.page-products {
  --pf-card: clamp(252px, 76vw, 344px);
  background: var(--paper);
  color: var(--ink);
  overflow-x: clip;
}

.page-products .wrap {
  position: relative;
}

.page-products .pf-crumb-sep {
  color: var(--turf);
  margin: 0 6px;
}

.page-products .pf-inline-link {
  color: inherit;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 2px;
  text-decoration-color: var(--ember);
}

.page-products .pf-inline-link:hover {
  text-decoration-color: var(--ember-deep);
}

.page-products .pf-inline-link--dark {
  text-decoration-color: var(--neon);
}

/* ---------- 首屏 ---------- */
.page-products .pf-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(22px, 4vw, 44px) 0 clamp(40px, 6vw, 72px);
}

.page-products .pf-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: min(64%, 780px);
  height: min(74%, 540px);
  background: linear-gradient(135deg, rgba(242, 107, 31, 0.20), rgba(59, 224, 196, 0.14) 60%, rgba(244, 241, 232, 0) 100%);
  clip-path: polygon(26% 0, 100% 0, 100% 100%, 0 56%);
  z-index: -1;
  pointer-events: none;
}

.page-products .pf-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 6.4vw, 58px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 14px 0 16px;
  max-width: 18ch;
}

.page-products .pf-hero__lede {
  max-width: 36em;
  color: var(--ink-soft);
  line-height: 1.8;
}

.page-products .pf-hero__tags {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-products .pf-hero__tags li {
  font-size: 13px;
  line-height: 1.5;
  padding: 7px 13px;
  border: 1px solid var(--paper-grey);
  border-radius: 2px;
  color: var(--ink-soft);
  background: rgba(255, 255, 255, 0.4);
}

.page-products .pf-hero__tags .num {
  color: var(--ember-deep);
  font-weight: 700;
}

/* ---------- 横向卡带 ---------- */
.page-products .pf-rail-wrap {
  margin-top: clamp(26px, 4vw, 44px);
}

.page-products .pf-rail {
  display: flex;
  gap: var(--gap);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 6px 0 22px;
  scrollbar-width: thin;
  scrollbar-color: var(--turf-light) transparent;
}

.page-products .pf-rail::-webkit-scrollbar {
  height: 4px;
}

.page-products .pf-rail::-webkit-scrollbar-thumb {
  background: var(--turf-light);
  border-radius: 2px;
}

.page-products .pf-rail:focus-visible {
  outline: 2px solid var(--ember);
  outline-offset: 4px;
}

.page-products .pf-card {
  flex: 0 0 var(--pf-card);
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  background: var(--paper);
  border: 1px solid var(--paper-grey);
  border-radius: 2px;
  overflow: hidden;
  box-shadow: 0 20px 34px -30px rgba(7, 17, 14, 0.7);
}

.page-products .pf-card__media {
  overflow: hidden;
  background: var(--pitch);
  border-bottom: 1px solid var(--paper-grey);
}

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

.page-products .pf-card__body {
  padding: 18px 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-products .pf-card__title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 0;
}

.page-products .pf-card__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--ink-soft);
}

.page-products .pf-card__foot {
  margin-top: 4px !important;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px !important;
  color: var(--turf) !important;
}

/* ---------- 通用章节头 ---------- */
.page-products .pf-head {
  max-width: 720px;
  margin-bottom: clamp(24px, 4vw, 38px);
}

.page-products .pf-head h2 {
  font-family: var(--font-display);
  font-size: clamp(26px, 4.2vw, 40px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 10px 0 12px;
}

.page-products .pf-head p {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.78;
  max-width: 40em;
}

/* ---------- 能力清单 ---------- */
.page-products .pf-caps {
  padding: clamp(40px, 6vw, 84px) 0;
}

.page-products .pf-cap-list {
  border-top: 1px solid var(--paper-grey);
}

.page-products .pf-cap {
  border-bottom: 1px solid var(--paper-grey);
}

.page-products .pf-cap[open] {
  background: linear-gradient(90deg, rgba(59, 224, 196, 0.10), rgba(59, 224, 196, 0) 72%);
}

.page-products .pf-cap > summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 16px;
  padding: 20px 4px;
  cursor: pointer;
  list-style: none;
}

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

.page-products .pf-cap > summary::after {
  content: "+";
  margin-left: auto;
  padding-left: 12px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 17px;
  color: var(--ember);
  line-height: 1;
}

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

.page-products .pf-cap__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--turf);
}

.page-products .pf-cap__name {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-products .pf-cap__meta {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--ink-soft);
  background: rgba(217, 213, 199, 0.55);
  padding: 3px 9px;
  border-radius: 2px;
}

.page-products .pf-cap__body {
  margin: 0;
  padding: 0 4px 22px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- 置顶与收藏 ---------- */
.page-products .pf-pin {
  padding: clamp(40px, 6vw, 84px) 0;
  background: linear-gradient(180deg, rgba(217, 213, 199, 0.34), rgba(244, 241, 232, 0));
}

.page-products .pf-pin__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-products .pf-pin__figure {
  margin: 0;
}

.page-products .pf-shot-media {
  border: 1px solid var(--paper-grey);
  overflow: hidden;
  background: var(--pitch);
}

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

.page-products .pf-pin__figure figcaption {
  margin-top: 10px;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--turf);
}

.page-products .pf-pin__text h2 {
  font-family: var(--font-display);
  font-size: clamp(25px, 4vw, 36px);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 10px 0 20px;
}

.page-products .pf-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-products .pf-steps li {
  display: grid;
  grid-template-columns: 2.2rem 1fr;
  gap: 12px;
  border-top: 1px solid var(--paper-grey);
  padding-top: 16px;
}

.page-products .pf-steps__no {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--ember);
  padding-top: 3px;
}

.page-products .pf-steps h3 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-products .pf-steps p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-products .pf-pin__note {
  margin: 22px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--turf);
  border-left: 2px solid var(--neon);
  padding-left: 12px;
}

/* ---------- 跨周末 ---------- */
.page-products .pf-weekend {
  padding: clamp(40px, 6vw, 84px) 0;
}

.page-products .pf-weekend__banner {
  border: 1px solid var(--paper-grey);
  overflow: hidden;
  background: var(--pitch);
}

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

.page-products .pf-timeline {
  display: block;
  width: 100%;
  height: auto;
  margin-top: 14px;
}

.page-products .pf-timeline__label {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  fill: var(--ink);
}

.page-products .pf-timeline__note {
  font-family: var(--font-mono);
  font-size: 14px;
  fill: var(--turf);
}

.page-products .pf-scenes {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-products .pf-scene {
  border: 1px solid var(--paper-grey);
  border-top: 3px solid var(--ember);
  background: rgba(255, 255, 255, 0.52);
  padding: 20px 18px 22px;
}

.page-products .pf-scene--neon {
  border-top-color: var(--neon);
}

.page-products .pf-scene--brick {
  border-top-color: var(--brick);
}

.page-products .pf-scene h3 {
  margin: 8px 0 8px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-products .pf-scene p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-soft);
}

/* ---------- 案例对照（暗场） ---------- */
.page-products .pf-cases {
  position: relative;
  padding: clamp(66px, 9vw, 112px) 0 clamp(48px, 7vw, 92px);
  background:
    radial-gradient(92% 72% at 88% 4%, rgba(242, 107, 31, 0.26), rgba(242, 107, 31, 0) 62%),
    linear-gradient(170deg, var(--pitch) 0%, var(--midnight) 100%);
  color: var(--paper);
  overflow: hidden;
}

.page-products .pf-cases::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 46px;
  background: var(--paper);
  clip-path: polygon(0 0, 100% 0, 0 100%);
  pointer-events: none;
}

.page-products .pf-cases__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px 32px;
  margin-bottom: clamp(24px, 4vw, 38px);
}

.page-products .pf-cases__head > div {
  max-width: 640px;
}

.page-products .pf-cases__eyebrow {
  color: var(--neon);
}

.page-products .pf-cases h2 {
  font-family: var(--font-display);
  font-size: clamp(26px, 4.2vw, 40px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 10px 0 12px;
  color: var(--paper);
}

.page-products .pf-cases__head p {
  margin: 0;
  color: rgba(244, 241, 232, 0.76);
  line-height: 1.78;
  max-width: 42em;
}

.page-products .pf-switch {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border: 1px solid rgba(244, 241, 232, 0.28);
  border-radius: 999px;
  background: rgba(244, 241, 232, 0.07);
  flex: 0 0 auto;
}

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

.page-products .pf-switch label {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  padding: 6px 15px;
  border-radius: 999px;
  cursor: pointer;
  color: var(--turf-light);
  transition: background 0.24s var(--ease), color 0.24s var(--ease);
}

.page-products .pf-switch:has(#pf-ver-new:checked) label[for="pf-ver-new"],
.page-products .pf-switch:has(#pf-ver-old:checked) label[for="pf-ver-old"] {
  background: var(--ember);
  color: var(--midnight);
  font-weight: 700;
}

.page-products .pf-switch:has(input:focus-visible) {
  outline: 2px solid var(--neon);
  outline-offset: 4px;
}

.page-products .pf-case-body {
  position: relative;
}

.page-products .pf-case-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap-lg);
}

.page-products .pf-shot {
  margin: 0;
  transition: opacity 0.28s var(--ease);
}

.page-products .pf-shot .media {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(244, 241, 232, 0.18);
  background: var(--pitch-2);
  transition: box-shadow 0.28s var(--ease);
}

.page-products .pf-shot .media__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-products .pf-shot--old .media__img {
  filter: grayscale(1) contrast(1.14) brightness(1.03);
}

.page-products .pf-shot--old .media::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(7, 17, 14, 0.62) 1.1px, rgba(7, 17, 14, 0) 1.5px);
  background-size: 4px 4px;
  pointer-events: none;
}

.page-products .pf-shot--new .media {
  box-shadow: 0 0 0 2px var(--neon), 0 0 34px -8px rgba(59, 224, 196, 0.6);
}

.page-products .pf-shot figcaption {
  margin-top: 12px;
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(244, 241, 232, 0.72);
}

.page-products .pf-case-body:has(#pf-ver-old:checked) .pf-shot--new {
  opacity: 0.5;
}

.page-products .pf-case-body:has(#pf-ver-old:checked) .pf-shot--old .media {
  box-shadow: 0 0 0 2px var(--ember), 0 0 34px -8px rgba(242, 107, 31, 0.6);
}

.page-products .pf-case-diff {
  list-style: none;
  margin: clamp(24px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: rgba(244, 241, 232, 0.16);
  border: 1px solid rgba(244, 241, 232, 0.16);
  margin-top: clamp(24px, 3vw, 34px);
}

.page-products .pf-case-diff li {
  background: var(--pitch-2);
  padding: 16px 18px;
  font-size: 14.5px;
  line-height: 1.72;
  color: rgba(244, 241, 232, 0.78);
}

.page-products .pf-case-diff strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--neon);
  margin-bottom: 4px;
}

.page-products .pf-cases__foot {
  margin: 22px 0 0;
  font-size: 14px;
  color: rgba(244, 241, 232, 0.7);
}

/* ---------- 版本与适配 ---------- */
.page-products .pf-fit {
  padding: clamp(44px, 6vw, 88px) 0;
}

.page-products .pf-fit__stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--paper-grey);
  border: 1px solid var(--paper-grey);
}

.page-products .pf-fit__stats .stat {
  background: var(--paper);
  padding: 22px 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-products .pf-fit__stats .stat__num {
  font-family: var(--font-mono);
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ember-deep);
  line-height: 1;
}

.page-products .pf-fit__stats .stat__label {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--ink-soft);
}

.page-products .pf-fit__notes {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 3vw, 30px);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-products .pf-fit__notes h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.01em;
  padding-left: 12px;
  border-left: 3px solid var(--neon);
}

.page-products .pf-fit__notes p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-soft);
}

/* ---------- 下一步 ---------- */
.page-products .pf-next {
  padding: clamp(40px, 6vw, 80px) 0 clamp(56px, 8vw, 100px);
}

.page-products .pf-next h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.6vw, 34px);
  font-weight: 900;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
}

.page-products .pf-next__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--paper-grey);
}

.page-products .pf-next__list li {
  border-bottom: 1px solid var(--paper-grey);
}

.page-products .pf-next__link {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 16px;
  padding: 20px 4px;
  text-decoration: none;
  color: inherit;
}

.page-products .pf-next__link strong {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-products .pf-next__link span {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--turf);
}

.page-products .pf-next__arrow {
  margin-left: auto;
  font-family: var(--font-mono);
  color: var(--ember) !important;
  font-size: 16px !important;
  transition: transform 0.24s var(--ease);
}

.page-products .pf-next__link:hover strong,
.page-products .pf-next__link:focus-visible strong {
  text-decoration: underline;
  text-underline-offset: 5px;
  text-decoration-thickness: 2px;
  text-decoration-color: var(--ember);
}

.page-products .pf-next__link:hover .pf-next__arrow,
.page-products .pf-next__link:focus-visible .pf-next__arrow {
  transform: translateX(5px);
}

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

  .page-products .pf-case-diff {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 760px) {
  .page-products .pf-scenes {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 860px) {
  .page-products .pf-pin__grid {
    grid-template-columns: 5fr 7fr;
  }

  .page-products .pf-case-grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-products .pf-case-grid .pf-shot--old {
    transform: translateY(16px);
  }

  .page-products .pf-fit__notes {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 960px) {
  .page-products .pf-fit__stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-products .pf-hero__lede {
    max-width: 34em;
  }
}

@media (max-width: 560px) {
  .page-products .pf-hero h1 {
    font-size: clamp(30px, 9vw, 40px);
  }

  .page-products .pf-hero__tags li {
    font-size: 12.5px;
    padding: 6px 10px;
  }

  .page-products .pf-rail {
    gap: 14px;
  }

  .page-products .pf-card__body {
    padding: 16px 15px 18px;
  }

  .page-products .pf-cap > summary {
    padding: 16px 2px;
  }

  .page-products .pf-cap__meta {
    font-size: 11.5px;
  }

  .page-products .pf-switch label {
    padding: 6px 12px;
    font-size: 12px;
  }

  .page-products .pf-next__arrow {
    margin-left: 0;
    width: 100%;
    text-align: right;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pf-shot,
  .page-products .pf-shot .media,
  .page-products .pf-next__arrow,
  .page-products .pf-switch label {
    transition: none;
  }

  .page-products .pf-case-grid .pf-shot--old {
    transform: none;
  }
}