:root {
  --bg-top: #102741;
  --bg-mid: #0a1d31;
  --bg-bottom: #06111d;
  --panel: rgba(6, 19, 31, 0.83);
  --panel-soft: rgba(10, 26, 41, 0.82);
  --line: rgba(189, 215, 239, 0.22);
  --text: #f7f8fc;
  --muted: #c0d0e0;
  --red-1: #3a0f11;
  --red-2: #7d1114;
  --red-3: #ca1918;
  --gold: #f1c35a;
  --gold-soft: #f4dfab;
  --link: #f6d57f;
  --shadow: 0 26px 80px rgba(0, 0, 0, 0.4);
}

* {
  box-sizing: border-box;
}

html {
  background: #06101b;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "IBM Plex Sans", "Noto Sans JP", sans-serif;
  background:
    radial-gradient(circle at 14% 18%, rgba(108, 160, 209, 0.28), transparent 22%),
    radial-gradient(circle at 78% 20%, rgba(255, 255, 255, 0.12), transparent 16%),
    radial-gradient(circle at 50% 88%, rgba(44, 103, 156, 0.24), transparent 28%),
    linear-gradient(180deg, var(--bg-top) 0%, var(--bg-mid) 56%, var(--bg-bottom) 100%);
  overflow-x: hidden;
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
}

body::before {
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 140px 140px;
  opacity: 0.13;
}

body::after {
  background:
    linear-gradient(130deg, transparent 0%, rgba(126, 183, 226, 0.1) 44%, transparent 50%),
    radial-gradient(circle at 62% 24%, rgba(255, 255, 255, 0.08), transparent 18%);
  mix-blend-mode: screen;
  opacity: 0.45;
}

a {
  color: var(--link);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.page-shell {
  position: relative;
  min-height: 100vh;
}

.top-banner {
  position: relative;
  padding: 0.7rem 1rem 1.8rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  background:
    linear-gradient(180deg, rgba(8, 14, 22, 0.96), rgba(8, 14, 22, 0.78)),
    linear-gradient(90deg, var(--red-1), var(--red-2) 46%, var(--red-3));
  box-shadow: inset 0 -24px 38px rgba(0, 0, 0, 0.33);
}

.top-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), transparent 42%);
  pointer-events: none;
}

.top-banner::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 14px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.32), transparent);
  opacity: 0.58;
}

.prop-note {
  width: fit-content;
  margin: 0 auto 0.75rem;
  padding: 0.35rem 0.7rem;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 999px;
  background: rgba(4, 12, 21, 0.42);
  color: var(--gold-soft);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.title-wrap {
  max-width: 1440px;
  margin: 0 auto;
  text-align: center;
}

.eyebrow {
  margin: 0 0 0.45rem;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.9rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2.7rem, 6.6vw, 5.9rem);
  line-height: 0.93;
  font-weight: 900;
  letter-spacing: 0.045em;
  text-transform: uppercase;
  text-wrap: balance;
}

.hero {
  width: min(1320px, calc(100% - 1.25rem));
  margin: 0 auto;
  padding: 1.2rem 0 2.75rem;
}

.domain-strip {
  padding: 1rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(8, 26, 42, 0.74);
  text-align: center;
  box-shadow: var(--shadow);
}

.domain-name {
  margin: 0;
  color: var(--gold-soft);
  font-size: clamp(1.4rem, 3vw, 2.1rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.domain-subline {
  max-width: 980px;
  margin: 0.45rem auto 0;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.5;
}

.crest-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(220px, 280px));
  justify-content: center;
  gap: 1.1rem;
  margin: 1.3rem 0 1.45rem;
}

.crest-card {
  margin: 0;
  padding: 1rem 0.9rem 0.85rem;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(10, 31, 50, 0.84), rgba(6, 17, 29, 0.92));
  text-align: center;
  box-shadow: var(--shadow);
}

.crest-image {
  display: block;
  width: min(210px, 100%);
  margin: 0 auto 0.7rem;
  filter: drop-shadow(0 16px 24px rgba(0, 0, 0, 0.35));
}

.crest-card figcaption {
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.4;
}

.notice-panel {
  position: relative;
  padding: 1.9rem 1.5rem 1.7rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(9, 31, 50, 0.85), rgba(6, 18, 31, 0.95)),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04), transparent);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.notice-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 10% 16%, rgba(255, 255, 255, 0.12), transparent 20%),
    radial-gradient(circle at 80% 10%, rgba(242, 195, 90, 0.08), transparent 16%),
    linear-gradient(135deg, transparent 0%, rgba(118, 164, 205, 0.08) 46%, transparent 52%);
  pointer-events: none;
}

.notice-kicker {
  position: relative;
  margin: 0 0 1rem;
  color: var(--gold-soft);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-align: center;
  text-transform: uppercase;
}

.copy {
  position: relative;
  max-width: 1020px;
  margin: 0 auto;
  text-align: center;
}

.copy + .copy {
  margin-top: 1.7rem;
  padding-top: 1.55rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.copy p {
  margin: 0 0 1rem;
  font-size: clamp(1.05rem, 1.65vw, 1.32rem);
  line-height: 1.58;
}

.copy .lead {
  font-size: clamp(1.18rem, 2vw, 1.65rem);
  font-weight: 700;
}

.notice-list {
  width: fit-content;
  max-width: 100%;
  margin: 1rem auto 1.2rem;
  padding-left: 1.5rem;
  text-align: left;
}

.notice-list li {
  margin: 0.35rem 0;
  font-size: clamp(1.02rem, 1.45vw, 1.24rem);
  font-weight: 600;
}

.details-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.3rem;
}

.detail-card {
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel-soft);
  box-shadow: var(--shadow);
}

.detail-card h2 {
  margin: 0 0 0.7rem;
  color: var(--gold-soft);
  font-size: 0.98rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.detail-card p {
  margin: 0;
  line-height: 1.55;
}

.bottom-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.9rem;
  margin-top: 1.35rem;
}

.bar-link,
.bar-note {
  padding: 0.85rem 1rem;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(4, 14, 24, 0.84);
  box-shadow: var(--shadow);
}

.bar-link {
  font-weight: 700;
}

.bar-note {
  color: var(--muted);
  font-size: 0.92rem;
}

.footer {
  padding: 1rem 1rem 1.8rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.88rem;
}

.footer p {
  margin: 0.45rem 0;
}

@media (max-width: 1080px) {
  .details-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .hero {
    width: min(1320px, calc(100% - 0.7rem));
    padding-top: 0.9rem;
  }

  .top-banner {
    padding-inline: 0.75rem;
  }

  .domain-strip,
  .crest-card,
  .notice-panel,
  .detail-card,
  .bar-link,
  .bar-note {
    border-radius: 16px;
  }

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

  .notice-panel {
    padding: 1.35rem 1rem 1.25rem;
  }

  .copy,
  .copy p {
    text-align: left;
  }

  .notice-kicker {
    text-align: left;
  }

  .notice-list {
    width: 100%;
  }

  .bottom-bar {
    flex-direction: column;
    align-items: stretch;
  }
}