.page-contact {
  --ct-rail: 3px;
  --ct-gap: clamp(16px, 2.4vw, 28px);
  --ct-accent: var(--cyan-400);
  background-color: var(--ink-900);
  color: var(--paper-050);
  overflow-x: hidden;
}

.page-contact .container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--edge);
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  list-style: none;
  margin: 0;
  padding: calc(var(--header-h) + 30px) 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gray-400);
}

.page-contact .breadcrumbs__item {
  display: inline-flex;
  align-items: center;
}

.page-contact .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin-right: 10px;
  color: var(--grid-line);
}

.page-contact .breadcrumbs__link {
  color: var(--gray-400);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
}

.page-contact .breadcrumbs__link:hover,
.page-contact .breadcrumbs__link:focus-visible {
  color: var(--cyan-400);
  border-bottom-color: var(--cyan-400);
}

.page-contact .breadcrumbs__current {
  color: var(--cyan-400);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding: 34px 0 clamp(40px, 6vw, 84px);
}

.page-contact .contact-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(40px, 8vw, 88px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--paper-050);
}

.page-contact .contact-hero__lede {
  max-width: 64ch;
  margin: 22px 0 0;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.75;
  color: var(--gray-400);
}

.page-contact .contact-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
}

.page-contact .contact-quick__link {
  color: var(--cyan-400);
  text-decoration: none;
  padding-bottom: 3px;
  border-bottom: 1px solid rgba(79, 240, 208, 0.35);
}

.page-contact .contact-quick__link:hover,
.page-contact .contact-quick__link:focus-visible {
  color: var(--cyan-200);
  border-bottom-color: var(--cyan-200);
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 44px);
  margin-top: clamp(32px, 5vw, 60px);
}

/* ---------- 联系渠道卡 ---------- */
.page-contact .contact-channels {
  display: grid;
  gap: 14px;
}

.page-contact .channel {
  position: relative;
  background-color: var(--ink-800);
  border: var(--line);
  padding: 22px 22px 22px 28px;
}

.page-contact .channel::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: var(--ct-rail);
  background-color: var(--channel-accent, var(--cyan-400));
}

.page-contact .channel--ticket {
  --channel-accent: var(--cyan-400);
}

.page-contact .channel--phone {
  --channel-accent: var(--orange-500);
}

.page-contact .channel--visit {
  --channel-accent: var(--gray-400);
}

.page-contact .channel__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray-400);
}

.page-contact .channel__value {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(16px, 2vw, 21px);
  line-height: 1.4;
  letter-spacing: 0.01em;
  color: var(--paper-050);
  overflow-wrap: anywhere;
}

.page-contact .channel__value--addr {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: clamp(15px, 1.7vw, 18px);
  line-height: 1.65;
}

.page-contact .channel__desc {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--gray-400);
}

.page-contact .contact-hero__visual {
  margin: 0;
  align-self: start;
}

.page-contact .contact-hero__caption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray-400);
}

/* ---------- 分派流程带 ---------- */
.page-contact .contact-routing {
  padding-top: clamp(24px, 4vw, 48px);
}

.page-contact .routing-track {
  display: grid;
  grid-template-columns: 1fr;
  list-style: none;
  margin: clamp(28px, 4vw, 48px) 0 0;
  padding: 0;
}

.page-contact .routing-node {
  position: relative;
  padding: 20px 0 20px 28px;
  border-left: var(--line);
}

.page-contact .routing-node::before {
  content: "";
  position: absolute;
  left: -4.5px;
  top: 26px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--ink-900);
  border: 1px solid var(--cyan-400);
}

.page-contact .routing-node__index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--cyan-400);
}

.page-contact .routing-node__title {
  margin: 10px 0 0;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper-050);
}

.page-contact .routing-node__owner {
  margin: 6px 0 0;
  font-size: 13px;
  color: var(--orange-500);
}

.page-contact .routing-node__hint {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--gray-400);
  transition: color var(--dur) var(--ease);
}

.page-contact .routing-node:hover .routing-node__hint {
  color: var(--cyan-200);
}

.page-contact .routing-node:last-child {
  border-left-color: transparent;
}

/* ---------- 工单四要素 ---------- */
.page-contact .ticket-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 42px);
  margin-top: clamp(28px, 4vw, 48px);
}

.page-contact .ticket-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: tk;
  border-bottom: var(--line);
}

.page-contact .ticket-list__item {
  counter-increment: tk;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 18px;
  padding: 20px 0;
  border-top: var(--line);
}

.page-contact .ticket-list__item::before {
  content: counter(tk, decimal-leading-zero);
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--cyan-400);
  padding-top: 3px;
}

.page-contact .ticket-list__title {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper-050);
}

.page-contact .ticket-list__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--gray-400);
}

.page-contact .ticket-note {
  align-self: start;
  background-color: var(--ink-800);
  border: var(--line);
  padding: 24px;
}

.page-contact .ticket-note__text {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--gray-400);
}

/* ---------- 响应时段 ---------- */
.page-contact .contact-hours__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
  align-items: center;
}

.page-contact .contact-hours__figure {
  margin: 0;
}

.page-contact .hours-list {
  list-style: none;
  margin: clamp(24px, 3vw, 36px) 0 0;
  padding: 0;
}

.page-contact .hours-list__item {
  display: grid;
  gap: 8px;
  padding: 18px 0;
  border-top: var(--line);
}

.page-contact .hours-list__item:last-child {
  border-bottom: var(--line);
}

.page-contact .hours-list__when {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--orange-500);
}

.page-contact .hours-list__what {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--gray-400);
}

/* ---------- 协作 ---------- */
.page-contact .collab-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 44px);
  margin-top: clamp(28px, 4vw, 48px);
}

.page-contact .collab-types {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .collab-types__item {
  background-color: var(--ink-800);
  border: var(--line);
  border-top: 1px solid var(--grid-line);
  padding: 22px 24px;
  transition: border-color var(--dur) var(--ease);
}

.page-contact .collab-types__item:hover {
  border-color: var(--cyan-400);
}

.page-contact .collab-types__title {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--paper-050);
}

.page-contact .collab-types__desc {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--gray-400);
}

.page-contact .collab-prep {
  align-self: start;
  border: var(--line);
  background:
    linear-gradient(180deg, rgba(79, 240, 208, 0.06), rgba(79, 240, 208, 0) 55%),
    var(--ink-800);
  padding: 26px 24px;
}

.page-contact .collab-prep__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan-400);
}

.page-contact .collab-prep__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

.page-contact .collab-prep__list li {
  position: relative;
  padding: 0 0 0 20px;
  margin-bottom: 12px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper-050);
}

.page-contact .collab-prep__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 1px;
  background-color: var(--orange-500);
}

.page-contact .collab-prep__foot {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: var(--line);
  font-size: 13px;
  line-height: 1.75;
  color: var(--gray-400);
}

/* ---------- 自查折叠 ---------- */
.page-contact .selfcheck-list {
  margin-top: clamp(28px, 4vw, 44px);
  border-top: var(--line);
}

.page-contact .selfcheck-item {
  border-bottom: var(--line);
}

.page-contact .selfcheck-item__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 20px;
  padding: 20px 0;
  cursor: pointer;
  list-style: none;
}

.page-contact .selfcheck-item__summary::-webkit-details-marker {
  display: none;
}

.page-contact .selfcheck-item__summary::marker {
  content: "";
}

.page-contact .selfcheck-item__q {
  font-size: clamp(15px, 1.7vw, 17px);
  font-weight: 700;
  line-height: 1.55;
  color: var(--paper-050);
}

.page-contact .selfcheck-item__summary:hover .selfcheck-item__q,
.page-contact .selfcheck-item__summary:focus-visible .selfcheck-item__q {
  color: var(--cyan-200);
}

.page-contact .selfcheck-item__to {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gray-400);
}

.page-contact .selfcheck-item[open] .selfcheck-item__to {
  color: var(--cyan-400);
}

.page-contact .selfcheck-item__body {
  padding: 0 0 24px;
}

.page-contact .selfcheck-item__body p {
  margin: 0 0 16px;
  max-width: 68ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--gray-400);
}

/* ---------- 办公地址 ---------- */
.page-contact .visit-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.5vw, 44px);
  margin-top: clamp(28px, 4vw, 44px);
}

.page-contact .visit-card__plot {
  position: relative;
  border: var(--line);
  background-color: var(--ink-800);
  padding: 30px 26px;
  background-image:
    linear-gradient(90deg, rgba(31, 64, 52, 0.55) 1px, transparent 1px),
    linear-gradient(180deg, rgba(31, 64, 52, 0.55) 1px, transparent 1px);
  background-size: 44px 44px;
}

.page-contact .visit-card__plot::before,
.page-contact .visit-card__plot::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 1px solid var(--cyan-400);
}

.page-contact .visit-card__plot::before {
  top: -1px;
  left: -1px;
  border-right: 0;
  border-bottom: 0;
}

.page-contact .visit-card__plot::after {
  bottom: -1px;
  right: -1px;
  border-left: 0;
  border-top: 0;
}

.page-contact .visit-card__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan-400);
}

.page-contact .visit-card__address {
  margin: 16px 0 0;
  font-size: clamp(18px, 2.6vw, 26px);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--paper-050);
}

.page-contact .visit-card__hint {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--gray-400);
}

.page-contact .visit-card__notes {
  align-self: start;
  padding: 4px 0 0 20px;
  border-left: var(--line);
}

.page-contact .visit-card__notes p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--gray-400);
}

.page-contact .visit-card__notes p:last-child {
  margin-bottom: 0;
  color: var(--paper-050);
}

/* ---------- 收尾行动带 ---------- */
.page-contact .contact-cta__inner {
  display: grid;
  gap: 22px;
  padding-top: clamp(28px, 4vw, 52px);
  padding-bottom: clamp(48px, 6vw, 88px);
  border-top: var(--line);
}

.page-contact .contact-cta__line {
  margin: 0;
  max-width: 60ch;
  font-size: clamp(17px, 2vw, 22px);
  font-weight: 700;
  line-height: 1.65;
  color: var(--paper-050);
}

.page-contact .contact-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 680px) {
  .page-contact .ticket-grid {
    grid-template-columns: 1.35fr 0.65fr;
  }

  .page-contact .collab-grid {
    grid-template-columns: 1.25fr 0.75fr;
  }

  .page-contact .visit-card {
    grid-template-columns: 1.3fr 0.7fr;
  }

  .page-contact .contact-cta__inner {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
}

@media (min-width: 860px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: 1.06fr 0.94fr;
    align-items: start;
  }

  .page-contact .routing-track {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-contact .routing-node {
    padding: 28px 22px 0 0;
    border-left: 0;
    border-top: var(--line);
  }

  .page-contact .routing-node::before {
    left: 0;
    top: -4.5px;
  }

  .page-contact .routing-node:last-child {
    border-top-color: var(--grid-line);
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hours__grid {
    grid-template-columns: 0.94fr 1.06fr;
  }
}

@media (max-width: 859px) {
  .page-contact .routing-node:last-child {
    border-left-color: transparent;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .routing-node__hint,
  .page-contact .collab-types__item {
    transition: none;
  }
}
</main>