/* ============================================================
   页面顶部 Banner（产品与服务）
   全宽图片 + 深色渐变遮罩 + 网格纹理 + 标题叠加
   下方紧跟面包屑条带
   ============================================================ */

.pbanner {
  position: relative;
  display: flex;
  align-items: center;
  min-height: clamp(260px, 30vw, 400px);
  overflow: hidden;
  background: #0b1730;
}

.pbanner-media {
  position: absolute;
  inset: 0;
}

.pbanner-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transform: scale(1.02);
}

/* 左强右弱的渐变遮罩，保证左侧文字对比度达 WCAG AA */
.pbanner-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(6, 17, 40, .88) 0%, rgba(6, 17, 40, .66) 42%, rgba(6, 17, 40, .22) 78%, rgba(6, 17, 40, .10) 100%),
    linear-gradient(180deg, rgba(6, 17, 40, .30) 0%, transparent 34%, rgba(6, 17, 40, .38) 100%);
}

/* 右上角科技网格纹理 */
.pbanner::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .07) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: radial-gradient(680px 380px at 88% 6%, #000, transparent 72%);
  mask-image: radial-gradient(680px 380px at 88% 6%, #000, transparent 72%);
  pointer-events: none;
  z-index: 1;
}

/* 底部一条主色渐变线，与站内蓝主色呼应 */
.pbanner::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary, #2b6cff), #35c6f4 46%, rgba(53, 198, 244, 0));
  z-index: 2;
}

.pbanner-inner {
  position: relative;
  z-index: 3;
  width: 100%;
  max-width: var(--container, 1200px);
  margin: 0 auto;
  padding: clamp(34px, 4.4vw, 62px) 24px clamp(30px, 3.6vw, 48px);
}

.pbanner-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: #8fc2ff;
  margin-bottom: 14px;
}

.pbanner-eyebrow i {
  display: block;
  width: 26px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary, #2b6cff), #35c6f4);
  border-radius: 2px;
}

.pbanner h1,
.pbanner .pbanner-title {
  margin: 0;
  color: #fff;
  font-size: clamp(28px, 3.4vw, 46px);
  line-height: 1.18;
  letter-spacing: -.5px;
  text-shadow: 0 2px 24px rgba(4, 12, 30, .45);
}

.pbanner .pbanner-sub {
  margin: 14px 0 0;
  max-width: 640px;
  color: rgba(255, 255, 255, .84);
  font-size: clamp(14.5px, 1.1vw, 17px);
  line-height: 1.72;
}

/* 标签行 */
.pbanner-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.pbanner-tags span {
  padding: 7px 15px;
  border: 1px solid rgba(255, 255, 255, .28);
  border-radius: 999px;
  background: rgba(255, 255, 255, .10);
  backdrop-filter: blur(6px);
  color: #fff;
  font-size: 13px;
  line-height: 1;
}

/* ---------- 面包屑条带 ---------- */
.crumb-band {
  border-bottom: 1px solid var(--line, #e6ebf3);
  background: #fff;
}

.crumb-band .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}

.crumb-band .breadcrumb {
  padding: 15px 0;
}

.crumb-band .crumb-note {
  padding: 15px 0;
  font-size: 13px;
  color: var(--muted, #6b7a91);
}

@media (max-width: 860px) {
  .pbanner {
    min-height: 220px;
    align-items: center;
  }
  .pbanner-media::after {
    background: linear-gradient(180deg, rgba(6, 17, 40, .72), rgba(6, 17, 40, .86));
  }
  .pbanner::before {
    -webkit-mask-image: none;
    mask-image: none;
    opacity: .5;
  }
  .pbanner-inner {
    padding: 30px 20px;
  }
  .pbanner .pbanner-sub {
    font-size: 14.5px;
  }
  .crumb-band .crumb-note {
    display: none;
  }
}