/* ========== Hero Slider ========== */
.home-hero {
  position: relative;
  width: 100%;
  /* 设计稿 1920×1075，随视口等比 */
  height: calc(1075 * var(--px));
  overflow: hidden;
  color: #fff;
}
.home-hero .slider-track {
  display: flex;
  height: 100%;
  transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}
.home-hero .slider-slide {
  min-width: 100%;
  height: 100%;
  position: relative;
  background: var(--primary-dark) center/cover no-repeat;
}
.home-hero .slider-slide::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(0, 20, 60, 0.72) 0%, rgba(0, 44, 135, 0.35) 55%, transparent 100%);
}
/* 设计稿：标题区 left 193 / top 409 */
.home-hero-content {
  position: absolute;
  left: calc(193 * var(--px));
  top: calc(409 * var(--px));
  z-index: 2;
  pointer-events: none;
}
.home-hero-content .container {
  pointer-events: auto;
  max-width: none;
  width: 100%;
  padding: 0;
  margin: 0;
}
.home-hero-title {
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(32px, calc(60 * var(--px)));
  font-weight: 500; /* HarmonyOS_Sans_SC_Medium */
  font-style: normal;
  text-transform: none;
  text-align: left;
  line-height: calc(72 * var(--px));
  color: #ffffff;
  max-width: 100%;
  margin-bottom: calc(41 * var(--px)); /* 英文上边距 */
  letter-spacing: 0;
}
.home-hero-sub {
  font-family: "Gotham Medium", "Gotham", "Barlow", "HarmonyOS Sans SC", sans-serif;
  font-size: max(14px, calc(24 * var(--px)));
  font-weight: 500; /* GothamMedium */
  font-style: normal;
  text-transform: none;
  text-align: left;
  letter-spacing: 0;
  color: #ffffff;
  margin-top: 0;
  margin-bottom: calc(54 * var(--px)); /* 英文下边距 → 按钮 */
  max-width: 100%;
  line-height: calc(32 * var(--px));
}
.home-hero-actions {
  display: flex;
  gap: calc(16 * var(--px));
  align-items: center;
}
.home-btn-primary {
  color: #1a1a1a;
  font-weight: 500;
}
.home-btn-primary:hover {
  background: #f5f7fa;
  color: #1a1a1a;
}
.home-hero-actions .btn {
  height: calc(44 * var(--px));
  min-height: calc(40 * var(--px));
  min-width: calc(140 * var(--px));
  padding: 0 calc(24 * var(--px));
  font-size: max(13px, calc(14 * var(--px)));
}
.home-hero-actions .btn svg {
  flex-shrink: 0;
}
.home-hero .slider-dots {
  position: absolute;
  left: 50%;
  bottom: calc(40 * var(--px));
  transform: translateX(-50%);
  display: flex;
  gap: calc(10 * var(--px));
  z-index: 3;
}
.slider-dot {
  width: calc(8 * var(--px));
  height: calc(8 * var(--px));
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  transition: all var(--transition);
  padding: 0;
}
.slider-dot.is-active {
  background: #fff;
  width: calc(24 * var(--px));
  border-radius: calc(4 * var(--px));
}

/* 首页各内容区块上下边距 100 */
.section {
  padding: calc(100 * var(--px)) 0;
}

/* ========== Products ========== */
.home-products {
  background: var(--bg-gray);
}
/* 区块标题 / 查看更多：过滤产品、解决方案、新闻、联系我们共用 */
.home-products .section-title,
.home-solutions .section-title,
.home-news .section-title,
.home-contact .section-title {
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(28px, calc(40 * var(--px)));
  font-weight: 500; /* HarmonyOS_Sans_SC_Medium */
  font-style: normal;
  text-transform: none;
  text-align: left;
  color: #111111;
  line-height: 1.3;
}
.home-products .section-more,
.home-solutions .section-more,
.home-news .section-more {
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(13px, calc(16 * var(--px)));
  font-weight: 400;
  font-style: normal;
  text-transform: none;
  text-align: left;
  color: #000f9e;
  line-height: calc(26 * var(--px));
}
.home-products .section-more svg,
.home-solutions .section-more svg,
.home-news .section-more svg {
  width: calc(14 * var(--px));
  height: calc(14 * var(--px));
  transform: rotate(-45deg); /* 箭头上翘 45° */
  transform-origin: center;
  flex-shrink: 0;
}
.home-product-grid,
.home-products-track {
  display: flex;
  gap: calc(30 * var(--px));
}
.home-product-grid {
  flex-wrap: wrap;
  justify-content: space-between;
}
.home-products-track {
  flex-wrap: nowrap;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  padding-bottom: calc(4 * var(--px));
}
.home-products-track::-webkit-scrollbar {
  display: none;
}
.home-product-card {
  width: calc(420 * var(--px));
  min-width: calc(420 * var(--px));
  height: calc(600 * var(--px));
  background: #ffffff;
  border-radius: calc(16 * var(--px));
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  box-shadow: 0 calc(4 * var(--px)) calc(20 * var(--px)) rgba(0, 44, 135, 0.04);
  box-sizing: border-box;
  flex: 0 0 calc(420 * var(--px));
  scroll-snap-align: start;
}
.home-product-card:hover {
  transform: translateY(calc(-6 * var(--px)));
  box-shadow: var(--shadow);
}
.home-product-card-img {
  height: calc(320 * var(--px));
  padding: calc(40 * var(--px)) calc(32 * var(--px)) calc(24 * var(--px));
  display: flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  flex-shrink: 0;
}
.home-product-card-img img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
}
.home-product-card-body {
  padding: 0 calc(32 * var(--px)) calc(32 * var(--px));
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.home-product-card-body h3 {
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(16px, calc(22 * var(--px)));
  font-weight: 500; /* HarmonyOS_Sans_SC_Medium */
  font-style: normal;
  text-transform: none;
  text-align: left;
  color: #111111;
  margin-bottom: calc(26 * var(--px));
  padding-bottom: calc(8 * var(--px));
  display: inline-block;
  align-self: flex-start;
  transition: color var(--transition);
}
.home-product-card-body p {
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(13px, calc(15 * var(--px)));
  font-weight: 300; /* HarmonyOS_Sans_SC_Light */
  font-style: normal;
  text-transform: none;
  text-align: left;
  color: #666666;
  line-height: calc(26 * var(--px));
  margin-bottom: calc(20 * var(--px));
  flex: 1;
}
.home-product-card .circle-btn {
  width: calc(52 * var(--px));
  height: calc(52 * var(--px));
  min-width: calc(40 * var(--px));
  min-height: calc(40 * var(--px));
  border: none;
  background: #f6f7f8; /* 默认 */
  color: #000f9e;
  border-radius: 50%;
  transition: background var(--transition), color var(--transition);
}
.home-product-card .circle-btn svg {
  width: calc(18 * var(--px));
  height: calc(18 * var(--px));
  transform: none;
}
/* 滑入：标题变蓝 + 圆圈变蓝（白箭头）一起触发 */
.home-product-card:hover .home-product-card-body h3 {
  color: #000f9e;
}
.home-product-card:hover .circle-btn {
  background: #000f9e;
  color: #ffffff;
}

/* ========== Solutions ========== */
.home-solutions-track {
  display: flex;
  gap: calc(30 * var(--px)); /* 6×270 + 5×30 = 1770 */
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  padding-bottom: calc(4 * var(--px));
}
.home-solutions-track::-webkit-scrollbar {
  display: none;
}
.home-solution-card {
  position: relative;
  width: calc(270 * var(--px));
  min-width: calc(270 * var(--px));
  flex: 0 0 calc(270 * var(--px));
  height: calc(480 * var(--px));
  border-radius: calc(16 * var(--px));
  overflow: hidden;
  scroll-snap-align: start;
  display: block;
  box-sizing: border-box;
}
.home-solution-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.home-solution-card:hover img {
  transform: scale(1.06);
}
.home-solution-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 20, 60, 0.85) 0%, transparent 55%);
}
.home-solution-card span {
  position: absolute;
  left: calc(24 * var(--px));
  bottom: calc(28 * var(--px));
  z-index: 1;
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(16px, calc(24 * var(--px)));
  font-weight: 500; /* HarmonyOS_Sans_SC_Medium */
  font-style: normal;
  text-transform: none;
  text-align: left;
  color: #ffffff;
  line-height: 1.3;
}
.home-products-nav,
.home-solutions-nav,
.home-news-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: calc(40 * var(--px));
  gap: calc(32 * var(--px));
}
.home-progress {
  position: relative;
  flex: 1;
  height: calc(2 * var(--px));
  background: #e8eaef;
  border-radius: calc(2 * var(--px));
  overflow: hidden;
}
.home-progress i {
  position: absolute;
  left: 0;
  top: 0;
  display: block;
  width: 28%;
  height: 100%;
  background: #000f9e;
  border-radius: calc(2 * var(--px));
  transition: left 0.35s ease;
}
.home-sol-arrows {
  display: flex;
  align-items: center;
  gap: calc(16 * var(--px));
  flex-shrink: 0;
}
.home-sol-arrow {
  width: calc(52 * var(--px));
  height: calc(52 * var(--px));
  min-width: calc(40 * var(--px));
  min-height: calc(40 * var(--px));
  border-radius: 50%;
  border: none;
  background: #f6f7f8;
  color: #000f9e;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), opacity var(--transition);
  padding: 0;
}
.home-sol-arrow svg {
  width: calc(18 * var(--px));
  height: calc(18 * var(--px));
}
.home-sol-arrow:hover:not(:disabled) {
  background: #000f9e;
  color: #ffffff;
}
.home-sol-arrow:disabled {
  background: #f6f7f8;
  color: #000f9e;
  opacity: 0.45;
  cursor: default;
  pointer-events: none;
}

/* ========== News ========== */
.home-news {
  background: var(--bg-gray);
}
.home-news .home-sol-arrow {
  background: #ffffff;
}
.home-news .home-sol-arrow:disabled {
  background: #ffffff;
}
.home-news .home-sol-arrow:hover:not(:disabled) {
  background: #000f9e;
  color: #ffffff;
}
.home-news-track {
  display: flex;
  gap: calc(30 * var(--px)); /* 4×420 + 3×30 = 1770，滚动时右侧露出下一张 */
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  padding-bottom: calc(4 * var(--px));
}
.home-news-track::-webkit-scrollbar {
  display: none;
}
.home-news-card {
  background: transparent;
  display: block;
  width: calc(420 * var(--px));
  min-width: calc(420 * var(--px));
  flex: 0 0 calc(420 * var(--px));
  scroll-snap-align: start;
  box-sizing: border-box;
  color: inherit;
}
.home-news-card-img {
  height: calc(300 * var(--px));
  border-radius: calc(16 * var(--px));
  overflow: hidden;
}
.home-news-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}
.home-news-card:hover .home-news-card-img img {
  transform: scale(1.05);
}
.home-news-card-body {
  padding: 0;
}
.home-news-tag {
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(12px, calc(14 * var(--px)));
  font-weight: 400;
  font-style: normal;
  text-transform: none;
  text-align: left;
  color: #000f9e;
  line-height: calc(26 * var(--px));
  margin-top: calc(25 * var(--px));
  margin-bottom: calc(32 * var(--px));
}
.home-news-card h3 {
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(16px, calc(20 * var(--px)));
  font-weight: 500; /* HarmonyOS_Sans_SC_Medium */
  font-style: normal;
  text-transform: none;
  text-align: left;
  color: #000000;
  line-height: calc(28 * var(--px));
  margin: 0 0 calc(12 * var(--px));
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.home-news-card p {
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(13px, calc(15 * var(--px)));
  font-weight: 300; /* HarmonyOS_Sans_SC_Light */
  font-style: normal;
  text-transform: none;
  text-align: left;
  color: #666666;
  line-height: calc(26 * var(--px));
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
/* ========== Contact strip ========== */
.home-contact {
  background: #ffffff;
}
.home-contact-grid {
  display: flex;
  justify-content: space-between;
  gap: calc(30 * var(--px)); /* 3×570 + 2×30 = 1770 */
}
.home-contact-item {
  width: calc(570 * var(--px));
  height: calc(220 * var(--px));
  background: #fafafc;
  border-radius: calc(16 * var(--px));
  padding: 0 calc(24 * var(--px));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  box-sizing: border-box;
  flex-shrink: 0;
}
.home-contact-icon {
  width: calc(40 * var(--px));
  height: calc(40 * var(--px));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: calc(16 * var(--px));
}
.home-contact-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}
.home-contact-item h4 {
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(16px, calc(20 * var(--px)));
  font-weight: 700; /* HarmonyOS_Sans_SC_Bold */
  font-style: normal;
  text-transform: none;
  text-align: center;
  color: #333333;
  line-height: calc(32 * var(--px));
  margin: 0;
}
.home-contact-item p {
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(14px, calc(16 * var(--px)));
  font-weight: 400; /* HarmonyOS_Sans_SC */
  font-style: normal;
  text-transform: none;
  text-align: center;
  color: #333333;
  line-height: calc(32 * var(--px));
  margin: 0;
}
/* 联系客服：默认文字，悬停/聚焦弹出二维码 */
.home-contact-wechat {
  position: relative;
  cursor: pointer;
  outline: none;
}
.home-contact-qr-pop {
  position: absolute;
  right: calc(60% + 14 * var(--px));
  left: auto;
  top: 50%;
  bottom: auto;
  transform: translateY(-50%) translateX(10px);
  width: calc(148 * var(--px));
  padding: calc(14 * var(--px));
  background: #ffffff;
  border-radius: calc(12 * var(--px));
  box-shadow: 0 calc(12 * var(--px)) calc(32 * var(--px)) rgba(17, 17, 17, 0.14);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  z-index: 6;
  box-sizing: border-box;
}
.home-contact-qr-pop::after {
  content: "";
  position: absolute;
  left: 100%;
  top: 50%;
  transform: translateY(-50%);
  border: 8px solid transparent;
  border-left-color: #ffffff;
}
.home-contact-qr-pop img {
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  object-fit: contain;
  display: block;
  border-radius: calc(8 * var(--px));
}
.home-contact-wechat:hover .home-contact-qr-pop,
.home-contact-wechat:focus .home-contact-qr-pop,
.home-contact-wechat:focus-within .home-contact-qr-pop {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(-50%) translateX(0);
}

@media (max-width: 1400px) {
  .home-solution-card {
    width: calc(270 * var(--px));
    min-width: calc(220 * var(--px));
    flex-basis: calc(220 * var(--px));
    height: calc(400 * var(--px));
  }
  .home-news-card {
    width: calc(420 * var(--px));
    min-width: calc(320 * var(--px));
    flex-basis: calc(320 * var(--px));
  }
  .home-news-card-img {
    height: calc(240 * var(--px));
  }
}
@media (max-width: 1200px) {
  /* ≤1200 时 --px=1px，560/700 会过高；纯 1920/1075 又过矮、文案顶到导航
     取中间高度，文案从导航下方起排 */
  .home-hero {
    height: min(460px, 58vh);
    min-height: 360px;
    aspect-ratio: auto;
  }
  .home-hero .slider-track {
    position: absolute;
    inset: 0;
    display: flex;
    height: 100%;
    width: 100%;
  }
  .home-hero .slider-slide {
    position: relative;
    flex: 0 0 100%;
    width: 100%;
    min-width: 100%;
    height: 100%;
  }
  .home-hero-content {
    left: calc(24 * var(--px));
    top: calc(var(--header-h, 100px) + 20px);
    bottom: 48px;
    transform: none;
    width: auto;
    right: calc(24 * var(--px));
    max-width: calc(560 * var(--px));
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  .home-product-grid {
    justify-content: center;
  }
  .home-products-track .home-product-card {
    width: calc(320 * var(--px));
    min-width: calc(320 * var(--px));
    flex: 0 0 calc(320 * var(--px));
    height: auto;
    min-height: calc(480 * var(--px));
  }
  .home-product-grid .home-product-card {
    width: min(calc(420 * var(--px)), calc(50% - 12 * var(--px)));
    height: auto;
    min-height: calc(480 * var(--px));
  }
  .home-hero-title {
    font-size: 28px;
    line-height: 1.35;
    margin-bottom: 16px;
  }
  .home-hero-sub {
    font-size: 14px;
    line-height: 1.45;
    margin-bottom: 20px;
  }
  .home-hero-actions .btn {
    height: 40px;
    min-height: 40px;
  }
  .home-hero .slider-dots {
    bottom: 16px;
  }
  .home-solution-card {
    width: calc(200 * var(--px));
    min-width: calc(200 * var(--px));
    flex-basis: calc(200 * var(--px));
    height: calc(360 * var(--px));
  }
}
@media (max-width: 768px) {
  .home-hero {
    height: min(400px, 52vh);
    min-height: 320px;
    aspect-ratio: auto;
  }
  .home-hero-content {
    top: calc(var(--header-h, 64px) + 12px);
    bottom: 36px;
    transform: none;
    left: 16px;
    right: 16px;
    max-width: none;
  }
  .home-hero-title {
    font-size: 22px;
    line-height: 1.3;
    margin-bottom: 10px;
  }
  .home-hero-sub {
    font-size: 12px;
    line-height: 1.4;
    margin-bottom: 14px;
  }
  .home-hero-actions {
    flex-wrap: wrap;
    gap: 10px;
  }
  .home-hero-actions .btn {
    height: 36px;
    min-height: 36px;
    min-width: 0;
    padding: 0 14px;
    font-size: 13px;
  }
  .home-hero .slider-dots {
    bottom: 10px;
    gap: 8px;
  }
  .home-products .section-title,
  .home-solutions .section-title,
  .home-news .section-title,
  .home-contact .section-title {
    font-size: 24px;
  }
  .home-products .section-more,
  .home-solutions .section-more,
  .home-news .section-more {
    white-space: nowrap;
  }
  .home-product-grid {
    grid-template-columns: 1fr;
  }
  .home-contact-grid {
    flex-direction: column;
    align-items: stretch;
  }
  .home-contact-item {
    width: 100%;
    height: auto;
    min-height: calc(180 * var(--px));
    padding: calc(32 * var(--px)) calc(24 * var(--px));
  }
  /* 窄屏卡片纵向排列时，二维码改到卡片下方，避免左侧被裁切 */
  .home-contact-qr-pop {
    right: auto;
    left: 50%;
    top: calc(100% + 10 * var(--px));
    transform: translateX(-50%) translateY(8px);
  }
  .home-contact-qr-pop::after {
    left: 50%;
    top: auto;
    bottom: 100%;
    transform: translateX(-50%);
    border-left-color: transparent;
    border-bottom-color: #ffffff;
  }
  .home-contact-wechat:hover .home-contact-qr-pop,
  .home-contact-wechat:focus .home-contact-qr-pop,
  .home-contact-wechat:focus-within .home-contact-qr-pop {
    transform: translateX(-50%) translateY(0);
  }
  .home-products-track .home-product-card {
    width: 80%;
    min-width: 80%;
    flex: 0 0 80%;
    height: auto;
    min-height: 0;
  }
  .home-product-grid .home-product-card {
    width: 100%;
    height: auto;
    min-height: 0;
  }
  .home-solution-card,
  .home-news-card {
    min-width: 80%;
    flex-basis: 80%;
    height: calc(220 * var(--px));
  }
  .home-solution-card {
    width: 80%;
    height: calc(360 * var(--px));
  }
  .home-news-card {
    height: auto;
  }
}