.page-products {
  --pp-gap: clamp(18px, 2.4vw, 32px);
  --pp-band: clamp(48px, 6.5vw, 96px);
  --pp-card-pad: clamp(16px, 2vw, 24px);
  background:
    linear-gradient(180deg, rgba(34, 224, 255, .05) 0, transparent 340px),
    var(--void);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-products h1,
.page-products h2,
.page-products h3 {
  font-family: var(--font-head);
  letter-spacing: -0.02em;
  line-height: 1.14;
  margin: 0;
  color: var(--text);
  text-wrap: balance;
}

.page-products p {
  margin: 0 0 1em;
}

.page-products p:last-child {
  margin-bottom: 0;
}

/* ---------- 面包屑 ---------- */
.page-products .products-crumbs {
  padding-top: clamp(16px, 2.6vw, 30px);
}

.page-products .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-data);
  font-size: var(--fs-note);
  letter-spacing: .02em;
  color: var(--dim);
}

.page-products .breadcrumb__item {
  display: inline-flex;
  align-items: center;
}

.page-products .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin: 0 .65em;
  color: var(--line);
}

.page-products .breadcrumb__item a {
  color: var(--cyan);
  text-decoration: none;
  transition: color var(--ease);
}

.page-products .breadcrumb__item a:hover,
.page-products .breadcrumb__item a:focus-visible {
  color: var(--pulse);
}

.page-products .breadcrumb__item [aria-current="page"] {
  color: var(--dim);
}

/* ---------- 首屏 ---------- */
.page-products .products-hero {
  position: relative;
  padding: clamp(26px, 4vw, 52px) 0 clamp(40px, 6vw, 80px);
  overflow: hidden;
}

.page-products .products-hero::before {
  content: "";
  position: absolute;
  top: -20vmin;
  right: -14vmin;
  width: 68vmin;
  height: 68vmin;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(34, 224, 255, .11) 0 21%,
    transparent 21% 38%,
    rgba(34, 224, 255, .065) 38% 49%,
    transparent 49% 64%,
    rgba(34, 224, 255, .04) 64% 100%
  );
  pointer-events: none;
}

.page-products .products-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line) 22%, var(--line) 78%, transparent);
}

.page-products .products-hero__inner {
  position: relative;
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: start;
}

.page-products .products-hero__title {
  font-size: var(--fs-hero);
  font-weight: 800;
  margin-bottom: .45em;
}

.page-products .products-hero__lead {
  max-width: 36em;
  color: var(--dim);
  font-size: clamp(16px, 1.15vw, 18px);
  margin-bottom: 1.6em;
}

.page-products .products-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products .products-hero__aside {
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(12, 20, 40, .96), rgba(5, 7, 14, .96));
  padding: var(--pp-card-pad);
  position: relative;
}

.page-products .products-hero__aside::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(42, 58, 85, .34) 1px, transparent 1px),
    linear-gradient(180deg, rgba(42, 58, 85, .34) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: .34;
  pointer-events: none;
}

.page-products .products-hero__aside-label {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  font-family: var(--font-data);
  font-size: var(--fs-note);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--sage);
}

.page-products .products-hero__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--pulse);
  box-shadow: 0 0 0 4px rgba(255, 106, 26, .16);
}

.page-products .hero-specs {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin: 0;
}

.page-products .hero-specs__item {
  background: var(--panel);
  padding: 14px 14px 16px;
}

.page-products .hero-specs dt {
  font-size: var(--fs-note);
  color: var(--dim);
  margin-bottom: 8px;
  line-height: 1.4;
}

.page-products .hero-specs dd {
  margin: 0;
  font-family: var(--font-data);
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1;
  color: var(--cyan);
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.page-products .hero-specs dd span {
  font-size: var(--fs-note);
  color: var(--dim);
  font-family: var(--font-body);
}

/* ---------- 章节头 ---------- */
.page-products .products-feature .shell {
  display: grid;
  gap: clamp(24px, 3vw, 44px);
}

.page-products .products-feature__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(14px, 2vw, 26px);
  align-items: start;
}

.page-products .products-feature__head .section-lead {
  margin-top: 12px;
  max-width: 44em;
  color: var(--dim);
}

.page-products .products-feature__grid {
  display: grid;
  gap: clamp(24px, 3vw, 44px);
  align-items: start;
}

.page-products .products-feature__body p {
  color: var(--text);
  max-width: 40em;
}

.page-products .products-points {
  list-style: none;
  margin: 1.3em 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .products-points li {
  position: relative;
  padding-left: 22px;
  font-size: var(--fs-note);
  color: var(--dim);
  line-height: 1.7;
}

.page-products .products-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 11px;
  height: 2px;
  background: var(--pulse);
}

/* ---------- 图形与参数卡 ---------- */
.page-products .products-feature__visual {
  display: grid;
  gap: clamp(14px, 2vw, 20px);
}

.page-products .products-feature__visual .media-frame {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
}

.page-products .products-feature__visual img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(1.05) contrast(1.02);
}

.page-products .products-feature__visual .media-frame__caption {
  padding: 12px 16px;
  font-size: var(--fs-note);
  color: var(--dim);
  border-top: 1px solid var(--line);
  background: rgba(12, 20, 40, .72);
}

.page-products .products-params {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .products-params .stat {
  background: var(--panel);
  padding: 14px 14px 16px;
  transition: background var(--ease), outline-color var(--ease);
  outline: 1px solid transparent;
  outline-offset: -1px;
}

.page-products .products-params .stat:hover,
.page-products .products-params .stat:focus-within {
  background: var(--lift);
  outline-color: var(--cyan);
}

.page-products .stat__value {
  display: block;
  font-family: var(--font-data);
  font-size: clamp(22px, 2.5vw, 32px);
  line-height: 1.05;
  color: var(--cyan);
  letter-spacing: -0.01em;
}

.page-products .stat__label {
  display: block;
  margin-top: 8px;
  font-size: var(--fs-note);
  color: var(--dim);
  line-height: 1.45;
}

/* ---------- 只看重点场次 演示 ---------- */
.page-products .focus-demo {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--panel), var(--void));
  padding: var(--pp-card-pad);
  position: relative;
}

.page-products .focus-demo__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-products .focus-demo__switch {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  user-select: none;
  margin-bottom: 18px;
  font-size: var(--fs-note);
  letter-spacing: .02em;
  color: var(--text);
}

.page-products .focus-demo__track {
  position: relative;
  display: block;
  width: 50px;
  height: 26px;
  flex: 0 0 auto;
  border: 1px solid var(--line);
  background: var(--void);
  transition: border-color var(--ease), background var(--ease);
}

.page-products .focus-demo__knob {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  background: var(--dim);
  transition: transform 180ms cubic-bezier(.32, .72, .28, 1), background var(--ease);
}

.page-products .focus-demo__input:checked ~ .focus-demo__switch .focus-demo__track {
  border-color: var(--pulse);
  background: rgba(255, 106, 26, .14);
}

.page-products .focus-demo__input:checked ~ .focus-demo__switch .focus-demo__knob {
  transform: translateX(24px);
  background: var(--pulse);
}

.page-products .focus-demo__input:focus-visible ~ .focus-demo__switch .focus-demo__track {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-products .focus-demo__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .focus-demo__row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 12px 14px;
  background: var(--void);
  transition: opacity 200ms ease, filter 200ms ease, background var(--ease);
}

.page-products .focus-demo__row.is-key {
  background: rgba(255, 106, 26, .06);
  box-shadow: inset 2px 0 0 var(--pulse);
}

.page-products .focus-demo__input:not(:checked) ~ .focus-demo__list .focus-demo__row:not(.is-key) {
  opacity: .18;
  filter: saturate(0);
}

.page-products .focus-demo__time {
  font-family: var(--font-data);
  font-size: var(--fs-note);
  color: var(--cyan);
  letter-spacing: .02em;
}

.page-products .focus-demo__match {
  font-size: var(--fs-note);
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---------- 刷新刻度 ---------- */
.page-products .pulse-scale {
  border: 1px solid var(--line);
  background: var(--panel);
  padding: 18px 20px 14px;
}

.page-products .pulse-scale__ticks {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 3px;
  height: 42px;
}

.page-products .pulse-scale__ticks span {
  flex: 1 1 0;
  height: 10px;
  background: var(--line);
  transition: background var(--ease), height 180ms ease;
}

.page-products .pulse-scale__ticks span:nth-child(3n) {
  height: 24px;
  background: var(--sage);
}

.page-products .pulse-scale__ticks span:nth-child(6n) {
  height: 32px;
  background: var(--cyan);
}

.page-products .pulse-scale__ticks span:last-child {
  height: 42px;
  background: var(--pulse);
}

.page-products .pulse-scale__foot {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
  font-family: var(--font-data);
  font-size: var(--fs-note);
  color: var(--dim);
  letter-spacing: .04em;
}

/* ---------- 版本时间线 ---------- */
.page-products .products-version .shell {
  display: grid;
  gap: clamp(24px, 3vw, 44px);
}

.page-products .products-version .section-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(14px, 2vw, 26px);
  align-items: start;
}

.page-products .products-version .section-lead {
  margin-top: 12px;
  max-width: 44em;
  color: var(--dim);
}

.page-products .version-track {
  list-style: none;
  margin: 0;
  padding: 0 0 0 24px;
  position: relative;
  display: grid;
  gap: clamp(20px, 2.6vw, 32px);
}

.page-products .version-track::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan) 0, var(--pulse) 55%, transparent 100%);
}

.page-products .version-track__item {
  position: relative;
  border: 1px solid var(--line);
  background: var(--panel);
  padding: clamp(16px, 2vw, 22px);
  transition: border-color var(--ease), background var(--ease);
}

.page-products .version-track__item::before {
  content: "";
  position: absolute;
  left: -24px;
  top: 22px;
  width: 9px;
  height: 9px;
  background: var(--void);
  border: 1px solid var(--cyan);
}

.page-products .version-track__item:hover,
.page-products .version-track__item:focus-within {
  border-color: var(--cyan);
  background: var(--lift);
}

.page-products .version-track__label {
  margin: 0 0 10px;
  font-family: var(--font-data);
  font-size: var(--fs-note);
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--sage);
}

.page-products .version-track__title {
  font-size: var(--fs-h3);
  margin-bottom: 10px;
}

.page-products .version-track__text {
  margin: 0;
  color: var(--dim);
  font-size: var(--fs-note);
  line-height: 1.75;
  max-width: 48em;
}

/* ---------- 收尾 ---------- */
.page-products .products-next {
  position: relative;
  border-top: 1px solid var(--line);
  background:
    radial-gradient(circle at 88% 0, rgba(34, 224, 255, .10), transparent 55%),
    linear-gradient(180deg, var(--panel), var(--void));
}

.page-products .products-next__inner {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
  align-items: center;
}

.page-products .products-next__title {
  font-size: var(--fs-h2);
  margin-bottom: .5em;
}

.page-products .products-next__text {
  color: var(--dim);
  max-width: 42em;
  margin: 0;
}

.page-products .products-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 中等宽度 ---------- */
@media (min-width: 760px) {
  .page-products .products-hero__inner {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-products .products-feature__grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-products .products-next__inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  }

  .page-products .products-next__actions {
    justify-content: flex-end;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1024px) {
  .page-products .products-feature__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.18fr);
    gap: clamp(36px, 4.5vw, 72px);
  }

  .page-products .products-feature--flip .products-feature__body {
    order: 2;
  }

  .page-products .products-feature--flip .products-feature__visual {
    order: 1;
  }

  .page-products .products-version .shell {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-products .version-track {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
    padding: 0;
  }

  .page-products .version-track::before {
    display: none;
  }

  .page-products .version-track__item {
    border: 0;
    padding: clamp(20px, 2.2vw, 28px);
  }

  .page-products .version-track__item::before {
    left: 0;
    top: 0;
    width: 100%;
    height: 2px;
    border: 0;
    background: transparent;
  }

  .page-products .version-track__item:hover::before,
  .page-products .version-track__item:focus-within::before {
    background: var(--pulse);
  }
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-products .focus-demo__knob,
  .page-products .focus-demo__row,
  .page-products .focus-demo__track,
  .page-products .products-params .stat,
  .page-products .version-track__item {
    transition: none;
  }
}