.page-contact {
  padding-bottom: 24px;
}

/* ---------- 首屏封面 ---------- */
.page-contact .pc-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 5vw, 60px) 0 clamp(34px, 6vw, 74px);
  background:
    radial-gradient(120% 92% at 86% 4%, rgba(53, 224, 208, .17), transparent 58%),
    radial-gradient(80% 70% at 4% 100%, rgba(240, 67, 90, .1), transparent 62%),
    linear-gradient(180deg, #07192a 0%, var(--ink) 82%);
  border-bottom: 1px solid var(--line);
}

.page-contact .pc-hero::after {
  content: "";
  position: absolute;
  right: -14%;
  top: -32%;
  width: 58%;
  height: 168%;
  background: linear-gradient(90deg, transparent, rgba(53, 224, 208, .075) 46%, transparent);
  transform: rotate(14deg);
  pointer-events: none;
}

.page-contact .pc-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 30px;
}

.page-contact .pc-hero__lead {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

.page-contact .pc-hero__lead .crumb {
  margin-bottom: 4px;
}

.page-contact .pc-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 7.4vw, 62px);
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--white);
}

.page-contact .pc-hero h1::after {
  content: "";
  display: block;
  width: 60px;
  height: 4px;
  margin-top: 20px;
  background: var(--cyan);
}

.page-contact .pc-hero__lede {
  max-width: 46ch;
  margin: 4px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--steel);
}

.page-contact .pc-hero__facts {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
  margin: 8px 0 0;
  padding: 0;
}

.page-contact .pc-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px 16px;
  background: rgba(11, 37, 69, .72);
  border: 1px solid var(--line-soft);
  clip-path: polygon(12px 0, 100% 0, 100% 100%, 0 100%, 0 12px);
}

.page-contact .pc-hero__k {
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-contact .pc-hero__v {
  font-size: 15px;
  font-weight: 600;
  color: var(--white);
}

.page-contact .pc-hero__v.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
}

.page-contact .pc-hero__media {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-contact .pc-hero__media .figure {
  margin: 0;
}

.page-contact .pc-hero__media .figure__media {
  aspect-ratio: 16 / 9;
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-contact .pc-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: .88;
}

.page-contact .pc-hero__note {
  align-self: flex-end;
  color: var(--steel);
}

/* ---------- 渠道卡 ---------- */
.page-contact .pc-cards {
  display: grid;
  gap: 18px;
  margin-top: 34px;
}

.page-contact .pc-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px 22px 28px;
  background: var(--panel);
  border: 1px solid var(--line);
  transition: transform .28s var(--ease), border-color .28s var(--ease), background-color .28s var(--ease);
}

.page-contact .pc-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: var(--line-strong);
  transition: background-color .28s var(--ease);
}

.page-contact .pc-card--primary {
  background: linear-gradient(160deg, var(--layer) 0%, var(--panel) 72%);
  border-color: rgba(53, 224, 208, .38);
}

.page-contact .pc-card--primary::before {
  background: var(--cyan);
}

.page-contact .pc-card:hover,
.page-contact .pc-card:focus-within {
  transform: translateY(-2px);
  border-color: var(--line-strong);
}

.page-contact .pc-card--primary:hover {
  border-color: var(--cyan);
}

.page-contact .pc-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-contact .pc-card__rank {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--steel);
  letter-spacing: -.02em;
}

.page-contact .pc-card--primary .pc-card__rank {
  color: var(--cyan);
}

.page-contact .pc-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  line-height: 1.35;
  color: var(--white);
}

.page-contact .pc-card__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--steel);
}

.page-contact .pc-card__hint {
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  line-height: 1.7;
  color: var(--fog);
  opacity: .62;
  transition: opacity .28s var(--ease);
}

.page-contact .pc-card:hover .pc-card__hint,
.page-contact .pc-card:focus-within .pc-card__hint {
  opacity: 1;
}

/* ---------- 流程 ---------- */
.page-contact .pc-flow__figure {
  margin: 30px 0 0;
}

.page-contact .pc-flow__figure .figure__media {
  aspect-ratio: 12 / 7;
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
}

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

.page-contact .pc-flow {
  display: grid;
  gap: 0;
  margin-top: 30px;
  border-top: 1px solid var(--line);
}

.page-contact .pc-flow__node {
  position: relative;
  padding: 26px 22px 26px 30px;
  border-bottom: 1px solid var(--line-soft);
  border-left: 2px solid rgba(53, 224, 208, .28);
  transition: border-color .28s var(--ease), background-color .28s var(--ease);
}

.page-contact .pc-flow__node::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 34px;
  width: 10px;
  height: 10px;
  background: var(--ink);
  border: 2px solid var(--cyan);
  border-radius: 50%;
}

.page-contact .pc-flow__node:hover {
  background: rgba(22, 50, 79, .5);
  border-left-color: var(--cyan);
}

.page-contact .pc-flow__time {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(30px, 6vw, 42px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--cyan);
}

.page-contact .pc-flow__time .unit {
  margin-left: 6px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .12em;
  color: var(--steel);
}

.page-contact .pc-flow__name {
  margin: 12px 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  color: var(--white);
}

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

/* ---------- 清单 ---------- */
.page-contact .pc-prep__grid {
  display: grid;
  gap: 30px;
}

.page-contact .pc-prep__head .section__sub {
  max-width: 40ch;
}

.page-contact .pc-prep__tip {
  margin: 16px 0 0;
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--steel);
  opacity: .78;
}

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

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

.page-contact .pc-check__input {
  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: 16px 18px;
  background: var(--panel);
  border: 1px solid var(--line);
  cursor: pointer;
  transition: border-color .24s var(--ease), background-color .24s var(--ease), transform .24s var(--ease);
}

.page-contact .pc-check__label:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  background: var(--layer);
}

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

.page-contact .pc-check__box {
  position: relative;
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border: 2px solid var(--line-strong);
  background: transparent;
  transition: background-color .22s var(--ease), border-color .22s var(--ease);
}

.page-contact .pc-check__box::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 6px;
  height: 11px;
  border-right: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: rotate(45deg) scale(.35);
  opacity: 0;
  transition: transform .22s var(--ease), opacity .22s var(--ease);
}

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

.page-contact .pc-check__input:checked + .pc-check__label .pc-check__box::after {
  opacity: 1;
  transform: rotate(45deg) scale(1);
}

.page-contact .pc-check__input:checked + .pc-check__label {
  border-color: rgba(53, 224, 208, .42);
}

.page-contact .pc-check__text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-contact .pc-check__text strong {
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
}

.page-contact .pc-check__text span {
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--steel);
}

/* ---------- 合作 ---------- */
.page-contact .pc-coop__panel {
  display: grid;
  gap: 0;
  margin-top: 30px;
  background: linear-gradient(180deg, var(--panel) 0%, #091d38 100%);
  border: 1px solid var(--line);
}

.page-contact .pc-coop__body {
  padding: 30px 24px 28px;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .pc-coop__body .section__title {
  margin: 12px 0 14px;
}

.page-contact .pc-coop__body > p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.82;
  color: var(--steel);
}

.page-contact .pc-coop__mail {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin: 20px 0 0;
}

.page-contact .pc-coop__addr {
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
  color: var(--cyan);
  padding-bottom: 4px;
  border-bottom: 2px solid rgba(53, 224, 208, .45);
}

.page-contact .pc-coop__note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.74;
  color: var(--steel);
  opacity: .82;
}

.page-contact .pc-coop__aside {
  padding: 28px 24px 30px;
}

.page-contact .pc-coop__aside-title {
  margin: 0 0 18px;
  font-size: 11px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--yellow);
}

.page-contact .pc-coop__list {
  list-style: none;
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
}

.page-contact .pc-coop__list li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-left: 16px;
  border-left: 1px solid var(--line);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--steel);
}

.page-contact .pc-coop__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--cyan);
}

/* ---------- 其他说明 ---------- */
.page-contact .pc-notes__title {
  margin-bottom: 22px;
}

.page-contact .pc-notes__dl {
  margin: 0;
  border-top: 1px solid var(--line);
}

.page-contact .pc-notes__row {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .pc-notes__row dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-contact .pc-notes__row dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--fog);
}

.page-contact .pc-notes__row dd a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 208, .4);
  transition: border-color .22s var(--ease);
}

.page-contact .pc-notes__row dd a:hover {
  border-bottom-color: var(--cyan);
}

.page-contact .pc-notes__legal {
  margin: 26px 0 0;
  font-size: 12px;
  line-height: 1.9;
  letter-spacing: .02em;
  color: var(--steel);
  opacity: .66;
}

/* ---------- 桌面增强 ---------- */
@media (min-width: 780px) {
  .page-contact .pc-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    align-items: end;
    gap: 52px;
  }

  .page-contact .pc-cards {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
    gap: 20px;
  }

  .page-contact .pc-card--primary {
    padding: 34px 30px 36px;
  }

  .page-contact .pc-flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-top: 1px solid var(--line);
  }

  .page-contact .pc-flow__node {
    padding: 32px 26px 34px 30px;
    border-bottom: none;
    border-right: 1px solid var(--line-soft);
  }

  .page-contact .pc-flow__node:last-child {
    border-right: none;
  }

  .page-contact .pc-flow__node::before {
    top: -6px;
    left: 26px;
  }

  .page-contact .pc-flow__node {
    border-left: none;
    border-top: 2px solid rgba(53, 224, 208, .28);
  }

  .page-contact .pc-flow__node:hover {
    border-top-color: var(--cyan);
  }

  .page-contact .pc-prep__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 52px;
    align-items: start;
  }

  .page-contact .pc-coop__panel {
    grid-template-columns: minmax(0, 8fr) minmax(0, 5fr);
  }

  .page-contact .pc-coop__body {
    padding: 40px 36px 42px;
    border-bottom: none;
    border-right: 1px solid var(--line-soft);
  }

  .page-contact .pc-coop__aside {
    padding: 40px 32px 42px;
  }

  .page-contact .pc-notes__row {
    grid-template-columns: minmax(0, 130px) minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
  }
}

@media (min-width: 1080px) {
  .page-contact .pc-hero {
    padding-top: 70px;
  }

  .page-contact .pc-notes__row dt {
    text-align: right;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-card,
  .page-contact .pc-check__label,
  .page-contact .pc-check__box,
  .page-contact .pc-check__box::after,
  .page-contact .pc-card__hint,
  .page-contact .pc-flow__node {
    transition: none;
  }

  .page-contact .pc-card:hover,
  .page-contact .pc-card:focus-within,
  .page-contact .pc-check__label:hover {
    transform: none;
  }
}