.smart-city-page .smart-city-hero {
  position: relative;
  min-height: 480px;
  overflow: hidden;
  color: #fff;
  background: url("https://tx-cms.oss-cn-hangzhou.aliyuncs.com/website/minsun/assets/images/city/banner.png") center 48% / cover no-repeat;
}

.smart-city-hero-grid {
  position: absolute;
  inset: 0;
  opacity: .1;
  background-image:
    linear-gradient(#68cfff16 1px, transparent 1px),
    linear-gradient(90deg, #68cfff16 1px, transparent 1px);
  background-size: 58px 58px;
  mask-image: linear-gradient(90deg, transparent, #000 45%);
  pointer-events: none;
}

.city-pain {
  background: linear-gradient(180deg, #f7fbff, #fff 50%);
}

.city-pain-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px;
}

.city-pain-card {
  display: block;
  width: 384px;
  height: 461px;
  border-radius: 16px;
  object-fit: cover;
}

.city-architecture {
  background: #f5f9ff;
}

.city-arch-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-bottom: 80px;
}

.city-arch-grid article {
  box-sizing: border-box;
  flex: 1 1 0;
  min-width: 240px;
  padding: 0 0 24px;
  border-radius: 14px;
  background: #F3F9FF;
  box-shadow: 0 8px 24px #143c710c;
}

.city-arch-grid img {
  display: block;
  width: 100%;
  height: 207px;
  margin: 0 auto 16px;
  object-fit: contain;
}

.city-arch-grid h3 {
  margin: 0 0 10px;
  padding: 0 18px;
  color: #1d2b42;
  font-size: 20px;
  text-align: left;
}

.city-arch-grid p {
  margin: 0;
  padding: 0 18px;
  color: #6b7789;
  font-size: 15px;
  line-height: 1.75;
  text-align: left;
}

.city-showcase {
  margin: 0;
}

.city-showcase img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 16px;
  box-shadow: 0 16px 40px #143c7118;
}

.city-showcase figcaption {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 12px;
  color: #8490a2;
  font-size: 15px;
}

.city-showcase figcaption::before {
  flex-shrink: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #16ed8c;
  content: "";
}

.city-features {
  background: #fff;
}

.city-feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.city-feature-grid article {
  padding: 24px 22px;
  border: 1px solid #e5edf8;
  border-radius: 14px;
  background: #fbfcff;
  transition: transform .2s, box-shadow .2s, border-color .2s;
}

.city-feature-grid article:hover {
  transform: translateY(-3px);
  border-color: #c8daf8;
  box-shadow: 0 12px 28px #143c7112;
}

.city-feature-grid h3 {
  margin: 0 0 10px;
  color: #1d2b42;
  font-size: 19px;
}

.city-feature-grid p {
  margin: 0;
  color: #6b7789;
  font-size: 16px;
  line-height: 1.75;
}

.smart-city-page .contact-banner {
  margin-top: 0;
}

.smart-city-page .button-line {
  color: #315174;
  border: 1px solid #c5d0de;
  box-shadow: none;
}

@media (max-width: 960px) {
  .city-feature-grid {
    grid-template-columns: 1fr 1fr;
  }

  .smart-city-page .smart-city-hero {
    min-height: 280px;
  }
}

@media (max-width: 640px) {
  .city-feature-grid {
    grid-template-columns: 1fr;
  }

  .city-pain-card {
    width: min(384px, 100%);
    height: auto;
    aspect-ratio: 384 / 461;
  }

  .city-arch-grid article {
    flex: 1 1 100%;
    min-width: 0;
  }

  .city-arch-grid img {
    height: auto;
    aspect-ratio: 282 / 207;
  }
}