.page-contact {
  --ct-pad: clamp(1.25rem, 3.5vw, 2.25rem);
  --ct-gap: clamp(1.5rem, 4vw, 3rem);
  background: var(--ink);
  color: var(--cream);
  font-family: var(--ff);
  overflow-x: clip;
}

.page-contact .ct-crumb {
  padding-top: clamp(1rem, 2.5vw, 1.75rem);
}

.page-contact .ct-h2 {
  margin: 0 0 .75rem;
  font-size: clamp(1.45rem, 3.6vw, 2.3rem);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: .01em;
  color: var(--cream);
}

.page-contact .ct-sub {
  margin: 0 0 1.5rem;
  max-width: 44ch;
  font-size: .95rem;
  line-height: 1.8;
  color: var(--moss);
}

/* 首屏 */
.page-contact .ct-hero {
  padding-block: clamp(1.5rem, 4vw, 3rem) clamp(2.5rem, 6vw, 5rem);
}

.page-contact .ct-hero__grid {
  display: grid;
  gap: var(--ct-gap);
}

.page-contact .ct-hero__title {
  margin: 0 0 1.25rem;
  font-size: clamp(2.35rem, 8vw, 4.4rem);
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: .01em;
  color: var(--cream);
}

.page-contact .ct-hero__title em {
  font-style: normal;
  color: var(--gold);
}

.page-contact .ct-hero__intro {
  margin: 0 0 1.5rem;
  max-width: 40ch;
  font-size: clamp(.95rem, 1.6vw, 1.05rem);
  line-height: 1.85;
  color: var(--cream);
  opacity: .88;
}

.page-contact .ct-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.page-contact .ct-hero__media {
  margin: 0;
  border: 1px solid var(--rule-soft);
}

.page-contact .ct-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

/* 通信台 */
.page-contact .ct-desk {
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
  border-top: 1px solid var(--rule-soft);
}

.page-contact .ct-desk__grid {
  display: grid;
  gap: var(--ct-gap);
}

.page-contact .ct-channels {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}

.page-contact .ct-channel {
  display: grid;
  gap: .4rem;
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--rule-soft);
  transition: border-color .2s var(--ease);
}

.page-contact .ct-channel:hover {
  border-bottom-color: var(--gold);
}

.page-contact .ct-channel__label {
  font-size: var(--fs-label);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-contact .ct-channel__value {
  font-size: clamp(1.15rem, 3.4vw, 1.8rem);
  font-weight: 400;
  line-height: 1.3;
  color: var(--cream);
  word-break: break-word;
}

.page-contact .ct-channel__note {
  max-width: 42ch;
  font-size: .88rem;
  line-height: 1.75;
  color: var(--moss);
}

.page-contact .ct-jump {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid var(--gold-line);
  padding-bottom: 2px;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-contact .ct-jump:hover {
  color: var(--gold-lt);
  border-bottom-color: var(--gold-lt);
}

/* 表单 */
.page-contact .ct-form {
  padding: var(--ct-pad);
  background: var(--ink-2);
  border: 1px solid var(--rule);
  border-radius: 2px;
}

.page-contact .ct-form__title {
  margin: 0 0 .5rem;
  font-size: clamp(1.15rem, 2.4vw, 1.4rem);
  font-weight: 400;
  line-height: 1.35;
  color: var(--cream);
}

.page-contact .ct-form__intro {
  margin: 0 0 1.25rem;
  font-size: .88rem;
  line-height: 1.75;
  color: var(--moss);
}

.page-contact .ct-topics {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: 1.4rem;
}

.page-contact .ct-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-contact .ct-pick {
  display: inline-flex;
  align-items: center;
  padding: .5rem .95rem;
  border: 1px solid var(--rule-soft);
  border-radius: 999px;
  font-size: .8rem;
  letter-spacing: .04em;
  color: var(--moss);
  cursor: pointer;
  transition: color .18s var(--ease), border-color .18s var(--ease), background-color .18s var(--ease);
}

.page-contact .ct-pick:hover {
  border-color: var(--gold-line);
  color: var(--cream);
}

.page-contact .ct-radio:checked + .ct-pick {
  border-color: var(--cyan);
  background: var(--cyan);
  color: var(--ink);
}

.page-contact .ct-radio:focus-visible + .ct-pick {
  outline: 2px solid var(--gold-lt);
  outline-offset: 2px;
}

.page-contact .ct-field {
  display: grid;
  gap: .35rem;
  margin-bottom: 1.1rem;
}

.page-contact .ct-field__label {
  font-size: var(--fs-label);
  letter-spacing: .12em;
  color: var(--gold);
}

.page-contact .ct-input {
  width: 100%;
  padding: .55rem 0;
  border: 0;
  border-bottom: 1px solid var(--rule);
  background: transparent;
  color: var(--cream);
  font: inherit;
  font-size: 1rem;
  transition: border-color .18s var(--ease);
}

.page-contact .ct-input::placeholder {
  color: var(--moss);
  opacity: .75;
}

.page-contact .ct-input:focus {
  outline: none;
  border-bottom-color: var(--gold);
}

.page-contact .ct-textarea {
  resize: vertical;
  min-height: 5.5rem;
  line-height: 1.7;
}

.page-contact .ct-submit {
  width: 100%;
  justify-content: center;
  margin-top: .35rem;
  border-bottom: 2px solid transparent;
  transition: border-color .2s var(--ease), background-color .2s var(--ease), color .2s var(--ease);
}

.page-contact .ct-submit:hover {
  border-bottom-color: var(--gold-lt);
}

.page-contact .ct-form__note {
  margin: 1rem 0 0;
  font-size: .78rem;
  line-height: 1.7;
  color: var(--moss);
  word-break: break-word;
}

/* 问题分流 */
.page-contact .ct-route {
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
  border-top: 1px solid var(--rule-soft);
}

.page-contact .ct-route__head {
  margin-bottom: clamp(1.5rem, 3vw, 2.25rem);
}

.page-contact .ct-route__list {
  display: grid;
  gap: .75rem;
}

.page-contact .ct-topic {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: .9rem;
  padding: 1rem 1.1rem;
  background: rgba(12, 53, 41, .45);
  border: 1px solid var(--rule-soft);
  border-radius: 2px;
  color: inherit;
  text-decoration: none;
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-contact .ct-topic:hover {
  border-color: var(--gold);
  background: rgba(12, 53, 41, .85);
}

.page-contact .ct-topic__num {
  font-family: var(--ff-num);
  font-size: .72rem;
  letter-spacing: .04em;
  color: var(--gold-line);
  padding-top: .15rem;
}

.page-contact .ct-topic__body strong {
  display: block;
  margin-bottom: .25rem;
  font-size: .98rem;
  font-weight: 500;
  color: var(--cream);
}

.page-contact .ct-topic__desc {
  display: block;
  font-size: .82rem;
  line-height: 1.7;
  color: var(--moss);
}

.page-contact .ct-topic__go {
  color: var(--gold);
  font-size: .9rem;
  line-height: 1.4;
  transition: color .18s var(--ease);
}

.page-contact .ct-topic:hover .ct-topic__go {
  color: var(--cyan);
}

/* 合作与回复节奏 */
.page-contact .ct-partner {
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
  border-top: 1px solid var(--rule-soft);
}

.page-contact .ct-partner__grid {
  display: grid;
  gap: var(--ct-gap);
  align-items: start;
}

.page-contact .ct-checklist {
  list-style: none;
  margin: 0 0 1.25rem;
  padding: 0;
  display: grid;
  gap: .85rem;
}

.page-contact .ct-checklist li {
  position: relative;
  padding-left: 1.4rem;
  font-size: .92rem;
  line-height: 1.8;
  color: var(--moss);
}

.page-contact .ct-checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 8px;
  height: 8px;
  background: var(--gold);
  transform: rotate(45deg);
}

.page-contact .ct-checklist strong {
  color: var(--cream);
  font-weight: 500;
}

.page-contact .ct-partner__note {
  margin: 0;
  padding-left: 1rem;
  border-left: 2px solid var(--gold-line);
  font-size: .88rem;
  line-height: 1.8;
  color: var(--gold-lt);
}

.page-contact .ct-rhythm {
  display: grid;
  gap: 1rem;
  padding: var(--ct-pad);
  background: var(--ink-3);
  border: 1px solid var(--rule);
  border-radius: 2px;
}

.page-contact .ct-rhythm__title {
  margin: 0;
  font-size: var(--fs-label);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-contact .ct-rhythm__item {
  padding-top: .9rem;
  border-top: 1px solid var(--rule-soft);
}

.page-contact .ct-rhythm__item:first-of-type {
  padding-top: 0;
  border-top: 0;
}

.page-contact .ct-rhythm__num {
  display: block;
  font-size: clamp(1.55rem, 4vw, 2.1rem);
  font-weight: 600;
  letter-spacing: .02em;
  line-height: 1.2;
  color: var(--cyan);
}

.page-contact .ct-rhythm__label {
  display: block;
  margin-top: .3rem;
  font-size: .84rem;
  line-height: 1.65;
  color: var(--moss);
}

.page-contact .ct-rhythm__foot {
  margin: 0;
  font-size: .8rem;
  line-height: 1.7;
  color: var(--moss);
}

/* 资料寄送 */
.page-contact .ct-ship {
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
  border-top: 1px solid var(--rule-soft);
}

.page-contact .ct-ship__grid {
  display: grid;
  gap: var(--ct-gap);
  align-items: center;
}

.page-contact .ct-ship__addr {
  margin: .5rem 0 1rem;
  font-size: clamp(1.15rem, 3vw, 1.65rem);
  font-weight: 400;
  line-height: 1.45;
  color: var(--gold-lt);
  letter-spacing: .01em;
}

.page-contact .ct-ship__hint {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem .75rem;
  margin: 0;
  max-width: 44ch;
  font-size: .86rem;
  line-height: 1.75;
  color: var(--moss);
}

.page-contact .ct-ship__media {
  margin: 0;
  border: 1px solid var(--rule-soft);
}

.page-contact .ct-ship__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* 信任条 */
.page-contact .ct-trust {
  margin-top: clamp(2rem, 5vw, 3.5rem);
  background: var(--ink-3);
  border-top: 1px solid var(--gold-line);
}

.page-contact .ct-trust__inner {
  display: grid;
  gap: 1.25rem;
  padding-block: clamp(2rem, 4.5vw, 3rem);
}

.page-contact .ct-trust__line {
  margin: 0;
  max-width: 52ch;
  font-size: clamp(1rem, 2.2vw, 1.2rem);
  line-height: 1.75;
  color: var(--cream);
}

.page-contact .ct-trust__links {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

/* 桌面端栅格 */
@media (min-width: 720px) {
  .page-contact .ct-route__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .9rem;
  }
}

@media (min-width: 840px) {
  .page-contact .ct-channel {
    grid-template-columns: 7.5rem minmax(0, 1fr);
    column-gap: 1.5rem;
    row-gap: .35rem;
    align-items: baseline;
  }

  .page-contact .ct-channel__label {
    grid-column: 1;
    grid-row: 1;
  }

  .page-contact .ct-channel__value {
    grid-column: 2;
    grid-row: 1;
  }

  .page-contact .ct-channel__note {
    grid-column: 2;
    grid-row: 2;
  }

  .page-contact .ct-trust__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 2rem;
  }
}

@media (min-width: 900px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .85fr);
    align-items: end;
    gap: clamp(2rem, 4vw, 3.5rem);
  }

  .page-contact .ct-ship__grid {
    grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
    gap: clamp(2rem, 5vw, 4rem);
  }
}

@media (min-width: 960px) {
  .page-contact .ct-desk__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    align-items: start;
    gap: clamp(2rem, 5vw, 4rem);
  }

  .page-contact .ct-form {
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
  }

  .page-contact .ct-partner__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: clamp(2rem, 5vw, 4rem);
  }
}

@media (min-width: 1120px) {
  .page-contact .ct-route__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-channel,
  .page-contact .ct-topic,
  .page-contact .ct-topic__go,
  .page-contact .ct-pick,
  .page-contact .ct-jump,
  .page-contact .ct-input,
  .page-contact .ct-submit {
    transition: none;
  }

  .page-contact .ct-form {
    position: static;
  }
}
<<<END>>>