.page-contact {
  --pc-r: 4px;
  --pc-edge: 1px solid var(--line-600);
  --pc-card-bg: #0C1A16;
  display: block;
  width: 100%;
  overflow-x: hidden;
  background: var(--ink-950);
  color: var(--mist-050);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

.page-contact .pc-wrap {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumbs {
  padding-top: 18px;
  font-size: 13px;
}
.page-contact .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-contact .breadcrumbs__item {
  display: inline-flex;
  align-items: center;
  color: var(--mist-300);
}
.page-contact .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--line-600);
}
.page-contact .breadcrumbs__link {
  color: var(--mist-300);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s ease, border-color .18s ease;
}
.page-contact .breadcrumbs__link:hover,
.page-contact .breadcrumbs__link:focus-visible {
  color: var(--cyan-400);
  border-bottom-color: var(--cyan-400);
}
.page-contact .breadcrumbs__link[aria-current="page"] {
  color: var(--mist-050);
  border-bottom-color: transparent;
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  display: grid;
  gap: 30px;
  padding: 26px 0 46px;
  position: relative;
}
.page-contact .pc-hero::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -160px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(43, 240, 208, .10), rgba(43, 240, 208, 0) 70%);
  pointer-events: none;
}
.page-contact .eyebrow {
  display: inline-block;
  margin: 0 0 16px;
  padding: 5px 11px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--cyan-400);
  border: 1px solid rgba(43, 240, 208, .32);
  border-radius: 999px;
  background: rgba(43, 240, 208, .05);
}
.page-contact .pc-hero__copy h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 6vw, 58px);
  line-height: 1.1;
  letter-spacing: .02em;
  color: var(--mist-050);
}
.page-contact .pc-hero__lede {
  margin: 0 0 14px;
  max-width: 36em;
  font-size: 16px;
  line-height: 1.78;
  color: var(--mist-300);
}
.page-contact .pc-hero__lede--sub {
  color: var(--mist-050);
  font-size: 15px;
  padding-left: 14px;
  border-left: 2px solid var(--amber-500);
}
.page-contact .pc-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0 26px;
}
.page-contact .pc-hero__facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line-600);
  border: var(--pc-edge);
  border-radius: var(--pc-r);
  overflow: hidden;
}
.page-contact .pc-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 12px;
  background: var(--pitch-900);
  font-size: 12px;
  line-height: 1.5;
  color: var(--mist-300);
}
.page-contact .pc-hero__facts .mono {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--cyan-400);
}
.page-contact .pc-hero__media {
  position: relative;
}
.page-contact .pc-hero__frame {
  overflow: hidden;
  border: var(--pc-edge);
  border-radius: var(--pc-r);
  background: var(--grad-night);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}
.page-contact .pc-hero__frame .img-frame__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 章节头 ---------- */
.page-contact .pc-sec-head {
  margin-bottom: 26px;
}
.page-contact .pc-sec-head__num {
  display: inline-block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--amber-500);
}
.page-contact .pc-sec-head h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3.6vw, 33px);
  line-height: 1.18;
  letter-spacing: .02em;
  color: var(--mist-050);
}
.page-contact .pc-sec-head p {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist-300);
}

/* ---------- 合作类型 ---------- */
.page-contact .pc-types {
  padding: 46px 0 52px;
  background: linear-gradient(180deg, var(--pitch-900) 0%, #0B1D18 62%, var(--ink-950) 100%);
  border-top: var(--pc-edge);
  border-bottom: var(--pc-edge);
}
.page-contact .pc-types__layout {
  display: grid;
  gap: 24px;
}
.page-contact .pc-types__rail-label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--mist-300);
}
.page-contact .pc-types__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}
.page-contact .pc-types__list li {
  flex: 0 0 auto;
}
.page-contact .pc-type-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  font-size: 14px;
  line-height: 1.2;
  white-space: nowrap;
  color: var(--mist-050);
  text-decoration: none;
  background: rgba(22, 69, 58, .55);
  border: 1px solid var(--line-600);
  border-radius: var(--pc-r);
  transition: border-color .2s ease, color .2s ease, background-color .2s ease;
}
.page-contact .pc-type-link .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan-400);
}
.page-contact .pc-type-link:hover,
.page-contact .pc-type-link:focus-visible {
  border-color: var(--cyan-400);
  color: var(--cyan-400);
  background: rgba(43, 240, 208, .07);
}
.page-contact .pc-types__panels {
  display: grid;
  gap: 18px;
}
.page-contact .pc-panel {
  position: relative;
  padding: 24px 20px;
  background: var(--pc-card-bg);
  border: var(--pc-edge);
  border-radius: var(--pc-r);
  scroll-margin-top: calc(var(--header-h) + 22px);
  transition: border-color .22s ease, box-shadow .22s ease;
}
.page-contact .pc-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 46px;
  height: 2px;
  background: var(--grad-path);
}
.page-contact .pc-panel:target {
  border-color: var(--cyan-400);
  box-shadow: 0 0 0 1px rgba(43, 240, 208, .26);
}
.page-contact .pc-panel__head {
  margin-bottom: 16px;
}
.page-contact .pc-panel__head h3 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.4;
  letter-spacing: .01em;
  color: var(--mist-050);
}
.page-contact .pc-panel__meta {
  margin: 0;
}
.page-contact .pc-panel__meta > div {
  padding: 13px 0;
  border-top: 1px solid var(--line-600);
}
.page-contact .pc-panel__meta dt {
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--amber-500);
}
.page-contact .pc-panel__meta dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist-300);
}
.page-contact .pc-panel__figure {
  margin-top: 18px;
  overflow: hidden;
  border: var(--pc-edge);
  border-radius: var(--pc-r);
  background: var(--pitch-900);
}
.page-contact .pc-panel__figure .img-frame__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-contact .pc-panel__link {
  display: inline-block;
  margin-top: 16px;
  font-size: 14px;
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 240, 208, .4);
  padding-bottom: 2px;
  transition: color .18s ease, border-color .18s ease;
}
.page-contact .pc-panel__link:hover,
.page-contact .pc-panel__link:focus-visible {
  color: var(--amber-500);
  border-bottom-color: var(--amber-500);
}

/* ---------- 四步流程 ---------- */
.page-contact .pc-flow {
  padding: 46px 0 50px;
  background:
    linear-gradient(180deg, rgba(30, 58, 51, .18), rgba(10, 15, 13, 0) 60%),
    var(--ink-950);
}
.page-contact .pc-flow__steps {
  position: relative;
  margin: 0;
  padding: 0 0 0 22px;
  list-style: none;
}
.page-contact .pc-flow__steps::before {
  content: "";
  position: absolute;
  top: 6px;
  bottom: 26px;
  left: 5px;
  width: 1px;
  background: linear-gradient(180deg, rgba(43, 240, 208, .55), rgba(255, 162, 58, .5));
}
.page-contact .pc-step {
  position: relative;
  padding: 0 0 26px 4px;
}
.page-contact .pc-step:last-child {
  padding-bottom: 0;
}
.page-contact .pc-step__dot {
  position: absolute;
  top: 5px;
  left: -22px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--amber-500);
  box-shadow: 0 0 0 4px rgba(255, 162, 58, .14);
}
.page-contact .pc-step__num {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan-400);
}
.page-contact .pc-step h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  letter-spacing: .02em;
  color: var(--mist-050);
}
.page-contact .pc-step p {
  margin: 0;
  max-width: 30em;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--mist-300);
}

/* ---------- 联系方式卡 ---------- */
.page-contact .pc-contact {
  padding: 8px 0 50px;
}
.page-contact .pc-contact__cut {
  padding: 1px;
  border-radius: var(--pc-r);
  background: var(--grad-path);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 34px), calc(100% - 34px) 100%, 0 100%);
}
.page-contact .pc-contact__card {
  padding: 28px 20px 30px;
  background: var(--grad-night);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 34px), calc(100% - 34px) 100%, 0 100%);
}
.page-contact .pc-contact__head h2 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3.4vw, 31px);
  line-height: 1.2;
  letter-spacing: .02em;
  color: var(--mist-050);
}
.page-contact .pc-contact__head p {
  margin: 0 0 22px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--mist-300);
}
.page-contact .pc-contact__list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-contact .pc-contact__item {
  display: grid;
  gap: 5px;
  padding: 15px 16px;
  background: rgba(14, 43, 35, .72);
  border: var(--pc-edge);
  border-radius: var(--pc-r);
}
.page-contact .pc-contact__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--amber-500);
}
.page-contact .pc-contact__value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: .01em;
  word-break: break-word;
  color: var(--mist-050);
}
.page-contact .pc-contact__note {
  font-size: 13px;
  line-height: 1.68;
  color: var(--mist-300);
}

/* ---------- 响应时效 ---------- */
.page-contact .pc-reply {
  padding: 44px 0 50px;
  background: var(--pitch-900);
  border-top: var(--pc-edge);
  border-bottom: var(--pc-edge);
}
.page-contact .pc-reply__grid {
  display: grid;
  gap: 26px;
}
.page-contact .pc-reply__intro h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3.6vw, 32px);
  line-height: 1.18;
  letter-spacing: .02em;
  color: var(--mist-050);
}
.page-contact .pc-reply__intro p {
  margin: 0 0 14px;
  max-width: 32em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist-300);
}
.page-contact .pc-reply__intro p:last-child {
  margin-bottom: 0;
}
.page-contact .pc-reply__qa {
  display: grid;
  gap: 10px;
}
.page-contact .disclosure {
  border: var(--pc-edge);
  border-radius: var(--pc-r);
  background: var(--pc-card-bg);
  overflow: hidden;
}
.page-contact .disclosure__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  width: 100%;
  padding: 15px 16px;
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.55;
  text-align: left;
  color: var(--mist-050);
  background: transparent;
  border: 0;
  cursor: pointer;
  transition: color .18s ease, background-color .18s ease;
}
.page-contact .disclosure__trigger:hover,
.page-contact .disclosure__trigger:focus-visible {
  color: var(--cyan-400);
  background: rgba(43, 240, 208, .06);
  outline: none;
}
.page-contact .disclosure__icon {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--amber-500);
}
.page-contact .disclosure__panel {
  padding: 0 16px 16px;
}
.page-contact .disclosure__panel p {
  margin: 0;
  font-size: 14px;
  line-height: 1.76;
  color: var(--mist-300);
}

/* ---------- 资料清单 ---------- */
.page-contact .pc-kit {
  padding: 46px 0 56px;
}
.page-contact .pc-kit__list {
  display: grid;
  gap: 1px;
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
  background: var(--line-600);
  border: var(--pc-edge);
  border-radius: var(--pc-r);
  overflow: hidden;
}
.page-contact .pc-kit__item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 12px;
  padding: 18px 16px;
  background: var(--pitch-900);
  transition: background-color .2s ease;
}
.page-contact .pc-kit__item:hover {
  background: var(--pitch-700);
}
.page-contact .pc-kit__num {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .1em;
  color: var(--cyan-400);
}
.page-contact .pc-kit__item h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  letter-spacing: .02em;
  color: var(--mist-050);
}
.page-contact .pc-kit__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.74;
  color: var(--mist-300);
}
.page-contact .pc-kit__foot {
  display: grid;
  gap: 16px;
  padding-top: 20px;
  border-top: var(--pc-edge);
}
.page-contact .pc-kit__foot p {
  margin: 0;
  max-width: 34em;
  font-size: 14px;
  line-height: 1.76;
  color: var(--mist-300);
}
.page-contact .pc-kit__foot a:not(.btn) {
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 240, 208, .4);
}
.page-contact .pc-kit__foot a:not(.btn):hover,
.page-contact .pc-kit__foot a:not(.btn):focus-visible {
  color: var(--amber-500);
  border-bottom-color: var(--amber-500);
}
.page-contact .pc-kit__foot .btn {
  justify-self: start;
}

/* ---------- 桌面端 ---------- */
@media (min-width: 768px) {
  .page-contact .pc-hero__facts li {
    padding: 18px 16px;
  }
  .page-contact .pc-kit__item {
    grid-template-columns: 54px minmax(0, 1fr);
    gap: 18px;
    padding: 22px 22px;
  }
  .page-contact .pc-contact__card {
    padding: 36px 32px 38px;
  }
  .page-contact .pc-contact__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .pc-contact__item:first-child {
    grid-column: 1 / -1;
  }
  .page-contact .pc-kit__foot {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-contact .pc-hero {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: 48px;
    align-items: center;
    padding: 40px 0 68px;
  }
  .page-contact .pc-types {
    padding: 56px 0 64px;
  }
  .page-contact .pc-types__layout {
    grid-template-columns: 218px minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }
  .page-contact .pc-types__rail {
    position: sticky;
    top: calc(var(--header-h) + 22px);
    align-self: start;
  }
  .page-contact .pc-types__list {
    flex-direction: column;
    gap: 6px;
    overflow: visible;
  }
  .page-contact .pc-type-link {
    width: 100%;
    border-left: 2px solid var(--line-600);
    border-top: 0;
    border-right: 0;
    border-bottom: 0;
    border-radius: 0;
    padding: 12px 12px 12px 14px;
    background: transparent;
  }
  .page-contact .pc-type-link:hover,
  .page-contact .pc-type-link:focus-visible {
    border-left-color: var(--cyan-400);
    background: rgba(43, 240, 208, .06);
  }
  .page-contact .pc-panel {
    padding: 30px 28px;
  }
  .page-contact .pc-panel__meta > div {
    display: grid;
    grid-template-columns: 116px minmax(0, 1fr);
    gap: 16px;
    align-items: start;
  }
  .page-contact .pc-panel__meta dt {
    margin-bottom: 0;
    padding-top: 3px;
  }
  .page-contact .pc-flow {
    padding: 56px 0 62px;
  }
  .page-contact .pc-flow__steps {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 26px;
    padding: 32px 0 0;
  }
  .page-contact .pc-flow__steps::before {
    top: 5px;
    bottom: auto;
    left: 0;
    right: 0;
    width: auto;
    height: 1px;
    background: var(--grad-path);
    opacity: .55;
  }
  .page-contact .pc-step {
    padding: 0;
  }
  .page-contact .pc-step__dot {
    position: absolute;
    top: 0;
    left: 0;
  }
  .page-contact .pc-contact {
    padding: 12px 0 62px;
  }
  .page-contact .pc-reply {
    padding: 54px 0 60px;
  }
  .page-contact .pc-reply__grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 52px;
    align-items: start;
  }
  .page-contact .pc-kit {
    padding: 56px 0 72px;
  }
  .page-contact .pc-kit__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .pc-kit__item {
    grid-template-columns: 48px minmax(0, 1fr);
    padding: 26px 24px;
  }
}

@media (min-width: 1180px) {
  .page-contact .pc-hero {
    gap: 64px;
  }
  .page-contact .pc-hero__frame .img-frame__img {
    min-height: 400px;
  }
  .page-contact .pc-types__layout {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 56px;
  }
}