.page-contact {
  padding: 100px 0 0;
  background: var(--ink-900);
  color: var(--sand-50);
}

.page-contact .pc-hero {
  padding-bottom: 72px;
}

.page-contact .pc-hero__grid {
  display: grid;
  gap: 32px;
  margin-top: 26px;
}

.page-contact .pc-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: 30px;
  line-height: 1.22;
  letter-spacing: -.01em;
  color: var(--sand-50);
}

.page-contact .pc-hero__lead {
  margin: 16px 0 0;
  max-width: 62ch;
  color: rgba(242, 245, 241, .86);
}

.page-contact .pc-hero__facts {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .pc-hero__facts li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding-left: 14px;
  position: relative;
  font-size: 15px;
  line-height: 1.6;
  color: var(--slate-400);
}

.page-contact .pc-hero__facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 6px;
  height: 6px;
  border-radius: var(--r-pill);
  background: var(--alert-orange);
}

.page-contact .pc-hero__facts .mono {
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--signal-cyan);
}

.page-contact .pc-hero__figure {
  margin: 0;
}

/* 通信信息牌 + 通道对照 */
.page-contact .pc-board {
  padding-bottom: 84px;
}

.page-contact .pc-board__grid {
  display: grid;
  gap: 28px;
}

.page-contact .pc-plate {
  position: relative;
  overflow: hidden;
  padding: 26px 22px 24px;
  border: 1px solid var(--line-700);
  border-radius: var(--r-card);
  background: var(--block-950);
}

.page-contact .pc-plate::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: linear-gradient(180deg, var(--signal-cyan) 0%, var(--teal-600) 100%);
}

.page-contact .pc-plate__title {
  margin: 12px 0 18px;
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: -.01em;
  color: var(--sand-50);
}

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

.page-contact .pc-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "key btn"
    "val btn";
  align-items: center;
  gap: 4px 12px;
  padding: 13px 14px;
  border: 1px solid rgba(30, 33, 41, .95);
  border-radius: var(--r-sub);
  background: rgba(15, 42, 38, .6);
  transition: border-color var(--t-fast) var(--ease), background-color var(--t-fast) var(--ease);
}

.page-contact .pc-row:hover,
.page-contact .pc-row:focus-within {
  border-color: var(--signal-cyan);
  background: rgba(12, 107, 90, .3);
}

.page-contact .pc-row__key {
  grid-area: key;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--slate-400);
}

.page-contact .pc-row__val {
  grid-area: val;
  font-size: 15px;
  line-height: 1.5;
  color: var(--sand-50);
  overflow-wrap: anywhere;
  text-decoration: none;
}

.page-contact a.pc-row__val {
  transition: color var(--t-fast) var(--ease);
}

.page-contact a.pc-row__val:hover {
  color: var(--cyan-100);
}

.page-contact .pc-row .copy-btn {
  grid-area: btn;
  align-self: center;
}

.page-contact .pc-plate__note {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-700);
  font-size: 14px;
  line-height: 1.75;
  color: var(--slate-400);
}

.page-contact .pc-routes {
  display: grid;
  gap: 20px;
  align-content: start;
}

.page-contact .pc-map-wrap {
  overflow: hidden;
  border: 1px solid var(--line-700);
  border-radius: var(--r-card);
  background: var(--ink-800);
}

.page-contact .pc-map {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}

.page-contact .pc-map thead th {
  padding: 13px 16px;
  background: var(--teal-600);
  color: var(--sand-50);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  text-align: left;
}

.page-contact .pc-map td {
  padding: 14px 16px;
  border-top: 1px solid var(--line-700);
  line-height: 1.65;
  vertical-align: middle;
  color: var(--sand-50);
  overflow-wrap: anywhere;
}

.page-contact .pc-map tbody tr {
  transition: background-color var(--t-fast) var(--ease);
}

.page-contact .pc-map tbody tr:hover {
  background: rgba(12, 107, 90, .32);
}

.page-contact .pc-map .tag {
  display: inline-block;
  text-decoration: none;
}

/* 反馈路径 */
.page-contact .pc-flow {
  padding-bottom: 84px;
}

.page-contact .pc-flow__head {
  display: grid;
  gap: 28px;
}

.page-contact .pc-flow__lead {
  margin: 14px 0 0;
  max-width: 58ch;
  color: rgba(242, 245, 241, .84);
}

.page-contact .pc-flow__figure {
  margin: 0;
}

.page-contact .pc-steps {
  list-style: none;
  margin: 48px 0 0;
  padding: 0;
  display: grid;
  gap: 34px;
}

.page-contact .pc-step {
  position: relative;
  padding: 34px 22px 22px;
  border: 1px solid var(--line-700);
  border-radius: var(--r-sub);
  background: var(--ink-800);
  transition: border-color var(--t-fast) var(--ease), background-color var(--t-fast) var(--ease);
}

.page-contact .pc-step:hover {
  border-color: var(--signal-cyan);
  background: rgba(12, 107, 90, .18);
}

.page-contact .pc-step__no {
  position: absolute;
  top: -18px;
  left: 22px;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: var(--r-pill);
  border: 2px solid var(--signal-cyan);
  background: var(--teal-600);
  color: var(--sand-50);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
}

.page-contact .pc-step__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: -.01em;
  color: var(--sand-50);
}

.page-contact .pc-step__hint {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--slate-400);
}

/* 合作与共建 */
.page-contact .pc-collab {
  padding-bottom: 84px;
}

.page-contact .pc-collab__grid {
  margin-top: 34px;
}

.page-contact .pc-collab__card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  height: 100%;
}

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

.page-contact .pc-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate-400);
}

.page-contact .pc-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .7em;
  width: 6px;
  height: 6px;
  border-radius: var(--r-pill);
  background: var(--signal-cyan);
}

/* 邮寄与到访 */
.page-contact .pc-visit {
  padding-bottom: 96px;
}

.page-contact .pc-visit__panel {
  position: relative;
  overflow: hidden;
  padding: 30px 24px 32px;
  border: 1px solid var(--line-700);
  border-radius: var(--r-card);
  background: var(--ink-800);
}

.page-contact .pc-visit__panel::after {
  content: "";
  position: absolute;
  top: -70px;
  right: -70px;
  width: 230px;
  height: 230px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 122, 47, .2) 0%, rgba(255, 122, 47, 0) 68%);
  pointer-events: none;
}

.page-contact .pc-visit__text {
  position: relative;
  margin: 16px 0 0;
  max-width: 60ch;
  color: rgba(242, 245, 241, .84);
}

.page-contact .pc-visit__addr {
  position: relative;
  margin: 20px 0 0;
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: .02em;
  color: var(--signal-cyan);
  overflow-wrap: anywhere;
}

.page-contact .pc-visit__tail {
  position: relative;
  margin: 20px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line-700);
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate-400);
}

@media (min-width: 640px) {
  .page-contact {
    padding-top: 116px;
  }

  .page-contact .pc-hero__title {
    font-size: 36px;
  }

  .page-contact .pc-plate {
    padding: 30px 28px 28px;
  }

  .page-contact .pc-visit__panel {
    padding: 38px 36px 40px;
  }
}

@media (min-width: 900px) {
  .page-contact {
    padding-top: 132px;
  }

  .page-contact .pc-hero {
    padding-bottom: 96px;
  }

  .page-contact .pc-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: 56px;
    align-items: center;
  }

  .page-contact .pc-hero__title {
    font-size: 46px;
  }

  .page-contact .pc-flow__head {
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 48px;
    align-items: center;
  }

  .page-contact .pc-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
    margin-top: 58px;
  }

  .page-contact .pc-step::after {
    content: "";
    position: absolute;
    top: 2px;
    left: 68px;
    right: -22px;
    height: 2px;
    background: linear-gradient(90deg, rgba(53, 240, 200, .55) 0%, rgba(53, 240, 200, .06) 100%);
  }

  .page-contact .pc-step:last-child::after {
    display: none;
  }
}

@media (min-width: 1024px) {
  .page-contact .pc-board__grid {
    grid-template-columns: 380px minmax(0, 1fr);
    gap: 34px;
    align-items: start;
  }

  .page-contact .pc-plate {
    position: sticky;
    top: 120px;
  }
}

@media (max-width: 639px) {
  .page-contact .pc-map thead {
    display: none;
  }

  .page-contact .pc-map,
  .page-contact .pc-map tbody,
  .page-contact .pc-map tr,
  .page-contact .pc-map td {
    display: block;
    width: 100%;
  }

  .page-contact .pc-map tr {
    padding: 14px 16px;
    border-top: 1px solid var(--line-700);
  }

  .page-contact .pc-map tr:first-child {
    border-top: 0;
  }

  .page-contact .pc-map td {
    padding: 0;
    border-top: 0;
  }

  .page-contact .pc-map td + td {
    margin-top: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-row,
  .page-contact .pc-step,
  .page-contact .pc-map tbody tr,
  .page-contact a.pc-row__val {
    transition: none;
  }
}