.page-contact {
  --cc-gap: 22px;
  padding-bottom: 72px;
}

/* 面包屑与首屏 */
.page-contact .breadcrumb {
  margin: 20px 0 14px;
}

.page-contact .contact-hero {
  position: relative;
  padding: 26px 20px 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(120% 90% at 100% 0, rgba(201, 162, 75, 0.18), transparent 62%),
    linear-gradient(155deg, #123B33 0%, #0B2B26 56%, #081F1B 100%);
  overflow: hidden;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  right: -70px;
  bottom: -90px;
  width: 220px;
  height: 220px;
  border: 1px dashed var(--line-strong);
  transform: rotate(-12deg);
  pointer-events: none;
}

.page-contact .contact-hero .eyebrow {
  color: var(--gold-soft);
}

.page-contact .contact-hero h1 {
  margin: 10px 0 0;
  font-size: clamp(1.75rem, 1.15rem + 2.7vw, 3.1rem);
  line-height: 1.14;
  letter-spacing: 0.02em;
  font-weight: 800;
  color: var(--paper);
}

.page-contact .contact-hero__lede {
  margin-top: 16px;
  max-width: 34ch;
  position: relative;
  z-index: 1;
}

.page-contact .quick-strip {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 24px;
  position: relative;
  z-index: 1;
}

.page-contact .quick-item {
  padding: 12px 14px;
  border-left: 2px solid var(--gold);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: rgba(8, 31, 27, 0.58);
}

.page-contact .quick-item__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--jade);
}

.page-contact .quick-item__value {
  display: block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 0.94rem;
  letter-spacing: 0.01em;
  color: var(--gold-soft);
  overflow-wrap: anywhere;
  -webkit-user-select: all;
  user-select: all;
}

/* 主体两栏骨架 */
.page-contact .contact-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  margin-top: 34px;
}

.page-contact .contact-flow {
  min-width: 0;
}

.page-contact .toc__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--jade);
}

.page-contact .toc__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .toc__list a {
  display: block;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.86rem;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 180ms var(--ease), border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-contact .toc__list a:hover {
  color: var(--paper);
  border-color: var(--line-strong);
}

.page-contact .toc__list a[aria-current="location"] {
  color: var(--cyan);
  border-color: rgba(53, 224, 200, 0.55);
  background: rgba(53, 224, 200, 0.08);
}

/* 章节 */
.page-contact .flow-section {
  scroll-margin-top: 96px;
}

.page-contact .flow-section + .flow-section {
  margin-top: 36px;
  padding-top: 32px;
  border-top: 1px dashed var(--line);
}

.page-contact .section-note {
  margin: 16px 0 0;
  max-width: 58ch;
  font-size: 0.93rem;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-contact .link-inline {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 200, 0.4);
}

.page-contact .link-inline:hover {
  border-bottom-color: var(--cyan);
}

.page-contact .link-inline--dark {
  color: #1c5f53;
  border-bottom-color: rgba(28, 95, 83, 0.4);
}

/* 联系通道卡 */
.page-contact .channel-card {
  position: relative;
  margin-top: 20px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(18, 59, 51, 0.96), rgba(11, 43, 38, 0.96));
  box-shadow: var(--shadow-1);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 22px;
  width: 68px;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--cyan));
}

.page-contact .channel-row {
  padding: 20px 18px;
}

.page-contact .channel-row + .channel-row {
  border-top: 1px dashed var(--line);
}

.page-contact .channel-row__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-contact .channel-row__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-contact .channel-row__name {
  margin: 0;
  font-size: 1.06rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-contact .channel-row__value {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(0.95rem, 0.82rem + 0.7vw, 1.28rem);
  letter-spacing: 0.02em;
  color: var(--gold-soft);
  overflow-wrap: anywhere;
  -webkit-user-select: all;
  user-select: all;
}

.page-contact .channel-row__note {
  margin: 10px 0 0;
  max-width: 48ch;
  font-size: 0.94rem;
  line-height: 1.75;
  color: var(--text);
}

.page-contact .channel-row__hint {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.03em;
  color: var(--jade);
}

.page-contact .contact-map {
  margin-top: 20px;
}

/* 纠错提交 */
.page-contact .field-panel {
  margin-top: 20px;
  padding: 6px 0;
  background: var(--paper);
  color: var(--char);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
}

.page-contact .field-list {
  display: block;
}

.page-contact .field-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 16px 18px;
}

.page-contact .field-row + .field-row {
  border-top: 1px solid rgba(16, 21, 18, 0.12);
}

.page-contact .field-row__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: #5c6b62;
}

.page-contact .field-row__value {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--char);
}

.page-contact .field-row__hint {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.65;
  color: #6b7a71;
}

.page-contact .mono-val {
  font-family: var(--font-mono);
  color: #1c4f45;
}

/* 合作与转载 */
.page-contact .coop-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 20px;
}

.page-contact .coop-item {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(18, 59, 51, 0.55);
}

.page-contact .coop-item--accent {
  border-color: rgba(240, 138, 60, 0.45);
  background: rgba(240, 138, 60, 0.08);
}

.page-contact .coop-item h3 {
  margin: 0 0 8px;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-contact .coop-item p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--text-dim);
}

/* 地址与备案 */
.page-contact .office-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 20px;
}

.page-contact .office-card {
  padding: 20px 18px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--felt);
  box-shadow: var(--shadow-1);
}

.page-contact .office-card__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--jade);
}

.page-contact .office-card__value {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(0.95rem, 0.85rem + 0.5vw, 1.14rem);
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: var(--gold-soft);
  overflow-wrap: anywhere;
}

.page-contact .office-card__note {
  margin: 12px 0 0;
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--text-dim);
}

/* 回复时段 */
.page-contact .reply-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  margin-top: 20px;
}

.page-contact .reply-steps {
  margin: 0;
  padding: 0 0 0 16px;
  list-style: none;
  border-left: 1px dashed var(--line-strong);
}

.page-contact .reply-steps li {
  position: relative;
  padding: 0 0 22px 14px;
}

.page-contact .reply-steps li:last-child {
  padding-bottom: 0;
}

.page-contact .reply-steps li::before {
  content: "";
  position: absolute;
  left: -20px;
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--gold);
}

.page-contact .reply-steps strong {
  display: block;
  font-size: 0.98rem;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-contact .reply-steps span {
  display: block;
  margin-top: 6px;
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--text-dim);
}

.page-contact .reply-media {
  margin: 0;
}

/* 平板及以上 */
@media (min-width: 720px) {
  .page-contact .contact-hero {
    padding: 34px 32px 38px;
  }

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

  .page-contact .channel-row {
    padding: 22px 24px;
  }

  .page-contact .field-row {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 6px 20px;
    align-items: start;
    padding: 18px 24px;
  }

  .page-contact .field-row__label {
    padding-top: 3px;
  }

  .page-contact .field-row__hint {
    grid-column: 2;
  }

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

/* 桌面：左侧章节索引 + 非对称主栏 */
@media (min-width: 1024px) {
  .page-contact .contact-body {
    grid-template-columns: 198px minmax(0, 1fr);
    gap: 36px;
    align-items: start;
  }

  .page-contact .toc {
    position: sticky;
    top: 96px;
  }

  .page-contact .toc__title {
    margin-bottom: 14px;
  }

  .page-contact .toc__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 2px;
  }

  .page-contact .toc__list a {
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0 var(--radius) var(--radius) 0;
    padding: 8px 12px;
    font-size: 0.9rem;
  }

  .page-contact .toc__list a[aria-current="location"] {
    border-left-color: var(--cyan);
    background: rgba(53, 224, 200, 0.09);
  }

  .page-contact .reply-wrap {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
    gap: 30px;
  }

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

  .page-contact .coop-item--accent {
    grid-column: span 3;
  }

  .page-contact .office-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .toc__list a {
    transition: none;
  }
}
</