/* 整体区域 */
.feature-section {
  position: relative;
  width: 1200px;
  margin: 0px auto 0px;
  overflow: hidden;
  height: 196px;
  min-height: 0;
  isolation: isolate;
  background: #3d91e2 url("../images/feature-bg-abstract.png") center / 100% 100% no-repeat;
  border-top: 0;
  border-bottom: 0;
  border-left: 0;
  border-right: 0;
  box-shadow: 0 14px 26px rgba(53, 95, 132, 0.14);
}

.feature-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(20, 112, 188, 0.1));
  pointer-events: none;
  z-index: 0;
}

.feature-section::after {
  content: none;
  display: none;
}

.images-section{
  width:1200px;
  height:370px;
  margin: 0px auto 0px;
}

/* 统一蒙层，让整体更稳重 */
.feature-mask {
  display: none;
}

.feature-container {
  position: relative;
  z-index: 1;
  display: block;
  padding: 18px 30px 18px;
}

/* 标题 */
.section-heading {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 22px;
  padding: 0;
}

.section-heading h2 {
  margin: 0;
  font-size: 29px;
  font-weight: 600;
  color: #eef7fc;
  letter-spacing: 2px;
  line-height: 1;
  text-shadow: 0 1px 0 rgba(22, 64, 97, 0.2);
}

.section-heading h2::after {
  display: none;
}

.heading-line {
  position: relative;
  height: 8px;
}

.heading-line::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 1px;
  height: 1px;
  background: rgba(255, 255, 255, 0.32);
}

.heading-line::after {
  content: "";
  position: absolute;
  top: 5px;
  width: auto;
  left: 0;
  right: 0;
  height: 1px;
  width: 68px;
  background: rgba(229, 241, 250, 0.62);
}

.section-heading .heading-line:first-child::after {
  right: 14%;
}

.section-heading .heading-line:last-child::after {
  left: 14%;
}

/* 四个模块 */
.feature-list {
  position: relative;
  width: auto;
  margin-top: 18px;
  margin-left: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  background: rgba(34, 112, 172, 0.18);
  border-top: 1px solid rgba(255, 255, 255, 0.34);
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  border-left: 0;
  border-right: 0;
  border-radius: 0;
  overflow: hidden;
  box-shadow: 0 16px 24px rgba(31, 76, 111, 0.12), inset 0 1px 0 rgba(255, 255, 255, 0.22);
}

.feature-list::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 2px;
  background: linear-gradient(
    90deg,
    rgba(214, 232, 246, 0),
    rgba(225, 239, 249, 0.46) 12%,
    rgba(225, 239, 249, 0.46) 88%,
    rgba(214, 232, 246, 0)
  );
}

.feature-item {
  position: relative;
  min-height: 86px;
  padding: 14px 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0;
  text-decoration: none;
  color: #f3fbff;
  border-right: 1px solid rgba(255, 255, 255, 0.22);
  background: transparent;
  box-shadow: none;
  border-radius: 0;
  transition: background-color 0.22s ease, color 0.22s ease, transform 0.22s ease;
}

.feature-item::before {
  content: none;
  display: none;
}

.feature-item:last-child {
  border-right: 0;
}

.feature-item:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #ffffff;
  transform: translateY(-1px);
}

.feature-mark {
  display: none;
}

.feature-mark::before,
.feature-mark::after {
  display: none;
}

.feature-mark::before {
  top: 4px;
  width: 44px;
  height: 1px;
  background: rgba(242, 248, 252, 0.76);
}

.feature-mark::after {
  top: 0;
  width: 8px;
  height: 8px;
  border: 1px solid rgba(244, 249, 253, 0.86);
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
}

.feature-name {
  font-size: 31px;
  font-weight: 600;
  letter-spacing: 1.4px;
  text-shadow: 0 1px 0 rgba(17, 49, 74, 0.16);
  color: inherit;
  line-height: 1.18;
  text-align: center;
  position: static;
  width: auto;
  padding: 0;
}

.feature-name::after {
  display: none;
}

/* 响应式 */
@media (max-width: 1240px) {
  .feature-section {
    width: calc(100% - 24px);
  }
}

@media (max-width: 900px) {
  .feature-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0;
  }

  .feature-item:nth-child(2n) {
    border-right: 0;
  }

  .feature-item:nth-child(n + 3) {
    border-top: 1px solid rgba(255, 255, 255, 0.14);
  }
}

@media (max-width: 540px) {
  .feature-section {
    height: 196px;
  }

  .feature-container {
    padding: 14px 16px;
  }

  .section-heading {
    gap: 12px;
  }

  .section-heading h2 {
    font-size: 22px;
    letter-spacing: 2px;
  }

  .heading-line::after {
    width: 34px;
  }

  .feature-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0;
    margin-top: 14px;
  }

  .feature-item {
    min-height: 56px;
    padding: 10px 14px;
    border-right: 0;
  }

  .feature-item:nth-child(odd) {
    border-right: 1px solid rgba(255, 255, 255, 0.14);
  }

  .feature-item:nth-child(n + 3) {
    border-top: 1px solid rgba(255, 255, 255, 0.14);
  }

  .feature-mark {
    display: none;
  }

  .feature-name {
    font-size: 22px;
    letter-spacing: 0.5px;
    text-align: center;
  }
}