:root {
  --shell-max: 1680px;
  --page-pad-x: clamp(72px, 15vw, 360px);
  --art-size: clamp(220px, 14.7vw, 296px);
  --project-art-size: clamp(270px, 14.25vw, 285px);
  --grid-gap: clamp(24px, 1.8vw, 36px);
  --cn-large: clamp(42px, 3vw, 58px);
  --en-large: clamp(38px, 2.85vw, 56px);
  --project-cn: clamp(31px, 1.78vw, 36px);
  --project-en: clamp(23px, 1.34vw, 27px);
  --project-body-cn: clamp(19px, 1.05vw, 21px);
  --project-action-ratio: 0.46;
  --black: #000;
  --blue: #0051ff;
  --system-font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background: #fff;
  color: var(--black);
  font-family: var(--system-font);
  font-size: 16px;
  letter-spacing: 0;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  top: 0;
  bottom: 0;
  left: calc(
    ((100vw - min(100vw, var(--shell-max))) / 2) + var(--page-pad-x) +
      var(--project-art-size)
  );
  z-index: 0;
  width: 1px;
  background: #d7d7d7;
  pointer-events: none;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

.floating-top {
  position: fixed;
  right: clamp(34px, 4.8vw, 92px);
  bottom: clamp(32px, 4.2vw, 80px);
  z-index: 20;
  display: grid;
  justify-items: end;
  width: clamp(74px, 5vw, 96px);
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition:
    opacity 180ms ease,
    transform 180ms ease;
}

.floating-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.top-button {
  display: block;
  width: clamp(66px, 4.45vw, 86px);
  height: clamp(66px, 4.45vw, 86px);
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.top-button img {
  width: 100%;
  height: 100%;
  transition:
    filter 180ms ease,
    transform 180ms ease;
}

.top-button:hover img {
  filter: brightness(0.84) saturate(1.18);
  transform: translateY(-2px);
}

.section-status {
  display: grid;
  justify-items: end;
  width: max-content;
  min-width: clamp(112px, 7.2vw, 138px);
  margin-top: clamp(6px, 0.45vw, 9px);
  padding: clamp(7px, 0.55vw, 11px) clamp(10px, 0.75vw, 15px);
  background: #f2f2f2;
  color: var(--blue);
  line-height: 1.05;
  text-align: right;
}

.status-cn {
  font-size: clamp(15px, 0.95vw, 18px);
  font-weight: 500;
}

.status-en {
  margin-top: 2px;
  font-size: clamp(14px, 0.85vw, 16px);
  font-weight: 400;
}

.site-shell {
  position: relative;
  z-index: 1;
  max-width: var(--shell-max);
  min-height: 100vh;
  margin: 0 auto;
  padding: clamp(60px, 5.75vw, 116px) var(--page-pad-x)
    clamp(120px, 10.9vw, 220px);
}

.masthead {
  display: block;
}

.primary-nav {
  display: grid;
  grid-template-columns: var(--project-art-size) minmax(0, 1fr);
  column-gap: clamp(28px, 1.55vw, 32px);
  align-items: start;
}

.primary-nav a {
  display: flex;
  gap: clamp(10px, 0.9vw, 18px);
  align-items: baseline;
  font-size: clamp(24px, 1.55vw, 31px);
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
}

.primary-nav a span:last-child {
  font-weight: 400;
}

.primary-nav a:first-child {
  grid-column: 1;
}

.primary-nav a:nth-child(2),
.primary-nav a:nth-child(3) {
  grid-column: 2;
  grid-row: 1;
}

.primary-nav a:nth-child(2) {
  justify-self: start;
}

.primary-nav a:nth-child(3) {
  margin-left: clamp(210px, 17vw, 340px);
}

.intro {
  display: grid;
  grid-template-columns: var(--project-art-size) minmax(0, 1fr);
  column-gap: clamp(28px, 1.55vw, 32px);
  align-items: start;
  margin-top: clamp(84px, 7vw, 132px);
  scroll-margin-top: 24px;
}

.intro-media {
  width: var(--project-art-size);
}

.intro-media-link {
  display: block;
}

.portrait {
  width: var(--project-art-size);
  aspect-ratio: 1;
  object-fit: cover;
  transition: opacity 180ms ease;
}

.intro-media-link:hover .portrait {
  opacity: 0.88;
}

.intro-media-link:hover .contact-panel {
  background: #003fe0;
}

.contact-panel {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: clamp(8px, 0.55vw, 11px);
  width: var(--project-art-size);
  height: calc(var(--project-art-size) * var(--project-action-ratio));
  padding: 0 clamp(20px, 1.25vw, 25px) clamp(20px, 1.25vw, 25px);
  background: var(--blue);
  color: #fff;
  font-size: clamp(17px, 0.95vw, 19px);
  font-weight: 500;
  line-height: 1;
  transition: background 180ms ease;
}

.contact-panel span:last-child {
  font-size: clamp(14px, 0.78vw, 16px);
}

.intro-copy {
  padding-top: 0;
}

.name-role {
  display: grid;
  grid-template-columns: minmax(300px, 1fr) minmax(220px, 0.56fr);
  column-gap: clamp(44px, 4vw, 80px);
  max-width: 1350px;
}

.cn-title,
.en-title,
.cn-tag,
.en-tag,
.cn-section,
.en-section,
.project h3,
.project-title-en,
.authors,
.abstract-cn {
  margin: 0;
  letter-spacing: 0;
}

.cn-title {
  font-size: clamp(34px, 2.05vw, 42px);
  font-weight: 700;
  line-height: 1.08;
}

.en-title {
  margin-top: clamp(10px, 0.75vw, 15px);
  font-size: clamp(27px, 1.55vw, 32px);
  font-weight: 400;
  line-height: 1;
  white-space: normal;
}

.intro-detail {
  margin-top: clamp(42px, 3vw, 60px);
}

.intro-detail + .intro-detail {
  margin-top: clamp(22px, 1.6vw, 32px);
}

.intro-cn {
  margin: 0;
  font-size: clamp(20px, 1.25vw, 25px);
  font-weight: 700;
  line-height: 1.12;
}

.intro-en {
  margin: clamp(7px, 0.55vw, 11px) 0 0;
  color: #b8b8b8;
  font-size: clamp(20px, 1.25vw, 25px);
  font-weight: 400;
  line-height: 1.08;
  text-transform: uppercase;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: calc(var(--project-art-size) * 0.06);
  margin-top: clamp(42px, 3.25vw, 65px);
}

.contact-chip {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  width: calc(var(--project-art-size) * 0.45);
  height: calc(var(--project-art-size) * 0.255);
  padding: 0 calc(var(--project-art-size) * 0.06);
  background: #f2f2f2;
  color: var(--blue);
  font-size: calc(var(--project-art-size) * 0.072);
  font-weight: 400;
  line-height: 1.12;
  text-align: right;
  transition:
    background 180ms ease,
    color 180ms ease;
}

.contact-chip span {
  display: block;
  width: 100%;
  text-align: right;
}

.contact-chip:hover {
  background: var(--blue);
  color: #fff;
}

.section-block {
  margin-top: clamp(130px, 9.4vw, 190px);
  scroll-margin-top: clamp(40px, 4vw, 80px);
}

.section-block h2 {
  position: relative;
  width: var(--project-art-size);
  margin: 0 0 clamp(70px, 4.6vw, 92px);
  padding-right: clamp(16px, 1.2vw, 24px);
  border-right: clamp(6px, 0.45vw, 9px) solid var(--blue);
  font-weight: inherit;
  text-align: right;
}

.cn-section,
.en-section {
  display: block;
}

.cn-section {
  font-size: clamp(44px, 2.55vw, 52px);
  font-weight: 700;
  line-height: 1;
}

.en-section {
  margin-top: clamp(8px, 0.7vw, 14px);
  font-size: clamp(38px, 2.2vw, 44px);
  font-weight: 400;
  line-height: 1;
}

.project {
  display: grid;
  grid-template-columns: var(--project-art-size) minmax(0, 1fr);
  column-gap: clamp(28px, 1.55vw, 32px);
  align-items: start;
}

.project + .project {
  margin-top: clamp(120px, 9vw, 180px);
}

.project-media {
  width: var(--project-art-size);
}

.project-image {
  display: block;
  position: relative;
  width: var(--project-art-size);
  aspect-ratio: 1;
  overflow: hidden;
}

.project-image img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  transition: opacity 180ms ease;
}

.project-image-hover {
  opacity: 0;
}

.project-media:hover .project-image-default {
  opacity: 0;
}

.project-media:hover .project-image-hover {
  opacity: 1;
}

.more-link-static {
  cursor: default;
}

.more-link {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: clamp(8px, 0.55vw, 11px);
  width: var(--project-art-size);
  height: calc(var(--project-art-size) * var(--project-action-ratio));
  padding: 0 clamp(20px, 1.25vw, 25px) clamp(20px, 1.25vw, 25px);
  background: var(--blue);
  color: #fff;
  font-size: clamp(17px, 0.95vw, 19px);
  font-weight: 500;
  line-height: 1;
}

.more-link span:last-child {
  font-size: clamp(14px, 0.78vw, 16px);
}

.project-copy {
  display: grid;
  grid-template-rows:
    minmax(var(--project-art-size), auto)
    calc(var(--project-art-size) * var(--project-action-ratio));
}

.design-copy {
  display: block;
}

.design-bottom {
  margin-top: clamp(36px, 3vw, 56px);
}

.project-top,
.project-bottom {
  min-width: 0;
}

.project-top {
  display: flex;
  flex-direction: column;
}

.project-bottom {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

.project h3 {
  display: grid;
  max-width: 1610px;
  font-size: var(--project-cn);
  font-weight: 500;
  line-height: 1.12;
}

.project-title-en {
  margin-top: clamp(30px, 1.85vw, 37px);
  max-width: 1680px;
  font-size: var(--project-en);
  font-weight: 400;
  line-height: 1.08;
  text-transform: uppercase;
}

.authors {
  margin-top: clamp(22px, 1.4vw, 28px);
  font-size: clamp(16px, 0.92vw, 18px);
  font-weight: 400;
  line-height: 1.16;
  text-transform: uppercase;
  white-space: normal;
}

.abstract-cn {
  margin-top: 0;
  max-width: 1280px;
  font-size: calc(var(--project-body-cn) * 0.91);
  font-weight: 200;
  line-height: 1.22;
  opacity: 0.6;
}

.conference {
  margin-top: clamp(18px, 1.35vw, 27px);
}

.conference p {
  margin: 0;
  font-size: clamp(15px, 0.86vw, 17px);
  font-weight: 400;
  line-height: 1.14;
  text-transform: uppercase;
}

.conference p:first-child {
  margin-bottom: 4px;
  font-size: clamp(23px, 1.28vw, 26px);
  font-weight: 400;
  text-transform: none;
}

.award-image {
  width: 100%;
  max-width: 1280px;
  margin-top: clamp(24px, 2vw, 38px);
}

@media (max-width: 1280px) {
  :root {
    --project-art-size: clamp(272px, 22.5vw, 300px);
  }

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

  .intro {
    grid-template-columns: var(--project-art-size) minmax(0, 1fr);
  }

  .intro-media,
  .portrait {
    width: var(--project-art-size);
  }

  .project {
    grid-template-columns: var(--project-art-size) minmax(0, 1fr);
    column-gap: 34px;
  }

  .section-block h2 {
    width: var(--project-art-size);
  }

  .project-media,
  .project-image,
  .project-image img,
  .more-link,
  .contact-panel {
    width: var(--project-art-size);
  }

  .contact-panel,
  .more-link {
    height: calc(var(--project-art-size) * var(--project-action-ratio));
  }

  .project-copy {
    grid-template-rows:
      minmax(var(--project-art-size), auto)
      calc(var(--project-art-size) * var(--project-action-ratio));
  }

  .primary-nav {
    column-gap: clamp(28px, 4vw, 52px);
  }

  .primary-nav a:nth-child(3) {
    margin-left: clamp(180px, 14vw, 260px);
  }

  .cn-section {
    font-size: 48px;
  }

  .project h3 {
    font-size: 32px;
  }

  .en-section {
    font-size: 45px;
  }

  .project-title-en {
    font-size: 24px;
  }

  .abstract-cn {
    font-size: 19px;
  }

  .authors {
    font-size: 16px;
    white-space: normal;
  }

  .conference p {
    font-size: 15px;
  }

  .conference p:first-child {
    font-size: 23px;
  }
}

@media (max-width: 1180px) {
  :root {
    --page-pad-x: clamp(40px, 8vw, 96px);
    --project-art-size: clamp(260px, 34vw, 420px);
    --project-cn: clamp(34px, 4.5vw, 48px);
    --project-en: clamp(24px, 3.2vw, 36px);
    --project-body-cn: clamp(20px, 2.6vw, 28px);
  }

  body::before {
    left: calc(var(--page-pad-x) + var(--project-art-size));
  }

  .site-shell {
    padding-top: 64px;
  }

  .primary-nav {
    grid-template-columns: var(--project-art-size) minmax(0, 1fr);
  }

  .primary-nav a:nth-child(3) {
    grid-row: 2;
    margin-top: 18px;
    margin-left: 0;
  }

  .intro,
  .project {
    grid-template-columns: var(--project-art-size) minmax(0, 1fr);
    column-gap: clamp(28px, 4vw, 48px);
  }

  .project-copy {
    display: block;
  }

  .project-bottom {
    margin-top: clamp(36px, 5vw, 56px);
  }

  .authors {
    margin-top: clamp(24px, 3vw, 34px);
  }
}

@media (max-width: 900px) {
  body::before {
    display: none;
  }

  .site-shell {
    padding: 36px clamp(34px, 6vw, 64px) 88px;
  }

  .primary-nav {
    display: grid;
    grid-template-columns: repeat(3, max-content);
    column-gap: clamp(14px, 4.6vw, 34px);
    align-items: baseline;
  }

  .primary-nav a,
  .primary-nav a:first-child,
  .primary-nav a:nth-child(2),
  .primary-nav a:nth-child(3) {
    grid-column: auto;
    grid-row: auto;
    margin: 0;
  }

  .primary-nav a:nth-child(3) {
    margin-left: 0;
  }

  .intro {
    grid-template-columns: 1fr;
    row-gap: 28px;
    margin-top: 104px;
  }

  .project {
    grid-template-columns: 1fr;
    row-gap: 30px;
    margin-top: 0;
  }

  .project-copy {
    display: block;
  }

  .project-top,
  .project-bottom {
    display: block;
  }

  .project + .project {
    margin-top: 96px;
  }

  .intro-media,
  .project-media {
    width: 60%;
  }

  .portrait,
  .contact-panel,
  .project-image,
  .project-image img,
  .more-link {
    width: 100%;
  }

  .contact-panel,
  .more-link {
    aspect-ratio: 3 / 1;
    height: auto;
  }

  .section-block {
    margin-top: 104px;
  }

  .section-block h2 {
    width: 100%;
    margin: 0 0 54px;
  }

  .project-title-en {
    margin-top: 36px;
  }

  .authors,
  .abstract-cn {
    margin-top: 42px;
  }

  .conference {
    margin-top: 38px;
  }
}

@media (max-width: 560px) {
  .site-shell {
    padding: 30px 18px 72px;
  }

  .primary-nav a {
    gap: clamp(4px, 1.4vw, 8px);
    font-size: clamp(13px, 4.15vw, 22px);
  }

  .intro {
    row-gap: 24px;
    margin-top: 82px;
  }

  .cn-section {
    font-size: 34px;
    line-height: 1.12;
  }

  .en-section {
    font-size: 30px;
    line-height: 1.05;
  }

  .en-section {
    margin-top: 14px;
  }

  .cn-title {
    font-size: 34px;
  }

  .en-title {
    font-size: 30px;
  }

  .intro-cn,
  .intro-en {
    font-size: 22px;
  }

  .contact-panel {
    gap: 10px;
    padding: 0 20px 18px;
    font-size: 24px;
    font-weight: 400;
  }

  .contact-panel span:last-child {
    font-size: 24px;
  }

  .contact-actions {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(12px, 4vw, 18px);
    margin-top: 34px;
  }

  .contact-chip {
    width: 100%;
    min-width: 0;
    height: clamp(48px, 13vw, 62px);
    padding: 0 clamp(8px, 2.4vw, 12px);
    font-size: clamp(13px, 4.1vw, 17px);
    line-height: 1.08;
  }

  .contact-chip span {
    overflow-wrap: normal;
    white-space: nowrap;
  }

  .section-block {
    margin-top: 84px;
  }

  .section-block h2 {
    margin-bottom: 44px;
  }

  .intro-media,
  .project-media {
    width: 60%;
  }

  .portrait,
  .contact-panel,
  .project-image,
  .project-image img,
  .more-link {
    width: 100%;
  }

  .more-link {
    aspect-ratio: 3 / 1;
    height: auto;
  }

  .project h3 {
    font-size: 30px;
    line-height: 1.14;
  }

  .project-title-en {
    margin-top: 28px;
    font-size: 26px;
    line-height: 1.12;
  }

  .more-link {
    gap: 10px;
    padding: 0 20px 18px;
    font-size: 24px;
    font-weight: 400;
  }

  .more-link span:last-child {
    font-size: 24px;
  }

  .authors {
    margin-top: 32px;
    font-size: 15px;
    line-height: 1.2;
  }

  .abstract-cn {
    margin-top: 30px;
    font-size: 22px;
    line-height: 1.24;
  }

  .conference {
    margin-top: 30px;
  }

  .conference p {
    font-size: 15px;
    line-height: 1.18;
  }

  .conference p:first-child {
    font-size: 22px;
  }

  .floating-top {
    right: clamp(26px, 7vw, 36px);
    bottom: 20px;
    width: 62px;
  }

  .top-button {
    width: 56px;
    height: 56px;
  }

  .section-status {
    min-width: 82px;
    padding: 7px 8px;
  }

  .status-cn {
    font-size: 14px;
  }

  .status-en {
    font-size: 12px;
  }
}

@media (max-width: 900px) {
  .site-shell {
    padding-right: clamp(44px, 8vw, 76px);
    padding-left: clamp(44px, 8vw, 76px);
  }

  .primary-nav {
    width: 100%;
    column-gap: clamp(10px, 3.4vw, 28px);
  }

  .primary-nav a {
    gap: clamp(4px, 1.2vw, 8px);
    font-size: clamp(12px, 3.6vw, 20px);
  }

  .cn-title {
    font-size: 24px;
  }

  .en-title {
    font-size: 19px;
  }

  .intro-cn,
  .intro-en {
    font-size: 14px;
  }

  .contact-panel {
    font-size: 13px;
  }

  .contact-panel span:last-child {
    font-size: 11px;
  }

  .contact-chip {
    font-size: calc(var(--project-art-size) * 0.0504);
  }

  .cn-section {
    font-size: 34px;
  }

  .en-section {
    font-size: 32px;
  }

  .project h3 {
    font-size: 22px;
  }

  .project-title-en {
    font-size: 17px;
  }

  .authors {
    font-size: 11px;
  }

  .abstract-cn {
    font-size: 13px;
  }

  .conference p {
    font-size: 11px;
  }

  .conference p:first-child {
    font-size: 16px;
  }

  .more-link {
    font-size: 13px;
  }

  .more-link span:last-child {
    font-size: 11px;
  }
}

@media (max-width: 560px) {
  .site-shell {
    padding-right: clamp(26px, 7vw, 36px);
    padding-left: clamp(26px, 7vw, 36px);
  }

  .primary-nav {
    column-gap: clamp(7px, 2.4vw, 12px);
  }

  .primary-nav a {
    gap: clamp(3px, 1vw, 5px);
    font-size: clamp(10px, 3.35vw, 14px);
  }

  .cn-title,
  .cn-section {
    font-size: 24px;
  }

  .en-title,
  .en-section {
    font-size: 21px;
  }

  .intro-cn,
  .intro-en {
    font-size: 15px;
  }

  .contact-panel,
  .more-link {
    font-size: 17px;
  }

  .contact-panel span:last-child,
  .more-link span:last-child {
    font-size: 17px;
  }

  .contact-chip {
    height: clamp(46px, 12.5vw, 58px);
    padding: 0 clamp(7px, 2vw, 10px);
    font-size: clamp(12px, 3.75vw, 15px);
  }

  .project h3 {
    font-size: 21px;
  }

  .project-title-en {
    font-size: 18px;
  }

  .authors,
  .conference p {
    font-size: 11px;
  }

  .abstract-cn {
    font-size: 15px;
  }

  .conference p:first-child {
    font-size: 15px;
  }
}