:root {
  color-scheme: light;
  --ink: #1d1d1f;
  --muted: #6e6e73;
  --soft: #f5f5f7;
  --line: rgba(29, 29, 31, .11);
  --blue: #0071e3;
  --green: #0b8f68;
  --font: Inter, "Noto Sans SC", "Microsoft YaHei", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: #fbfbfd;
  color: var(--ink);
  font-family: var(--font);
}

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

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  min-height: 76px;
  align-items: center;
  gap: 28px;
  padding: 0 clamp(20px, 4vw, 64px);
  border-bottom: 1px solid rgba(29, 29, 31, .06);
  background: rgba(251, 251, 253, .92);
  backdrop-filter: blur(14px);
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
}

.site-brand img {
  width: 34px;
  height: 34px;
  border-radius: 7px;
  object-fit: contain;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(18px, 2vw, 32px);
}

.site-nav a {
  padding: 27px 0;
  color: #4a4a4d;
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
  white-space: nowrap;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--ink);
}

.site-nav a[aria-current="page"] {
  font-weight: 850;
}

.site-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-cta {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
}

.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: 50%;
  background: #ececef;
  color: var(--ink);
  font-size: 21px;
  cursor: pointer;
}

.page-main {
  min-height: calc(100vh - 76px);
  padding: clamp(72px, 9vw, 132px) clamp(20px, 6vw, 86px) 110px;
}

.shell {
  width: min(1240px, 100%);
  margin: 0 auto;
}

.page-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, .55fr);
  gap: clamp(32px, 7vw, 100px);
  align-items: end;
  margin-bottom: clamp(52px, 7vw, 88px);
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--blue);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .12em;
}

.page-title {
  max-width: 860px;
  margin: 0;
  font-size: clamp(42px, 6vw, 76px);
  font-weight: 650;
  line-height: 1.02;
  letter-spacing: 0;
}

.page-lead {
  margin: 0 0 5px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.72;
}

.insights-page .page-main {
  padding-top: clamp(56px, 6vw, 84px);
}

.insights-page .shell {
  width: min(1120px, 100%);
}

.insights-intro {
  grid-template-columns: repeat(2, minmax(0, 390px));
  width: min(812px, 100%);
  margin-right: auto;
  margin-left: auto;
  gap: 32px;
  align-items: center;
  margin-bottom: clamp(42px, 5vw, 64px);
}

.insights-intro .page-title {
  font-size: clamp(38px, 4vw, 52px);
  font-weight: 560;
  text-align: right;
  white-space: nowrap;
}

.insights-intro .page-lead {
  margin: 3px 0 0;
  font-size: 14px;
  line-height: 1.65;
}

.article-grid,
.case-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(28px, 4vw, 52px);
}

.article-card,
.case-card {
  display: block;
  min-width: 0;
  color: var(--ink);
  text-decoration: none;
}

.card-media {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-radius: 6px;
  background: #e8ebee;
}

.card-media img,
.card-media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .35s ease;
}

a.article-card:hover .card-media img,
a.case-card:hover .card-media img {
  transform: scale(1.018);
}

.card-meta {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-top: 18px;
  color: #86868b;
  font-size: 12px;
  font-weight: 600;
}

.card-meta > * + *::before {
  content: "·";
  margin-right: 10px;
  color: #c2c2c7;
}

.article-card h2,
.case-card h2 {
  margin: 12px 0 8px;
  font-size: clamp(21px, 2.2vw, 30px);
  font-weight: 650;
  line-height: 1.22;
}

.article-card p,
.case-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

.read-link {
  display: inline-block;
  margin-top: 15px;
  color: #515154;
  font-size: 12px;
  font-weight: 750;
}

a.article-card:hover h2,
a.article-card:hover .read-link,
a.case-card:hover h2,
a.case-card:hover .read-link {
  color: var(--blue);
}

.is-upcoming {
  opacity: .76;
}

.product-hero {
  display: grid;
  grid-template-columns: minmax(340px, .72fr) minmax(0, 1.28fr);
  gap: clamp(42px, 7vw, 104px);
  align-items: center;
}

.product-hero .page-title {
  font-size: clamp(42px, 5vw, 66px);
}

.product-copy .page-lead {
  margin-top: 26px;
}

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

.button,
.button-secondary {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 0 19px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
}

.button {
  background: var(--ink);
  color: #fff;
}

.button-secondary {
  border: 1px solid var(--line);
  background: #fff;
}

.product-media {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 24px 64px rgba(29, 29, 31, .09);
}

.product-media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 84px;
  border-top: 1px solid var(--line);
}

.capability {
  padding: 25px 25px 0 0;
}

.capability + .capability {
  padding-left: 25px;
  border-left: 1px solid var(--line);
}

.capability span {
  color: var(--green);
  font-size: 11px;
  font-weight: 850;
}

.capability h2 {
  margin: 11px 0 8px;
  font-size: 19px;
}

.capability p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(300px, .72fr) minmax(0, 1.28fr);
  gap: clamp(44px, 8vw, 112px);
  align-items: start;
}

.contact-copy .page-title {
  font-size: clamp(42px, 5vw, 66px);
}

.contact-copy .page-lead {
  margin-top: 26px;
}

.contact-points {
  display: grid;
  gap: 12px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

.contact-points li {
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 14px;
}

.contact-form {
  display: grid;
  gap: 18px;
  padding: clamp(26px, 4vw, 46px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

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

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

.field label {
  color: #6e6e73;
  font-size: 12px;
  font-weight: 700;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid rgba(29, 29, 31, .14);
  border-radius: 6px;
  background: #fff;
  color: var(--ink);
  font: inherit;
}

.field textarea {
  min-height: 112px;
  resize: vertical;
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.form-submit {
  min-height: 44px;
  padding: 0 20px;
  border: 0;
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  font: inherit;
  font-size: 13px;
  font-weight: 800;
  cursor: pointer;
}

.form-status {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.form-status.ok {
  color: #16833a;
}

.form-status.error {
  color: #bf3151;
}

.site-footer {
  padding: 50px clamp(20px, 6vw, 86px);
  border-top: 1px solid var(--line);
  background: #fff;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(260px, 1.5fr) repeat(3, minmax(120px, .5fr));
  gap: 36px;
}

.footer-brand p {
  max-width: 480px;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.footer-column {
  display: grid;
  align-content: start;
  gap: 9px;
}

.footer-column strong,
.footer-brand strong {
  font-size: 13px;
}

.footer-column a {
  color: var(--muted);
  font-size: 12px;
  text-decoration: none;
}

.footer-column a:hover {
  color: var(--blue);
}

@media (max-width: 860px) {
  .site-header {
    grid-template-columns: auto auto;
    min-height: 68px;
    justify-content: space-between;
  }

  .menu-toggle {
    display: grid;
    place-items: center;
  }

  .site-actions .site-cta {
    display: none;
  }

  .site-nav {
    position: absolute;
    top: 68px;
    right: 16px;
    left: 16px;
    display: none;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 18px 46px rgba(29, 29, 31, .14);
  }

  .site-nav.is-open {
    display: grid;
  }

  .site-nav a {
    padding: 13px 12px;
  }

  .page-main {
    min-height: 0;
    padding-top: 64px;
    padding-bottom: 76px;
  }

  .page-intro,
  .product-hero,
  .contact-layout,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .insights-intro {
    width: 100%;
    gap: 18px;
    margin-bottom: 40px;
  }

  .insights-intro .page-title {
    font-size: 38px;
    text-align: left;
    white-space: normal;
  }

  .page-title,
  .product-hero .page-title,
  .contact-copy .page-title {
    font-size: 40px;
  }

  .article-grid,
  .case-grid,
  .form-row {
    grid-template-columns: 1fr;
  }

  .article-grid,
  .case-grid {
    gap: 44px;
  }

  .capability-grid {
    grid-template-columns: 1fr;
    margin-top: 58px;
  }

  .capability,
  .capability + .capability {
    padding: 21px 0;
    border-bottom: 1px solid var(--line);
    border-left: 0;
  }
}

@media (max-width: 520px) {
  .site-brand span {
    display: none;
  }

  .page-title,
  .product-hero .page-title,
  .contact-copy .page-title {
    font-size: 34px;
  }
}