* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #f6821f 0%, #fbad41 100%);
  padding: 20px;
  color: #1a1a1a;
}

.card {
  background: #fff;
  border-radius: 16px;
  padding: 40px;
  max-width: 600px;
  width: 100%;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.logo {
  font-size: 64px;
  text-align: center;
  margin-bottom: 16px;
}

h1 {
  text-align: center;
  font-size: 28px;
  margin-bottom: 8px;
  color: #1a1a1a;
}

.subtitle {
  text-align: center;
  color: #666;
  margin-bottom: 32px;
  line-height: 1.6;
}

.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.info-item {
  background: #f7f7f7;
  border-radius: 8px;
  padding: 12px 16px;
}

.info-label {
  font-size: 12px;
  color: #888;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.info-value {
  font-size: 16px;
  font-weight: 600;
  color: #1a1a1a;
  word-break: break-all;
}

.info-value.small {
  font-size: 12px;
  font-weight: 400;
}

.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 600;
}

.badge.ok {
  background: #d4f5dd;
  color: #1a7f37;
}

.badge.no {
  background: #ffe0e0;
  color: #c00;
}

.actions {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
}

.actions button,
.actions a {
  flex: 1;
  padding: 12px;
  border: none;
  border-radius: 8px;
  background: #f6821f;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  transition: background 0.2s;
}

.actions button:hover,
.actions a:hover {
  background: #e0701a;
}

details {
  border-top: 1px solid #eee;
  padding-top: 16px;
}

details summary {
  cursor: pointer;
  font-weight: 600;
  color: #555;
  margin-bottom: 12px;
}

details ul {
  padding-left: 20px;
  color: #666;
  line-height: 1.8;
}

code {
  background: #f0f0f0;
  padding: 2px 6px;
  border-radius: 4px;
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: 13px;
}

@media (max-width: 480px) {
  .info-grid {
    grid-template-columns: 1fr;
  }
  .card {
    padding: 24px;
  }
  h1 {
    font-size: 22px;
  }
}