.page-contact {
  --co-cardgap: 22px;
  background-color: var(--paper);
  color: var(--ink);
  padding-bottom: 10px;
}

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

.page-contact .breadcrumb {
  padding: 18px 0 2px;
}

/* ---------- 页首 ---------- */
.page-contact .co-intro {
  padding-top: 14px;
}

.page-contact .page-head {
  max-width: 48em;
}

.page-contact .page-head .h1 {
  max-width: 22ch;
  margin: 0;
}

.page-contact .page-head .lead {
  margin: 16px 0 0;
  max-width: 42em;
}

/* ---------- 通用小节标题 ---------- */
.page-contact .co-head {
  display: grid;
  gap: 10px;
  margin: 0 0 26px;
}

.page-contact .co-head > * {
  margin: 0;
}

.page-contact .co-head__sub {
  max-width: 46em;
  color: #4C5257;
  line-height: 1.75;
}

.page-contact .co-inline-link {
  color: var(--pitch);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 2px;
}

.page-contact .co-inline-link:hover {
  color: var(--clay);
}

.page-contact .co-inline-link--dark {
  color: var(--lime);
}

.page-contact .co-inline-link--dark:hover {
  color: var(--paper);
}

/* ---------- 合作类型配图 ---------- */
.page-contact .co-figure {
  margin: 0 0 26px;
  border: 3px solid var(--ink);
  box-shadow: var(--shadow-hard);
  background: var(--deep);
  overflow: hidden;
}

.page-contact .co-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 合作类型卡片 ---------- */
.page-contact .co-coop {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--co-cardgap);
}

.page-contact .co-coop__card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 26px 22px 26px 30px;
  background-color: var(--paper);
  border: 3px solid var(--ink);
  box-shadow: var(--shadow-hard-sm);
  transition: transform var(--t) ease, box-shadow var(--t) ease;
}

.page-contact .co-coop__card::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 7px;
  background-color: var(--pitch);
}

.page-contact .co-coop__card:nth-child(2)::before {
  background-color: var(--moss);
}

.page-contact .co-coop__card:nth-child(3)::before {
  background-color: var(--clay);
}

.page-contact .co-coop__card:nth-child(4)::before {
  background-color: var(--deep);
}

.page-contact .co-coop__card:hover,
.page-contact .co-coop__card:focus-within {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-hard);
}

.page-contact .co-coop__no {
  margin: 0;
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--clay);
  font-variant-numeric: tabular-nums;
}

.page-contact .co-coop__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .co-coop__body {
  margin: 0;
  line-height: 1.75;
}

.page-contact .co-coop__meta {
  margin: 4px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--silver);
  font-size: 14px;
  line-height: 1.7;
  color: #4C5257;
}

/* ---------- 三步流程 ---------- */
.page-contact .co-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-contact .co-steps__item {
  position: relative;
  padding: 24px 22px 26px;
  border: 3px solid var(--ink);
  background-color: var(--paper);
  box-shadow: var(--shadow-hard-sm);
  transition: transform var(--t) ease, box-shadow var(--t) ease;
}

.page-contact .co-steps__item:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-hard);
}

.page-contact .co-steps__num {
  display: inline-block;
  margin-bottom: 14px;
  padding: 4px 9px;
  background-color: var(--ink);
  color: var(--paper);
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.page-contact .co-steps__title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-size: 19px;
  font-weight: 800;
  color: var(--pitch);
}

.page-contact .co-steps__body {
  margin: 0;
  line-height: 1.75;
}

/* ---------- 准备清单 ---------- */
.page-contact .co-prep {
  border-top: 3px solid var(--ink);
}

.page-contact .co-prep__row {
  display: grid;
  gap: 10px;
  padding: 22px 0;
  border-bottom: 1px solid var(--silver);
}

.page-contact .co-prep__key {
  margin: 0;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--pitch);
}

.page-contact .co-prep__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.page-contact .co-prep__list li {
  position: relative;
  padding-left: 18px;
  line-height: 1.75;
}

.page-contact .co-prep__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 7px;
  height: 7px;
  background-color: var(--clay);
}

/* ---------- 联系渠道 ---------- */
.page-contact .co-channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-contact .co-channels__panel {
  padding: 30px 26px 32px;
  background-color: var(--deep);
  color: var(--paper);
  border: 3px solid var(--ink);
  box-shadow: var(--shadow-hard);
}

.page-contact .co-channels__list {
  margin: 0;
  display: grid;
  gap: 18px;
}

.page-contact .co-channels__item {
  display: grid;
  gap: 6px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(198, 203, 208, 0.3);
}

.page-contact .co-channels__item:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.page-contact .co-channels__key {
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.16em;
  color: var(--moss);
}

.page-contact .co-channels__val {
  margin: 0;
  font-family: var(--font-data);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--lime);
  font-variant-numeric: tabular-nums;
  word-break: break-all;
}

.page-contact .co-channels__note {
  margin: 24px 0 0;
  padding-top: 18px;
  border-top: 1px solid rgba(198, 203, 208, 0.3);
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver);
}

.page-contact .co-channels__figure {
  margin: 0;
  border: 3px solid var(--ink);
  box-shadow: var(--shadow-hard);
  background-color: var(--deep);
  overflow: hidden;
}

.page-contact .co-channels__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 在线时段 ---------- */
.page-contact .co-hours {
  padding: 26px 0 26px 24px;
  border-left: 7px solid var(--alert);
  background: linear-gradient(90deg, rgba(224, 96, 28, 0.09), rgba(224, 96, 28, 0) 72%);
}

.page-contact .co-hours__tag {
  display: inline-block;
  margin: 0 0 14px;
  padding: 3px 10px;
  border: 2px solid var(--alert);
  color: var(--alert);
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.page-contact .co-hours .h2 {
  margin: 0 0 14px;
}

.page-contact .co-hours__body {
  margin: 0 0 12px;
  max-width: 44em;
  line-height: 1.8;
}

.page-contact .co-hours__body:last-child {
  margin-bottom: 0;
}

.page-contact .co-num {
  font-family: var(--font-data);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--clay);
}

/* ---------- 到访与邮寄 ---------- */
.page-contact .co-address {
  position: relative;
  padding: 30px 24px 32px;
  border: 3px solid var(--ink);
  background-color: var(--paper);
  box-shadow: var(--shadow-hard-sm);
}

.page-contact .co-address::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 72px;
  height: 8px;
  background-color: var(--clay);
}

.page-contact .co-address .h2 {
  margin: 0 0 16px;
}

.page-contact .co-address__body {
  display: grid;
  gap: 4px;
  margin: 0 0 16px;
  font-family: var(--font-data);
  font-size: 17px;
  font-style: normal;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.page-contact .co-address__text {
  margin: 0;
  max-width: 44em;
  line-height: 1.8;
}

/* ---------- 下一步 ---------- */
.page-contact .co-cta {
  display: grid;
  gap: 26px;
  padding: 34px 26px 36px;
  background-color: var(--deep);
  color: var(--paper);
  border: 3px solid var(--ink);
  box-shadow: var(--shadow-hard);
}

.page-contact .co-cta .h2 {
  margin: 0 0 12px;
  color: var(--paper);
}

.page-contact .co-cta p {
  margin: 0;
  max-width: 46em;
  line-height: 1.8;
  color: var(--silver);
}

.page-contact .co-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .co-cta .btn--ghost {
  color: var(--paper);
  border-color: var(--paper);
}

.page-contact .co-cta .btn--ghost:hover,
.page-contact .co-cta .btn--ghost:focus-visible {
  background-color: var(--paper);
  color: var(--deep);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .page-head .lead {
    font-size: 17px;
  }

  .page-contact .co-prep__row {
    grid-template-columns: 210px 1fr;
    gap: 30px;
    align-items: start;
  }

  .page-contact .co-cta {
    padding: 40px 34px 42px;
  }
}

@media (min-width: 820px) {
  .page-contact .co-coop {
    grid-template-columns: repeat(2, 1fr);
    gap: 26px;
  }

  .page-contact .co-channels {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 30px;
    align-items: start;
  }

  .page-contact .co-channels__panel {
    padding: 36px 32px 38px;
  }

  .page-contact .co-address {
    padding: 38px 34px 40px;
  }

  .page-contact .co-cta {
    grid-template-columns: 1.4fr 1fr;
    align-items: center;
    gap: 34px;
  }
}

@media (min-width: 900px) {
  .page-contact .co-steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 34px;
  }

  .page-contact .co-steps__item + .co-steps__item::before {
    content: "";
    position: absolute;
    left: -22px;
    top: 48px;
    width: 10px;
    height: 10px;
    border-top: 3px solid var(--pitch);
    border-right: 3px solid var(--pitch);
    transform: rotate(45deg);
  }

  .page-contact .co-figure {
    margin-bottom: 34px;
  }
}
<<<END>>>