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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: radial-gradient(1200px 800px at 10% 0%, #1a1a33 0%, #0f0f1a 60%, #0b0b15 100%);
  min-height: 100vh;
  color: #e8e8f0;
  line-height: 1.6;
}

.app-root {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 48px;
  padding: 24px 32px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(108, 122, 224, 0.15);
  border-radius: 24px;
  backdrop-filter: blur(12px);
}

.app-header-left .app-title {
  font-size: 32px;
  font-weight: 600;
  letter-spacing: 1px;
  background: linear-gradient(135deg, #6c7ae0 0%, #b06be0 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 6px;
}

.app-header-left .app-subtitle {
  font-size: 14px;
  color: #8a8aa8;
  letter-spacing: 0.5px;
}

.app-header-right .status-tag {
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 13px;
  background: rgba(108, 122, 224, 0.12);
  color: #a8b4ff;
  border: 1px solid rgba(108, 122, 224, 0.25);
}

.app-header-right .status-tag.ok {
  background: rgba(0, 216, 167, 0.1);
  color: #00d8a7;
  border-color: rgba(0, 216, 167, 0.3);
}

.app-header-right .status-tag.err {
  background: rgba(255, 80, 100, 0.1);
  color: #ff8595;
  border-color: rgba(255, 80, 100, 0.3);
}

.kit-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.kit-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 80px 0;
  color: #8a8aa8;
  font-size: 15px;
}

.kit-card {
  position: relative;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 22px;
  padding: 28px;
  cursor: pointer;
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
              border-color 0.3s ease,
              background 0.3s ease,
              box-shadow 0.35s ease;
  backdrop-filter: blur(8px);
  overflow: hidden;
}

.kit-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(108, 122, 224, 0) 0%, rgba(176, 107, 224, 0) 100%);
  transition: opacity 0.4s ease;
  opacity: 0;
  z-index: 0;
}

.kit-card:hover {
  transform: translateY(-6px);
  border-color: rgba(108, 122, 224, 0.35);
  background: rgba(255, 255, 255, 0.06);
  box-shadow: 0 20px 40px rgba(108, 122, 224, 0.15);
}

.kit-card:hover::before {
  opacity: 1;
  background: linear-gradient(135deg, rgba(108, 122, 224, 0.08) 0%, rgba(176, 107, 224, 0.04) 100%);
}

.kit-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  background: linear-gradient(135deg, rgba(108, 122, 224, 0.22) 0%, rgba(176, 107, 224, 0.18) 100%);
  border: 1px solid rgba(108, 122, 224, 0.3);
  margin-bottom: 18px;
  position: relative;
  z-index: 1;
}

.kit-name {
  font-size: 19px;
  font-weight: 600;
  color: #f0f0f8;
  margin-bottom: 8px;
  position: relative;
  z-index: 1;
}

.kit-desc {
  font-size: 13.5px;
  color: #9b9bb5;
  line-height: 1.7;
  position: relative;
  z-index: 1;
}

.kit-arrow {
  margin-top: 18px;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: #a8b4ff;
  position: relative;
  z-index: 1;
  opacity: 0.75;
  transition: gap 0.3s ease, opacity 0.3s ease;
}

.kit-card:hover .kit-arrow {
  gap: 12px;
  opacity: 1;
}

@media (max-width: 600px) {
  .app-root { padding: 20px 16px 60px; }
  .app-header {
    padding: 18px 20px;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .app-header-left .app-title { font-size: 24px; }
  .kit-grid { grid-template-columns: 1fr; gap: 16px; }
  .kit-card { padding: 22px; }
}