.page-contact {
  background: var(--pb-ink-950);
  color: var(--pb-paper);
}

.page-contact a:focus-visible,
.page-contact summary:focus-visible {
  outline: 2px solid var(--pb-pulse);
  outline-offset: 3px;
}

/* 面包屑 */
.page-contact .ct-crumb {
  padding-top: 28px;
}

.page-contact .ct-crumb__list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  font-family: var(--pb-font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--pb-ash);
}

.page-contact .ct-crumb__list a {
  color: var(--pb-ash);
  text-decoration: none;
}

.page-contact .ct-crumb__list a:hover {
  color: var(--pb-pulse);
}

.page-contact .ct-crumb__sep {
  color: var(--pb-line);
}

.page-contact .ct-crumb__list [aria-current="page"] {
  color: var(--pb-paper);
}

/* 首屏 */
.page-contact .ct-hero {
  position: relative;
  padding: 30px 0 54px;
  border-bottom: 1px solid var(--pb-line);
  background-image:
    linear-gradient(to right, rgba(27, 46, 77, 0.5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(27, 46, 77, 0.5) 1px, transparent 1px);
  background-size: 88px 88px;
  background-position: -1px -1px;
}

.page-contact .ct-hero__grid {
  display: grid;
  gap: 38px;
}

.page-contact .ct-hero__title {
  margin: 14px 0 0;
  max-width: 22ch;
}

.page-contact .ct-hero__lead {
  margin-top: 18px;
}

.page-contact .ct-channels {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--pb-line);
  border: 1px solid var(--pb-line);
}

.page-contact .ct-channel {
  display: grid;
  gap: 7px;
  padding: 18px 16px 20px;
  background: var(--pb-ink-900);
  transition: box-shadow 0.2s var(--pb-ease), background 0.2s var(--pb-ease);
}

.page-contact .ct-channel:hover,
.page-contact .ct-channel:focus-within {
  background: #0f1a2c;
  box-shadow: inset 2px 0 0 var(--pb-signal);
}

.page-contact .ct-channel__label {
  font-family: var(--pb-font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--pb-ash);
}

.page-contact .ct-channel__value {
  font-family: var(--pb-font-mono);
  font-size: clamp(17px, 4.6vw, 25px);
  line-height: 1.32;
  color: var(--pb-paper);
  text-decoration: none;
  word-break: break-word;
}

.page-contact .ct-channel__value--plain {
  font-family: var(--pb-font-body);
  font-size: clamp(15px, 3.6vw, 18px);
  font-weight: 700;
  line-height: 1.6;
}

.page-contact a.ct-channel__value:hover,
.page-contact a.ct-channel__value:focus-visible {
  color: var(--pb-pulse);
}

.page-contact .ct-channel__hint {
  font-size: 13px;
  line-height: 1.75;
  color: var(--pb-ash);
}

.page-contact .ct-hero__aside {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-contact .ct-hero__figure {
  margin: 0;
  border: 1px solid var(--pb-line);
  background: var(--pb-ink-900);
  overflow: hidden;
}

.page-contact .ct-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .ct-hero__note {
  margin: 0;
  justify-self: end;
  font-family: var(--pb-font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--pb-ash);
}

/* 章节通用 */
.page-contact .ct-section {
  padding: 48px 0;
  border-bottom: 1px solid var(--pb-line);
}

.page-contact .ct-head {
  display: grid;
  gap: 14px;
  max-width: 64ch;
}

.page-contact .ct-head__lead {
  margin: 0;
  color: var(--pb-ash);
}

.page-contact .ct-head__side {
  margin: 0;
  color: var(--pb-ash);
}

.page-contact .ct-head__side a,
.page-contact .ct-prep__item a,
.page-contact .ct-faq__intro a,
.page-contact .ct-qa__body a,
.page-contact .ct-legal__line a {
  color: var(--pb-pulse);
  text-decoration: none;
  border-bottom: 1px solid rgba(55, 230, 206, 0.35);
}

.page-contact .ct-head__side a:hover,
.page-contact .ct-prep__item a:hover,
.page-contact .ct-faq__intro a:hover,
.page-contact .ct-qa__body a:hover,
.page-contact .ct-legal__line a:hover {
  border-bottom-color: var(--pb-pulse);
}

/* 提交前准备 */
.page-contact .ct-prep {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--pb-line);
  border: 1px solid var(--pb-line);
}

.page-contact .ct-prep__item {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 22px 18px 24px;
  background: var(--pb-ink-900);
}

.page-contact .ct-prep__num {
  font-family: var(--pb-font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--pb-index);
}

.page-contact .ct-prep__item h3 {
  margin: 0;
}

.page-contact .ct-prep__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--pb-ash);
}

/* 服务时间 */
.page-contact .ct-hours__grid {
  display: grid;
  gap: 30px;
}

.page-contact .ct-hours__intro .pb-prose {
  margin-top: 14px;
  color: var(--pb-ash);
}

.page-contact .ct-hours__list {
  margin: 0;
  display: grid;
  border-top: 1px solid var(--pb-line);
}

.page-contact .ct-hours__row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--pb-line);
}

.page-contact .ct-hours__row dt {
  font-family: var(--pb-font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--pb-ash);
}

.page-contact .ct-hours__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--pb-paper);
}

.page-contact .ct-mono {
  font-family: var(--pb-font-mono);
  color: var(--pb-signal);
  letter-spacing: 0.02em;
}

.page-contact .ct-hours__foot {
  margin: 26px 0 0;
  font-size: 13px;
  line-height: 1.85;
  color: var(--pb-ash);
}

/* 内容合作 */
.page-contact .ct-head--split {
  max-width: none;
  display: grid;
  gap: 20px;
}

.page-contact .ct-partner__grid {
  margin-top: 32px;
  display: grid;
  gap: 1px;
  background: var(--pb-line);
  border: 1px solid var(--pb-line);
}

.page-contact .ct-partner__col {
  padding: 22px 18px 26px;
  background: var(--pb-ink-900);
}

.page-contact .ct-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 13px;
}

.page-contact .ct-list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--pb-paper);
}

.page-contact .ct-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 7px;
  border: 1px solid var(--pb-pulse);
  background: transparent;
}

/* 四步流程 */
.page-contact .ct-flow {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  position: relative;
  display: grid;
  gap: 4px;
}

.page-contact .ct-flow::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 24px;
  bottom: 24px;
  width: 1px;
  background: linear-gradient(to bottom, var(--pb-pulse), rgba(55, 230, 206, 0.08));
}

.page-contact .ct-step {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding: 6px 0;
}

.page-contact .ct-step__node {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  font-family: var(--pb-font-mono);
  font-size: 13px;
  color: var(--pb-pulse);
  background: var(--pb-ink-950);
  border: 1px solid var(--pb-line);
}

.page-contact .ct-step__summary {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 40px;
  padding: 4px 0;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--pb-paper);
  cursor: pointer;
  list-style: none;
}

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

.page-contact .ct-step__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--pb-font-mono);
  font-size: 15px;
  color: var(--pb-signal);
}

.page-contact .ct-step__detail[open] .ct-step__summary::after {
  content: "−";
}

.page-contact .ct-step__detail[open] .ct-step__summary {
  color: var(--pb-pulse);
}

.page-contact .ct-step__body {
  padding: 2px 0 16px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--pb-ash);
}

.page-contact .ct-step__body p {
  margin: 0 0 10px;
}

.page-contact .ct-step__body ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-contact .ct-step__body li {
  position: relative;
  padding-left: 14px;
}

.page-contact .ct-step__body li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.8em;
  width: 5px;
  height: 5px;
  background: var(--pb-pulse);
}

.page-contact .ct-banner {
  margin: 44px 0 0;
  border: 1px solid var(--pb-line);
  overflow: hidden;
}

.page-contact .ct-banner img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* 合作问答 */
.page-contact .ct-faq {
  display: grid;
  gap: 30px;
}

.page-contact .ct-faq__intro .pb-prose {
  margin-top: 14px;
  color: var(--pb-ash);
}

.page-contact .ct-faq__list {
  display: grid;
  border-top: 1px solid var(--pb-line);
}

.page-contact .ct-qa {
  border-bottom: 1px solid var(--pb-line);
}

.page-contact .ct-qa summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--pb-paper);
  cursor: pointer;
  list-style: none;
}

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

.page-contact .ct-qa summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--pb-font-mono);
  font-size: 15px;
  color: var(--pb-pulse);
}

.page-contact .ct-qa[open] summary::after {
  content: "−";
}

.page-contact .ct-qa[open] summary {
  color: var(--pb-pulse);
}

.page-contact .ct-qa__body {
  padding: 0 0 18px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--pb-ash);
}

.page-contact .ct-qa__body p {
  margin: 0;
}

/* 反色信息条 */
.page-contact .ct-strip {
  padding: 36px 0 40px;
  background: var(--pb-paper);
  color: var(--pb-ink-950);
}

.page-contact .ct-strip__title {
  margin: 0 0 22px;
  font-family: var(--pb-font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: rgba(7, 13, 24, 0.55);
}

.page-contact .ct-strip__grid {
  display: grid;
  gap: 18px;
}

.page-contact .ct-strip__item {
  display: grid;
  gap: 7px;
  padding-top: 12px;
  border-top: 1px solid rgba(7, 13, 24, 0.16);
}

.page-contact .ct-strip__label {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(7, 13, 24, 0.55);
}

.page-contact .ct-strip__value {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--pb-ink-950);
  word-break: break-word;
}

.page-contact .ct-strip .ct-mono {
  font-family: var(--pb-font-mono);
  color: var(--pb-ink-950);
  font-weight: 600;
}

/* 地址与备案 */
.page-contact .ct-legal {
  padding: 28px 0 16px;
}

.page-contact .ct-legal__inner {
  display: grid;
  gap: 6px;
}

.page-contact .ct-legal__line {
  margin: 0;
  font-size: 12px;
  line-height: 1.85;
  color: var(--pb-ash);
}

@media (min-width: 640px) {
  .page-contact .ct-hours__row {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 22px;
    align-items: baseline;
  }
}

@media (min-width: 780px) {
  .page-contact .ct-prep {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .ct-strip__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }
}

@media (min-width: 900px) {
  .page-contact .ct-hero {
    padding: 44px 0 72px;
  }

  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: start;
  }

  .page-contact .ct-channel {
    padding: 20px 22px 22px;
  }

  .page-contact .ct-section {
    padding: 72px 0;
  }

  .page-contact .ct-head--split {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: 52px;
    align-items: end;
  }

  .page-contact .ct-partner__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: 40px;
  }

  .page-contact .ct-partner__col {
    padding: 26px 26px 30px;
  }

  .page-contact .ct-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
  }

  .page-contact .ct-flow::before {
    left: 0;
    right: 0;
    top: 20px;
    bottom: auto;
    width: auto;
    height: 1px;
    background: linear-gradient(to right, var(--pb-pulse), rgba(55, 230, 206, 0.1));
  }

  .page-contact .ct-step {
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
    padding: 0;
  }

  .page-contact .ct-step__summary {
    min-height: 0;
  }

  .page-contact .ct-banner {
    margin-top: 52px;
  }

  .page-contact .ct-strip__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 26px;
  }
}

@media (min-width: 960px) {
  .page-contact .ct-hours__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 56px;
    align-items: start;
  }

  .page-contact .ct-faq {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: 56px;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-channel {
    transition: none;
  }
}
<<<END>>>