* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(255,255,255,0.20), transparent 35%),
    radial-gradient(circle at bottom right, rgba(255,255,255,0.16), transparent 28%),
    linear-gradient(135deg, #1f2937 0%, #111827 45%, #0f172a 100%);
  color: #f9fafb;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.card {
  width: 100%;
  max-width: 820px;
  background: rgba(255, 255, 255, 0.10);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 24px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.30);
  overflow: hidden;
}

.hero {
  padding: 44px 32px 36px;
  text-align: center;
  border-bottom: 1px solid rgba(255,255,255,0.10);
  background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.02));
}

.badge {
  display: inline-block;
  margin-bottom: 16px;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #fde68a;
  background: rgba(250, 204, 21, 0.14);
  border: 1px solid rgba(250, 204, 21, 0.25);
}

h1 {
  margin: 0;
  font-size: clamp(30px, 5vw, 46px);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.content {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
  padding: 28px 28px 32px;
}

.panel {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 18px;
  padding: 22px 20px;
}

.panel h2 {
  margin: 0 0 14px;
  font-size: 20px;
  font-weight: 750;
}

.steps, .notes {
  margin: 0;
  padding-left: 20px;
  color: rgba(249, 250, 251, 0.92);
}

.steps li, .notes li {
  margin-bottom: 10px;
  line-height: 1.75;
}

.room-box {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.room-name {
  font-size: 24px;
  font-weight: 800;
  line-height: 1.4;
  color: #ffffff;
  padding: 16px 18px;
  border-radius: 16px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  word-break: break-word;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 6px;
}

.btn {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 14px;
  font-size: 15px;
  font-weight: 750;
  transition: transform 0.18s ease, box-shadow 0.18s ease, opacity 0.18s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  color: #111827;
  background: linear-gradient(135deg, #fcd34d 0%, #f59e0b 100%);
  box-shadow: 0 10px 24px rgba(245, 158, 11, 0.25);
}

.btn-secondary {
  color: #f9fafb;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
}

.footer {
  padding: 0 28px 28px;
  color: rgba(249, 250, 251, 0.70);
  font-size: 13px;
  line-height: 1.8;
  text-align: center;
}

.icp-link {
  color: rgba(249, 250, 251, 0.70);
  text-decoration: none;
}

.icp-link:hover {
  color: #fde68a;
  text-decoration: underline;
}

@media (max-width: 720px) {
  body {
    padding: 14px;
  }

  .content {
    grid-template-columns: 1fr;
    padding: 20px 20px 24px;
  }

  .hero {
    padding: 34px 22px 28px;
  }

  .footer {
    padding: 0 20px 22px;
  }
}