.page-products {
  background: var(--ink-900);
  color: var(--body-text);
  padding-bottom: 72px;
}

.page-products .crumbs {
  padding-top: 22px;
}

/* ---------- 首屏 ---------- */
.page-products .pp-hero {
  display: grid;
  gap: 28px;
  padding: 22px 0 48px;
}

.page-products .pp-hero__copy h1 {
  margin: 10px 0 0;
  font-family: var(--font-cn);
  font-weight: 900;
  font-size: clamp(1.7rem, 7.2vw, 3.2rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-products .pp-hero__lede {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.8;
}

.page-products .pp-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.page-products .pp-hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .pp-hero__chips li {
  font-family: var(--font-label);
  font-size: 11.5px;
  letter-spacing: 0.09em;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--neon-mist);
  font-variant-numeric: tabular-nums;
}

.page-products .pp-hero__figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--ink-800);
}

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

.page-products .pp-hero__figure figcaption,
.page-products .pp-device__figure figcaption,
.page-products .pp-login__figure figcaption,
.page-products .pp-archive__figure figcaption,
.page-products .pp-scenes__figure figcaption {
  padding: 11px 14px;
  font-family: var(--font-label);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  line-height: 1.6;
  color: var(--muted);
  border-top: 1px solid var(--line-soft);
}

/* ---------- 通用区块 ---------- */
.page-products .pp-sec {
  padding: 46px 0;
  border-top: 1px solid var(--line-soft);
}

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

.page-products .pp-section-head h2 {
  margin: 0;
  font-family: var(--font-cn);
  font-weight: 800;
  font-size: clamp(1.22rem, 4.4vw, 1.85rem);
  line-height: 1.28;
  color: var(--white);
}

.page-products .pp-section-head p {
  margin: 10px 0 0;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.78;
}

/* ---------- 路径节点 ---------- */
.page-products .pp-tree__grid {
  display: grid;
  gap: 14px;
}

.page-products .pp-node {
  position: relative;
  display: block;
  padding: 18px 18px 18px 52px;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  color: inherit;
  text-decoration: none;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-products .pp-node::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 50%;
  width: 9px;
  height: 9px;
  margin-top: -4.5px;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 0 4px rgba(92, 255, 200, 0.14);
}

.page-products .pp-node--amber::before {
  background: var(--amber);
  box-shadow: 0 0 0 4px rgba(255, 159, 67, 0.16);
}

.page-products .pp-node:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 25px;
  top: calc(50% + 12px);
  bottom: -16px;
  width: 1px;
  background: linear-gradient(180deg, var(--line), transparent);
}

.page-products .pp-node:hover,
.page-products .pp-node:focus-visible {
  border-color: var(--neon);
  background: var(--ink-700);
  outline: none;
  transform: translateX(2px);
}

.page-products .pp-node__idx {
  display: block;
  font-family: var(--font-label);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-products .pp-node__title {
  display: block;
  margin-top: 6px;
  font-family: var(--font-cn);
  font-weight: 800;
  font-size: 17px;
  color: var(--white);
}

.page-products .pp-node__desc {
  display: block;
  margin-top: 6px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--body-text);
}

/* ---------- 手机版面板 ---------- */
.page-products .pp-device__layout {
  display: grid;
  gap: 26px;
}

.page-products .pp-device__figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 22px;
  overflow: hidden;
  background: var(--ink-800);
  box-shadow: 0 0 0 6px var(--ink-900), 0 0 0 7px var(--line-soft), 0 26px 60px -34px rgba(92, 255, 200, 0.4);
}

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

.page-products .pp-check {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-products .pp-check li {
  position: relative;
  padding-left: 24px;
  font-size: 14.5px;
  line-height: 1.75;
}

.page-products .pp-check li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 0.62em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 0 3px rgba(92, 255, 200, 0.15);
}

.page-products .pp-spec {
  margin-top: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  overflow: hidden;
  background: var(--ink-800);
}

.page-products .pp-spec__row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 16px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line-soft);
}

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

.page-products .pp-spec__k {
  font-family: var(--font-label);
  font-size: 11.5px;
  letter-spacing: 0.09em;
  color: var(--muted);
}

.page-products .pp-spec__v {
  font-size: 13.5px;
  color: var(--neon-mist);
  font-variant-numeric: tabular-nums;
}

/* ---------- 电脑端登录 ---------- */
.page-products .pp-login__layout {
  display: grid;
  gap: 24px;
}

.page-products .pp-login__figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--ink-800);
}

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

.page-products .pp-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-products .pp-step {
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--ink-800);
  overflow: hidden;
  transition: border-color 0.2s var(--ease);
}

.page-products .pp-step[open] {
  border-color: var(--line);
  background: var(--ink-700);
}

.page-products .pp-step summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-products .pp-step__n {
  font-family: var(--font-display);
  font-size: 22px;
  line-height: 1;
  color: var(--neon);
  font-variant-numeric: tabular-nums;
  flex: none;
}

.page-products .pp-step__t {
  font-family: var(--font-cn);
  font-weight: 800;
  font-size: 15.5px;
  color: var(--white);
}

.page-products .pp-step__marker {
  position: relative;
  margin-left: auto;
  width: 14px;
  height: 14px;
  flex: none;
}

.page-products .pp-step__marker::before,
.page-products .pp-step__marker::after {
  content: "";
  position: absolute;
  background: var(--neon);
  border-radius: 2px;
}

.page-products .pp-step__marker::before {
  left: 0;
  right: 0;
  top: 6px;
  height: 2px;
}

.page-products .pp-step__marker::after {
  top: 0;
  bottom: 0;
  left: 6px;
  width: 2px;
  transition: transform 0.2s var(--ease);
}

.page-products .pp-step[open] .pp-step__marker::after {
  transform: scaleY(0);
}

.page-products .pp-step__body {
  padding: 0 16px 18px 16px;
  font-size: 14px;
  line-height: 1.78;
}

.page-products .pp-login .notice {
  margin-top: 20px;
}

/* ---------- 资料区 ---------- */
.page-products .pp-archive__figure {
  margin: 0 0 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--ink-800);
}

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

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

.page-products .pp-archive__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-products .pp-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-products .pp-chip {
  display: inline-block;
  padding: 8px 14px;
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--neon-mist);
  border: 1px solid var(--line);
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.18s var(--ease), color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-products .pp-chip:hover {
  border-color: var(--neon);
}

.page-products #f-all:checked ~ .pp-chips label[for="f-all"],
.page-products #f-football:checked ~ .pp-chips label[for="f-football"],
.page-products #f-basket:checked ~ .pp-chips label[for="f-basket"],
.page-products #f-cup:checked ~ .pp-chips label[for="f-cup"] {
  background: var(--neon);
  border-color: var(--neon);
  color: var(--ink-900);
  font-weight: 600;
}

.page-products .pp-files {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.page-products .pp-file {
  position: relative;
  padding: 16px 16px 18px;
  background: var(--paper);
  color: var(--ink-on-warm);
  border-radius: var(--radius-s);
  border: 1px solid rgba(6, 27, 20, 0.35);
  box-shadow: 4px 4px 0 rgba(11, 43, 32, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.page-products .pp-file__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-products .pp-file__league {
  font-family: var(--font-label);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: #6d5a3a;
}

.page-products .pp-file__type {
  flex: none;
  padding: 3px 7px;
  border-radius: 3px;
  font-family: var(--font-label);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  background: var(--ink-900);
  color: var(--neon);
}

.page-products .pp-file__title {
  margin: 10px 0 0;
  font-family: var(--font-cn);
  font-weight: 800;
  font-size: 16px;
  line-height: 1.4;
  color: #14251c;
}

.page-products .pp-file__meta {
  margin: 8px 0 0;
  font-size: 12.5px;
  line-height: 1.68;
  color: #4a5b51;
}

.page-products .pp-file__name {
  margin: 12px 0 0;
  padding: 7px 9px;
  font-family: var(--font-label);
  font-size: 11.5px;
  letter-spacing: 0.03em;
  color: #14251c;
  background: rgba(6, 27, 20, 0.08);
  border-left: 3px solid var(--amber);
  border-radius: 2px;
  overflow-wrap: anywhere;
}

.page-products #f-football:checked ~ .pp-files .pp-file {
  display: none;
}

.page-products #f-football:checked ~ .pp-files .pp-file--football {
  display: block;
}

.page-products #f-basket:checked ~ .pp-files .pp-file {
  display: none;
}

.page-products #f-basket:checked ~ .pp-files .pp-file--basket {
  display: block;
}

.page-products #f-cup:checked ~ .pp-files .pp-file {
  display: none;
}

.page-products #f-cup:checked ~ .pp-files .pp-file--cup {
  display: block;
}

.page-products .pp-archive__note {
  margin: 22px 0 0;
  padding: 14px 16px;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--body-text);
  border-left: 3px solid var(--line);
  background: var(--ink-800);
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
}

/* ---------- 场景 ---------- */
.page-products .pp-scenes__layout {
  display: grid;
  gap: 20px;
}

.page-products .pp-scenes {
  display: grid;
  gap: 12px;
}

.page-products .pp-scene {
  padding: 18px 18px 20px;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-left: 3px solid var(--neon);
  border-radius: var(--radius-m);
}

.page-products .pp-scene--amber {
  border-left-color: var(--amber);
}

.page-products .pp-scene h3 {
  margin: 0;
  font-family: var(--font-cn);
  font-weight: 800;
  font-size: 15.5px;
  color: var(--white);
}

.page-products .pp-scene p {
  margin: 9px 0 0;
  font-size: 14px;
  line-height: 1.75;
}

.page-products .pp-scenes__figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--ink-800);
}

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

/* ---------- 版本演进 ---------- */
.page-products .pp-timeline {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .pp-tl {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px dashed var(--line-soft);
}

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

.page-products .pp-tl__year {
  font-family: var(--font-display);
  font-size: 24px;
  line-height: 1;
  color: var(--neon);
  font-variant-numeric: tabular-nums;
}

.page-products .pp-tl h3 {
  margin: 0;
  font-family: var(--font-cn);
  font-weight: 800;
  font-size: 15px;
  color: var(--white);
}

.page-products .pp-tl p {
  margin: 7px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
}

/* ---------- 下一步 ---------- */
.page-products .pp-next__grid {
  display: grid;
  gap: 12px;
}

.page-products .pp-next__card {
  display: block;
  padding: 20px;
  text-decoration: none;
  color: inherit;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-products .pp-next__card--amber {
  background: var(--ink-700);
}

.page-products .pp-next__card:hover,
.page-products .pp-next__card:focus-visible {
  border-color: var(--neon);
  background: var(--ink-700);
  outline: none;
  transform: translateY(-2px);
}

.page-products .pp-next__kicker {
  display: block;
  font-family: var(--font-label);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-products .pp-next__title {
  display: block;
  margin-top: 8px;
  font-family: var(--font-cn);
  font-weight: 800;
  font-size: 16px;
  line-height: 1.45;
  color: var(--white);
}

.page-products .pp-next__desc {
  display: block;
  margin-top: 8px;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--body-text);
}

.page-products .pp-next__more {
  margin: 22px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-products .pp-next__more a {
  color: var(--neon-mist);
  text-underline-offset: 3px;
}

.page-products .pp-next__more a:hover {
  color: var(--neon);
}

/* ---------- 桌面断点 ---------- */
@media (min-width: 760px) {
  .page-products .pp-hero {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 1fr);
    gap: 40px;
    align-items: center;
    padding: 34px 0 60px;
  }

  .page-products .pp-sec {
    padding: 62px 0;
  }

  .page-products .pp-section-head {
    gap: 22px;
    margin-bottom: 32px;
  }

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

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

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

  .page-products .pp-step__body {
    padding: 0 18px 20px 66px;
  }
}

@media (min-width: 980px) {
  .page-products .pp-device__layout {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    gap: 44px;
    align-items: start;
  }

  .page-products .pp-device__figure {
    position: sticky;
    top: calc(var(--strip-h) + 24px);
  }

  .page-products .pp-login__layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 40px;
    align-items: start;
  }

  .page-products .pp-scenes__layout {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 32px;
    align-items: start;
  }

  .page-products .pp-tl {
    grid-template-columns: 84px minmax(0, 1fr);
    gap: 22px;
  }

  .page-products .pp-tl__year {
    font-size: 30px;
  }

  .page-products .pp-node {
    padding: 20px 22px 20px 56px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pp-node,
  .page-products .pp-next__card,
  .page-products .pp-step__marker::after {
    transition: none;
  }

  .page-products .pp-node:hover,
  .page-products .pp-next__card:hover {
    transform: none;
  }
}
<<<END>>>