.page-products {
  --pp-shadow: 0 18px 44px rgba(3, 10, 18, .45);
}

/* ---------- 首屏 ---------- */
.page-products .pp-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(20px, 3vw, 36px) clamp(34px, 5vw, 68px);
  border-bottom: 1px solid var(--line);
}

.page-products .pp-hero::after {
  content: "";
  position: absolute;
  inset: auto -20% -45% 30%;
  height: 70%;
  background: radial-gradient(circle at 35% 40%, rgba(45, 242, 208, .14), transparent 62%);
  pointer-events: none;
}

.page-products .pp-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 52px);
  align-items: end;
}

.page-products .pp-hero__title {
  margin: .32em 0 .38em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(38px, 7.6vw, 82px);
  line-height: 1;
  letter-spacing: -.01em;
}

.page-products .pp-hero__title em {
  font-style: normal;
  color: var(--cyan);
}

.page-products .pp-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(16px, 3vw, 38px);
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
}

.page-products .pp-hero__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(19px, 2.4vw, 25px);
  color: var(--cyan);
  line-height: 1.2;
}

.page-products .pp-hero__unit {
  display: block;
  margin-top: 4px;
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--muted);
}

.page-products .pp-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-products .pp-hero__media {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

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

/* ---------- 主布局与目录 ---------- */
.page-products .pp-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 56px);
  padding-block: clamp(30px, 4vw, 56px);
}

.page-products .pp-index {
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-products .pp-index__eyebrow {
  margin: 0 0 8px;
}

.page-products .pp-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-products .pp-index__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  white-space: nowrap;
  padding: 7px 12px;
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: color .18s var(--ease), border-color .18s var(--ease), background-color .18s var(--ease);
}

.page-products .pp-index__list a span {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-700);
}

.page-products .pp-index__list a:hover,
.page-products .pp-index__list a:focus-visible {
  color: var(--paper);
  border-color: var(--cyan);
  background: rgba(45, 242, 208, .08);
}

.page-products .pp-index__list a:hover span,
.page-products .pp-index__list a:focus-visible span {
  color: var(--cyan);
}

.page-products .pp-index__note {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 章节通用 ---------- */
.page-products .pp-sec {
  margin-top: clamp(44px, 6vw, 82px);
}

.page-products .pp-body > .pp-sec:first-child {
  margin-top: 0;
}

.page-products .pp-lede {
  max-width: 62ch;
  margin-top: 14px;
}

.page-products .pp-sec--panel {
  padding: clamp(20px, 3.6vw, 42px);
  background: var(--ink-800);
  border: 1px solid var(--line);
}

.page-products .pp-inline-note {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 栏目地图 ---------- */
.page-products .pp-map {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-products .pp-map__item {
  padding: 18px 16px 20px;
  border-left: 2px solid var(--ink-700);
  transition: border-color .2s var(--ease), transform .2s var(--ease), box-shadow .2s var(--ease);
}

.page-products .pp-map__item:hover {
  border-left-color: var(--cyan);
  box-shadow: var(--pp-shadow);
}

.page-products .pp-map__count {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-products .pp-map__name {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-products .pp-map__desc {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--muted);
}

.page-products .pp-map__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .pp-map__tags li {
  padding: 2px 7px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

/* ---------- 服务路径技能树 ---------- */
.page-products .pp-path {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
  margin-top: 26px;
  align-items: start;
}

.page-products .pp-tree {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .pp-tree::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 18px;
  bottom: 18px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), rgba(45, 242, 208, .1));
}

.page-products .pp-tree__node {
  position: relative;
}

.page-products .pp-tree__node details {
  border-bottom: 1px solid var(--line);
}

.page-products .pp-tree__node summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-products .pp-tree__num {
  position: relative;
  z-index: 1;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 37px;
  height: 37px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
  transition: background-color .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}

.page-products .pp-tree__node details[open] .pp-tree__num {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink-900);
}

.page-products .pp-tree__node summary:hover .pp-tree__num {
  border-color: var(--cyan);
}

.page-products .pp-tree__node summary:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}

.page-products .pp-tree__name {
  font-family: var(--font-display);
  font-size: 19px;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-products .pp-tree__body {
  padding: 0 0 16px 51px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-products .pp-tree__body strong {
  color: var(--paper);
  font-weight: 600;
}

.page-products .pp-path__media {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

/* ---------- 适配清单 ---------- */
.page-products .pp-band {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 26px;
}

.page-products .pp-group {
  padding: 16px 14px;
  background: var(--ink-900);
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
}

.page-products .pp-group__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}

.page-products .pp-group__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: 17px;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-products .pp-group__num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--cyan);
}

.page-products .pp-check {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 9px;
  padding: 7px 0;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--muted);
  cursor: pointer;
  border-bottom: 1px dashed rgba(39, 68, 85, .8);
}

.page-products .pp-check:last-child {
  border-bottom: 0;
}

.page-products .pp-check input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.page-products .pp-check__box {
  position: relative;
  flex: 0 0 auto;
  width: 15px;
  height: 15px;
  margin-top: 2px;
  border: 1px solid var(--line);
  border-radius: 2px;
  transition: background-color .16s var(--ease), border-color .16s var(--ease);
}

.page-products .pp-check input:checked + .pp-check__box {
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-products .pp-check input:checked + .pp-check__box::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 1px;
  width: 5px;
  height: 9px;
  border-right: 2px solid var(--ink-900);
  border-bottom: 2px solid var(--ink-900);
  transform: rotate(40deg);
}

.page-products .pp-check input:focus-visible + .pp-check__box {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.page-products .pp-check input:checked ~ .pp-check__label {
  color: var(--paper);
}

.page-products .pp-check__media {
  margin: 26px 0 0;
  border: 1px solid var(--line);
  background: var(--ink-900);
}

/* ---------- 版本对照 ---------- */
.page-products .pp-vaxis {
  margin-top: 26px;
  border: 1px solid var(--line);
  background: var(--line);
  display: grid;
  gap: 1px;
}

.page-products .pp-vrow {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
}

.page-products .pp-vrow__label {
  display: flex;
  align-items: center;
  padding: 11px 14px;
  background: var(--ink-800);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--muted);
}

.page-products .pp-vrow__cell {
  padding: 12px 14px;
  font-size: 14px;
  line-height: 1.68;
}

.page-products .pp-vrow__cell--old {
  background: rgba(185, 174, 163, .1);
  color: #D9D0C7;
}

.page-products .pp-vrow__cell--new {
  background: rgba(125, 249, 232, .09);
  color: #CEFBF3;
}

.page-products .pp-vrow--head .pp-vrow__cell {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
}

/* 版本摘要切换 */
.page-products .pp-toggle {
  position: relative;
  margin-top: 26px;
}

.page-products .pp-toggle__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.page-products .pp-toggle__labels {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.page-products .pp-toggle__labels label {
  padding: 7px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
  transition: color .18s var(--ease), background-color .18s var(--ease), border-color .18s var(--ease);
}

.page-products .pp-toggle__labels label:hover {
  color: var(--paper);
  border-color: var(--muted);
}

.page-products #pp-vold:checked ~ .pp-toggle__labels label[for="pp-vold"] {
  background: var(--old);
  border-color: var(--old);
  color: var(--ink-900);
}

.page-products #pp-vnew:checked ~ .pp-toggle__labels label[for="pp-vnew"] {
  background: var(--new);
  border-color: var(--new);
  color: var(--ink-900);
}

.page-products .pp-toggle__input:focus-visible ~ .pp-toggle__labels label[for="pp-vold"],
.page-products .pp-toggle__input:focus-visible ~ .pp-toggle__labels label[for="pp-vnew"] {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.page-products .pp-toggle__panel {
  display: none;
  padding: 2px 0 2px 16px;
  border-left: 2px solid var(--line);
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-products .pp-toggle__panel p {
  margin: 0;
}

.page-products #pp-vold:checked ~ .pp-toggle__panels .pp-toggle__panel--old {
  display: block;
  border-left-color: var(--old);
}

.page-products #pp-vnew:checked ~ .pp-toggle__panels .pp-toggle__panel--new {
  display: block;
  border-left-color: var(--new);
}

.page-products .pp-vnote {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-products .copy-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 3px 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--cyan);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color .18s var(--ease), background-color .18s var(--ease);
}

.page-products .copy-chip:hover,
.page-products .copy-chip:focus-visible {
  border-color: var(--cyan);
  background: rgba(45, 242, 208, .08);
  outline: none;
}

.page-products .copy-chip:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.page-products .copy-chip__hint {
  font-size: 11px;
  color: var(--muted);
}

.page-products .copy-chip[data-copied="true"] .copy-chip__hint {
  color: var(--cyan);
}

.page-products .pp-version__media {
  margin: 26px 0 0;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

/* ---------- 交付物 ---------- */
.page-products .pp-deliver {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 26px;
}

.page-products .pp-deliver__item {
  padding: 18px 16px 20px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-products .pp-deliver__item:hover {
  border-color: var(--cyan);
  background: rgba(22, 50, 68, .35);
}

.page-products .pp-deliver__name {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 18.5px;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-products .pp-deliver__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 场景 ---------- */
.page-products .pp-scenes {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 26px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-products .pp-scene {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  padding: 20px 18px;
  background: var(--ink-900);
  transition: background-color .2s var(--ease);
}

.page-products .pp-scene:hover {
  background: var(--ink-800);
}

.page-products .pp-scene__num {
  margin: 0;
  font-family: var(--font-display);
  font-size: 34px;
  line-height: 1;
  color: var(--signal);
}

.page-products .pp-scene__name {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 19px;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-products .pp-scene__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 咨询 CTA ---------- */
.page-products .pp-cta {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 34px);
  margin-top: clamp(28px, 4vw, 44px);
  padding: clamp(20px, 3vw, 34px);
  align-items: center;
}

.page-products .pp-cta__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(21px, 2.6vw, 28px);
  line-height: 1.22;
  letter-spacing: .01em;
  color: var(--paper);
}

.page-products .pp-cta__text p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

.page-products .pp-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.page-products .pp-cta__media {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-products .pp-oldlink {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-products .pp-oldlink p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-products .pp-map {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (min-width: 900px) {
  .page-products .pp-hero__grid {
    grid-template-columns: minmax(0, 1.14fr) minmax(0, .86fr);
  }

  .page-products .pp-path {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, .68fr);
  }

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

  .page-products .pp-cta {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  }

  .page-products .pp-toggle__panel {
    max-width: 70ch;
  }
}

@media (min-width: 960px) {
  .page-products .pp-layout {
    grid-template-columns: 216px minmax(0, 1fr);
    align-items: start;
  }

  .page-products .pp-index {
    position: sticky;
    top: 132px;
    align-self: start;
    padding: 0 0 0 18px;
    border-bottom: 0;
    border-left: 1px solid var(--line);
  }

  .page-products .pp-index__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding: 0;
    margin: 12px 0 20px;
  }

  .page-products .pp-index__list a {
    padding: 9px 0;
    border: 0;
    border-bottom: 1px solid transparent;
    border-radius: 0;
    background: transparent;
  }

  .page-products .pp-index__list a:hover,
  .page-products .pp-index__list a:focus-visible {
    background: transparent;
    border-bottom-color: var(--cyan);
  }

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

  .page-products .pp-map__item:nth-child(2) {
    transform: translateY(20px);
  }

  .page-products .pp-map__item:nth-child(5) {
    transform: translateY(-14px);
  }

  .page-products .pp-map__item:nth-child(2):hover,
  .page-products .pp-map__item:nth-child(5):hover {
    transform: translateY(6px);
  }

  .page-products .pp-band {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .pp-vrow {
    grid-template-columns: 132px minmax(0, 1fr) minmax(0, 1fr);
  }

  .page-products .pp-deliver {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-products .pp-deliver__item:nth-child(even) {
    margin-top: 26px;
  }

  .page-products .pp-deliver__item:last-child {
    grid-column: 1 / -1;
    max-width: 62ch;
  }
}

@media (min-width: 1100px) {
  .page-products .pp-hero__title {
    letter-spacing: -.015em;
  }

  .page-products .pp-vrow__label {
    font-size: 12px;
  }
}
<<<END>>>