:root {
  --bg-ink: #07111f;
  --bg-night: #0d1728;
  --card: rgba(255, 255, 255, 0.08);
  --card-strong: rgba(255, 255, 255, 0.13);
  --line: rgba(255, 255, 255, 0.18);
  --text: #f5fbff;
  --muted: #a9bbcb;
  --cyan: #29d7ff;
  --violet: #7657ff;
  --mint: #75f2c2;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.42);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  font-family: "Avenir Next", "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", sans-serif;
  background:
    radial-gradient(circle at 16% 12%, rgba(41, 215, 255, 0.22), transparent 30rem),
    radial-gradient(circle at 82% 4%, rgba(118, 87, 255, 0.24), transparent 28rem),
    linear-gradient(145deg, var(--bg-ink), var(--bg-night) 54%, #060a12);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  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: 44px 44px;
  mask-image: linear-gradient(to bottom, black, transparent 80%);
}

a {
  color: inherit;
}

.page-shell,
.document-shell {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.page-shell {
  padding: 72px 0 48px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(300px, 0.7fr);
  gap: 28px;
  align-items: stretch;
}

.hero__copy,
.status-card,
.panel,
.section-card,
.contact-band,
.document-card {
  border: 1px solid var(--line);
  background: linear-gradient(145deg, var(--card), rgba(255, 255, 255, 0.035));
  box-shadow: var(--shadow);
  backdrop-filter: blur(28px);
}

.hero__copy {
  position: relative;
  overflow: hidden;
  padding: clamp(34px, 7vw, 72px);
  border-radius: 34px;
}

.hero__copy::after {
  position: absolute;
  right: -82px;
  bottom: -110px;
  width: 300px;
  height: 300px;
  content: "";
  border-radius: 999px;
  background: radial-gradient(circle, rgba(41, 215, 255, 0.36), rgba(118, 87, 255, 0.08) 52%, transparent 72%);
  animation: floatGlow 7s ease-in-out infinite alternate;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--mint);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 18px;
  font-size: clamp(3rem, 8vw, 6.5rem);
  line-height: 0.92;
  letter-spacing: -0.08em;
}

h2 {
  margin-bottom: 12px;
  font-size: clamp(1.35rem, 2.6vw, 2rem);
  letter-spacing: -0.04em;
}

.hero__lead {
  max-width: 660px;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.32rem);
  line-height: 1.8;
}

.hero__actions,
.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-weight: 800;
  text-decoration: none;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

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

.button--primary {
  border-color: transparent;
  color: #03101a;
  background: linear-gradient(135deg, var(--mint), var(--cyan));
}

.button--ghost {
  background: rgba(255, 255, 255, 0.06);
}

.status-card {
  position: relative;
  overflow: hidden;
  min-height: 330px;
  padding: 30px;
  border-radius: 34px;
}

.status-card__halo {
  width: 138px;
  height: 138px;
  margin: 10px 0 34px auto;
  border: 1px solid rgba(41, 215, 255, 0.42);
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(117, 242, 194, 0.9), transparent 12%),
    radial-gradient(circle, rgba(41, 215, 255, 0.32), transparent 62%);
  box-shadow: 0 0 50px rgba(41, 215, 255, 0.34);
}

.status-card__label {
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.status-card a {
  font-size: 1.18rem;
  font-weight: 800;
  text-decoration: none;
}

.status-card__note,
.panel p,
.contact-band p,
.document-card p,
.faq-list p {
  color: var(--muted);
  line-height: 1.8;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin: 22px 0;
}

.panel,
.section-card,
.contact-band {
  border-radius: 28px;
}

.panel {
  padding: 26px;
}

.panel__icon {
  display: inline-grid;
  width: 42px;
  height: 42px;
  margin-bottom: 24px;
  place-items: center;
  border-radius: 14px;
  color: #03101a;
  font-weight: 900;
  background: linear-gradient(135deg, var(--cyan), var(--mint));
}

.section-card {
  padding: clamp(26px, 5vw, 46px);
}

.faq-list {
  display: grid;
  gap: 12px;
}

details {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.055);
}

summary {
  cursor: pointer;
  padding: 18px 20px;
  font-weight: 800;
}

details p {
  padding: 0 20px 18px;
}

.contact-band {
  display: flex;
  gap: 24px;
  align-items: center;
  justify-content: space-between;
  margin-top: 22px;
  padding: clamp(26px, 5vw, 42px);
}

.site-footer {
  display: flex;
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 0 0 42px;
  gap: 18px;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
}

.site-footer a {
  text-decoration: none;
}

.document-shell {
  padding: 48px 0;
}

.back-link {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--muted);
  text-decoration: none;
}

.document-card {
  padding: clamp(28px, 6vw, 62px);
  border-radius: 34px;
}

.document-card h1 {
  font-size: clamp(2.7rem, 7vw, 5.5rem);
}

.document-card h2 {
  margin-top: 34px;
}

.muted {
  color: var(--muted);
}

@keyframes floatGlow {
  from {
    transform: translate3d(-12px, 8px, 0) scale(0.96);
  }
  to {
    transform: translate3d(18px, -18px, 0) scale(1.06);
  }
}

@media (max-width: 820px) {
  .page-shell,
  .document-shell,
  .site-footer {
    width: min(100% - 28px, 1120px);
  }

  .page-shell {
    padding-top: 34px;
  }

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

  .status-card {
    min-height: 260px;
  }

  .contact-band,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}