/* ========================================
   银川数据要素服务中心 2.0 - CTA横幅
   深色渐变背景
   ======================================== */

/* 板块容器 */
.cta {
  padding: 100px 0;
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
}

/* 背景装饰 */
.cta::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--color-accent-glow), transparent 70%);
  pointer-events: none;
}

.cta::after {
  content: '';
  position: absolute;
  bottom: -40%;
  left: -10%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(11, 95, 169, 0.1), transparent 70%);
  pointer-events: none;
}

/* 内容 */
.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}

.cta-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.cta-desc {
  font-size: var(--font-size-lg);
  color: var(--text-on-dark-secondary);
  margin-bottom: 40px;
  line-height: 1.8;
}

/* CTA专用按钮 */
.btn-cta {
  padding: 16px 40px;
  font-size: var(--font-size-base);
  font-weight: 700;
  letter-spacing: 1px;
}

.btn-cta:hover {
  box-shadow: 0 12px 40px rgba(11, 95, 169, 0.4);
  transform: translateY(-3px);
}

/* 响应式 */
@media (max-width: 640px) {
  .cta {
    padding: 60px 0;
  }

  .cta-desc {
    font-size: var(--font-size-base);
  }

  .btn-cta {
    padding: 14px 32px;
    font-size: var(--font-size-sm);
  }
}