.page-contact {
  overflow-x: clip;
  color: var(--paper);
  font-family: var(--font-body);
  line-height: 1.75;
}

/* ---------- 页头 ---------- */
.page-contact .page-head {
  max-width: 78ch;
  padding: clamp(24px, 5vw, 52px) 0 clamp(16px, 3vw, 26px);
}

.page-contact .page-head__title {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  font-size: clamp(1.9rem, 5vw, 3.5rem);
  line-height: 1.08;
  margin: 12px 0 16px;
  text-wrap: balance;
}

.page-contact .page-head__lede {
  font-size: clamp(1rem, 1.6vw, 1.1rem);
  color: var(--steel);
  max-width: 62ch;
  margin: 0;
}

.page-contact .contact-banner {
  margin: 0 0 clamp(8px, 2vw, 20px);
}

.page-contact .figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.62) contrast(1.02);
}

.page-contact .contact-banner .figure__frame {
  border: var(--frame);
  background: var(--ink-deep);
}

.page-contact .contact-banner .figure__cap {
  font-size: 13px;
  color: var(--steel);
  margin-top: 8px;
}

/* ---------- 三条路径 ---------- */
.page-contact .envelope-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: clamp(18px, 3vw, 30px);
}

.page-contact .envelope {
  position: relative;
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--line);
  padding: 26px 22px 22px;
  box-shadow: var(--shadow);
  transition: transform .24s var(--ease), box-shadow .24s var(--ease);
}

.page-contact .envelope::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 26px 26px 0 0;
  border-color: var(--archive) transparent transparent transparent;
}

.page-contact .envelope:hover {
  transform: translateY(-4px);
}

.page-contact .envelope__title {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.01em;
  font-size: 1.35rem;
  margin: 12px 0 8px;
}

.page-contact .envelope__desc {
  margin: 0 0 14px;
  color: #2b3b38;
  font-size: .95rem;
}

.page-contact .envelope__meta {
  margin: 0 0 8px;
  font-size: .875rem;
  line-height: 1.6;
  color: #2b3b38;
  border-top: 1px solid rgba(14, 42, 38, .14);
  padding-top: 8px;
  word-break: break-word;
}

.page-contact .envelope__meta .mono {
  color: #6a7876;
  margin-right: 6px;
}

.page-contact .envelope a {
  color: #0b6b5f;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.page-contact .envelope a:hover {
  color: var(--orange);
}

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

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

/* ---------- 更正申请单 ---------- */
.page-contact .desk {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  margin-top: clamp(18px, 3vw, 30px);
}

.page-contact .desk__sheet {
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.page-contact .desk__sheet-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 14px 20px;
  border-bottom: 1px solid rgba(14, 42, 38, .18);
  background: rgba(228, 211, 163, .28);
}

.page-contact .desk__sheet-head .mono {
  font-size: 12px;
  letter-spacing: .14em;
  color: #4a5a57;
}

.page-contact .field-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .field {
  display: grid;
  grid-template-columns: 1fr;
  gap: 5px;
  padding: 13px 20px;
  border-top: 1px solid rgba(14, 42, 38, .12);
}

.page-contact .field:first-child {
  border-top: 0;
}

.page-contact .field__label {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
}

.page-contact .field__label input[type="checkbox"] {
  width: 17px;
  height: 17px;
  margin: 0;
  accent-color: var(--orange);
  flex: none;
}

.page-contact .field__name {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: .95rem;
  letter-spacing: .02em;
}

.page-contact .field__hint {
  font-size: .82rem;
  color: #5c6b68;
  line-height: 1.6;
}

.page-contact .desk__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  padding: 18px 20px 22px;
  border-top: 1px solid rgba(14, 42, 38, .18);
}

.page-contact .desk__foot-note {
  font-size: .82rem;
  color: #5c6b68;
}

.page-contact .desk__side {
  border: var(--frame);
  background: var(--ink-deep);
  padding: 22px 20px;
}

.page-contact .desk__side-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  margin: 0 0 18px;
  color: var(--paper);
}

.page-contact .flow {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .flow__item {
  position: relative;
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 14px;
  padding-bottom: 18px;
}

.page-contact .flow__item::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 30px;
  bottom: 0;
  width: 1px;
  background: var(--line);
}

.page-contact .flow__item:last-child {
  padding-bottom: 0;
}

.page-contact .flow__item:last-child::before {
  display: none;
}

.page-contact .flow__idx {
  position: relative;
  z-index: 1;
  width: 31px;
  height: 31px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
  border: 1px solid var(--line);
  background: var(--ink-deep);
}

.page-contact .flow__title {
  margin: 4px 0 2px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .98rem;
  color: var(--paper);
}

.page-contact .flow__text {
  margin: 0;
  font-size: .85rem;
  color: var(--steel);
  line-height: 1.65;
}

/* ---------- 合作 ---------- */
.page-contact .collab {
  margin-top: clamp(18px, 3vw, 30px);
  border-top: 1px solid var(--line);
}

.page-contact .collab__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .collab__idx {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--orange);
}

.page-contact .collab__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--paper);
}

.page-contact .collab__body p {
  margin: 0 0 8px;
  font-size: .92rem;
  color: var(--steel);
}

.page-contact .collab__need {
  font-size: .85rem !important;
  color: var(--archive) !important;
}

.page-contact .collab__need .mono {
  color: var(--steel);
  margin-right: 6px;
}

/* ---------- 通道说明 ---------- */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: clamp(18px, 3vw, 30px);
}

.page-contact .channel-card {
  border: var(--frame);
  background: var(--lift);
  padding: 22px 20px;
  transition: transform .24s var(--ease), border-color .24s var(--ease);
}

.page-contact .channel-card:hover {
  transform: translateY(-4px);
  border-color: var(--cyan);
}

.page-contact .channel-card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  margin: 0 0 10px;
  color: var(--paper);
}

.page-contact .channel-card p {
  margin: 0 0 12px;
  font-size: .9rem;
  color: rgba(243, 240, 230, .84);
}

.page-contact .bullet {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .bullet li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 6px;
  font-size: .85rem;
  color: var(--steel);
}

.page-contact .bullet li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 7px;
  height: 1px;
  background: var(--cyan);
}

.page-contact .channel-card__link {
  margin: 16px 0 0 !important;
}

/* ---------- 地址与时段 ---------- */
.page-contact .section--tail {
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-contact .address {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: clamp(18px, 3vw, 30px);
}

.page-contact .address__card {
  border: var(--frame);
  background-color: var(--ink-deep);
  background-image:
    linear-gradient(rgba(60, 232, 206, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(60, 232, 206, .07) 1px, transparent 1px);
  background-size: 28px 28px;
  padding: 24px 22px;
}

.page-contact .address__line {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.05rem, 2.4vw, 1.35rem);
  letter-spacing: -0.01em;
  line-height: 1.4;
  margin: 8px 0 18px;
  color: var(--paper);
}

.page-contact .address__list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
}

.page-contact .address__list li {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 9px 0;
  border-top: 1px solid var(--line);
  font-size: .9rem;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .address__list .mono {
  color: var(--steel);
  font-size: 12px;
  letter-spacing: .12em;
  min-width: 44px;
}

.page-contact .address__list a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(60, 232, 206, .4);
}

.page-contact .address__list a:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-contact .address__note {
  margin: 0;
  font-size: .84rem;
  color: var(--steel);
  border-left: 2px solid var(--archive);
  padding-left: 12px;
}

.page-contact .address__figure {
  margin: 0;
  border: var(--frame);
  background: var(--ink-deep);
  padding: 12px;
}

.page-contact .address__figure .figure__cap {
  font-size: 12px;
  color: var(--steel);
  margin-top: 10px;
}

.page-contact .slots {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 22px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .slot {
  background: var(--ink);
  padding: 18px;
  position: relative;
}

.page-contact .slot::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--orange));
  opacity: .7;
}

.page-contact .slot__label {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--orange);
}

.page-contact .slot__text {
  margin: 0;
  font-size: .88rem;
  color: var(--steel);
  line-height: 1.7;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .field {
    grid-template-columns: 172px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }

  .page-contact .slots {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-contact .envelope-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-contact .envelope:nth-child(2) {
    margin-top: 38px;
  }

  .page-contact .envelope:nth-child(3) {
    margin-top: 74px;
  }

  .page-contact .desk {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: 28px;
    align-items: start;
  }

  .page-contact .collab__row {
    grid-template-columns: 62px 210px minmax(0, 1fr);
    gap: 28px;
    align-items: start;
  }

  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .address {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: 28px;
    align-items: start;
  }
}

@media (min-width: 1100px) {
  .page-contact .page-head {
    padding-top: clamp(34px, 4vw, 66px);
  }
}