:root {
  --pf-ink-950: #050607;
  --pf-ink-900: #0a0c0f;
  --pf-ink-800: #15181d;
  --pf-paper: #f2f2ef;
  --pf-paper-cool: #e8edf2;
  --pf-text: #f5f5f2;
  --pf-text-quiet: rgba(245, 245, 242, .62);
  --pf-line: rgba(245, 245, 242, .18);
  --pf-accent: #0064fe;
  --pf-danger: #b5aaa0;
  --pf-space-page: clamp(24px, 5.5vw, 96px);
  --pf-space-breath: clamp(72px, 10vw, 160px);
  --pf-motion-composed: 820ms cubic-bezier(.22, 1, .36, 1);
}

.product-form-story {
  position: relative;
  min-height: 100svh;
  overflow: clip;
  isolation: isolate;
  background: var(--pf-ink-950);
  color: var(--pf-text);
}

.product-form-story::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent calc(var(--pf-space-page) - 1px), var(--pf-line) var(--pf-space-page), transparent calc(var(--pf-space-page) + 1px)),
    radial-gradient(circle at 82% 14%, rgba(0, 100, 254, .08), transparent 34%);
}

.product-form-story + .product-form-story {
  border-top: 1px solid var(--pf-line);
}

.pf-shell {
  position: relative;
  width: min(100%, 1680px);
  min-height: 100svh;
  margin: 0 auto;
  padding: clamp(88px, 10vh, 132px) var(--pf-space-page) var(--pf-space-breath);
}

.pf-header {
  display: grid;
  grid-template-columns: minmax(66px, 8vw) minmax(0, 1fr);
  gap: clamp(20px, 3vw, 52px);
  align-items: start;
}

.pf-header__index {
  display: grid;
  grid-template-columns: auto minmax(16px, 1fr) auto;
  gap: 10px;
  align-items: center;
  padding-top: 7px;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--pf-text-quiet);
}

.pf-header__index span {
  color: var(--pf-text);
  font-size: 16px;
}

.pf-header__index i {
  height: 1px;
  background: var(--pf-line);
}

.pf-header__copy {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, .54fr);
  column-gap: clamp(32px, 7vw, 120px);
}

.pf-header__copy > p {
  grid-column: 1 / -1;
  margin: 0 0 20px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--pf-text-quiet);
}

.pf-header__copy h2 {
  max-width: 880px;
  margin: 0;
  font-size: clamp(34px, 4.6vw, 76px);
  line-height: 1.08;
  font-weight: 400;
  letter-spacing: -.045em;
}

.pf-header__copy > div {
  align-self: end;
  max-width: 510px;
  padding-bottom: 7px;
  font-size: clamp(14px, 1.12vw, 18px);
  line-height: 1.85;
  color: var(--pf-text-quiet);
}

.pf-content {
  margin: clamp(54px, 8vh, 104px) 0 0 clamp(66px, 8vw, 128px);
}

.pf-criteria {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  overflow: hidden;
  background: rgba(255, 255, 255, .12);
}

.pf-criteria__side {
  min-width: 0;
  padding: clamp(24px, 3vw, 48px);
  background: var(--pf-paper-cool);
  color: #0a1628;
}

.pf-criteria__side--no {
  background: #d9dde2;
}

.pf-criteria__side header {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: baseline;
  margin-bottom: 26px;
}

.pf-criteria__side header span {
  font-size: clamp(34px, 4vw, 68px);
  line-height: 1;
  font-weight: 300;
  letter-spacing: -.05em;
}

.pf-criteria__side header p {
  max-width: 230px;
  margin: 0;
  text-align: right;
  font-size: 12px;
  line-height: 1.55;
  color: rgba(10, 22, 40, .58);
}

.pf-criteria__images {
  display: grid;
  grid-template-columns: 1.05fr .95fr .72fr;
  height: clamp(290px, 31vw, 520px);
  gap: 1px;
  overflow: hidden;
  background: rgba(10, 22, 40, .12);
}

.pf-criteria__side--no .pf-criteria__images {
  grid-template-columns: 1fr 1fr 1fr;
}

.pf-criteria__images figure {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  background: #efefed;
}

.pf-criteria__images img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: saturate(.25);
}

.pf-criteria__side--yes .pf-criteria__images figure:nth-child(3) img {
  object-position: 52% center;
}

.pf-criteria__side--no .pf-criteria__images figure:nth-child(1) img {
  object-position: 61% center;
}

.pf-rule-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: pf-rule;
}

.pf-rule-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 3px 10px;
  min-width: 0;
  counter-increment: pf-rule;
}

.pf-rule-list li::before {
  content: "0" counter(pf-rule);
  grid-row: 1 / 3;
  padding-top: 2px;
  font-size: 10px;
  color: rgba(10, 22, 40, .46);
}

.pf-rule-list b {
  font-size: 13px;
  font-weight: 600;
}

.pf-rule-list span {
  font-size: 11px;
  line-height: 1.5;
  color: rgba(10, 22, 40, .56);
}

.pf-evolution {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(22px, 4vw, 72px);
  width: min(100%, 1120px);
  margin: 0 auto;
  padding-top: 38px;
}

.pf-evolution__line {
  position: absolute;
  top: 0;
  left: 16.666%;
  right: 16.666%;
  height: 1px;
  background: var(--pf-line);
}

.pf-evolution__line::before,
.pf-evolution__line::after,
.pf-evolution__line span {
  content: "";
  position: absolute;
  top: -3px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--pf-text);
}

.pf-evolution__line::before { left: 0; }
.pf-evolution__line span { left: 50%; transform: translateX(-50%); }
.pf-evolution__line::after { right: 0; }

.pf-evolution article {
  min-width: 0;
  text-align: center;
}

.pf-evolution__figure {
  display: grid;
  place-items: center;
  height: clamp(360px, 48vw, 680px);
}

.pf-evolution__figure img {
  width: auto;
  height: 88%;
  max-width: 100%;
  object-fit: contain;
  filter: invert(1);
}

.pf-evolution__copy {
  position: relative;
  min-height: 146px;
  padding: 24px 8px 0;
  border-top: 1px solid var(--pf-line);
}

.pf-evolution__copy > span {
  display: block;
  margin-bottom: 14px;
  font-size: 12px;
  letter-spacing: .15em;
  color: var(--pf-text-quiet);
}

.pf-evolution__copy h3 {
  margin: 0 0 10px;
  font-size: clamp(19px, 1.7vw, 28px);
  font-weight: 400;
}

.pf-evolution__copy p {
  max-width: 250px;
  margin: 0 auto;
  font-size: 12px;
  line-height: 1.7;
  color: var(--pf-text-quiet);
}

.pf-asset-note {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  width: min(100%, 1120px);
  margin: clamp(46px, 7vh, 76px) auto 0;
  padding-top: 20px;
  border-top: 1px solid var(--pf-line);
}

.pf-asset-note span {
  font-size: 10px;
  letter-spacing: .16em;
  color: var(--pf-text-quiet);
}

.pf-asset-note p {
  margin: 0;
  font-size: clamp(14px, 1.3vw, 19px);
  letter-spacing: .06em;
}

.pf-spec {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, .7fr);
  min-height: min(720px, 72vw);
  background: var(--pf-paper);
  color: #0a0c0f;
}

.pf-spec__diagram {
  position: relative;
  display: grid;
  place-items: center;
  min-width: 0;
  margin: 0;
  padding: clamp(26px, 4vw, 64px);
  overflow: hidden;
}

.pf-spec__diagram::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  background: rgba(0, 100, 254, .2);
}

.pf-spec__diagram img {
  position: relative;
  z-index: 1;
  width: auto;
  height: min(65vw, 710px);
  max-width: 88%;
  object-fit: contain;
}

.pf-spec__rules {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0;
  padding: clamp(30px, 5vw, 74px);
  border-left: 1px solid rgba(10, 12, 15, .16);
}

.pf-status {
  align-self: flex-start;
  margin-bottom: 34px;
  padding: 7px 10px;
  border: 1px solid rgba(10, 12, 15, .28);
  font-size: 9px;
  letter-spacing: .14em;
}

.pf-spec__rules div {
  display: grid;
  grid-template-columns: 34px 1fr;
  column-gap: 10px;
  padding: 22px 0;
  border-top: 1px solid rgba(10, 12, 15, .16);
}

.pf-spec__rules b {
  grid-row: 1 / 3;
  font-size: 10px;
  font-weight: 500;
  color: rgba(10, 12, 15, .42);
}

.pf-spec__rules h3 {
  margin: 0 0 7px;
  font-size: 16px;
  font-weight: 600;
}

.pf-spec__rules p {
  margin: 0;
  font-size: 12px;
  line-height: 1.65;
  color: rgba(10, 12, 15, .6);
}

.product-form-story .pf-header,
.product-form-story .pf-content {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity var(--pf-motion-composed), transform var(--pf-motion-composed);
}

.product-form-story .pf-content {
  transition-delay: 120ms;
}

.product-form-story.is-active .pf-header,
.product-form-story.is-active .pf-content {
  opacity: 1;
  transform: none;
}

.product-form-story--02 .pf-evolution article {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--pf-motion-composed), transform var(--pf-motion-composed);
}

.product-form-story--02.is-active .pf-evolution article {
  opacity: 1;
  transform: none;
}

.product-form-story--02.is-active .pf-evolution article:nth-of-type(2) { transition-delay: 100ms; }
.product-form-story--02.is-active .pf-evolution article:nth-of-type(3) { transition-delay: 200ms; }

@media (max-width: 980px) {
  .pf-header__copy {
    grid-template-columns: 1fr;
    row-gap: 22px;
  }

  .pf-header__copy > div {
    max-width: 680px;
  }

  .pf-content {
    margin-left: 0;
  }

  .pf-criteria {
    grid-template-columns: 1fr;
  }

  .pf-criteria__images {
    height: min(64vw, 520px);
  }

  .pf-spec {
    grid-template-columns: 1fr;
  }

  .pf-spec__rules {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    padding: 30px;
    border-top: 1px solid rgba(10, 12, 15, .16);
    border-left: 0;
  }

  .pf-status {
    grid-column: 1 / -1;
  }
}

@media (max-width: 680px) {
  :root {
    --pf-space-page: 20px;
    --pf-space-breath: 88px;
  }

  .pf-shell {
    padding-top: 82px;
  }

  .pf-header {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .pf-header__index {
    width: 116px;
  }

  .pf-header__copy h2 {
    font-size: 34px;
  }

  .pf-header__copy > div {
    font-size: 14px;
    line-height: 1.75;
  }

  .pf-criteria__side {
    padding: 20px;
  }

  .pf-criteria__side header {
    align-items: flex-end;
  }

  .pf-criteria__side header p {
    max-width: 160px;
    font-size: 10px;
  }

  .pf-criteria__images,
  .pf-criteria__side--no .pf-criteria__images {
    grid-template-columns: repeat(3, 1fr);
    height: 58vw;
    min-height: 220px;
  }

  .pf-rule-list {
    grid-template-columns: 1fr;
    gap: 13px;
  }

  .pf-evolution {
    grid-template-columns: 1fr;
    gap: 58px;
    padding: 0;
  }

  .pf-evolution__line {
    top: 8%;
    bottom: 8%;
    left: 18px;
    right: auto;
    width: 1px;
    height: auto;
  }

  .pf-evolution__line::before { top: 0; left: -3px; }
  .pf-evolution__line span { top: 50%; left: -3px; transform: translateY(-50%); }
  .pf-evolution__line::after { top: auto; right: auto; bottom: 0; left: -3px; }

  .pf-evolution article {
    display: grid;
    grid-template-columns: minmax(140px, .9fr) 1.1fr;
    align-items: center;
    gap: 22px;
    text-align: left;
  }

  .pf-evolution__figure {
    height: 350px;
  }

  .pf-evolution__copy {
    min-height: 0;
    padding: 0 0 0 22px;
    border-top: 0;
    border-left: 1px solid var(--pf-line);
  }

  .pf-evolution__copy p {
    margin: 0;
  }

  .pf-asset-note {
    flex-direction: column;
  }

  .pf-spec__diagram {
    padding: 28px 18px;
  }

  .pf-spec__diagram img {
    width: min(82vw, 450px);
    height: auto;
    max-width: none;
  }

  .pf-spec__rules {
    grid-template-columns: 1fr;
    padding: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .product-form-story *,
  .product-form-story *::before,
  .product-form-story *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }

  .product-form-story .pf-header,
  .product-form-story .pf-content,
  .product-form-story--02 .pf-evolution article {
    opacity: 1;
    transform: none;
  }
}