:root {
  --ink: #f7f8fb;
  --muted: #a9afbd;
  --line: rgba(255, 255, 255, 0.12);
  --surface: #111827;
  --surface-soft: #182132;
  --accent: #ff6b35;
  --accent-bright: #ff9b6f;
  --green: #8cdd6b;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: #0c1320;
  color: var(--ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

main {
  min-height: 100vh;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 22%),
    var(--surface);
}

.site-header {
  position: absolute;
  z-index: 20;
  top: 0;
  left: 50%;
  display: flex;
  width: min(1180px, calc(100% - 48px));
  height: 92px;
  align-items: center;
  justify-content: space-between;
  transform: translateX(-50%);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 11px;
  background: var(--accent);
  box-shadow: 0 10px 32px rgba(255, 107, 53, 0.24);
  color: #fff;
  font-size: 19px;
  font-weight: 800;
}

.brand-name {
  font-size: 17px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  color: #d4d8e1;
  font-size: 14px;
}

.site-nav a {
  transition: color 180ms ease, background 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: #fff;
}

.nav-action {
  padding: 11px 18px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
}

.nav-action:hover,
.nav-action:focus-visible {
  background: rgba(255, 255, 255, 0.08);
}

.hero {
  position: relative;
  display: grid;
  min-height: 760px;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 0.82fr);
  gap: 64px;
  align-items: center;
  padding: 156px max(24px, calc((100vw - 1180px) / 2)) 92px;
  isolation: isolate;
}

.hero::after {
  position: absolute;
  z-index: -2;
  right: -9%;
  bottom: -22%;
  width: 52vw;
  height: 52vw;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(140, 221, 107, 0.13), transparent 68%);
  content: "";
}

.hero-glow {
  position: absolute;
  z-index: -1;
  border-radius: 999px;
  filter: blur(2px);
  pointer-events: none;
}

.hero-glow-left {
  top: 132px;
  left: -150px;
  width: 390px;
  height: 390px;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.2), transparent 70%);
}

.hero-glow-right {
  top: -120px;
  right: 12%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(85, 128, 255, 0.12), transparent 70%);
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 640px;
}

.eyebrow {
  display: flex;
  margin: 0 0 24px;
  align-items: center;
  gap: 12px;
  color: var(--accent-bright);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.22em;
}

.eyebrow span {
  width: 32px;
  height: 1px;
  background: var(--accent);
}

.hero h1 {
  margin: 0;
  font-size: clamp(62px, 6.5vw, 96px);
  font-weight: 750;
  letter-spacing: -0.065em;
  line-height: 0.98;
}

.hero h1 em {
  background: linear-gradient(92deg, #fff 8%, #bec6d6 96%);
  background-clip: text;
  color: transparent;
  font-style: normal;
}

.hero-description {
  max-width: 570px;
  margin: 32px 0 0;
  color: var(--muted);
  font-size: 17px;
  letter-spacing: 0.015em;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  margin-top: 42px;
  align-items: center;
  gap: 30px;
}

.primary-action {
  display: inline-flex;
  min-width: 150px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 16px 20px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 18px 38px rgba(255, 107, 53, 0.18);
  font-size: 15px;
  font-weight: 700;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.primary-action:hover,
.primary-action:focus-visible {
  box-shadow: 0 22px 46px rgba(255, 107, 53, 0.3);
  transform: translateY(-2px);
}

.primary-action span {
  font-size: 18px;
}

.hero-actions p {
  display: flex;
  margin: 0;
  flex-direction: column;
  color: #7f8797;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 9px;
  letter-spacing: 0.18em;
  line-height: 1.5;
}

.hero-actions strong {
  color: #c7ccd6;
  font-size: 11px;
}

.hero-visual {
  position: relative;
  width: min(100%, 510px);
  aspect-ratio: 1;
  justify-self: end;
}

.hero-visual::before {
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0) 68%);
  content: "";
}

.orbit {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}

.orbit::after {
  position: absolute;
  top: 50%;
  left: -4px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 22px var(--green);
  content: "";
}

.orbit-outer {
  inset: 2%;
  animation: spin 24s linear infinite;
}

.orbit-inner {
  inset: 17%;
  border-style: dashed;
  animation: spin-reverse 32s linear infinite;
}

.orbit-inner::after {
  top: auto;
  right: 5%;
  bottom: 7%;
  left: auto;
  background: var(--accent);
  box-shadow: 0 0 22px var(--accent);
}

.visual-core {
  position: absolute;
  top: 50%;
  left: 50%;
  display: flex;
  width: 230px;
  height: 230px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 50%;
  background: rgba(22, 31, 47, 0.88);
  box-shadow:
    0 30px 80px rgba(0, 0, 0, 0.36),
    inset 0 0 56px rgba(255, 255, 255, 0.035);
  backdrop-filter: blur(14px);
}

.core-dot {
  width: 12px;
  height: 12px;
  margin-bottom: 20px;
  border: 3px solid rgba(255, 107, 53, 0.34);
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 6px rgba(255, 107, 53, 0.1);
}

.visual-core small {
  color: #8f97a8;
  font-size: 11px;
  letter-spacing: 0.15em;
}

.visual-core strong {
  margin-top: 8px;
  font-size: 34px;
  letter-spacing: -0.05em;
}

.visual-core p {
  margin: 9px 0 0;
  color: #aeb4c0;
  font-size: 12px;
}

.orbit-item {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 15px;
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 999px;
  background: rgba(17, 24, 39, 0.84);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.22);
  color: #d9dce4;
  font-size: 12px;
  backdrop-filter: blur(12px);
}

.orbit-item span {
  color: var(--accent-bright);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 9px;
}

.orbit-item-1 {
  top: 5%;
  left: 14%;
}

.orbit-item-2 {
  top: 25%;
  right: -2%;
}

.orbit-item-3 {
  bottom: 14%;
  right: 2%;
}

.orbit-item-4 {
  bottom: 8%;
  left: 2%;
}

.visual-status {
  position: absolute;
  top: 49%;
  left: -3%;
  display: flex;
  align-items: center;
  gap: 9px;
  color: #929aaa;
  font-size: 10px;
  letter-spacing: 0.08em;
}

.visual-status span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 14px rgba(140, 221, 107, 0.85);
}

.about {
  padding: 96px max(24px, calc((100vw - 1180px) / 2)) 116px;
  border-top: 1px solid var(--line);
  background: #f2f1ed;
  color: #172033;
}

.section-heading {
  display: grid;
  grid-template-columns: 0.5fr 1fr;
  gap: 40px;
  align-items: end;
}

.section-heading > p,
.statement > p {
  margin: 0;
  color: #7e8490;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 10px;
  letter-spacing: 0.18em;
}

.section-heading h2 {
  max-width: 620px;
  margin: 0;
  font-size: clamp(34px, 4vw, 54px);
  letter-spacing: -0.05em;
  line-height: 1.15;
}

.capability-grid {
  display: grid;
  margin-top: 70px;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid rgba(23, 32, 51, 0.17);
}

.capability-card {
  display: flex;
  min-height: 220px;
  flex-direction: column;
  justify-content: space-between;
  padding: 28px 30px 30px 0;
  border-right: 1px solid rgba(23, 32, 51, 0.15);
}

.capability-card + .capability-card {
  padding-left: 30px;
}

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

.capability-index {
  color: #ef6b3b;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
}

.capability-card h3 {
  margin: 0 0 13px;
  font-size: 24px;
  letter-spacing: -0.04em;
}

.capability-card p {
  max-width: 280px;
  margin: 0;
  color: #686f7d;
  font-size: 14px;
  line-height: 1.75;
}

.statement {
  padding: 110px max(24px, calc((100vw - 1180px) / 2)) 120px;
  background:
    radial-gradient(circle at 80% 30%, rgba(255, 107, 53, 0.13), transparent 30%),
    #111827;
}

.statement h2 {
  max-width: 920px;
  margin: 34px 0 0;
  font-size: clamp(38px, 5.2vw, 70px);
  font-weight: 650;
  letter-spacing: -0.055em;
  line-height: 1.22;
}

footer {
  display: flex;
  min-height: 150px;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 36px max(24px, calc((100vw - 1180px) / 2));
  border-top: 1px solid var(--line);
  background: #0b111c;
}

.error-page {
  display: flex;
  min-height: 100vh;
  flex-direction: column;
  justify-content: space-between;
  padding: 36px max(24px, calc((100vw - 1180px) / 2)) 72px;
  background:
    radial-gradient(circle at 78% 32%, rgba(255, 107, 53, 0.17), transparent 30%),
    #111827;
}

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

.error-content > p {
  margin: 0 0 24px;
  color: var(--accent-bright);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
}

.error-content h1 {
  margin: 0 0 42px;
  font-size: clamp(48px, 7vw, 92px);
  letter-spacing: -0.06em;
  line-height: 1.05;
}

.footer-brand .brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  font-size: 17px;
}

.footer-meta {
  display: flex;
  align-items: center;
  gap: 24px;
  color: #858d9c;
  font-size: 12px;
}

.footer-meta a {
  transition: color 180ms ease;
}

.footer-meta a:hover,
.footer-meta a:focus-visible {
  color: #fff;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes spin-reverse {
  to {
    transform: rotate(-360deg);
  }
}

@media (max-width: 960px) {
  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 56px;
    padding-top: 150px;
  }

  .hero-copy {
    max-width: 680px;
  }

  .hero-visual {
    width: min(100%, 520px);
    justify-self: center;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

@media (max-width: 720px) {
  .site-header {
    width: calc(100% - 36px);
    height: 76px;
  }

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

  .site-nav > a:first-child {
    display: none;
  }

  .nav-action {
    padding: 9px 14px;
    font-size: 12px;
  }

  .hero {
    gap: 42px;
    padding: 126px 20px 76px;
  }

  .hero h1 {
    font-size: clamp(54px, 16vw, 72px);
    line-height: 1.03;
  }

  .hero-description {
    margin-top: 26px;
    font-size: 15px;
    line-height: 1.8;
  }

  .hero-actions {
    margin-top: 34px;
  }

  .hero-actions p {
    display: none;
  }

  .hero-visual {
    width: min(100%, 390px);
  }

  .visual-core {
    width: 180px;
    height: 180px;
  }

  .visual-core strong {
    font-size: 28px;
  }

  .visual-core p {
    font-size: 10px;
  }

  .orbit-item {
    padding: 8px 11px;
    font-size: 10px;
  }

  .visual-status {
    display: none;
  }

  .about {
    padding: 72px 20px 82px;
  }

  .capability-grid {
    margin-top: 48px;
    grid-template-columns: 1fr;
  }

  .capability-card,
  .capability-card + .capability-card {
    min-height: 180px;
    padding: 24px 0;
    border-right: 0;
    border-bottom: 1px solid rgba(23, 32, 51, 0.15);
  }

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

  .statement {
    padding: 80px 20px 88px;
  }

  .statement h2 {
    margin-top: 26px;
    font-size: clamp(36px, 10.2vw, 52px);
  }

  footer {
    min-height: 190px;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding: 34px 20px;
  }

  .footer-meta {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}