.page-contact {
  --pc-cut: 20px;
  --pc-gap: 14px;
  position: relative;
  overflow-x: hidden;
  padding-top: calc(var(--xy-header-h) + 20px);
  padding-bottom: 40px;
  color: var(--xy-white);
  font-family: var(--xy-font-body);
  background:
    radial-gradient(120% 70% at 84% -8%, rgba(139, 123, 255, 0.24), transparent 58%),
    radial-gradient(85% 55% at 2% 6%, rgba(59, 240, 208, 0.1), transparent 62%),
    var(--xy-ink);
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  font-family: var(--xy-font-display);
  letter-spacing: 0.02em;
}

.page-contact .pc-head {
  max-width: 62ch;
}

/* ---------- 首屏拼贴 ---------- */
.page-contact .pc-crumbs {
  margin-bottom: 26px;
}

.page-contact .pc-hero {
  position: relative;
  padding: 6px 0 46px;
}

.page-contact .pc-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--xy-line-strong), transparent);
}

.page-contact .pc-hero__grid {
  display: grid;
  gap: 30px;
}

.page-contact .pc-hero__title {
  margin: 12px 0 18px;
  font-size: clamp(2.05rem, 8.6vw, 3.9rem);
  line-height: 1.1;
  font-weight: 800;
  text-shadow: 0 0 30px rgba(59, 240, 208, 0.22);
}

.page-contact .pc-hero__lede {
  max-width: 48ch;
  margin: 0;
  color: var(--xy-dust);
  font-size: 1rem;
  line-height: 1.78;
}

.page-contact .pc-hero__tracks {
  display: grid;
  gap: 10px;
  margin-top: 26px;
}

.page-contact .pc-track {
  display: block;
  padding: 15px 17px;
  text-decoration: none;
  color: inherit;
  background: linear-gradient(158deg, var(--xy-nebula), rgba(27, 34, 71, 0.62));
  border: 1px solid var(--xy-line);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.page-contact .pc-track:hover,
.page-contact .pc-track:focus-visible {
  border-color: var(--xy-cyan);
  background: linear-gradient(158deg, rgba(59, 240, 208, 0.12), rgba(27, 34, 71, 0.82));
  transform: translateY(-2px);
}

.page-contact .pc-track__num {
  display: block;
  font-family: var(--xy-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--xy-cyan);
}

.page-contact .pc-track__label {
  display: block;
  margin: 7px 0 5px;
  font-family: var(--xy-font-display);
  font-size: 1.05rem;
  font-weight: 700;
}

.page-contact .pc-track__text {
  display: block;
  color: var(--xy-dust);
  font-size: 0.82rem;
  line-height: 1.65;
}

.page-contact .pc-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.page-contact .pc-hero__figure {
  margin: 0;
  border: 1px solid var(--xy-line);
  background: var(--xy-nebula);
  clip-path: polygon(0 0, calc(100% - var(--pc-cut)) 0, 100% var(--pc-cut), 100% 100%, var(--pc-cut) 100%, 0 calc(100% - var(--pc-cut)));
  overflow: hidden;
}

.page-contact .pc-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .pc-hero__cap {
  padding: 12px 16px 16px;
  color: var(--xy-dust);
  font-size: 0.78rem;
  line-height: 1.6;
  border-top: 1px solid var(--xy-line);
}

/* ---------- 反馈类型切换 ---------- */
.page-contact .pc-tabs {
  position: relative;
  margin-top: 30px;
}

.page-contact .pc-tabs__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-contact .pc-tabs__labels {
  display: grid;
  gap: 10px;
}

.page-contact .pc-tabs__label {
  cursor: pointer;
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 15px 18px;
  border: 1px solid var(--xy-line);
  background: rgba(17, 22, 51, 0.82);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
  transition: border-color 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.page-contact .pc-tabs__label:hover {
  border-color: var(--xy-line-strong);
}

.page-contact .pc-tabs__label-num {
  font-family: var(--xy-font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  color: var(--xy-dust);
}

.page-contact .pc-tabs__label-title {
  font-family: var(--xy-font-display);
  font-size: 1.1rem;
  font-weight: 700;
}

.page-contact #pc-tab-1:checked ~ .pc-tabs__labels label[for="pc-tab-1"],
.page-contact #pc-tab-2:checked ~ .pc-tabs__labels label[for="pc-tab-2"],
.page-contact #pc-tab-3:checked ~ .pc-tabs__labels label[for="pc-tab-3"] {
  border-color: var(--xy-cyan);
  background: linear-gradient(160deg, rgba(59, 240, 208, 0.15), rgba(17, 22, 51, 0.92));
  box-shadow: 0 0 0 1px rgba(59, 240, 208, 0.35), 0 0 26px rgba(59, 240, 208, 0.16);
}

.page-contact #pc-tab-1:checked ~ .pc-tabs__labels label[for="pc-tab-1"] .pc-tabs__label-num,
.page-contact #pc-tab-2:checked ~ .pc-tabs__labels label[for="pc-tab-2"] .pc-tabs__label-num,
.page-contact #pc-tab-3:checked ~ .pc-tabs__labels label[for="pc-tab-3"] .pc-tabs__label-num {
  color: var(--xy-cyan);
}

.page-contact #pc-tab-1:focus-visible ~ .pc-tabs__labels label[for="pc-tab-1"],
.page-contact #pc-tab-2:focus-visible ~ .pc-tabs__labels label[for="pc-tab-2"],
.page-contact #pc-tab-3:focus-visible ~ .pc-tabs__labels label[for="pc-tab-3"] {
  outline: 2px solid var(--xy-gold);
  outline-offset: 2px;
}

.page-contact .pc-tabs__panels {
  margin-top: 16px;
}

.page-contact .pc-tabs__panel {
  display: none;
  padding: 22px 20px;
  border: 1px solid var(--xy-line);
  border-left: 2px solid var(--xy-cyan);
  background: linear-gradient(160deg, rgba(27, 34, 71, 0.9), rgba(17, 22, 51, 0.92));
  clip-path: polygon(0 0, calc(100% - var(--pc-cut)) 0, 100% var(--pc-cut), 100% 100%, var(--pc-cut) 100%, 0 calc(100% - var(--pc-cut)));
}

.page-contact #pc-tab-1:checked ~ .pc-tabs__panels .pc-tabs__panel:nth-child(1),
.page-contact #pc-tab-2:checked ~ .pc-tabs__panels .pc-tabs__panel:nth-child(2),
.page-contact #pc-tab-3:checked ~ .pc-tabs__panels .pc-tabs__panel:nth-child(3) {
  display: block;
  animation: pc-fade 180ms ease-out both;
}

@keyframes pc-fade {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-contact .pc-tabs__panel-title {
  margin: 0 0 10px;
  font-size: 1.2rem;
  font-weight: 700;
}

.page-contact .pc-tabs__panel-text {
  margin: 0 0 14px;
  color: var(--xy-dust);
  font-size: 0.95rem;
  line-height: 1.75;
}

.page-contact .pc-tabs__list {
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-contact .pc-tabs__list li {
  position: relative;
  padding-left: 18px;
  color: var(--xy-white);
  font-size: 0.9rem;
  line-height: 1.7;
}

.page-contact .pc-tabs__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 8px;
  height: 1px;
  background: var(--xy-cyan);
}

.page-contact .pc-tabs__meta {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed var(--xy-line-strong);
  color: var(--xy-dust);
  font-size: 0.82rem;
  line-height: 1.6;
}

.page-contact .pc-tabs__meta .xy-mono {
  margin-right: 8px;
  color: var(--xy-gold);
}

/* ---------- 字段说明 ---------- */
.page-contact .pc-fields-wrap {
  display: grid;
  gap: 18px;
  margin-top: 26px;
}

.page-contact .pc-fields {
  display: grid;
  gap: 10px;
}

.page-contact .pc-field {
  padding: 16px 18px;
  border: 1px solid var(--xy-line);
  border-left: 2px solid var(--xy-violet);
  background: rgba(17, 22, 51, 0.72);
}

.page-contact .pc-field:nth-child(2) { border-left-color: var(--xy-cyan); }
.page-contact .pc-field:nth-child(3) { border-left-color: var(--xy-gold); }
.page-contact .pc-field:nth-child(4) { border-left-color: var(--xy-magenta); }
.page-contact .pc-field:nth-child(5) { border-left-color: var(--xy-green); }

.page-contact .pc-field__label {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  margin: 0 0 8px;
  font-family: var(--xy-font-display);
  font-size: 1rem;
  font-weight: 700;
}

.page-contact .pc-field__req {
  font-family: var(--xy-font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  padding: 2px 6px;
  border: 1px solid var(--xy-line-strong);
  color: var(--xy-dust);
}

.page-contact .pc-field__hint {
  margin: 0 0 10px;
  color: var(--xy-dust);
  font-size: 0.86rem;
  line-height: 1.7;
}

.page-contact .pc-field__state {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
}

.page-contact .pc-fields-note {
  padding: 22px 20px;
  border: 1px solid var(--xy-line);
  background: linear-gradient(165deg, rgba(139, 123, 255, 0.14), rgba(17, 22, 51, 0.92));
  clip-path: polygon(0 0, calc(100% - var(--pc-cut)) 0, 100% var(--pc-cut), 100% 100%, var(--pc-cut) 100%, 0 calc(100% - var(--pc-cut)));
}

.page-contact .pc-fields-note__title {
  margin: 10px 0 14px;
  font-size: 1.15rem;
  font-weight: 700;
}

.page-contact .pc-fields-note__list {
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .pc-fields-note__list li {
  position: relative;
  padding-left: 16px;
  color: var(--xy-dust);
  font-size: 0.86rem;
  line-height: 1.7;
}

.page-contact .pc-fields-note__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  border: 1px solid var(--xy-cyan);
  transform: rotate(45deg);
}

.page-contact .pc-fields-note__foot {
  margin: 0;
  padding-top: 14px;
  border-top: 1px dashed var(--xy-line-strong);
  color: var(--xy-white);
  font-size: 0.8rem;
  line-height: 1.7;
}

/* ---------- 处理流程 ---------- */
.page-contact .pc-process__grid {
  display: grid;
  gap: 22px;
  margin-top: 26px;
}

.page-contact .pc-steps {
  display: grid;
  gap: 10px;
}

.page-contact .pc-step {
  border: 1px solid var(--xy-line);
  background: rgba(17, 22, 51, 0.76);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
}

.page-contact .pc-step[open] {
  border-color: rgba(59, 240, 208, 0.42);
  background: linear-gradient(160deg, rgba(59, 240, 208, 0.09), rgba(17, 22, 51, 0.92));
}

.page-contact .pc-step > summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--xy-font-display);
  font-weight: 700;
  font-size: 0.98rem;
}

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

.page-contact .pc-step > summary:focus-visible {
  outline: 2px solid var(--xy-gold);
  outline-offset: -2px;
}

.page-contact .pc-step__num {
  font-family: var(--xy-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--xy-cyan);
}

.page-contact .pc-step__title {
  flex: 1 1 auto;
}

.page-contact .pc-step__mark {
  font-family: var(--xy-font-mono);
  color: var(--xy-dust);
  transition: transform 180ms ease, color 180ms ease;
}

.page-contact .pc-step[open] .pc-step__mark {
  transform: rotate(45deg);
  color: var(--xy-gold);
}

.page-contact .pc-step__body {
  padding: 0 16px 16px;
  color: var(--xy-dust);
  font-size: 0.87rem;
  line-height: 1.75;
  border-top: 1px dashed var(--xy-line);
  margin-top: 0;
  padding-top: 12px;
}

.page-contact .pc-process__figure {
  margin: 0;
  border: 1px solid var(--xy-line);
  background: var(--xy-nebula);
  clip-path: polygon(0 0, calc(100% - var(--pc-cut)) 0, 100% var(--pc-cut), 100% 100%, var(--pc-cut) 100%, 0 calc(100% - var(--pc-cut)));
  overflow: hidden;
  align-self: start;
}

.page-contact .pc-process__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .pc-process__cap {
  padding: 12px 16px 15px;
  border-top: 1px solid var(--xy-line);
  color: var(--xy-dust);
  font-size: 0.78rem;
  line-height: 1.6;
}

/* ---------- 联系渠道 ---------- */
.page-contact .pc-channels {
  display: grid;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .pc-channel {
  padding: 20px;
  border: 1px solid var(--xy-line);
  background: linear-gradient(152deg, rgba(27, 34, 71, 0.92), rgba(17, 22, 51, 0.94));
  clip-path: polygon(0 0, calc(100% - var(--pc-cut)) 0, 100% var(--pc-cut), 100% 100%, var(--pc-cut) 100%, 0 calc(100% - var(--pc-cut)));
  transition: border-color 180ms ease, transform 180ms ease, background 180ms ease;
}

.page-contact .pc-channel:hover {
  border-color: var(--xy-cyan);
  background: linear-gradient(152deg, rgba(59, 240, 208, 0.13), rgba(17, 22, 51, 0.95));
  transform: translateY(-2px);
}

.page-contact .pc-channel__label {
  margin: 0;
  font-family: var(--xy-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--xy-dust);
}

.page-contact .pc-channel__value {
  margin: 10px 0 8px;
  font-family: var(--xy-font-mono);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--xy-white);
  word-break: break-word;
}

.page-contact .pc-channel__use {
  margin: 0;
  color: var(--xy-dust);
  font-size: 0.85rem;
  line-height: 1.7;
}

.page-contact .pc-channel:hover .pc-channel__value {
  color: var(--xy-gold);
}

.page-contact .pc-channel--wide {
  border-left: 2px solid var(--xy-magenta);
}

/* ---------- 团队合作 ---------- */
.page-contact .pc-teams__grid {
  display: grid;
  gap: 24px;
}

.page-contact .pc-teams__lede {
  margin: 14px 0 18px;
  max-width: 52ch;
  color: var(--xy-dust);
  font-size: 0.98rem;
  line-height: 1.8;
}

.page-contact .pc-teams__list {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .pc-teams__list li {
  padding: 12px 14px;
  border-left: 1px solid var(--xy-violet);
  background: rgba(17, 22, 51, 0.6);
  color: var(--xy-dust);
  font-size: 0.88rem;
  line-height: 1.7;
}

.page-contact .pc-teams__list strong {
  color: var(--xy-white);
  font-weight: 600;
}

.page-contact .pc-teams__note {
  margin: 0;
  padding-top: 14px;
  border-top: 1px dashed var(--xy-line-strong);
  color: var(--xy-white);
  font-size: 0.85rem;
  line-height: 1.75;
}

.page-contact .pc-teams__stats {
  display: grid;
  gap: 1px;
  background: var(--xy-line);
  border: 1px solid var(--xy-line);
  align-self: start;
}

.page-contact .pc-stat {
  padding: 20px;
  background: rgba(11, 16, 38, 0.96);
}

.page-contact .pc-stat__num {
  display: block;
  font-family: var(--xy-font-mono);
  font-size: 1.5rem;
  color: var(--xy-cyan);
  letter-spacing: 0.02em;
}

.page-contact .pc-stat__label {
  display: block;
  margin-top: 6px;
  color: var(--xy-dust);
  font-size: 0.8rem;
  line-height: 1.6;
}

.page-contact .pc-stat--accent .pc-stat__num {
  color: var(--xy-gold);
}

/* ---------- 自助入口 ---------- */
.page-contact .pc-shortcuts {
  display: grid;
  gap: 10px;
  margin-top: 26px;
}

.page-contact .pc-shortcut {
  display: block;
  padding: 18px;
  text-decoration: none;
  color: inherit;
  border: 1px solid var(--xy-line);
  background: rgba(17, 22, 51, 0.72);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.page-contact .pc-shortcut:hover,
.page-contact .pc-shortcut:focus-visible {
  border-color: var(--xy-cyan);
  background: rgba(59, 240, 208, 0.08);
  transform: translateY(-2px);
}

.page-contact .pc-shortcut__num {
  display: block;
  font-family: var(--xy-font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--xy-violet);
}

.page-contact .pc-shortcut__title {
  display: block;
  margin: 8px 0 6px;
  font-family: var(--xy-font-display);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.5;
}

.page-contact .pc-shortcut__text {
  display: block;
  color: var(--xy-dust);
  font-size: 0.82rem;
  line-height: 1.65;
}

/* ---------- 服务节奏 ---------- */
.page-contact .pc-promise {
  display: grid;
  gap: 1px;
  margin-top: 24px;
  background: var(--xy-line);
  border: 1px solid var(--xy-line);
}

.page-contact .pc-promise__item {
  padding: 20px;
  background: rgba(11, 16, 38, 0.96);
}

.page-contact .pc-promise__item:nth-child(1) { border-top: 2px solid var(--xy-cyan); }
.page-contact .pc-promise__item:nth-child(2) { border-top: 2px solid var(--xy-violet); }
.page-contact .pc-promise__item:nth-child(3) { border-top: 2px solid var(--xy-gold); }
.page-contact .pc-promise__item:nth-child(4) { border-top: 2px solid var(--xy-green); }

.page-contact .pc-promise__num {
  display: block;
  font-family: var(--xy-font-mono);
  font-size: 1.25rem;
  letter-spacing: 0.02em;
  color: var(--xy-white);
}

.page-contact .pc-promise__text {
  margin: 8px 0 0;
  color: var(--xy-dust);
  font-size: 0.83rem;
  line-height: 1.7;
}

.page-contact .pc-promise__foot {
  margin: 18px 0 0;
  color: var(--xy-dust);
  font-size: 0.82rem;
  line-height: 1.75;
}

/* ---------- 收尾 ---------- */
.page-contact .pc-tail {
  display: flex;
  justify-content: flex-end;
  padding-top: 30px;
}

.page-contact .pc-top {
  font-family: var(--xy-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--xy-dust);
  text-decoration: none;
  padding: 8px 12px;
  border: 1px solid var(--xy-line);
  transition: color 180ms ease, border-color 180ms ease;
}

.page-contact .pc-top:hover,
.page-contact .pc-top:focus-visible {
  color: var(--xy-cyan);
  border-color: var(--xy-cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 600px) {
  .page-contact {
    --pc-cut: 22px;
  }

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

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

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

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

@media (min-width: 900px) {
  .page-contact {
    padding-top: calc(var(--xy-header-h) + 34px);
  }

  .page-contact .pc-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: end;
    gap: 40px;
  }

  .page-contact .pc-fields-wrap {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: start;
    gap: 24px;
  }

  .page-contact .pc-process__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
    align-items: start;
    gap: 28px;
  }

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

  .page-contact .pc-channel--wide {
    grid-column: 1 / -1;
  }

  .page-contact .pc-teams__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: start;
    gap: 32px;
  }

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

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

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

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-track,
  .page-contact .pc-channel,
  .page-contact .pc-shortcut,
  .page-contact .pc-step__mark,
  .page-contact .pc-tabs__label {
    transition: none;
  }

  .page-contact .pc-track:hover,
  .page-contact .pc-channel:hover,
  .page-contact .pc-shortcut:hover {
    transform: none;
  }

  .page-contact #pc-tab-1:checked ~ .pc-tabs__panels .pc-tabs__panel:nth-child(1),
  .page-contact #pc-tab-2:checked ~ .pc-tabs__panels .pc-tabs__panel:nth-child(2),
  .page-contact #pc-tab-3:checked ~ .pc-tabs__panels .pc-tabs__panel:nth-child(3) {
    animation: none;
  }
}