:root {
  color-scheme: light;
  --ink: #152033;
  --muted: #667085;
  --line: #d9e0e8;
  --paper: #f7f9fb;
  --white: #ffffff;
  --trade: #0f6b5f;
  --trade-deep: #173f46;
  --brand: #c33b35;
  --brand-deep: #29253a;
  --gold: #c99a42;
  --shadow: 0 18px 45px rgba(22, 32, 51, 0.12);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
}

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

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

.site-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 0 clamp(20px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.88);
  border-bottom: 1px solid rgba(217, 224, 232, 0.8);
  backdrop-filter: blur(18px);
}

.brand-mark {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 760;
  letter-spacing: 0;
}

.brand-mark img {
  width: 148px;
  height: auto;
  max-height: 50px;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.3vw, 28px);
  color: #344054;
  font-size: 14px;
}

.nav-links a {
  white-space: nowrap;
}

.nav-links .nav-cta {
  padding: 10px 16px;
  border-radius: 6px;
  color: var(--white);
  background: var(--accent);
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.lang-switch button {
  min-width: 42px;
  height: 32px;
  border: 0;
  border-radius: 6px;
  color: #475467;
  background: transparent;
  cursor: pointer;
  font: inherit;
  font-size: 13px;
  font-weight: 720;
}

.lang-switch button.active {
  color: var(--white);
  background: var(--accent);
}

.hero {
  position: relative;
  min-height: calc(100vh - 72px);
  display: grid;
  align-items: center;
  overflow: hidden;
  color: var(--white);
  background: #121926;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(11, 22, 35, 0.88), rgba(11, 22, 35, 0.54) 48%, rgba(11, 22, 35, 0.2));
  z-index: 1;
}

.hero-art {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(1040px, calc(100% - 40px));
  margin: 0 auto;
  padding: 72px 0 120px;
}

.eyebrow {
  margin: 0 0 18px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(42px, 7vw, 84px);
  line-height: 0.98;
  letter-spacing: 0;
}

.hero p {
  max-width: 680px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.84);
  font-size: clamp(17px, 2vw, 22px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 46px;
  padding: 12px 18px;
  border-radius: 6px;
  font-weight: 720;
}

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

.button.secondary {
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.next-strip {
  position: absolute;
  left: 50%;
  bottom: 0;
  z-index: 3;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  width: min(1040px, calc(100% - 40px));
  transform: translateX(-50%);
  background: var(--white);
  box-shadow: var(--shadow);
}

.next-strip div {
  min-height: 96px;
  padding: 22px;
  color: var(--ink);
  border-right: 1px solid var(--line);
}

.next-strip div:last-child {
  border-right: 0;
}

.next-strip strong {
  display: block;
  margin-bottom: 5px;
  font-size: 20px;
}

.next-strip span {
  color: var(--muted);
  font-size: 14px;
}

section {
  padding: clamp(64px, 8vw, 112px) clamp(20px, 5vw, 72px);
}

.section-inner {
  width: min(1120px, 100%);
  margin: 0 auto;
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(260px, 0.7fr);
  gap: 48px;
  align-items: end;
  margin-bottom: 42px;
}

.section-head h2 {
  margin: 0;
  font-size: clamp(30px, 4.5vw, 54px);
  line-height: 1.08;
  letter-spacing: 0;
}

.section-head p {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

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

.card {
  overflow: hidden;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.card.with-image {
  padding: 0;
}

.card.with-image img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.card-body {
  padding: 26px;
}

.card h3 {
  margin: 0 0 12px;
  font-size: 21px;
}

.card p {
  margin: 0;
  color: var(--muted);
}

.card ul {
  margin: 16px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

.card li + li {
  margin-top: 6px;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.metric {
  padding: 24px;
  border-radius: 8px;
  color: var(--white);
  background: var(--deep);
}

.metric strong {
  display: block;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1;
}

.metric span {
  display: block;
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.78);
}

.feature-band {
  color: var(--white);
  background: var(--deep);
}

.feature-layout {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 48px;
  align-items: center;
}

.feature-layout h2 {
  margin: 0 0 18px;
  font-size: clamp(30px, 4.5vw, 52px);
  line-height: 1.08;
}

.feature-layout p {
  margin: 0;
  color: rgba(255, 255, 255, 0.76);
}

.visual-panel {
  min-height: 420px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 22px 55px rgba(0, 0, 0, 0.25);
}

.visual-panel img {
  width: 100%;
  height: 100%;
  min-height: 420px;
  object-fit: cover;
}

.image-mosaic {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 12px;
}

.image-mosaic img {
  width: 100%;
  height: 100%;
  min-height: 202px;
  border-radius: 8px;
  object-fit: cover;
}

.image-mosaic img:first-child {
  grid-row: span 2;
  min-height: 420px;
}

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

.case-card {
  position: relative;
  min-height: 320px;
  overflow: hidden;
  border-radius: 8px;
  color: var(--white);
  background: #111827;
}

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

.case-card img {
  width: 100%;
  height: 100%;
  min-height: 320px;
  object-fit: cover;
  opacity: 0.88;
  transition: transform 0.35s ease;
}

.case-card:hover img {
  transform: scale(1.04);
}

.case-card div {
  position: absolute;
  inset: auto 0 0;
  padding: 22px;
  background: linear-gradient(180deg, rgba(17, 24, 39, 0), rgba(17, 24, 39, 0.88));
}

.case-card b {
  display: block;
  margin-bottom: 5px;
  font-size: 18px;
}

.case-card span {
  color: rgba(255, 255, 255, 0.75);
  font-size: 14px;
}

.steps {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}

.step {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 16px;
  align-items: start;
}

.step b {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 6px;
  color: var(--deep);
  background: var(--white);
}

.step strong {
  display: block;
  margin-bottom: 4px;
}

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

.logo-tile {
  display: grid;
  place-items: center;
  min-height: 110px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: #475467;
  background: var(--white);
  font-weight: 800;
  text-align: center;
}

.contact {
  color: var(--white);
  background: #111827;
}

.contact .section-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.7fr);
  gap: 42px;
  align-items: center;
}

.contact h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.08;
}

.contact p {
  margin: 16px 0 0;
  color: rgba(255, 255, 255, 0.72);
}

.contact-form {
  display: grid;
  gap: 12px;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.contact-form label {
  display: grid;
  gap: 6px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 13px;
  font-weight: 700;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 6px;
  padding: 12px 13px;
  color: var(--white);
  background: rgba(17, 24, 39, 0.72);
  font: inherit;
}

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

.contact-form button {
  border: 0;
  cursor: pointer;
  font: inherit;
}

.fine-print {
  margin: 0;
  color: rgba(255, 255, 255, 0.58);
  font-size: 12px;
}

footer {
  padding: 26px clamp(20px, 5vw, 72px);
  color: #667085;
  background: var(--white);
  border-top: 1px solid var(--line);
}

footer .section-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  font-size: 14px;
}

@media (max-width: 820px) {
  .site-nav {
    align-items: flex-start;
    flex-direction: column;
    padding-top: 16px;
    padding-bottom: 16px;
  }

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

  .brand-mark img {
    width: 132px;
  }

  .hero {
    min-height: 760px;
  }

  .hero-content {
    padding: 60px 0 260px;
  }

  .next-strip,
  .grid-3,
  .grid-2,
  .section-head,
  .feature-layout,
  .contact .section-inner {
    grid-template-columns: 1fr;
  }

  .next-strip div {
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .next-strip div:last-child {
    border-bottom: 0;
  }

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

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

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

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

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

@media (max-width: 520px) {
  .hero h1 {
    font-size: 39px;
  }

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

  .logos {
    grid-template-columns: 1fr;
  }

  .metric-row {
    grid-template-columns: 1fr;
  }
}