/* Clean Chinese corporate site redesign */
:root {
  --bg: #f6f8fb;
  --surface: #ffffff;
  --surface-soft: #eef4f9;
  --ink: #172033;
  --muted: #5c6a7f;
  --line: #dce5ee;
  --blue: #1f66d1;
  --blue-dark: #164fa8;
  --green: #12806f;
  --amber: #b7791f;
  --radius: 8px;
  --shadow: 0 14px 34px rgba(30, 58, 92, 0.08);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

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

p,
h1,
h2,
h3,
h4 {
  margin: 0;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.nav {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.brand img {
  height: 34px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 15px;
  color: #405168;
  white-space: nowrap;
}

.nav-links a {
  padding: 8px 0;
  border-bottom: 2px solid transparent;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  font-size: 15px;
  font-weight: 700;
  white-space: nowrap;
  transition: 0.18s ease;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

.btn.primary {
  color: #fff;
  background: var(--blue);
  border-color: var(--blue);
}

.btn.primary:hover {
  background: var(--blue-dark);
}

.btn.ghost {
  color: var(--blue);
  border-color: #bfd1ea;
}

.hero {
  position: relative;
  min-height: 620px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: #edf4fb;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(246, 248, 251, 0.98) 0%, rgba(246, 248, 251, 0.9) 46%, rgba(246, 248, 251, 0.38) 100%),
    var(--hero-image, url("resources/company-slide21-img83.webp")) right center / cover no-repeat;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-copy {
  max-width: 680px;
  padding: 84px 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 3px 10px;
  border: 1px solid #c9d8e9;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
}

h1,
.page-title {
  max-width: 760px;
  margin-top: 18px;
  color: var(--ink);
  font-size: clamp(34px, 5vw, 52px);
  line-height: 1.18;
  font-weight: 780;
  letter-spacing: 0;
  text-wrap: balance;
}

.hero-text,
.page-lede {
  max-width: 620px;
  margin-top: 22px;
  color: var(--muted);
  font-size: clamp(16px, 1.7vw, 18px);
  line-height: 1.86;
}

.hero-actions,
.section-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

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

.metric {
  padding: 26px 24px;
  background: var(--surface);
}

.metric strong {
  display: block;
  color: var(--blue);
  font-size: 28px;
  line-height: 1.1;
}

.metric span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 14px;
}

.section {
  padding: clamp(66px, 8vw, 96px) 0;
}

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

.section.white {
  background: var(--surface);
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.55fr);
  gap: 40px;
  align-items: end;
  margin-bottom: 34px;
}

.section-title {
  margin-top: 12px;
  font-size: clamp(28px, 3.6vw, 42px);
  line-height: 1.22;
  font-weight: 760;
  letter-spacing: 0;
  text-wrap: balance;
}

.section-desc {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.86;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

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

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

.card {
  min-width: 0;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.65) inset;
}

.card:hover {
  box-shadow: var(--shadow);
}

.card-label {
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
}

.card h3 {
  margin-top: 10px;
  font-size: 22px;
  line-height: 1.35;
  font-weight: 750;
}

.card p {
  margin-top: 12px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.82;
}

.card ul {
  display: grid;
  gap: 9px;
  margin-top: 14px;
  color: var(--muted);
  font-size: 15px;
}

.card li {
  position: relative;
  padding-left: 16px;
}

.card li::before {
  content: "";
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--blue);
}

.feature-row {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 36px;
  align-items: center;
}

.feature-media {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.feature-media img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}

.process {
  counter-reset: step;
  display: grid;
  gap: 14px;
}

.process .card {
  counter-increment: step;
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 18px;
  align-items: start;
}

.process .card::before {
  content: counter(step, decimal-leading-zero);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  background: #e8f1ff;
  color: var(--blue);
  font-weight: 800;
}

.case-list {
  display: grid;
  gap: 18px;
}

.case-item {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 24px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.case-item img {
  width: 100%;
  height: 170px;
  object-fit: cover;
  border-radius: 6px;
}

.case-item h3 {
  margin-top: 7px;
  font-size: 23px;
  line-height: 1.35;
}

.case-item p {
  margin-top: 10px;
  color: var(--muted);
}

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

.tag {
  display: inline-flex;
  padding: 4px 9px;
  border: 1px solid #cbd9e8;
  border-radius: 999px;
  color: #48627e;
  background: #f8fbff;
  font-size: 13px;
}

.quote-band {
  padding: clamp(54px, 7vw, 78px) 0;
  background: #163a67;
  color: #fff;
}

.quote-band h2 {
  max-width: 760px;
  font-size: clamp(27px, 3.5vw, 40px);
  line-height: 1.25;
}

.quote-band p {
  max-width: 680px;
  margin-top: 16px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 17px;
}

.site-footer {
  padding: 42px 0 34px;
  background: #111827;
  color: #b8c3d1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 40px;
  align-items: start;
}

.footer-grid h3 {
  color: #fff;
  font-size: 20px;
}

.footer-grid p,
.footer-grid a {
  color: #b8c3d1;
  font-size: 14px;
}

.footer-links {
  display: grid;
  gap: 8px;
}

.copyright {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #758196;
  font-size: 13px;
}

.page-hero {
  padding: 92px 0 56px;
  background: #edf4fb;
}

.page-hero .container {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.7fr);
  gap: 46px;
  align-items: center;
}

.page-hero img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}

.tabs a,
.tabs button {
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: #405168;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.tabs a.active,
.tabs button.active {
  color: #fff;
  background: var(--blue);
  border-color: var(--blue);
}

.timeline {
  display: grid;
  gap: 14px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 22px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.timeline-item strong {
  color: var(--blue);
}

.two-column-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

@media (max-width: 980px) {
  .nav {
    height: auto;
    min-height: 72px;
    flex-wrap: wrap;
    padding: 14px 0;
  }

  .nav-links {
    order: 3;
    width: 100%;
    gap: 14px;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .section-head,
  .feature-row,
  .page-hero .container,
  .footer-grid {
    grid-template-columns: 1fr;
  }

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

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

  .hero {
    min-height: auto;
  }

  .hero::before {
    background:
      linear-gradient(180deg, rgba(246, 248, 251, 0.97), rgba(246, 248, 251, 0.92)),
      var(--hero-image, url("resources/company-slide21-img83.webp")) center / cover no-repeat;
  }

  .case-item {
    grid-template-columns: 1fr;
  }

  .case-item img {
    height: 230px;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 28px, 1120px);
  }

  .brand img {
    height: 30px;
  }

  .nav-actions {
    margin-left: auto;
  }

  .nav-actions .btn.primary {
    display: none;
  }

  .hero-copy {
    padding: 58px 0;
  }

  h1,
  .page-title {
    font-size: clamp(30px, 9vw, 38px);
    line-height: 1.24;
  }

  .section-title {
    font-size: clamp(25px, 7.2vw, 32px);
  }

  .hero-text,
  .page-lede,
  .section-desc {
    font-size: 16px;
    line-height: 1.82;
  }

  .grid-2,
  .grid-3,
  .grid-4,
  .two-column-list,
  .metrics {
    grid-template-columns: 1fr;
  }

  .card {
    padding: 22px;
  }

  .process .card {
    grid-template-columns: 1fr;
  }

  .feature-media img,
  .page-hero img,
  .case-item img {
    height: 210px;
  }

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

/* Homepage v2: refined enterprise AI landing page */
.home-page {
  background:
    linear-gradient(180deg, #f8fbff 0%, #ffffff 34%, #f3f7fb 100%);
}

.home-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(86px, 11vw, 132px) 0 clamp(82px, 10vw, 124px);
  background:
    linear-gradient(115deg, rgba(255,255,255,0.96) 0%, rgba(247,251,255,0.95) 48%, rgba(234,244,250,0.88) 100%),
    radial-gradient(circle at 86% 18%, rgba(31,102,209,0.14), transparent 34%),
    radial-gradient(circle at 70% 80%, rgba(18,128,111,0.12), transparent 32%);
}

.home-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(31,102,209,0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31,102,209,0.045) 1px, transparent 1px);
  background-size: 84px 84px;
  mask-image: linear-gradient(90deg, transparent, #000 42%, #000 100%);
}

.home-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(440px, 1fr);
  gap: clamp(44px, 7vw, 86px);
  align-items: center;
}

.home-page .hero-copy {
  max-width: 660px;
  padding: 0;
}

.home-page h1 {
  max-width: 620px;
  font-size: clamp(38px, 4.5vw, 56px);
  line-height: 1.18;
}

.home-page .hero-text {
  max-width: 600px;
  line-height: 1.95;
}

.hero-visual {
  position: relative;
  min-height: 420px;
}

.visual-orbit {
  position: absolute;
  inset: 18px 10px 0 24px;
  border: 1px solid rgba(31,102,209,0.14);
  border-radius: 8px;
  transform: skewY(-3deg);
}

.visual-orbit span {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 0 8px rgba(31,102,209,0.1);
  animation: pulse-dot 3s ease-in-out infinite;
}

.visual-orbit span:nth-child(1) { left: 16%; top: 18%; }
.visual-orbit span:nth-child(2) { right: 14%; top: 36%; animation-delay: .55s; }
.visual-orbit span:nth-child(3) { left: 42%; bottom: 16%; animation-delay: 1.1s; }

.workflow-card {
  position: absolute;
  border: 1px solid rgba(188,205,224,0.78);
  border-radius: 8px;
  background: rgba(255,255,255,0.86);
  box-shadow: 0 24px 60px rgba(34,74,112,0.12);
  backdrop-filter: blur(16px);
}

.workflow-card.main {
  inset: 48px 36px auto 0;
  min-height: 260px;
  padding: 24px;
  animation: float-panel 7s ease-in-out infinite;
}

.workflow-card.mini {
  width: 210px;
  padding: 18px;
  animation: float-panel 8s ease-in-out infinite;
}

.workflow-card.mini-a {
  right: 0;
  bottom: 54px;
}

.workflow-card.mini-b {
  left: 38px;
  bottom: 0;
  animation-delay: 1.1s;
}

.workflow-card small {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.workflow-card strong {
  display: block;
  margin-top: 6px;
  font-size: 20px;
}

.panel-top,
.flow-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.panel-top {
  color: #52647b;
  font-size: 14px;
  font-weight: 800;
}

.panel-top i {
  width: 42px;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--blue), var(--green));
}

.flow-row {
  margin-top: 48px;
}

.flow-row strong {
  min-width: 88px;
  padding: 14px 12px;
  border: 1px solid #cfe0ef;
  border-radius: 8px;
  background: #f8fbff;
  text-align: center;
  font-size: 16px;
}

.flow-row em {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(31,102,209,0.1), rgba(31,102,209,0.65));
}

.signal-bars {
  display: flex;
  align-items: end;
  gap: 12px;
  height: 72px;
  margin-top: 34px;
  padding: 0 8px;
}

.signal-bars span {
  flex: 1;
  height: var(--h);
  border-radius: 8px 8px 2px 2px;
  background: linear-gradient(180deg, rgba(31,102,209,0.86), rgba(18,128,111,0.32));
  opacity: 0.86;
}

.home-metrics .metric {
  padding-top: 30px;
  padding-bottom: 30px;
}

.home-section {
  padding: clamp(92px, 10vw, 138px) 0;
}

.section-head.compact {
  margin-bottom: clamp(40px, 5vw, 62px);
}

.section-head.centered {
  display: flex;
  max-width: 780px;
  margin: 0 auto clamp(42px, 5vw, 64px);
  text-align: center;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

.section-head.centered .section-desc {
  margin-top: 18px;
}

.direction-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
  gap: 24px;
}

.direction-card,
.step-card,
.industry-tile,
.advantage-card,
.featured-case,
.mini-case {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}

.spotlight::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  background: radial-gradient(360px circle at var(--mx, 50%) var(--my, 50%), rgba(31,102,209,0.14), transparent 42%);
  transition: opacity .28s ease;
}

.spotlight:hover {
  transform: translateY(-4px);
  border-color: #bdd2e9;
  box-shadow: 0 24px 54px rgba(30, 58, 92, 0.12);
}

.spotlight:hover::before {
  opacity: 1;
}

.direction-card {
  display: block;
  min-height: 330px;
  padding: clamp(30px, 4vw, 44px);
}

.direction-card.primary {
  background:
    linear-gradient(135deg, rgba(31,102,209,0.08), rgba(255,255,255,0.96) 42%),
    #fff;
}

.direction-card.proof {
  background:
    linear-gradient(135deg, rgba(18,128,111,0.08), rgba(255,255,255,0.98) 48%),
    #fff;
}

.direction-card h3 {
  margin-top: 16px;
  font-size: clamp(28px, 3vw, 38px);
  line-height: 1.22;
}

.direction-card p {
  max-width: 720px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.9;
}

.direction-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}

.direction-tags span {
  padding: 7px 11px;
  border: 1px solid #cbd9e8;
  border-radius: 999px;
  background: rgba(255,255,255,0.74);
  color: #405a76;
  font-size: 14px;
  font-weight: 700;
}

.necessity-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(420px, 1fr);
  gap: clamp(44px, 7vw, 86px);
  align-items: start;
}

.sticky-copy {
  position: sticky;
  top: 110px;
}

.necessity-steps {
  display: grid;
  gap: 16px;
}

.step-card {
  display: grid;
  grid-template-columns: 68px 1fr;
  column-gap: 18px;
  padding: 24px 26px;
  background: rgba(255,255,255,0.86);
}

.step-card span {
  grid-row: span 2;
  width: 48px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: #e8f1ff;
  color: var(--blue);
  font-weight: 850;
}

.step-card h3 {
  font-size: 22px;
  line-height: 1.32;
}

.step-card p {
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.8;
}

.diagnosis-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(460px, 1fr);
  gap: clamp(42px, 6vw, 76px);
  align-items: center;
}

.diagnosis-statement {
  padding: clamp(34px, 5vw, 52px);
  border-left: 4px solid var(--blue);
  background: linear-gradient(135deg, #f8fbff, #fff);
  box-shadow: 0 16px 46px rgba(30,58,92,0.07);
}

.diagnosis-statement h2 {
  margin-top: 16px;
  font-size: clamp(30px, 3.4vw, 42px);
  line-height: 1.25;
}

.diagnosis-statement p {
  margin-top: 18px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.9;
}

.diagnosis-map {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.diagnosis-node {
  min-height: 112px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.diagnosis-node.large {
  grid-column: span 2;
  min-height: 140px;
  background:
    linear-gradient(135deg, rgba(31,102,209,0.1), rgba(255,255,255,0.94)),
    #fff;
}

.diagnosis-node strong {
  display: block;
  font-size: 22px;
}

.diagnosis-node span {
  display: block;
  margin-top: 9px;
  color: var(--muted);
}

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

.industry-tile {
  min-height: 250px;
  padding: 30px;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.94), rgba(247,251,255,0.96)),
    #fff;
}

.industry-tile span {
  color: var(--blue);
  font-size: 14px;
  font-weight: 850;
}

.industry-tile h3 {
  margin-top: 34px;
  font-size: 28px;
  line-height: 1.24;
}

.industry-tile p {
  margin-top: 16px;
  color: var(--muted);
  line-height: 1.82;
}

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

.advantage-card {
  min-height: 300px;
  padding: 32px;
}

.advantage-card span {
  color: var(--green);
  font-size: 13px;
  font-weight: 850;
  text-transform: uppercase;
}

.advantage-card h3 {
  margin-top: 26px;
  font-size: 27px;
  line-height: 1.25;
}

.advantage-card p {
  margin-top: 16px;
  color: var(--muted);
  line-height: 1.86;
}

.landing-note {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 24px;
  padding: 22px 28px;
  border: 1px solid #cfddec;
  border-radius: 8px;
  background: #f8fbff;
}

.landing-note strong {
  color: var(--blue);
  white-space: nowrap;
}

.landing-note span {
  color: var(--muted);
}

.case-showcase {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(420px, 1fr);
  gap: 24px;
  align-items: stretch;
}

.featured-case {
  background: #fff;
}

.featured-case img {
  width: 100%;
  height: 310px;
  object-fit: cover;
}

.featured-case > div {
  padding: 28px;
}

.featured-case h3 {
  margin-top: 10px;
  font-size: 30px;
  line-height: 1.25;
}

.featured-case p {
  margin-top: 14px;
  color: var(--muted);
  line-height: 1.82;
}

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

.mini-case {
  min-height: 210px;
  padding: 26px;
  background: #fff;
}

.mini-case span {
  color: var(--blue);
  font-size: 13px;
  font-weight: 850;
}

.mini-case h3 {
  margin-top: 18px;
  font-size: 23px;
  line-height: 1.32;
}

.mini-case p {
  margin-top: 12px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.78;
}

.mini-case.proof {
  background: linear-gradient(135deg, rgba(18,128,111,0.09), rgba(255,255,255,0.96));
}

.motion-ready [data-animate] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s ease;
}

.motion-ready [data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes float-panel {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes pulse-dot {
  0%, 100% { opacity: .46; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.18); }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
  }

  .motion-ready [data-animate] {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 1060px) {
  .home-hero-grid,
  .necessity-layout,
  .diagnosis-layout,
  .case-showcase {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 380px;
  }

  .sticky-copy {
    position: static;
  }

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

@media (max-width: 720px) {
  .home-hero {
    padding: 64px 0 72px;
  }

  .home-hero-grid {
    gap: 38px;
  }

  .hero-visual {
    min-height: 330px;
  }

  .workflow-card.main {
    inset: 26px 0 auto 0;
    padding: 18px;
  }

  .workflow-card.mini {
    width: 170px;
  }

  .flow-row {
    margin-top: 32px;
    gap: 8px;
  }

  .flow-row strong {
    min-width: auto;
    padding: 11px 8px;
    font-size: 14px;
  }

  .direction-layout,
  .industry-grid,
  .advantage-grid,
  .case-stack,
  .diagnosis-map {
    grid-template-columns: 1fr;
  }

  .diagnosis-node.large {
    grid-column: auto;
  }

  .step-card {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .landing-note {
    align-items: flex-start;
    flex-direction: column;
  }

  .landing-note strong {
    white-space: normal;
  }
}

/* Homepage v3: match approved visual mockup */
.icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.home-page .site-header {
  box-shadow: 0 10px 30px rgba(20, 52, 92, 0.04);
}

.home-page .container {
  width: min(1500px, calc(100% - 72px));
}

.home-page .btn.primary {
  background: #1f66d1;
  box-shadow: 0 8px 18px rgba(31, 102, 209, 0.18);
}

.home-page .home-hero {
  min-height: auto;
  padding: clamp(72px, 9vw, 118px) 0 clamp(78px, 9vw, 116px);
  background:
    linear-gradient(108deg, rgba(255,255,255,0.98) 0%, rgba(247,251,255,0.96) 50%, rgba(235,244,255,0.92) 100%),
    radial-gradient(circle at 82% 22%, rgba(31,102,209,0.14), transparent 36%),
    radial-gradient(circle at 64% 88%, rgba(80,150,220,0.12), transparent 34%);
}

.home-page .home-hero::before {
  opacity: .7;
  background-size: 92px 92px;
}

.home-page .home-hero-grid {
  grid-template-columns: minmax(420px, 0.9fr) minmax(500px, 1.1fr);
  gap: clamp(52px, 8vw, 96px);
}

.home-page .eyebrow {
  border-color: #d7e6f7;
  background: #f3f8ff;
  color: #1f66d1;
}

.home-page .eyebrow,
.ai-page .eyebrow {
  display: none;
}

.home-page h1 {
  max-width: 560px;
  margin-top: 0;
  font-size: clamp(38px, 4vw, 54px);
  font-weight: 780;
  color: #14233d;
}

.home-page .section-title {
  margin-top: 0;
}

.home-page .hero-text {
  margin-top: 14px;
  color: #53657c;
  font-size: clamp(17px, 1.6vw, 20px);
  font-weight: 650;
}

.hero-stat-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 26px;
  margin-top: clamp(48px, 6vw, 66px);
  max-width: 650px;
}

.hero-stat {
  min-width: 0;
}

.metric-icon,
.tile-icon,
.big-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
}

.metric-icon {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  background: #eaf3ff;
  color: #1f66d1;
}

.metric-icon svg,
.tile-icon svg,
.big-icon svg {
  width: 1em;
  height: 1em;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.hero-stat strong {
  display: block;
  margin-top: 15px;
  color: #1f66d1;
  font-size: 24px;
  line-height: 1.1;
}

.hero-stat p {
  margin-top: 8px;
  color: #5f7086;
  font-size: 13px;
  line-height: 1.45;
}

.hero-dashboard {
  position: relative;
  min-height: 460px;
}

.dashboard-window {
  position: absolute;
  top: 0;
  left: 0;
  width: 76%;
  min-height: 360px;
  border: 1px solid #d8e5f4;
  border-radius: 8px;
  background: rgba(255,255,255,0.88);
  box-shadow: 0 24px 70px rgba(42, 86, 136, 0.14);
  backdrop-filter: blur(16px);
  animation: float-panel 7s ease-in-out infinite;
}

.window-dots {
  display: flex;
  gap: 6px;
  padding: 18px 20px 0;
}

.window-dots i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #b8cbe3;
}

.dash-sidebar {
  position: absolute;
  left: 20px;
  top: 52px;
  display: grid;
  gap: 15px;
  width: 78px;
}

.dash-sidebar span {
  height: 10px;
  border-radius: 999px;
  background: #dbe7f5;
}

.dash-sidebar span:nth-child(1) {
  width: 56px;
  background: #2a74dc;
}

.dash-sidebar span:nth-child(2) { width: 42px; }
.dash-sidebar span:nth-child(3) { width: 62px; }
.dash-sidebar span:nth-child(4) { width: 38px; }
.dash-sidebar span:nth-child(5) { width: 54px; }

.task-panel {
  position: absolute;
  top: 54px;
  left: 128px;
  right: 26px;
  padding: 18px;
  border-radius: 8px;
  background: #f8fbff;
  border: 1px solid #dfebf7;
}

.task-panel strong {
  color: #14233d;
  font-size: 16px;
}

.task-panel p,
.chart-panel small {
  display: block;
  margin-top: 8px;
  color: #6d7e91;
  font-size: 13px;
}

.task-panel ul {
  display: grid;
  gap: 9px;
  margin-top: 12px;
}

.task-panel li {
  display: grid;
  grid-template-columns: 15px 1fr auto;
  align-items: center;
  gap: 9px;
  color: #53657c;
  font-size: 13px;
}

.task-panel li span {
  width: 12px;
  height: 12px;
  border: 2px solid #2a74dc;
  border-radius: 50%;
}

.task-panel li em {
  color: #1f66d1;
  font-style: normal;
  font-weight: 800;
}

.chart-panel {
  position: absolute;
  left: 128px;
  right: 26px;
  bottom: 26px;
  padding: 18px;
  border-radius: 8px;
  background: #fff;
  border: 1px solid #dfe9f5;
  box-shadow: 0 14px 34px rgba(42, 86, 136, 0.08);
}

.chart-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 10px;
  color: #14233d;
}

.chart-panel svg {
  width: 100%;
  height: 66px;
  margin-top: 10px;
}

.chart-panel path {
  fill: none;
  stroke: #2a74dc;
  stroke-width: 4;
  stroke-linecap: round;
}

.node-flow {
  position: absolute;
  right: 0;
  top: 86px;
  display: grid;
  gap: 24px;
  width: 230px;
}

.node-flow::before {
  content: "";
  position: absolute;
  top: 24px;
  bottom: 24px;
  left: 24px;
  width: 1px;
  background: #b8cbea;
}

.flow-node {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 54px;
  padding: 0 16px 0 14px;
  border: 1px solid #d9e6f5;
  border-radius: 8px;
  background: rgba(255,255,255,0.92);
  box-shadow: 0 12px 28px rgba(42, 86, 136, 0.1);
  color: #33445d;
  font-size: 14px;
  font-weight: 800;
}

.flow-node span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px solid #b7cff0;
  color: #1f66d1;
  font-size: 11px;
}

.data-cylinder {
  position: absolute;
  width: 52px;
  height: 62px;
  border-radius: 50% / 18%;
  background: linear-gradient(180deg, #f5f9ff, #cde1fa);
  border: 1px solid #bcd4ef;
  opacity: .86;
}

.data-cylinder::before,
.data-cylinder::after {
  content: "";
  position: absolute;
  left: 6px;
  right: 6px;
  height: 1px;
  background: rgba(31,102,209,.28);
}

.data-cylinder::before { top: 22px; }
.data-cylinder::after { top: 40px; }
.data-cylinder.one { right: 160px; top: 220px; transform: scale(.82); }
.data-cylinder.two { right: 22px; bottom: 24px; }

.home-hero-visual {
  position: relative;
  min-height: 520px;
  display: grid;
  place-items: center;
}

.home-hero-visual::before {
  content: "";
  position: absolute;
  inset: 9% 0 6% 8%;
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(31,102,209,.14), transparent 62%),
    radial-gradient(circle at 70% 72%, rgba(18,128,111,.12), transparent 48%);
  filter: blur(18px);
}

.home-hero-visual img {
  position: relative;
  z-index: 1;
  width: min(110%, 820px);
  height: auto;
  display: block;
  filter: drop-shadow(0 30px 58px rgba(31,83,135,.13));
}

.home-page .home-section {
  padding: clamp(88px, 10vw, 130px) 0;
}

.section-head.narrow {
  max-width: 760px;
}

.core-card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
  max-width: 1120px;
  margin: 0 auto;
}

.core-card {
  position: relative;
  min-height: 300px;
  padding: 42px;
  border-radius: 8px;
  border: 1px solid #dbe7f4;
  overflow: hidden;
}

.core-card.blue {
  color: #fff;
  background:
    radial-gradient(circle at 88% 0%, rgba(255,255,255,0.24), transparent 28%),
    linear-gradient(135deg, #1767da 0%, #0b56c5 100%);
  box-shadow: 0 24px 52px rgba(31,102,209,0.2);
}

.core-card.light {
  background: #fff;
}

.big-icon {
  width: 78px;
  height: 78px;
  border-radius: 18px;
  font-size: 46px;
  background: rgba(255,255,255,0.18);
}

.core-card.light .big-icon {
  color: #1f66d1;
  background: #eaf3ff;
}

.core-card h3 {
  margin-top: 28px;
  font-size: 28px;
  line-height: 1.25;
}

.core-card p {
  margin-top: 14px;
  color: inherit;
  opacity: .84;
  line-height: 1.8;
}

.core-card.light p {
  color: var(--muted);
  opacity: 1;
}

.check-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 13px 18px;
  margin-top: 28px;
  font-size: 14px;
}

.check-grid li {
  position: relative;
  padding-left: 22px;
  color: inherit;
  opacity: .9;
}

.check-grid li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: currentColor;
  font-weight: 900;
}

.core-card.light .check-grid li {
  color: #53657c;
}

.origin-timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  max-width: 1260px;
  margin: 34px auto 0;
  padding: 22px;
  border: 1px solid #dbe7f4;
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(31,102,209,.06), rgba(255,255,255,.92) 44%, rgba(18,128,111,.05)),
    rgba(255,255,255,.88);
}

.origin-timeline::before {
  content: "";
  position: absolute;
  left: 7%;
  right: 7%;
  top: 51px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(31,102,209,.32), transparent);
}

.origin-timeline article {
  position: relative;
  z-index: 1;
  min-height: 168px;
  padding: 22px;
  border: 1px solid rgba(207,225,245,.9);
  border-radius: 8px;
  background: rgba(255,255,255,.86);
}

.origin-timeline article::before {
  content: "";
  display: block;
  width: 12px;
  height: 12px;
  margin-bottom: 20px;
  border: 3px solid #eaf3ff;
  border-radius: 50%;
  background: #1f66d1;
  box-shadow: 0 0 0 1px #bcd4f0;
}

.origin-timeline span {
  display: block;
  color: #1f66d1;
  font-size: 14px;
  font-weight: 900;
}

.origin-timeline strong {
  display: block;
  margin-top: 9px;
  color: #14233d;
  font-size: 18px;
  line-height: 1.35;
}

.origin-timeline p {
  margin-top: 10px;
  color: #607187;
  font-size: 14px;
  line-height: 1.72;
}

.timeline-steps {
  position: relative;
  display: grid;
  gap: 0;
  padding-left: 6px;
}

.timeline-steps::before {
  content: "";
  position: absolute;
  top: 28px;
  bottom: 28px;
  left: 25px;
  width: 1px;
  background: #c8dbf2;
}

.timeline-steps article {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 20px;
  padding: 10px 0 22px;
}

.timeline-steps article > span {
  position: relative;
  z-index: 1;
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #f2f7ff;
  border: 1px solid #c5daf4;
  color: #1f66d1;
  font-weight: 850;
}

.timeline-steps h3 {
  font-size: 21px;
  line-height: 1.3;
}

.timeline-steps p {
  margin-top: 7px;
  color: var(--muted);
  line-height: 1.78;
}

.diagnosis-section {
  background:
    linear-gradient(180deg, #fff 0%, #f8fbff 100%);
}

.quote-card {
  margin-top: 44px;
  padding: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, #eef6ff, #fff);
  color: #53657c;
}

.quote-card b {
  display: block;
  color: #1f66d1;
  font-size: 52px;
  line-height: .7;
}

.quote-card span {
  display: block;
  margin-top: 8px;
  line-height: 1.85;
}

.problem-map h3 {
  margin-bottom: 22px;
  color: #14233d;
  font-size: 20px;
}

.problem-row {
  display: grid;
  grid-template-columns: minmax(150px, 1fr) 28px minmax(190px, 1.18fr);
  gap: 14px;
  align-items: center;
  margin-bottom: 14px;
}

.problem-row strong,
.problem-row span {
  min-height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border: 1px solid #dbe7f4;
  border-radius: 8px;
  background: #f5f9ff;
  color: #1f66d1;
  font-size: 16px;
}

.problem-row span {
  background: #fff7ed;
  border-color: #f1dfc8;
  color: #7c5b32;
}

.problem-row i {
  position: relative;
  display: block;
  height: 1px;
  background: #9fc3ef;
}

.problem-row i::after {
  content: "";
  position: absolute;
  right: -2px;
  top: -4px;
  width: 8px;
  height: 8px;
  border-top: 1px solid #1f66d1;
  border-right: 1px solid #1f66d1;
  transform: rotate(45deg);
}

.product-entry-section {
  background:
    linear-gradient(180deg, #fff 0%, #f8fbff 100%);
}

.product-entry-layout {
  display: grid;
  grid-template-columns: minmax(420px, .82fr) minmax(620px, 1.18fr);
  gap: clamp(42px, 6vw, 84px);
  align-items: center;
}

.product-entry-copy .section-title {
  max-width: 660px;
}

.product-entry-copy .section-desc {
  max-width: 600px;
  margin-top: 18px;
}

.product-map-visual {
  margin-top: 34px;
  min-height: 300px;
  display: grid;
  place-items: center;
  border: 1px solid #dbe7f4;
  border-radius: 8px;
  background:
    radial-gradient(circle at 22% 18%, rgba(31,102,209,.1), transparent 32%),
    linear-gradient(135deg, #f7fbff, #fff 58%, #effaf7);
  overflow: hidden;
}

.product-map-visual img {
  width: 108%;
  max-width: none;
  height: auto;
  display: block;
}

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

.product-entry-grid article {
  min-height: 206px;
  padding: 28px;
  border: 1px solid #dbe7f4;
  border-radius: 8px;
  background: rgba(255,255,255,.94);
  box-shadow: 0 16px 34px rgba(30,58,92,.055);
}

.product-entry-grid .tile-icon {
  width: 62px;
  height: 62px;
  font-size: 29px;
  box-shadow: none;
}

.product-entry-grid h3 {
  margin-top: 22px;
  color: #14233d;
  font-size: 21px;
  line-height: 1.35;
}

.product-entry-grid p {
  margin-top: 10px;
  color: #607187;
  font-size: 15px;
  line-height: 1.76;
}

.industry-section {
  background: #f3f8fd;
}

.industry-grid {
  gap: 24px;
}

.industry-tile {
  min-height: 238px;
  padding: 38px;
}

.tile-icon {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  font-size: 46px;
  background: #eaf3ff;
  color: #1f66d1;
  box-shadow: 0 0 0 14px rgba(31, 102, 209, .045);
}

.industry-tile .tile-icon svg {
  width: 1.34em;
  height: 1.34em;
  stroke-width: 2.1;
}

.tile-icon.amber {
  background: #fff1df;
  color: #d78b21;
  box-shadow: 0 0 0 14px rgba(215, 139, 33, .06);
}

.tile-icon.green {
  background: #e7f7f1;
  color: #12806f;
  box-shadow: 0 0 0 14px rgba(18, 128, 111, .055);
}

.tile-icon.violet {
  background: #eef0ff;
  color: #6670d8;
  box-shadow: 0 0 0 14px rgba(102, 112, 216, .055);
}

.industry-tile h3 {
  margin-top: 28px;
  font-size: 25px;
}

.industry-tile p {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.industry-tile p em {
  display: inline-flex;
  padding: 5px 10px;
  border: 1px solid #dbe7f4;
  border-radius: 999px;
  background: #f9fbfe;
  color: #62738a;
  font-style: normal;
  font-size: 13px;
}

.advantage-card {
  background: #fff;
}

.advantage-card .tile-icon {
  width: 74px;
  height: 74px;
  font-size: 34px;
}

.advantage-card h3 {
  margin-top: 28px;
  font-size: 24px;
}

.advantage-card ul {
  display: grid;
  gap: 10px;
  margin-top: 18px;
  color: #53657c;
  font-size: 15px;
}

.advantage-card li {
  position: relative;
  padding-left: 15px;
}

.advantage-card li::before {
  content: "";
  position: absolute;
  top: .72em;
  left: 0;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #1f66d1;
}

.capability-base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 30px;
  padding: 18px 22px;
  border: 1px solid #dbe7f4;
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(31,102,209,.08), rgba(18,128,111,.06)),
    #f8fbff;
}

.capability-base strong {
  margin-right: 6px;
  color: #1f66d1;
  font-size: 17px;
}

.capability-base span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 14px;
  border: 1px solid #d5e5f5;
  border-radius: 999px;
  background: rgba(255,255,255,.76);
  color: #315a87;
  font-size: 14px;
  font-weight: 850;
}

.case-board {
  display: grid;
  grid-template-columns: minmax(360px, 0.86fr) minmax(520px, 1.14fr);
  gap: 22px;
}

.case-board .featured-case {
  background: #fff;
}

.case-visual {
  position: relative;
  height: 250px;
  overflow: hidden;
  border-bottom: 1px solid #dbe7f4;
  background:
    radial-gradient(circle at 18% 18%, rgba(31, 102, 209, .22), transparent 30%),
    radial-gradient(circle at 82% 24%, rgba(18, 128, 111, .16), transparent 28%),
    linear-gradient(135deg, #eef6ff 0%, #f8fbff 52%, #eefbf7 100%);
}

.case-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(31, 102, 209, .08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31, 102, 209, .08) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: linear-gradient(135deg, rgba(0,0,0,.84), transparent 82%);
}

.case-orbit {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 250px;
  height: 118px;
  border: 1px solid rgba(31, 102, 209, .2);
  border-radius: 999px;
  transform: translate(-50%, -50%) rotate(-12deg);
  background: rgba(255, 255, 255, .28);
}

.case-flow-node {
  position: absolute;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 72px;
  height: 72px;
  border: 1px solid rgba(31, 102, 209, .2);
  border-radius: 18px;
  background: rgba(255, 255, 255, .82);
  color: #1f66d1;
  font-size: 16px;
  font-weight: 850;
  box-shadow: 0 18px 34px rgba(31, 102, 209, .12);
  backdrop-filter: blur(10px);
}

.case-flow-node span {
  position: relative;
  z-index: 1;
}

.case-flow-node::after {
  content: "";
  position: absolute;
  inset: 12px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(31, 102, 209, .1), rgba(255,255,255,.45));
}

.node-a {
  left: 12%;
  top: 22%;
}

.node-b {
  left: 38%;
  top: 42%;
}

.node-c {
  right: 24%;
  top: 18%;
}

.node-d {
  right: 10%;
  bottom: 18%;
}

.case-flow-line {
  position: absolute;
  z-index: 1;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(31, 102, 209, .18), rgba(31, 102, 209, .6), rgba(18, 128, 111, .28));
  transform-origin: left center;
}

.line-a {
  left: 25%;
  top: 45%;
  width: 18%;
  transform: rotate(18deg);
}

.line-b {
  left: 50%;
  top: 39%;
  width: 19%;
  transform: rotate(-22deg);
}

.line-c {
  right: 19%;
  top: 45%;
  width: 15%;
  transform: rotate(48deg);
}

.case-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 24px;
}

.case-stats strong {
  color: #1f66d1;
  font-size: 24px;
}

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

.contact-ribbon {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px;
  margin-top: 28px;
  padding: 18px 24px;
  border: 1px solid #dbe7f4;
  border-radius: 8px;
  background: rgba(255,255,255,0.78);
}

.contact-ribbon strong {
  color: #1f66d1;
}

body.home-page .site-footer {
  padding: 54px 0 40px;
  background: #fff;
  color: #53657c;
  border-top: 1px solid #dbe7f4;
}

.footer-v2 {
  display: grid;
  grid-template-columns: 1.7fr repeat(3, .8fr) 1fr;
  gap: 42px;
  align-items: start;
}

.footer-brand img {
  height: 38px;
  width: auto;
}

.footer-brand p {
  max-width: 300px;
  margin-top: 16px;
  color: #53657c;
  font-size: 14px;
  line-height: 1.8;
}

.footer-brand small {
  display: block;
  margin-top: 34px;
  color: #8a99ab;
  font-size: 12px;
}

.footer-v2 h4 {
  margin: 0 0 14px;
  color: #14233d;
  font-size: 15px;
}

.footer-v2 .footer-links {
  gap: 9px;
}

.footer-v2 .footer-links a,
.footer-contact p {
  color: #53657c;
  font-size: 14px;
}

.qr-box {
  width: 78px;
  height: 78px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 14px;
  border: 1px solid #dbe7f4;
  border-radius: 4px;
  background-image: url("resources/qr.png");
  background-size: cover;
  color: rgba(0,0,0,.2);
  font-size: 12px;
  font-weight: 800;
}

@media (max-width: 1060px) {
  .home-page .home-hero-grid,
  .case-board,
  .product-entry-layout,
  .footer-v2 {
    grid-template-columns: 1fr;
  }

  .hero-dashboard,
  .home-hero-visual {
    min-height: 420px;
  }

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

  .origin-timeline::before {
    display: none;
  }
}

@media (max-width: 760px) {
  .home-page .container {
    width: min(100% - 28px, 1500px);
  }

  .hero-stat-grid,
  .industry-grid,
  .advantage-grid,
  .origin-timeline,
  .product-entry-grid,
  .case-board .case-stack {
    grid-template-columns: 1fr;
  }

  .hero-dashboard {
    display: none;
  }

  .home-hero-visual {
    min-height: 300px;
  }

  .home-hero-visual img {
    width: 116%;
  }

  .core-card {
    padding: 30px;
  }

  .check-grid,
  .problem-row,
  .contact-ribbon {
    grid-template-columns: 1fr;
  }

  .origin-timeline,
  .product-map-visual,
  .product-entry-grid article {
    padding: 20px;
  }

  .product-map-visual {
    min-height: 230px;
  }

  .problem-row i {
    display: none;
  }

  .footer-v2 {
    gap: 24px;
  }
}

/* AI business upgrade page */
.ai-page {
  background: #f7fbff;
}

.ai-page .container {
  width: min(1500px, calc(100% - 72px));
}

.ai-page .ai-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(92px, 11vw, 150px) 0 clamp(100px, 11vw, 152px);
  background:
    linear-gradient(112deg, rgba(255,255,255,.98), rgba(247,251,255,.96) 52%, rgba(235,244,255,.9)),
    radial-gradient(circle at 82% 18%, rgba(31,102,209,.13), transparent 34%),
    radial-gradient(circle at 74% 80%, rgba(18,128,111,.1), transparent 30%);
}

.ai-page .ai-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(31,102,209,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31,102,209,.045) 1px, transparent 1px);
  background-size: 92px 92px;
  mask-image: linear-gradient(90deg, transparent 0%, #000 38%, #000 100%);
  pointer-events: none;
}

.ai-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(420px, .86fr) minmax(560px, 1.14fr);
  gap: clamp(56px, 8vw, 110px);
  align-items: center;
}

.ai-hero-copy h1 {
  max-width: 700px;
  margin-top: 0;
  color: #14233d;
  font-size: clamp(38px, 4.2vw, 58px);
  line-height: 1.18;
  font-weight: 780;
}

.ai-hero-copy p {
  max-width: 660px;
  margin-top: 22px;
  color: #53657c;
  font-size: 18px;
  line-height: 1.95;
}

.ai-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 34px;
}

.ai-hero-tags span {
  padding: 7px 12px;
  border: 1px solid #d7e6f7;
  border-radius: 999px;
  background: rgba(255,255,255,.82);
  color: #315a87;
  font-size: 14px;
  font-weight: 750;
}

.ai-path-visual {
  position: relative;
  min-height: 520px;
}

.ai-path-visual::before {
  content: "";
  position: absolute;
  inset: 38px 42px;
  border: 1px solid rgba(31,102,209,.13);
  border-radius: 8px;
  transform: skewY(-2deg);
}

.path-card,
.path-dashboard {
  position: absolute;
  border: 1px solid #d8e5f4;
  border-radius: 8px;
  background: rgba(255,255,255,.9);
  box-shadow: 0 24px 60px rgba(42,86,136,.12);
  backdrop-filter: blur(16px);
}

.path-card {
  width: 240px;
  padding: 22px;
}

.path-card.source {
  top: 16px;
  left: 28px;
}

.path-card.output {
  right: 18px;
  bottom: 12px;
}

.path-card small {
  color: #6c7e92;
  font-size: 12px;
  font-weight: 850;
  text-transform: uppercase;
}

.path-card strong {
  display: block;
  margin-top: 8px;
  color: #14233d;
  font-size: 24px;
}

.path-card p {
  margin-top: 8px;
  color: #64758a;
  font-size: 14px;
  line-height: 1.7;
}

.path-lane {
  position: absolute;
  top: 176px;
  left: 72px;
  right: 48px;
  display: grid;
  grid-template-columns: max-content 1fr max-content 1fr max-content 1fr max-content 1fr max-content;
  align-items: center;
  gap: 10px;
}

.path-lane span {
  padding: 10px 14px;
  border: 1px solid #cfe0ef;
  border-radius: 8px;
  background: #f8fbff;
  color: #1f66d1;
  font-size: 14px;
  font-weight: 850;
}

.path-lane i {
  height: 1px;
  min-width: 24px;
  background: linear-gradient(90deg, rgba(31,102,209,.16), rgba(31,102,209,.72));
}

.path-dashboard {
  left: 138px;
  right: 108px;
  bottom: 90px;
  padding: 24px;
  animation: float-panel 8s ease-in-out infinite;
}

.dash-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #14233d;
}

.dash-head em {
  width: 48px;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, #1f66d1, #12806f);
}

.dash-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 20px;
}

.dash-grid div {
  padding: 16px;
  border-radius: 8px;
  background: #f5f9ff;
}

.dash-grid small {
  display: block;
  color: #6c7e92;
}

.dash-grid strong {
  display: block;
  margin-top: 6px;
  color: #1f66d1;
  font-size: 24px;
}

.dash-lines {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

.dash-lines span {
  height: 9px;
  border-radius: 999px;
  background: linear-gradient(90deg, #d8e8fb, #f4f8fd);
}

.dash-lines span:nth-child(2) { width: 78%; }
.dash-lines span:nth-child(3) { width: 58%; }

.ai-section {
  padding: clamp(108px, 12vw, 168px) 0;
}

.ai-section:nth-of-type(even) {
  background: #fff;
}

.ai-section-title {
  max-width: 860px;
  margin: 0 auto clamp(54px, 6vw, 82px);
  text-align: center;
}

.ai-section-title h2 {
  margin-top: 0;
  color: #14233d;
  font-size: clamp(31px, 3.5vw, 46px);
  line-height: 1.24;
  font-weight: 780;
}

.ai-section-title p {
  max-width: 720px;
  margin: 16px auto 0;
  color: #607187;
  font-size: 17px;
  line-height: 1.85;
}

.problem-grid {
  display: grid;
  grid-template-columns: minmax(360px, .78fr) minmax(560px, 1.22fr);
  gap: clamp(50px, 7vw, 94px);
  align-items: center;
}

.problem-lede {
  padding: clamp(34px, 4vw, 54px);
  border-left: 4px solid #1f66d1;
  border-radius: 0 8px 8px 0;
  background: linear-gradient(135deg, #f6faff, #fff);
  box-shadow: 0 16px 46px rgba(30,58,92,.07);
}

.problem-lede h2 {
  margin-top: 0;
  color: #14233d;
  font-size: clamp(30px, 3.2vw, 42px);
  line-height: 1.25;
}

.problem-lede p {
  margin-top: 18px;
  color: #607187;
  line-height: 1.9;
}

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

.problem-list article {
  min-height: 210px;
  padding: 28px;
  border: 1px solid #dbe7f4;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 14px 34px rgba(30,58,92,.06);
}

.problem-list span {
  color: #1f66d1;
  font-size: 13px;
  font-weight: 900;
}

.problem-list h3 {
  margin-top: 24px;
  color: #14233d;
  font-size: 22px;
  line-height: 1.35;
}

.problem-list p {
  margin-top: 12px;
  color: #607187;
  line-height: 1.78;
}

.service-shell {
  display: grid;
  grid-template-columns: minmax(320px, .42fr) minmax(620px, 1fr);
  gap: 28px;
  align-items: stretch;
}

.service-tabs,
.service-panels,
.scenario-shell,
.tech-map,
.case-lab {
  border: 1px solid #dbe7f4;
  border-radius: 8px;
  background: rgba(255,255,255,.9);
  box-shadow: 0 20px 52px rgba(30,58,92,.08);
}

.service-tabs {
  display: grid;
  gap: 10px;
  padding: 18px;
  align-content: start;
}

.service-tabs button,
.scenario-tabs button,
.case-switcher button {
  font: inherit;
  cursor: pointer;
}

.service-tabs button {
  display: grid;
  grid-template-columns: 42px 1fr;
  align-items: center;
  gap: 14px;
  min-height: 68px;
  padding: 0 16px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: #455a73;
  text-align: left;
  font-weight: 800;
}

.service-tabs svg,
.scenario-title svg {
  width: 28px;
  height: 28px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.service-tabs button.active {
  color: #1f66d1;
  border-color: #cfe0ef;
  background: #f2f7ff;
  box-shadow: 0 10px 24px rgba(31,102,209,.08);
}

.service-panels {
  min-height: 500px;
  padding: clamp(34px, 4vw, 56px);
  position: relative;
  overflow: hidden;
}

.service-panels::before {
  content: "";
  position: absolute;
  right: -90px;
  top: -90px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: rgba(31,102,209,.08);
}

.service-panel,
.scenario-panel,
.case-panel {
  display: none;
}

.service-panel.active,
.scenario-panel.active,
.case-panel.active {
  display: block;
  animation: panel-in .34s ease both;
}

.panel-kicker {
  display: inline-flex;
  padding: 7px 11px;
  border-radius: 999px;
  background: #eef6ff;
  color: #1f66d1;
  font-size: 14px;
  font-weight: 850;
}

.service-panel h3 {
  max-width: 680px;
  margin-top: 28px;
  color: #14233d;
  font-size: clamp(30px, 3vw, 42px);
  line-height: 1.24;
}

.service-panel > p {
  max-width: 760px;
  margin-top: 18px;
  color: #607187;
  font-size: 17px;
  line-height: 1.9;
}

.panel-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 42px;
}

.panel-columns div {
  padding: 24px;
  border: 1px solid #dbe7f4;
  border-radius: 8px;
  background: #f8fbff;
}

.panel-columns b,
.scenario-columns b {
  color: #14233d;
  font-size: 17px;
}

.panel-columns ul,
.scenario-columns ul {
  display: grid;
  gap: 10px;
  margin-top: 14px;
  color: #607187;
}

.panel-columns li,
.scenario-columns li {
  position: relative;
  padding-left: 16px;
}

.panel-columns li::before,
.scenario-columns li::before {
  content: "";
  position: absolute;
  top: .72em;
  left: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #1f66d1;
}

.scenario-shell {
  padding: 24px;
}

.scenario-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}

.scenario-tabs button {
  min-height: 42px;
  padding: 0 15px;
  border: 1px solid #dbe7f4;
  border-radius: 999px;
  background: #fff;
  color: #53657c;
  font-weight: 800;
}

.scenario-tabs button.active {
  color: #fff;
  background: #1f66d1;
  border-color: #1f66d1;
}

.scenario-panels {
  min-height: 460px;
  padding: clamp(34px, 4vw, 54px);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(31,102,209,.08), rgba(255,255,255,.98) 38%),
    #fff;
}

.scenario-title {
  display: flex;
  align-items: center;
  gap: 18px;
}

.scenario-title > svg {
  width: 72px;
  height: 72px;
  padding: 18px;
  border-radius: 50%;
  background: #eaf3ff;
  color: #1f66d1;
}

.scenario-title span {
  color: #1f66d1;
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
}

.scenario-title h3 {
  margin-top: 4px;
  color: #14233d;
  font-size: 34px;
  line-height: 1.2;
}

.scenario-columns {
  display: grid;
  grid-template-columns: .98fr 1.15fr .98fr;
  gap: 18px;
  margin-top: 38px;
}

.scenario-columns div {
  min-height: 220px;
  padding: 26px;
  border: 1px solid #dbe7f4;
  border-radius: 8px;
  background: rgba(255,255,255,.86);
}

.scenario-columns p {
  margin-top: 14px;
  color: #607187;
  line-height: 1.85;
}

.tech-map {
  display: grid;
  gap: 12px;
  padding: 24px;
  background:
    linear-gradient(135deg, rgba(31,102,209,.06), rgba(255,255,255,.95)),
    #fff;
}

.tech-layer {
  display: grid;
  grid-template-columns: 56px minmax(220px, .75fr) 1fr;
  align-items: center;
  gap: 18px;
  min-height: 74px;
  padding: 18px 22px;
  border: 1px solid #dbe7f4;
  border-radius: 8px;
  background: rgba(255,255,255,.86);
}

.tech-layer span {
  display: inline-flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #eaf3ff;
  color: #1f66d1;
  font-weight: 900;
}

.tech-layer strong {
  color: #14233d;
  font-size: 18px;
}

.tech-layer em {
  color: #607187;
  font-style: normal;
  line-height: 1.65;
}

.tech-layer.accent {
  border-color: #9fc3ef;
  background: linear-gradient(90deg, rgba(31,102,209,.12), rgba(255,255,255,.9));
}

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

.delivery-steps article {
  min-height: 280px;
  padding: 32px;
  border: 1px solid #dbe7f4;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 16px 40px rgba(30,58,92,.07);
}

.delivery-steps span {
  color: #1f66d1;
  font-size: 14px;
  font-weight: 900;
}

.delivery-steps h3 {
  margin-top: 56px;
  color: #14233d;
  font-size: 28px;
}

.delivery-steps p {
  margin-top: 14px;
  color: #607187;
  line-height: 1.8;
}

.case-lab {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 24px;
  padding: 24px;
}

.case-detail {
  min-height: 420px;
  padding: clamp(34px, 4vw, 54px);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(31,102,209,.1), rgba(255,255,255,.96) 42%),
    #fff;
}

.case-panel span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 14px;
  border: 1px solid #bfd7f1;
  border-radius: 999px;
  background: #edf6ff;
  color: #1f66d1;
  font-size: 18px;
  font-weight: 900;
}

.case-panel h3 {
  max-width: 780px;
  margin-top: 24px;
  color: #14233d;
  font-size: clamp(30px, 3vw, 42px);
  line-height: 1.24;
}

.case-panel p {
  max-width: 780px;
  margin-top: 18px;
  color: #607187;
  font-size: 17px;
  line-height: 1.9;
}

.case-panel .tag-row {
  margin-top: 34px;
}

.case-switcher {
  display: grid;
  gap: 10px;
  align-content: start;
}

.case-switcher button {
  min-height: 54px;
  padding: 0 18px;
  border: 1px solid var(--case-border, #dbe7f4);
  border-radius: 8px;
  background: linear-gradient(135deg, var(--case-bg, #fff), #fff 88%);
  color: #53657c;
  text-align: left;
  font-weight: 800;
  transition: border-color .22s ease, color .22s ease, background .22s ease, box-shadow .22s ease, transform .22s ease;
}

.case-switcher button:nth-child(1) {
  --case-bg: #eef7ff;
  --case-border: #c7def7;
  --case-color: #1f66d1;
}

.case-switcher button:nth-child(2) {
  --case-bg: #f5f1ff;
  --case-border: #d9ccff;
  --case-color: #6b55d9;
}

.case-switcher button:nth-child(3) {
  --case-bg: #fff6e8;
  --case-border: #f3d7ac;
  --case-color: #b86f16;
}

.case-switcher button:nth-child(4) {
  --case-bg: #eefbf7;
  --case-border: #bfe5d8;
  --case-color: #168468;
}

.case-switcher button:nth-child(5) {
  --case-bg: #f1f7ff;
  --case-border: #c4d8f2;
  --case-color: #2b69a8;
}

.case-switcher button:nth-child(6) {
  --case-bg: #fff0f4;
  --case-border: #efc4d0;
  --case-color: #bd4966;
}

.case-switcher button:nth-child(7) {
  --case-bg: #f4faee;
  --case-border: #cde2b5;
  --case-color: #5f812b;
}

.case-switcher button:hover {
  color: var(--case-color, #1f66d1);
  border-color: var(--case-color, #1f66d1);
  transform: translateX(2px);
}

.case-switcher button.active {
  color: var(--case-color, #1f66d1);
  border-color: var(--case-color, #1f66d1);
  background: var(--case-bg, #f2f7ff);
  box-shadow: inset 4px 0 0 var(--case-color, #1f66d1), 0 14px 28px rgba(29, 72, 118, .09);
}

.ai-contact-ribbon {
  background: #fff;
}

@keyframes panel-in {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 1120px) {
  .ai-hero-grid,
  .problem-grid,
  .service-shell,
  .case-lab {
    grid-template-columns: 1fr;
  }

  .ai-path-visual {
    min-height: 500px;
  }

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

@media (max-width: 820px) {
  .ai-page .container {
    width: min(100% - 28px, 1500px);
  }

  .ai-page .ai-hero {
    padding: 66px 0 76px;
  }

  .ai-hero-grid {
    gap: 40px;
  }

  .ai-path-visual {
    display: none;
  }

  .problem-list,
  .panel-columns,
  .scenario-columns,
  .delivery-steps {
    grid-template-columns: 1fr;
  }

  .service-tabs button {
    grid-template-columns: 36px 1fr;
  }

  .service-tabs svg {
    width: 24px;
    height: 24px;
  }

  .service-panels,
  .scenario-panels,
  .case-detail {
    padding: 26px;
  }

  .tech-layer {
    grid-template-columns: 1fr;
  }

  .case-lab {
    padding: 16px;
  }
}

/* Smart building page */
.smart-page {
  background: #f7fbff;
}

.smart-page .container {
  width: min(1500px, calc(100% - 72px));
}

.smart-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(108px, 12vw, 166px) 0 clamp(112px, 12vw, 176px);
  background:
    linear-gradient(118deg, rgba(255,255,255,.98), rgba(247,251,255,.98) 55%, rgba(235,247,249,.92)),
    #f7fbff;
}

.smart-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(31,102,209,.048) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31,102,209,.04) 1px, transparent 1px);
  background-size: 96px 96px;
  mask-image: linear-gradient(90deg, transparent 0%, #000 34%, #000 100%);
  pointer-events: none;
}

.smart-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(430px, .84fr) minmax(560px, 1.16fr);
  gap: clamp(62px, 8vw, 112px);
  align-items: center;
}

.smart-hero-copy h1 {
  max-width: 640px;
  color: #14233d;
  font-size: clamp(38px, 4vw, 56px);
  line-height: 1.22;
  font-weight: 780;
}

.smart-hero-copy p {
  max-width: 620px;
  margin-top: 24px;
  color: #53657c;
  font-size: 18px;
  line-height: 1.95;
}

.smart-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 36px;
}

.smart-hero-tags span {
  padding: 8px 13px;
  border: 1px solid #d7e6f7;
  border-radius: 999px;
  background: rgba(255,255,255,.84);
  color: #315a87;
  font-size: 14px;
  font-weight: 750;
}

.campus-visual {
  position: relative;
  min-height: 560px;
  border: 1px solid #dbe7f4;
  border-radius: 8px;
  background:
    linear-gradient(145deg, rgba(255,255,255,.72), rgba(241,248,255,.9)),
    #fff;
  box-shadow: 0 28px 72px rgba(30,58,92,.1);
  overflow: hidden;
}

.campus-visual.generated-visual {
  display: grid;
  place-items: center;
  min-height: 520px;
  border: 0;
  background: transparent;
  box-shadow: none;
  overflow: visible;
  margin-right: -42px;
}

.campus-visual.generated-visual img {
  width: min(112%, 840px);
  height: auto;
  display: block;
  filter: drop-shadow(0 30px 54px rgba(30,58,92,.08));
  mix-blend-mode: normal;
}

.campus-visual.generated-visual::before,
.campus-visual.generated-visual::after {
  display: none;
}

.campus-visual::before {
  content: "";
  position: absolute;
  inset: 28px;
  border: 1px solid rgba(31,102,209,.12);
  border-radius: 8px;
  transform: skewY(-3deg);
}

.campus-visual::after {
  content: "";
  position: absolute;
  left: 8%;
  right: 8%;
  bottom: 76px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(31,102,209,.3), transparent);
}

.campus-panel {
  position: absolute;
  top: 42px;
  right: 42px;
  width: 230px;
  padding: 20px;
  border: 1px solid #cfe0ef;
  border-radius: 8px;
  background: rgba(255,255,255,.88);
  box-shadow: 0 18px 42px rgba(30,58,92,.1);
  backdrop-filter: blur(14px);
}

.campus-panel strong,
.campus-panel span {
  display: block;
}

.campus-panel strong {
  color: #14233d;
  font-size: 22px;
}

.campus-panel span {
  margin-top: 8px;
  color: #607187;
  font-size: 14px;
}

.campus-building {
  position: absolute;
  left: 50%;
  top: 52%;
  width: 280px;
  height: 230px;
  transform: translate(-50%, -50%) skewY(-7deg);
  border: 1px solid #b9d2ef;
  border-radius: 8px;
  background: linear-gradient(145deg, #fff, #eaf4ff);
  box-shadow: 0 30px 56px rgba(31,102,209,.14);
}

.campus-building i {
  position: absolute;
  bottom: 0;
  width: 58px;
  border: 1px solid rgba(31,102,209,.16);
  border-bottom: 0;
  border-radius: 7px 7px 0 0;
  background: linear-gradient(180deg, rgba(31,102,209,.08), rgba(255,255,255,.62));
}

.campus-building i:nth-child(1) { left: 30px; height: 150px; }
.campus-building i:nth-child(2) { left: 110px; height: 196px; }
.campus-building i:nth-child(3) { left: 190px; height: 120px; }

.campus-building b {
  position: absolute;
  width: 34px;
  height: 8px;
  border-radius: 999px;
  background: rgba(31,102,209,.16);
}

.campus-building b:nth-of-type(1) { left: 44px; top: 76px; }
.campus-building b:nth-of-type(2) { left: 44px; top: 108px; }
.campus-building b:nth-of-type(3) { left: 124px; top: 58px; }
.campus-building b:nth-of-type(4) { left: 124px; top: 96px; }
.campus-building b:nth-of-type(5) { left: 124px; top: 134px; }
.campus-building b:nth-of-type(6) { left: 204px; top: 128px; }

.campus-base {
  position: absolute;
  left: 50%;
  bottom: 104px;
  width: 420px;
  height: 86px;
  transform: translateX(-50%) skewX(-22deg);
  border: 1px solid #dbe7f4;
  border-radius: 8px;
  background: rgba(255,255,255,.74);
}

.campus-node {
  position: absolute;
  z-index: 3;
  display: grid;
  place-items: center;
  width: 78px;
  height: 44px;
  border: 1px solid var(--node-border, #cfe0ef);
  border-radius: 8px;
  background: rgba(255,255,255,.9);
  color: var(--node-color, #1f66d1);
  font-size: 14px;
  font-weight: 850;
  box-shadow: 0 14px 34px rgba(30,58,92,.08);
  animation: smart-node-float 7s ease-in-out infinite;
}

.node-people { left: 68px; top: 92px; }
.node-car { left: 58px; bottom: 126px; --node-color: #12806f; --node-border: #bfe5d8; }
.node-meeting { left: 240px; top: 58px; --node-color: #6b55d9; --node-border: #d9ccff; }
.node-device { right: 74px; top: 178px; --node-color: #2b69a8; --node-border: #c4d8f2; }
.node-energy { right: 88px; bottom: 116px; --node-color: #168468; --node-border: #bfe5d8; }
.node-service { left: 278px; bottom: 54px; --node-color: #b86f16; --node-border: #f3d7ac; }

.campus-line {
  position: absolute;
  z-index: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(31,102,209,.55), transparent);
  transform-origin: left center;
  animation: smart-line-pulse 4.8s ease-in-out infinite;
}

.line-1 { left: 144px; top: 122px; width: 220px; transform: rotate(25deg); }
.line-2 { left: 128px; bottom: 170px; width: 230px; transform: rotate(-16deg); }
.line-3 { right: 152px; top: 226px; width: 210px; transform: rotate(164deg); }
.line-4 { right: 160px; bottom: 154px; width: 260px; transform: rotate(194deg); }

.smart-section {
  padding: clamp(118px, 12vw, 176px) 0;
}

.smart-section:nth-of-type(odd) {
  background: #fff;
}

.smart-section-title {
  max-width: 900px;
  margin: 0 auto clamp(62px, 7vw, 96px);
  text-align: center;
}

.smart-section-title h2 {
  color: #14233d;
  font-size: clamp(31px, 3.3vw, 45px);
  line-height: 1.25;
  font-weight: 780;
}

.smart-section-title p {
  max-width: 760px;
  margin: 18px auto 0;
  color: #607187;
  font-size: 17px;
  line-height: 1.9;
}

.operation-lab,
.layer-map,
.smart-capability-shell,
.space-shell,
.smart-timeline,
.proof-grid {
  border: 1px solid #dbe7f4;
  border-radius: 8px;
  background: rgba(255,255,255,.9);
  box-shadow: 0 20px 52px rgba(30,58,92,.08);
}

.operation-lab {
  display: grid;
  grid-template-columns: minmax(270px, .72fr) 120px minmax(320px, .9fr);
  gap: 24px;
  align-items: center;
  padding: 30px;
}

.system-islands {
  position: relative;
  min-height: 330px;
  border: 1px dashed #cfe0ef;
  border-radius: 8px;
  background: linear-gradient(135deg, #f8fbff, #fff);
}

.system-islands span {
  position: absolute;
  display: grid;
  place-items: center;
  width: 100px;
  height: 58px;
  border: 1px solid #dbe7f4;
  border-radius: 8px;
  background: #fff;
  color: #53657c;
  font-weight: 850;
}

.system-islands span:nth-child(1) { left: 34px; top: 42px; }
.system-islands span:nth-child(2) { right: 36px; top: 74px; }
.system-islands span:nth-child(3) { left: 46%; top: 138px; transform: translateX(-50%); }
.system-islands span:nth-child(4) { left: 56px; bottom: 52px; }
.system-islands span:nth-child(5) { right: 44px; bottom: 44px; }

.operation-arrow {
  display: grid;
  place-items: center;
  min-height: 70px;
  border-radius: 999px;
  background: #eef6ff;
  color: #1f66d1;
  font-weight: 900;
}

.operation-core {
  min-height: 330px;
  padding: 34px;
  border: 1px solid #b9d2ef;
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(31,102,209,.1), rgba(255,255,255,.96)),
    #fff;
}

.operation-core strong {
  display: block;
  color: #14233d;
  font-size: 30px;
  line-height: 1.25;
}

.operation-core div {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 36px;
}

.operation-core span,
.operation-notes article {
  border: 1px solid #dbe7f4;
  border-radius: 8px;
  background: rgba(255,255,255,.84);
}

.operation-core span {
  padding: 18px;
  color: #1f66d1;
  font-weight: 850;
}

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

.operation-notes article {
  padding: 22px;
}

.operation-notes b {
  color: #14233d;
  font-size: 18px;
}

.operation-notes p {
  margin-top: 10px;
  color: #607187;
  line-height: 1.75;
}

.layer-map {
  display: grid;
  gap: 14px;
  padding: 26px;
  background:
    linear-gradient(135deg, rgba(31,102,209,.06), rgba(255,255,255,.96)),
    #fff;
}

.layer-map article {
  display: grid;
  grid-template-columns: 64px minmax(210px, .45fr) 1fr;
  align-items: center;
  gap: 22px;
  min-height: 92px;
  padding: 22px 26px;
  border: 1px solid #dbe7f4;
  border-radius: 8px;
  background: rgba(255,255,255,.88);
  transform: translateY(0);
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}

.layer-map article:hover {
  transform: translateY(-3px);
  border-color: #b9d2ef;
  box-shadow: 0 16px 36px rgba(30,58,92,.08);
}

.layer-map span {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: #eaf3ff;
  color: #1f66d1;
  font-weight: 900;
}

.layer-map b {
  color: #14233d;
  font-size: 20px;
}

.layer-map p {
  color: #607187;
  line-height: 1.7;
}

.smart-capability-shell {
  display: grid;
  grid-template-columns: 370px minmax(0, 1fr);
  gap: 24px;
  padding: 24px;
}

.smart-tabs {
  display: grid;
  gap: 10px;
  align-content: start;
}

.smart-tabs button {
  display: grid;
  grid-template-columns: 36px 1fr;
  align-items: center;
  gap: 12px;
  min-height: 62px;
  padding: 0 20px;
  border: 1px solid var(--tab-border, #dbe7f4);
  border-radius: 8px;
  background: linear-gradient(135deg, var(--tab-bg, #fff), #fff 86%);
  color: #53657c;
  font: inherit;
  font-weight: 850;
  text-align: left;
  cursor: pointer;
  transition: transform .22s ease, color .22s ease, border-color .22s ease, box-shadow .22s ease;
}

.smart-tabs button::before {
  content: "";
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255,255,255,.72), rgba(255,255,255,0)),
    var(--tab-color, #1f66d1);
  box-shadow: 0 8px 18px color-mix(in srgb, var(--tab-color, #1f66d1) 22%, transparent);
  mask:
    linear-gradient(#000 0 0) center / 15px 15px no-repeat,
    linear-gradient(#000 0 0);
  mask-composite: exclude;
}

.smart-tabs button:nth-child(1) { --tab-bg: #eef7ff; --tab-border: #c7def7; --tab-color: #1f66d1; }
.smart-tabs button:nth-child(2) { --tab-bg: #f5f1ff; --tab-border: #d9ccff; --tab-color: #6b55d9; }
.smart-tabs button:nth-child(3) { --tab-bg: #fff6e8; --tab-border: #f3d7ac; --tab-color: #b86f16; }
.smart-tabs button:nth-child(4) { --tab-bg: #eefbf7; --tab-border: #bfe5d8; --tab-color: #168468; }
.smart-tabs button:nth-child(5) { --tab-bg: #f1f7ff; --tab-border: #c4d8f2; --tab-color: #2b69a8; }
.smart-tabs button:nth-child(6) { --tab-bg: #fff0f4; --tab-border: #efc4d0; --tab-color: #bd4966; }

.smart-tabs button:hover,
.smart-tabs button.active {
  color: var(--tab-color, #1f66d1);
  border-color: var(--tab-color, #1f66d1);
  transform: translateX(2px);
}

.smart-tabs button.active {
  box-shadow: inset 4px 0 0 var(--tab-color, #1f66d1), 0 14px 28px rgba(29,72,118,.09);
}

.smart-panels {
  position: relative;
  min-height: 520px;
  padding: clamp(38px, 4vw, 58px);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(31,102,209,.08), rgba(255,255,255,.98) 46%),
    #fff;
}

.smart-panel,
.space-panel {
  display: none;
}

.smart-panel.active,
.space-panel.active {
  display: block;
  animation: panel-in .34s ease both;
}

.smart-panel span {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  padding: 0 14px;
  border: 1px solid #bfd7f1;
  border-radius: 999px;
  background: #edf6ff;
  color: #1f66d1;
  font-size: 16px;
  font-weight: 900;
}

.smart-panel h3 {
  max-width: 780px;
  margin-top: 28px;
  color: #14233d;
  font-size: clamp(30px, 3vw, 42px);
  line-height: 1.25;
}

.smart-panel p {
  max-width: 760px;
  margin-top: 18px;
  color: #607187;
  font-size: 17px;
  line-height: 1.9;
}

.smart-mini-map {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 48px;
}

.smart-mini-map i {
  display: grid;
  place-items: center;
  min-height: 88px;
  border: 1px solid #dbe7f4;
  border-radius: 8px;
  background: rgba(255,255,255,.86);
  color: #315a87;
  font-style: normal;
  font-weight: 850;
}

.space-shell {
  display: grid;
  grid-template-columns: minmax(520px, .95fr) minmax(430px, .65fr);
  gap: 28px;
  padding: 28px;
}

.space-map {
  position: relative;
  min-height: 500px;
  border: 1px solid #dbe7f4;
  border-radius: 8px;
  background:
    linear-gradient(135deg, #f6faff, #fff),
    #fff;
  overflow: hidden;
}

.space-map-image {
  position: absolute;
  inset: 24px;
  z-index: 1;
  width: calc(100% - 48px);
  height: calc(100% - 48px);
  object-fit: contain;
}

.space-map:has(.space-map-image) {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  grid-template-rows: auto minmax(0, 1fr);
  column-gap: 12px;
  row-gap: 22px;
  padding: 24px;
}

.space-map:has(.space-map-image) .space-map-image {
  position: static;
  grid-column: 1 / -1;
  grid-row: 2;
  align-self: center;
  width: 100%;
  height: 342px;
  object-fit: contain;
}

.space-map:has(.space-map-image)::before {
  display: none;
}

.space-map::before {
  content: "";
  position: absolute;
  inset: 38px;
  border: 1px solid rgba(31,102,209,.12);
  border-radius: 8px;
  transform: rotate(-4deg);
}

.space-map button,
.map-core {
  position: absolute;
  z-index: 2;
  display: grid;
  place-items: center;
  border-radius: 8px;
  font-weight: 850;
}

.space-map button {
  min-width: 112px;
  min-height: 58px;
  padding: 0 16px;
  border: 1px solid #dbe7f4;
  background: rgba(255,255,255,.9);
  color: #53657c;
  font: inherit;
  cursor: pointer;
  transition: transform .22s ease, border-color .22s ease, color .22s ease, box-shadow .22s ease;
}

.space-map:has(.space-map-image) button {
  position: static;
  left: auto;
  right: auto;
  top: auto;
  bottom: auto;
  min-width: 0;
  min-height: 52px;
  opacity: 1;
  border: 1px solid var(--space-border, #dbe7f4);
  background: linear-gradient(135deg, var(--space-bg, #fff), #fff 86%);
  box-shadow: none;
  color: #53657c;
  font-size: 15px;
}

.space-map:has(.space-map-image) button:nth-of-type(1) {
  --space-bg: #eef7ff;
  --space-border: #c7def7;
  --space-color: #1f66d1;
}

.space-map:has(.space-map-image) button:nth-of-type(2) {
  --space-bg: #eefbf7;
  --space-border: #bfe5d8;
  --space-color: #168468;
}

.space-map:has(.space-map-image) button:nth-of-type(3) {
  --space-bg: #fff6e8;
  --space-border: #f3d7ac;
  --space-color: #b86f16;
}

.space-map:has(.space-map-image) button:nth-of-type(4) {
  --space-bg: #f5f1ff;
  --space-border: #d9ccff;
  --space-color: #6b55d9;
}

.space-map:has(.space-map-image) button:nth-of-type(5) {
  --space-bg: #f1f7ff;
  --space-border: #c4d8f2;
  --space-color: #2b69a8;
}

.space-map:has(.space-map-image) button.active,
.space-map:has(.space-map-image) button:hover {
  color: var(--space-color, #1f66d1);
  border-color: var(--space-color, #1f66d1);
  background: var(--space-bg, #eef6ff);
  box-shadow: inset 0 -3px 0 var(--space-color, #1f66d1), 0 12px 24px rgba(29,72,118,.08);
}

.space-map button.active,
.space-map button:hover {
  color: #1f66d1;
  border-color: #1f66d1;
  box-shadow: 0 16px 34px rgba(31,102,209,.12);
  transform: translateY(-2px);
}

.space-map button:nth-child(1) { left: 42%; top: 42px; }
.space-map button:nth-child(2) { left: 70px; top: 178px; }
.space-map button:nth-child(3) { right: 76px; top: 188px; }
.space-map button:nth-child(4) { left: 118px; bottom: 74px; }
.space-map button:nth-child(5) { right: 120px; bottom: 66px; }

.space-map:has(.space-map-image) button {
  position: static;
  left: auto;
  right: auto;
  top: auto;
  bottom: auto;
  transform: none;
}

.space-map:has(.space-map-image) button:hover {
  transform: translateY(-2px);
}

.map-core {
  left: 50%;
  top: 50%;
  width: 138px;
  height: 138px;
  border: 1px solid #b9d2ef;
  border-radius: 50%;
  background: #eef6ff;
  color: #1f66d1;
  transform: translate(-50%, -50%);
  font-size: 22px;
  line-height: 1.25;
}

.space-panels {
  min-height: 500px;
  padding: clamp(34px, 4vw, 50px);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(18,128,111,.08), rgba(255,255,255,.96) 48%),
    #fff;
}

.space-panel h3 {
  color: #14233d;
  font-size: 34px;
  line-height: 1.25;
}

.space-panel p {
  margin-top: 22px;
  color: #607187;
  font-size: 17px;
  line-height: 1.9;
}

.space-panel div {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 34px;
}

.space-panel span,
.smart-timeline i,
.proof-grid span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 11px;
  border: 1px solid #dbe7f4;
  border-radius: 999px;
  background: #f8fbff;
  color: #315a87;
  font-size: 14px;
  font-weight: 800;
  font-style: normal;
}

.smart-timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  padding: 26px;
}

.smart-timeline::before {
  content: "";
  position: absolute;
  left: 8%;
  right: 8%;
  top: 62px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(31,102,209,.32), transparent);
}

.smart-timeline article {
  position: relative;
  min-height: 330px;
  padding: 30px;
  border: 1px solid #dbe7f4;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 14px 34px rgba(30,58,92,.06);
}

.smart-timeline article > span {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: #eaf3ff;
  color: #1f66d1;
  font-weight: 900;
}

.smart-timeline h3 {
  margin-top: 54px;
  color: #14233d;
  font-size: 25px;
  line-height: 1.3;
}

.smart-timeline p {
  margin-top: 14px;
  color: #607187;
  line-height: 1.78;
}

.smart-timeline div {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  padding: 24px;
}

.proof-grid article {
  min-height: 350px;
  padding: 0 0 28px;
  border: 1px solid #dbe7f4;
  border-radius: 8px;
  background: #fff;
  overflow: hidden;
}

.proof-grid article img {
  display: block;
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-bottom: 1px solid #e3edf8;
}

.proof-grid article span,
.proof-grid article h3,
.proof-grid article p {
  margin-left: 28px;
  margin-right: 28px;
}

.proof-grid article span {
  margin-top: 24px;
}

.proof-grid h3 {
  margin-top: 22px;
  color: #14233d;
  font-size: 24px;
  line-height: 1.3;
}

.proof-grid p {
  margin-top: 14px;
  color: #607187;
  line-height: 1.8;
}

.smart-contact {
  margin-top: 24px;
}

.smart-contact strong {
  max-width: 860px;
  line-height: 1.75;
}

@keyframes smart-node-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-7px); }
}

@keyframes smart-line-pulse {
  0%, 100% { opacity: .36; }
  50% { opacity: .9; }
}

@media (max-width: 1120px) {
  .smart-hero-grid,
  .operation-lab,
  .smart-capability-shell,
  .space-shell {
    grid-template-columns: 1fr;
  }

  .operation-arrow {
    min-height: 48px;
  }

  .operation-notes,
  .smart-timeline,
  .proof-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  .smart-page .container {
    width: min(100% - 28px, 1500px);
  }

  .smart-hero {
    padding: 76px 0 88px;
  }

  .smart-hero-grid {
    gap: 42px;
  }

  .campus-visual {
    min-height: 460px;
  }

  .smart-section {
    padding: 84px 0;
  }

  .operation-notes,
  .operation-core div,
  .smart-mini-map,
  .smart-timeline,
  .proof-grid {
    grid-template-columns: 1fr;
  }

  .layer-map article {
    grid-template-columns: 1fr;
  }

  .smart-panels,
  .space-panels {
    padding: 26px;
  }

  .space-map {
    min-height: 430px;
  }

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

  .space-map:has(.space-map-image) .space-map-image {
    height: 270px;
  }

  .space-map button:nth-child(1) { left: 34%; top: 34px; }
  .space-map button:nth-child(2) { left: 22px; top: 156px; }
  .space-map button:nth-child(3) { right: 22px; top: 158px; }
  .space-map button:nth-child(4) { left: 30px; bottom: 56px; }
  .space-map button:nth-child(5) { right: 34px; bottom: 54px; }
}

.space-map:has(.space-map-image) button,
.space-map:has(.space-map-image) button:nth-child(n) {
  position: static;
  left: auto;
  right: auto;
  top: auto;
  bottom: auto;
}

/* Case studies page */
.case-page {
  background: #f5f9fd;
  color: #14233d;
}

.case-page .icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.case-page svg {
  width: 24px;
  height: 24px;
  stroke: currentColor;
  stroke-width: 1.9;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.case-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(96px, 10vw, 148px) 0 72px;
  background:
    linear-gradient(115deg, rgba(255,255,255,.98) 0%, rgba(246,251,255,.94) 44%, rgba(232,244,255,.72) 100%),
    #f6fbff;
}

.case-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(31,102,209,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31,102,209,.045) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}

.case-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(470px, .86fr) minmax(560px, 1.05fr);
  align-items: center;
  gap: clamp(42px, 6vw, 90px);
}

.case-hero-copy h1 {
  max-width: 720px;
  margin: 0;
  color: #13213a;
  font-size: clamp(38px, 4.25vw, 62px);
  line-height: 1.16;
  letter-spacing: 0;
}

.case-hero-copy p {
  max-width: 680px;
  margin: 24px 0 0;
  color: #586b82;
  font-size: 18px;
  line-height: 1.9;
}

.case-hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

.case-hero-points span {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid #d4e4f5;
  border-radius: 999px;
  background: rgba(255,255,255,.72);
  color: #315a87;
  font-weight: 850;
  box-shadow: 0 12px 30px rgba(30,58,92,.06);
}

.case-hero-points svg {
  width: 19px;
  height: 19px;
  color: #1f66d1;
}

.case-hero-visual {
  min-height: 520px;
  display: grid;
  place-items: center;
}

.case-hero-visual img {
  width: min(110%, 820px);
  height: auto;
  display: block;
  filter: drop-shadow(0 30px 55px rgba(31,83,135,.12));
}

.case-proof-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid #dbe7f4;
  border-bottom: 1px solid #dbe7f4;
  background: rgba(255,255,255,.92);
}

.case-proof-item {
  min-height: 108px;
  padding: 25px clamp(22px, 3vw, 54px);
  border-right: 1px solid #dbe7f4;
}

.case-proof-item:last-child {
  border-right: 0;
}

.case-proof-item strong {
  display: block;
  color: #1f66d1;
  font-size: 32px;
  line-height: 1.1;
}

.case-proof-item span {
  display: block;
  margin-top: 8px;
  color: #607187;
  font-size: 15px;
  line-height: 1.6;
}

.case-section {
  padding: clamp(96px, 9vw, 142px) 0;
}

.case-featured {
  background: #fff;
}

.home-featured-cases {
  background:
    linear-gradient(180deg, #eef6fc 0%, #f7fbff 46%, #eef6fc 100%);
}

.case-section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 48px;
  margin-bottom: 48px;
}

.case-section-head.centered {
  display: block;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.case-section-head.centered h2,
.case-section-head.centered p {
  margin-left: auto;
  margin-right: auto;
}

.case-section-head h2 {
  max-width: 760px;
  margin: 0;
  color: #14233d;
  font-size: clamp(34px, 3.4vw, 48px);
  line-height: 1.22;
  letter-spacing: 0;
}

.case-section-head p {
  max-width: 560px;
  margin: 16px 0 0;
  color: #607187;
  font-size: 17px;
  line-height: 1.9;
}

.case-section-head:not(.centered) p {
  margin-top: 0;
}

.case-feature-grid {
  display: grid;
  grid-template-columns: minmax(520px, .92fr) minmax(460px, .78fr);
  gap: 28px;
}

.case-major,
.case-mini-stack article,
.case-card,
.case-review-flow article,
.case-closing .container {
  border: 1px solid #dbe7f4;
  border-radius: 8px;
  background: rgba(255,255,255,.96);
  box-shadow: 0 18px 44px rgba(30,58,92,.06);
}

.case-major {
  overflow: hidden;
}

.case-major-visual {
  min-height: 288px;
  background:
    radial-gradient(circle at 18% 18%, rgba(29,111,215,.18), transparent 34%),
    linear-gradient(135deg, #eaf5ff, #f7fbff 55%, #eefaf6);
}

.case-major-visual img {
  display: block;
  width: 100%;
  height: 318px;
  object-fit: cover;
}

.case-major-body {
  padding: clamp(30px, 4vw, 48px);
}

.case-major-body > span,
.case-mini-stack span,
.case-card > span {
  color: #1f66d1;
  font-size: 14px;
  font-weight: 900;
}

.case-major h3 {
  margin: 18px 0 0;
  color: #14233d;
  font-size: clamp(28px, 2.8vw, 38px);
  line-height: 1.25;
}

.case-major p {
  margin: 18px 0 0;
  color: #607187;
  font-size: 17px;
  line-height: 1.9;
}

.case-flow {
  display: grid;
  grid-template-columns: auto 1fr auto 1fr auto 1fr auto;
  align-items: center;
  gap: 10px;
  margin-top: 28px;
}

.case-flow i {
  display: grid;
  place-items: center;
  min-height: 36px;
  padding: 0 13px;
  border: 1px solid #cfe1f5;
  border-radius: 999px;
  background: #f6fbff;
  color: #315a87;
  font-size: 13px;
  font-style: normal;
  font-weight: 850;
}

.case-flow b {
  height: 1px;
  background: linear-gradient(90deg, rgba(31,102,209,.18), rgba(31,102,209,.6));
}

.case-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 34px;
}

.case-metrics strong {
  color: #1f66d1;
  font-size: 31px;
  line-height: 1.2;
}

.case-metrics small {
  display: block;
  margin-top: 6px;
  color: #607187;
  font-size: 13px;
  font-weight: 750;
}

.case-mini-stack {
  display: grid;
  gap: 18px;
}

.case-mini-stack article {
  display: grid;
  grid-template-columns: 68px 1fr;
  gap: 22px;
  align-items: start;
  min-height: 150px;
  padding: 28px;
}

.case-mini-stack svg {
  width: 58px;
  height: 58px;
  padding: 16px;
  border-radius: 18px;
  background: #eef6ff;
  color: #1f66d1;
}

.home-featured-cases .case-mini-stack svg {
  stroke: currentColor;
  stroke-width: 1.9;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.case-mini-stack h3,
.case-card h3 {
  margin: 11px 0 0;
  color: #14233d;
  font-size: 24px;
  line-height: 1.32;
}

.case-mini-stack p,
.case-card p {
  margin: 12px 0 0;
  color: #607187;
  line-height: 1.78;
}

.case-catalog {
  background:
    linear-gradient(180deg, #eef6fc, #f7fbff 42%, #eef6fc);
}

.case-filter {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 36px;
}

.case-filter button {
  min-height: 44px;
  padding: 0 20px;
  border: 1px solid #cfe1f5;
  border-radius: 999px;
  background: rgba(255,255,255,.9);
  color: #53657c;
  font: inherit;
  font-weight: 850;
  cursor: pointer;
  transition: color .22s ease, border-color .22s ease, background .22s ease, box-shadow .22s ease, transform .22s ease;
}

.case-filter button.active,
.case-filter button:hover {
  border-color: #1f66d1;
  background: #eaf3ff;
  color: #1f66d1;
  box-shadow: 0 14px 28px rgba(31,102,209,.1);
  transform: translateY(-1px);
}

.case-card-board {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.case-card {
  min-height: 420px;
  padding: 0;
  overflow: hidden;
  transition: transform .24s ease, opacity .2s ease, box-shadow .24s ease;
}

.case-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 22px 48px rgba(30,58,92,.09);
}

.case-card.is-hidden {
  display: none;
}

.case-card-wide {
  grid-column: span 2;
  background:
    linear-gradient(135deg, rgba(31,102,209,.12), rgba(255,255,255,.98) 48%),
    #fff;
}

.case-card-image {
  position: relative;
  height: 168px;
  margin: 0;
  overflow: hidden;
  background:
    radial-gradient(circle at 20% 18%, rgba(31,102,209,.14), transparent 34%),
    linear-gradient(135deg, #eef6ff, #f9fcff);
  border-bottom: 1px solid #e3edf8;
}

.case-card-wide .case-card-image {
  height: 208px;
}

.case-card-image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .42s ease;
}

.case-card:hover .case-card-image img {
  transform: scale(1.035);
}

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

.case-card-soft {
  background:
    linear-gradient(135deg, rgba(22,132,104,.11), rgba(255,255,255,.98) 54%),
    #fff;
}

.case-card-icon {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  margin-bottom: 24px;
  border-radius: 20px;
}

.case-card-icon svg {
  width: 31px;
  height: 31px;
}

.case-card-icon.blue { background: #eaf3ff; color: #1f66d1; }
.case-card-icon.teal { background: #eafaf7; color: #168468; }
.case-card-icon.amber { background: #fff5e7; color: #b86f16; }
.case-card-icon.cyan { background: #e9fbff; color: #16849a; }
.case-card-icon.violet { background: #f2efff; color: #6556d8; }

.case-card .case-card-body > div:last-child {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.case-card i {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border: 1px solid #d6e5f5;
  border-radius: 999px;
  background: #f8fbff;
  color: #315a87;
  font-size: 13px;
  font-style: normal;
  font-weight: 800;
}

.case-review {
  background: #fff;
}

.case-review .case-section-head {
  max-width: 820px;
  margin-bottom: 54px;
}

.case-review .case-section-head h2 {
  max-width: 720px;
  font-size: clamp(32px, 3vw, 44px);
  line-height: 1.28;
}

.case-review .case-section-head p {
  max-width: 680px;
  margin-top: 18px;
}

.case-review-flow {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
  counter-reset: review;
}

.case-review-flow article {
  position: relative;
  min-height: 260px;
  padding: 28px;
}

.case-review-flow article:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 52px;
  right: -17px;
  width: 18px;
  height: 1px;
  background: #8fb8e6;
}

.case-review-flow span {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #eaf3ff;
  color: #1f66d1;
  font-weight: 900;
}

.case-review-flow h3 {
  margin: 48px 0 0;
  color: #14233d;
  font-size: 22px;
}

.case-review-flow p {
  margin: 14px 0 0;
  color: #607187;
  line-height: 1.8;
}

.case-closing {
  padding: 0 0 96px;
  background: #fff;
}

.case-closing .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  min-height: 92px;
  padding: 20px 26px 20px 32px;
  background:
    linear-gradient(90deg, rgba(31,102,209,.08), rgba(22,132,104,.07)),
    #f8fbff;
}

.case-closing strong {
  color: #1f66d1;
  font-size: 20px;
  line-height: 1.6;
}

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

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

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

  .case-review-flow article:not(:last-child)::after {
    display: none;
  }
}

@media (max-width: 820px) {
  .case-hero {
    padding: 82px 0 62px;
  }

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

  .case-hero-copy h1 {
    font-size: 38px;
  }

  .case-hero-visual {
    min-height: 330px;
  }

  .case-proof-strip,
  .case-card-board,
  .case-review-flow,
  .case-metrics {
    grid-template-columns: 1fr;
  }

  .case-proof-item {
    border-right: 0;
    border-bottom: 1px solid #dbe7f4;
  }

  .case-section-head {
    display: block;
  }

  .case-section-head:not(.centered) p {
    margin-top: 16px;
  }

  .case-card-wide {
    grid-column: span 1;
  }

  .case-flow {
    grid-template-columns: 1fr;
  }

  .case-flow b {
    display: none;
  }

  .case-mini-stack article {
    grid-template-columns: 1fr;
  }

  .case-closing .container {
    display: grid;
  }
}

/* ========== 面包屑导航 ========== */
.breadcrumb {
  padding: 0.75rem 0;
  font-size: 0.8125rem;
  color: #64748b;
  line-height: 1;
}
.breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin: 0;
  padding: 0;
}
.breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
}
.breadcrumb li + li::before {
  content: "/";
  color: #94a3b8;
  font-size: 0.75rem;
}
.breadcrumb a {
  color: #6366f1;
  text-decoration: none;
}
.breadcrumb a:hover {
  text-decoration: underline;
}
.breadcrumb [aria-current="page"] {
  color: #1e293b;
  font-weight: 500;
}