:root {
  --black: #111111;
  --black-soft: #1a1a1a;
  --gray: #8f8f8f;
  --gray-strong: #d8d8d8;
  --orange: #ff6a00;
  --orange-soft: #ff8c2a;
  --cream: #f6f6f3;
  --white: #ffffff;
  --line: rgba(255, 255, 255, 0.12);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--white);
  background:
    radial-gradient(circle at top left, rgba(255, 106, 0, 0.2), transparent 32rem),
    linear-gradient(135deg, #080808 0%, #151515 42%, #080808 100%);
  font-family:
    Inter,
    "PingFang SC",
    "Hiragino Sans GB",
    "Microsoft YaHei",
    sans-serif;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 88%);
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1180px, calc(100% - 40px));
  margin: 18px auto 0;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(17, 17, 17, 0.78);
  backdrop-filter: blur(22px);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.22);
}

.site-header.is-scrolled {
  border-color: rgba(255, 106, 0, 0.26);
  background: rgba(10, 10, 10, 0.9);
}

.brand {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background:
    linear-gradient(90deg, var(--black) 0 48%, transparent 48%),
    var(--orange);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 0 24px rgba(255, 106, 0, 0.48);
}

.brand-text {
  font-size: 16px;
}

.nav {
  display: flex;
  gap: 28px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
}

.nav a,
.mobile-nav a {
  transition:
    color 180ms ease,
    transform 180ms ease;
}

.nav a:hover,
.mobile-nav a:hover {
  color: var(--white);
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-weight: 700;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

.header-cta {
  min-height: 40px;
  padding: 0 18px;
  color: var(--black);
  background: var(--orange);
  font-size: 14px;
}

.button {
  min-height: 50px;
  padding: 0 24px;
  border: 1px solid transparent;
}

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

.button.primary {
  color: var(--black);
  background: var(--orange);
  box-shadow: 0 16px 44px rgba(255, 106, 0, 0.3);
}

.button.secondary {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.06);
}

.menu-button {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
}

.menu-button span {
  display: block;
  width: 16px;
  height: 2px;
  margin: 4px auto;
  background: var(--white);
  border-radius: 999px;
}

.mobile-nav {
  position: fixed;
  top: 82px;
  left: 20px;
  right: 20px;
  z-index: 19;
  display: none;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(17, 17, 17, 0.94);
  backdrop-filter: blur(20px);
}

.mobile-nav.is-open {
  display: grid;
  gap: 16px;
}

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

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(360px, 0.96fr);
  gap: 56px;
  align-items: center;
  min-height: calc(100vh - 90px);
  padding: 80px 0 88px;
}

.eyebrow {
  color: var(--orange);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero h1,
.section-heading h2,
.intro h2,
.trust h2,
.about h2,
.contact h2 {
  max-width: 780px;
  margin-top: 18px;
  font-size: clamp(38px, 6vw, 82px);
  line-height: 0.98;
  letter-spacing: -0.07em;
}

.hero-description {
  max-width: 680px;
  margin-top: 26px;
  color: rgba(255, 255, 255, 0.72);
  font-size: clamp(16px, 2vw, 20px);
  line-height: 1.8;
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  margin-top: 34px;
}

.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 34px;
}

.hero-proof span,
.product-wall span {
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.72);
  background: rgba(255, 255, 255, 0.05);
}

.hero-proof span {
  padding: 10px 14px;
  font-size: 13px;
}

.hero-visual {
  position: relative;
  min-height: 540px;
  border: 1px solid var(--line);
  border-radius: 42px;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 42%, rgba(255, 106, 0, 0.34), transparent 14rem),
    linear-gradient(145deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.02));
  box-shadow: var(--shadow);
}

.hero-visual::before {
  position: absolute;
  inset: 26px;
  content: "";
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 34px;
}

.hero-visual::after {
  position: absolute;
  right: -80px;
  bottom: -80px;
  width: 220px;
  height: 220px;
  content: "";
  background: rgba(255, 106, 0, 0.16);
  border-radius: 50%;
  filter: blur(8px);
}

.orange-core,
.orbit {
  position: absolute;
  border-radius: 50%;
}

.orange-core {
  top: 50%;
  left: 50%;
  width: 188px;
  height: 188px;
  background:
    linear-gradient(90deg, rgba(17, 17, 17, 0.92) 0 48%, transparent 48%),
    radial-gradient(circle at 70% 34%, #ffb265, var(--orange) 68%);
  box-shadow:
    0 0 70px rgba(255, 106, 0, 0.5),
    inset -18px -18px 40px rgba(0, 0, 0, 0.22);
  transform: translate(-50%, -50%);
}

.orbit {
  border: 1px solid rgba(255, 255, 255, 0.12);
  transform: translate(-50%, -50%);
}

.orbit-one {
  top: 50%;
  left: 50%;
  width: 330px;
  height: 330px;
}

.orbit-two {
  top: 50%;
  left: 50%;
  width: 460px;
  height: 460px;
}

.floating-card {
  position: absolute;
  width: 220px;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 24px;
  background: rgba(10, 10, 10, 0.74);
  backdrop-filter: blur(18px);
  box-shadow: 0 22px 70px rgba(0, 0, 0, 0.28);
}

.floating-card span,
.card-index,
.process-list span {
  color: var(--orange);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.floating-card strong {
  display: block;
  margin-top: 12px;
  font-size: 18px;
}

.floating-card p {
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 13px;
  line-height: 1.6;
}

.card-app {
  top: 74px;
  left: 50px;
}

.card-ai {
  top: 230px;
  right: 42px;
}

.card-data {
  left: 76px;
  bottom: 70px;
}

.intro,
.about {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 80px;
  align-items: start;
  padding: 86px 0 54px;
}

.intro h2,
.section-heading h2,
.trust h2,
.about h2,
.contact h2 {
  font-size: clamp(32px, 4vw, 58px);
}

.intro > p,
.about-copy p,
.wide-text,
.contact-card > p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 18px;
  line-height: 1.8;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  padding: 36px 0 92px;
}

.capability-card {
  min-height: 260px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.055);
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

.capability-card:hover {
  border-color: rgba(255, 106, 0, 0.42);
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-6px);
}

.capability-card.featured {
  background:
    linear-gradient(145deg, rgba(255, 106, 0, 0.24), rgba(255, 255, 255, 0.06)),
    rgba(255, 255, 255, 0.06);
}

.capability-card h3,
.process-list h3 {
  margin-top: 26px;
  font-size: 22px;
  letter-spacing: -0.04em;
}

.capability-card p,
.process-list p,
.trust-grid p {
  margin-top: 16px;
  color: rgba(255, 255, 255, 0.66);
  line-height: 1.75;
}

.products,
.process,
.trust,
.contact {
  padding: 88px 0;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 34px;
}

.product-wall {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 42px 0 28px;
}

.product-wall span {
  padding: 16px 22px;
  color: var(--white);
  font-size: clamp(18px, 2.5vw, 34px);
  font-weight: 800;
  letter-spacing: -0.05em;
}

.wide-text {
  max-width: 850px;
}

.process-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--line);
  border-radius: 30px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.045);
}

.process-list article {
  min-height: 260px;
  padding: 28px;
  border-right: 1px solid var(--line);
}

.process-list article:last-child {
  border-right: 0;
}

.trust-panel,
.contact-card {
  border: 1px solid rgba(255, 106, 0, 0.22);
  border-radius: 42px;
  background:
    radial-gradient(circle at top right, rgba(255, 106, 0, 0.18), transparent 28rem),
    rgba(255, 255, 255, 0.055);
  box-shadow: var(--shadow);
}

.trust-panel {
  padding: clamp(30px, 6vw, 66px);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 34px;
}

.trust-grid p {
  min-height: 126px;
  margin-top: 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(0, 0, 0, 0.18);
}

.about {
  padding-bottom: 100px;
}

.about-copy {
  display: grid;
  gap: 22px;
}

.contact-card {
  padding: clamp(32px, 7vw, 76px);
}

.contact-card h2 {
  max-width: 860px;
}

.contact-card > p {
  max-width: 760px;
  margin-top: 24px;
}

.contact-actions span {
  color: rgba(255, 255, 255, 0.62);
}

.contact-email {
  color: rgba(255, 255, 255, 0.78);
  font-weight: 700;
}

.contact-email:hover {
  color: var(--orange);
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 28px 0 42px;
  color: rgba(255, 255, 255, 0.5);
  border-top: 1px solid var(--line);
  font-size: 14px;
}

@media (max-width: 980px) {
  .nav,
  .header-cta {
    display: none;
  }

  .menu-button {
    display: block;
  }

  .hero,
  .intro,
  .about {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 70px;
  }

  .hero-visual {
    min-height: 480px;
  }

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

  .process-list article:nth-child(2) {
    border-right: 0;
  }

  .process-list article:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }
}

@media (max-width: 640px) {
  .site-header,
  .section,
  .footer {
    width: min(100% - 28px, 1180px);
  }

  .brand-text {
    font-size: 15px;
  }

  .hero {
    gap: 36px;
    padding: 56px 0 68px;
  }

  .hero-actions,
  .contact-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .hero-visual {
    min-height: 420px;
    border-radius: 30px;
  }

  .orange-core {
    width: 140px;
    height: 140px;
  }

  .orbit-one {
    width: 250px;
    height: 250px;
  }

  .orbit-two {
    width: 340px;
    height: 340px;
  }

  .floating-card {
    width: 180px;
    padding: 14px;
  }

  .card-app {
    top: 42px;
    left: 20px;
  }

  .card-ai {
    top: 174px;
    right: 18px;
  }

  .card-data {
    left: 22px;
    bottom: 34px;
  }

  .intro,
  .products,
  .process,
  .trust,
  .about,
  .contact {
    padding: 58px 0;
  }

  .capability-grid,
  .process-list,
  .trust-grid {
    grid-template-columns: 1fr;
  }

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

  .process-list article,
  .process-list article:nth-child(2) {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .process-list article:last-child {
    border-bottom: 0;
  }

  .section-heading {
    display: block;
  }

  .footer {
    flex-direction: column;
  }
}