.page-contact {
  padding-top: 24px;
  padding-bottom: calc(var(--dock-h) + 48px);
}

.page-contact .pc-breadcrumb-bar {
  padding-bottom: 20px;
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  padding: 12px 0 52px;
  border-bottom: 1px solid var(--line);
}

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

.page-contact .pc-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-size: clamp(30px, 6.2vw, 56px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--ink);
  max-width: 16ch;
}

.page-contact .pc-hero__lede {
  margin: 20px 0 0;
  max-width: 48ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .pc-hero__lede--sub {
  margin-top: 12px;
  font-size: 14px;
  color: var(--muted);
  opacity: 0.86;
}

.page-contact .pc-hero__meta {
  border: 1px solid var(--line);
  background: var(--navy-2);
  padding: 6px 20px;
}

.page-contact .pc-meta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

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

.page-contact .pc-meta-key {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-contact .pc-meta-val {
  font-family: var(--font-num);
  font-size: 16px;
  letter-spacing: 0.02em;
  color: var(--ink);
}

/* ---------- 通用区块头 ---------- */
.page-contact .pc-section {
  padding: 56px 0;
}

.page-contact .pc-section--alt {
  background: var(--navy-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .pc-head {
  display: grid;
  gap: 10px;
  margin-bottom: 32px;
}

.page-contact .pc-coord {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--orange);
}

.page-contact .pc-head h2 {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(23px, 3.8vw, 34px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--ink);
}

.page-contact .pc-head p {
  margin: 0;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 合作方向卡片 ---------- */
.page-contact .pc-coop-grid {
  display: grid;
  gap: 14px;
}

.page-contact .pc-coop-card {
  --accent: var(--orange);
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 20px 20px 22px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent);
  background: var(--navy-3);
}

.page-contact .pc-coop-card--cyan {
  --accent: var(--cyan);
}

.page-contact .pc-coop-card--amber {
  --accent: var(--amber);
}

.page-contact .pc-coop-card--magenta {
  --accent: var(--magenta);
}

.page-contact .pc-coop-card__index {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--accent);
}

.page-contact .pc-coop-card h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.32;
  color: var(--ink);
}

.page-contact .pc-coop-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .pc-coop-card p.pc-coop-card__fit {
  margin-top: 4px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  color: var(--muted);
}

/* ---------- 流程 ---------- */
.page-contact .pc-flow {
  display: grid;
  gap: 32px;
}

.page-contact .pc-flow__media {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--navy-3);
}

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

.page-contact .pc-flow__media figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

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

.page-contact .pc-step {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 14px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .pc-step:first-child {
  border-top: 1px solid var(--line);
}

.page-contact .pc-step__num {
  font-family: var(--font-num);
  font-size: 26px;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--orange);
}

.page-contact .pc-step__body h3 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .pc-step__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 联系方式 ---------- */
.page-contact .pc-channel-panel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--navy-2);
  padding: 6px 20px 26px;
}

.page-contact .pc-channel-panel__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.22;
  pointer-events: none;
}

.page-contact .pc-channel-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 22, 38, 0.5) 0%, rgba(10, 22, 38, 0.94) 100%);
  pointer-events: none;
}

.page-contact .pc-lines,
.page-contact .pc-channel-note {
  position: relative;
  z-index: 1;
}

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

.page-contact .pc-line {
  display: grid;
  gap: 6px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .pc-line__key {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-contact .pc-line__val {
  font-family: var(--font-num);
  font-size: clamp(16px, 2.6vw, 22px);
  letter-spacing: 0.02em;
  line-height: 1.4;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-contact .pc-channel-note {
  margin: 22px 0 0;
  max-width: 62ch;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 分流 ---------- */
.page-contact .pc-split {
  display: grid;
  gap: 16px;
}

.page-contact .pc-split__item {
  padding: 24px 22px;
  border: 1px solid var(--line);
  background: var(--navy-3);
}

.page-contact .pc-split__item--feedback {
  border-left: 3px solid var(--magenta);
}

.page-contact .pc-split__item--biz {
  border-left: 3px solid var(--cyan);
}

.page-contact .pc-split__tag {
  display: inline-block;
  margin-bottom: 14px;
}

.page-contact .pc-split__item h3 {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .pc-split__item p {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

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

.page-contact .pc-split__item a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(44, 232, 208, 0.4);
}

.page-contact .pc-split__item a:hover,
.page-contact .pc-split__item a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 常见问题 ---------- */
.page-contact .pc-faq {
  border-top: 1px solid var(--line);
}

.page-contact .pc-faq details {
  border-bottom: 1px solid var(--line);
}

.page-contact .pc-faq summary {
  position: relative;
  padding: 18px 40px 18px 0;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink);
}

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

.page-contact .pc-faq summary::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 16px;
  font-family: var(--font-num);
  font-size: 20px;
  line-height: 1;
  color: var(--orange);
}

.page-contact .pc-faq details[open] summary::after {
  content: "—";
}

.page-contact .pc-faq summary:focus-visible {
  outline: 1px solid var(--orange);
  outline-offset: 4px;
}

.page-contact .pc-faq p {
  margin: 0;
  padding: 0 40px 20px 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 底部刻度收边 ---------- */
.page-contact .pc-footrule {
  display: flex;
  align-items: center;
  gap: 14px;
  max-width: var(--maxw);
  margin: 8px auto 0;
  padding: 0 20px 8px;
}

.page-contact .pc-footrule__label,
.page-contact .pc-footrule__time {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
  white-space: nowrap;
}

.page-contact .pc-footrule__time {
  color: var(--orange);
}

.page-contact .pc-footrule__ticks {
  flex: 1 1 auto;
  height: 10px;
  border-top: 1px solid var(--line);
  background-image: repeating-linear-gradient(
    to right,
    var(--line) 0,
    var(--line) 1px,
    transparent 1px,
    transparent 12px
  );
  background-size: 100% 5px;
  background-repeat: repeat-x;
  background-position: top left;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .pc-coop-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 720px) {
  .page-contact .pc-line {
    grid-template-columns: 132px minmax(0, 1fr);
    align-items: baseline;
    gap: 24px;
    padding: 22px 0;
  }

  .page-contact .pc-channel-panel {
    padding: 8px 32px 30px;
  }
}

@media (min-width: 900px) {
  .page-contact .pc-hero__grid {
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr);
    gap: 56px;
    align-items: end;
  }

  .page-contact .pc-hero {
    padding: 20px 0 64px;
  }
}

@media (min-width: 960px) {
  .page-contact .pc-flow {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-contact .pc-section {
    padding: 72px 0;
  }
}

@media (min-width: 1100px) {
  .page-contact .pc-coop-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
  }

  .page-contact .pc-coop-card:nth-child(2),
  .page-contact .pc-coop-card:nth-child(4) {
    margin-top: 30px;
  }

  .page-contact .pc-footrule {
    padding-bottom: 0;
  }
}

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