:root {
  color-scheme: dark;
  --ktos-bg: #030a12;
  --ktos-bg-soft: #06111d;
  --ktos-panel: rgba(9, 26, 42, 0.78);
  --ktos-panel-strong: #081725;
  --ktos-line: rgba(48, 167, 227, 0.24);
  --ktos-blue: #00b7ff;
  --ktos-blue-soft: #66d5ff;
  --ktos-text: #f3f8fc;
  --ktos-muted: #a6bac9;
  --ktos-max: 1720px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--ktos-bg);
}

body.ktos-page {
  margin: 0;
  min-width: 320px;
  color: var(--ktos-text);
  background:
    radial-gradient(circle at 78% 10%, rgba(0, 126, 196, 0.15), transparent 28rem),
    radial-gradient(circle at 12% 48%, rgba(0, 113, 180, 0.08), transparent 34rem),
    var(--ktos-bg);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
  line-height: 1.75;
  overflow-x: hidden;
}

a {
  color: inherit;
}

.ktos-skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 8px 14px;
  color: #00111c;
  background: var(--ktos-blue);
  transform: translateY(-160%);
}

.ktos-skip-link:focus {
  transform: translateY(0);
}

.ktos-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 48px), var(--ktos-max));
  min-height: 112px;
  margin: 0 auto;
  border-bottom: 1px solid var(--ktos-line);
}

.ktos-brand {
  display: inline-flex;
}

.ktos-brand img,
.ktos-footer img {
  display: block;
  width: 154px;
  height: auto;
}

.ktos-home-link {
  flex: 0 0 auto;
  color: #d8effb;
  font-size: 14px;
  text-decoration: none;
  transition: color 180ms ease;
}

.ktos-home-link:hover,
.ktos-home-link:focus-visible,
.ktos-footer a:hover,
.ktos-footer a:focus-visible {
  color: var(--ktos-blue);
}

.ktos-breadcrumb {
  width: min(calc(100% - 48px), var(--ktos-max));
  margin: 18px auto 0;
  color: #718a9c;
  font-size: 12px;
}

.ktos-breadcrumb ol {
  display: flex;
  gap: 9px;
  align-items: center;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ktos-breadcrumb li + li::before {
  content: ">";
  margin-right: 9px;
  color: #426176;
}

.ktos-breadcrumb a {
  text-decoration: none;
}

.ktos-hero,
.ktos-section,
.ktos-footer {
  width: min(calc(100% - 48px), var(--ktos-max));
  margin-inline: auto;
}

.ktos-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 1.05fr);
  gap: clamp(40px, 5vw, 64px);
  align-items: center;
  min-height: 680px;
  padding: 72px 0 88px;
}

.ktos-eyebrow,
.ktos-section__number,
.ktos-panel-label,
.ktos-product-card__index {
  margin: 0 0 20px;
  color: var(--ktos-blue);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2em;
}

.ktos-hero h1 {
  margin: 0;
  color: #fff;
  font-size: clamp(66px, 7.2vw, 104px);
  font-weight: 700;
  letter-spacing: -0.055em;
  line-height: 0.9;
}

.ktos-hero h1 span {
  display: block;
  margin-top: 24px;
  color: var(--ktos-blue);
  font-size: clamp(20px, 2.2vw, 30px);
  letter-spacing: 0;
  line-height: 1.35;
}

.ktos-hero__slogan {
  margin: 44px 0 20px;
  color: #fff;
  font-size: clamp(26px, 2.4vw, 36px);
  font-weight: 700;
  line-height: 1.45;
  white-space: nowrap;
}

.ktos-hero__lead {
  max-width: 560px;
  margin: 0;
  color: var(--ktos-muted);
  font-size: 17px;
}

.ktos-hero__visual {
  position: relative;
  margin: 0;
  isolation: isolate;
}

.ktos-hero__visual::before,
.ktos-hero__visual::after {
  position: absolute;
  z-index: -1;
  border: 1px solid rgba(0, 183, 255, 0.3);
  border-radius: 50%;
  content: "";
  inset: -40px;
}

.ktos-hero__visual::after {
  inset: -80px;
  border-color: rgba(0, 183, 255, 0.1);
}

.ktos-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--ktos-line);
  box-shadow: 0 30px 90px rgba(0, 85, 140, 0.26);
}

.ktos-hero__halo {
  position: absolute;
  z-index: -1;
  inset: 18%;
  background: rgba(0, 174, 255, 0.35);
  filter: blur(80px);
}

.ktos-section {
  position: relative;
  padding: 112px 0;
  border-top: 1px solid var(--ktos-line);
}

.ktos-section::before {
  position: absolute;
  top: -1px;
  left: 0;
  width: 88px;
  height: 2px;
  background: var(--ktos-blue);
  content: "";
}

.ktos-section__heading {
  max-width: 760px;
  margin-bottom: 54px;
}

.ktos-section__heading--center {
  margin-inline: auto;
  text-align: center;
}

.ktos-section__heading h2 {
  margin: 0 0 22px;
  color: var(--ktos-blue);
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.2;
}

.ktos-section__heading > p:last-child,
.ktos-definition__body p {
  margin: 0;
  color: #c8d9e5;
  font-size: 17px;
}

.ktos-definition {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: clamp(48px, 8vw, 120px);
  align-items: start;
}

.ktos-definition__body {
  position: relative;
  padding: 34px 38px;
  border-left: 2px solid var(--ktos-blue);
  background: linear-gradient(90deg, rgba(0, 183, 255, 0.09), transparent);
}

.ktos-architecture {
  display: grid;
  gap: 10px;
  max-width: 920px;
  margin: 0 auto;
}

.ktos-layer {
  display: grid;
  grid-template-columns: 64px 180px 1fr;
  gap: 22px;
  align-items: center;
  min-height: 92px;
  padding: 18px 28px;
  border: 1px solid var(--ktos-line);
  background: linear-gradient(90deg, rgba(0, 183, 255, 0.12), rgba(8, 23, 37, 0.84) 55%, rgba(8, 23, 37, 0.35));
  transition: border-color 180ms ease, transform 180ms ease;
}

.ktos-layer:hover {
  transform: translateX(6px);
  border-color: rgba(0, 183, 255, 0.6);
}

.ktos-layer > span,
.ktos-system-card > span {
  color: rgba(102, 213, 255, 0.58);
  font-family: Consolas, monospace;
  font-size: 13px;
}

.ktos-layer h3,
.ktos-system-card h3,
.ktos-loop h3,
.ktos-method h3,
.ktos-evolution h3 {
  margin: 0;
  font-size: 20px;
}

.ktos-layer p,
.ktos-system-card p,
.ktos-loop p,
.ktos-method p {
  margin: 0;
  color: var(--ktos-muted);
  font-size: 14px;
}

.ktos-systems-section::after,
.ktos-products-section::after {
  position: absolute;
  z-index: -1;
  width: 430px;
  height: 430px;
  border-radius: 50%;
  background: rgba(0, 130, 210, 0.12);
  content: "";
  filter: blur(90px);
  pointer-events: none;
  right: -220px;
  top: 22%;
}

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

.ktos-system-card {
  min-height: 220px;
  padding: 30px;
  border: 1px solid var(--ktos-line);
  background: linear-gradient(145deg, rgba(12, 38, 59, 0.86), rgba(5, 16, 27, 0.88));
}

.ktos-system-card h3 {
  margin: 30px 0 14px;
  color: var(--ktos-blue-soft);
  font-size: 24px;
}

.ktos-products-section__lead {
  color: #fff !important;
  font-size: clamp(20px, 2.3vw, 28px) !important;
  font-weight: 600;
}

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

.ktos-product-card {
  position: relative;
  min-height: 540px;
  padding: 34px;
  overflow: hidden;
  border: 1px solid rgba(73, 177, 229, 0.36);
  background: linear-gradient(160deg, rgba(12, 43, 67, 0.94), rgba(3, 12, 21, 0.96) 68%);
}

.ktos-product-card::before {
  position: absolute;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(0, 183, 255, 0.12);
  content: "";
  filter: blur(40px);
  top: 30px;
  right: -100px;
}

.ktos-product-card--growth::before {
  background: rgba(64, 132, 255, 0.15);
}

.ktos-product-card--operation::before {
  background: rgba(0, 218, 194, 0.13);
}

.ktos-product-card__logo-wrap {
  position: relative;
  display: grid;
  width: 104px;
  height: 104px;
  margin-bottom: 34px;
  padding: 12px;
  place-items: center;
  overflow: hidden;
  border: 1px solid rgba(102, 213, 255, 0.55);
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 16px 36px rgba(0, 65, 118, 0.24);
}

.ktos-product-card__logo {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.ktos-product-card h3 {
  margin: 0;
  font-size: 42px;
  line-height: 1.2;
}

.ktos-product-card__role {
  margin: 9px 0 30px;
  color: var(--ktos-blue);
  font-size: 16px;
}

.ktos-product-card__statement {
  min-height: 92px;
  margin: 0 0 34px;
  color: #e9f5fb;
  font-size: 19px;
  font-weight: 600;
  line-height: 1.65;
}

.ktos-product-card__features {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ktos-product-card__features li {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 7px 10px;
  border: 1px solid rgba(0, 183, 255, 0.35);
  color: #bfeaff;
  font-size: 13px;
  text-align: center;
}

.ktos-governance {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: clamp(54px, 8vw, 118px);
}

.ktos-loop {
  position: relative;
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ktos-loop::before {
  position: absolute;
  top: 40px;
  bottom: 40px;
  left: 25px;
  width: 1px;
  background: linear-gradient(var(--ktos-blue), rgba(0, 183, 255, 0.05));
  content: "";
}

.ktos-loop li {
  position: relative;
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 22px;
  padding: 22px 0;
}

.ktos-loop li > span {
  z-index: 1;
  display: grid;
  width: 52px;
  height: 52px;
  place-items: center;
  border: 1px solid var(--ktos-blue);
  border-radius: 50%;
  color: var(--ktos-blue);
  background: var(--ktos-bg);
  font-family: Consolas, monospace;
  font-size: 12px;
}

.ktos-loop h3 {
  margin: 2px 0 6px;
  color: #dff5ff;
}

.ktos-implementation__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.ktos-method,
.ktos-evolution {
  padding: 40px;
  border: 1px solid var(--ktos-line);
  background: var(--ktos-panel);
}

.ktos-method h3,
.ktos-evolution h3 {
  margin-bottom: 30px;
  font-size: 25px;
}

.ktos-method ol,
.ktos-evolution ol {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ktos-method li,
.ktos-evolution li {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 16px;
  padding: 18px 0;
  border-top: 1px solid rgba(74, 158, 202, 0.18);
}

.ktos-method li > span,
.ktos-evolution li > span {
  color: var(--ktos-blue);
  font-family: Consolas, monospace;
  font-size: 12px;
}

.ktos-method strong {
  display: block;
  margin-bottom: 4px;
  color: #fff;
}

.ktos-evolution li {
  color: #d8edf7;
  font-size: 15px;
}

.ktos-evolution__note {
  margin: 26px 0 0;
  color: #758d9d;
  font-size: 12px;
}

.ktos-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 180px;
  border-top: 1px solid var(--ktos-line);
}

.ktos-footer p {
  margin: 8px 0 0;
  color: #708797;
  font-size: 12px;
}

.ktos-footer a {
  color: #b8ceda;
  font-size: 14px;
  text-decoration: none;
}

@media (max-width: 900px) {
  .ktos-hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .ktos-hero__copy {
    max-width: 680px;
  }

  .ktos-definition,
  .ktos-governance {
    grid-template-columns: 1fr;
  }

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

  .ktos-product-card:last-child {
    grid-column: 1 / -1;
  }

  .ktos-implementation__grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .ktos-header,
  .ktos-breadcrumb,
  .ktos-hero,
  .ktos-section,
  .ktos-footer {
    width: min(calc(100% - 32px), var(--ktos-max));
  }

  .ktos-header {
    min-height: 82px;
  }

  .ktos-brand img,
  .ktos-footer img {
    width: 112px;
  }

  .ktos-home-link {
    font-size: 12px;
    white-space: nowrap;
  }

  .ktos-breadcrumb {
    margin-top: 12px;
  }

  .ktos-hero {
    gap: 54px;
    padding: 70px 0 78px;
  }

  .ktos-eyebrow,
  .ktos-section__number,
  .ktos-panel-label,
  .ktos-product-card__index {
    letter-spacing: 0.13em;
  }

  .ktos-hero h1 {
    font-size: 60px;
  }

  .ktos-hero h1 span {
    max-width: 280px;
    margin-top: 18px;
    font-size: 20px;
  }

  .ktos-hero__slogan {
    margin-top: 36px;
    font-size: 28px;
    white-space: normal;
  }

  .ktos-hero__lead,
  .ktos-section__heading > p:last-child,
  .ktos-definition__body p {
    font-size: 15px;
  }

  .ktos-hero__visual::before {
    inset: -18px;
  }

  .ktos-hero__visual::after {
    display: none;
  }

  .ktos-section {
    padding: 82px 0;
  }

  .ktos-section__heading {
    margin-bottom: 40px;
  }

  .ktos-definition__body,
  .ktos-method,
  .ktos-evolution {
    padding: 26px 22px;
  }

  .ktos-layer {
    grid-template-columns: 34px 1fr;
    gap: 10px 14px;
    padding: 18px;
  }

  .ktos-layer p {
    grid-column: 2;
  }

  .ktos-systems,
  .ktos-products {
    grid-template-columns: 1fr;
  }

  .ktos-product-card:last-child {
    grid-column: auto;
  }

  .ktos-system-card {
    min-height: 190px;
  }

  .ktos-product-card {
    min-height: 510px;
    padding: 28px;
  }

  .ktos-product-card h3 {
    font-size: 38px;
  }

  .ktos-product-card__statement {
    min-height: auto;
  }

  .ktos-footer {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 26px;
    min-height: 210px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}