.page-contact {
  --ct-line: rgba(90, 107, 140, .3);
  --ct-line-strong: rgba(90, 107, 140, .55);
  --ct-line-light: rgba(196, 203, 216, .22);
  --ct-mono: var(--lt-font-mono);
  display: block;
  background: var(--lt-ice);
  color: var(--lt-black);
  overflow-x: hidden;
}

.page-contact *,
.page-contact *::before,
.page-contact *::after {
  box-sizing: border-box;
}

.page-contact a:focus-visible,
.page-contact button:focus-visible,
.page-contact summary:focus-visible {
  outline: 2px solid var(--lt-yellow);
  outline-offset: 2px;
}

.page-contact .ct-section {
  padding-block: 48px;
}

/* ---------- 01 联络方式总览 ---------- */

.page-contact .ct-hero {
  position: relative;
  padding-block: 20px 40px;
  background-color: var(--lt-black);
  color: var(--lt-ice);
  overflow: hidden;
}

.page-contact .ct-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(196, 203, 216, .07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(196, 203, 216, .07) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.page-contact .ct-hero > .shell {
  position: relative;
  z-index: 1;
}

.page-contact .crumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .crumb__link,
.page-contact .crumb__current,
.page-contact .crumb__sep {
  font-size: .8125rem;
  letter-spacing: .06em;
  line-height: 1.6;
}

.page-contact .crumb__link {
  color: var(--lt-silver);
  text-decoration: none;
  transition: color 140ms var(--lt-ease);
}

.page-contact .crumb__link:hover {
  color: var(--lt-yellow);
}

.page-contact .crumb__current {
  color: var(--lt-yellow);
}

.page-contact .crumb__sep {
  color: rgba(196, 203, 216, .42);
}

.page-contact .ct-hero__grid {
  display: grid;
  gap: 28px;
  margin-top: 12px;
}

.page-contact .ct-kicker {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 24px 0 0;
  font-size: .75rem;
  letter-spacing: .14em;
  color: var(--lt-yellow);
}

.page-contact .ct-kicker__num {
  font-family: var(--ct-mono);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0;
}

.page-contact .ct-hero__title {
  margin: 16px 0 0;
  font-family: var(--lt-font-display);
  font-size: clamp(1.75rem, 1.05rem + 3.2vw, 3.25rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -.01em;
  color: #fff;
}

.page-contact .ct-hero__lede {
  margin: 20px 0 0;
  max-width: 36em;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--lt-silver);
}

.page-contact .ct-channels {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--ct-line-light);
  border: 1px solid var(--ct-line-light);
}

.page-contact .ct-channel {
  display: grid;
  gap: 10px;
  padding: 20px;
  background: var(--lt-night);
}

.page-contact .ct-channel--addr {
  background: var(--lt-night);
}

.page-contact .ct-channel__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-contact .ct-channel__label {
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--lt-silver);
}

.page-contact .ct-channel__value {
  margin: 0;
  font-family: var(--ct-mono);
  font-size: clamp(.875rem, .55rem + 1.7vw, 1.5rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -.01em;
  color: #fff;
  word-break: break-all;
}

.page-contact .ct-channel__value--addr {
  font-family: var(--lt-font-display);
  font-size: clamp(1rem, .8rem + .9vw, 1.25rem);
  font-weight: 700;
  letter-spacing: .01em;
  word-break: normal;
}

.page-contact .ct-channel__link {
  color: #fff;
  text-decoration: none;
  background-image: linear-gradient(var(--lt-yellow), var(--lt-yellow));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0 2px;
  transition: background-size 160ms var(--lt-ease), color 160ms var(--lt-ease);
}

.page-contact .ct-channel__link:hover,
.page-contact .ct-channel__link:focus-visible {
  color: var(--lt-yellow);
  background-size: 100% 2px;
}

.page-contact .ct-channel__note {
  margin: 0;
  font-size: .8125rem;
  line-height: 1.7;
  color: var(--lt-silver);
}

.page-contact .ct-copy {
  flex: none;
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 4px 12px;
  background: transparent;
  border: 1px solid rgba(196, 203, 216, .45);
  border-radius: 0;
  color: var(--lt-silver);
  font-family: inherit;
  font-size: .75rem;
  letter-spacing: .08em;
  cursor: pointer;
  transition: background-color 140ms var(--lt-ease), color 140ms var(--lt-ease), border-color 140ms var(--lt-ease);
}

.page-contact .ct-copy:hover {
  border-color: var(--lt-yellow);
  color: var(--lt-yellow);
}

.page-contact .ct-copy:active,
.page-contact .ct-copy[data-copied] {
  background: var(--lt-yellow);
  border-color: var(--lt-yellow);
  color: var(--lt-black);
}

.page-contact .ct-hero__stamp {
  margin: 26px 0 0;
  padding: 14px 18px;
  border-left: 4px solid var(--lt-yellow);
  background: rgba(10, 27, 77, .78);
  font-size: .875rem;
  line-height: 1.75;
  color: var(--lt-silver);
}

.page-contact .ct-hero__stamp .lt-num {
  font-family: var(--ct-mono);
  font-weight: 700;
  color: var(--lt-yellow);
}

/* ---------- 通用章节元素 ---------- */

.page-contact .section-mark {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--lt-slate);
}

.page-contact .section-mark__num {
  font-family: var(--ct-mono);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1;
  color: var(--lt-blue);
}

.page-contact .section-mark__name {
  font-size: .8125rem;
  letter-spacing: .12em;
  white-space: nowrap;
}

.page-contact .section-mark__line {
  flex: 1 1 auto;
  height: 1px;
  background: var(--ct-line);
}

.page-contact .ct-h2 {
  margin: 22px 0 0;
  font-family: var(--lt-font-serif);
  font-size: clamp(1.5rem, 1.1rem + 1.6vw, 2.125rem);
  font-weight: 600;
  line-height: 1.28;
  letter-spacing: .01em;
  color: var(--lt-black);
}

.page-contact .ct-h2--light {
  color: #fff;
}

.page-contact .ct-intro {
  margin: 16px 0 0;
  max-width: 42em;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--lt-slate);
}

/* ---------- 02 选通道 ---------- */

.page-contact .ct-routing {
  background: var(--lt-ice);
}

.page-contact .ct-split {
  display: grid;
  gap: 1px;
  margin-top: 30px;
  background: var(--ct-line);
  border: 1px solid var(--ct-line);
}

.page-contact .ct-lane {
  padding: 24px 20px;
  background: #fff;
}

.page-contact .ct-lane--mail {
  border-left: 4px solid var(--lt-blue);
}

.page-contact .ct-lane--phone {
  background: var(--lt-concrete);
  border-left: 4px solid var(--lt-yellow);
}

.page-contact .ct-lane__tag {
  display: inline-block;
  margin: 0;
  padding: 4px 10px;
  border: 1px solid var(--lt-blue);
  color: var(--lt-blue);
  font-size: .75rem;
  letter-spacing: .1em;
  line-height: 1.5;
}

.page-contact .ct-lane__tag--yellow {
  border-color: var(--lt-black);
  background: var(--lt-yellow);
  color: var(--lt-black);
}

.page-contact .ct-lane__title {
  margin: 18px 0 0;
  font-family: var(--lt-font-display);
  font-size: 1.25rem;
  font-weight: 800;
  line-height: 1.4;
  color: var(--lt-black);
}

.page-contact .ct-lane__list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-lane__list li {
  padding: 14px 0;
  border-top: 1px solid var(--ct-line);
}

.page-contact .ct-lane__list li:first-child {
  border-top: 0;
  padding-top: 4px;
}

.page-contact .ct-lane__k {
  display: block;
  font-size: .9375rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--lt-black);
}

.page-contact .ct-lane__v {
  display: block;
  margin-top: 4px;
  font-size: .875rem;
  line-height: 1.75;
  color: var(--lt-slate);
}

.page-contact .ct-lane__text {
  margin: 16px 0 0;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--lt-slate);
}

/* ---------- 03 勘误提交 ---------- */

.page-contact .ct-erratum {
  background: var(--lt-ice);
  border-top: 1px solid var(--ct-line);
}

.page-contact .ct-steps {
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-step {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  column-gap: 16px;
  row-gap: 6px;
  padding: 22px 0;
  border-top: 1px solid var(--ct-line);
}

.page-contact .ct-step:last-child {
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .ct-step__num {
  position: relative;
  grid-column: 1;
  grid-row: 1 / span 2;
  align-self: start;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  background: var(--lt-blue);
  color: #fff;
  font-family: var(--ct-mono);
  font-size: .9375rem;
  font-weight: 700;
}

.page-contact .ct-step__num::after {
  content: "";
  position: absolute;
  left: 100%;
  top: 50%;
  width: 16px;
  height: 1px;
  background: var(--lt-yellow);
}

.page-contact .ct-step__title {
  grid-column: 2;
  margin: 0;
  padding-top: 10px;
  font-family: var(--lt-font-display);
  font-size: 1.0625rem;
  font-weight: 800;
  line-height: 1.45;
  color: var(--lt-black);
}

.page-contact .ct-step__text {
  grid-column: 2;
  margin: 0;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--lt-slate);
}

.page-contact .ct-details {
  margin-top: 26px;
  border: 1px solid var(--ct-line);
  background: #fff;
}

.page-contact .ct-details__summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  list-style: none;
  cursor: pointer;
  font-size: .9375rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--lt-blue);
}

.page-contact .ct-details__summary::-webkit-details-marker {
  display: none;
}

.page-contact .ct-details__summary::before {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  border: solid currentColor;
  border-width: 2px 2px 0 0;
  transform: rotate(45deg) translateY(-2px);
  transition: transform 160ms var(--lt-ease);
}

.page-contact .ct-details[open] .ct-details__summary::before {
  transform: rotate(135deg) translateY(-2px);
}

.page-contact .ct-details__body {
  padding: 6px 20px 20px;
  border-top: 1px solid var(--ct-line);
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--lt-slate);
}

.page-contact .ct-mail {
  margin: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}

.page-contact .ct-mail dt {
  padding: 12px 0 2px;
  font-size: .8125rem;
  letter-spacing: .08em;
  color: var(--lt-slate);
  border-top: 1px solid var(--ct-line);
}

.page-contact .ct-mail dd {
  margin: 0;
  padding: 0 0 12px;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--lt-black);
}

.page-contact .ct-figure {
  margin: 30px 0 0;
}

.page-contact .ct-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--ct-line);
}

.page-contact .ct-figure figcaption {
  margin-top: 12px;
  font-size: .8125rem;
  line-height: 1.7;
  color: var(--lt-slate);
}

/* ---------- 04 合作咨询 ---------- */

.page-contact .ct-partner {
  position: relative;
  overflow: hidden;
  background: var(--lt-blue);
  color: #fff;
}

.page-contact .ct-partner::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, .07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, .07) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
}

.page-contact .ct-partner::after {
  content: "";
  position: absolute;
  right: -90px;
  bottom: -90px;
  width: 300px;
  height: 300px;
  background: var(--lt-night);
  opacity: .6;
  transform: rotate(45deg);
  pointer-events: none;
}

.page-contact .ct-partner > .shell {
  position: relative;
  z-index: 1;
}

.page-contact .ct-partner .section-mark {
  color: rgba(255, 255, 255, .78);
}

.page-contact .ct-partner .section-mark__num {
  color: var(--lt-yellow);
}

.page-contact .ct-partner .section-mark__line {
  background: rgba(255, 255, 255, .32);
}

.page-contact .ct-partner .ct-h2 {
  color: #fff;
}

.page-contact .ct-partner .ct-intro {
  color: rgba(255, 255, 255, .84);
}

.page-contact .ct-partner__grid {
  display: grid;
  gap: 18px;
  margin-top: 30px;
}

.page-contact .ct-partner__col {
  padding: 24px 20px;
  border: 1px solid rgba(255, 255, 255, .32);
  background: rgba(8, 9, 13, .3);
}

.page-contact .ct-partner__col--note {
  border-color: var(--lt-yellow);
  background: var(--lt-yellow);
  color: var(--lt-black);
}

.page-contact .ct-partner__sub {
  margin: 0;
  font-family: var(--lt-font-display);
  font-size: 1.0625rem;
  font-weight: 800;
  line-height: 1.5;
}

.page-contact .ct-partner__list {
  display: grid;
  gap: 14px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-partner__list li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  font-size: .9375rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, .92);
}

.page-contact .ct-partner__list .lt-num {
  font-family: var(--ct-mono);
  font-weight: 700;
  color: var(--lt-yellow);
}

.page-contact .ct-partner__col--note p {
  margin: 14px 0 0;
  font-size: .9375rem;
  line-height: 1.85;
  color: rgba(8, 9, 13, .84);
}

/* ---------- 05 回复节奏 ---------- */

.page-contact .ct-tempo {
  background: var(--lt-ice);
}

.page-contact .ct-tempo__list {
  display: grid;
  gap: 1px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
  background: var(--ct-line);
  border: 1px solid var(--ct-line);
}

.page-contact .ct-tempo__item {
  display: grid;
  gap: 8px;
  padding: 20px;
  background: #fff;
}

.page-contact .ct-tempo__time {
  font-family: var(--ct-mono);
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -.01em;
  color: var(--lt-blue);
}

.page-contact .ct-tempo__body {
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--lt-slate);
}

.page-contact .ct-tempo__item--alert {
  background: var(--lt-black);
}

.page-contact .ct-tempo__item--alert .ct-tempo__time {
  color: var(--lt-yellow);
}

.page-contact .ct-tempo__item--alert .ct-tempo__body {
  color: var(--lt-silver);
}

/* ---------- 06 来访与通行 ---------- */

.page-contact .ct-visit {
  position: relative;
  overflow: hidden;
  background: var(--lt-black);
  color: var(--lt-silver);
}

.page-contact .ct-visit::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(196, 203, 216, .06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(196, 203, 216, .06) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.page-contact .ct-visit > .shell {
  position: relative;
  z-index: 1;
}

.page-contact .ct-visit .section-mark {
  color: var(--lt-silver);
}

.page-contact .ct-visit .section-mark__num {
  color: var(--lt-yellow);
}

.page-contact .ct-visit .section-mark__line {
  background: var(--ct-line-light);
}

.page-contact .ct-visit__grid {
  display: grid;
  gap: 28px;
  margin-top: 24px;
}

.page-contact .ct-visit__text {
  margin: 18px 0 0;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--lt-silver);
}

.page-contact .ct-details--dark {
  border-color: var(--ct-line-light);
  background: rgba(10, 27, 77, .6);
}

.page-contact .ct-details--dark .ct-details__summary {
  color: var(--lt-yellow);
}

.page-contact .ct-details--dark .ct-details__body {
  border-top-color: var(--ct-line-light);
  color: var(--lt-silver);
}

.page-contact .ct-visit__prep {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-visit__prep li {
  position: relative;
  padding-left: 18px;
  font-size: .9375rem;
  line-height: 1.75;
}

.page-contact .ct-visit__prep li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 6px;
  background: var(--lt-yellow);
}

.page-contact .ct-visit__figure {
  margin: 0;
}

.page-contact .ct-visit__figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--ct-line-light);
}

.page-contact .ct-visit__figure figcaption {
  margin-top: 12px;
  font-size: .8125rem;
  line-height: 1.7;
  color: rgba(196, 203, 216, .78);
}

/* ---------- 07 下一步去处 ---------- */

.page-contact .ct-next {
  background: var(--lt-ice);
  border-top: 1px solid var(--ct-line);
}

.page-contact .ct-next__grid {
  display: grid;
  gap: 14px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-next__card {
  margin: 0;
}

.page-contact .ct-next__link {
  display: block;
  height: 100%;
  padding: 22px 20px;
  background: #fff;
  border: 1px solid var(--ct-line);
  color: inherit;
  text-decoration: none;
  transition: background-color 150ms var(--lt-ease), border-color 150ms var(--lt-ease);
}

.page-contact .ct-next__link:hover,
.page-contact .ct-next__link:focus-visible {
  background: var(--lt-black);
  border-color: var(--lt-yellow);
}

.page-contact .ct-next__k {
  display: block;
  font-family: var(--lt-font-display);
  font-size: 1.0625rem;
  font-weight: 800;
  line-height: 1.5;
  color: var(--lt-blue);
  transition: color 150ms var(--lt-ease);
}

.page-contact .ct-next__link:hover .ct-next__k,
.page-contact .ct-next__link:focus-visible .ct-next__k {
  color: var(--lt-yellow);
}

.page-contact .ct-next__v {
  display: block;
  margin-top: 10px;
  font-size: .875rem;
  line-height: 1.75;
  color: var(--lt-slate);
  transition: color 150ms var(--lt-ease);
}

.page-contact .ct-next__link:hover .ct-next__v,
.page-contact .ct-next__link:focus-visible .ct-next__v {
  color: var(--lt-silver);
}

.page-contact .ct-next__back {
  margin: 24px 0 0;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--lt-slate);
}

.page-contact .ct-inline-link {
  color: var(--lt-blue);
  text-decoration: none;
  border-bottom: 2px solid var(--lt-yellow);
  padding-bottom: 1px;
  transition: color 140ms var(--lt-ease);
}

.page-contact .ct-inline-link:hover {
  color: var(--lt-black);
}

/* ---------- 断点 ---------- */

@media (min-width: 640px) {
  .page-contact .ct-section {
    padding-block: 64px;
  }

  .page-contact .ct-channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .ct-channel--addr {
    grid-column: 1 / -1;
  }

  .page-contact .ct-next__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .ct-mail {
    grid-template-columns: 130px minmax(0, 1fr);
  }

  .page-contact .ct-mail dt {
    padding: 14px 16px 14px 0;
  }

  .page-contact .ct-mail dd {
    padding: 14px 0;
  }
}

@media (min-width: 768px) {
  .page-contact .ct-hero {
    padding-block: 28px 56px;
  }

  .page-contact .ct-hero__lede {
    font-size: 1.0625rem;
  }

  .page-contact .ct-channel {
    padding: 24px 28px;
  }

  .page-contact .ct-lane {
    padding: 32px 28px;
  }

  .page-contact .ct-step {
    column-gap: 24px;
    padding: 26px 0;
  }

  .page-contact .ct-step__num::after {
    width: 24px;
  }

  .page-contact .ct-tempo__item {
    grid-template-columns: 200px minmax(0, 1fr);
    align-items: baseline;
    gap: 24px;
    padding: 22px 28px;
  }
}

@media (min-width: 900px) {
  .page-contact .ct-split {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .ct-partner__grid {
    grid-template-columns: 1.15fr 1fr;
    gap: 24px;
  }
}

@media (min-width: 1024px) {
  .page-contact .ct-section {
    padding-block: 88px;
  }

  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: 48px;
    align-items: start;
  }

  .page-contact .ct-channels {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-contact .ct-channel--addr {
    grid-column: auto;
  }

  .page-contact .ct-visit__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 48px;
    align-items: start;
  }
}

@media (min-width: 1100px) {
  .page-contact .ct-next__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }
}