.page-contact {
  display: block;
  overflow-x: hidden;
  padding-bottom: clamp(40px, 6vw, 88px);
}

/* ---------- 面包屑与首屏 ---------- */
.page-contact .crumbs {
  padding-top: clamp(16px, 3vw, 30px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--dust);
}

.page-contact .crumbs a {
  color: var(--dust);
  text-decoration: none;
  transition: color var(--fast) var(--ease);
}

.page-contact .crumbs a:hover,
.page-contact .crumbs a:focus-visible {
  color: var(--pulse);
}

.page-contact .pc-hero {
  position: relative;
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  padding-block: clamp(30px, 5vw, 62px) clamp(36px, 6vw, 76px);
}

.page-contact .pc-hero::after {
  content: "";
  position: absolute;
  top: -18%;
  right: -26%;
  width: min(62vw, 460px);
  aspect-ratio: 1;
  border: 1px solid var(--line-orbit);
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.7;
}

.page-contact .pc-hero__lead,
.page-contact .pc-hero__meta {
  position: relative;
  z-index: 1;
}

.page-contact .pc-hero__lead h1 {
  margin: 14px 0 20px;
  font-size: clamp(1.95rem, 6.4vw, 4.35rem);
  font-weight: 200;
  letter-spacing: 0.08em;
  line-height: 1.16;
  color: var(--star);
}

.page-contact .pc-hero__lede {
  max-width: 60ch;
  margin: 0;
  font-size: clamp(16px, 1.7vw, 18px);
  line-height: 1.9;
  color: var(--dust);
}

.page-contact .pc-hero__meta {
  align-self: start;
  border: 1px solid var(--line-orbit);
  border-left: 4px solid var(--nebula);
  background: var(--ink-night);
  box-shadow: 6px 6px 0 var(--shadow-deep);
}

.page-contact .pc-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  justify-content: space-between;
  padding: 13px clamp(16px, 2.4vw, 22px);
  border-bottom: 1px dashed var(--line-orbit);
}

.page-contact .pc-meta-row:last-child {
  border-bottom: 0;
}

.page-contact .pc-meta-key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--dust);
}

.page-contact .pc-meta-val {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--star);
}

/* ---------- 章节通用 ---------- */
.page-contact .pc-section {
  padding-block: clamp(44px, 7vw, 92px);
}

.page-contact .pc-sec-head {
  max-width: 74ch;
  margin-bottom: clamp(26px, 4vw, 46px);
}

.page-contact .pc-sec-head h2 {
  margin: 12px 0 14px;
  font-size: clamp(1.55rem, 4.4vw, 2.85rem);
  font-weight: 200;
  letter-spacing: 0.06em;
  line-height: 1.24;
  color: var(--star);
}

.page-contact .pc-sec-lede {
  margin: 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.9;
  color: var(--dust);
}

.page-contact .pc-kinds,
.page-contact .pc-flow {
  background: var(--ink-night);
  border-top: 1px solid var(--line-orbit);
  border-bottom: 1px solid var(--line-orbit);
}

.page-contact .pc-kinds__figure,
.page-contact .pc-flow__figure {
  margin: 0 0 clamp(26px, 4vw, 44px);
}

/* ---------- 分类选择器 ---------- */
.page-contact .pc-selector {
  position: relative;
  display: grid;
  gap: 18px;
}

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

.page-contact .pc-kind-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .pc-kind-tab {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 11px 16px;
  border: 1px solid var(--line-orbit);
  background: var(--ink-deep);
  color: var(--star);
  font-size: 15px;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: border-color var(--fast) var(--ease),
              background var(--fast) var(--ease),
              transform var(--fast) var(--ease);
}

.page-contact .pc-kind-tab__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--pulse);
  transition: color var(--fast) var(--ease);
}

.page-contact .pc-kind-tab:hover {
  border-color: var(--pulse);
  transform: translateX(3px);
}

.page-contact .pc-kind-radio:focus-visible ~ .pc-kind-tabs .pc-kind-tab {
  outline: 1px dashed var(--line-orbit);
  outline-offset: 2px;
}

.page-contact #pc-kind-a:checked ~ .pc-kind-tabs .pc-kind-tab--a,
.page-contact #pc-kind-b:checked ~ .pc-kind-tabs .pc-kind-tab--b,
.page-contact #pc-kind-c:checked ~ .pc-kind-tabs .pc-kind-tab--c,
.page-contact #pc-kind-d:checked ~ .pc-kind-tabs .pc-kind-tab--d {
  background: var(--nebula);
  border-color: var(--star);
  color: #FFFFFF;
  box-shadow: 4px 4px 0 var(--shadow-deep);
  transform: translateX(0);
}

.page-contact #pc-kind-a:checked ~ .pc-kind-tabs .pc-kind-tab--a .pc-kind-tab__idx,
.page-contact #pc-kind-b:checked ~ .pc-kind-tabs .pc-kind-tab--b .pc-kind-tab__idx,
.page-contact #pc-kind-c:checked ~ .pc-kind-tabs .pc-kind-tab--c .pc-kind-tab__idx,
.page-contact #pc-kind-d:checked ~ .pc-kind-tabs .pc-kind-tab--d .pc-kind-tab__idx {
  color: #FFFFFF;
}

.page-contact .pc-kind-panel {
  display: none;
  padding: clamp(20px, 3vw, 32px);
  border: 1px solid var(--line-orbit);
  border-top: 3px solid var(--nebula);
  background: var(--ink-deep);
  box-shadow: 8px 8px 0 var(--shadow-deep);
}

.page-contact #pc-kind-a:checked ~ .pc-kind-panels .pc-kind-panel--a,
.page-contact #pc-kind-b:checked ~ .pc-kind-panels .pc-kind-panel--b,
.page-contact #pc-kind-c:checked ~ .pc-kind-panels .pc-kind-panel--c,
.page-contact #pc-kind-d:checked ~ .pc-kind-panels .pc-kind-panel--d {
  display: block;
  animation: pc-swap 180ms var(--ease) both;
}

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

.page-contact .pc-kind-panel__code {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--pulse);
}

.page-contact .pc-kind-panel h3 {
  margin: 0 0 12px;
  font-size: clamp(1.3rem, 3.2vw, 1.85rem);
  font-weight: 300;
  letter-spacing: 0.05em;
  color: var(--star);
}

.page-contact .pc-kind-panel__desc {
  margin: 0 0 20px;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--dust);
}

.page-contact .pc-kind-panel__sub {
  margin: 20px 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.14em;
  color: var(--star);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line-orbit);
}

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

.page-contact .pc-tick li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--dust);
}

.page-contact .pc-tick li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 7px;
  border: 1px solid var(--pulse);
  transform: rotate(45deg);
}

.page-contact .pc-tick--mono li {
  font-family: var(--font-mono);
  font-size: 13.5px;
  letter-spacing: 0.02em;
  color: var(--star);
}

/* ---------- 联系卡片 ---------- */
.page-contact .pc-cards {
  display: grid;
  gap: 18px;
}

.page-contact .pc-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
  padding: clamp(20px, 2.8vw, 30px);
  border-left: 4px solid var(--pulse);
}

.page-contact .pc-card--wide {
  border-left-color: var(--nebula);
}

.page-contact .pc-card__key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--pulse);
}

.page-contact .pc-card--wide .pc-card__key {
  color: var(--nebula);
}

.page-contact .pc-card__val {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2vw, 19px);
  line-height: 1.65;
  letter-spacing: 0.02em;
  color: var(--star);
  overflow-wrap: anywhere;
}

.page-contact .pc-card__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--dust);
}

.page-contact .pc-card__copy {
  margin-top: auto;
  align-self: flex-start;
}

.page-contact .pc-card__copy:hover {
  border-color: var(--pulse);
}

/* ---------- 处理流程 ---------- */
.page-contact .pc-flow-strip {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  border: 1px solid var(--line-orbit);
  background: var(--ink-deep);
}

.page-contact .pc-flow-step {
  position: relative;
  padding: clamp(20px, 2.6vw, 28px);
  border-bottom: 1px solid var(--line-orbit);
  background: var(--ink-night);
  outline: none;
  transition: background var(--fast) var(--ease);
}

.page-contact .pc-flow-step:last-child {
  border-bottom: 0;
}

.page-contact .pc-flow-step::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--pulse);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 200ms var(--ease);
}

.page-contact .pc-flow-step:hover::before,
.page-contact .pc-flow-step:focus::before {
  transform: scaleX(1);
}

.page-contact .pc-flow-step:hover,
.page-contact .pc-flow-step:focus {
  background: var(--ink-deep);
}

.page-contact .pc-flow-step:focus-visible {
  outline: 2px solid var(--pulse);
  outline-offset: -2px;
}

.page-contact .pc-flow-step__idx {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--nebula);
}

.page-contact .pc-flow-step__name {
  margin: 0 0 8px;
  font-size: clamp(1.1rem, 2.4vw, 1.4rem);
  font-weight: 300;
  letter-spacing: 0.07em;
  color: var(--star);
}

.page-contact .pc-flow-step__brief {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--dust);
}

.page-contact .pc-flow-step__more {
  margin: 10px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--dust);
  padding-top: 10px;
  border-top: 1px dashed var(--line-orbit);
}

.page-contact .pc-flow-step__more::before {
  content: "补充 · ";
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--pulse);
}

/* ---------- 线下对接 ---------- */
.page-contact .pc-visit__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-contact .pc-visit__body h2 {
  margin: 12px 0 16px;
  font-size: clamp(1.55rem, 4.4vw, 2.85rem);
  font-weight: 200;
  letter-spacing: 0.06em;
  line-height: 1.24;
  color: var(--star);
}

.page-contact .pc-visit__body p {
  max-width: 62ch;
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--dust);
}

.page-contact .pc-visit__body p:last-child {
  margin-bottom: 0;
}

.page-contact .pc-visit__aside {
  align-self: start;
  padding: clamp(20px, 2.8vw, 28px);
  border-left: 4px solid var(--magenta);
}

.page-contact .pc-visit__aside-key {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--ink-deep);
  opacity: 0.72;
}

.page-contact .pc-visit__addr {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink-deep);
  overflow-wrap: anywhere;
}

.page-contact .pc-visit__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
  border-top: 1px solid rgba(5, 7, 15, 0.16);
  padding-top: 16px;
}

.page-contact .pc-visit__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-deep);
}

.page-contact .pc-visit__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 1px;
  background: var(--nebula);
}

/* ---------- 填写要点清单 ---------- */
.page-contact .pc-checklist {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .pc-check {
  position: relative;
}

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

.page-contact .pc-check__label {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: clamp(15px, 2vw, 22px) clamp(16px, 2.2vw, 26px);
  border: 1px solid var(--line-orbit);
  background: var(--ink-night);
  cursor: pointer;
  transition: border-color var(--fast) var(--ease),
              transform var(--fast) var(--ease),
              background var(--fast) var(--ease);
}

.page-contact .pc-check__label:hover {
  border-color: var(--pulse);
  transform: translateX(3px);
}

.page-contact .pc-check__box:focus-visible + .pc-check__label {
  outline: 2px solid var(--pulse);
  outline-offset: 2px;
}

.page-contact .pc-check__box:checked + .pc-check__label {
  border-color: var(--nebula);
  background: var(--ink-deep);
}

.page-contact .pc-check__mark {
  position: relative;
  flex: none;
  width: 20px;
  height: 20px;
  margin-top: 3px;
  border: 2px solid var(--line-orbit);
  transition: background var(--fast) var(--ease),
              border-color var(--fast) var(--ease);
}

.page-contact .pc-check__box:checked + .pc-check__label .pc-check__mark {
  background: var(--pulse);
  border-color: var(--pulse);
}

.page-contact .pc-check__box:checked + .pc-check__label .pc-check__mark::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 0;
  width: 6px;
  height: 11px;
  border-right: 2px solid var(--ink-deep);
  border-bottom: 2px solid var(--ink-deep);
  transform: rotate(42deg);
}

.page-contact .pc-check__idx {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--nebula);
  margin-top: 3px;
}

.page-contact .pc-check__txt {
  font-size: 15px;
  line-height: 1.85;
  color: var(--dust);
}

.page-contact .pc-check__txt strong {
  display: inline-block;
  margin-right: 8px;
  font-weight: 500;
  color: var(--star);
}

/* ---------- 相关通道 ---------- */
.page-contact .pc-next__panel {
  padding: clamp(22px, 3vw, 34px);
  border-left: 4px solid var(--nebula);
  box-shadow: 8px 8px 0 var(--shadow-deep);
}

.page-contact .pc-next__title {
  margin: 0 0 16px;
  font-size: clamp(1.15rem, 2.6vw, 1.5rem);
  font-weight: 300;
  letter-spacing: 0.06em;
  color: var(--star);
}

.page-contact .pc-next__panel p {
  max-width: 68ch;
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--dust);
}

.page-contact .pc-next__panel p:last-child {
  margin-bottom: 0;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .pc-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 960px) {
  .page-contact .pc-hero {
    grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.8fr);
    align-items: start;
  }

  .page-contact .pc-selector {
    grid-template-columns: 268px minmax(0, 1fr);
    gap: 30px;
    align-items: start;
  }

  .page-contact .pc-kind-tabs {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 10px;
  }

  .page-contact .pc-kind-tab {
    width: 100%;
  }

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

  .page-contact .pc-flow-step {
    border-bottom: 0;
    border-right: 1px solid var(--line-orbit);
  }

  .page-contact .pc-flow-step:last-child {
    border-right: 0;
  }

  .page-contact .pc-flow-step__more {
    max-height: 0;
    opacity: 0;
    margin-top: 0;
    overflow: hidden;
    transition: max-height 200ms var(--ease),
                opacity 200ms var(--ease),
                margin-top 200ms var(--ease);
  }

  .page-contact .pc-flow-step:hover .pc-flow-step__more,
  .page-contact .pc-flow-step:focus .pc-flow-step__more {
    max-height: 260px;
    opacity: 1;
    margin-top: 10px;
  }

  .page-contact .pc-visit__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-kind-panel,
  .page-contact .pc-flow-step,
  .page-contact .pc-flow-step::before,
  .page-contact .pc-check__label,
  .page-contact .pc-kind-tab {
    animation: none !important;
    transition: none !important;
  }
}