.page-contact {
  --pc-deep-cyan: #0A6E7E;
  --pc-card-line: rgba(18, 24, 28, .12);
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: #fff;
  padding: calc(var(--header-h) + 60px) 0 88px;
}

.page-contact .pc-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(168, 244, 255, .08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(168, 244, 255, .08) 1px, transparent 1px);
  background-size: 58px 58px;
  -webkit-mask-image: radial-gradient(circle at 72% 18%, #000 0%, transparent 74%);
  mask-image: radial-gradient(circle at 72% 18%, #000 0%, transparent 74%);
  pointer-events: none;
}

.page-contact .pc-hero::after {
  content: "";
  position: absolute;
  right: -14%;
  top: -30%;
  width: 62%;
  height: 130%;
  background: radial-gradient(circle, rgba(0, 229, 255, .20) 0%, transparent 62%);
  transform: rotate(-10deg);
  pointer-events: none;
}

.page-contact .pc-hero__inner {
  position: relative;
  z-index: 1;
}

.page-contact .pc-hero .crumbs {
  margin-bottom: 30px;
}

.page-contact .pc-hero .crumb-item a,
.page-contact .pc-hero .crumb-item {
  color: var(--muted);
  font-size: 12.5px;
}

.page-contact .pc-hero .crumb-item a:hover {
  color: var(--cyan);
}

.page-contact .pc-hero .crumb-item[aria-current="page"] {
  color: #fff;
}

.page-contact .pc-kicker {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cyan);
  border-left: 2px solid var(--cyan);
  padding-left: 10px;
  margin: 0 0 18px;
}

.page-contact .pc-kicker--dark {
  color: var(--pc-deep-cyan);
  border-left-color: var(--pc-deep-cyan);
}

.page-contact .pc-hero__title {
  margin: 0 0 24px;
  max-width: 16ch;
  line-height: 1.02;
  letter-spacing: -.03em;
}

.page-contact .pc-hero__lead {
  max-width: 58ch;
  margin: 0;
  color: #D6E1E4;
  font-size: 16px;
  line-height: 1.78;
}

.page-contact .pc-hero__facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 46px;
  max-width: 760px;
  padding-top: 28px;
  border-top: 1px solid var(--line-dark);
}

.page-contact .pc-fact__n {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 40px;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--cyan);
}

.page-contact .pc-fact__l {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 合作方向 ---------- */
.page-contact .pc-dirs {
  background: var(--ink);
  color: #fff;
  padding: 0 0 96px;
}

.page-contact .pc-sec-head {
  max-width: 680px;
  margin-bottom: 44px;
}

.page-contact .pc-sec-head__title {
  margin: 0 0 16px;
  color: #fff;
}

.page-contact .pc-sec-head__title--dark {
  color: var(--text-dark);
}

.page-contact .pc-sec-head__sub {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .pc-sec-head__sub--dark {
  color: rgba(18, 24, 28, .68);
}

.page-contact .pc-dir-grid {
  gap: 22px;
}

.page-contact .pc-dir {
  background: var(--ink-2);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .16s var(--ease), transform .16s var(--ease);
}

.page-contact .pc-dir:hover {
  border-color: rgba(0, 229, 255, .48);
  transform: translateY(-2px);
}

.page-contact .pc-dir[open] {
  border-color: rgba(0, 229, 255, .55);
}

.page-contact .pc-dir > summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 22px 20px;
}

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

.page-contact .pc-dir__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-contact .pc-dir__name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.4;
  letter-spacing: -.01em;
  color: #fff;
}

.page-contact .pc-dir__sign {
  width: 11px;
  height: 11px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform .18s var(--ease);
}

.page-contact .pc-dir[open] .pc-dir__sign {
  transform: rotate(225deg);
}

.page-contact .pc-dir__body {
  padding: 18px 20px 24px;
  border-top: 1px solid var(--line-soft);
}

.page-contact .pc-dir__fit {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

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

.page-contact .pc-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.68;
  color: var(--text-dark);
}

.page-contact .pc-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 8px;
  height: 1px;
  background: var(--pc-deep-cyan);
}

.page-contact .pc-list--light li {
  color: #DCE6E9;
}

.page-contact .pc-list--light li::before {
  background: var(--lime);
}

/* ---------- 流程 + 联系面板 ---------- */
.page-contact .pc-main {
  background: var(--mist);
  color: var(--text-dark);
  padding: 88px 0;
}

.page-contact .pc-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 48px;
}

.page-contact .pc-flow-media {
  margin: 0 0 34px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--pc-card-line);
}

.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: 16px;
  padding: 26px 0;
  border-top: 1px solid var(--pc-card-line);
}

.page-contact .pc-step:last-child {
  border-bottom: 1px solid var(--pc-card-line);
}

.page-contact .pc-step__num {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 34px;
  line-height: .92;
  letter-spacing: -.04em;
  color: rgba(18, 24, 28, .18);
  transition: color .18s var(--ease);
}

.page-contact .pc-step:hover .pc-step__num {
  color: var(--pc-deep-cyan);
}

.page-contact .pc-step h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -.01em;
  color: var(--text-dark);
}

.page-contact .pc-step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.74;
  color: rgba(18, 24, 28, .72);
}

.page-contact .pc-step__deliver {
  display: inline-block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--pc-deep-cyan);
  background: rgba(0, 229, 255, .16);
  border-radius: 4px;
  padding: 4px 9px;
}

.page-contact .pc-panel {
  position: relative;
  overflow: hidden;
  background: var(--paper);
  color: var(--text-dark);
  border: 1px solid var(--pc-card-line);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: 0 24px 48px -34px rgba(11, 15, 18, .5);
}

.page-contact .pc-panel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--cyan), var(--lime) 55%, var(--orange));
}

.page-contact .pc-panel__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--pc-deep-cyan);
  background: rgba(0, 229, 255, .18);
  border-radius: 4px;
  padding: 4px 8px;
  margin-bottom: 14px;
}

.page-contact .pc-panel__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 22px;
  line-height: 1.36;
  letter-spacing: -.01em;
  color: var(--text-dark);
}

.page-contact .pc-panel__intro {
  margin: 0 0 22px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(18, 24, 28, .7);
}

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

.page-contact .pc-contacts > li {
  padding: 16px 0;
  border-top: 1px solid var(--pc-card-line);
}

.page-contact .pc-contacts > li:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .pc-contacts__k {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: rgba(18, 24, 28, .55);
  margin-bottom: 8px;
}

.page-contact .pc-mono {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.5;
  letter-spacing: .01em;
  color: var(--text-dark);
  text-decoration: none;
  word-break: break-all;
  border-bottom: 1px solid rgba(18, 24, 28, .3);
  padding-bottom: 2px;
  transition: color .16s var(--ease), border-color .16s var(--ease);
}

.page-contact .pc-mono:hover,
.page-contact .pc-mono:focus-visible {
  color: #B4431A;
  border-bottom-color: var(--orange);
}

.page-contact .pc-mono--addr {
  border-bottom: 0;
  padding-bottom: 0;
  font-size: 14.5px;
}

.page-contact .pc-contacts__hint {
  display: block;
  margin-top: 8px;
  font-size: 12.5px;
  line-height: 1.62;
  color: rgba(18, 24, 28, .6);
}

.page-contact .pc-panel__foot {
  margin: 22px 0 0;
  padding-top: 16px;
  border-top: 1px dashed rgba(18, 24, 28, .2);
  font-size: 12.5px;
  line-height: 1.68;
  color: rgba(18, 24, 28, .6);
}

/* ---------- 到访 ---------- */
.page-contact .pc-visit {
  background: var(--paper);
  color: var(--text-dark);
  padding: 84px 0;
}

.page-contact .pc-visit__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
}

.page-contact .pc-visit__p {
  margin: 0 0 22px;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(18, 24, 28, .74);
}

.page-contact .pc-visit__media {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--pc-card-line);
}

/* ---------- 常见疑问 ---------- */
.page-contact .pc-faq {
  background: var(--mist);
  color: var(--text-dark);
  padding: 84px 0 92px;
}

.page-contact .pc-q {
  border-top: 1px solid var(--pc-card-line);
}

.page-contact .pc-q:last-child {
  border-bottom: 1px solid var(--pc-card-line);
}

.page-contact .pc-q > summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 20px 0;
}

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

.page-contact .pc-q h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16.5px;
  line-height: 1.55;
  letter-spacing: -.01em;
  color: var(--text-dark);
  transition: color .16s var(--ease);
}

.page-contact .pc-q > summary:hover h3 {
  color: var(--pc-deep-cyan);
}

.page-contact .pc-q__sign {
  width: 11px;
  height: 11px;
  border-right: 2px solid var(--pc-deep-cyan);
  border-bottom: 2px solid var(--pc-deep-cyan);
  transform: rotate(45deg);
  transition: transform .18s var(--ease);
}

.page-contact .pc-q[open] .pc-q__sign {
  transform: rotate(225deg);
}

.page-contact .pc-q__body {
  padding: 0 0 22px;
}

.page-contact .pc-q__body p {
  margin: 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(18, 24, 28, .74);
}

/* ---------- 收尾 ---------- */
.page-contact .pc-close {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: #fff;
  padding: 80px 0 90px;
}

.page-contact .pc-close::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 12% 112%, rgba(0, 229, 255, .22), transparent 56%),
    radial-gradient(circle at 88% -12%, rgba(124, 255, 79, .16), transparent 52%);
  pointer-events: none;
}

.page-contact .pc-close__inner {
  position: relative;
  z-index: 1;
}

.page-contact .pc-close__line {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 7.4vw, 62px);
  line-height: 1.04;
  letter-spacing: -.03em;
  color: #fff;
}

.page-contact .pc-close__sub {
  margin: 0 0 28px;
  max-width: 48ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .pc-close__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 桌面端 ---------- */
@media (min-width: 700px) {
  .page-contact .pc-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }
}

@media (min-width: 900px) {
  .page-contact .pc-visit__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .92fr);
    gap: 64px;
    align-items: center;
  }
}

@media (min-width: 980px) {
  .page-contact .pc-split {
    grid-template-columns: minmax(0, 1.62fr) minmax(0, 1fr);
    gap: 72px;
    align-items: start;
  }

  .page-contact .pc-split__right {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-contact .pc-step {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 22px;
  }

  .page-contact .pc-step__num {
    font-size: 40px;
  }
}

@media (min-width: 1180px) {
  .page-contact .pc-dirs {
    padding-bottom: 110px;
  }
}

/* ---------- 动效兼容 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-dir,
  .page-contact .pc-dir__sign,
  .page-contact .pc-step__num,
  .page-contact .pc-mono,
  .page-contact .pc-q__sign,
  .page-contact .pc-q h3 {
    transition: none;
  }

  .page-contact .pc-dir:hover {
    transform: none;
  }
}