.page-products {
  --p-line: rgba(70, 86, 94, 0.55);
  --p-grid: rgba(155, 176, 186, 0.055);
  --p-gap: clamp(2.75rem, 7vw, 6rem);
  background-color: var(--ink);
  color: var(--white);
  background-image:
    linear-gradient(var(--p-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--p-grid) 1px, transparent 1px);
  background-size: 40px 40px;
  overflow-x: hidden;
}

.page-products p {
  line-height: 1.75;
}

.page-products .breadcrumb-sep {
  margin-inline: 0.5rem;
  color: var(--line);
}

/* ---------- 首屏 ---------- */

.page-products .apps-hero {
  padding-block: clamp(2.25rem, 5vw, 3.5rem) clamp(2.5rem, 6vw, 4.5rem);
}

.page-products .apps-hero__inner {
  display: grid;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: start;
}

@media (min-width: 900px) {
  .page-products .apps-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

.page-products .apps-hero__eyebrow {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cold);
}

.page-products .apps-hero h1 {
  margin: 0.7rem 0 1.15rem;
  font-family: var(--narrow);
  font-weight: 800;
  font-size: clamp(2.4rem, 5.6vw, 4.2rem);
  line-height: 1.02;
  letter-spacing: -0.01em;
  max-width: 15ch;
}

.page-products .apps-hero__lede {
  margin: 0 0 1.75rem;
  max-width: 46ch;
  font-size: 1.02rem;
  color: var(--cold);
}

.page-products .apps-hero__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-products .apps-hero__toc {
  display: grid;
  align-content: start;
  margin: 0;
  padding-left: 1.1rem;
  border-left: 3px solid var(--signal);
}

.page-products .apps-hero__toc li + li {
  border-top: 1px solid var(--p-line);
}

.page-products .apps-hero__toc a {
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  padding: 0.9rem 0;
  color: var(--white);
  text-decoration: none;
  font-weight: 500;
  font-size: 1rem;
  transition: color 0.2s var(--ease);
}

.page-products .apps-hero__toc a:hover,
.page-products .apps-hero__toc a:focus-visible {
  color: var(--amber);
}

.page-products .apps-hero__toc .mono {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--signal);
}

/* ---------- 总览 ---------- */

.page-products .overview {
  padding-bottom: var(--p-gap);
  border-top: 1px solid var(--p-line);
  padding-top: clamp(2rem, 5vw, 3.25rem);
}

.page-products .overview__head h2 {
  margin: 0 0 0.6rem;
  font-family: var(--narrow);
  font-weight: 800;
  font-size: clamp(1.75rem, 3.6vw, 2.6rem);
  line-height: 1.1;
}

.page-products .overview__head p {
  margin: 0;
  max-width: 60ch;
  color: var(--cold);
  font-size: 0.98rem;
}

.page-products .filterbar {
  display: flex;
  gap: 0.5rem;
  margin-block: 1.6rem 1.75rem;
  padding-bottom: 0.25rem;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-products .filterbar::-webkit-scrollbar {
  display: none;
}

.page-products .filterbar .tag {
  flex: 0 0 auto;
  padding: 0.5rem 1rem;
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: var(--cold);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--r);
  cursor: pointer;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-products .filterbar .tag:hover {
  color: var(--white);
  border-color: var(--grass);
}

.page-products .filterbar .tag.is-active,
.page-products .filterbar .tag[aria-pressed="true"] {
  color: var(--signal);
  border-color: var(--signal);
  background-color: rgba(255, 106, 26, 0.09);
}

.page-products .overview__grid {
  display: grid;
  gap: 1px;
  margin: 0;
  grid-template-columns: minmax(0, 1fr);
  background-color: var(--p-line);
  border: 1px solid var(--p-line);
}

@media (min-width: 700px) {
  .page-products .overview__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  .page-products .overview__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-products .overview__item {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.6rem 1.35rem 1.5rem;
  background-color: var(--field);
}

.page-products .overview__icon {
  width: 28px;
  height: 28px;
  color: var(--signal);
}

.page-products .overview__item h3 {
  margin: 0;
  font-family: var(--narrow);
  font-weight: 700;
  font-size: 1.18rem;
  letter-spacing: 0.01em;
}

.page-products .overview__item p {
  margin: 0;
  font-size: 0.94rem;
  color: var(--cold);
}

.page-products .overview__jump {
  margin-top: auto;
  padding-top: 0.75rem;
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--grass);
  text-decoration: none;
}

.page-products .overview__jump:hover,
.page-products .overview__jump:focus-visible {
  color: var(--amber);
}

/* ---------- 工具区块 ---------- */

.page-products .tool {
  padding-block: var(--p-gap);
  border-top: 1px solid var(--p-line);
}

.page-products .tool__head {
  display: grid;
  gap: 0.85rem;
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
}

@media (min-width: 768px) {
  .page-products .tool__head {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 0.5rem 2rem;
    align-items: start;
  }
}

.page-products .tool__num {
  font-family: var(--narrow);
  font-weight: 800;
  font-size: clamp(3.6rem, 12vw, 7.5rem);
  line-height: 0.78;
  letter-spacing: -0.03em;
  color: var(--signal);
}

.page-products .tool__title h2 {
  margin: 0 0 0.6rem;
  font-family: var(--narrow);
  font-weight: 800;
  font-size: clamp(1.7rem, 3.6vw, 2.5rem);
  line-height: 1.1;
}

.page-products .tool__title p {
  margin: 0;
  max-width: 56ch;
  font-size: 1rem;
  color: var(--cold);
}

.page-products .tool__body {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
}

@media (min-width: 900px) {
  .page-products .tool__body {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-products .tool__body--flip {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  .page-products .tool__body--flip .tool__figure {
    order: 1;
  }

  .page-products .tool__body--flip .steps {
    order: 2;
  }
}

.page-products .steps {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--p-line);
}

.page-products .steps__item {
  display: grid;
  grid-template-columns: 2.2rem minmax(0, 1fr);
  gap: 0 0.9rem;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--p-line);
}

.page-products .steps__num {
  grid-column: 1;
  grid-row: 1;
  padding-top: 0.22rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--grass);
  transition: color 0.4s var(--ease);
}

.page-products .steps.is-visible .steps__num,
.page-products .steps:hover .steps__num {
  color: var(--signal);
}

.page-products .steps__text {
  grid-column: 2;
  grid-row: 1;
}

.page-products .steps__text h3 {
  margin: 0 0 0.35rem;
  font-size: 1.04rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-products .steps__text p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--cold);
}

.page-products .tool__figure {
  margin: 0;
}

.page-products .tool__figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--p-line);
  object-fit: cover;
  filter: saturate(0.86) contrast(1.06);
}

.page-products .tool__figure--wide {
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
}

.page-products .tool__caption {
  display: block;
  margin-top: 0.6rem;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--cold);
}

.page-products .tool__note {
  padding: 1.35rem 1.25rem 1.5rem;
  background-color: var(--field);
  border-left: 3px solid var(--grass);
}

.page-products .tool__note h3 {
  margin: 0 0 0.55rem;
  font-size: 1rem;
  font-weight: 700;
}

.page-products .tool__note p {
  margin: 0;
  font-size: 0.93rem;
  color: var(--cold);
}

/* ---------- 三端矩阵 ---------- */

.page-products .matrix-section {
  padding-block: var(--p-gap);
  border-top: 1px solid var(--p-line);
}

.page-products .matrix-section__head h2 {
  margin: 0 0 0.6rem;
  font-family: var(--narrow);
  font-weight: 800;
  font-size: clamp(1.7rem, 3.6vw, 2.5rem);
  line-height: 1.1;
}

.page-products .matrix-section__head p {
  margin: 0;
  max-width: 60ch;
  font-size: 0.98rem;
  color: var(--cold);
}

.page-products .matrix-figure {
  margin: clamp(1.5rem, 4vw, 2.25rem) 0;
}

.page-products .matrix-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--p-line);
  object-fit: cover;
  filter: saturate(0.8) contrast(1.06);
}

.page-products .matrix {
  display: grid;
  border: 1px solid var(--p-line);
}

.page-products .matrix__row + .matrix__row {
  border-top: 1px solid var(--p-line);
}

.page-products .matrix__row > summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  padding: 1rem 1.15rem;
  background-color: var(--field);
  cursor: pointer;
  list-style: none;
}

.page-products .matrix__row > summary::-webkit-details-marker {
  display: none;
}

.page-products .matrix__action {
  font-family: var(--narrow);
  font-weight: 700;
  font-size: 1.08rem;
  letter-spacing: 0.01em;
}

.page-products .matrix__glance {
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--cold);
}

.page-products .matrix__row > summary::after {
  content: "＋";
  margin-left: auto;
  font-size: 0.95rem;
  color: var(--signal);
}

.page-products .matrix__row[open] > summary::after {
  content: "－";
}

.page-products .matrix__row > summary:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: -2px;
}

.page-products .matrix__cells {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 0;
  background-color: var(--p-line);
  border-top: 1px solid var(--p-line);
}

@media (min-width: 720px) {
  .page-products .matrix__cells {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-products .matrix__cells > div {
  padding: 1.05rem 1.15rem 1.35rem;
  background-color: var(--ink);
}

.page-products .matrix__cells dt {
  margin-bottom: 0.5rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--grass);
}

.page-products .matrix__cells dd {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--cold);
}

/* ---------- 无障碍 ---------- */

.page-products .a11y {
  padding-block: var(--p-gap);
  border-top: 1px solid var(--p-line);
}

.page-products .a11y__inner {
  display: grid;
  gap: clamp(1.5rem, 4vw, 3rem);
}

@media (min-width: 900px) {
  .page-products .a11y__inner {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    align-items: start;
  }
}

.page-products .a11y__lead h2 {
  margin: 0 0 0.6rem;
  font-family: var(--narrow);
  font-weight: 800;
  font-size: clamp(1.6rem, 3.2vw, 2.2rem);
  line-height: 1.12;
}

.page-products .a11y__lead p {
  margin: 0;
  font-size: 0.96rem;
  color: var(--cold);
}

.page-products .a11y__list {
  margin: 0;
  border-top: 1px solid var(--p-line);
}

.page-products .a11y__list li {
  display: grid;
  grid-template-columns: 2.2rem minmax(0, 1fr);
  gap: 0 0.9rem;
  padding: 0.95rem 0;
  border-bottom: 1px solid var(--p-line);
}

.page-products .a11y__idx {
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--amber);
  padding-top: 0.25rem;
}

.page-products .a11y__list p {
  margin: 0;
  font-size: 0.94rem;
  color: var(--cold);
}

/* ---------- 收尾 ---------- */

.page-products .closing {
  border-top: 1px solid var(--p-line);
  background-color: var(--field);
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
}

.page-products .closing__inner {
  display: grid;
  gap: 1.75rem;
}

.page-products .closing__lead h2 {
  margin: 0 0 0.75rem;
  font-family: var(--narrow);
  font-weight: 800;
  font-size: clamp(1.6rem, 3.4vw, 2.3rem);
  line-height: 1.12;
  max-width: 22ch;
}

.page-products .closing__lead p {
  margin: 0 0 1.5rem;
  max-width: 56ch;
  font-size: 0.98rem;
  color: var(--cold);
}

.page-products .closing__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-products .notice {
  margin: 0;
  padding: 0.9rem 1.1rem;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--white);
  background-color: rgba(209, 72, 58, 0.12);
  border-left: 3px solid var(--alert);
}

@media (min-width: 900px) {
  .page-products .closing__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .reveal,
  .page-products .stagger > * {
    opacity: 1 !important;
    transform: none !important;
    transition-delay: 0ms !important;
  }

  .page-products .steps__num {
    transition: none;
  }
}