:root {
  color-scheme: dark;
  --bg: #040408;
  --bg-soft: #090713;
  --panel: rgba(10, 12, 18, 0.82);
  --panel-strong: rgba(15, 17, 26, 0.96);
  --line: rgba(255, 255, 255, 0.1);
  --line-strong: rgba(255, 255, 255, 0.18);
  --text: #f6f3ee;
  --muted: rgba(246, 243, 238, 0.74);
  --faint: rgba(246, 243, 238, 0.52);
  --accent: #7b3fff;
  --accent-soft: #ffb5f0;
  --accent-2: #dac9ff;
  --shadow: 0 18px 48px rgba(0, 0, 0, 0.3);
  --max: 1180px;
  --radius: 12px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  background:
    radial-gradient(circle at 50% 14%, rgba(123, 63, 255, 0.16), transparent 24%),
    radial-gradient(circle at 18% 10%, rgba(255, 181, 240, 0.1), transparent 18%),
    radial-gradient(circle at 84% 24%, rgba(255, 181, 240, 0.08), transparent 18%),
    linear-gradient(180deg, #090712 0%, #050509 46%, #040408 100%);
  font-family:
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Inter", sans-serif;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: none;
}

body::after {
  content: "";
  position: fixed;
  inset: auto 0 0;
  z-index: -2;
  height: 38vh;
  pointer-events: none;
  background: radial-gradient(ellipse at 50% 100%, rgba(123, 63, 255, 0.12), transparent 70%);
}

main {
  position: relative;
  z-index: 1;
}

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

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

::selection {
  color: #07080d;
  background: var(--accent-2);
}

:focus-visible {
  outline: 2px solid var(--accent-soft);
  outline-offset: 3px;
}

h1,
h2,
h3,
.section-kicker,
.header-cta,
.main-nav a,
.button,
.hero-values span,
.contact-line span,
.contact-line a {
  font-family:
    "Poppins", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

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

h1,
h2,
h3 {
  font-weight: 600;
  line-height: 1.04;
  letter-spacing: 0;
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

.site-header {
  position: fixed;
  z-index: 100;
  top: 14px;
  left: 50%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  width: min(var(--max), calc(100% - 22px));
  padding: 14px 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 28px;
  background: rgba(8, 9, 16, 0.78);
  backdrop-filter: blur(18px) saturate(1.1);
  box-shadow:
    0 18px 56px rgba(0, 0, 0, 0.28),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
  transform: translateX(-50%);
  transition:
    background 220ms var(--ease),
    border-color 220ms var(--ease),
    box-shadow 220ms var(--ease);
}

.site-header[data-scrolled="true"] {
  background: rgba(8, 9, 16, 0.9);
  border-color: rgba(255, 255, 255, 0.14);
  box-shadow:
    0 22px 64px rgba(0, 0, 0, 0.38),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.brand-lockup {
  display: flex;
  align-items: center;
  min-width: 132px;
}

.brand-lockup img {
  width: 142px;
  height: auto;
  filter: invert(1) brightness(1.08);
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex: 1;
}

.main-nav a {
  padding: 8px 0;
  color: var(--faint);
  font-size: 14px;
  font-weight: 500;
  transition: color 180ms var(--ease);
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--text);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(236, 231, 243, 0.9));
  color: #101018;
  font-size: 14px;
  font-weight: 600;
  transition:
    border-color 180ms var(--ease),
    background 180ms var(--ease),
    transform 180ms var(--ease);
}

.header-cta:hover,
.header-cta:focus-visible {
  border-color: rgba(255, 255, 255, 0.58);
  background: linear-gradient(180deg, rgba(255, 255, 255, 1), rgba(243, 236, 251, 0.96));
  transform: translateY(-1px);
}

.hero {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
  padding: 112px 0 28px;
  border-bottom: 1px solid var(--line);
  isolation: isolate;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 44%, rgba(123, 63, 255, 0.2), transparent 20%),
    radial-gradient(circle at 18% 14%, rgba(255, 181, 240, 0.11), transparent 16%),
    radial-gradient(circle at 84% 18%, rgba(255, 181, 240, 0.09), transparent 16%),
    linear-gradient(180deg, #090712 0%, #050509 52%, #040408 100%);
}

.hero-threads,
.hero-vignette,
.hero-orbit {
  position: absolute;
  inset: 0;
}

.hero-threads {
  z-index: 0;
  opacity: 0.98;
  filter:
    drop-shadow(0 0 24px rgba(170, 102, 255, 0.14))
    drop-shadow(0 0 78px rgba(255, 181, 240, 0.08));
}

.hero-threads canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.hero-orbit {
  z-index: 1;
  pointer-events: none;
  mix-blend-mode: screen;
}

.hero-orbit-left {
  background:
    radial-gradient(circle at 12% 16%, rgba(255, 181, 240, 0.24), transparent 14%),
    radial-gradient(circle at 24% 8%, rgba(123, 63, 255, 0.24), transparent 18%),
    radial-gradient(circle at 8% 74%, rgba(123, 63, 255, 0.12), transparent 16%);
}

.hero-orbit-right {
  background:
    radial-gradient(circle at 82% 12%, rgba(255, 181, 240, 0.22), transparent 16%),
    radial-gradient(circle at 90% 78%, rgba(123, 63, 255, 0.16), transparent 18%),
    radial-gradient(circle at 64% 50%, rgba(255, 181, 240, 0.06), transparent 22%);
}

.hero-vignette {
  z-index: 1;
  background:
    linear-gradient(180deg, rgba(4, 4, 8, 0.04), rgba(4, 4, 8, 0.22) 40%, rgba(4, 4, 8, 0.7) 80%, rgba(4, 4, 8, 0.94)),
    radial-gradient(circle at 50% 42%, rgba(255, 255, 255, 0.04), transparent 22%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 2;
  width: min(1060px, calc(100% - 24px));
  min-height: calc(100svh - 140px);
  margin: 0 auto;
  display: grid;
  place-items: center;
}

.hero-copy {
  max-width: 840px;
  width: 100%;
  padding: 0 0 12px;
  text-align: center;
}

.hero-copy h1 {
  max-width: 100%;
  margin: 18px auto 0;
  font-size: 4.7rem;
  line-height: 0.92;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.hero-lead {
  margin: 18px auto 0;
  max-width: 28ch;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.7;
  text-wrap: normal;
}

.hero-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 50px;
  padding: 0 20px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  transition:
    border-color 180ms var(--ease),
    background 180ms var(--ease),
    transform 180ms var(--ease);
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button-primary {
  border-color: rgba(255, 255, 255, 0.16);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(234, 230, 241, 0.94));
  color: #101018;
}

.button-primary:hover,
.button-primary:focus-visible {
  background: linear-gradient(180deg, rgba(255, 255, 255, 1), rgba(242, 237, 250, 0.98));
}

.button-secondary {
  border-color: rgba(255, 255, 255, 0.11);
  background: linear-gradient(180deg, rgba(34, 26, 56, 0.88), rgba(17, 17, 28, 0.94));
}

.button-secondary:hover,
.button-secondary:focus-visible {
  border-color: rgba(255, 181, 240, 0.22);
  background: linear-gradient(180deg, rgba(46, 34, 81, 0.94), rgba(23, 23, 36, 0.98));
}

.hero-values {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0;
  color: var(--faint);
  font-size: 13px;
  letter-spacing: 0.02em;
}

.hero-values span {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 14px;
  border: none;
  border-radius: 0;
  background: none;
}

.hero-values span + span::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 1px;
  height: 12px;
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-50%);
}

.section {
  width: 100%;
  padding: 92px 0;
}

.section + .section {
  border-top: 1px solid var(--line);
}

.section-kicker {
  display: inline-flex;
  align-items: center;
  color: var(--accent-2);
  font-size: 13px;
}

.section-heading {
  width: min(var(--max), calc(100% - 24px));
  margin: 0 auto 38px;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 40px;
  align-items: end;
}

.section-heading h2,
.about-copy h2,
.contact-inner h2 {
  font-size: 2.84rem;
  line-height: 1.06;
}

.section-heading p,
.about-copy p,
.contact-copy p,
.contact-line p {
  color: var(--muted);
  line-height: 1.8;
}

.capability-grid,
.about-grid,
.contact-inner {
  width: min(var(--max), calc(100% - 24px));
  margin: 0 auto;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}

.capability-card {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(8, 9, 15, 0.9)),
    var(--panel);
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.22);
}

.capability-card figure {
  margin: 0;
  background: linear-gradient(180deg, rgba(14, 16, 24, 0.96), rgba(8, 10, 15, 1));
  border-bottom: 1px solid var(--line);
}

.capability-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center top;
}

.card-copy {
  display: grid;
  gap: 8px;
  padding: 18px 18px 20px;
}

.card-copy h3 {
  font-size: 1.3rem;
}

.card-copy p {
  color: var(--muted);
  line-height: 1.6;
}

.about-section {
  padding-top: 100px;
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}

.about-copy {
  padding-right: 0;
  max-width: 860px;
}

.about-copy h2 {
  max-width: 12ch;
}

.about-copy p {
  margin-top: 16px;
  line-height: 1.75;
}

.contact-section {
  padding: 100px 0 28px;
}

.contact-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
  gap: 24px 40px;
  align-items: start;
}

.contact-copy {
  padding-right: 12px;
}

.contact-copy h2 {
  max-width: 11ch;
}

.contact-copy p {
  margin-top: 16px;
  max-width: 24ch;
}

.contact-panel {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(10, 11, 18, 0.92)),
    var(--panel);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.24);
}

.contact-line {
  padding: 20px 22px 18px;
  display: grid;
  gap: 10px;
  align-content: start;
  background: rgba(10, 11, 18, 0.74);
}

.contact-line + .contact-line {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.contact-line span {
  color: var(--accent-2);
  font-family:
    "Poppins", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 12px;
  letter-spacing: 0.03em;
}

.contact-line a {
  color: var(--text);
  font-family:
    "Poppins", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.35;
}

.contact-line a:hover,
.contact-line a:focus-visible {
  color: var(--accent-soft);
}

.contact-line p {
  max-width: 32ch;
  line-height: 1.55;
}

.site-footer {
  width: min(var(--max), calc(100% - 24px));
  margin: 18px auto 0;
  padding: 16px 0 6px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px 20px;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  color: var(--faint);
  font-size: 12px;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 720ms var(--ease),
    transform 720ms var(--ease);
  transition-delay: var(--delay, 0ms);
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

.no-widow {
  overflow-wrap: anywhere;
}

.hero-copy h1,
.section-heading h2,
.about-copy h2,
.contact-inner h2 {
  text-wrap: balance;
}

.capability-card,
.contact-panel {
  transition:
    transform 180ms var(--ease),
    border-color 180ms var(--ease),
    box-shadow 180ms var(--ease);
}

.capability-card:hover,
.contact-panel:hover {
  border-color: rgba(255, 255, 255, 0.14);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.28);
  transform: translateY(-1px);
}

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

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .hero-threads {
    opacity: 0.78;
  }

  .site-header,
  .header-cta,
  .button,
  .main-nav a,
  .capability-card,
  .contact-panel {
    transition: none;
  }
}

@media (max-width: 1200px) {
  .section-heading h2,
  .about-copy h2,
  .contact-inner h2 {
    font-size: 2.6rem;
  }

  .section-heading,
  .about-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }

  .section-heading h2,
  .about-copy h2,
  .contact-inner h2 {
    max-width: 100%;
  }
}

@media (max-width: 780px) {
  .site-header {
    flex-wrap: wrap;
    gap: 12px 16px;
    padding: 12px 14px;
    width: min(var(--max), calc(100% - 16px));
  }

  .main-nav {
    order: 3;
    width: 100%;
    justify-content: flex-start;
    gap: 18px;
  }

  .header-cta {
    margin-left: auto;
  }

  .hero {
    padding-top: 118px;
  }

  .hero-copy h1 {
    font-size: 3.2rem;
  }

  .hero-lead {
    font-size: 1rem;
  }

  .capability-grid,
  .contact-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .contact-copy {
    padding-right: 0;
  }

  .contact-copy h2 {
    max-width: 100%;
  }

  .section {
    padding: 76px 0;
  }

  .section-heading h2,
  .about-copy h2,
  .contact-inner h2 {
    font-size: 2.15rem;
  }
}

@media (max-width: 560px) {
  .site-header {
    top: 10px;
  }

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

  .hero {
    padding-top: 108px;
  }

  .hero-copy h1 {
    font-size: 2.55rem;
    max-width: 100%;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
    width: min(360px, 100%);
    margin-inline: auto;
  }

  .button {
    width: 100%;
  }

  .section-heading h2,
  .about-copy h2,
  .contact-copy h2 {
    font-size: 1.9rem;
  }

  .card-copy {
    padding: 16px 16px 18px;
  }

  .contact-line {
    padding: 16px 18px;
  }

  .site-footer {
    gap: 10px 14px;
  }
}