/* 产品中心 */
body {
  background-color: #f9fafb;
}
.banner {
  height: 435px;
  display: flex;
  align-items: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.banner-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}
.banner .wrap {
  position: relative;
  z-index: 1;
}
.banner .text1 {
  font-size: 20px;
}
.banner .text2 {
  font-size: 48px;
  animation-delay: 0.5s;
  -webkit-animation-delay: 0.5s;
}
.banner .text1,
.banner .text2 {
  opacity: 0;
  animation: fadeInUp 1s forwards;
  -webkit-animation: fadeInUp 1s forwards;
}
.product-tab {
  display: flex;
  justify-content: space-between;
  height: 80px;
  line-height: 80px;
  background-color: #fff;
  border-radius: 100px;
  margin: 40px 0;
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}
.product-tab li {
  font-size: 20px;
  border-radius: 100px;
  width: 25%;
  cursor: pointer;
  position: relative;
  z-index: 2;
  text-align: center;
  transition: color 0.35s ease;
  user-select: none;
}
.product-tab li.current {
  color: #fff;
}
/* 滑动背景指示器 */
.product-tab .tab-slider {
  position: absolute;
  top: 0;
  bottom: 0;
  z-index: 1;
  background-color: var(--primary-color);
  border-radius: 100px;
  transition:
    left 0.45s cubic-bezier(0.25, 0.8, 0.25, 1.2),
    width 0.45s cubic-bezier(0.25, 0.8, 0.25, 1.2),
    background-color 0.3s ease;
  box-shadow: 0 4px 15px rgba(2, 132, 199, 0.35);
}
/* 点击时的脉冲动画 */
.product-tab .tab-slider.pulse {
  animation: tabPulse 0.5s cubic-bezier(0.25, 0.8, 0.25, 1.2);
}
@keyframes tabPulse {
  0% {
    transform: scaleX(1);
  }
  40% {
    transform: scaleX(0.92);
  }
  100% {
    transform: scaleX(1);
  }
}
/* tab 文字 hover 微效 */
.product-tab li:not(.current):hover {
  color: var(--primary-color);
}
.product-item {
  background-color: #fff;
  padding: 30px;
  display: flex;
  justify-content: space-between;
  gap: 30px;
  border-radius: 25px;
  box-shadow: 0 20px 40px 0 rgba(14, 116, 185, 0.08);
  margin-bottom: 30px;
}
.product-item .img {
  width: 433px;
  height: 324px;
  overflow: hidden;
  flex-shrink: 0;
  border-radius: 20px;
  background: #eceef0;
  overflow: hidden;
}
.product-item .img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.product-item .col-r {
  padding-top: 30px;
}
.product-item .title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 15px;
  word-break: break-all;
}
.product-item .title a {
  color: #000;
  font-size: inherit;
  background: none;
  padding-right: 0;
  text-decoration: none;
}
.product-item .title a:hover {
  color: var(--primary-color);
}
.product-item .desc {
  height: 180px;
  font-size: 15px;
  line-height: 30px;
  color: #323f4d;
  display: -webkit-box;
  -webkit-line-clamp: 6;
  -webkit-box-orient: vertical;
  line-clamp: 2;
  overflow: hidden;
  margin-bottom: 15px;
  word-break: break-all;
}
.product-item a {
  color: var(--primary-color);
  font-size: 16px;
  background: url(../images/arrow_right.png) no-repeat right center;
  padding-right: 30px;
}
.product-wrap {
  display: flex;
  justify-content: space-between;
  padding: 30px 0 60px;
  gap: 32px;
}
.product-detail {
}
.product-sidebar {
  width: 300px;
  flex-shrink: 0;
}
.product-sidebar.is-sticky {
  position: fixed;
  top: 74px;
  right: 13.54%;
  width: 300px;
  z-index: 10;
}
.product-image {
  border-radius: 25px;
  background: radial-gradient(50% 50% at 50% 50%, #fff 0%, #e3e3e5 100%);
  height: 409px;
  text-align: center;
}
.product-image img {
  max-height: 100%;
}
.product-title-h1 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 30px;
  line-height: 32px;
}
.product-title-h2 {
  font-size: 24px;
  font-weight: 700;
  padding: 32px 0;
  background: url(../images/cones.png) no-repeat left center;
  padding-left: 30px;
}
.product-desc {
  font-size: 15px;
  line-height: 30px;
  margin-top: 20px;
}
.product-tips {
  display: flex;
  padding: 16px;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  align-self: stretch;
  border-radius: 20px;
  border: 1px solid #f3f4f6;
  background: #f3f7fb;
  margin-top: 30px;
}
.inspection-information {
  border: 1px solid #dee1e3;
  border-radius: 15px;
  font-size: 15px;
  overflow: hidden;
}
.inspection-information dt {
  background: #f3f7fb;
  font-weight: 700;
  display: flex;
  width: 100%;
  padding: 15px 28px;
}
.inspection-information dt > div:nth-child(1),
.inspection-information dd > div:nth-child(1) {
  width: 180px;
  font-weight: 700;
}
.inspection-information dt > div:nth-child(2),
.inspection-information dd > div:nth-child(2) {
  flex: 1;
  width: 0;
  word-wrap: break-word;
}
.inspection-information dd {
  display: flex;
  width: 100%;
  padding: 15px 28px;
  border-top: 1px solid #dee1e3;
}
.product-advantage {
  font-size: 15px;
  line-height: 32px;
  color: #111c26;
}
.product-advantage li {
  position: relative;
  padding-left: 15px;
}
.product-advantage li:before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  display: block;
  width: 4px;
  height: 18px;
  border-radius: 10px;
  background-color: var(--primary-color);
}
/* 咨询服务 */
.ps-consulting-service {
  border-radius: 20px;
  border: 1px solid #f3f4f6;
  background: #f3f7fb;
  padding: 32px;
  text-align: center;
}
.ps-consulting-service .title {
  font-size: 24px;
  font-weight: 700;
  border-bottom: 1px solid #dee1e3;
  padding-bottom: 10px;
  margin-bottom: 15px;
}
.ps-consulting-service p {
  font-size: 15px;
  margin-bottom: 13px;
}
.ps-consulting-service .tel {
  font-size: 20px;
  color: #e62929;
}
/* 相关推荐 */
.ps-recommend {
  margin-top: 24px;
  border-radius: 20px;
  border: 1px solid #f3f4f6;
  background: #f3f7fb;
  padding: 32px;
}
.ps-recommend .title {
  font-size: 24px;
  font-weight: 700;
  border-bottom: 1px solid #dee1e3;
  padding-bottom: 10px;
  margin-bottom: 15px;
}
.ps-recommend a {
  display: flex;
  gap: 10px;
  color: #111c26;
  border-bottom: 1px dashed #dee1e3;
  padding-bottom: 10px;
}
.ps-recommend a:hover {
  color: var(--primary-color);
}
.ps-recommend a + a {
  margin-top: 10px;
}
.ps-recommend p {
  display: flex;
  align-items: center;
}

/* ========== Scroll-triggered Animations ========== */
.anim-fade-up {
  opacity: 0;
  transform: translateY(60px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.anim-fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered delays */
.product-item.anim-fade-up:nth-child(1) { transition-delay: 0s; }
.product-item.anim-fade-up:nth-child(2) { transition-delay: 0.15s; }
.product-item.anim-fade-up:nth-child(3) { transition-delay: 0.3s; }