.portfolio-page {
  --portfolio-edge: clamp(18px, 3vw, 58px);
  background: var(--ink);
}

.portfolio-page.menu-open {
  overflow: hidden;
}

.portfolio-progress {
  position: fixed;
  z-index: 1000;
  top: 0;
  right: 0;
  left: 0;
  height: 3px;
  pointer-events: none;
}

.portfolio-progress span {
  width: 100%;
  height: 100%;
  display: block;
  background: var(--blue);
  transform: scaleX(0);
  transform-origin: left;
}

.portfolio-header .portfolio-home {
  min-width: 92px;
}

.portfolio-header .nav-pill {
  padding-right: 14px;
  padding-left: 14px;
  font-size: 12px;
}

.portfolio-grain {
  position: absolute;
  z-index: 0;
  inset: 0;
  opacity: 0.2;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.2'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light;
}

.portfolio-hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 96px var(--portfolio-edge) 34px;
  background: var(--ink);
  color: var(--fog);
}

.portfolio-hero::after {
  position: absolute;
  right: 11vw;
  bottom: 16vh;
  width: clamp(160px, 28vw, 460px);
  aspect-ratio: 1;
  border: 1px solid rgba(227, 227, 223, 0.22);
  border-radius: 50%;
  content: "";
  transform: rotateX(66deg) rotateZ(-9deg);
}

.portfolio-hero__meta,
.portfolio-kicker {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  border-top: 1px solid currentColor;
  padding-top: 10px;
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.portfolio-hero__title {
  position: relative;
  z-index: 2;
  margin: auto 0;
  color: var(--fog);
  font: 500 clamp(98px, 15vw, 244px) / 0.7 var(--display);
  letter-spacing: -0.075em;
  text-transform: uppercase;
}

.portfolio-hero__title > span {
  box-sizing: border-box;
  display: block;
  overflow: hidden;
}

.portfolio-hero__title > span:nth-child(2) {
  padding-left: 18vw;
}

.portfolio-hero__title > span:nth-child(3) {
  text-align: right;
}

.portfolio-hero__title > span > span {
  display: block;
  transform: translateY(112%);
  transition: transform 1050ms cubic-bezier(0.76, 0, 0.24, 1);
}

.portfolio-page.is-loaded .portfolio-hero__title > span > span {
  transform: translateY(0);
}

.portfolio-page.is-loaded .portfolio-hero__title > span:nth-child(2) > span {
  transition-delay: 90ms;
}

.portfolio-page.is-loaded .portfolio-hero__title > span:nth-child(3) > span {
  transition-delay: 180ms;
}

.portfolio-hero__footer {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 0.75fr 1fr auto;
  align-items: end;
  gap: 40px;
  font-size: 13px;
  line-height: 1.5;
}

.portfolio-hero__footer p {
  margin: 0;
}

.portfolio-hero__footer a {
  display: inline-flex;
  gap: 34px;
  text-decoration: none;
  text-transform: uppercase;
}

.portfolio-index,
.portfolio-chapter,
.portfolio-end {
  position: relative;
  padding: 110px var(--portfolio-edge) clamp(100px, 12vw, 190px);
}

.portfolio-index {
  background: var(--sage);
  color: var(--ink);
}

.portfolio-index__lead,
.portfolio-chapter__header {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  align-items: end;
  gap: 8vw;
  margin-top: clamp(80px, 11vw, 170px);
}

.portfolio-display {
  margin: 0;
  font: 500 clamp(72px, 10vw, 162px) / 0.8 var(--display);
  letter-spacing: -0.065em;
}

.portfolio-index__intro,
.portfolio-chapter__intro {
  margin: 0 0 1vw;
  max-width: 35ch;
  font-size: clamp(18px, 1.55vw, 26px);
  line-height: 1.5;
}

.portfolio-index__list {
  margin: clamp(90px, 12vw, 180px) 0 0;
  padding: 0;
  border-bottom: 1px solid currentColor;
  list-style: none;
}

.portfolio-index__list li {
  border-top: 1px solid currentColor;
}

.portfolio-index__list a {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr) auto;
  align-items: center;
  gap: 22px;
  padding: 22px 0 26px;
  text-decoration: none;
  transition: padding 260ms ease, color 260ms ease,
    transform 480ms cubic-bezier(0.34, 1.56, 0.64, 1), filter 260ms ease;
}

.portfolio-index__list a:hover {
  padding-right: 18px;
  padding-left: 18px;
  color: var(--blue);
}

.portfolio-index__list a > span,
.portfolio-index__list em {
  font-size: 11px;
  font-style: normal;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.portfolio-index__list strong {
  font: 500 clamp(38px, 5vw, 78px) / 0.9 var(--display);
  letter-spacing: -0.04em;
  overflow-wrap: anywhere;
}

.portfolio-chapter {
  overflow: hidden;
}

.portfolio-chapter--fog {
  background: var(--fog);
  color: var(--moss);
}

.portfolio-chapter--ink {
  background: #090a09;
  color: var(--soft-sage);
}

.portfolio-chapter--sage {
  background: var(--sage);
  color: var(--ink);
}

.portfolio-chapter__header {
  margin-top: clamp(80px, 9vw, 140px);
}

.portfolio-chapter__header .portfolio-kicker {
  grid-column: 1 / -1;
  grid-row: 1;
}

.portfolio-chapter__header .portfolio-display {
  grid-column: 1;
  grid-row: 2;
}

.portfolio-chapter__header .portfolio-chapter__intro {
  grid-column: 2;
  grid-row: 2;
}

.portfolio-projects {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(28px, 4vw, 70px) clamp(16px, 2.5vw, 42px);
  margin-top: clamp(90px, 12vw, 180px);
}

.portfolio-project {
  min-width: 0;
  margin: 0;
  border-top: 1px solid currentColor;
  padding-top: 12px;
}

.portfolio-projects--grid .portfolio-project {
  grid-column: span 6;
}

.portfolio-projects--grid .portfolio-project:nth-child(even) {
  margin-top: 7vw;
}

.portfolio-projects--four .portfolio-project:nth-child(1),
.portfolio-projects--four .portfolio-project:nth-child(4) {
  grid-column: span 7;
}

.portfolio-projects--four .portfolio-project:nth-child(2),
.portfolio-projects--four .portfolio-project:nth-child(3) {
  grid-column: span 5;
}

.portfolio-projects--four .portfolio-project:nth-child(2) {
  margin-top: 11vw;
}

.portfolio-projects--four .portfolio-project:nth-child(3) {
  margin-top: 5vw;
}

.portfolio-projects--two .portfolio-project {
  grid-column: span 6;
}

.portfolio-projects--two .portfolio-project:nth-child(2) {
  margin-top: 8vw;
}

.portfolio-projects--three .portfolio-project:first-child {
  grid-column: span 7;
}

.portfolio-projects--three .portfolio-project:nth-child(2) {
  grid-column: span 5;
  margin-top: 10vw;
}

.portfolio-projects--three .portfolio-project:nth-child(3) {
  grid-column: 4 / span 7;
  margin-top: 3vw;
}

.portfolio-project figure {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  margin: 0;
  background: var(--moss);
}

.portfolio-project__gallery {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(82%, 1fr);
  gap: 10px;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  scroll-behavior: smooth;
  scroll-snap-type: inline mandatory;
  scrollbar-color: currentColor transparent;
  scrollbar-width: thin;
}

.portfolio-project__gallery:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 5px;
}

.portfolio-project__gallery .portfolio-project__frame {
  scroll-snap-align: start;
}

.portfolio-project__gallery-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  min-height: 44px;
  border-bottom: 1px solid currentColor;
  padding: 8px 0;
  font-size: 10px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.portfolio-project__gallery-controls {
  display: flex;
  gap: 6px;
}

.portfolio-project__gallery-controls button {
  width: 34px;
  height: 30px;
  border: 1px solid currentColor;
  border-radius: 999px;
  background: transparent;
  color: inherit;
  cursor: pointer;
  font: inherit;
  transition: background-color 240ms ease, color 240ms ease,
    transform 420ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

.portfolio-project__gallery-controls button:hover,
.portfolio-project__gallery-controls button:focus-visible {
  background: currentColor;
  color: var(--fog);
  transform: scale(1.08);
}

.portfolio-project--portrait figure {
  aspect-ratio: 4 / 5;
}

.portfolio-project img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  filter: saturate(0.86) contrast(1.03);
  transition: transform 900ms cubic-bezier(0.22, 1, 0.36, 1), filter 500ms ease;
}

.portfolio-project:hover img {
  transform: scale(1.025);
  filter: saturate(1) contrast(1.02);
}

.portfolio-project__meta {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  border-bottom: 1px solid currentColor;
  padding: 12px 0;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.portfolio-project h3 {
  max-width: 22ch;
  margin: 24px 0 0;
  font: 500 clamp(34px, 3.8vw, 64px) / 0.94 var(--display);
  letter-spacing: -0.05em;
}

.portfolio-project p {
  margin: 18px 0 0;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.portfolio-project__links {
  display: grid;
  gap: 6px;
  margin-top: 22px;
}

.portfolio-project__links a {
  min-height: 52px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  border-top: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  padding: 12px 2px;
  color: inherit;
  text-decoration: none;
  font-size: clamp(15px, 1.35vw, 20px);
  letter-spacing: 0.025em;
  transition: padding 240ms ease, color 240ms ease,
    transform 440ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

.portfolio-project__links a:hover,
.portfolio-project__links a:focus-visible {
  padding-right: 14px;
  padding-left: 14px;
  color: var(--blue);
  transform: scale(1.012);
}

.portfolio-end {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  background: var(--moss);
  color: var(--fog);
}

.portfolio-end__title {
  margin: auto 0;
  font: 500 clamp(80px, 12vw, 200px) / 0.78 var(--display);
  letter-spacing: -0.07em;
}

.portfolio-end__links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid currentColor;
  border-left: 1px solid currentColor;
}

.portfolio-end__links a {
  min-height: 92px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  padding: 22px;
  text-decoration: none;
  font-size: clamp(18px, 1.8vw, 28px);
  transition: background-color 260ms ease, color 260ms ease,
    transform 480ms cubic-bezier(0.34, 1.56, 0.64, 1), filter 260ms ease;
}

.portfolio-end__links a:hover {
  background: var(--fog);
  color: var(--moss);
}

.portfolio-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-top: 26px;
  font-size: 10px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.portfolio-reveal {
  opacity: 0;
  transform: translateY(42px);
  transition: opacity 700ms ease, transform 850ms cubic-bezier(0.22, 1, 0.36, 1);
}

.portfolio-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

html[lang="zh-CN"] .portfolio-hero__title,
html[lang="zh-CN"] .portfolio-display,
html[lang="zh-CN"] .portfolio-project h3,
html[lang="zh-CN"] .portfolio-end__title,
html[lang="zh-CN"] .portfolio-index__list strong {
  line-height: 1.08;
  letter-spacing: -0.04em;
  text-transform: none;
}

html[lang="zh-CN"] .portfolio-hero__title > span {
  padding: 0.1em 0.04em 0.14em;
  margin: -0.1em 0 -0.14em;
}

html[lang="zh-CN"] .portfolio-hero__title > span:nth-child(2) {
  padding-left: 12vw;
}

html[lang="zh-CN"] .portfolio-project h3 {
  max-width: 22ch;
}

html[lang="zh-CN"] .portfolio-hero__footer a,
html[lang="zh-CN"] .portfolio-kicker,
html[lang="zh-CN"] .portfolio-project p,
html[lang="zh-CN"] .portfolio-project__meta,
html[lang="zh-CN"] .portfolio-footer {
  text-transform: none;
}

html[lang="zh-CN"] .portfolio-project__gallery-bar {
  letter-spacing: 0.04em;
  text-transform: none;
}

@media (max-width: 1280px) {
  .portfolio-header .nav-toggle {
    display: inline-flex;
  }

  .portfolio-header .site-nav {
    position: absolute;
    top: 66px;
    left: var(--portfolio-edge);
    flex-direction: column;
    align-items: flex-start;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-12px);
    transition: opacity 220ms ease, transform 220ms ease;
  }

  .portfolio-page.menu-open .portfolio-header .site-nav {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }
}

@media (hover: hover) {
  .portfolio-index__list a:hover {
    transform: scale(1.012);
  }

  .portfolio-hero__footer a:hover,
  .portfolio-end__links a:hover {
    transform: scale(1.025);
  }
}

@media (max-width: 920px) {
  .portfolio-index__lead,
  .portfolio-chapter__header {
    grid-template-columns: 1fr;
  }

  .portfolio-chapter__header .portfolio-kicker,
  .portfolio-chapter__header .portfolio-display,
  .portfolio-chapter__header .portfolio-chapter__intro {
    grid-column: 1;
    grid-row: auto;
  }

  .portfolio-index__intro,
  .portfolio-chapter__intro {
    max-width: 620px;
  }
}

@media (max-width: 760px) {
  .portfolio-page {
    --portfolio-edge: 16px;
  }

  .portfolio-header .portfolio-home {
    display: none;
  }

  .portfolio-hero {
    min-height: 820px;
    padding: 82px var(--portfolio-edge) 28px;
  }

  .portfolio-hero::after {
    right: -12vw;
    bottom: 24vh;
    width: 72vw;
  }

  .portfolio-hero__meta,
  .portfolio-kicker {
    font-size: 10px;
  }

  .portfolio-hero__title {
    font-size: clamp(76px, 23vw, 102px);
    line-height: 0.72;
  }

  .portfolio-hero__title > span:nth-child(2) {
    padding-left: 7vw;
  }

  .portfolio-hero__title > span:nth-child(3) {
    text-align: left;
  }

  .portfolio-hero__footer {
    grid-template-columns: 1fr 1fr;
    gap: 22px;
    font-size: 10px;
  }

  .portfolio-hero__footer a {
    grid-column: 1 / -1;
    justify-content: space-between;
    border-top: 1px solid currentColor;
    padding-top: 12px;
  }

  .portfolio-index,
  .portfolio-chapter,
  .portfolio-end {
    padding: 82px var(--portfolio-edge) 92px;
  }

  .portfolio-index__lead,
  .portfolio-chapter__header {
    gap: 42px;
    margin-top: 72px;
  }

  .portfolio-display {
    font-size: clamp(60px, 18vw, 80px);
    line-height: 0.84;
  }

  .portfolio-index__intro,
  .portfolio-chapter__intro {
    font-size: 17px;
  }

  .portfolio-index__list {
    margin-top: 72px;
  }

  .portfolio-index__list a {
    grid-template-columns: 32px minmax(0, 1fr) auto;
    gap: 12px;
    padding: 16px 0 18px;
  }

  .portfolio-index__list em {
    display: none;
  }

  .portfolio-index__list strong {
    font-size: 36px;
  }

  .portfolio-projects {
    display: block;
    margin-top: 76px;
  }

  .portfolio-projects .portfolio-project,
  .portfolio-projects--four .portfolio-project:nth-child(2),
  .portfolio-projects--four .portfolio-project:nth-child(3),
  .portfolio-projects--two .portfolio-project:nth-child(2),
  .portfolio-projects--three .portfolio-project:nth-child(2),
  .portfolio-projects--three .portfolio-project:nth-child(3) {
    margin-top: 64px;
  }

  .portfolio-projects--grid .portfolio-project:nth-child(even) {
    margin-top: 64px;
  }

  .portfolio-projects .portfolio-project:first-child {
    margin-top: 0;
  }

  .portfolio-project--portrait figure {
    aspect-ratio: 16 / 10;
  }

  .portfolio-project h3 {
    font-size: clamp(39px, 12vw, 54px);
  }

  .portfolio-project__gallery {
    grid-auto-columns: 91%;
  }

  .portfolio-project__gallery-bar {
    min-height: 42px;
  }

  .portfolio-project__links a {
    font-size: 16px;
  }

  .portfolio-end {
    min-height: 760px;
  }

  .portfolio-end__title {
    font-size: clamp(68px, 20vw, 92px);
  }

  html[lang="zh-CN"] .portfolio-hero__title {
    font-size: clamp(60px, 18vw, 82px);
    line-height: 1.08;
  }

  html[lang="zh-CN"] .portfolio-display {
    font-size: clamp(50px, 15vw, 68px);
  }

  html[lang="zh-CN"] .portfolio-project h3 {
    font-size: clamp(34px, 10vw, 46px);
  }

  html[lang="zh-CN"] .portfolio-end__title {
    font-size: clamp(54px, 16vw, 74px);
  }

  .portfolio-end__links {
    grid-template-columns: 1fr;
  }

  .portfolio-footer {
    flex-direction: column;
  }
}

@media (max-width: 760px) {
  html:not([lang="zh-CN"]) .portfolio-hero__title {
    font-size: clamp(66px, 20vw, 88px);
    line-height: 0.9;
  }

  html:not([lang="zh-CN"]) .portfolio-display {
    font-size: clamp(52px, 16vw, 72px);
    line-height: 0.98;
  }

  html:not([lang="zh-CN"]) .portfolio-project h3 {
    font-size: clamp(35px, 10.5vw, 48px);
    line-height: 1.02;
  }

  html:not([lang="zh-CN"]) .portfolio-end__title {
    font-size: clamp(58px, 17vw, 80px);
    line-height: 0.94;
  }
}

@media (prefers-reduced-motion: reduce) {
  .portfolio-hero__title > span > span,
  .portfolio-reveal {
    opacity: 1;
    transform: none;
  }
}