:root {
  color-scheme: dark;
  --bg: #080808;
  --surface: #111111;
  --surface-2: #171717;
  --text: #f6f6f0;
  --muted: #a7a7a0;
  --line: rgba(255, 255, 255, .13);
  --accent: #c7ff38;
  --accent-dark: #0a0a0a;
  --max: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(circle at 82% 13%, rgba(199, 255, 56, .11), transparent 27rem),
    var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

.wrap { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; }

header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(8, 8, 8, .82);
  backdrop-filter: blur(16px);
}

nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: .05em;
}

.brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 9px;
  background: var(--accent);
  color: var(--accent-dark);
  font-size: 19px;
  line-height: 1;
  transform: rotate(-4deg);
}

.nav-links { display: flex; align-items: center; gap: 26px; color: #d6d6d0; font-size: .92rem; }
.nav-links a:hover, .nav-links a:focus-visible { color: var(--accent); }

.hero {
  min-height: calc(100vh - 72px);
  display: grid;
  align-items: center;
  padding: 88px 0 74px;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, .75fr);
  gap: clamp(48px, 8vw, 110px);
  align-items: end;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 26px;
  color: var(--accent);
  font-size: .88rem;
  font-weight: 700;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.eyebrow::before { content: ""; width: 38px; height: 2px; background: currentColor; }

h1 {
  max-width: 850px;
  margin: 0;
  font-size: clamp(3.6rem, 9vw, 8.4rem);
  line-height: .93;
  letter-spacing: -.075em;
  font-weight: 900;
}

h1 span { color: var(--accent); }

.hero-copy {
  max-width: 620px;
  margin: 35px 0 0;
  color: #c8c8c2;
  font-size: clamp(1.08rem, 2vw, 1.28rem);
}

.hero-side {
  padding: 28px 0 8px 30px;
  border-left: 1px solid var(--line);
}

.hero-side strong {
  display: block;
  margin-bottom: 10px;
  color: var(--accent);
  font-size: 3.6rem;
  line-height: 1;
  letter-spacing: -.06em;
}

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

.scroll-note {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 54px;
  color: #85857f;
  font-size: .82rem;
  letter-spacing: .08em;
}

.scroll-note::after { content: "↓"; color: var(--accent); font-size: 1.1rem; }

section { padding: 110px 0; border-top: 1px solid var(--line); }

.section-head {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 40px;
  margin-bottom: 56px;
  align-items: start;
}

.section-no { color: var(--accent); font-weight: 700; font-size: .86rem; letter-spacing: .12em; }

h2 {
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 4.8rem);
  line-height: 1.08;
  letter-spacing: -.055em;
}

.about-copy {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  margin-left: 33.33%;
}

.about-copy p { margin: 0; color: #b7b7b0; }

.service-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
}

.service {
  min-height: 260px;
  padding: 34px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: background .25s ease, transform .25s ease;
}

.service:nth-child(2n) { border-right: 0; }
.service:hover { background: var(--surface); transform: translateY(-3px); }
.service .num { color: var(--accent); font: 700 .82rem/1 system-ui, sans-serif; letter-spacing: .12em; }
.service h3 { margin: 62px 0 12px; font-size: 1.65rem; letter-spacing: -.03em; }
.service p { max-width: 450px; margin: 0; color: var(--muted); }

.focus-box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 430px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--surface);
}

.focus-visual {
  position: relative;
  min-height: 360px;
  overflow: hidden;
  background: var(--accent);
  color: var(--accent-dark);
}

.focus-word {
  position: absolute;
  inset: auto auto -8% -4%;
  font-size: clamp(8rem, 22vw, 18rem);
  font-weight: 950;
  line-height: .75;
  letter-spacing: -.12em;
  transform: rotate(-8deg);
}

.focus-ring {
  position: absolute;
  width: 245px;
  aspect-ratio: 1;
  right: -45px;
  top: -38px;
  border: 34px solid var(--accent-dark);
  border-radius: 50%;
  opacity: .92;
}

.focus-copy { padding: clamp(38px, 7vw, 78px); align-self: center; }
.focus-copy .tag { color: var(--accent); font-weight: 700; letter-spacing: .12em; font-size: .84rem; }
.focus-copy h2 { margin: 22px 0; font-size: clamp(2.2rem, 4vw, 4.2rem); }
.focus-copy p { margin: 0; color: #b9b9b2; font-size: 1.05rem; }

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

.belief {
  padding: 32px;
  min-height: 220px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: linear-gradient(145deg, var(--surface), rgba(17, 17, 17, .3));
}

.belief b { display: block; margin-bottom: 42px; color: var(--accent); font-size: 1.45rem; }
.belief h3 { margin: 0 0 10px; font-size: 1.3rem; }
.belief p { margin: 0; color: var(--muted); }

.contact { padding-bottom: 64px; }

.contact-panel {
  position: relative;
  padding: clamp(46px, 9vw, 96px);
  overflow: hidden;
  border-radius: 22px;
  background: var(--accent);
  color: var(--accent-dark);
}

.contact-panel::after {
  content: "X";
  position: absolute;
  right: -1rem;
  bottom: -5.8rem;
  font-size: 20rem;
  font-weight: 950;
  line-height: 1;
  opacity: .09;
  transform: rotate(-10deg);
}

.contact-panel h2 { position: relative; z-index: 1; max-width: 760px; }
.contact-panel p { position: relative; z-index: 1; max-width: 640px; margin: 24px 0 0; font-size: 1.1rem; }

footer {
  padding: 28px 0 38px;
  color: #7f7f79;
  font-size: .83rem;
}

.footer-row { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }

.icp-row { margin-top: 10px; text-align: center; }
.icp-link { text-decoration: underline; text-underline-offset: 3px; }

@media (max-width: 760px) {
  .wrap { width: min(calc(100% - 28px), var(--max)); }
  nav { min-height: 64px; }
  .nav-links a:not(:last-child) { display: none; }
  .hero { min-height: auto; padding: 76px 0 64px; }
  .hero-grid, .section-head, .focus-box { grid-template-columns: 1fr; }
  .hero-side { padding: 25px 0 0; border-left: 0; border-top: 1px solid var(--line); }
  .hero-side strong { font-size: 2.7rem; }
  section { padding: 82px 0; }
  .section-head { gap: 14px; margin-bottom: 38px; }
  .about-copy { grid-template-columns: 1fr; margin-left: 0; }
  .service-grid, .beliefs { grid-template-columns: 1fr; }
  .service { min-height: 220px; border-right: 0; padding: 28px 4px; }
  .service h3 { margin-top: 44px; }
  .focus-box { border-radius: 16px; }
  .focus-visual { min-height: 270px; }
  .belief { min-height: auto; }
  .belief b { margin-bottom: 30px; }
  .contact-panel { border-radius: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}