.page-contact {
  --contact-hairline: var(--phx-mineral);
}

.page-contact .contact-hero {
  position: relative;
  padding: clamp(46px, 7vw, 92px) 0 clamp(30px, 4.5vw, 54px);
  border-bottom: 1px solid var(--phx-mineral);
  background:
    radial-gradient(120% 130% at 92% 4%, rgba(255, 107, 31, .16), transparent 58%),
    radial-gradient(95% 105% at 0% 0%, rgba(194, 38, 27, .13), transparent 52%);
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(to right, rgba(128, 149, 172, .11) 1px, transparent 1px);
  background-size: 64px 100%;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 86%);
  mask-image: linear-gradient(to bottom, #000 0%, transparent 86%);
}

.page-contact .contact-hero > .phx-container {
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero .phx-h1 {
  max-width: 620px;
  margin-bottom: 18px;
}

.page-contact .contact-hero .phx-lede {
  max-width: 640px;
}

.page-contact .contact-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 26px;
}

.page-contact .contact-hero__meta .phx-tag {
  font-size: 12px;
  letter-spacing: .04em;
}

/* ---------- 方向选择器 ---------- */

.page-contact .contact-directions {
  padding-top: clamp(40px, 6vw, 72px);
}

.page-contact .track-switch {
  position: relative;
  margin-top: 28px;
}

.page-contact .track-switch__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

.page-contact .track-switch__cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-contact .track-card {
  position: relative;
  display: block;
  padding: 18px 18px 20px;
  border: 1px solid var(--contact-hairline);
  border-radius: var(--phx-radius);
  background: var(--phx-rock);
  cursor: pointer;
  transition: border-color .25s var(--phx-ease), background-color .25s var(--phx-ease), transform .25s var(--phx-ease);
}

.page-contact .track-card::after {
  content: "";
  position: absolute;
  top: 18px;
  right: 18px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1px solid var(--contact-hairline);
  transition: background-color .25s var(--phx-ease), border-color .25s var(--phx-ease), box-shadow .25s var(--phx-ease);
}

.page-contact .track-card:hover {
  border-color: rgba(255, 107, 31, .55);
}

.page-contact .track-card__num {
  display: block;
  font-family: var(--phx-font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--phx-steel);
  margin-bottom: 12px;
  transition: color .25s var(--phx-ease);
}

.page-contact .track-card__name {
  display: block;
  font-family: var(--phx-font-display);
  font-size: 18px;
  line-height: 1.35;
  letter-spacing: .02em;
  color: var(--phx-cream);
  margin-bottom: 8px;
}

.page-contact .track-card__desc {
  display: block;
  font-size: 14px;
  line-height: 1.65;
  color: var(--phx-steel);
  max-width: 30ch;
}

.page-contact :is(#track-content:checked ~ .track-switch__cards [for="track-content"],
  #track-data:checked ~ .track-switch__cards [for="track-data"],
  #track-feature:checked ~ .track-switch__cards [for="track-feature"],
  #track-resident:checked ~ .track-switch__cards [for="track-resident"]) {
  border-color: var(--phx-flame);
  background: linear-gradient(180deg, rgba(255, 107, 31, .13), rgba(20, 23, 29, .9));
  transform: translateY(-2px);
}

.page-contact :is(#track-content:checked ~ .track-switch__cards [for="track-content"],
  #track-data:checked ~ .track-switch__cards [for="track-data"],
  #track-feature:checked ~ .track-switch__cards [for="track-feature"],
  #track-resident:checked ~ .track-switch__cards [for="track-resident"])::after {
  background: var(--phx-flame);
  border-color: var(--phx-flame);
  box-shadow: 0 0 0 4px rgba(255, 107, 31, .18);
}

.page-contact :is(#track-content:checked ~ .track-switch__cards [for="track-content"],
  #track-data:checked ~ .track-switch__cards [for="track-data"],
  #track-feature:checked ~ .track-switch__cards [for="track-feature"],
  #track-resident:checked ~ .track-switch__cards [for="track-resident"]) .track-card__num {
  color: var(--phx-flame);
}

.page-contact :is(#track-content:focus-visible ~ .track-switch__cards [for="track-content"],
  #track-data:focus-visible ~ .track-switch__cards [for="track-data"],
  #track-feature:focus-visible ~ .track-switch__cards [for="track-feature"],
  #track-resident:focus-visible ~ .track-switch__cards [for="track-resident"]) {
  outline: 2px solid var(--phx-flame-soft);
  outline-offset: 3px;
}

.page-contact .track-switch__panels {
  margin-top: 16px;
  border: 1px solid var(--contact-hairline);
  border-radius: calc(var(--phx-radius) + 4px);
  background: var(--phx-rock);
  overflow: hidden;
}

.page-contact .track-panel {
  display: none;
  padding: 6px 20px;
}

.page-contact :is(#track-content:checked ~ .track-switch__panels .track-panel--content,
  #track-data:checked ~ .track-switch__panels .track-panel--data,
  #track-feature:checked ~ .track-switch__panels .track-panel--feature,
  #track-resident:checked ~ .track-switch__panels .track-panel--resident) {
  display: block;
  animation: pageContactPanelIn .34s var(--phx-ease) both;
}

@keyframes pageContactPanelIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-contact .track-panel__list {
  margin: 0;
}

.page-contact .track-panel__row {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-top: 1px solid var(--contact-hairline);
}

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

.page-contact .track-panel__row dt {
  font-family: var(--phx-font-display);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--phx-flame);
}

.page-contact .track-panel__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--phx-ink);
  max-width: 66ch;
}

/* ---------- 图片 ---------- */

.page-contact .contact-shot {
  margin: 34px 0 0;
}

.page-contact .contact-shot img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--contact-hairline);
  border-radius: var(--phx-radius);
  filter: saturate(.86) contrast(1.04);
}

.page-contact .contact-shot figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--phx-steel);
  max-width: 60ch;
}

.page-contact .contact-shot--wide {
  max-width: 900px;
}

/* ---------- 合作流程 ---------- */

.page-contact .contact-flow {
  padding-top: clamp(44px, 6vw, 76px);
}

.page-contact .flow-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-top: 30px;
}

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

.page-contact .flow-step {
  display: grid;
  grid-template-columns: 38px 1fr;
  column-gap: 14px;
  row-gap: 8px;
  padding: 22px 0;
  border-top: 1px solid var(--contact-hairline);
}

.page-contact .flow-step:last-child {
  border-bottom: 1px solid var(--contact-hairline);
}

.page-contact .flow-step__num {
  grid-row: 1 / span 2;
  padding-top: 4px;
  font-family: var(--phx-font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--phx-flame);
}

.page-contact .flow-step__title {
  margin: 0 0 8px;
  font-family: var(--phx-font-serif);
  font-size: 19px;
  line-height: 1.4;
  font-weight: 600;
  color: var(--phx-cream);
}

.page-contact .flow-step__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--phx-ink);
  max-width: 56ch;
}

.page-contact .flow-step__time {
  grid-column: 2;
  justify-self: start;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid rgba(128, 149, 172, .35);
  background: rgba(128, 149, 172, .08);
  font-family: var(--phx-font-mono);
  font-size: 12px;
  letter-spacing: .03em;
  color: var(--phx-steel);
}

.page-contact .contact-shot--flow {
  margin-top: 0;
}

/* ---------- 联系方式 ---------- */

.page-contact .contact-channels {
  padding-top: clamp(44px, 6vw, 76px);
}

.page-contact .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-top: 30px;
}

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

.page-contact .channel-item {
  display: grid;
  gap: 7px;
  padding: 22px 0;
  border-bottom: 1px solid var(--contact-hairline);
}

.page-contact .channel-item__label {
  font-family: var(--phx-font-display);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--phx-mist);
}

.page-contact .channel-item__value {
  font-family: var(--phx-font-mono);
  font-size: clamp(17px, 2.4vw, 21px);
  line-height: 1.4;
  color: var(--phx-cream);
  overflow-wrap: anywhere;
}

.page-contact .channel-item__note {
  font-size: 14px;
  line-height: 1.7;
  color: var(--phx-steel);
  max-width: 46ch;
}

.page-contact .channel-side {
  position: relative;
  padding: 24px 22px 26px;
  border: 1px solid var(--contact-hairline);
  border-radius: calc(var(--phx-radius) + 4px);
  background:
    radial-gradient(120% 100% at 100% 0%, rgba(180, 115, 60, .2), transparent 62%),
    var(--phx-rock);
}

.page-contact .channel-side__title {
  margin: 0 0 16px;
  font-family: var(--phx-font-serif);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--phx-cream);
}

.page-contact .channel-side__list {
  margin: 0 0 18px;
  padding: 0;
}

.page-contact .channel-side__row {
  display: grid;
  gap: 4px;
  padding: 12px 0;
  border-top: 1px solid var(--contact-hairline);
}

.page-contact .channel-side__row:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .channel-side__row dt {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--phx-mist);
  font-family: var(--phx-font-display);
}

.page-contact .channel-side__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--phx-ink);
}

.page-contact .channel-side__region {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 999px;
  border: 1px dashed rgba(255, 107, 31, .45);
  background: rgba(255, 107, 31, .07);
  font-family: var(--phx-font-mono);
  font-size: 13px;
  color: var(--phx-cream);
}

.page-contact .channel-side__dot {
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--phx-flame);
  box-shadow: 0 0 0 5px rgba(255, 107, 31, .18);
}

.page-contact .channel-side__note {
  margin: 16px 0 18px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--phx-steel);
}

/* ---------- 常见问题 ---------- */

.page-contact .contact-faq {
  padding-top: clamp(44px, 6vw, 76px);
  padding-bottom: clamp(56px, 8vw, 96px);
}

.page-contact .faq-stack {
  margin-top: 26px;
  border-top: 1px solid var(--contact-hairline);
}

.page-contact .faq-stack .phx-fold {
  border-bottom: 1px solid var(--contact-hairline);
}

.page-contact .faq-stack summary {
  display: block;
  padding: 20px 34px 20px 0;
  position: relative;
  cursor: pointer;
  list-style: none;
  font-family: var(--phx-font-serif);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--phx-cream);
}

.page-contact .faq-stack summary::-webkit-details-marker {
  display: none;
}

.page-contact .faq-stack summary::after {
  content: "";
  position: absolute;
  top: 27px;
  right: 6px;
  width: 10px;
  height: 10px;
  border-right: 1.5px solid var(--phx-steel);
  border-bottom: 1.5px solid var(--phx-steel);
  transform: rotate(45deg);
  transition: transform .28s var(--phx-ease), border-color .28s var(--phx-ease);
}

.page-contact .faq-stack details[open] summary::after {
  transform: rotate(-135deg);
  border-color: var(--phx-flame);
}

.page-contact .faq-stack details[open] summary {
  color: var(--phx-flame-soft);
}

.page-contact .faq-stack .phx-fold__body {
  padding: 0 0 22px;
}

.page-contact .faq-stack .phx-fold__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--phx-ink);
  max-width: 66ch;
}

.page-contact .contact-related {
  margin: 30px 0 0;
  padding: 18px 20px;
  border-left: 2px solid var(--phx-flame);
  background: rgba(38, 43, 51, .55);
  border-radius: 0 var(--phx-radius) var(--phx-radius) 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--phx-steel);
  max-width: 78ch;
}

.page-contact .contact-related a {
  color: var(--phx-cream);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 107, 31, .6);
  transition: color .2s var(--phx-ease), border-color .2s var(--phx-ease);
}

.page-contact .contact-related a:hover,
.page-contact .contact-related a:focus-visible {
  color: var(--phx-flame);
  border-bottom-color: var(--phx-flame);
}

/* ---------- 响应式 ---------- */

@media (min-width: 620px) {
  .page-contact .track-switch__cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .track-panel {
    padding: 6px 26px;
  }
}

@media (min-width: 960px) {
  .page-contact .track-switch__cards {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
  }

  .page-contact .track-card__desc {
    max-width: 22ch;
  }

  .page-contact .track-panel {
    padding: 10px 32px;
  }

  .page-contact .track-panel__row {
    grid-template-columns: 120px 1fr;
    align-items: start;
    column-gap: 24px;
    padding: 20px 0;
  }

  .page-contact .flow-grid {
    grid-template-columns: 1.4fr 1fr;
    gap: 48px;
    align-items: start;
  }

  .page-contact .contact-shot--wide {
    margin-top: 44px;
  }

  .page-contact .channel-grid {
    grid-template-columns: 1.08fr .92fr;
    gap: 46px;
    align-items: start;
  }
}

@media (min-width: 1180px) {
  .page-contact .flow-step {
    grid-template-columns: 44px 1fr auto;
    align-items: start;
    row-gap: 0;
  }

  .page-contact .flow-step__num {
    grid-row: 1;
    padding-top: 4px;
  }

  .page-contact .flow-step__time {
    grid-column: 3;
    align-self: start;
    margin-top: 2px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .track-card,
  .page-contact .track-card::after,
  .page-contact .faq-stack summary::after {
    transition: none;
  }

  .page-contact .track-card:hover,
  .page-contact :is(#track-content:checked ~ .track-switch__cards [for="track-content"],
    #track-data:checked ~ .track-switch__cards [for="track-data"],
    #track-feature:checked ~ .track-switch__cards [for="track-feature"],
    #track-resident:checked ~ .track-switch__cards [for="track-resident"]) {
    transform: none;
  }

  .page-contact :is(#track-content:checked ~ .track-switch__panels .track-panel--content,
    #track-data:checked ~ .track-switch__panels .track-panel--data,
    #track-feature:checked ~ .track-switch__panels .track-panel--feature,
    #track-resident:checked ~ .track-switch__panels .track-panel--resident) {
    animation: none;
  }
}