.section {
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.08);
}
/* ---------------------------顶部图片----------------------------- */
.smart_vessel-hero {
  height: 100vh;
  min-height: 56.25vw;
}
.smart_vessel-hero-container {
  width: 100%;
  height: 100%;
  /* background: url("/assets/images/solution/marine_power_system-hero.png")
      no-repeat center center; */
  background: url("/assets/images/solution/smart_vessel_system-hero.webp");
  overflow: hidden;
  background-repeat: no-repeat;
  background-position: top;
  background-size: cover;
}
.hero-title-box {
  position: absolute;
  top: 10%;
  left: 120px;
  color: #fff;
}
.hero-title-box-title {
  font-size: 3.5rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  margin: 0;
  /* 添加文字阴影 */
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}
.hero-title-box-subtitle {
  font-size: 1.5rem;
  margin-top: 10px;
  letter-spacing: 0.12em;
  /* 添加文字阴影 */
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.system-list-box {
  position: absolute;
  top: 60%;
  transform: translate(0, -50%);
  left: 50px;
}
.system-list-box-b {
  display: flex;
  gap: 40px;
  margin-bottom: 40px;
}
.system-list-box-b-item {
  width: 400px;
  /* 宽高比16/9 */
  aspect-ratio: 16 / 9;
  background-image: var(--img);
  background-size: cover;
  background-repeat: no-repeat;
  border-radius: 5px;
  overflow: hidden;

  /* 左上角斜切 */
  clip-path: polygon(24px 0, 100% 0, 100% 100%, 0 100%, 0 24px);
}
.system-item-bg {
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 1), rgba(0, 0, 0, 0));
}
.system-item-t {
  color: #fff;
  font-size: 24px;
  text-align: center;
  padding: 20px 25px;
  /* 文字间隔 */
  letter-spacing: 0.12em;
  /* 添加文字阴影 */
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}




.system-but-a {
  display: inline-flex;
  position: absolute;
  right: 10%;
  top: 50%;
  transform: translate(0, -50%);
}

.system-but-a-item {
  position: relative;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  text-decoration: none;
  background-color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}


/* hover 状态 */
.system-but-a-item:hover {
  transform: scale(1.03);
}