.page-contact {
  --cc-gap: clamp(16px, 2.6vw, 32px);
  --cc-pad: clamp(16px, 2.4vw, 28px);
  background: var(--ink-900);
  color: var(--fog);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.75;
}

.page-contact .mono {
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, var(--font-num);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

.page-contact a {
  color: inherit;
}

.page-contact a:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}

.page-contact .contact-lede {
  margin: 0 0 clamp(16px, 2.2vw, 24px);
  font-size: clamp(15px, 1.6vw, 17px);
  color: var(--fog);
  max-width: 62ch;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  padding-top: clamp(14px, 2vw, 22px);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--fog-dim);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.page-contact .breadcrumb a {
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
}

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

/* ---------- 首屏分屏 ---------- */
.page-contact .contact-hero {
  padding: clamp(18px, 3vw, 36px) 0 clamp(36px, 6vw, 72px);
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--cc-gap);
  align-items: start;
}

.page-contact .contact-hero__figure {
  margin: 0 0 14px;
  border: 1px solid var(--rule);
  background: var(--ink-800);
  position: relative;
}

.page-contact .contact-hero__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.7);
}

.page-contact .contact-hero__caption {
  padding: 10px 14px;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--fog-dim);
  border-top: 1px solid var(--rule);
}

.page-contact .channel-stack {
  display: grid;
  gap: 10px;
}

.page-contact .channel-card {
  display: grid;
  gap: 4px;
  padding: 16px 18px 18px;
  background: var(--ink-700);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--signal);
  transition: background 200ms var(--ease), border-color 200ms var(--ease);
}

.page-contact .channel-card--coral {
  border-left-color: var(--coral);
}

.page-contact .channel-card:hover {
  background: var(--ink-800);
  border-color: var(--signal);
}

.page-contact .channel-card--coral:hover {
  border-color: var(--coral);
}

.page-contact .channel-card__kicker {
  margin: 0;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fog-dim);
}

.page-contact .channel-card__name {
  margin: 0;
  font-family: var(--font-num);
  font-size: clamp(24px, 3.4vw, 32px);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: 0.02em;
  color: var(--fog);
}

.page-contact .channel-card__value {
  margin: 2px 0 6px;
  font-size: clamp(14px, 1.7vw, 17px);
  line-height: 1.5;
  color: var(--signal);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .channel-card--coral .channel-card__value {
  color: var(--fog);
}

.page-contact .channel-card__use {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--fog-dim);
}

.page-contact .contact-hero__eyebrow {
  margin: 0 0 10px;
  color: var(--signal);
}

.page-contact .contact-hero__title {
  margin: 0 0 clamp(14px, 2vw, 22px);
  font-family: var(--font-serif);
  font-size: clamp(30px, 5.2vw, 52px);
  line-height: 1.22;
  font-weight: 700;
  color: var(--fog);
}

.page-contact .contact-hero__lede {
  margin: 0 0 clamp(20px, 3vw, 32px);
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.8;
  color: var(--fog);
  max-width: 58ch;
}

.page-contact .contact-route {
  list-style: none;
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  padding: 0;
  border-top: 1px solid var(--rule);
}

.page-contact .contact-route__item {
  border-bottom: 1px solid var(--rule);
}

.page-contact .contact-route__link {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr) auto;
  grid-template-areas:
    "idx label arrow"
    "idx meta arrow";
  align-items: center;
  gap: 2px 12px;
  padding: 12px 4px;
  text-decoration: none;
  transition: background 200ms var(--ease), color 200ms var(--ease);
}

.page-contact .contact-route__link:hover {
  background: var(--ink-800);
}

.page-contact .contact-route__index {
  grid-area: idx;
  font-family: var(--font-num);
  font-size: 20px;
  line-height: 1;
  color: var(--ink-700);
}

.page-contact .contact-route__link:hover .contact-route__index {
  color: var(--signal);
}

.page-contact .contact-route__label {
  grid-area: label;
  font-size: 15px;
  font-weight: 600;
  color: var(--fog);
}

.page-contact .contact-route__meta {
  grid-area: meta;
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--fog-dim);
}

.page-contact .contact-route__arrow {
  grid-area: arrow;
  font-size: 18px;
  color: var(--fog-dim);
  transition: transform 200ms var(--ease), color 200ms var(--ease);
}

.page-contact .contact-route__link:hover .contact-route__arrow {
  color: var(--signal);
  transform: translateX(4px);
}

.page-contact .contact-hero__footnote {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--fog-dim);
}

.page-contact .contact-hero__footnote a {
  color: var(--fog);
  border-bottom: 1px solid var(--signal);
  text-decoration: none;
}

/* ---------- 章节骨架 ---------- */
.page-contact .contact-block {
  border-top: 1px solid var(--rule);
}

.page-contact .chapter-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px clamp(12px, 2vw, 24px);
  align-items: start;
  margin-bottom: clamp(18px, 3vw, 32px);
}

.page-contact .chapter-head__num {
  font-family: var(--font-num);
  font-size: clamp(44px, 9vw, 110px);
  line-height: 0.82;
  font-weight: 600;
  color: var(--ink-700);
  -webkit-text-stroke: 1px var(--rule);
}

.page-contact .chapter-head__label {
  margin: 0 0 4px;
  color: var(--signal);
}

.page-contact .chapter-head__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(22px, 3.2vw, 33px);
  line-height: 1.35;
  font-weight: 700;
  color: var(--fog);
}

/* ---------- 01 回复时段 ---------- */
.page-contact .hours-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--cc-gap);
}

.page-contact .hours-card {
  padding: var(--cc-pad);
  background: var(--ink-800);
  border: 1px solid var(--rule);
  border-top: 2px solid var(--signal);
}

.page-contact .hours-card__kicker {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fog-dim);
}

.page-contact .hours-card__time {
  margin: 0;
  font-size: clamp(38px, 7vw, 64px);
  line-height: 1;
  font-weight: 600;
  color: var(--signal);
}

.page-contact .hours-card__dash {
  color: var(--ink-700);
  padding: 0 4px;
}

.page-contact .hours-card__unit {
  margin: 6px 0 12px;
  font-size: 14px;
  letter-spacing: 0.12em;
  color: var(--fog);
}

.page-contact .hours-card__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--fog-dim);
  border-top: 1px solid var(--rule);
  padding-top: 12px;
}

.page-contact .order-list {
  list-style: none;
  counter-reset: order;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .order-list li {
  counter-increment: order;
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--fog-dim);
}

.page-contact .order-list li::before {
  content: counter(order, decimal-leading-zero);
  font-family: var(--font-num);
  font-size: 19px;
  line-height: 1.3;
  color: var(--coral);
}

.page-contact .order-list strong {
  color: var(--fog);
  font-weight: 600;
}

/* ---------- 02 工单路径 ---------- */
.page-contact .ticket-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--cc-gap);
  align-items: start;
}

.page-contact .ticket-path {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin: 0 0 18px;
}

.page-contact .ticket-step {
  position: relative;
  padding: 14px 16px 16px;
  background: var(--ink-800);
  border: 1px solid var(--rule);
  border-top: 2px solid var(--signal);
  transition: background 200ms var(--ease), border-color 200ms var(--ease);
}

.page-contact .ticket-step:hover {
  background: var(--ink-700);
  border-color: var(--signal);
}

.page-contact .ticket-step__idx {
  margin: 0 0 4px;
  font-size: 15px;
  color: var(--signal);
}

.page-contact .ticket-step__title {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--fog);
}

.page-contact .ticket-step__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--fog-dim);
}

.page-contact .ticket-note {
  margin: 0;
  padding-left: 14px;
  border-left: 2px solid var(--coral);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--fog-dim);
}

.page-contact .ticket-figure {
  margin: 0;
  border: 1px solid var(--rule);
  background: var(--ink-800);
}

.page-contact .ticket-figure__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.65);
}

.page-contact .ticket-figure__caption {
  padding: 10px 14px;
  border-top: 1px solid var(--rule);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--fog-dim);
}

/* ---------- 03 资料纠错 ---------- */
.page-contact .correction-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--cc-gap);
  align-items: start;
}

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

.page-contact .check-list li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 12px 2px;
  border-bottom: 1px solid var(--rule);
}

.page-contact .check-list__key {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--signal);
}

.page-contact .check-list__val {
  font-size: 14px;
  line-height: 1.75;
  color: var(--fog-dim);
}

.page-contact .fix-panel {
  padding: var(--cc-pad);
  background: var(--ink-800);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--coral);
}

.page-contact .fix-panel__title {
  margin: 0 0 14px;
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 700;
  color: var(--fog);
}

.page-contact .fix-panel__list {
  margin: 0;
  display: grid;
  gap: 12px;
}

.page-contact .fix-panel__row {
  border-top: 1px solid var(--rule);
  padding-top: 10px;
}

.page-contact .fix-panel__row:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .fix-panel__key {
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--coral);
}

.page-contact .fix-panel__val {
  margin: 2px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--fog-dim);
}

.page-contact .fix-panel__foot {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--rule);
  font-size: 13px;
  color: var(--fog);
}

/* ---------- 04 合作（战术纸） ---------- */
.page-contact .contact-block--paper {
  background: var(--ink-900);
  padding-bottom: clamp(28px, 4vw, 56px);
}

.page-contact .partner-panel {
  background: var(--paper);
  color: var(--paper-ink);
  padding: clamp(22px, 4vw, 52px);
}

.page-contact .chapter-head--dark .chapter-head__num {
  color: transparent;
  -webkit-text-stroke: 1px rgba(12, 27, 38, 0.35);
}

.page-contact .chapter-head--dark .chapter-head__label {
  color: var(--ink-700);
}

.page-contact .chapter-head--dark .chapter-head__title {
  color: var(--paper-ink);
}

.page-contact .partner-panel__lede {
  margin: 0 0 clamp(18px, 2.6vw, 28px);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  max-width: 60ch;
  color: var(--paper-ink);
}

.page-contact .partner-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 2.6vw, 32px);
  border-top: 1px solid rgba(12, 27, 38, 0.22);
  padding-top: clamp(16px, 2.4vw, 26px);
}

.page-contact .partner-col__title {
  margin: 0 0 10px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--ink-700);
}

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

.page-contact .partner-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--paper-ink);
}

.page-contact .partner-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 7px;
  height: 7px;
  background: var(--coral);
}

.page-contact .partner-list a {
  color: var(--ink-700);
  border-bottom: 1px solid var(--coral);
  text-decoration: none;
}

.page-contact .partner-list a:hover {
  color: var(--paper-ink);
}

.page-contact .partner-panel__contact {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px solid rgba(12, 27, 38, 0.22);
  font-size: 14px;
  line-height: 1.75;
  color: var(--paper-ink);
}

.page-contact .partner-panel__mail {
  display: inline-block;
  padding: 1px 6px;
  background: var(--ink-900);
  color: var(--signal);
  overflow-wrap: anywhere;
  word-break: break-word;
}

/* ---------- 尾段指引 ---------- */
.page-contact .contact-block--next {
  border-top: 1px solid var(--rule);
}

.page-contact .next-strip__title {
  margin: 0 0 14px;
  font-family: var(--font-serif);
  font-size: clamp(18px, 2.4vw, 22px);
  font-weight: 700;
  color: var(--fog);
}

.page-contact .next-links {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}

.page-contact .next-link {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  background: var(--ink-800);
  text-decoration: none;
  transition: background 200ms var(--ease);
}

.page-contact .next-link:hover {
  background: var(--ink-700);
}

.page-contact .next-link__label {
  font-size: 15px;
  font-weight: 700;
  color: var(--signal);
}

.page-contact .next-link__note {
  font-size: 13px;
  color: var(--fog-dim);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .next-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .ticket-path {
    gap: 12px;
  }
}

@media (min-width: 860px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(24px, 4vw, 56px);
  }

  .page-contact .hours-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: clamp(20px, 3.4vw, 44px);
  }

  .page-contact .ticket-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(20px, 3.4vw, 44px);
  }

  .page-contact .ticket-path {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }

  .page-contact .ticket-step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 30px;
    right: -14px;
    width: 14px;
    height: 1px;
    background: var(--signal);
  }

  .page-contact .ticket-step:not(:last-child)::before {
    content: "";
    position: absolute;
    top: 27px;
    right: -14px;
    width: 7px;
    height: 7px;
    border-top: 1px solid var(--signal);
    border-right: 1px solid var(--signal);
    transform: rotate(45deg);
  }

  .page-contact .correction-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(20px, 3.4vw, 44px);
  }

  .page-contact .check-list li {
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 4px 18px;
    align-items: baseline;
  }

  .page-contact .partner-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(24px, 3.6vw, 48px);
  }

  .page-contact .next-links {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .contact-route__link,
  .page-contact .contact-route__arrow,
  .page-contact .ticket-step,
  .page-contact .next-link {
    transition: none;
  }

  .page-contact .contact-route__link:hover .contact-route__arrow {
    transform: none;
  }
}