/* 过渡页 - 正规入口，中性风格 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
}

.gate-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: linear-gradient(180deg, #f8fafc 0%, #e2e8f0 100%);
  color: #334155;
}

.gate-card {
  width: 100%;
  max-width: 420px;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  padding: 48px 32px;
  text-align: center;
}

.gate-logo {
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
  border-radius: 16px;
  object-fit: contain;
}

.gate-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: #1e293b;
  margin-bottom: 32px;
  letter-spacing: 0.02em;
}

.gate-subtitle {
  font-size: 0.9375rem;
  color: #64748b;
  margin-bottom: 32px;
  line-height: 1.6;
}

.gate-desc {
  font-size: 0.875rem;
  color: #94a3b8;
  line-height: 1.7;
  margin-bottom: 32px;
}

.gate-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 280px;
  height: 48px;
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  color: #fff;
  font-size: 1rem;
  font-weight: 500;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  text-decoration: none;
  transition: opacity 0.2s, transform 0.2s;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.gate-btn:hover {
  opacity: 0.95;
  transform: translateY(-1px);
}

.gate-btn:active {
  transform: translateY(0);
}

.gate-footer {
  margin-top: 32px;
  font-size: 0.75rem;
  color: #94a3b8;
}