:root {
  --product-blue: #152ad3;
  --product-text: #1d1d1d;
  --product-muted: #6a7282;
  --product-bg: #f8f8f9;
  --product-width: 1400px;
}

.srs-product-page {
  overflow: hidden;
}

.srs-product-container {
  width: var(--product-width);
  max-width: calc(100% - 64px);
  margin: 0 auto;
}

.srs-product-heading {
  text-align: center;
}

.srs-product-heading h2 {
  margin: 0;
  color: #000;
  font-size: 45px;
  font-weight: 600;
  line-height: 1.35;
}

.srs-product-heading p {
  margin: 20px auto 0;
  color: var(--product-muted);
  font-size: 21px;
  line-height: 1.75;
}

.srs-product-reveal {
  transition: opacity .72s ease, transform .72s cubic-bezier(.22, .61, .36, 1);
}

.js .srs-product-reveal:not(.is-visible) {
  opacity: .01;
  transform: translateY(32px);
}

/* 3.1 Product Hero */
.srs-product-hero {
  position: relative;
  height: 800px;
  background: #02050c url("../img/product/product-hero.png") center/cover no-repeat;
  color: #fff;
}

.srs-product-hero.has-bg {
  background-image: var(--srs-product-hero-bg, url("../img/product/product-hero.png"));
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
}

.srs-product-hero__copy {
  position: absolute;
  inset: 0;
  z-index: 2;
  padding-top: 120px;
  text-align: center;
}

.srs-product-hero__copy .srs-product-hero__desc {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 120px;
  width: min(1000px, calc(100% - 48px));
  margin: 0 auto;
  font-size: 20px;
  line-height: 1.75;
  color: rgba(255, 255, 255, .85);
}

.srs-product-hero__copy p {
  margin: 0;
  font-size: 24px;
  line-height: 29px;
}

.srs-product-hero__copy h1 {
  margin: 12px 0 11px;
  font-size: 64px;
  font-weight: 500;
  line-height: 80px;
}

.srs-product-hero__copy span {
  font-size: 24px;
  line-height: 29px;
}

/* 数据展示卡片 */
.srs-product-hero__cards {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 80px;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 64px;
}

.srs-product-hero__card {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 120px;
  text-align: center;
}

.srs-product-hero__cards .srs-product-hero__card-title {
  font-size: 32px;
  font-weight: 500;
  line-height: 1.2;
  color: #fff;
}

.srs-product-hero__cards .srs-product-hero__card-desc {
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.4;
  color: rgba(255, 255, 255, .65);
}


.srs-product-hero__robots {
  position: absolute;
  z-index: 2;
  top: 320px;
  left: 50%;
  width: 1305px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  transform: translateX(-50%);
}

.srs-product-hero__robots figure {
  width: 174px;
  margin: 0;
  text-align: center;
}

.srs-product-hero__robots img {
  width: 100%;
  height: 357px;
  object-fit: contain;
  object-position: center bottom;
  filter: drop-shadow(0 18px 24px rgba(0, 0, 0, .28));
  transition: transform .4s ease;
}

.srs-product-hero__robots figure:hover img {
  transform: translateY(-10px);
}

.srs-product-hero__robots figcaption {
  margin-top: 20px;
  color: rgba(255, 255, 255, .8);
  font-size: 24px;
}

/* 3.2 Product highlights */
.srs-product-highlights {
  padding-top: 80px;
  padding-bottom: 120px;
  background: #fff;
}

.srs-product-highlights .srs-product-heading h2 {
  font-size: 32px;
  line-height: 42px;
}

.srs-product-highlights .srs-product-heading h3 {
  margin-top: 10px;
  font-weight: 400;
  margin-bottom: 40px;
}

.srs-product-highlights__types {
  width: 600px;
  margin: 30px auto 60px;
  display: flex;
  justify-content: space-between;
}

.srs-product-highlights__types span {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
  color: #000;
  font-size: 21px;
}

.srs-product-highlights__types img {
  width: 64px;
  height: 64px;
  object-fit: contain;
}

.srs-product-highlights__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 27px;
}

.srs-product-highlights__grid figure {
  height: 620px;
  margin: 0;
  overflow: hidden;
  border-radius: 20px;
  background: #d9d9d9;
  position: relative;
  z-index: 1;
}

.srs-product-highlights__grid figure .in_con {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, .5);

}

.srs-product-highlights__grid figure .in_con span {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  position: absolute;
  color: #fff;
  font-weight: 700;
}

.srs-product-highlights__grid figure .in_con img {
  filter: invert(1);
  height: 80px;
  width: 80px;
  margin: 0 auto;
  margin-bottom: 20px;
}

.srs-product-highlights__grid img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .65s ease;
}

.srs-product-highlights__grid figure:hover img {
  transform: scale(1.025);
}


/* 3.2.1 Arclys performance data */
.srs-product-performance {
  height: 250px;
  background: #fff;
}

.srs-product-performance__inner {
  width: 1240px;
  max-width: calc(100% - 64px);
  height: 100%;
  margin: 0 auto;
  padding-top: 72px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.srs-product-performance__item {
  position: relative;
  margin: 0;
  text-align: center;
}

.srs-product-performance__item:not(:first-child)::before {
  content: "";
  position: absolute;
  top: 16px;
  left: 0;
  width: 1px;
  height: 65px;
  background: #a7a7a7;
}

.srs-product-performance__item strong,
.srs-product-performance__item span {
  display: block;
}

.srs-product-performance__item strong {
  margin: 0;
  color: #000;
  font-size: 38px;
  font-weight: 600;
  line-height: 50px;
  letter-spacing: -.5px;
}

.srs-product-performance__item span {
  margin-top: 11px;
  color: #737d91;
  font-size: 26px;
  font-weight: 400;
  line-height: 36px;
}

.srs-product-performance__icon {
  display: block;
  height: 40px;
  width: auto;
  margin: 0 auto 14px;
}


/* 3.3–3.5 Capability rows */
.srs-product-capability {
  height: 640px;
  display: flex;
  align-items: center;
}

.srs-product-capability--light {
  background: var(--product-bg);
}

.srs-product-capability--dark {
  height: 640px;
  background: #fff;
}

.srs-product-capability__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  justify-content: space-between;
}

.srs-product-capability--reverse .srs-product-capability__layout {
  grid-template-columns: 1fr 1fr;
}

.srs-product-capability__copy>span {
  display: block;
  margin-bottom: 8px;
  color: var(--product-text);
  font-size: 21px;
}

.srs-product-capability__copy h2 {
  margin: 0 0 21px;
  font-size: 32px;
  font-weight: 600;
  line-height: 45px;
}

.srs-product-capability__copy>p {
  margin: 0;
  color: var(--product-muted);
  font-size: 18px;
  line-height: 1.7;
  max-width: 90%;
}

.srs-product-capability__copy>p strong {
  display: block;
  color: var(--product-muted);
  font-weight: 500;
}

.srs-product-capability__media {
  width: 760px;
  height: 450px;
  margin: 0;
  overflow: hidden;
}

.srs-product-capability__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .7s ease;
}

.srs-product-capability__media:hover img {
  transform: scale(1.02);
}

.srs-product-metrics {
  margin-top: 30px;
  margin-bottom: 30px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 65px;
}

.srs-product-metrics div {
  min-width: 100px;
}

.srs-product-metrics img {
  width: 30px;
  height: 30px;
  object-fit: contain;
  margin-bottom: 8px;
}

.srs-product-metrics b,
.srs-product-metrics small {
  display: block;
  white-space: nowrap;
}

.srs-product-metrics b {
  color: #000;
  font-size: 26px;
  font-weight: 500;
}

.srs-product-metrics span {
  font-size: 16px;
}

.srs-product-metrics small {
  white-space: normal;
  margin-top: 3px;
  color: var(--product-muted);
  font-size: 16px;
}

.srs-product-capability__note {
  margin-top: 40px !important;
  color: var(--product-text) !important;
  font-size: 15px !important;
  line-height: 32px !important;
}

.srs-product-capability__note strong {
  color: var(--product-text) !important;
  font-size: 18px;
}

/* Shared infinite carousels */
.srs-loop,
.srs-product-more__viewport {
  overflow: hidden;
  touch-action: pan-y pinch-zoom;
  overscroll-behavior-x: contain;
  cursor: grab;
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.srs-loop.is-dragging,
.srs-product-more__viewport.is-dragging {
  cursor: grabbing;
}

/*
 * 「更多产品推荐」在有鼠标的设备上不再响应拖拽（见 products.page.js 的
 * pointerdown：pointerType === 'mouse' 直接返回），所以抓手光标要撤掉 ——
 * 留着会暗示一个已经不存在的交互，且与卡片整块可点的手型冲突。
 * 触摸设备命中不了 hover:hover，滑动手势与光标样式都不受影响。
 */
@media (hover: hover) and (pointer: fine) {
  .srs-product-more__viewport {
    cursor: default;
  }
}

.srs-loop__track {
  display: flex;
  width: max-content;
  will-change: transform;
  backface-visibility: hidden;
  transform: translate3d(0, 0, 0);
  transition: transform .68s cubic-bezier(.22, .72, .22, 1);
}

.srs-loop__track img,
.srs-product-more__track img {
  pointer-events: none;
  -webkit-user-drag: none;
}

.srs-product-carousel-controls {
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 34px;
}

.srs-product-carousel-controls>button,
.srs-product-more__controls button {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid #acacac;
  border-radius: 50%;
  background: transparent;
  color: #16191f;
  font-size: 23px;
  cursor: pointer;
  transition: color .25s, background .25s, border-color .25s;
}

.srs-product-carousel-controls>button:hover,
.srs-product-more__controls button:hover {
  border-color: var(--product-blue);
  background: var(--product-blue);
  color: #fff;
}

.srs-product-more__controls button:hover img,
.srs-product-carousel-controls button:hover img {
  filter: invert(100%);
}

.srs-product-carousel-dots {
  display: flex;
  align-items: center;
  gap: 12px;
}

.srs-product-carousel-dots button {
  width: 8px;
  height: 8px;
  padding: 0;
  border: 0;
  border-radius: 8px;
  background: #969ba6;
  cursor: pointer;
  transition: width .3s, background .3s;
}

.srs-product-carousel-dots button.is-active {
  width: 30px;
  background: var(--product-blue);
}

/* 3.6 Main features */
.srs-product-features {
  height: 1029px;
  padding-top: 132px;
  background: #fff;
}

.srs-product-features .srs-product-heading h2 {
  font-size: 45px;
}

.srs-product-features .srs-product-heading p {
  /* 用 min() 而非裸 540px：窄视口下裸值会把段落撑出屏幕，
     进而拉宽 Chrome 的布局视口（fixed 定位的头部随之被撑到 540px）。 */
  width: min(540px, 100%);
  margin-top: 20px;
  color: #697386;
  font-size: 20px;
  line-height: 28px;
}

.srs-product-features__viewport {
  margin-top: 76px;
}

.srs-product-features__track {
  gap: 20px;
}

.srs-product-feature-card {
  position: relative;
  width: 800px;
  height: 480px;
  flex: 0 0 800px;
  overflow: hidden;
  margin: 0;
  border-radius: 6px;
  background: #151a24;
  color: #fff;
}

.srs-product-feature-card>img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.srs-product-feature-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 46%, rgba(1, 5, 13, .88));
}

.srs-product-feature-card.is-active::before {
  content: "→";
  position: absolute;
  z-index: 3;
  right: 28px;
  bottom: 67px;
  color: #fff;
  font-size: 27px;
  font-weight: 300;
}

.srs-product-feature-card>div {
  position: absolute;
  z-index: 2;
  left: 44px;
  right: 58px;
  bottom: 39px;
}

.srs-product-feature-card h3 {
  margin: 0;
  font-size: 30px;
  font-weight: 500;
  line-height: 42px;
}

.srs-product-feature-card p {
  max-width: 500px;
  margin: 5px 0 0;
  color: rgba(255, 255, 255, .82);
  font-size: 16px;
  line-height: 22px;
}

.srs-product-features .srs-product-carousel-controls {
  margin-top: 60px;
}


/* 3.6.1 Why choose Arclys */
.srs-product-why-arclys {
  padding: 100px 32px 40px;
  background: #fff;
}

.srs-product-why-arclys__inner {
  width: 1400px;
  max-width: 100%;
  margin: 0 auto;
}

.srs-product-why-arclys .srs-product-heading h2 {
  font-size: 45px;
  font-weight: 600;
  line-height: 61px;
}

.srs-product-why-arclys .srs-product-heading p {
  margin-top: 20px;
  color: #9299a8;
  font-size: 25px;
  font-weight: 400;
  line-height: 35px;
}

.srs-product-why-arclys__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 40px 80px;
  margin-top: 80px;
}

.srs-product-why-arclys__card {
  height: 460px;
  display: flex;
  flex-direction: column;
  margin: 0;
  padding: 50px 40px 40px;
  border: 1px solid #dedede;
  background: #fff;
}

.srs-product-why-arclys__card h3 {
  margin: 0;
  color: #080808;
  font-size: 28px;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: -.5px;
}

.srs-product-why-arclys__card h3 span {
  margin-left: 8px;
  color: var(--product-blue);
  font-size: 36px;
  font-weight: 500;
  line-height: 45px;
  vertical-align: -2px;
}

.srs-product-why-arclys__card p {
  width: 100%;
  margin: 20px 0 0;
  color: #9299a8;
  font-size: 21px;
  font-weight: 400;
  line-height: 34px;
}

.srs-product-why-arclys__card figure {
  width: 100%;
  height: 240px;
  margin: auto 0 0;
  overflow: hidden;
  background: #e9ebef;
}

.srs-product-why-arclys__card img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .65s ease;
}

.srs-product-why-arclys__card:hover img {
  transform: scale(1.025);
}


/* 3.7 Specifications */
.srs-product-specs {
  padding-top: 80px;
  padding-bottom: 80px;
  background: #fff;
}

.srs-product-specs__scroll {
  margin-top: 40px;
  overflow-x: auto;
}

.srs-product-specs table {
  width: 1310px;
  margin: 0 auto;
  border-collapse: collapse;
  color: #2b2f38;
  table-layout: fixed;
}

.srs-product-specs th,
.srs-product-specs td {
  padding: 20px 24px;
  border-bottom: 1px solid #e2e5eb;
  text-align: left;
  font-size: 16px;
  line-height: 28px;
  font-family: "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}

.srs-product-specs thead th {
  height: 216px;
  border: 0;
  vertical-align: bottom;
}

.srs-product-specs thead th:first-child,
.srs-product-specs tbody th {
  width: 250px;
  text-align: left;
}

.srs-product-specs thead img {
  height: 150px;
  margin: 0 auto 12px;
  object-fit: contain;
}



.srs-product-specs thead b {
  display: block;
  font-size: 18px;
  font-weight: 500;
}

.srs-product-specs tbody tr:nth-child(odd) {
  background: #f5f6f8;
}

.srs-product-specs tbody th {
  font-weight: 500;
}

.srs-product-specs__detail td {
  height: 200px;
  line-height: 30px;
  font-family: "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}

.srs-product-specs__detail small {
  color: var(--product-muted);
  font-size: 13px;
}

.srs-product-specs__more {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 70px auto 0;
  padding: 0;
  border: 0;
  background: none;
  color: #222;
  font-size: 18px;
  cursor: pointer;
}

.srs-product-specs__more span {
  font-size: 25px;
  transition: transform .3s;
}

.srs-product-specs.is-expanded .srs-product-specs__more span {
  transform: rotate(45deg);
}

/* 3.8 Application scenes */
.srs-product-scenes {
  height: 1031px;
  padding-top: 75px;
  background: #fff;
  border-bottom: 1px solid #e5e7eb;
}

.srs-product-scenes .srs-product-heading p {
  width: 540px;
  margin-top: 20px;
  color: #697386;
  font-size: 20px;
  line-height: 28px;
}

.srs-product-scenes__viewport {
  margin-top: 69px;
}

.srs-product-scenes__track {
  gap: 30px;
}

.srs-product-scenes__track article {
  position: relative;
  width: 540px;
  height: 500px;
  flex: 0 0 540px;
  overflow: hidden;
  margin: 0;
  border-radius: 14px;
  background: linear-gradient(180deg, #E4EBF1 0%, #F6F6F6 100%), #F5F5;
  color: #fff;
}

.srs-product-scenes__track article::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 56%, rgba(13, 58, 141, 1));
}

.srs-product-scenes__track img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .65s;
}

.srs-product-scenes__track article:hover img {
  transform: scale(1.025);
}

.srs-product-scenes__track h3 {
  position: absolute;
  z-index: 2;
  left: 60px;
  bottom: 34px;
  margin: 0;
  font-size: 28px;
  font-weight: 300;
}

.srs-product-scenes .srs-product-carousel-controls {
  gap: 28px;
  margin-top: 74px;
}

.srs-product-scenes .srs-product-carousel-dots {
  display: none;
}

/* 3.9 Cases */
.srs-product-cases {
  height: 759px;
  padding-top: 105px;
  background: #fff;
}

.srs-product-cases__grid {
  margin-top: 30px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 50px;
}

.srs-product-cases__grid a {
  height: 420px;
  padding: 25px;
  background: #f7f8fc;
  transition: transform .3s, box-shadow .3s;
}

.srs-product-cases__grid a:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 44px rgba(22, 29, 51, .1);
}

.srs-product-cases__grid img {
  width: 100%;
  height: 210px;
  object-fit: cover;
}

.srs-product-cases__grid strong {
  display: block;
  margin-top: 24px;
  color: #252932;
  font-size: 18px;
  font-weight: 400;
  font-weight: normal;
}

.srs-product-cases__grid p {
  font-size: 15px;
  color: #888e9b;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  font-weight: 300;
  overflow: hidden;
}

.srs-product-cases__more {
  width: max-content;
  margin: 68px auto 0;
  display: flex;
  align-items: center;
  gap: 15px;
  font-size: 18px;
}

/* 3.10 More products */
.srs-product-more {
  height: 1067px;
  padding-top: 104px;
  background: var(--product-bg);
}


.srs-product-more__inner {
  --more-gutter: max(32px, calc((100% - 1400px)/2));
  width: calc(100% - var(--more-gutter));
  max-width: none;
  margin-left: var(--more-gutter);
  margin-right: 0;
}

.srs-product-more__inner>.srs-product-heading {
  /* 标题不跟着右偏，用负 margin 拉回并补足被 inner 让出的那段宽度。 */
  width: calc(100% + var(--more-gutter));
  margin-left: calc(var(--more-gutter) * -1);
}

.srs-product-more__viewport {
  margin-top: 60px;
  overflow: hidden;
}

.srs-product-more__track {
  display: flex;
  width: max-content;
  gap: 20px;
  will-change: transform;
  backface-visibility: hidden;
  transform: translate3d(0, 0, 0);
  transition: transform .65s cubic-bezier(.22, .72, .22, 1);
}

.srs-product-more__track article {
  width: 560px;
  height: 571px;
  flex: 0 0 560px;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 63px 38px 30px;
  background: #fff;
  text-align: center;
}

.srs-product-more__track h3 {
  margin: 0 auto 30px;
  color: var(--product-text);
  font-size: 28px;
  font-weight: 500;
  max-width: 84%;
  margin-bottom: 30px;
}

/* 整张卡片可点。::after 铺满 article，卡内其他元素无需各自加链接。 */
.srs-product-more__track article {
  position: relative;
}

.srs-product-more__link {
  color: inherit;
  text-decoration: none;
}

.srs-product-more__link::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
}

/* 焦点环画在卡片外沿而不是标题文字上，键盘用户才看得出选中的是整张卡。 */
.srs-product-more__link:focus-visible {
  outline: none;
}

.srs-product-more__link:focus-visible::after {
  outline: 2px solid var(--product-blue);
  outline-offset: -3px;
}

.srs-product-more__track p {
  margin: 14px 0 0;
  color: #888e9b;
  font-size: 16px;
}

.srs-product-more__track img {
  width: 100%;
  height: 220px;
  margin-top: 96px;
  object-fit: contain;
}

.srs-product-more__controls {
  /* 同样避开 100vw：它含滚动条宽度，会把这行控件顶出可视区。 */
  width: min(1400px, calc(100% - 64px));
  max-width: none;
  height: 56px;
  margin-top: 60px;
  display: grid;
  grid-template-columns: 105px 1fr 136px;
  align-items: center;
  gap: 35px;
}

.srs-product-more__controls>div:first-child {
  display: flex;
  gap: 10px;
}

.srs-product-more__controls button {
  width: 43px;
  height: 43px;
  font-size: 18px;
}

.srs-product-more__controls button img {
  width: 10px;
}

.srs-product-more__progress {
  position: relative;
  height: 3px;
  background: #d5d8df;
}

.srs-product-more__progress i {
  position: absolute;
  inset: 0 auto 0 0;
  width: 21.4%;
  background: var(--product-blue);
  transition: width .55s cubic-bezier(.22, .72, .22, 1);
}

.srs-product-more__controls>a {
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 24px;
  background: var(--product-blue);
  color: #fff;
  font-size: 16px;
}

@media (max-width: 1480px) {
  .srs-product-capability {
    height: 580px;
    padding: 0px 60px;
  }

  .srs-product-capability__copy>p {
    font-size: 16px;
  }

  .srs-product-features {
    height: auto;
    padding-top: 80px;
    padding-bottom: 80px;
  }

  .srs-product-scenes__track h3 {
    font-size: 24px;
  }
}

@media (max-width: 1280px) {
  .srs-product-hero__robots {
    width: 88vw;
  }

  .srs-product-hero__robots figure {
    width: 14vw;
  }

  .srs-product-highlights {
    height: auto;
    padding-bottom: 100px;
  }

  .srs-product-highlights__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .srs-product-highlights__grid figure {
    height: 48vw;
  }

  .srs-product-capability,
  .srs-product-capability--dark {
    height: auto;
    padding: 90px 0;
  }

  .srs-product-capability__layout,
  .srs-product-capability--reverse .srs-product-capability__layout {
    grid-template-columns: 42% 54%;
    gap: 4%;
  }

  .srs-product-capability__media {
    width: 100%;
    height: auto;
    aspect-ratio: 760/450;
  }

  .srs-product-metrics {
    gap: 24px;
  }

  .srs-product-more__inner {
    --more-gutter: 40px;
  }
}

@media (max-width: 900px) {
  .srs-product-heading h2 {
    font-size: 36px;
  }

  .srs-product-hero {
    height: 820px;
  }

  .srs-product-hero__copy {
    padding-top: 150px;
  }

  .srs-product-hero__copy h1 {
    font-size: 48px;
    line-height: 1.3;
  }

  .srs-product-hero__robots {
    top: 390px;
  }

  .srs-product-hero__robots img {
    height: 280px;
  }

  .srs-product-highlights__types {
    max-width: 100%;
    margin-bottom: 70px;
  }

  .srs-product-highlights__grid {
    grid-template-columns: 1fr;
  }

  .srs-product-highlights__grid figure {
    height: auto;
    aspect-ratio: 450/620;
  }

  .srs-product-capability__layout,
  .srs-product-capability--reverse .srs-product-capability__layout {
    grid-template-columns: 1fr;
    gap: 55px;
  }

  .srs-product-capability--reverse .srs-product-capability__media {
    order: 2;
  }

  .srs-product-metrics {
    margin-top: 48px;
  }

  .srs-product-features,
  .srs-product-scenes {
    height: 860px;
  }

  .srs-product-feature-card {
    width: 72vw;
    flex-basis: 72vw;
    height: 420px;
  }

  .srs-product-specs {
    min-height: 1150px;
    padding-bottom: 80px;
  }

  .srs-product-cases {
    height: auto;
    padding: 80px 0;
  }

  .srs-product-cases__grid {
    grid-template-columns: 1fr;
  }

  .srs-product-more {
    height: 950px;
  }
}

@media (max-width: 640px) {
  .srs-product-container {
    max-width: calc(100% - 40px);
  }

  .srs-product-heading h2 {
    font-size: 28px;
  }

  .srs-product-heading p {
    font-size: 15px;
  }

  .srs-product-hero {
    height: 720px;
  }

  /* 三级回落：手机端专用图 → 桌面端配置图 → 内置图。 */
  .srs-product-hero.has-bg {
    background-image:
      var(--srs-product-hero-bg-m,
        var(--srs-product-hero-bg, url("../img/product/product-hero.png")));
  }

  .srs-product-hero__copy {
    padding: 125px 20px 0;
  }

  /* 功能描述：手机端压紧，给上方标题文字留更多空间。 */
  .srs-product-hero__copy .srs-product-hero__desc {
    /* 宽度交给父级的 20px 内边距，不再另扣 48px。 */
    width: 100%;
    bottom: 45px;
    font-size: 15px;
    line-height: 1.6;
  }

  /* 数据展示卡片：手机端上移功能描述、把卡片收到底边，收紧字号与间距。 */
  .srs-product-hero.has-cards .srs-product-hero__desc {
    bottom: 120px;
  }

  .srs-product-hero__cards {
    bottom: 20px;
    gap: 20px;
    flex-wrap: wrap;
    padding: 0 20px;
  }

  .srs-product-hero__card {
    min-width: 0;
  }

  .srs-product-hero__cards .srs-product-hero__card-title {
    font-size: 22px;
  }

  .srs-product-hero__cards .srs-product-hero__card-desc {
    font-size: 12px;
  }

  .srs-product-hero__copy p,
  .srs-product-hero__copy span {
    font-size: 16px;
  }

  .srs-product-hero__copy h1 {
    margin: 12px 0;
    font-size: 36px;
  }

  .srs-product-hero__robots {
    top: 360px;
    width: 96vw;
  }

  .srs-product-hero__robots figure {
    width: 18vw;
  }

  .srs-product-hero__robots img {
    height: 220px;
  }

  .srs-product-hero__robots figcaption {
    font-size: 11px;
  }

  .srs-product-highlights {
    padding-top: 70px;
  }

  .srs-product-highlights .srs-product-heading h2 {
    font-size: 25px;
    line-height: 1.5;
  }

  .srs-product-highlights__types {
    width: 100%;
    margin: 35px auto 55px;
  }

  .srs-product-highlights__types span {
    font-size: 14px;
  }

  .srs-product-highlights__types img {
    width: 48px;
    height: 48px;
  }

  .srs-product-capability,
  .srs-product-capability--dark {
    padding: 70px 0;
  }

  .srs-product-capability__copy h2 {
    font-size: 26px;
    line-height: 1.35;
  }

  .srs-product-capability__copy>p {
    font-size: 16px;
    line-height: 1.75;
  }

  .srs-product-metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
  }

  .srs-product-metrics img {
    width: 36px;
    height: 36px;
  }

  .srs-product-metrics b {
    font-size: 16px;
  }

  .srs-product-metrics small {
    font-size: 12px;
    white-space: normal;
  }

  .srs-product-features {
    height: 750px;
    padding-top: 70px;
  }

  .srs-product-features .srs-product-heading p {
    font-size: 20px;
  }

  .srs-product-features__viewport {
    margin-top: 45px;
  }

  .srs-product-feature-card {
    width: 84vw;
    flex-basis: 84vw;
    height: 360px;
  }

  .srs-product-feature-card>div {
    left: 24px;
    right: 24px;
    bottom: 24px;
  }

  .srs-product-feature-card h3 {
    font-size: 21px;
    line-height: 1.45;
  }

  .srs-product-feature-card p {
    font-size: 13px;
  }

  .srs-product-features .srs-product-carousel-controls,
  .srs-product-scenes .srs-product-carousel-controls {
    margin-top: 45px;
  }

  .srs-product-carousel-controls>button {
    width: 46px;
    height: 46px;
  }

  .srs-product-specs {
    min-height: 1050px;
    padding-top: 70px;
  }

  .srs-product-specs__scroll {
    margin-top: 30px;
  }

  .srs-product-scenes {
    height: 760px;
    padding-top: 60px;
  }

  .srs-product-scenes .srs-product-heading {
    padding: 0 20px;
  }

  .srs-product-scenes .srs-product-heading p {
    width: auto;
  }

  .srs-product-scenes__track article {
    width: 84vw;
    flex-basis: 84vw;
    height: 390px;
  }

  .srs-product-scenes__track h3 {
    left: 30px;
    bottom: 26px;
    font-size: 24px;
  }

  .srs-product-cases__grid {
    gap: 24px;
  }

  .srs-product-more {
    height: 860px;
    padding-top: 70px;
  }

  .srs-product-more__inner {
    --more-gutter: 20px;
  }

  .srs-product-more__track article {
    width: 84vw;
    flex-basis: 84vw;
    height: 520px;
  }

  .srs-product-more__track h3 {
    font-size: 22px;
  }

  .srs-product-more__track img {
    margin-top: 70px;
  }

  .srs-product-more__controls {
    width: 100%;
    max-width: none;
    grid-template-columns: 95px 1fr;
    gap: 20px;
  }

  .srs-product-more__controls>a {
    display: none;
  }
}


/* Newly added Arclys sections: responsive layout */
@media (max-width: 1480px) {
  .srs-product-why-arclys {
    min-height: 0;
    padding-right: 40px;
    padding-bottom: 60px;
    padding-left: 40px;
  }

  .srs-product-why-arclys__grid {
    gap: 40px;
    margin-top: 60px;
  }

  .srs-product-why-arclys__inner {
    max-width: calc(100% - 64px);
  }

  .srs-product-why-arclys__card {
    height: 400px;
  }

  .srs-product-why-arclys__card h3 {
    font-size: 24px;
  }

  .srs-product-why-arclys__card h3 span {
    font-size: 32px;
  }

  .srs-product-why-arclys__card p {
    width: 100%;
    margin: 10px 0 0;
    font-size: 18px;
  }

  .srs-product-why-arclys__card figure {
    height: 180px;
  }
}

@media (max-width: 900px) {
  .srs-product-performance {
    height: auto;
    padding: 42px 0;
  }

  .srs-product-performance__inner {
    width: auto;
    max-width: calc(100% - 40px);
    height: auto;
    padding-top: 0;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .srs-product-performance__item {
    min-height: 112px;
    padding: 17px 10px 24px;
  }

  .srs-product-performance__item:nth-child(-n+2) {
    border-bottom: 1px solid #e3e4e7;
  }

  .srs-product-performance__item:not(:first-child)::before {
    display: none;
  }

  .srs-product-performance__item:nth-child(even)::before {
    display: block;
    top: 21px;
    height: 65px;
  }

  .srs-product-performance__item strong {
    font-size: 32px;
    line-height: 42px;
  }

  .srs-product-performance__item span {
    margin-top: 7px;
    font-size: 20px;
    line-height: 30px;
  }

  .srs-product-performance__icon {
    height: 32px;
    margin-bottom: 10px;
  }

  .srs-product-why-arclys {
    padding: 80px 24px 100px;
  }

  .srs-product-why-arclys .srs-product-heading h2 {
    font-size: 36px;
    line-height: 50px;
  }

  .srs-product-why-arclys .srs-product-heading p {
    font-size: 20px;
    line-height: 31px;
  }

  .srs-product-why-arclys__grid {
    grid-template-columns: 1fr;
    gap: 24px;
    margin-top: 52px;
  }

  .srs-product-why-arclys__card {
    width: min(640px, 100%);
    height: 540px;
    margin: 0 auto;
  }
}

@media (max-width: 640px) {
  .srs-product-performance {
    padding: 30px 0;
  }

  .srs-product-performance__item {
    min-height: 96px;
    padding: 16px 6px 20px;
  }

  .srs-product-performance__item:nth-child(even)::before {
    top: 17px;
    height: 58px;
  }

  .srs-product-performance__item strong {
    font-size: 26px;
    line-height: 34px;
    letter-spacing: 0;
  }

  .srs-product-performance__item span {
    font-size: 16px;
    line-height: 24px;
  }

  .srs-product-performance__icon {
    height: 28px;
    margin-bottom: 8px;
  }

  .srs-product-why-arclys {
    padding: 68px 20px 80px;
  }

  .srs-product-why-arclys .srs-product-heading h2 {
    font-size: 30px;
    line-height: 42px;
  }

  .srs-product-why-arclys .srs-product-heading p {
    margin-top: 12px;
    font-size: 16px;
    line-height: 26px;
  }

  .srs-product-why-arclys__grid {
    margin-top: 40px;
  }

  .srs-product-why-arclys__card {
    min-height: 0;
    height: auto;
    padding: 28px 20px 20px;
  }

  .srs-product-why-arclys__card h3 {
    font-size: 22px;
    line-height: 34px;
    letter-spacing: 0;
  }

  .srs-product-why-arclys__card h3 span {
    font-size: 30px;
    line-height: 34px;
  }

  .srs-product-why-arclys__card p {
    margin-top: 14px;
    font-size: 16px;
    line-height: 27px;
  }

  .srs-product-why-arclys__card figure {
    height: auto;
    aspect-ratio: 561/240;
    margin-top: 34px;
  }
}

@media (prefers-reduced-motion: reduce) {

  .srs-loop__track,
  .srs-product-more__track,
  .srs-product-reveal {
    transition-duration: .01ms !important;
  }
}

/* ── 产品分类归档：产品卡片网格 ────────────────────────────────────
   静态稿无产品列表页，此为新增设计。沿用产品详情页的浅灰底 + 白卡语言。 */
.srs-product-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  margin: 48px 0 120px;
}

.srs-product-card {
  background: #fff;
  border: 1px solid #ececee;
  border-radius: 12px;
  overflow: hidden;
  transition: box-shadow .28s, transform .28s;
}

.srs-product-card:hover {
  box-shadow: 0 18px 40px rgba(0, 0, 0, .08);
  transform: translateY(-4px);
}

.srs-product-card__link {
  color: inherit;
  display: block;
  text-decoration: none;
}

.srs-product-card__media {
  align-items: center;
  aspect-ratio: 4 / 3;
  background: #f6f7f8;
  display: flex;
  justify-content: center;
  overflow: hidden;
  padding: 24px;
}

.srs-product-card__media img {
  height: 100%;
  object-fit: contain;
  width: 100%;
}

.srs-product-card__body {
  padding: 24px 26px 28px;
}

.srs-product-card__label {
  color: #0a5cff;
  font-size: 13px;
  letter-spacing: .04em;
  margin: 0 0 10px;
}

.srs-product-card__title {
  font-size: 20px;
  font-weight: 500;
  line-height: 1.4;
  margin: 0;
}

.srs-product-card__subtitle {
  color: #666;
  font-size: 14px;
  line-height: 1.7;
  margin: 10px 0 0;
}

.srs-product-card__models {
  border-top: 1px solid #f0f0f2;
  color: #999;
  font-size: 13px;
  margin: 18px 0 0;
  padding-top: 14px;
}

@media (max-width: 640px) {
  .srs-product-grid {
    gap: 18px;
    grid-template-columns: 1fr;
    margin: 32px 0 80px;
  }
}