:root {
  --ink: #06101f;
  --ink-2: #132236;
  --paper: #f4f7fb;
  --mist: #dfe8f4;
  --line: rgba(255, 255, 255, 0.16);
  --steel: #8fa0b6;
  --signal: #e22d3e;
  --gold: #c5a465;
  --white: #ffffff;
  --shadow: 0 28px 90px rgba(6, 16, 31, 0.26);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--ink);
  overflow-x: clip;
}

body {
  margin: 0;
  font-family: Inter, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--white);
  background: var(--ink);
  letter-spacing: 0;
  overflow-x: clip;
}

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

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

main > section {
  scroll-margin-top: 96px;
}

.progress {
  position: fixed;
  inset: 0 auto auto 0;
  z-index: 100;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--signal), var(--gold));
}

.site-header {
  position: fixed;
  inset: 16px 20px auto;
  z-index: 50;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  min-height: 58px;
  padding: 0 14px 0 18px;
  color: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(6, 16, 31, 0.54);
  backdrop-filter: blur(22px);
}

.brand,
.site-header nav,
.header-actions,
.nav-action {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 800;
}

.brand-mark {
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border-radius: 6px;
  background: var(--white);
  color: var(--ink);
  font-weight: 800;
}

.site-header nav {
  justify-content: center;
  gap: clamp(16px, 3vw, 34px);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.68);
}

.site-header nav a,
.nav-action {
  transition: color 0.2s ease, background 0.2s ease;
}

.site-header nav a:hover {
  color: var(--white);
}

.header-actions {
  justify-content: end;
  gap: 10px;
}

.lang-switch {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  min-width: 92px;
  padding: 3px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.08);
}

.lang-switch button {
  min-height: 30px;
  padding: 0 10px;
  color: rgba(255, 255, 255, 0.68);
  border: 0;
  border-radius: 5px;
  background: transparent;
  font: inherit;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  cursor: pointer;
  transition: color 0.2s ease, background 0.2s ease;
}

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

.nav-action {
  justify-content: center;
  min-height: 36px;
  padding: 0 14px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.12);
  font-size: 13px;
  font-weight: 700;
}

.nav-action:hover {
  background: var(--white);
  color: var(--ink);
}

.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  align-items: end;
  overflow: hidden;
  contain: paint;
  padding: 132px clamp(22px, 6vw, 92px) clamp(28px, 5vw, 72px);
}

.hero-slider,
.hero-slide,
.hero-media,
.hero-shade {
  position: absolute;
  inset: 0;
}

.hero-slider {
  overflow: hidden;
}

.hero-slide {
  opacity: 0;
  transform: scale(1.02);
  transition: opacity 1.1s ease, transform 6s ease;
}

.hero-slide.is-active {
  opacity: 1;
  transform: scale(1);
}

.hero-media {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.06);
  filter: saturate(1.08) contrast(1.08);
}

.hero-shade {
  z-index: 1;
  background:
    linear-gradient(90deg, rgba(2, 7, 14, 0.94) 0%, rgba(2, 7, 14, 0.74) 46%, rgba(2, 7, 14, 0.32) 100%),
    linear-gradient(0deg, rgba(2, 7, 14, 0.88) 0%, rgba(2, 7, 14, 0.28) 52%, rgba(2, 7, 14, 0.5) 100%);
}

.hero-content,
.hero-kpis {
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 760px;
}

.eyebrow,
.section-label {
  margin: 0 0 18px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-title {
  margin: 0;
  max-width: 900px;
  font-size: clamp(58px, 11vw, 152px);
  line-height: 0.88;
  letter-spacing: 0;
}

.hero-copy {
  width: min(640px, 100%);
  margin: 28px 0 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: clamp(18px, 2vw, 24px);
  line-height: 1.45;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.hero-dots {
  position: absolute;
  right: clamp(22px, 6vw, 92px);
  bottom: clamp(30px, 5vw, 74px);
  z-index: 3;
  display: flex;
  gap: 8px;
}

.hero-dots button {
  width: 34px;
  height: 3px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.34);
  cursor: pointer;
  transition: width 0.25s ease, background 0.25s ease;
}

.hero-dots button.is-active {
  width: 52px;
  background: var(--white);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 7px;
  font-weight: 800;
  font-size: 14px;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.button:hover {
  transform: translateY(-2px);
}

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

.button.ghost {
  border: 1px solid rgba(255, 255, 255, 0.26);
  color: var(--white);
}

.hero-kpis {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  width: min(840px, 100%);
  margin-top: 74px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(18px);
}

.hero-kpis div {
  min-height: 118px;
  padding: 22px;
  background: rgba(6, 16, 31, 0.42);
}

.hero-kpis strong {
  display: block;
  color: var(--white);
  font-size: clamp(30px, 4vw, 54px);
  line-height: 1;
}

.hero-kpis span {
  display: block;
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.64);
  font-size: 13px;
  line-height: 1.4;
}

.band {
  padding: clamp(76px, 10vw, 148px) clamp(22px, 6vw, 92px);
}

.intro {
  background: var(--paper);
  color: var(--ink);
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: clamp(32px, 7vw, 110px);
  align-items: start;
}

.intro h2,
.section-heading h2,
.factory-copy h2,
.process-copy h2,
.why-copy h2,
.contact-panel h2 {
  margin: 0;
  font-size: clamp(34px, 6vw, 76px);
  line-height: 0.98;
  letter-spacing: 0;
}

.factory-copy h2,
.why-copy h2,
.contact-panel h2 {
  font-size: clamp(34px, 4.4vw, 58px);
  line-height: 1.02;
}

.intro p,
.section-heading p,
.factory-copy p,
.solution-card p,
.process-step p,
.why-grid p,
.contact-panel p,
.capability-card p {
  margin: 0;
  color: rgba(6, 16, 31, 0.68);
  font-size: 16px;
  line-height: 1.72;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.55fr);
  gap: clamp(28px, 6vw, 90px);
  align-items: end;
  margin-bottom: clamp(34px, 6vw, 76px);
}

.section-heading h2 {
  max-width: 880px;
}

.solutions {
  background: #0b1424;
  color: var(--white);
}

.solutions .section-heading p {
  color: rgba(255, 255, 255, 0.62);
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.12);
}

.solution-card {
  position: relative;
  min-height: 540px;
  display: grid;
  align-content: end;
  overflow: hidden;
  background: #101d2d;
}

.solution-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.04);
  transition: transform 0.7s ease;
}

.solution-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(6, 16, 31, 0.02), rgba(6, 16, 31, 0.88)),
    linear-gradient(90deg, rgba(6, 16, 31, 0.54), rgba(6, 16, 31, 0.1));
}

.solution-card:hover img {
  transform: scale(1.09);
}

.solution-card div {
  position: relative;
  z-index: 1;
  padding: clamp(24px, 3vw, 36px);
}

.solution-card span {
  display: block;
  margin-bottom: 16px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.solution-card h3 {
  margin: 0 0 16px;
  font-size: clamp(26px, 3vw, 40px);
  line-height: 1.02;
}

.solution-card p {
  color: rgba(255, 255, 255, 0.68);
}

.capabilities {
  padding-top: clamp(54px, 7vw, 96px);
  padding-bottom: clamp(64px, 8vw, 112px);
  background: #ffffff;
  color: var(--ink);
}

.capabilities .section-heading {
  display: block;
  margin-bottom: clamp(28px, 4vw, 48px);
}

.capabilities .section-label {
  margin-bottom: 18px;
}

.capabilities .section-heading h2 {
  max-width: 980px;
  font-size: clamp(34px, 5.4vw, 72px);
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid rgba(6, 16, 31, 0.12);
  border-radius: 8px;
  overflow: hidden;
}

.capability-card {
  min-height: 280px;
  padding: clamp(22px, 3vw, 34px);
  border-right: 1px solid rgba(6, 16, 31, 0.1);
  background: linear-gradient(180deg, #fff, #f6f8fb);
}

.capability-card:last-child {
  border-right: 0;
}

.capability-card span,
.process-step span {
  display: block;
  color: var(--signal);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.capability-card h3,
.process-step h3,
.why-grid h3 {
  margin: 48px 0 18px;
  font-size: clamp(22px, 2.2vw, 30px);
  line-height: 1.08;
}

.factory {
  min-height: 200vh;
  background: var(--ink);
}

.factory-sticky {
  position: sticky;
  top: 0;
  display: grid;
  grid-template-columns: minmax(280px, 0.6fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(28px, 5vw, 70px);
  min-height: 100svh;
  padding: clamp(96px, 10vw, 144px) clamp(22px, 6vw, 92px);
  overflow: hidden;
}

.factory-copy p {
  margin-top: 26px;
  color: rgba(255, 255, 255, 0.66);
}

.factory-visual,
.wide-image,
.contact-media {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.factory-visual img,
.wide-image img,
.contact-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.factory-visual {
  aspect-ratio: 16 / 9;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  padding-top: 0;
  padding-bottom: 0;
  background: var(--mist);
  color: var(--ink);
}

.stat {
  min-height: 260px;
  display: grid;
  align-content: center;
  gap: 12px;
  padding: clamp(28px, 4vw, 48px);
  background: var(--white);
}

.stat strong {
  font-size: clamp(42px, 6vw, 82px);
  line-height: 0.92;
}

.stat span {
  color: rgba(6, 16, 31, 0.58);
  font-weight: 700;
}

.process-section {
  position: relative;
  z-index: 1;
  min-height: 500vh;
  background: #07101e;
}

.process-pin {
  position: sticky;
  top: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 0.92fr);
  gap: clamp(26px, 4vw, 56px);
  align-items: center;
  height: 100svh;
  min-height: 720px;
  padding: clamp(82px, 7vw, 104px) clamp(22px, 6vw, 92px) clamp(40px, 5vw, 70px);
}

.process-visual {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: 8px;
  background: #101d2d;
  box-shadow: var(--shadow);
}

.process-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.02);
}

.process-copy h2 {
  max-width: 680px;
  font-size: clamp(34px, 4.2vw, 56px);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 24px;
}

.process-step {
  min-height: 142px;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  opacity: 0.48;
  background: rgba(255, 255, 255, 0.04);
  transition: opacity 0.25s ease, background 0.25s ease, transform 0.25s ease;
}

.process-step.is-active {
  opacity: 1;
  transform: translateY(-3px);
  background: rgba(255, 255, 255, 0.11);
}

.process-step h3 {
  margin: 10px 0 6px;
  font-size: clamp(17px, 1.5vw, 20px);
}

.process-step p {
  color: rgba(255, 255, 255, 0.64);
  font-size: 12.5px;
  line-height: 1.45;
}

.customers {
  position: relative;
  z-index: 2;
  padding-top: clamp(58px, 7vw, 96px);
  background: var(--paper);
  color: var(--ink);
}

.customers .section-heading {
  grid-template-columns: minmax(280px, 0.75fr) minmax(360px, 0.9fr);
  align-items: start;
  margin-bottom: clamp(26px, 4vw, 52px);
}

.customers .section-label {
  grid-column: 1 / -1;
  margin-bottom: 0;
}

.customers .section-heading h2 {
  grid-column: 1;
  max-width: 760px;
  font-size: clamp(34px, 5.4vw, 72px);
}

.customers .section-heading p {
  grid-column: 2;
  align-self: end;
  max-width: 720px;
}

.wide-image {
  aspect-ratio: 16 / 9;
  border-color: rgba(6, 16, 31, 0.1);
}

.why {
  display: grid;
  grid-template-columns: minmax(280px, 0.7fr) minmax(0, 1fr);
  gap: clamp(34px, 6vw, 92px);
  background: var(--ink-2);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
}

.why-grid article {
  min-height: 220px;
  padding: clamp(24px, 3vw, 34px);
  background: rgba(255, 255, 255, 0.06);
}

.why-grid h3 {
  margin-top: 0;
  color: var(--white);
}

.why-grid p {
  color: rgba(255, 255, 255, 0.62);
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(330px, 0.72fr);
  gap: clamp(28px, 5vw, 78px);
  align-items: center;
  min-height: 100svh;
  padding: clamp(92px, 10vw, 150px) clamp(22px, 6vw, 92px);
  background: #f7f9fc;
  color: var(--ink);
}

.contact-media {
  aspect-ratio: 16 / 9;
  border-color: rgba(6, 16, 31, 0.1);
}

.contact-panel p {
  margin-top: 24px;
}

.contact-panel dl {
  display: grid;
  gap: 1px;
  margin: 34px 0;
  overflow: hidden;
  border: 1px solid rgba(6, 16, 31, 0.1);
  border-radius: 8px;
}

.contact-panel dl div {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 18px;
  padding: 16px 18px;
  background: var(--white);
}

.contact-panel dt,
.contact-panel dd {
  margin: 0;
  font-size: 14px;
}

.contact-panel dt {
  color: rgba(6, 16, 31, 0.55);
  font-weight: 800;
}

.contact-panel dd {
  overflow-wrap: anywhere;
  font-weight: 800;
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(260px, 1.6fr) repeat(3, minmax(140px, 0.7fr));
  gap: clamp(24px, 5vw, 76px);
  padding: clamp(42px, 6vw, 76px) clamp(22px, 6vw, 92px);
  color: rgba(255, 255, 255, 0.56);
  background: #040914;
  font-size: 13px;
}

.site-footer strong {
  display: block;
  color: var(--white);
  font-size: 22px;
}

.site-footer p {
  max-width: 360px;
  margin: 14px 0 0;
  line-height: 1.6;
}

.site-footer span {
  display: block;
  margin-bottom: 14px;
  color: var(--white);
  font-weight: 800;
}

.site-footer a {
  display: block;
  margin-top: 10px;
  line-height: 1.45;
  transition: color 0.2s ease;
}

.site-footer a:hover {
  color: var(--white);
}

.reveal,
.reveal-card,
.reveal-image {
  will-change: transform, opacity;
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: auto auto;
    justify-content: space-between;
  }

  .site-header nav {
    display: none;
  }

  .intro-grid,
  .section-heading,
  .factory-sticky,
  .process-pin,
  .why,
  .contact {
    grid-template-columns: 1fr;
  }

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

  .factory {
    min-height: auto;
  }

  .factory-sticky {
    position: relative;
    height: auto;
    min-height: auto;
  }

  .process-section {
    min-height: 420vh;
  }

  .process-pin {
    position: sticky;
    top: 0;
    height: 100svh;
    min-height: 760px;
  }
}

@media (max-width: 640px) {
  .site-header {
    inset: 10px 10px auto;
    min-height: 52px;
    padding: 0 10px 0 12px;
  }

  .nav-action {
    min-height: 34px;
    padding: 0 10px;
    font-size: 12px;
  }

  .header-actions {
    gap: 6px;
  }

  .lang-switch {
    min-width: 76px;
  }

  .lang-switch button {
    min-height: 32px;
    padding: 0 7px;
    font-size: 11px;
  }

  .hero {
    padding: 108px 18px 22px;
  }

  .hero-title {
    font-size: clamp(52px, 20vw, 84px);
  }

  .hero-kpis,
  .capability-grid,
  .solution-grid,
  .stats,
  .why-grid,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .solution-card {
    min-height: 360px;
  }

  .hero-dots {
    right: 18px;
    bottom: 18px;
  }

  .hero-kpis div {
    min-height: 92px;
  }

  .band,
  .factory-sticky,
  .process-pin,
  .contact {
    padding-left: 18px;
    padding-right: 18px;
  }

  .capability-card {
    min-height: 230px;
    border-right: 0;
    border-bottom: 1px solid rgba(6, 16, 31, 0.1);
  }

  .capability-card h3 {
    margin-top: 42px;
  }

  .stat {
    min-height: 170px;
  }

  .process-step.is-active {
    transform: none;
  }

  .process-pin {
    gap: 14px;
    padding-top: 82px;
    padding-bottom: 16px;
  }

  .process-copy h2 {
    font-size: clamp(31px, 9vw, 42px);
  }

  .process-steps {
    gap: 8px;
    margin-top: 18px;
  }

  .process-step {
    min-height: 138px;
    padding: 12px;
  }

  .contact-panel dl div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .site-footer {
    display: grid;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}