.about-channel-page {
  --about-ink: #103963;
  --about-blue: #0b7bd3;
  --about-cyan: #28b8c5;
  --about-acid: #c7ef50;
  --about-field: #effafa;
  --about-mist: #f4f8fa;
  --about-line: #d7e5eb;
}

.about-channel-page .channel-hero {
  background: var(--about-field);
}

.about-channel-page .channel-hero-media {
  left: 48%;
  width: 52%;
  border-left: 1px solid rgba(21, 106, 149, .14);
}

.about-channel-page .channel-hero-frame {
  filter: saturate(.86) contrast(1.015);
}

.about-channel-page .channel-hero-frame-rd {
  object-position: 51% center;
}

.about-channel-page .channel-hero-frame-site {
  object-position: 43% center;
}

.about-channel-page .channel-hero-frame-people {
  object-position: 48% center;
}

.about-channel-page .channel-hero-shade {
  background:
    linear-gradient(180deg, rgba(239, 250, 250, .95) 0%, rgba(239, 250, 250, .55) 12%, rgba(239, 250, 250, 0) 27%),
    linear-gradient(90deg, rgba(239, 250, 250, 1) 0%, rgba(239, 250, 250, .99) 43%, rgba(239, 250, 250, .62) 53%, rgba(12, 56, 88, .06) 72%, rgba(12, 56, 88, .2) 100%),
    linear-gradient(180deg, rgba(239, 250, 250, .04), rgba(12, 56, 88, .16));
}

.about-channel-page .channel-hero-shade::after {
  background: radial-gradient(circle at 73% 24%, rgba(255, 255, 255, .5), transparent 26%);
}

.about-channel-page .brand img {
  filter: none;
}

.about-channel-page .desktop-nav a,
.about-channel-page .language-link,
.about-channel-page .menu-button {
  color: var(--about-ink);
  text-shadow: none;
}

.about-channel-page .desktop-nav a.is-current {
  color: var(--about-blue);
}

.about-channel-page .nav-cta {
  background: var(--about-blue);
  color: #fff;
}

.about-channel-page .nav-cta:hover {
  background: var(--about-acid);
  color: var(--about-ink);
}

.about-channel-page .channel-hero-copy h1,
.about-channel-page .channel-hero-copy > p,
.about-channel-page .channel-text-link {
  color: var(--about-ink);
  text-shadow: none;
}

.about-channel-page .channel-hero-copy {
  max-width: 790px;
}

.about-channel-page .channel-hero-copy h1 {
  max-width: 760px;
}

.about-channel-page .channel-hero-copy h1 span {
  color: var(--about-blue);
}

.about-channel-page .channel-hero-copy > p {
  max-width: 620px;
  color: #5d7185;
}

.about-channel-page .channel-button-primary {
  background: var(--about-blue);
  color: #fff;
}

.about-channel-page .channel-button-primary:hover {
  background: var(--about-acid);
  color: var(--about-ink);
}

.about-channel-page .channel-text-link {
  border-color: rgba(13, 53, 88, .36);
}

.about-channel-page .channel-hero-controls button span {
  background: rgba(13, 53, 88, .27);
}

.about-channel-page .channel-hero-controls button.is-active span {
  background: var(--about-blue);
}

.about-channel-page .channel-hero-proof {
  width: 424px;
  grid-template-columns: 178px 1fr;
}

.about-channel-page .channel-hero-proof img {
  width: 178px;
}

.about-channel-page .channel-hero-proof strong {
  color: var(--about-ink);
  font-size: 16px;
}

.about-identity,
.about-operating,
.about-materials,
.about-milestones {
  padding: clamp(92px, 9vw, 144px) 0;
}

.about-section-head,
.about-operating-head,
.about-milestones-head,
.about-locations-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(390px, .92fr);
  gap: clamp(56px, 8vw, 126px);
  align-items: end;
}

.about-identity h2,
.about-operating h2,
.about-locations h2,
.about-materials h2,
.about-milestones h2,
.about-close h2 {
  margin: 0;
  color: var(--about-ink);
  font-family: Bahnschrift, "Arial Narrow", sans-serif;
  font-size: clamp(48px, 5.4vw, 78px);
  font-weight: 650;
  letter-spacing: -.035em;
  line-height: .98;
  text-wrap: balance;
}

html[lang="zh-CN"] .about-identity h2,
html[lang="zh-CN"] .about-operating h2,
html[lang="zh-CN"] .about-locations h2,
html[lang="zh-CN"] .about-materials h2,
html[lang="zh-CN"] .about-milestones h2,
html[lang="zh-CN"] .about-close h2 {
  font-family: "Microsoft YaHei UI", "Microsoft YaHei", "PingFang SC", sans-serif;
  font-size: clamp(44px, 4.7vw, 66px);
  font-weight: 680;
  letter-spacing: -.025em;
  line-height: 1.16;
  line-break: strict;
}

.about-identity h2 span,
.about-operating h2 span,
.about-locations h2 span,
.about-materials h2 span,
.about-milestones h2 span {
  color: var(--about-blue);
  font-weight: 520;
}

.about-section-head > p,
.about-operating-head > p,
.about-milestones-head > p,
.about-locations-intro > p {
  max-width: 660px;
  margin: 0;
  color: #64768a;
  font-size: 18px;
  line-height: 1.82;
}

.about-identity {
  background: #fff;
}

.about-fact-rail {
  display: grid;
  grid-template-columns: .7fr 1.05fr 1fr 1.25fr;
  margin-top: clamp(58px, 6.5vw, 92px);
  border-top: 1px solid var(--about-line);
  border-bottom: 1px solid var(--about-line);
}

.about-fact-rail > div {
  min-height: 168px;
  padding: 28px clamp(20px, 2.4vw, 34px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-right: 1px solid var(--about-line);
  background: #f8fbfc;
}

.about-fact-rail > div:last-child {
  border-right: 0;
}

.about-fact-rail span {
  color: var(--about-blue);
  font-family: Bahnschrift, "Arial Narrow", sans-serif;
  font-size: 11px;
  font-weight: 750;
  letter-spacing: .09em;
}

.about-fact-rail strong {
  max-width: 280px;
  color: var(--about-ink);
  font-size: clamp(18px, 1.6vw, 24px);
  line-height: 1.25;
}

.about-operating {
  background: var(--about-field);
}

.about-operating-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-template-rows: 330px 330px;
  gap: 14px;
  margin-top: clamp(58px, 6.5vw, 92px);
}

.about-operating-frame {
  min-width: 0;
  min-height: 0;
  position: relative;
  overflow: hidden;
  margin: 0;
  background: #d7e5eb;
  transition: transform .3s cubic-bezier(.22, 1, .36, 1), box-shadow .3s ease;
}

.about-operating-frame.is-research {
  grid-column: span 7;
  grid-row: 1 / -1;
}

.about-operating-frame.is-making,
.about-operating-frame.is-support {
  grid-column: span 5;
}

.about-operating-frame::after {
  content: "";
  position: absolute;
  inset: 32% 0 0;
  background: linear-gradient(0deg, rgba(7, 39, 65, .88), rgba(7, 39, 65, .04));
}

.about-operating-frame img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  transition: transform .8s cubic-bezier(.2, .8, .2, 1);
}

.about-operating-frame.is-research img {
  object-position: 52% center;
}

.about-operating-frame.is-making img {
  object-position: 76% center;
}

.about-operating-frame.is-support img {
  object-position: center;
}

.about-operating-frame:hover img {
  transform: scale(1.025);
}

.about-operating-frame figcaption {
  position: absolute;
  z-index: 2;
  right: clamp(22px, 2.6vw, 38px);
  bottom: clamp(22px, 2.6vw, 36px);
  left: clamp(22px, 2.6vw, 38px);
  color: #fff;
}

.about-operating-frame figcaption span {
  color: var(--about-acid);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .1em;
}

.about-operating-frame figcaption strong {
  max-width: 620px;
  display: block;
  margin-top: 10px;
  font-size: clamp(22px, 2.4vw, 36px);
  line-height: 1.08;
  letter-spacing: -.025em;
}

.about-operating-frame figcaption p {
  max-width: 550px;
  margin: 12px 0 0;
  color: rgba(255, 255, 255, .76);
  line-height: 1.62;
}

.about-operating-frame:not(.is-research) figcaption p {
  display: none;
}

.about-locations {
  padding: clamp(92px, 9vw, 142px) 0;
  color: #fff;
  background: var(--about-ink);
}

.about-locations-layout {
  display: grid;
  grid-template-columns: minmax(0, .82fr) minmax(440px, 1.18fr);
  gap: clamp(58px, 8vw, 118px);
  align-items: end;
}

.about-locations-intro {
  display: block;
}

.about-locations h2 {
  color: #fff;
}

.about-locations h2 span {
  color: var(--about-cyan);
}

.about-locations-intro > p {
  margin-top: 30px;
  color: rgba(255, 255, 255, .7);
}

.about-locations-media {
  min-height: 430px;
  position: relative;
  overflow: hidden;
  margin: 0;
  background: #214c70;
}

.about-locations-media::after {
  content: "";
  position: absolute;
  inset: 45% 0 0;
  background: linear-gradient(0deg, rgba(5, 32, 54, .76), transparent);
}

.about-locations-media img {
  width: 100%;
  height: 100%;
  position: absolute;
  inset: 0;
  display: block;
  object-fit: cover;
  object-position: center;
}

.about-locations-media figcaption {
  position: absolute;
  z-index: 2;
  right: 28px;
  bottom: 24px;
  left: 28px;
  color: var(--about-acid);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .08em;
}

.about-location-line {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 190px 1fr;
  align-items: center;
  margin-top: 4px;
  border-top: 1px solid rgba(255, 255, 255, .22);
  border-bottom: 1px solid rgba(255, 255, 255, .22);
}

.about-location-line article {
  min-height: 226px;
  padding: 34px 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.about-location-line small {
  color: var(--about-acid);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .1em;
}

.about-location-line strong {
  display: block;
  margin-top: 14px;
  font-size: clamp(28px, 3vw, 44px);
  letter-spacing: -.03em;
  line-height: 1.08;
}

.about-location-line p {
  max-width: 460px;
  margin: 18px 0 0;
  color: rgba(255, 255, 255, .67);
  line-height: 1.68;
}

.about-location-link {
  display: grid;
  place-items: center;
  color: var(--about-cyan);
  font-family: Bahnschrift, "Arial Narrow", sans-serif;
  font-size: 11px;
  font-weight: 750;
  letter-spacing: .06em;
  text-align: center;
}

.about-location-link::before {
  content: "";
  width: 100%;
  height: 1px;
  margin-bottom: -10px;
  background: var(--about-cyan);
}

.about-location-link span {
  position: relative;
  padding: 0 12px;
  background: var(--about-ink);
}

.about-materials {
  background: #fff;
}

.about-material-list {
  margin-top: clamp(58px, 6.5vw, 92px);
  border-top: 1px solid var(--about-line);
}

.about-material-list a {
  min-height: 146px;
  padding: 30px 20px;
  display: grid;
  grid-template-columns: minmax(210px, .65fr) minmax(340px, 1.6fr) auto;
  gap: clamp(28px, 5vw, 82px);
  align-items: center;
  border-bottom: 1px solid var(--about-line);
  transition: background-color .25s ease, padding-inline .25s cubic-bezier(.22, 1, .36, 1);
}

.about-material-list a:hover,
.about-material-list a:focus-visible {
  padding-inline: 30px;
  background: var(--about-field);
}

.about-material-list a:focus-visible {
  outline: 3px solid rgba(11, 123, 211, .36);
  outline-offset: 3px;
}

.about-material-list span {
  color: var(--about-blue);
  font-family: Bahnschrift, "Arial Narrow", sans-serif;
  font-size: 14px;
  font-weight: 750;
  letter-spacing: .07em;
}

.about-material-list strong {
  max-width: 720px;
  color: var(--about-ink);
  font-size: clamp(19px, 1.7vw, 25px);
  font-weight: 620;
  line-height: 1.42;
}

.about-material-list b {
  color: #64768a;
  font-size: 13px;
  white-space: nowrap;
}

.about-milestones {
  background: var(--about-mist);
}

.about-timeline {
  margin: clamp(58px, 6.5vw, 92px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--about-line);
}

.about-timeline li {
  display: grid;
  grid-template-columns: minmax(116px, .3fr) minmax(0, 1.7fr);
  gap: clamp(30px, 5vw, 78px);
  padding: 42px 0;
  border-bottom: 1px solid var(--about-line);
  transition: background-color .25s ease, padding-inline .25s cubic-bezier(.22, 1, .36, 1);
}

.about-timeline time {
  color: var(--about-blue);
  font-family: "Times New Roman", Times, serif;
  font-size: clamp(22px, 2.3vw, 34px);
  font-weight: 400;
  letter-spacing: -.02em;
}

@media (hover: hover) and (pointer: fine) {
  .about-operating-frame:hover {
    z-index: 2;
    box-shadow: 0 22px 42px rgba(8, 46, 73, .17);
    transform: translateY(-4px) scale(1.006);
  }

  .about-timeline li:hover {
    padding-inline: 18px;
    background: var(--about-field);
  }
}

.about-timeline strong {
  color: var(--about-ink);
  font-size: clamp(22px, 2.2vw, 32px);
  line-height: 1.18;
  letter-spacing: -.02em;
}

.about-timeline p {
  max-width: 760px;
  margin: 13px 0 0;
  color: #64768a;
  font-size: 16px;
  line-height: 1.75;
}

.about-close {
  position: relative;
  overflow: hidden;
  padding: clamp(96px, 10vw, 158px) 0;
  color: #fff;
  background: linear-gradient(112deg, #0b7bd3 0%, #0b7bd3 42%, #28b8c5 100%);
}

.about-close::after {
  content: "";
  width: 560px;
  height: 560px;
  position: absolute;
  top: -230px;
  right: -130px;
  border: 1px solid rgba(255, 255, 255, .28);
  border-radius: 50%;
  box-shadow: 0 0 0 84px rgba(255, 255, 255, .05), 0 0 0 168px rgba(255, 255, 255, .035);
}

.about-close-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 50px;
  align-items: end;
}

.about-close h2 {
  max-width: 900px;
  color: #fff;
}

.about-close p {
  max-width: 700px;
  margin: 28px 0 0;
  color: rgba(255, 255, 255, .82);
  font-size: 18px;
  line-height: 1.76;
}

.about-close-actions {
  min-width: 252px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

@media (max-width: 1020px) {
  .about-section-head,
  .about-operating-head,
  .about-milestones-head,
  .about-close-inner {
    grid-template-columns: 1fr;
  }

  .about-fact-rail {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-fact-rail > div:nth-child(2) {
    border-right: 0;
  }

  .about-fact-rail > div:nth-child(-n+2) {
    border-bottom: 1px solid var(--about-line);
  }

  .about-operating-grid {
    grid-template-rows: 460px 300px;
  }

  .about-operating-frame.is-research {
    grid-column: 1 / -1;
    grid-row: auto;
  }

  .about-operating-frame.is-making,
  .about-operating-frame.is-support {
    grid-column: span 6;
  }

  .about-operating-frame:not(.is-research) figcaption p {
    display: block;
  }

  .about-locations-layout {
    grid-template-columns: 1fr;
  }

  .about-locations-media {
    min-height: 480px;
  }

  .about-location-line {
    grid-template-columns: 1fr 140px 1fr;
  }

  .about-material-list a {
    grid-template-columns: minmax(190px, .7fr) 1.3fr;
  }

  .about-material-list b {
    grid-column: 2;
  }

  .about-close-actions {
    max-width: 440px;
  }
}

@media (max-width: 680px) {
  .about-channel-page .channel-hero-media {
    left: 55%;
    width: 45%;
    border-left: 0;
    opacity: .76;
  }

  .about-channel-page .channel-hero-shade {
    background:
      linear-gradient(90deg, rgba(239, 250, 250, 1) 0%, rgba(239, 250, 250, .98) 53%, rgba(239, 250, 250, .74) 72%, rgba(239, 250, 250, .42) 100%),
      linear-gradient(180deg, rgba(239, 250, 250, .84) 0%, rgba(239, 250, 250, .24) 34%, rgba(239, 250, 250, .2) 68%, rgba(239, 250, 250, .92) 100%);
  }

  .about-channel-page .channel-hero-frame-rd {
    object-position: 63% center;
  }

  .about-channel-page .channel-hero-copy h1,
  html[lang="zh-CN"] .about-channel-page .channel-hero-copy h1 {
    font-size: clamp(40px, 11.2vw, 48px);
    line-height: 1.08;
  }

  .about-channel-page .channel-hero-proof {
    width: calc(100vw - 36px);
    grid-template-columns: 132px 1fr;
  }

  .about-channel-page .channel-hero-proof img {
    width: 132px;
  }

  .about-identity,
  .about-operating,
  .about-locations,
  .about-materials,
  .about-milestones,
  .about-close {
    padding-block: 74px;
  }

  .about-section-head,
  .about-operating-head,
  .about-milestones-head {
    gap: 28px;
  }

  .about-identity h2,
  .about-operating h2,
  .about-locations h2,
  .about-materials h2,
  .about-milestones h2,
  .about-close h2 {
    font-size: clamp(40px, 11.4vw, 52px);
  }

  html[lang="zh-CN"] .about-identity h2,
  html[lang="zh-CN"] .about-operating h2,
  html[lang="zh-CN"] .about-locations h2,
  html[lang="zh-CN"] .about-materials h2,
  html[lang="zh-CN"] .about-milestones h2,
  html[lang="zh-CN"] .about-close h2 {
    font-size: clamp(38px, 10.6vw, 47px);
    line-height: 1.18;
  }

  .about-section-head > p,
  .about-operating-head > p,
  .about-milestones-head > p,
  .about-locations-intro > p,
  .about-close p {
    font-size: 16px;
  }

  .about-fact-rail {
    grid-template-columns: 1fr;
    margin-top: 44px;
  }

  .about-fact-rail > div {
    min-height: 116px;
    border-right: 0;
    border-bottom: 1px solid var(--about-line);
  }

  .about-fact-rail > div:last-child {
    border-bottom: 0;
  }

  .about-operating-grid {
    grid-template-columns: 1fr;
    grid-template-rows: 390px 310px 310px;
    margin-top: 44px;
  }

  .about-operating-frame.is-research,
  .about-operating-frame.is-making,
  .about-operating-frame.is-support {
    grid-column: auto;
    grid-row: auto;
  }

  .about-operating-frame.is-research img {
    object-position: 56% center;
  }

  .about-operating-frame figcaption strong {
    font-size: 24px;
  }

  .about-operating-frame figcaption p {
    font-size: 14px;
  }

  .about-locations-layout {
    gap: 42px;
  }

  .about-locations-media {
    min-height: 285px;
  }

  .about-location-line {
    grid-template-columns: 1fr;
  }

  .about-location-line article {
    min-height: 184px;
  }

  .about-location-link {
    min-height: 74px;
  }

  .about-location-link::before {
    width: 1px;
    height: 74px;
    margin: 0 0 -40px;
  }

  .about-material-list {
    margin-top: 44px;
  }

  .about-material-list a {
    min-height: 0;
    padding: 28px 0;
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .about-material-list a:hover,
  .about-material-list a:focus-visible {
    padding-inline: 14px;
  }

  .about-material-list b {
    grid-column: auto;
  }

  .about-timeline {
    margin-top: 44px;
  }

  .about-timeline li {
    grid-template-columns: 78px 1fr;
    gap: 20px;
    padding: 32px 0;
  }

  .about-timeline time {
    font-size: 21px;
  }

  .about-timeline strong {
    font-size: 22px;
  }

  .about-timeline p {
    font-size: 14px;
  }

  .about-close-actions {
    width: 100%;
    min-width: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .about-operating-frame,
  .about-operating-frame img,
  .about-material-list a,
  .about-timeline li {
    transition: none;
  }
}