.page-products {
  --pp-line: rgba(203, 216, 230, 0.12);
  --pp-line-hi: rgba(203, 216, 230, 0.26);
  --pp-panel: #12224A;
  --pp-radius: 18px;
  --pp-radius-sm: 12px;
  padding-top: 84px;
  padding-bottom: 84px;
}

.page-products img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-products .breadcrumb {
  margin-bottom: 26px;
}

/* ---------- 首屏 ---------- */
.page-products .hero-product {
  display: grid;
  gap: 34px;
  align-items: center;
}

.page-products .hero-product__title {
  margin: 14px 0 0;
  font-size: clamp(38px, 8.4vw, 86px);
  line-height: 0.98;
  letter-spacing: -0.02em;
}

.page-products .hero-product__lead {
  margin-top: 20px;
  max-width: 46ch;
}

.page-products .hero-product__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-products .hero-product__meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 22px;
  margin: 36px 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--pp-line);
}

.page-products .hero-product__meta-item dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ice-mid);
}

.page-products .hero-product__meta-item dd {
  margin: 6px 0 0;
  font-family: var(--font-display);
  font-size: 25px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ice);
  line-height: 1.1;
}

.page-products .hero-product__figure {
  border-radius: var(--pp-radius);
  overflow: hidden;
  box-shadow: 0 40px 90px -60px rgba(43, 245, 160, 0.5);
}

/* ---------- 主布局 ---------- */
.page-products .products-layout {
  display: grid;
  gap: 44px;
  margin-top: 76px;
}

.page-products .products-rail .anchor-nav {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: none;
}

.page-products .products-rail .anchor-nav::-webkit-scrollbar {
  display: none;
}

.page-products .products-rail .anchor-nav__link {
  display: block;
  white-space: nowrap;
  padding: 8px 12px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--ice-mid);
  text-decoration: none;
  transition: color 200ms var(--ease), background 200ms var(--ease);
}

.page-products .products-rail .anchor-nav__link:hover,
.page-products .products-rail .anchor-nav__link:focus-visible {
  color: var(--ice);
  background: var(--glass);
}

.page-products .products-section {
  padding-block: 48px;
  scroll-margin-top: 108px;
}

.page-products .products-section + .products-section::before {
  content: "";
  display: block;
  width: 68px;
  height: 3px;
  margin-bottom: 40px;
  transform: skewX(-26deg);
  background: linear-gradient(90deg, var(--neon), rgba(43, 245, 160, 0));
}

.page-products .section-head {
  margin-bottom: 34px;
}

.page-products .products-section__lead {
  margin-top: 14px;
  max-width: 60ch;
  color: var(--ice-mid);
  font-size: 16px;
  line-height: 1.85;
}

.page-products .products-figure {
  margin-top: 34px;
}

/* ---------- 三种形态 ---------- */
.page-products .device-grid {
  display: grid;
  gap: 16px;
}

.page-products .device-card {
  position: relative;
  padding: 26px 22px 26px;
  background: var(--pp-panel);
  border: 1px solid var(--pp-line);
  border-radius: var(--pp-radius);
  overflow: hidden;
  transition: border-color 240ms var(--ease), transform 240ms var(--ease);
}

.page-products .device-card::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 3px;
  background: linear-gradient(90deg, var(--neon), rgba(43, 245, 160, 0));
  opacity: 0.55;
}

.page-products .device-card:hover {
  border-color: var(--pp-line-hi);
  transform: translateY(-3px);
}

.page-products .device-card__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--neon);
}

.page-products .device-card__name {
  margin: 12px 0 0;
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--ice);
}

.page-products .device-card__note {
  margin: 12px 0 0;
  color: var(--ice-mid);
  font-size: 15px;
  line-height: 1.8;
}

.page-products .device-card__list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.page-products .device-card__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ice);
}

.page-products .device-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 6px;
  height: 2px;
  background: var(--neon);
}

/* ---------- 核心功能 ---------- */
.page-products .feature-list {
  display: grid;
}

.page-products .feature-bar {
  display: grid;
  gap: 10px;
  padding: 24px 0;
  border-top: 1px solid var(--pp-line);
}

.page-products .feature-bar:last-child {
  border-bottom: 1px solid var(--pp-line);
}

.page-products .feature-bar__key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--neon);
}

.page-products .feature-bar__title {
  margin: 0;
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--ice);
  line-height: 1.5;
}

.page-products .feature-bar__body {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ice-mid);
}

.page-products .filter-demo {
  margin-top: 26px;
}

.page-products .filter-demo__hint {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--ice-mid);
}

/* ---------- 对比视图 ---------- */
.page-products .compare-block {
  display: grid;
  gap: 26px;
  margin-top: 46px;
  align-items: center;
}

.page-products .compare-block__figure {
  border-radius: var(--pp-radius);
  overflow: hidden;
}

.page-products .compare-block__copy h3 {
  margin: 10px 0 0;
}

.page-products .compare-block__copy p {
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ice-mid);
}

.page-products .compare-block__copy .btn {
  margin-top: 22px;
}

/* ---------- 订阅层级 ---------- */
.page-products .plan-switch {
  margin-bottom: 24px;
}

.page-products .plan-grid {
  display: grid;
  gap: 16px;
}

.page-products .plan {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 26px 22px 22px;
  background: var(--pp-panel);
  border: 1px solid var(--pp-line);
  border-radius: var(--pp-radius);
  transition: border-color 260ms var(--ease), box-shadow 260ms var(--ease);
}

.page-products .plan.is-active {
  border-color: var(--neon);
  box-shadow: 0 0 0 1px rgba(43, 245, 160, 0.3), 0 34px 70px -46px rgba(43, 245, 160, 0.6);
}

.page-products .plan__index {
  margin: 0;
  font-family: var(--font-display);
  font-size: 46px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--ice-dim);
  transition: color 260ms var(--ease);
}

.page-products .plan.is-active .plan__index {
  color: var(--neon);
}

.page-products .plan__name {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 23px;
  font-weight: 700;
  color: var(--ice);
}

.page-products .plan__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ice-mid);
}

.page-products .plan__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.page-products .plan__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ice);
}

.page-products .plan__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 2px;
  background: var(--ice-dim);
}

.page-products .plan.is-active .plan__list li::before {
  background: var(--neon);
}

.page-products .plan__fit {
  margin: 0;
  padding: 10px 12px;
  border-radius: var(--pp-radius-sm);
  background: rgba(255, 255, 255, 0.05);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  line-height: 1.7;
  color: var(--ice-mid);
}

.page-products .plan__scale {
  display: flex;
  gap: 4px;
  margin-top: auto;
  padding-top: 18px;
}

.page-products .plan__scale span {
  flex: 1;
  height: 3px;
  border-radius: 2px;
  background: var(--ice-dim);
  transition: background 260ms var(--ease);
}

.page-products .plan.is-active .plan__scale span {
  background: var(--neon);
}

.page-products .plan.is-active .plan__scale span:nth-child(3) {
  background: var(--flare);
}

/* ---------- 版本演进 ---------- */
.page-products .version-track {
  display: grid;
  gap: 12px;
}

.page-products .version-item {
  background: var(--pp-panel);
  border: 1px solid var(--pp-line);
  border-radius: var(--pp-radius);
  overflow: hidden;
}

.page-products .version-item--current {
  border-color: rgba(43, 245, 160, 0.45);
}

.page-products .version-item .disclosure__toggle {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 20px;
  background: none;
  border: 0;
  cursor: pointer;
  text-align: left;
  color: var(--ice);
}

.page-products .version-item__year {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--neon);
}

.page-products .version-item__name {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  line-height: 1.6;
  color: var(--ice-mid);
}

.page-products .version-item .disclosure__inner p {
  margin: 0;
  padding: 0 20px 22px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ice-mid);
}

.page-products .version-footnote {
  margin: 26px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ice-mid);
}

.page-products .version-footnote a {
  color: var(--neon);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ---------- 导出与接口 ---------- */
.page-products .export-grid {
  display: grid;
  gap: 16px;
}

.page-products .export-card {
  padding: 26px 22px 28px;
  background: var(--pp-panel);
  border: 1px solid var(--pp-line);
  border-radius: var(--pp-radius);
}

.page-products .export-card__key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--flare);
}

.page-products .export-card__name {
  margin: 12px 0 0;
  font-family: var(--font-serif);
  font-size: 21px;
  font-weight: 700;
  color: var(--ice);
}

.page-products .export-card__desc {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ice-mid);
}

.page-products .export-note {
  margin-top: 20px;
  padding: 26px 22px 28px;
  border-radius: var(--pp-radius);
}

.page-products .export-note__title {
  margin: 10px 0 0;
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--ice);
}

.page-products .export-note p {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ice-mid);
}

.page-products .export-note a {
  color: var(--neon);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ---------- 下载与设备 ---------- */
.page-products .device-switch {
  margin-bottom: 24px;
}

.page-products .install-grid {
  display: grid;
  gap: 16px;
}

.page-products .install-card {
  padding: 26px 22px;
  background: var(--pp-panel);
  border: 1px solid var(--pp-line);
  border-radius: var(--pp-radius);
}

.page-products .install-card__name {
  margin: 0 0 18px;
  font-family: var(--font-serif);
  font-size: 21px;
  font-weight: 700;
  color: var(--ice);
}

.page-products .install-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: pp-step;
  display: grid;
  gap: 14px;
}

.page-products .install-steps li {
  counter-increment: pp-step;
  position: relative;
  padding-left: 34px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ice);
}

.page-products .install-steps li::before {
  content: counter(pp-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--neon);
}

.page-products .install-card__req {
  margin: 22px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--pp-line);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ice-mid);
}

.page-products .install-card__req-k {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--ice-mid);
}

.page-products .install-help {
  margin-top: 20px;
  padding: 22px;
  border-radius: var(--pp-radius);
}

.page-products .install-help p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ice-mid);
}

.page-products .install-help a {
  color: var(--neon);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ---------- 使用场景 ---------- */
.page-products .user-grid {
  display: grid;
  gap: 16px;
}

.page-products .user-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px 22px 26px;
  background: var(--pp-panel);
  border: 1px solid var(--pp-line);
  border-radius: var(--pp-radius);
  transition: border-color 240ms var(--ease);
}

.page-products .user-card:hover {
  border-color: var(--pp-line-hi);
}

.page-products .user-card__role {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--flare);
}

.page-products .user-card__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ice);
}

.page-products .user-card p:not(.user-card__role) {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ice-mid);
}

.page-products .user-card__link {
  margin-top: auto;
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 245, 160, 0.4);
  padding-bottom: 2px;
}

.page-products .user-card__link:hover {
  border-bottom-color: var(--neon);
}

/* ---------- 桌面端增强 ---------- */
@media (min-width: 760px) {
  .page-products .device-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .user-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .export-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .install-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 880px) {
  .page-products .hero-product {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    column-gap: 56px;
  }

  .page-products .feature-bar {
    grid-template-columns: 150px minmax(0, 1fr) minmax(0, 1.4fr);
    gap: 10px 30px;
    align-items: baseline;
  }

  .page-products .compare-block {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    column-gap: 46px;
  }

  .page-products .plan-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-products .version-track {
    grid-auto-flow: column;
    grid-auto-columns: minmax(252px, 1fr);
    overflow-x: auto;
    padding-bottom: 16px;
    scroll-snap-type: x proximity;
  }

  .page-products .version-item {
    scroll-snap-align: start;
    align-content: start;
  }
}

@media (min-width: 1040px) {
  .page-products .hero-product__meta {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .products-layout {
    grid-template-columns: 178px minmax(0, 1fr);
    column-gap: 62px;
    align-items: start;
  }

  .page-products .products-rail {
    position: sticky;
    top: 108px;
  }

  .page-products .products-rail .anchor-nav {
    flex-direction: column;
    overflow: visible;
    gap: 2px;
    padding-bottom: 0;
  }

  .page-products .products-rail .anchor-nav__link {
    padding: 8px 10px;
  }

  .page-products .products-section {
    padding-block: 60px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .device-card,
  .page-products .plan,
  .page-products .user-card,
  .page-products .plan__index,
  .page-products .plan__scale span {
    transition: none;
    transform: none;
  }
}