.page-contact {
  --pc-radius: 6px;
  --pc-note-gap: 22px;
  display: block;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 48px 48px;
  background-position: 0 0;
  overflow-x: hidden;
}

.page-contact .eyebrow {
  color: var(--cyan);
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  margin: 0;
}

.page-contact h2 {
  font-family: var(--font-head);
  font-weight: 800;
  letter-spacing: -.5px;
  font-size: clamp(26px, 5.4vw, 40px);
  line-height: 1.14;
  color: var(--paper);
  margin: 10px 0 12px;
}

.page-contact .pc-section-head {
  max-width: 72ch;
  margin-bottom: 28px;
}

.page-contact .pc-section-head__desc {
  color: var(--mist);
  font-size: 16px;
  line-height: 1.75;
  margin: 0;
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding-block: 36px 44px;
  border-bottom: var(--frame) solid var(--ink-000);
}

.page-contact .pc-hero h1 {
  font-family: var(--font-head);
  font-weight: 900;
  letter-spacing: -.5px;
  font-size: clamp(32px, 8vw, 68px);
  line-height: 1.04;
  color: var(--paper);
  margin: 12px 0 18px;
}

.page-contact .pc-hero .lead {
  max-width: 56ch;
  color: var(--mist);
  font-size: 17px;
  line-height: 1.75;
  margin: 0;
}

.page-contact .pc-path {
  display: block;
  width: 100%;
  max-width: 340px;
  height: auto;
  padding: 18px 16px;
  border: var(--frame) solid var(--ink-000);
  border-radius: var(--pc-radius);
  background: var(--ink-800);
  box-shadow: var(--shadow-hard);
}

.page-contact .pc-path__line {
  stroke: var(--line-strong);
  stroke-width: 2;
}

.page-contact .pc-path__dot {
  fill: var(--ink-900);
  stroke: var(--cyan);
  stroke-width: 3;
}

.page-contact .pc-path__label {
  fill: var(--paper);
  font-family: var(--font-num);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .06em;
}

/* ---------- 通道区 ---------- */
.page-contact .pc-channel {
  padding-block: 48px 12px;
}

.page-contact .pc-channel__figure {
  margin: 0 0 36px;
}

.page-contact .pc-channel__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-contact .pc-channel__cards {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-contact .pc-card {
  border: var(--frame) solid var(--ink-000);
  border-radius: var(--pc-radius);
  background: var(--ink-800);
  box-shadow: var(--shadow-hard);
  padding: 22px 20px 20px;
  transition: border-color var(--ease), transform var(--ease), background-color var(--ease);
}

.page-contact .pc-card:hover {
  border-color: var(--cyan);
  transform: translate(2px, -2px);
  background: #142a5e;
}

.page-contact .pc-card__num {
  margin: 0 0 10px;
  color: var(--tactic);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .14em;
}

.page-contact .pc-card__title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 22px;
  letter-spacing: -.3px;
  color: var(--paper);
  margin: 0 0 8px;
}

.page-contact .pc-card__meta {
  margin: 0;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.65;
}

.page-contact .pc-card__hint {
  margin: 0;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  color: var(--cyan);
  font-size: 15px;
  line-height: 1.65;
  transition: max-height var(--ease), opacity var(--ease), margin-top var(--ease);
}

.page-contact .pc-card:hover .pc-card__hint {
  max-height: 140px;
  opacity: 1;
  margin-top: 12px;
}

.page-contact .pc-channel__notes {
  display: grid;
  gap: var(--pc-note-gap);
  align-content: start;
}

.page-contact .pc-note {
  border-left: 3px solid var(--line-strong);
  padding-left: 20px;
  transition: border-left-color var(--ease);
}

.page-contact .pc-note:hover {
  border-left-color: var(--cyan);
}

.page-contact .pc-note__title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 22px;
  letter-spacing: -.3px;
  color: var(--paper);
  margin: 0 0 10px;
}

.page-contact .pc-note p {
  margin: 0 0 14px;
  color: var(--mist);
  font-size: 16px;
  line-height: 1.75;
}

.page-contact .pc-note__contact {
  margin: 0;
  overflow-wrap: anywhere;
}

.page-contact .pc-copy {
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: .08em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px dashed var(--cyan-soft);
  transition: color var(--ease), border-bottom-color var(--ease);
}

.page-contact .pc-copy:hover,
.page-contact .pc-copy:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

.page-contact .pc-copy-tip {
  display: block;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  color: var(--pulse);
  font-size: 14px;
  line-height: 1.6;
  transition: max-height var(--ease), opacity var(--ease), margin-top var(--ease);
}

.page-contact .pc-copy-tip:target {
  max-height: 60px;
  opacity: 1;
  margin-top: 8px;
}

/* ---------- 合作 ---------- */
.page-contact .pc-coop {
  padding-block: 52px 12px;
}

.page-contact .pc-coop__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .pc-coop__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  padding: 20px 22px;
  border-left: 3px solid var(--pulse);
  border-radius: 0 var(--pc-radius) var(--pc-radius) 0;
  background: rgba(16, 32, 74, .72);
  transition: border-left-color var(--ease), background-color var(--ease);
}

.page-contact .pc-coop__item:hover {
  border-left-color: var(--cyan);
  background: var(--ink-800);
}

.page-contact .pc-coop__idx {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--tactic);
  line-height: 1.3;
}

.page-contact .pc-coop__title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -.3px;
  color: var(--paper);
  margin: 0 0 8px;
}

.page-contact .pc-coop__item p {
  margin: 0;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.7;
}

.page-contact .pc-coop__cta {
  margin: 24px 0 0;
  padding-left: 18px;
  border-left: 3px solid var(--line-strong);
  color: var(--paper);
  font-size: 16px;
  line-height: 1.75;
}

/* ---------- 到访提示 ---------- */
.page-contact .pc-visit {
  padding-block: 48px 12px;
}

.page-contact .pc-visit__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-contact .pc-visit__body p {
  margin: 0 0 16px;
  color: var(--mist);
  font-size: 16px;
  line-height: 1.75;
}

.page-contact .pc-visit__list-wrap {
  border: var(--frame) solid var(--ink-000);
  border-radius: var(--pc-radius);
  background: var(--ink-800);
  box-shadow: var(--shadow-hard);
  padding: 22px 20px;
}

.page-contact .pc-visit__list-title {
  margin: 0 0 16px;
  color: var(--tactic);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .14em;
}

.page-contact .pc-visit__checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .pc-visit__checklist li {
  position: relative;
  padding-left: 24px;
  color: var(--paper);
  font-size: 15px;
  line-height: 1.65;
}

.page-contact .pc-visit__checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 10px;
  height: 10px;
  background: var(--cyan);
}

/* ---------- 底部信息带 ---------- */
.page-contact .pc-band {
  position: relative;
  margin-top: 56px;
  border-top: var(--frame) solid var(--cyan);
  background: var(--ink-000);
  overflow: hidden;
}

.page-contact .pc-band__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .18;
  filter: grayscale(1) contrast(1.1);
  pointer-events: none;
}

.page-contact .pc-band__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding-block: 48px 52px;
}

.page-contact .pc-band__col > p {
  margin: 0 0 14px;
  color: var(--mist);
  font-size: 16px;
  line-height: 1.75;
}

.page-contact .pc-band__addr {
  margin: 20px 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--pulse);
  color: var(--paper);
  font-family: var(--font-num);
  font-size: 15px;
  letter-spacing: .06em;
  line-height: 1.7;
  overflow-wrap: anywhere;
}

.page-contact .pc-band__stats {
  margin: 0 0 24px;
  display: grid;
  gap: 0;
}

.page-contact .pc-band__stats > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .pc-band__stats dt {
  color: var(--mist);
  font-size: 15px;
}

.page-contact .pc-band__stats dd {
  margin: 0;
  color: var(--cyan);
  font-family: var(--font-num);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .08em;
}

.page-contact .pc-band__details {
  border: 1px solid var(--line-strong);
  border-radius: var(--pc-radius);
  padding: 0 16px;
}

.page-contact .pc-band__details summary {
  cursor: pointer;
  padding: 15px 0;
  color: var(--paper);
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 700;
  list-style: none;
  transition: color var(--ease);
}

.page-contact .pc-band__details summary::-webkit-details-marker {
  display: none;
}

.page-contact .pc-band__details summary::before {
  content: "+";
  display: inline-block;
  width: 20px;
  color: var(--cyan);
  font-family: var(--font-num);
  font-weight: 700;
}

.page-contact .pc-band__details[open] summary::before {
  content: "\2013";
}

.page-contact .pc-band__details summary:hover {
  color: var(--cyan);
}

.page-contact .pc-band__details p {
  margin: 0 0 16px;
  padding-left: 12px;
  border-left: 3px solid var(--cyan);
  color: var(--mist);
  font-size: 15px;
  line-height: 1.7;
}

/* ---------- 快捷条 ---------- */
.page-contact .pc-sticky {
  position: sticky;
  bottom: 0;
  z-index: 5;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 48px;
  padding-block: 18px;
  border-top: var(--frame) solid var(--cyan);
  background: rgba(16, 32, 74, .96);
}

.page-contact .pc-sticky p {
  margin: 0;
  flex: 1 1 260px;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.65;
}

.page-contact .pc-sticky .btn {
  flex: 0 0 auto;
}

/* ---------- 断点 ---------- */
@media (min-width: 760px) {
  .page-contact .pc-visit__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 40px;
  }
}

@media (min-width: 900px) {
  .page-contact .pc-hero {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    align-items: center;
    gap: 48px;
    padding-block: 52px 60px;
  }

  .page-contact .pc-hero__path {
    justify-self: end;
  }

  .page-contact .pc-channel__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 40px;
  }

  .page-contact .pc-band__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 48px;
  }
}

@media (max-width: 560px) {
  .page-contact .pc-hero h1 {
    font-size: 30px;
  }

  .page-contact .pc-card__title,
  .page-contact .pc-note__title {
    font-size: 20px;
  }

  .page-contact .pc-copy {
    font-size: 14px;
  }

  .page-contact .pc-coop__item {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}