.page-contact {
  --ct-card-bg: rgba(10, 43, 45, .42);
  --ct-card-bg-hover: rgba(10, 43, 45, .72);
  --ct-border: 1px solid rgba(38, 48, 67, .9);
  --ct-radius: 4px;
  padding-bottom: 12px;
}

.page-contact img {
  max-width: 100%;
  height: auto;
}

.page-contact .ct-num {
  font-family: var(--sf-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -.01em;
}

.page-contact .ct-num-label {
  margin: 0;
  font-family: var(--sf-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--sf-cyan);
}

.page-contact .ct-h2 {
  margin: 10px 0 0;
  font-family: var(--sf-sans);
  font-weight: 800;
  font-size: clamp(24px, 4.6vw, 34px);
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--sf-text);
}

.page-contact .ct-lead {
  margin: 14px 0 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--sf-text-dim);
}

/* 面包屑 */
.page-contact .sf-crumbs {
  padding-top: 20px;
}

.page-contact .sf-crumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--sf-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--sf-text-dim);
}

.page-contact .sf-crumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--sf-steel);
}

.page-contact .sf-crumbs a {
  color: var(--sf-text-dim);
  text-decoration: none;
}

.page-contact .sf-crumbs a:hover {
  color: var(--sf-cyan);
}

.page-contact .sf-crumbs [aria-current="page"] {
  color: var(--sf-cyan);
}

/* 首屏 */
.page-contact .ct-hero {
  padding-block: 34px 44px;
  border-bottom: var(--sf-line-soft);
  background:
    radial-gradient(120% 100% at 100% 0%, rgba(24, 19, 56, .8), transparent 60%),
    linear-gradient(180deg, rgba(10, 43, 45, .32), transparent 78%);
}

.page-contact .ct-hero__inner {
  display: grid;
  gap: 30px;
}

.page-contact .ct-hero h1 {
  margin: 14px 0 0;
  max-width: 17ch;
  font-family: var(--sf-sans);
  font-weight: 800;
  font-size: clamp(31px, 7.2vw, 56px);
  line-height: 1.08;
  letter-spacing: -.025em;
  color: var(--sf-text);
}

.page-contact .ct-hero__lead {
  margin: 18px 0 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--sf-text-dim);
}

.page-contact .ct-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .ct-copy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border: var(--sf-line);
  border-radius: var(--ct-radius);
  background: rgba(6, 10, 19, .62);
  color: var(--sf-text);
  font-family: var(--sf-sans);
  font-size: 14px;
  line-height: 1.2;
  cursor: pointer;
  transition: border-color .25s var(--sf-ease), color .25s var(--sf-ease);
}

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

.page-contact .ct-copy[data-copied] {
  border-color: var(--sf-cyan);
  color: var(--sf-cyan);
}

.page-contact .ct-hero__facts {
  margin: 0;
  display: grid;
  border-top: var(--sf-line);
}

.page-contact .ct-hero__facts > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-bottom: var(--sf-line-soft);
}

.page-contact .ct-hero__facts dt {
  font-family: var(--sf-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--sf-text-dim);
}

.page-contact .ct-hero__facts dd {
  margin: 0;
  font-family: var(--sf-mono);
  font-size: 15px;
  color: var(--sf-text);
  text-align: right;
}

/* 章节基础间距 */
.page-contact .sf-section {
  padding-block: 54px;
}

/* 联系渠道 */
.page-contact .ct-channels {
  background: linear-gradient(180deg, rgba(10, 43, 45, .55), rgba(6, 10, 19, 0) 84%);
}

.page-contact .ct-channels__grid {
  display: grid;
  gap: 26px;
  margin-top: 34px;
}

.page-contact .ct-channels__list {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-contact .ct-channel {
  padding: 22px 22px 20px;
  border: var(--ct-border);
  border-left: 2px solid var(--sf-steel);
  border-radius: var(--ct-radius);
  background: var(--ct-card-bg);
  box-shadow: var(--sf-shadow);
  transition: background .3s var(--sf-ease);
}

.page-contact .ct-channel:hover {
  background: var(--ct-card-bg-hover);
}

.page-contact .ct-channel--mail {
  border-left-color: var(--sf-cyan);
}

.page-contact .ct-channel--phone {
  border-left-color: var(--sf-orange);
}

.page-contact .ct-channel--addr {
  border-left-color: var(--sf-amber);
}

.page-contact .ct-channel__value {
  margin: 10px 0 0;
  font-size: clamp(18px, 4vw, 23px);
  line-height: 1.35;
  color: var(--sf-text);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .ct-channel__value--addr {
  font-family: var(--sf-sans);
  font-size: 18px;
  line-height: 1.6;
}

.page-contact .ct-channel__note {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--sf-text-dim);
}

.page-contact .ct-channel__link {
  display: inline-block;
  margin-top: 14px;
  padding-bottom: 2px;
  font-family: var(--sf-mono);
  font-size: 13px;
  color: var(--sf-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 244, 212, .42);
}

.page-contact .ct-channel__link:hover {
  color: var(--sf-text);
}

.page-contact .ct-channels__media {
  margin: 0;
  border: var(--ct-border);
  border-radius: var(--ct-radius);
  overflow: hidden;
  background: var(--sf-indigo);
}

.page-contact .ct-channels__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(1.05) contrast(1.02);
}

.page-contact .ct-channels__media figcaption {
  padding: 12px 16px;
  border-top: var(--sf-line-soft);
  font-family: var(--sf-mono);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: .03em;
  color: var(--sf-text-dim);
}

/* 咨询分类 */
.page-contact .ct-topics__grid {
  display: grid;
  gap: 16px;
  margin-top: 34px;
}

.page-contact .ct-topic {
  padding: 0 20px;
  border: var(--ct-border);
  border-radius: var(--ct-radius);
  background: rgba(24, 19, 56, .48);
  transition: background .3s var(--sf-ease), border-color .3s var(--sf-ease);
}

.page-contact .ct-topic:hover {
  border-color: rgba(57, 244, 212, .42);
}

.page-contact .ct-topic[open] {
  background: rgba(24, 19, 56, .82);
  border-color: rgba(57, 244, 212, .34);
}

.page-contact .ct-topic__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
  padding: 20px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .ct-topic__tag {
  flex: none;
  padding: 4px 10px;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-family: var(--sf-mono);
  font-size: 11px;
  letter-spacing: .08em;
  background: transparent;
}

.page-contact .ct-topic__tag--fix {
  color: var(--sf-cyan);
}

.page-contact .ct-topic__tag--coop {
  color: var(--sf-orange);
}

.page-contact .ct-topic__tag--data {
  color: var(--sf-amber);
}

.page-contact .ct-topic__tag--idea {
  color: var(--sf-text-dim);
}

.page-contact .ct-topic__title {
  flex: 1 1 140px;
  font-family: var(--sf-sans);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--sf-text);
}

.page-contact .ct-topic__toggle {
  position: relative;
  flex: none;
  margin-left: auto;
  width: 18px;
  height: 18px;
  border: 1px solid var(--sf-steel);
  border-radius: 50%;
}

.page-contact .ct-topic__toggle::before,
.page-contact .ct-topic__toggle::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--sf-cyan);
  transform: translate(-50%, -50%);
}

.page-contact .ct-topic__toggle::before {
  width: 8px;
  height: 1px;
}

.page-contact .ct-topic__toggle::after {
  width: 1px;
  height: 8px;
  transition: opacity .2s var(--sf-ease);
}

.page-contact .ct-topic[open] .ct-topic__toggle::after {
  opacity: 0;
}

.page-contact .ct-topic__body {
  padding: 16px 0 22px;
  border-top: var(--sf-line-soft);
}

.page-contact .ct-topic__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--sf-text-dim);
}

.page-contact .ct-topic__body .sf-eyebrow {
  margin: 16px 0 0;
}

.page-contact .ct-topic__list {
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-contact .ct-topic__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--sf-text);
}

.page-contact .ct-topic__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 6px;
  height: 1px;
  background: var(--sf-cyan);
}

/* 截图模板 */
.page-contact .ct-shot {
  border-top: var(--sf-line-soft);
  background: linear-gradient(180deg, rgba(24, 19, 56, .62), rgba(6, 10, 19, 0) 88%);
}

.page-contact .ct-shot__grid {
  display: grid;
  gap: 30px;
}

.page-contact .ct-shot__media {
  margin: 0;
  border: var(--ct-border);
  border-radius: var(--ct-radius);
  overflow: hidden;
  background: var(--sf-night);
}

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

.page-contact .ct-shot__list {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 15px;
  counter-reset: shot;
}

.page-contact .ct-shot__list li {
  position: relative;
  counter-increment: shot;
  padding-left: 42px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--sf-text-dim);
}

.page-contact .ct-shot__list li::before {
  content: counter(shot, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  font-family: var(--sf-mono);
  font-size: 13px;
  color: var(--sf-cyan);
  letter-spacing: .06em;
}

.page-contact .ct-shot__list strong {
  display: block;
  margin-bottom: 2px;
  font-family: var(--sf-sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--sf-text);
}

/* 合作流程 */
.page-contact .ct-flow {
  background:
    linear-gradient(180deg, rgba(43, 13, 24, .55), rgba(6, 10, 19, 0) 76%);
}

.page-contact .ct-flow__steps {
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 26px;
}

.page-contact .ct-step {
  position: relative;
  padding-left: 20px;
  border-left: 1px solid var(--sf-steel);
}

.page-contact .ct-step::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 6px;
  width: 7px;
  height: 7px;
  background: var(--sf-cyan);
}

.page-contact .ct-step__num {
  display: block;
  font-family: var(--sf-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--sf-orange);
}

.page-contact .ct-step__title {
  margin: 8px 0 0;
  font-family: var(--sf-sans);
  font-size: 17px;
  font-weight: 700;
  color: var(--sf-text);
}

.page-contact .ct-step p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--sf-text-dim);
}

.page-contact .ct-flow__cta {
  margin: 30px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--sf-text-dim);
}

.page-contact .ct-flow__cta a {
  color: var(--sf-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 244, 212, .45);
}

.page-contact .ct-flow__cta a:hover {
  color: var(--sf-text);
}

/* 高频疑问 */
.page-contact .ct-help__list {
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  border-top: var(--sf-line);
}

.page-contact .ct-help__list li {
  display: grid;
  gap: 4px;
  padding: 18px 0;
  border-bottom: var(--sf-line-soft);
}

.page-contact .ct-help__list a {
  font-family: var(--sf-sans);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--sf-text);
  text-decoration: none;
}

.page-contact .ct-help__list a:hover {
  color: var(--sf-cyan);
}

.page-contact .ct-help__list span {
  font-size: 14px;
  line-height: 1.7;
  color: var(--sf-text-dim);
}

.page-contact .ct-help__foot {
  margin: 24px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--sf-text-dim);
}

.page-contact .ct-help__foot a {
  color: var(--sf-text);
  text-decoration: none;
  border-bottom: 1px solid var(--sf-steel);
}

.page-contact .ct-help__foot a:hover {
  color: var(--sf-cyan);
  border-bottom-color: var(--sf-cyan);
}

@media (min-width: 760px) {
  .page-contact .ct-hero__lead {
    font-size: 16px;
  }

  .page-contact .sf-section {
    padding-block: 64px;
  }

  .page-contact .ct-help__list li {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: baseline;
    gap: 24px;
  }
}

@media (min-width: 960px) {
  .page-contact .sf-crumbs {
    padding-top: 26px;
  }

  .page-contact .ct-hero {
    padding-block: 44px 56px;
  }

  .page-contact .ct-hero__inner {
    grid-template-columns: minmax(0, 1.45fr) minmax(260px, .55fr);
    align-items: end;
    gap: 52px;
  }

  .page-contact .sf-section {
    padding-block: 80px;
  }

  .page-contact .ct-channels__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: 40px;
    align-items: start;
  }

  .page-contact .ct-topics__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

  .page-contact .ct-shot__grid {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    gap: 48px;
    align-items: center;
  }

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

  .page-contact .ct-step {
    padding-left: 0;
    padding-top: 20px;
    border-left: 0;
    border-top: 1px solid var(--sf-steel);
  }

  .page-contact .ct-step::before {
    left: 0;
    top: -4px;
  }
}

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