:root {
  --blue: #243c86;
  --blue-dark: #172a66;
  --orange: #f28a18;
  --green: #25a86a;
  --ink: #1e2430;
  --muted: #667085;
  --line: #dde3ea;
  --soft: #f5f7fa;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.6;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(221, 227, 234, 0.9);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
}

.nav {
  display: flex;
  width: min(1180px, calc(100% - 40px));
  min-height: 72px;
  margin: 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 220px;
}

.brand img {
  width: 190px;
  height: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 26px;
  font-size: 15px;
  color: #303847;
  white-space: nowrap;
}

.nav-links a {
  padding: 8px 0;
}

.nav-links a:hover {
  color: var(--blue);
}

.nav-cta {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  padding: 0 18px;
  color: var(--white);
  background: var(--blue);
  font-weight: 700;
}

.nav-cta:hover {
  background: var(--orange);
  color: var(--white);
}

.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.99) 0%, rgba(255, 255, 255, 0.97) 45%, rgba(255, 255, 255, 0.72) 62%, rgba(255, 255, 255, 0.22) 100%),
    url("cases/pipeline-workshop-green.jpg") 62% center / cover no-repeat;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  width: min(1180px, calc(100% - 40px));
  min-height: calc(100vh - 72px);
  margin: 0 auto;
  align-items: center;
  padding: 70px 0 54px;
}

.hero-copy {
  width: min(680px, 100%);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  color: var(--blue);
  font-size: 15px;
  font-weight: 700;
}

.eyebrow::before {
  width: 34px;
  height: 4px;
  border-radius: 4px;
  background: var(--orange);
  content: "";
}

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

h1 {
  max-width: 680px;
  color: var(--ink);
  font-size: clamp(38px, 5vw, 68px);
  line-height: 1.08;
  font-weight: 900;
  letter-spacing: 0;
}

.hero-subtitle {
  max-width: 620px;
  margin-top: 24px;
  color: #475467;
  font-size: 19px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  padding: 0 22px;
  border: 1px solid var(--blue);
  font-weight: 800;
}

.button.primary {
  color: var(--white);
  background: var(--blue);
}

.button.secondary {
  color: var(--blue);
  background: rgba(255, 255, 255, 0.9);
}

.button.primary:hover {
  border-color: var(--orange);
  background: var(--orange);
}

.button.secondary:hover {
  border-color: var(--orange);
  color: var(--orange);
}

.hero-metrics {
  display: grid;
  width: min(760px, 100%);
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin-top: 58px;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--line);
}

.metric {
  min-height: 96px;
  padding: 18px 16px;
  background: rgba(255, 255, 255, 0.92);
}

.metric strong {
  display: block;
  color: var(--blue);
  font-size: 25px;
  line-height: 1.1;
}

.metric span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
}

section {
  padding: 82px 0;
}

.band {
  background: var(--soft);
}

.container {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 34px;
}

.section-kicker {
  color: var(--orange);
  font-size: 14px;
  font-weight: 900;
  text-transform: uppercase;
}

h2 {
  margin-top: 6px;
  color: var(--ink);
  font-size: clamp(30px, 3.2vw, 44px);
  line-height: 1.15;
  letter-spacing: 0;
}

.section-lead {
  max-width: 440px;
  color: var(--muted);
  font-size: 16px;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--white);
}

.value-item {
  min-height: 136px;
  padding: 24px 18px;
  border-right: 1px solid var(--line);
}

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

.value-index {
  display: block;
  color: var(--orange);
  font-size: 14px;
  font-weight: 900;
}

.value-item h3 {
  margin-top: 14px;
  color: var(--blue);
  font-size: 19px;
  line-height: 1.25;
}

.value-item p {
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
}

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

.photo-frame {
  position: relative;
  overflow: hidden;
  background: #edf1f5;
}

.photo-frame::after {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.12), rgba(23, 42, 102, 0.05));
  content: "";
}

.solution-card {
  display: flex;
  min-height: 420px;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--white);
  box-shadow: 0 16px 36px rgba(16, 24, 40, 0.06);
}

.solution-card .photo-frame {
  aspect-ratio: 4 / 3;
}

.solution-card img,
.case-visual img,
.case-card img,
.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  background: var(--soft);
  filter: saturate(1.08) contrast(1.04) brightness(1.03);
}

.image-focus-top {
  object-position: center 24%;
}

.image-focus-left {
  object-position: 34% center;
}

.image-focus-right {
  object-position: 68% center;
}

.image-focus-low {
  object-position: center 62%;
}

.solution-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 22px;
}

.solution-body h3 {
  color: var(--blue);
  font-size: 22px;
  line-height: 1.2;
}

.solution-body p {
  margin-top: 12px;
  color: var(--muted);
  font-size: 15px;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
  padding-top: 20px;
}

.tag {
  border: 1px solid rgba(36, 60, 134, 0.18);
  border-radius: 6px;
  padding: 5px 9px;
  color: var(--blue);
  background: #f7f9ff;
  font-size: 13px;
}

.flow {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  gap: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--white);
}

.flow-step {
  position: relative;
  min-height: 150px;
  padding: 22px 16px;
  border-right: 1px solid var(--line);
}

.flow-step:last-child {
  border-right: 0;
}

.flow-step::before {
  display: inline-flex;
  width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--white);
  background: var(--blue);
  font-size: 13px;
  font-weight: 900;
  content: attr(data-step);
}

.flow-step h3 {
  margin-top: 16px;
  color: var(--ink);
  font-size: 18px;
}

.flow-step p {
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
}

.case-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.16fr) minmax(340px, 0.84fr);
  gap: 32px;
  align-items: stretch;
}

.case-visual {
  min-height: 520px;
  border: 1px solid rgba(36, 60, 134, 0.12);
  border-radius: 8px;
  overflow: hidden;
  background: var(--white);
  box-shadow: 0 22px 46px rgba(16, 24, 40, 0.12);
}

.case-visual img {
  min-height: 100%;
}

.case-panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-left: 5px solid var(--blue);
  padding: 34px;
  background: var(--white);
  box-shadow: 0 16px 34px rgba(16, 24, 40, 0.06);
}

.case-panel h3 {
  color: var(--blue);
  font-size: 30px;
  line-height: 1.2;
}

.case-panel p {
  margin-top: 16px;
  color: var(--muted);
}

.case-points {
  display: grid;
  gap: 12px;
  margin-top: 28px;
}

.case-point {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px 16px;
  background: var(--soft);
  font-weight: 800;
}

.case-gallery {
  margin-top: 24px;
}

.case-rail {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(260px, 32%);
  gap: 16px;
  overflow-x: auto;
  padding: 4px 2px 12px;
  scroll-snap-type: x mandatory;
  scrollbar-color: rgba(36, 60, 134, 0.36) transparent;
}

.case-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 14px 30px rgba(16, 24, 40, 0.07);
  scroll-snap-align: start;
}

.case-card img {
  aspect-ratio: 4 / 3;
  transition: transform 0.28s ease;
}

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

.case-card span {
  display: block;
  min-height: 50px;
  padding: 13px 15px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 900;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
}

.product-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--white);
}

.product-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  object-position: center;
  background: var(--soft);
}

.product-card h3 {
  padding: 16px 16px 6px;
  color: var(--blue);
  font-size: 18px;
  line-height: 1.25;
}

.product-card p {
  padding: 0 16px 18px;
  color: var(--muted);
  font-size: 14px;
}

.about {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 42px;
  align-items: center;
}

.about-image {
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--line);
}

.about-image img {
  width: 100%;
  min-height: 390px;
  object-fit: cover;
  object-position: center;
}

.about-copy p {
  color: var(--muted);
  font-size: 17px;
}

.clients-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.client-card {
  display: grid;
  min-height: 126px;
  align-content: center;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px 20px;
  background: var(--white);
  box-shadow: 0 14px 30px rgba(16, 24, 40, 0.06);
}

.client-card img {
  width: 100%;
  height: 58px;
  object-fit: contain;
  object-position: center;
}

.client-card strong {
  display: block;
  color: var(--blue);
  font-size: 15px;
  line-height: 1.25;
  text-align: center;
}

.capabilities {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
}

.capability {
  border-top: 4px solid var(--orange);
  padding: 18px;
  background: var(--soft);
}

.capability strong {
  display: block;
  color: var(--blue);
  font-size: 18px;
}

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

.contact {
  color: var(--white);
  background: var(--blue-dark);
}

.contact .section-kicker,
.contact h2,
.contact .section-lead {
  color: var(--white);
}

.contact-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 28px;
}

.contact-showcase {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.85fr);
  gap: 18px;
  margin-bottom: 28px;
}

.contact-visual,
.contact-visual-stack {
  min-width: 0;
}

.contact-visual {
  overflow: hidden;
  margin: 0;
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 24px 60px rgba(0, 16, 58, 0.22);
}

.contact-visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.contact-visual-main {
  aspect-ratio: 1619 / 971;
}

.contact-visual-stack {
  display: grid;
  gap: 18px;
}

.contact-visual-stack .contact-visual {
  aspect-ratio: 1619 / 971;
}

.contact-box {
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  padding: 28px;
  background: rgba(255, 255, 255, 0.06);
}

.contact-box h3 {
  margin-bottom: 16px;
  font-size: 22px;
}

.contact-list {
  display: grid;
  gap: 12px;
  color: rgba(255, 255, 255, 0.86);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.form-grid label {
  display: grid;
  gap: 6px;
  color: rgba(255, 255, 255, 0.84);
  font-size: 14px;
}

.form-grid .wide {
  grid-column: 1 / -1;
}

.form-honey {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

input,
textarea,
select {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 6px;
  padding: 12px 13px;
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
  font: inherit;
}

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

input::placeholder,
textarea::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

select option {
  color: var(--ink);
}

.submit {
  width: 100%;
  min-height: 48px;
  border: 0;
  border-radius: 6px;
  color: var(--white);
  background: var(--orange);
  font: inherit;
  font-weight: 900;
  cursor: pointer;
}

.submit:hover {
  background: #ff9a2b;
}

.footer {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 24px 0;
  color: rgba(255, 255, 255, 0.72);
  background: var(--blue-dark);
  font-size: 14px;
}

.footer-inner {
  display: flex;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  justify-content: space-between;
  gap: 20px;
}

@media (max-width: 1040px) {
  .nav {
    flex-wrap: wrap;
    padding: 14px 0;
  }

  .nav-links {
    width: 100%;
    justify-content: space-between;
    gap: 14px;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .hero-inner {
    min-height: auto;
    padding-top: 80px;
  }

  .hero-metrics,
  .value-grid,
  .solutions,
  .flow,
  .products-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .value-item,
  .flow-step {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .case-layout,
  .about,
  .contact-layout,
  .contact-showcase {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 700px) {
  .nav {
    width: min(100% - 28px, 1180px);
  }

  .brand img {
    width: 164px;
  }

  .nav-cta {
    display: none;
  }

  .hero {
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.99) 0%, rgba(255, 255, 255, 0.92) 52%, rgba(255, 255, 255, 0.72) 100%),
      url("cases/pipeline-workshop-green.jpg") 58% center / cover no-repeat;
  }

  .hero-inner,
  .container,
  .footer-inner {
    width: min(100% - 28px, 1180px);
  }

  h1 {
    font-size: 40px;
  }

  .hero-subtitle {
    font-size: 16px;
  }

  .hero-metrics,
  .value-grid,
  .solutions,
  .flow,
    .products-grid,
    .clients-grid,
    .capabilities,
    .form-grid {
    grid-template-columns: 1fr;
  }

  section {
    padding: 58px 0;
  }

  .section-head,
  .footer-inner {
    display: block;
  }

  .section-lead {
    margin-top: 14px;
  }

  .solution-card {
    min-height: auto;
  }

  .case-visual {
    min-height: 320px;
  }

  .case-rail {
    grid-auto-columns: minmax(230px, 86%);
  }

  .case-panel,
  .contact-box {
    padding: 22px;
  }

  .contact-visual-stack {
    grid-template-columns: 1fr;
  }
}