:root {
  color-scheme: dark;
  --bg: #07090b;
  --panel: rgba(13, 17, 20, 0.82);
  --gold: #e8bf67;
  --gold-strong: #ffd98a;
  --cyan: #50d6ff;
  --text: #f4f0e6;
  --muted: #9da7ad;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  font-family:
    Inter, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  background:
    linear-gradient(180deg, rgba(3, 5, 7, 0.12), #07090b 68%),
    url("./assets/bg-desktop.png") center top / cover no-repeat,
    var(--bg);
  color: var(--text);
  letter-spacing: 0;
}

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

.portal {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 28px;
}

.hero-card {
  width: min(760px, 100%);
  padding: 28px;
  border: 1px solid rgba(232, 191, 103, 0.22);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(17, 22, 26, 0.9), rgba(6, 8, 10, 0.76));
  box-shadow: 0 24px 90px rgba(0, 0, 0, 0.46);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 46px;
}

.brand-mark {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: 8px;
  background: linear-gradient(135deg, #f6ca73, #876325);
  color: #101010;
  font-weight: 900;
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--gold-strong);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 14px;
  font-size: clamp(34px, 7vw, 62px);
  line-height: 1.08;
  letter-spacing: 0;
}

.desc {
  max-width: 620px;
  margin: 0 0 24px;
  color: #c6cdd1;
  font-size: 16px;
  line-height: 1.75;
}

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

.line-card {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 12px;
  align-items: center;
  min-height: 82px;
  padding: 16px;
  overflow: hidden;
  border: 1px solid rgba(232, 191, 103, 0.24);
  border-radius: 8px;
  background: rgba(12, 16, 18, 0.84);
}

.line-card::after {
  position: absolute;
  right: -44px;
  bottom: -58px;
  width: 130px;
  height: 130px;
  border-radius: 999px;
  background: rgba(80, 214, 255, 0.13);
  content: "";
}

.line-card.primary {
  background: linear-gradient(135deg, rgba(232, 191, 103, 0.24), rgba(80, 214, 255, 0.09));
}

.line-card span {
  color: #e9eef0;
  font-weight: 800;
}

.line-card strong {
  color: var(--gold-strong);
  font-size: 28px;
  line-height: 1;
}

.line-card em {
  min-width: 74px;
  padding: 6px 9px;
  border-radius: 999px;
  background: rgba(80, 214, 255, 0.12);
  color: #bfefff;
  font-size: 12px;
  font-style: normal;
  font-weight: 800;
  text-align: center;
}

.quick-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.quick-actions a {
  display: grid;
  min-height: 52px;
  place-items: center;
  border: 1px solid rgba(232, 191, 103, 0.26);
  border-radius: 8px;
  background: rgba(232, 191, 103, 0.12);
  color: var(--gold-strong);
  font-weight: 800;
}

.notice {
  margin: 18px 0 0;
  color: #7f8a90;
  font-size: 13px;
  line-height: 1.7;
  text-align: center;
}

@media (max-width: 620px) {
  body {
    background:
      linear-gradient(180deg, rgba(3, 5, 7, 0.12), #07090b 62%),
      url("./assets/bg-mobile.png") center top / cover no-repeat,
      var(--bg);
  }

  .portal {
    align-items: start;
    padding: 14px;
  }

  .hero-card {
    margin-top: 22px;
    padding: 18px;
  }

  .brand {
    margin-bottom: 36px;
  }

  .line-card {
    grid-template-columns: 1fr;
    gap: 8px;
    min-height: 96px;
  }

  .line-card strong {
    font-size: 30px;
  }

  .line-card em {
    width: fit-content;
  }
}