:root {
  --ink: #f4f8ff;
  --muted: #9aabc3;
  --surface: rgba(11, 27, 48, 0.78);
  --line: rgba(119, 190, 231, 0.2);
  --cyan: #31d6eb;
  --cyan-soft: #8ceef5;
  --pink: #ff6f9f;
  --gold: #ffd933;
  --navy: #020814;
  --deep: #061327;
  --font-geist-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC";
  --font-geist-mono: "SFMono-Regular", "SF Mono", Menlo;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 15% 8%, rgba(49, 214, 235, 0.1), transparent 27rem),
    radial-gradient(circle at 84% 24%, rgba(255, 111, 159, 0.08), transparent 24rem),
    radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.7) 0 1px, transparent 1.5px),
    radial-gradient(circle at 78% 12%, rgba(255, 255, 255, 0.5) 0 1px, transparent 1.5px),
    linear-gradient(155deg, var(--navy), var(--deep) 54%, #03101c);
  font-family: var(--font-geist-sans), "PingFang SC", "Noto Sans CJK SC", sans-serif;
}

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

a:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 4px;
}

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

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 84px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 17px;
  font-weight: 750;
  letter-spacing: 0.01em;
}

.brand-mark {
  position: relative;
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 2px solid var(--cyan-soft);
  border-radius: 50%;
  box-shadow: 0 0 18px rgba(49, 214, 235, 0.34), inset 0 0 12px rgba(49, 214, 235, 0.2);
}

.brand-mark::before,
.brand-mark::after {
  position: absolute;
  width: 9px;
  height: 5px;
  content: "";
  background: var(--pink);
  clip-path: polygon(0 50%, 100% 0, 100% 100%);
}

.brand-mark::before {
  left: 6px;
}

.brand-mark::after {
  right: 6px;
  transform: rotate(180deg);
}

.core {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 10px rgba(255, 217, 51, 0.8);
}

.nav-links {
  display: flex;
  gap: 30px;
  color: var(--muted);
  font-size: 14px;
}

.nav-links a:hover,
.footer a:hover,
.language-nav a:hover {
  color: var(--cyan-soft);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(330px, 0.92fr);
  align-items: center;
  min-height: 650px;
  gap: 48px;
  padding: 72px 0 80px;
}

.eyebrow {
  margin: 0 0 22px;
  color: var(--cyan-soft);
  font-family: var(--font-geist-mono), monospace;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.hero h1 {
  max-width: 700px;
  margin: 0 0 28px;
  font-size: clamp(54px, 7vw, 88px);
  line-height: 0.98;
  letter-spacing: -0.06em;
}

.hero h1 span {
  display: block;
  margin-top: 16px;
  color: var(--muted);
  font-size: 0.38em;
  font-weight: 540;
  letter-spacing: 0.01em;
}

.lede {
  max-width: 650px;
  margin: 0;
  color: #cdd9e8;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.75;
}

.lede.english {
  margin-top: 9px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 36px;
}

.primary-action,
.secondary-action,
.contact-action {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border-radius: 14px;
  font-weight: 700;
}

.primary-action,
.contact-action {
  color: #001117;
  background: var(--cyan);
  box-shadow: 0 12px 34px rgba(49, 214, 235, 0.18);
}

.secondary-action {
  border: 1px solid var(--line);
  color: #dce7f4;
  background: rgba(14, 31, 51, 0.55);
}

.primary-action:hover,
.contact-action:hover {
  background: var(--cyan-soft);
}

.secondary-action:hover {
  border-color: rgba(140, 238, 245, 0.45);
}

.watch-art {
  position: relative;
  width: min(430px, 100%);
  aspect-ratio: 0.83;
  justify-self: end;
  overflow: hidden;
  border: 1px solid rgba(140, 238, 245, 0.26);
  border-radius: 34% / 26%;
  background:
    radial-gradient(circle at 50% 43%, rgba(49, 214, 235, 0.13), transparent 32%),
    linear-gradient(145deg, rgba(15, 38, 64, 0.94), rgba(3, 13, 28, 0.96));
  box-shadow: 0 32px 90px rgba(0, 0, 0, 0.38), inset 0 0 50px rgba(49, 214, 235, 0.06);
}

.orbit {
  position: absolute;
  top: 43%;
  left: 50%;
  border: 1px solid rgba(140, 238, 245, 0.22);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.orbit-one {
  width: 170px;
  height: 170px;
  box-shadow: 0 0 35px rgba(49, 214, 235, 0.1);
}

.orbit-two {
  width: 250px;
  height: 250px;
  border-style: dashed;
}

.core-cluster {
  position: absolute;
  top: 43%;
  left: 50%;
  display: flex;
  align-items: center;
  transform: translate(-50%, -50%);
}

.hero-core {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: radial-gradient(circle at 36% 32%, #fff7a0, var(--gold) 38%, #efae00);
  box-shadow: 0 0 40px rgba(255, 217, 51, 0.6);
}

.wing {
  width: 72px;
  height: 42px;
  background: linear-gradient(135deg, #ff8bb3, var(--pink));
  clip-path: polygon(0 50%, 100% 0, 76% 50%, 100% 100%);
  filter: drop-shadow(0 0 12px rgba(255, 111, 159, 0.25));
}

.wing-right {
  transform: rotate(180deg);
}

.board-lines {
  position: absolute;
  right: 13%;
  bottom: 7%;
  left: 13%;
  height: 24%;
  opacity: 0.34;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 16.666% 33.333%;
  mask-image: linear-gradient(to bottom, transparent, black 35%);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  padding: 0 0 96px;
}

.trust-grid article {
  min-height: 230px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--surface);
  backdrop-filter: blur(20px);
}

.card-number {
  color: var(--cyan);
  font-family: var(--font-geist-mono), monospace;
  font-size: 12px;
}

.trust-grid h2 {
  margin: 36px 0 12px;
  font-size: 25px;
}

.trust-grid p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 0 42px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.footer p {
  margin: 0;
}

.footer div {
  display: flex;
  gap: 24px;
}

.document-main {
  width: min(880px, calc(100% - 40px));
  margin: 0 auto;
}

.document-header {
  padding: 76px 0 52px;
  border-bottom: 1px solid var(--line);
}

.document-header h1 {
  margin: 0 0 18px;
  font-size: clamp(42px, 6vw, 70px);
  letter-spacing: -0.055em;
}

.document-header p {
  max-width: 680px;
  margin: 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}

.language-nav {
  position: sticky;
  z-index: 10;
  top: 0;
  display: flex;
  gap: 8px;
  padding: 14px 0;
  background: rgba(2, 8, 20, 0.9);
  backdrop-filter: blur(16px);
}

.language-nav a {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 13px;
}

.policy-section {
  padding: 58px 0;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 72px;
}

.policy-section h2 {
  margin: 0 0 8px;
  font-size: 30px;
  letter-spacing: -0.03em;
}

.policy-section h3 {
  margin: 34px 0 10px;
  font-size: 18px;
}

.effective-date {
  margin: 0 0 30px;
  color: var(--cyan-soft);
  font-family: var(--font-geist-mono), monospace;
  font-size: 12px;
}

.policy-section p,
.policy-section li {
  color: #c7d3e2;
  font-size: 16px;
  line-height: 1.85;
}

.policy-section ul {
  padding-left: 22px;
}

.policy-section li + li {
  margin-top: 10px;
}

.contact-panel {
  margin: 32px 0 4px;
  padding: 24px;
  border: 1px solid rgba(49, 214, 235, 0.28);
  border-radius: 18px;
  background: rgba(20, 54, 75, 0.55);
}

.contact-panel p {
  margin-top: 0;
}

.contact-action {
  min-height: 46px;
  font-size: 14px;
}

@media (max-width: 820px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .watch-art {
    width: min(420px, 92%);
    justify-self: center;
  }

  .trust-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .site-shell,
  .document-main {
    width: min(100% - 28px, 1180px);
  }

  .topbar {
    align-items: flex-start;
    gap: 18px;
    padding: 20px 0;
  }

  .nav-links {
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
    font-size: 12px;
  }

  .hero {
    padding-top: 56px;
  }

  .hero h1 {
    font-size: 54px;
  }

  .watch-art {
    border-radius: 30% / 22%;
  }

  .footer {
    flex-direction: column;
  }

  .language-nav {
    overflow-x: auto;
  }
}

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