.page-products {
  --px-gap: clamp(1.25rem, 3vw, 2.25rem);
  --px-sec: clamp(2.75rem, 7vw, 5rem);
  --px-line: var(--grid-line);
  width: min(var(--wrap), 100% - 2rem);
  margin-inline: auto;
  color: var(--white);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-products .crumbs {
  margin: 1.25rem 0 0;
}

.page-products .crumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .06em;
  color: var(--old);
}

.page-products .crumbs li + li::before {
  content: "/";
  margin-right: .5rem;
  color: var(--grid-line);
}

.page-products .crumbs a {
  color: var(--cyan-mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-products .crumbs a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- hero ---------- */

.page-products .px-hero {
  display: grid;
  gap: var(--px-gap);
  padding: clamp(1.5rem, 4vw, 2.75rem) 0 clamp(2rem, 5vw, 3.25rem);
  border-bottom: 1px solid var(--px-line);
}

.page-products .px-hero h1 {
  margin: .35rem 0 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(2.1rem, 7vw, 3.9rem);
  line-height: 1.08;
  letter-spacing: -.01em;
}

.page-products .px-hero .lead {
  margin: 1rem 0 0;
  max-width: 62ch;
  font-size: clamp(1rem, 1.6vw, 1.075rem);
  color: rgba(242, 246, 247, .82);
}

.page-products .px-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.5rem;
}

.page-products .px-hero__panel {
  border: 1px solid var(--px-line);
  background: var(--graphite);
  padding: .35rem 0 0;
}

.page-products .px-hero__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: .85rem 1.1rem .2rem;
}

.page-products .px-hero__label {
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--old);
}

.page-products .px-hero__value {
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 700;
  color: var(--cyan);
  line-height: 1;
}

.page-products .px-hero__value.num--old {
  color: var(--old);
}

.page-products .px-hero__note {
  margin: 0;
  padding: .25rem 1.1rem 1rem;
  border-bottom: 1px solid rgba(34, 57, 77, .7);
  font-size: .85rem;
  color: rgba(242, 246, 247, .68);
}

.page-products .px-hero__panel .px-hero__note:last-child {
  border-bottom: 0;
}

/* ---------- 通用分区 ---------- */

.page-products .px-sec {
  padding: var(--px-sec) 0;
  border-bottom: 1px solid var(--px-line);
}

.page-products .px-sec--last {
  border-bottom: 0;
}

.page-products .section-head {
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
  padding-bottom: .9rem;
  border-bottom: 1px solid var(--px-line);
}

.page-products .section-head h2 {
  margin: .3rem 0 0;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(1.5rem, 3.6vw, 2.35rem);
  line-height: 1.15;
  letter-spacing: -.005em;
}

.page-products .px-head-side {
  margin: .6rem 0 0;
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--old);
}

.page-products .px-media {
  margin: var(--px-gap) 0 0;
}

.page-products .px-media--compact {
  margin-top: 0;
}

/* ---------- 路径总览 ---------- */

.page-products .px-path__grid {
  display: grid;
  gap: var(--px-gap);
}

.page-products .px-path__copy p {
  margin: 0 0 1rem;
  color: rgba(242, 246, 247, .84);
}

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

.page-products .px-path__list li {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: .75rem;
  padding: .8rem 0;
  border-bottom: 1px solid var(--px-line);
  font-size: .95rem;
}

.page-products .px-path__list .mono {
  color: var(--cyan);
  font-size: .82rem;
  letter-spacing: .1em;
}

.page-products .px-path__sum {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .88rem;
  color: var(--amber);
}

.page-products .px-path__figure {
  margin: 0;
  padding: 1rem;
  border: 1px solid var(--px-line);
  background: linear-gradient(180deg, rgba(18, 41, 61, .85), rgba(11, 31, 51, .4));
}

.page-products .px-svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-products .px-svg__axis {
  stroke: var(--grid-line);
  stroke-width: 1;
  stroke-dasharray: 3 5;
}

.page-products .px-svg__line {
  fill: none;
  stroke-width: 2;
  stroke-linecap: square;
  stroke-dasharray: 1100;
  stroke-dashoffset: 1100;
}

.page-products .px-svg__line--old {
  stroke: var(--old);
}

.page-products .px-svg__line--new {
  stroke: var(--cyan);
  stroke-width: 2.5;
}

.page-products .px-svg__node {
  transition: r 160ms ease, fill 160ms ease;
}

.page-products .px-svg__node--old {
  fill: var(--old);
}

.page-products .px-svg__node--new {
  fill: var(--cyan-mist);
}

.page-products .px-svg__node:hover {
  r: 7;
  fill: var(--coral);
}

.page-products .px-svg.is-visible .px-svg__line {
  animation: px-draw 1500ms ease forwards;
}

@keyframes px-draw {
  to { stroke-dashoffset: 0; }
}

.page-products .px-path__figure .media-caption {
  margin-top: .75rem;
}

/* ---------- 对照区 ---------- */

.page-products .px-compare {
  position: relative;
}

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

.page-products .px-compare__switch {
  display: inline-flex;
  gap: 0;
  margin-bottom: 1.25rem;
  border: 1px solid var(--px-line);
}

.page-products .px-compare__switch label {
  padding: .5rem 1rem;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .08em;
  color: var(--old);
  cursor: pointer;
}

.page-products .px-compare__switch label + label {
  border-left: 1px solid var(--px-line);
}

.page-products #px-cmp-old:checked ~ .px-compare__switch label[for="px-cmp-old"],
.page-products #px-cmp-new:checked ~ .px-compare__switch label[for="px-cmp-new"] {
  background: var(--cyan-08);
  color: var(--cyan);
}

.page-products .px-compare__body {
  display: grid;
  gap: var(--px-gap);
}

.page-products .px-col {
  padding: 1.25rem 1.25rem 1.5rem;
  border: 1px solid var(--px-line);
  background: var(--graphite);
}

.page-products .px-col--old {
  background: rgba(107, 124, 140, .08);
  border-color: var(--old-35);
}

.page-products .px-col--new {
  background: linear-gradient(180deg, var(--cyan-06), rgba(27, 42, 56, .9));
  border-color: var(--cyan-18);
}

.page-products .px-col__tag {
  margin: 0;
}

.page-products .px-col h3 {
  margin: .8rem 0 .9rem;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.35rem;
}

.page-products .px-col__list {
  margin: 0 0 1rem;
  padding: 0;
  list-style: none;
  counter-reset: px-level;
}

.page-products .px-col__list li {
  counter-increment: px-level;
  display: grid;
  grid-template-columns: 2.6rem 1fr;
  gap: .6rem;
  padding: .55rem 0;
  border-bottom: 1px dashed rgba(34, 57, 77, .9);
  font-size: .92rem;
}

.page-products .px-col__list li::before {
  content: "L" counter(px-level);
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .1em;
  color: var(--old);
}

.page-products .px-col--new .px-col__list li::before {
  color: var(--cyan);
}

.page-products .px-col__note {
  margin: 0;
  font-size: .88rem;
  color: rgba(242, 246, 247, .72);
}

.page-products #px-cmp-new:checked ~ .px-compare__body .px-col--old {
  order: 2;
}

.page-products #px-cmp-new:checked ~ .px-compare__body .px-col--new {
  order: 1;
}

/* ---------- 记录查询 ---------- */

.page-products .px-record__grid {
  display: grid;
  gap: var(--px-gap);
}

.page-products .px-record__steps {
  display: grid;
  gap: 1rem;
}

.page-products .px-step {
  display: grid;
  grid-template-columns: 3.25rem 1fr;
  gap: .25rem .9rem;
  padding: 1.1rem 1.1rem 1.15rem;
  border: 1px solid var(--px-line);
  border-left: 2px solid var(--cyan-18);
  background: var(--graphite);
}

.page-products .px-step__no {
  grid-row: 1 / 3;
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  letter-spacing: -.02em;
}

.page-products .px-step h3 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.15rem;
}

.page-products .px-step__line {
  margin: 0;
  font-size: .92rem;
  color: rgba(242, 246, 247, .8);
}

.page-products .px-more {
  grid-column: 1 / -1;
  margin-top: .5rem;
  border-top: 1px solid var(--px-line);
}

.page-products .px-more summary {
  padding: .55rem 0 0;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .08em;
  color: var(--cyan-mist);
  cursor: pointer;
  list-style: none;
}

.page-products .px-more summary::-webkit-details-marker {
  display: none;
}

.page-products .px-more summary::before {
  content: "[ + ] ";
  color: var(--coral);
}

.page-products .px-more[open] summary::before {
  content: "[ − ] ";
}

.page-products .px-more p {
  margin: .5rem 0 .2rem;
  font-size: .88rem;
  color: rgba(242, 246, 247, .74);
}

/* ---------- 平板版本切换 ---------- */

.page-products .px-tablet__grid {
  display: grid;
  gap: var(--px-gap);
}

.page-products .px-tablet__copy p {
  margin: 0 0 1rem;
  color: rgba(242, 246, 247, .84);
}

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

.page-products .px-tablet__steps li {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: .6rem;
  padding: .75rem 0;
  border-bottom: 1px solid var(--px-line);
  font-size: .95rem;
}

.page-products .px-tablet__steps .mono {
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-products .px-tablet__hint {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .84rem;
  color: var(--amber);
}

/* ---------- 设备差异表 ---------- */

.page-products .px-device__scroll,
.page-products .px-fast__scroll {
  overflow-x: auto;
  border: 1px solid var(--px-line);
}

.page-products .px-device__table,
.page-products .px-fast__table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: .92rem;
}

.page-products .px-device__caption {
  padding: .8rem 1rem;
  text-align: left;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .08em;
  color: var(--old);
  border-bottom: 1px solid var(--px-line);
}

.page-products .px-device__table th,
.page-products .px-device__table td,
.page-products .px-fast__table th,
.page-products .px-fast__table td {
  padding: .85rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--px-line);
  vertical-align: top;
}

.page-products .px-device__table thead th,
.page-products .px-fast__table thead th {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--old);
  background: rgba(18, 41, 61, .6);
}

.page-products .px-device__table tbody th,
.page-products .px-fast__table tbody th {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1rem;
  color: var(--cyan-mist);
  border-left: 2px solid var(--cyan-18);
}

.page-products .px-device__table tbody tr:last-child th,
.page-products .px-device__table tbody tr:last-child td,
.page-products .px-fast__table tbody tr:last-child th,
.page-products .px-fast__table tbody tr:last-child td {
  border-bottom: 0;
}

.page-products .px-device__table tbody tr:hover td,
.page-products .px-fast__table tbody tr:hover td {
  background: var(--cyan-06);
}

.page-products .px-device__note {
  margin: 1.25rem 0 0;
  max-width: 68ch;
  font-size: .92rem;
  color: rgba(242, 246, 247, .74);
}

/* ---------- 三行速查 ---------- */

.page-products .px-fast__table .mono {
  font-size: .82rem;
  color: var(--cyan);
}

.page-products .px-fast__foot {
  display: grid;
  gap: 1.25rem;
  margin-top: var(--px-gap);
  padding-top: 1.25rem;
  border-top: 1px solid var(--px-line);
}

.page-products .px-fast__foot p {
  margin: 0;
  max-width: 66ch;
  font-size: .92rem;
  color: rgba(242, 246, 247, .76);
}

.page-products .px-fast__links {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

/* ---------- 回到主路径 ---------- */

.page-products .px-return {
  padding: 2.5rem 0 1rem;
}

/* ---------- 断点 ---------- */

@media (min-width: 720px) {
  .page-products .px-compare__body {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-products .px-fast__foot {
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
    align-items: end;
  }

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

@media (min-width: 960px) {
  .page-products .px-hero {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, .85fr);
    align-items: end;
    gap: clamp(2rem, 5vw, 4rem);
  }

  .page-products .px-path__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: clamp(1.5rem, 4vw, 3rem);
    align-items: start;
  }

  .page-products .px-record__grid {
    grid-template-columns: minmax(0, .8fr) minmax(0, 1.4fr);
    gap: clamp(1.5rem, 4vw, 3rem);
    align-items: start;
  }

  .page-products .px-tablet__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: clamp(1.5rem, 4vw, 3rem);
    align-items: start;
  }

  .page-products .px-record__steps {
    grid-template-columns: 1fr;
  }

  .page-products .px-step:nth-child(2) {
    margin-left: 2.25rem;
  }

  .page-products .px-step:nth-child(3) {
    margin-left: 4.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .px-svg__line {
    stroke-dashoffset: 0;
    animation: none !important;
  }

  .page-products .px-svg__node {
    transition: none;
  }
}