3,
.story-card p,
.section.dark p {
  color: rgba(237, 246, 248, 0.78);
}

.story-card h3,
.section.dark .story-card h3 {
  color: #ffffff;
}

.diagram-card {
  background: rgba(255, 255, 255, 0.9);
}

.page-home .consultation-band,
.page-solutions .consultation-band,
.cta-band,
.cta-band-visual {
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background:
    linear-gradient(90deg, rgba(7, 17, 31, 0.95), rgba(7, 17, 31, 0.74)),
    url("../visual-pack/rfq/rfq_technical_quote_banner_1600x520.jpg") center / cover no-repeat;
  box-shadow: 0 30px 70px rgba(7, 17, 31, 0.2);
}

.consultation-copy h2,
.consultation-copy p {
  color: #ffffff;
}

.consultation-copy p,
.consultation-item span {
  color: rgba(237, 246, 248, 0.78);
}

.consultation-item {
  border-color: rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: none;
}

.filter-btn.active {
  border-color: #07111f;
  background: #07111f;
}

label {
  color: #18283a;
}

input,
select,
textarea {
  border-radius: 4px;
  border-color: rgba(7, 17, 31, 0.16);
  background: rgba(255, 255, 255, 0.9);
}

input:focus,
select:focus,
textarea:focus {
  outline: 3px solid rgba(54, 212, 176, 0.22);
  border-color: #1687b8;
}

.site-footer {
  color: #b9c7d4;
  background:
    radial-gradient(circle at 12% 0%, rgba(54, 212, 176, 0.1), transparent 22rem),
    linear-gradient(135deg, #07111f, #0a1728);
}

.site-footer h3,
.site-footer strong {
  color: #ffffff;
}

.footer-bottom {
  border-top-color: rgba(255, 255, 255, 0.12);
}

@media (max-width: 1180px) {
  .page-home .narrative-grid {
    grid-template-columns: 1fr;
  }

  .page-home .hero-copy h1 {
    max-width: 14ch;
  }
}

@media (max-width: 980px) {
  .nav-links {
    border-bottom-color: rgba(215, 224, 232, 0.9);
    background: rgba(247, 249, 251, 0.98);
  }

  .page-home .hero-stage,
  .page-home .hero-stage-visual img {
    min-height: 430px;
  }

  .page-home .hero-stage-panel {
    position: static;
    max-width: none;
    margin-top: 12px;
  }

  .use-case-panel figure {
    min-height: 320px;
  }
}

@media (max-width: 700px) {
  .container,
  .container-wide {
    width: min(100% - 24px, 1380px);
  }

  .brand-logo {
    width: min(208px, 56vw);
    height: 48px;
  }

  .page-home .narrative-grid {
    padding-top: 72px;
  }

  .page-home .hero-copy h1 {
    max-width: none;
    font-size: clamp(40px, 12.8vw, 56px);
    line-height: 0.98;
  }

  .hero-actions,
  .consultation-checklist .btn-row,
  .form-actions {
    width: 100%;
  }

  .hero-actions .btn,
  .consultation-checklist .btn-row .btn,
  .form-actions .btn {
    width: 100%;
  }

  .page-home .hero-stage,
  .page-home .hero-stage-visual img {
    min-height: 260px;
  }

  .section {
    padding: 64px 0;
  }

  .use-case-panel figure {
    min-height: 230px;
  }
}

/* Hero conversion correction: wide message, clean product visual, no embedded legacy artwork. */
.page-home .narrative-grid {
  grid-template-columns: 1fr;
  gap: 34px;
  padding: clamp(78px, 9vw, 116px) 0 44px;
}

.page-home .hero-copy {
  max-width: 1120px;
}

.page-home .hero-copy h1 {
  max-width: 1060px;
  font-size: clamp(44px, 4.4vw, 58px);
  line-height: 1.03;
}

.page-home .hero-copy p {
  max-width: 720px;
}

.page-home .hero-actions {
  margin-top: 4px;
}

.page-home .hero-signal-grid {
  max-width: 920px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 10px;
}

.page-home .hero-stage {
  min-height: 390px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: stretch;
}

.page-home .hero-stage::before {
  content: "";
  position: absolute;
  left: 4%;
  right: 4%;
  top: 16%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(54, 212, 176, 0.5), transparent);
}

.page-home .hero-stage-visual {
  display: grid;
  place-items: center;
  height: 390px;
  padding: 26px;
  background:
    radial-gradient(circle at 52% 24%, rgba(54, 212, 176, 0.16), transparent 24rem),
    linear-gradient(135deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.04));
}

.page-home .hero-stage-visual img {
  width: min(620px, 74%);
  height: 100%;
  min-height: 0;
  object-fit: contain;
  mix-blend-mode: screen;
  filter: saturate(0.84) contrast(1.16) drop-shadow(0 30px 42px rgba(0, 0, 0, 0.38));
}

.page-home .hero-stage-visual::after {
  background:
    linear-gradient(90deg, rgba(7, 17, 31, 0.22), transparent 28%, transparent 72%, rgba(7, 17, 31, 0.22)),
    linear-gradient(180deg, transparent 46%, rgba(7, 17, 31, 0.22));
}

.page-home .hero-stage-panel {
  max-width: 340px;
}

.page-home .panel-top {
  left: 28px;
  top: 28px;
}

.page-home .panel-bottom {
  right: 28px;
  bottom: 28px;
}

@media (max-width: 980px) {
  .page-home .hero-copy h1 {
    max-width: 900px;
    font-size: clamp(40px, 7vw, 56px);
  }

  .page-home .hero-stage,
  .page-home .hero-stage-visual {
    min-height: 340px;
    height: auto;
  }

  .page-home .hero-stage-visual img {
    width: min(560px, 86%);
    height: 300px;
  }

  .page-home .hero-stage-panel {
    position: static;
    max-width: none;
    margin-top: 12px;
  }
}

@media (max-width: 700px) {
  .page-home .hero-copy h1 {
    font-size: clamp(36px, 10vw, 46px);
  }

  .page-home .hero-signal-grid {
    grid-template-columns: 1fr;
  }

  .page-home .hero-stage,
  .page-home .hero-stage-visual {
    min-height: 240px;
  }

  .page-home .hero-stage-visual {
    padding: 18px;
  }

  .page-home .hero-stage-visual img {
    width: 94%;
    height: 220px;
  }
}

/* === HOMEPAGE RFQ RESTRUCTURE PASS === */
.hero-industrial {
  min-height: auto;
  padding: 0;
}

.industrial-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.16fr) minmax(360px, 0.84fr);
  gap: clamp(34px, 5vw, 72px);
  align-items: center;
  min-height: calc(100dvh - 112px);
  padding: clamp(42px, 6vw, 72px) 0 24px;
}

.industrial-hero-copy {
  display: grid;
  gap: 20px;
  max-width: 900px;
}

.hero-kicker {
  color: rgba(180, 206, 218, 0.88);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.industrial-hero-copy h1 {
  max-width: 900px;
  color: #ffffff;
  font-size: clamp(46px, 5vw, 68px);
  font-weight: 760;
  line-height: 0.96;
  letter-spacing: -0.045em;
}

.industrial-hero-copy p {
  max-width: 600px;
  margin: 0;
  color: rgba(234, 244, 250, 0.82);
  font-size: clamp(17px, 1.35vw, 19px);
}

.industrial-proof-section {
  padding: 0 0 30px;
  background: #07111f;
}

.industrial-proof-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
}

.industrial-proof-strip span {
  padding: 14px 16px;
  color: rgba(245, 250, 252, 0.9);
  background: rgba(255, 255, 255, 0.045);
  font-size: 13px;
  font-weight: 800;
}

.industrial-hero-system {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  align-content: start;
  gap: 1px;
  min-height: auto;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 0;
  background:
    radial-gradient(circle at 52% 30%, rgba(54, 212, 176, 0.08), transparent 18rem),
    #0a1523;
  box-shadow: none;
}

.industrial-hero-system::before {
  content: "";
  position: absolute;
  inset: 16px;
  pointer-events: none;
  opacity: 0.16;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.12) 1px, transparent 1px);
  background-size: 38px 38px;
}

.spec-board {
  align-self: center;
}

.spec-board-header,
.spec-board-row,
.spec-board-footer {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 8px;
  padding: 24px 26px;
  border: 0;
  border-radius: 0;
  background: rgba(255, 255, 255, 0.035);
  backdrop-filter: none;
}

.spec-board-header {
  min-height: 160px;
  align-content: end;
  background:
    linear-gradient(135deg, rgba(54, 212, 176, 0.11), rgba(22, 135, 184, 0.04)),
    rgba(255, 255, 255, 0.045);
}

.spec-board-header span,
.spec-board-row span {
  color: rgba(180, 206, 218, 0.86);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.spec-board-header strong {
  max-width: 440px;
  color: #ffffff;
  font-size: clamp(30px, 3.2vw, 42px);
  line-height: 1;
  letter-spacing: -0.035em;
}

.spec-board-row {
  grid-template-columns: 112px minmax(0, 1fr);
  align-items: baseline;
  min-height: 74px;
}

.spec-board-row strong {
  color: rgba(246, 251, 252, 0.92);
  font-size: 16px;
  line-height: 1.35;
}

.spec-board-footer p {
  max-width: 52ch;
  margin: 0;
  color: rgba(234, 244, 250, 0.68);
  font-size: 14px;
}

.industrial-nav {
  padding-bottom: 30px;
}

.rfq-path-section {
  position: relative;
  z-index: 3;
  margin-top: -1px;
  padding: 0 0 44px;
  background: #07111f;
}

.rfq-path-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.13);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.2);
}

.rfq-path-card {
  display: grid;
  align-content: start;
  gap: 10px;
  min-height: 188px;
  padding: 22px;
  color: #eaf6f8;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.035)),
    #0a1728;
  transition: transform 0.22s ease, background 0.22s ease;
}

.rfq-path-card:hover {
  transform: translateY(-2px);
  background:
    linear-gradient(145deg, rgba(54, 212, 176, 0.16), rgba(22, 135, 184, 0.08)),
    #0a1728;
}

.rfq-path-card span {
  color: #36d4b0;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.14em;
}

.rfq-path-card strong {
  color: #ffffff;
  font-size: 18px;
  line-height: 1.15;
}

.rfq-path-card p {
  margin: 0;
  color: rgba(234, 246, 248, 0.72);
  font-size: 14px;
}

.rfq-path-card.featured {
  background:
    linear-gradient(145deg, rgba(54, 212, 176, 0.22), rgba(22, 135, 184, 0.12)),
    #0d2238;
}

.capability-section {
  background:
    radial-gradient(circle at 88% 18%, rgba(22, 135, 184, 0.08), transparent 20rem),
    linear-gradient(180deg, #f8fafb, #eef3f6);
}

.capability-matrix {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid rgba(7, 17, 31, 0.1);
  border-radius: 8px;
  background: rgba(7, 17, 31, 0.1);
  overflow: hidden;
}

.capability-line {
  display: grid;
  align-content: start;
  gap: 12px;
  min-height: 290px;
  padding: 28px;
  background: rgba(255, 255, 255, 0.84);
}

.capability-line span,
.buyer-path-card span {
  color: #1687b8;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.capability-line h3,
.buyer-path-card h3 {
  margin: 0;
  color: #07111f;
  font-size: clamp(22px, 2vw, 30px);
  line-height: 1.05;
}

.capability-line p,
.buyer-path-card p {
  margin: 0;
  color: #536173;
}

.buyer-section {
  overflow: hidden;
}

.buyer-path-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.buyer-path-card {
  display: grid;
  grid-template-rows: 220px 1fr;
  overflow: hidden;
  border: 1px solid rgba(7, 17, 31, 0.1);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 18px 46px rgba(7, 17, 31, 0.07);
}

.buyer-path-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.86) contrast(1.08);
  transition: transform 0.3s ease;
}

.buyer-path-card:hover img {
  transform: scale(1.035);
}

.buyer-path-card div {
  display: grid;
  align-content: start;
  gap: 12px;
  padding: 24px;
}

.buyer-path-card a {
  align-self: end;
  margin-top: 8px;
  color: #0b6f92;
  font-weight: 900;
}

.process-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
  gap: 44px;
  align-items: start;
}

.process-copy {
  position: sticky;
  top: 98px;
  display: grid;
  gap: 18px;
}

.process-copy p {
  color: #536173;
}

.process-copy .btn {
  justify-self: start;
}

.process-table {
  display: grid;
  gap: 1px;
  overflow: hidden;
  border: 1px solid rgba(7, 17, 31, 0.1);
  border-radius: 8px;
  background: rgba(7, 17, 31, 0.1);
}

.process-table article {
  display: grid;
  grid-template-columns: 64px minmax(160px, 0.42fr) minmax(0, 1fr);
  gap: 18px;
  align-items: baseline;
  padding: 22px;
  background: rgba(255, 255, 255, 0.84);
}

.process-table span {
  color: #1687b8;
  font-weight: 900;
  font-variant-numeric: tabular-nums;
}

.process-table strong {
  color: #07111f;
  font-size: 18px;
}

.process-table p {
  margin: 0;
  color: #536173;
}

.industrial-diagram-grid .diagram-card {
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(233, 241, 246, 0.92));
}

.page-home .section-ecosystem .section-head p,
.page-home .section-products .section-head p {
  max-width: 58ch;
}

@media (max-width: 1180px) {
  .industrial-hero-grid,
  .process-grid {
    grid-template-columns: 1fr;
  }

  .industrial-hero-copy {
    max-width: 980px;
  }

  .industrial-hero-copy h1 {
    max-width: 980px;
  }

  .industrial-hero-system {
    max-width: 760px;
  }

  .rfq-path-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .capability-matrix,
  .buyer-path-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .process-copy {
    position: static;
  }
}

@media (max-width: 760px) {
  .industrial-hero-grid {
    padding-top: 64px;
  }

  .industrial-hero-copy h1 {
    font-size: clamp(40px, 11vw, 50px);
    line-height: 1;
  }

  .industrial-proof-strip,
  .rfq-path-grid,
  .capability-matrix,
  .buyer-path-grid {
    grid-template-columns: 1fr;
  }

  .industrial-hero-system {
    min-height: 0;
  }

  .spec-board-header {
    min-height: 120px;
  }

  .spec-board-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .spec-board-header,
  .spec-board-row,
  .spec-board-footer {
    padding: 20px;
  }

  .rfq-path-card,
  .capability-line {
    min-height: auto;
  }

  .buyer-path-card {
    grid-template-rows: 210px 1fr;
  }

  .process-table article {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}