.page-contact {
  --pc-radius: var(--r-card);
  --pc-gap: clamp(18px, 2.4vw, 28px);

  background: var(--off-white);
  color: var(--graphite);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: clip;
}

.page-contact *,
.page-contact *::before,
.page-contact *::after {
  box-sizing: border-box;
}

.page-contact img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.04;
}

.page-contact p {
  margin: 0;
}

.page-contact .pc-crumb-sep {
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(255, 255, 255, 0.4);
}

/* ---------- Hero ---------- */

.page-contact .pc-hero {
  position: relative;
  padding-bottom: clamp(52px, 7vw, 92px);
  color: var(--white);
  background:
    radial-gradient(88% 70% at 88% 6%, rgba(216, 244, 64, 0.16), transparent 62%),
    linear-gradient(178deg, var(--ink-green) 0%, var(--ink-green-deep) 100%);
  overflow: hidden;
}

.page-contact .pc-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--fluo) 0 24%, rgba(216, 244, 64, 0.12) 24% 100%);
}

.page-contact .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-top: clamp(18px, 2.6vw, 30px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.page-contact .breadcrumbs__item {
  color: rgba(255, 255, 255, 0.62);
  text-decoration: none;
}

.page-contact .breadcrumbs__item[aria-current="page"] {
  color: var(--fluo);
}

.page-contact .pc-hero__inner {
  display: grid;
  gap: clamp(30px, 4vw, 52px);
  padding-top: clamp(26px, 3.6vw, 46px);
}

.page-contact .pc-kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fluo);
  margin-bottom: 16px;
}

.page-contact .pc-hero__title {
  font-size: clamp(34px, 6.4vw, 76px);
  line-height: 0.98;
  color: var(--white);
}

.page-contact .pc-hero__lede {
  margin-top: 22px;
  max-width: 42ch;
  font-size: 16.5px;
  line-height: 1.78;
  color: rgba(255, 255, 255, 0.8);
}

.page-contact .pc-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.page-contact .pc-hero__media img {
  width: 100%;
  border-radius: var(--pc-radius);
  object-fit: cover;
  aspect-ratio: 20 / 9;
}

.page-contact .pc-hero__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px 18px;
  margin: clamp(34px, 4.6vw, 60px) 0 0;
  padding-top: 26px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.page-contact .pc-hero__facts dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.52);
}

.page-contact .pc-hero__facts dd {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.2vw, 34px);
  font-weight: 700;
  line-height: 1;
  color: var(--fluo);
}

/* ---------- Band / section head ---------- */

.page-contact .pc-band {
  padding: clamp(58px, 8vw, 116px) 0;
}

.page-contact .pc-band--paper {
  background: var(--off-white);
}

.page-contact .pc-band--line {
  background: var(--line-grey);
}

.page-contact .pc-band--indigo {
  background:
    radial-gradient(80% 60% at 12% 0%, rgba(216, 244, 64, 0.1), transparent 60%),
    var(--indigo);
  color: var(--white);
}

.page-contact .pc-band--deep {
  background: var(--ink-green);
  color: var(--white);
}

.page-contact .pc-head {
  max-width: 760px;
  margin-bottom: clamp(32px, 4vw, 54px);
}

.page-contact .pc-eyebrow {
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--wine);
}

.page-contact .pc-band--indigo .pc-eyebrow,
.page-contact .pc-band--deep .pc-eyebrow {
  color: var(--fluo);
}

.page-contact .pc-title {
  font-size: clamp(29px, 4.4vw, 54px);
  color: var(--ink-green);
}

.page-contact .pc-band--indigo .pc-title,
.page-contact .pc-band--deep .pc-title {
  color: var(--white);
}

.page-contact .pc-lede {
  margin-top: 18px;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
}

.page-contact .pc-band--indigo .pc-lede,
.page-contact .pc-band--deep .pc-lede {
  color: rgba(255, 255, 255, 0.78);
}

.page-contact .pc-head--split {
  max-width: none;
  display: grid;
  gap: clamp(24px, 3.4vw, 44px);
  align-items: center;
}

.page-contact .pc-head--split .pc-lede {
  max-width: 46ch;
}

.page-contact .pc-head__media img {
  width: 100%;
  border-radius: var(--pc-radius);
  object-fit: cover;
  aspect-ratio: 3 / 2;
  border: 1px solid rgba(255, 255, 255, 0.16);
}

/* ---------- 合作类型 ---------- */

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

.page-contact .pc-type {
  position: relative;
  background: var(--white);
  border: 1px solid rgba(11, 46, 36, 0.1);
  border-radius: var(--pc-radius);
  overflow: hidden;
  transition: box-shadow 0.26s var(--ease), transform 0.26s var(--ease);
}

.page-contact .pc-type:hover {
  transform: translateY(-3px);
}

.page-contact .pc-type[open] {
  box-shadow: 0 22px 46px -26px rgba(11, 46, 36, 0.5);
}

.page-contact .pc-type > summary {
  position: relative;
  display: grid;
  gap: 10px;
  padding: 32px 22px 24px;
  list-style: none;
  cursor: pointer;
}

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

.page-contact .pc-type > summary::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: var(--pc-accent, var(--ink-green));
}

.page-contact .pc-type > summary::after {
  content: "＋";
  position: absolute;
  top: 26px;
  right: 20px;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--pc-accent, var(--ink-green));
  transition: transform 0.22s var(--ease);
}

.page-contact .pc-type[open] > summary::after {
  transform: rotate(45deg);
}

.page-contact .pc-type__index {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--pc-accent, var(--ink-green));
}

.page-contact .pc-type__name {
  font-size: clamp(20px, 2.2vw, 24px);
  color: var(--ink-green);
}

.page-contact .pc-type__desc {
  font-size: 14.5px;
  line-height: 1.72;
}

.page-contact .pc-type__body {
  display: grid;
  gap: 16px;
  padding: 18px 22px 26px;
  border-top: 1px dashed rgba(11, 46, 36, 0.14);
}

.page-contact .pc-type__row {
  display: grid;
  gap: 6px;
}

.page-contact .pc-type__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--pc-accent, var(--wine));
}

.page-contact .pc-type__text {
  font-size: 14.5px;
  line-height: 1.74;
}

.page-contact .pc-type--a { --pc-accent: var(--ink-green); }
.page-contact .pc-type--b { --pc-accent: var(--indigo); }
.page-contact .pc-type--c { --pc-accent: var(--wine); }
.page-contact .pc-type--d { --pc-accent: var(--ink-green-deep); }

/* ---------- 五步流程 ---------- */

.page-contact .pc-flow__list {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .pc-step__node {
  position: relative;
  z-index: 1;
  background: rgba(21, 18, 46, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--pc-radius);
  overflow: hidden;
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease);
}

.page-contact .pc-step__node:hover {
  border-color: rgba(216, 244, 64, 0.45);
}

.page-contact .pc-step__node[open] {
  background: rgba(216, 244, 64, 0.09);
  border-color: rgba(216, 244, 64, 0.6);
}

.page-contact .pc-step__head {
  display: grid;
  justify-items: start;
  gap: 12px;
  padding: 18px 16px 20px;
  list-style: none;
  cursor: pointer;
}

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

.page-contact .pc-step__num {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: var(--r-pill);
  background: var(--fluo);
  color: var(--ink-green-deep);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
}

.page-contact .pc-step__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 20px;
  letter-spacing: -0.01em;
  line-height: 1.15;
  color: var(--white);
}

.page-contact .pc-step__time {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--fluo-soft);
}

.page-contact .pc-step__body {
  padding: 0 16px 20px;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(255, 255, 255, 0.76);
}

/* ---------- 对接支持 ---------- */

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

.page-contact .pc-give {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 28px 22px;
  background: var(--white);
  border: 1px solid rgba(11, 46, 36, 0.08);
  border-radius: var(--pc-radius);
}

.page-contact .pc-give__mark {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--wine);
}

.page-contact .pc-give__name {
  font-size: 21px;
  color: var(--ink-green);
}

.page-contact .pc-give__text {
  font-size: 14.5px;
  line-height: 1.74;
}

/* ---------- 联系渠道 ---------- */

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

.page-contact .pc-channel {
  display: grid;
  gap: 12px;
  align-content: start;
  padding: 28px 22px 26px;
  background: var(--white);
  border-radius: var(--pc-radius);
  border-top: 5px solid var(--ink-green);
  box-shadow: 0 18px 40px -32px rgba(11, 46, 36, 0.6);
}

.page-contact .pc-channel__label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--graphite);
}

.page-contact .pc-channel__value {
  font-family: var(--font-mono);
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 700;
  line-height: 1.36;
  color: var(--ink-green);
  word-break: break-word;
}

.page-contact .pc-channel__value--sm {
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.55;
}

.page-contact .pc-channel__note {
  font-size: 14px;
  line-height: 1.72;
}

/* ---------- 回复时间与提交清单 ---------- */

.page-contact .pc-respond {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 4vw, 56px);
}

.page-contact .pc-respond__hours {
  display: inline-block;
  margin-top: 24px;
  padding: 10px 22px;
  border-radius: var(--r-pill);
  background: var(--fluo);
  color: var(--ink-green-deep);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.page-contact .pc-checklist__title {
  font-size: 22px;
  color: var(--fluo);
}

.page-contact .pc-checklist {
  display: grid;
  gap: 12px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .pc-checklist li {
  position: relative;
  padding-left: 26px;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.86);
}

.page-contact .pc-checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: calc(0.86em - 1px);
  width: 12px;
  height: 2px;
  background: var(--fluo);
}

.page-contact .pc-respond__hint {
  margin-top: 22px;
  font-size: 13.5px;
  line-height: 1.72;
  color: rgba(255, 255, 255, 0.6);
}

/* ---------- 常见合作问题 ---------- */

.page-contact .pc-faq {
  max-width: 900px;
}

.page-contact .pc-faq__item {
  margin-bottom: 12px;
  background: var(--white);
  border: 1px solid rgba(11, 46, 36, 0.08);
  border-radius: 14px;
  overflow: hidden;
}

.page-contact .pc-faq__item > summary {
  position: relative;
  padding: 18px 54px 18px 20px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(17px, 2vw, 19px);
  letter-spacing: -0.01em;
  line-height: 1.3;
  color: var(--ink-green);
}

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

.page-contact .pc-faq__item > summary::after {
  content: "＋";
  position: absolute;
  top: 17px;
  right: 20px;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1.3;
  color: var(--wine);
  transition: transform 0.22s var(--ease);
}

.page-contact .pc-faq__item[open] > summary::after {
  transform: rotate(45deg);
}

.page-contact .pc-faq__item > p {
  padding: 0 20px 22px;
  font-size: 14.5px;
  line-height: 1.76;
}

/* ---------- 收束 ---------- */

.page-contact .pc-outro {
  position: relative;
  padding: clamp(66px, 9vw, 132px) 0 clamp(66px, 8vw, 118px);
  color: var(--white);
  background:
    radial-gradient(70% 90% at 88% 0%, rgba(216, 244, 64, 0.14), transparent 60%),
    linear-gradient(180deg, var(--ink-green-deep) 0%, var(--ink-green) 100%);
  overflow: hidden;
}

.page-contact .pc-outro__eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.62);
  margin-bottom: 20px;
}

.page-contact .pc-outro__title {
  font-size: clamp(36px, 7.6vw, 96px);
  line-height: 0.94;
  letter-spacing: -0.03em;
  color: var(--fluo);
}

.page-contact .pc-outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(28px, 3.4vw, 44px);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-contact .pc-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

@media (min-width: 900px) {
  .page-contact .pc-hero__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    align-items: end;
  }

  .page-contact .pc-head--split {
    grid-template-columns: minmax(0, 6fr) minmax(0, 4fr);
  }

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

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

  .page-contact .pc-respond__right {
    padding-left: clamp(22px, 3vw, 40px);
    border-left: 1px solid rgba(255, 255, 255, 0.14);
  }
}

@media (min-width: 1000px) {
  .page-contact .pc-flow__list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 18px;
    padding-top: 26px;
  }

  .page-contact .pc-flow__list::before {
    content: "";
    position: absolute;
    left: 5%;
    right: 5%;
    top: 48px;
    height: 2px;
    background: repeating-linear-gradient(
      90deg,
      rgba(216, 244, 64, 0.55) 0 12px,
      transparent 12px 22px
    );
  }
}

@media (min-width: 1080px) {
  .page-contact .pc-types__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    align-items: start;
  }

  .page-contact .pc-type--b {
    margin-top: 36px;
  }

  .page-contact .pc-type--c {
    margin-top: 12px;
  }

  .page-contact .pc-type--d {
    margin-top: 54px;
  }
}

@media (min-width: 1200px) {
  .page-contact .pc-give__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-type,
  .page-contact .pc-type > summary::after,
  .page-contact .pc-step__node,
  .page-contact .pc-faq__item > summary::after {
    transition: none;
  }

  .page-contact .pc-type:hover {
    transform: none;
  }
}
<<<END>>>