.page-contact {
  --pc-line: rgba(53, 242, 214, .22);
  --pc-line-soft: rgba(53, 242, 214, .10);
  --pc-ink-soft: rgba(6, 17, 15, .16);
}

/* ---------- 首屏：三块大字联络牌 ---------- */
.page-contact .pc-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(120% 88% at 90% -6%, rgba(53, 242, 214, .12), transparent 58%),
    radial-gradient(80% 60% at 4% 104%, rgba(255, 106, 43, .07), transparent 62%),
    linear-gradient(180deg, var(--ink-900) 0%, #081614 100%);
  padding-top: calc(var(--bar-h) + var(--rail-h) + clamp(20px, 5vw, 48px));
  padding-bottom: clamp(44px, 7vw, 84px);
}

.page-contact .pc-hero .sb-breadcrumb {
  margin-bottom: clamp(20px, 4vw, 36px);
}

.page-contact .pc-hero__top {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-contact .pc-hero__intro {
  min-width: 0;
}

.page-contact .pc-hero__title {
  margin: 14px 0 18px;
  color: var(--paper);
  font-size: clamp(32px, 5.4vw, 62px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 800;
  max-width: 15em;
}

.page-contact .pc-hero__lede {
  margin: 0;
  max-width: 34em;
  color: rgba(244, 241, 234, .78);
  font-size: 17px;
  line-height: 1.75;
}

.page-contact .pc-hero__media {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--pc-line-soft);
  background: var(--ink-800);
  aspect-ratio: 16 / 10;
}

.page-contact .pc-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.82) brightness(.82);
}

/* 联络牌 */
.page-contact .pc-channels {
  display: grid;
  gap: 0;
  margin-top: clamp(36px, 6vw, 64px);
  border-top: 1px solid var(--pc-line);
}

.page-contact .pc-channel {
  position: relative;
  padding: 22px 0 28px;
  border-bottom: 1px solid var(--pc-line);
}

.page-contact .pc-channel__no {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--orange-500);
}

.page-contact .pc-channel__label {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .18em;
  color: var(--gray-500);
}

.page-contact .pc-channel__value {
  margin: 10px 0 12px;
  font-family: var(--font-mono);
  font-size: clamp(18px, 2.7vw, 25px);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--cyan-400);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .pc-channel__desc {
  margin: 0;
  max-width: 26em;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(244, 241, 234, .66);
}

.page-contact .pc-channel__rule {
  display: block;
  width: 56px;
  height: 2px;
  margin-top: 20px;
  background: linear-gradient(90deg, var(--cyan-400), rgba(53, 242, 214, 0));
}

/* ---------- 暖白准备区 ---------- */
.page-contact .pc-prep {
  background: var(--paper);
  color: var(--ink-900);
  padding: clamp(48px, 8vw, 96px) 0;
}

.page-contact .pc-prep__inner {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-contact .pc-prep__media {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-700);
  aspect-ratio: 1;
  box-shadow: 0 28px 56px -34px rgba(6, 17, 15, .55);
}

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

.page-contact .pc-prep__body {
  min-width: 0;
}

.page-contact .pc-prep .sb-eyebrow {
  color: var(--ink-700);
}

.page-contact .pc-prep .sb-eyebrow::before {
  background: var(--orange-500);
}

.page-contact .pc-prep__title {
  margin: 12px 0 14px;
  font-size: clamp(26px, 3.6vw, 42px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--ink-900);
  max-width: 18em;
}

.page-contact .pc-prep__lede {
  margin: 0 0 clamp(20px, 3vw, 30px);
  max-width: 34em;
  font-size: 16px;
  line-height: 1.75;
  color: rgba(6, 17, 15, .72);
}

/* 勾选清单 */
.page-contact .pc-checks {
  list-style: none;
  margin: 0 0 clamp(24px, 4vw, 36px);
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .pc-check {
  position: relative;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--pc-ink-soft);
  background: rgba(255, 255, 255, .55);
  cursor: pointer;
  transition: border-color .2s var(--ease), background .2s var(--ease);
}

.page-contact .pc-check:hover {
  border-color: rgba(6, 17, 15, .34);
}

.page-contact .pc-check:has(.pc-check__input:checked) {
  border-color: var(--cyan-400);
  background: rgba(53, 242, 214, .16);
}

.page-contact .pc-check__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

.page-contact .pc-check__mark {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border: 2px solid rgba(6, 17, 15, .34);
  border-radius: 3px;
  background: #fff;
  position: relative;
  transition: background .18s var(--ease), border-color .18s var(--ease);
}

.page-contact .pc-check__mark::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 0;
  width: 6px;
  height: 11px;
  border-right: 2px solid var(--ink-900);
  border-bottom: 2px solid var(--ink-900);
  transform: rotate(42deg) scale(0);
  transform-origin: center;
  transition: transform .18s var(--ease);
}

.page-contact .pc-check__input:checked ~ .pc-check__mark {
  background: var(--cyan-400);
  border-color: var(--cyan-400);
}

.page-contact .pc-check__input:checked ~ .pc-check__mark::after {
  transform: rotate(42deg) scale(1);
}

.page-contact .pc-check__input:focus-visible ~ .pc-check__mark {
  outline: 2px solid var(--ink-700);
  outline-offset: 2px;
}

.page-contact .pc-check__label {
  display: block;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink-900);
}

.page-contact .pc-check__hint {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  font-weight: 400;
  line-height: 1.6;
  color: rgba(6, 17, 15, .58);
}

/* 三步提示 */
.page-contact .pc-steps {
  list-style: none;
  counter-reset: pcstep;
  margin: 0 0 clamp(20px, 3vw, 28px);
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--pc-ink-soft);
}

.page-contact .pc-steps li {
  counter-increment: pcstep;
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 0 12px;
  padding: 16px 0;
  border-bottom: 1px solid var(--pc-ink-soft);
}

.page-contact .pc-steps li::before {
  content: "0" counter(pcstep);
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--orange-500);
  padding-top: 2px;
}

.page-contact .pc-steps strong {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink-900);
}

.page-contact .pc-steps span {
  display: block;
  margin-top: 4px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(6, 17, 15, .68);
}

.page-contact .pc-prep__link {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(6, 17, 15, .66);
}

.page-contact .pc-prep__link a {
  color: var(--ink-700);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: var(--orange-500);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

/* ---------- 合作洽谈 ---------- */
.page-contact .pc-collab {
  position: relative;
  background:
    linear-gradient(180deg, var(--ink-800) 0%, var(--ink-900) 100%);
  padding: clamp(48px, 8vw, 92px) 0;
  border-top: 1px solid var(--pc-line-soft);
}

.page-contact .pc-collab__head {
  max-width: 40em;
  margin-bottom: clamp(26px, 4vw, 44px);
}

.page-contact .pc-collab__title {
  margin: 12px 0 14px;
  font-size: clamp(26px, 3.8vw, 44px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--paper);
}

.page-contact .pc-collab__lede {
  margin: 0;
  max-width: 32em;
  font-size: 16px;
  line-height: 1.75;
  color: rgba(244, 241, 234, .66);
}

.page-contact .pc-collab__grid {
  display: grid;
  gap: 12px;
}

.page-contact .pc-collab-card {
  border: 1px solid var(--pc-line-soft);
  border-radius: var(--radius);
  background: rgba(14, 42, 36, .46);
  overflow: hidden;
  transition: border-color .22s var(--ease), background .22s var(--ease);
}

.page-contact .pc-collab-card[open] {
  border-color: var(--pc-line);
  background: rgba(14, 42, 36, .72);
}

.page-contact .pc-collab-card > summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 18px;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .pc-collab-card > summary:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: -3px;
}

.page-contact .pc-collab-card__tag {
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--orange-300);
}

.page-contact .pc-collab-card__name {
  flex: 1 1 auto;
  min-width: 0;
  font-size: clamp(17px, 2.1vw, 21px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .pc-collab-card__toggle {
  flex: 0 0 auto;
  width: 12px;
  height: 12px;
  border-right: 2px solid var(--cyan-400);
  border-bottom: 2px solid var(--cyan-400);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform .22s var(--ease);
}

.page-contact .pc-collab-card[open] .pc-collab-card__toggle {
  transform: rotate(-135deg) translate(-2px, -2px);
}

.page-contact .pc-collab-card__body {
  padding: 0 18px 22px;
  border-top: 1px solid var(--pc-line-soft);
}

.page-contact .pc-collab-card__body > p {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(244, 241, 234, .74);
}

.page-contact .pc-collab-card__sub {
  margin: 18px 0 8px !important;
  font-family: var(--font-mono);
  font-size: 12px !important;
  letter-spacing: .14em;
  color: var(--cyan-400) !important;
}

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

.page-contact .pc-collab-card__body li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(244, 241, 234, .62);
}

.page-contact .pc-collab-card__body li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 1px;
  background: var(--orange-500);
}

.page-contact .pc-collab-card__body a,
.page-contact .pc-collab__foot a {
  color: var(--cyan-300);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .pc-collab__foot {
  margin: clamp(24px, 4vw, 36px) 0 0;
  max-width: 44em;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(244, 241, 234, .58);
}

/* ---------- 回复节奏 ---------- */
.page-contact .pc-hours {
  background: var(--ink-900);
  border-top: 1px solid var(--pc-line);
  padding: clamp(44px, 7vw, 84px) 0 clamp(56px, 9vw, 108px);
}

.page-contact .pc-hours__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-contact .pc-hours__title {
  margin: 12px 0 14px;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--paper);
}

.page-contact .pc-hours__lede {
  margin: 0;
  max-width: 26em;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(244, 241, 234, .62);
}

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

.page-contact .pc-hours__item {
  padding: 20px 0;
  border-bottom: 1px solid var(--pc-line-soft);
}

.page-contact .pc-hours__item dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gray-500);
}

.page-contact .pc-hours__val {
  display: block;
  margin: 8px 0 8px;
  font-size: clamp(20px, 2.8vw, 28px);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--cyan-400);
  overflow-wrap: anywhere;
}

.page-contact .pc-hours__note {
  margin: 0;
  max-width: 28em;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(244, 241, 234, .58);
}

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

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

  .page-contact .pc-collab__grid > .pc-collab-card:first-child {
    grid-column: 1 / -1;
  }

  .page-contact .pc-hours__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-top: none;
    gap: 0 clamp(16px, 2.4vw, 32px);
  }

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

@media (min-width: 900px) {
  .page-contact .pc-hero__top {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-contact .pc-hero__media {
    aspect-ratio: 4 / 3;
    clip-path: polygon(10% 0, 100% 0, 100% 100%, 0 100%, 0 16%);
    border-radius: 0 var(--radius) var(--radius) var(--radius);
  }

  .page-contact .pc-channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-top: none;
  }

  .page-contact .pc-channel {
    padding: 24px clamp(16px, 2.2vw, 30px) 30px;
    border-bottom: none;
    border-top: 1px solid var(--pc-line);
    border-left: 1px solid var(--pc-line-soft);
  }

  .page-contact .pc-channel:first-child {
    border-left: none;
    padding-left: 0;
  }

  .page-contact .pc-channel:last-child {
    padding-right: 0;
  }

  .page-contact .pc-prep__inner {
    grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr);
    gap: clamp(32px, 4.5vw, 64px);
  }

  .page-contact .pc-collab__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }

  .page-contact .pc-collab__grid > .pc-collab-card:first-child {
    grid-column: auto;
  }

  .page-contact .pc-hours__grid {
    grid-template-columns: minmax(0, .8fr) minmax(0, 1.4fr);
    align-items: start;
  }
}

@media (min-width: 1180px) {
  .page-contact .pc-hero__title {
    font-size: 66px;
  }
}