.page-contact {
  --pc-line: rgba(241, 238, 227, 0.13);
  --pc-line-strong: rgba(241, 238, 227, 0.34);
  --pc-shadow: 4px 4px 0 var(--stone);
  --pc-shadow-deep: 6px 6px 0 rgba(11, 15, 13, 0.55);
  background: var(--carbon);
  color: var(--chalk);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-contact .pc-wrap {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-bottom: 8px;
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  padding-block: 24px 48px;
}

.page-contact .pc-hero__body {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.page-contact .pc-hero__body > .bb-crumbs {
  margin: 0 0 28px;
}

.page-contact .pc-hero__title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.3rem, 7vw, 4.6rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
  max-width: 13em;
}

.page-contact .pc-hero__title em {
  font-style: normal;
  color: var(--lime);
}

.page-contact .pc-hero__lead {
  margin: 0;
  max-width: 34em;
  font-size: clamp(1rem, 1.6vw, 1.125rem);
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .pc-portrait {
  position: relative;
  margin: 0;
  background: var(--stone);
  border: 2px solid var(--pc-line-strong);
  box-shadow: var(--pc-shadow-deep);
}

.page-contact .pc-portrait::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: var(--lime);
  z-index: 1;
}

.page-contact .pc-portrait__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: 230px;
  object-fit: cover;
}

.page-contact .pc-portrait__cap {
  display: block;
  padding: 10px 14px;
  border-top: 1px solid var(--pc-line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mist);
}

/* ---------- 通用区块 ---------- */
.page-contact .pc-sec {
  padding-block: 56px;
  border-top: 1px solid var(--pc-line);
}

.page-contact .pc-sec__head {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-bottom: 20px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--pc-line);
}

.page-contact .pc-sec__head .bb-h2 {
  margin: 0;
}

.page-contact .pc-sec__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 三个渠道 ---------- */
.page-contact .pc-channels {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-contact .pc-channel {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 232px;
  padding: 26px 22px 22px;
  background: var(--ink);
  color: var(--chalk);
  border: 2px solid var(--pc-line-strong);
  box-shadow: var(--pc-shadow);
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease),
    border-color 0.2s var(--ease), box-shadow 0.2s var(--ease),
    transform 0.2s var(--ease);
}

.page-contact .pc-channel:hover,
.page-contact .pc-channel:focus-within {
  background: var(--chalk);
  color: var(--carbon);
  border-color: var(--chalk);
  box-shadow: 4px 4px 0 var(--lime);
  transform: translate(-2px, -2px);
}

.page-contact .pc-channel__no {
  position: absolute;
  top: 20px;
  right: 20px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--moss);
  transition: color 0.2s var(--ease);
}

.page-contact .pc-channel:hover .pc-channel__no {
  color: var(--clay);
}

.page-contact .pc-channel__kicker {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--lime);
  transition: color 0.2s var(--ease);
}

.page-contact .pc-channel:hover .pc-channel__kicker {
  color: var(--carbon);
}

.page-contact .pc-channel__value {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  line-height: 1.5;
  overflow-wrap: break-word;
  word-break: break-word;
}

.page-contact .pc-channel__value a {
  color: inherit;
  text-decoration: none;
  border-bottom: 2px solid var(--lime);
  padding-bottom: 2px;
  transition: border-color 0.2s var(--ease);
}

.page-contact .pc-channel:hover .pc-channel__value a {
  border-bottom-color: var(--carbon);
}

.page-contact .pc-channel__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--mist);
  transition: color 0.2s var(--ease);
}

.page-contact .pc-channel:hover .pc-channel__desc {
  color: var(--stone);
}

.page-contact .pc-channel__foot {
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--pc-line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .pc-channel:hover .pc-channel__foot {
  color: var(--moss);
  border-top-color: rgba(11, 15, 13, 0.22);
}

/* ---------- 写信前 ---------- */
.page-contact .pc-brief {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

.page-contact .pc-brief .bb-h2 {
  margin: 0 0 16px;
}

.page-contact .pc-tips {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  border-top: 1px solid var(--pc-line);
}

.page-contact .pc-tips__item {
  position: relative;
  display: grid;
  gap: 6px;
  padding: 16px 0 16px 22px;
  border-bottom: 1px solid var(--pc-line);
}

.page-contact .pc-tips__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 23px;
  width: 8px;
  height: 8px;
  background: var(--lime);
}

.page-contact .pc-tips__item strong {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-contact .pc-tips__item span {
  font-size: 15px;
  line-height: 1.65;
  color: var(--mist);
}

.page-contact .pc-shot {
  margin: 0;
  background: var(--ink);
  border: 2px solid var(--pc-line-strong);
  box-shadow: var(--pc-shadow);
}

.page-contact .pc-shot img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-contact .pc-shot figcaption {
  padding: 12px 14px;
  border-top: 1px solid var(--pc-line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 邮件模板 ---------- */
.page-contact .pc-tpl {
  margin-top: 40px;
  background: var(--ink);
  border: 2px solid var(--pc-line-strong);
  box-shadow: var(--pc-shadow-deep);
}

.page-contact .pc-tpl__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 20px;
  justify-content: space-between;
  align-items: baseline;
  padding: 12px 18px;
  border-bottom: 1px solid var(--pc-line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--chalk);
}

.page-contact .pc-tpl__hint {
  color: var(--mist);
  letter-spacing: 0.1em;
  text-transform: none;
}

.page-contact .pc-tpl__body {
  padding: 8px 18px 20px;
}

.page-contact .pc-tpl__row {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 11px 0;
  border-bottom: 1px dashed rgba(241, 238, 227, 0.12);
}

.page-contact .pc-tpl__row:last-child {
  border-bottom: 0;
}

.page-contact .pc-tpl__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-contact .pc-tpl__v {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--chalk);
  overflow-wrap: break-word;
  word-break: break-word;
}

/* ---------- 合作与供稿 ---------- */
.page-contact .pc-collab {
  display: grid;
  border-top: 1px solid var(--pc-line);
}

.page-contact .pc-collab__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  padding-block: 26px;
  border-bottom: 1px solid var(--pc-line);
}

.page-contact .pc-collab__no {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--clay);
}

.page-contact .pc-collab__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.4vw, 1.6rem);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-contact .pc-collab__desc {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .pc-collab__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-contact .pc-collab__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--mist);
}

.page-contact .pc-collab__list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--moss);
}

.page-contact .pc-collab__ch {
  display: grid;
  gap: 4px;
  align-content: start;
  padding: 14px 16px;
  background: var(--ink);
  border-left: 2px solid var(--lime);
}

.page-contact .pc-collab__chk {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--moss);
}

.page-contact .pc-collab__mail {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.5;
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 241, 78, 0.4);
  overflow-wrap: break-word;
  word-break: break-word;
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .pc-collab__mail:hover {
  background: var(--lime-ghost);
  border-bottom-color: var(--lime);
}

.page-contact .pc-collab__chv {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--chalk);
  margin-bottom: 6px;
}

/* ---------- 回复时间与备案 ---------- */
.page-contact .pc-meta {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
  background: var(--pc-line);
  border: 2px solid var(--pc-line-strong);
}

.page-contact .pc-meta__cell {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 24px 20px;
  background: var(--ink);
}

.page-contact .pc-meta__num {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--amber);
}

.page-contact .pc-meta__num--sm {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--mist);
  overflow-wrap: break-word;
  word-break: break-all;
}

.page-contact .pc-meta__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--lime);
}

.page-contact .pc-meta__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 底部信息条 ---------- */
.page-contact .pc-filing {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-block: 24px 32px;
  border-top: 1px solid var(--pc-line);
}

.page-contact .pc-filing__note {
  margin: 0;
  max-width: 46em;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .pc-filing__note a {
  color: var(--chalk);
  text-decoration: none;
  border-bottom: 1px solid var(--pc-line-strong);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .pc-filing__note a:hover {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.page-contact .pc-filing__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
}

.page-contact .pc-filing__links a {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 241, 78, 0.35);
  padding-bottom: 2px;
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-contact .pc-filing__links a:hover {
  background: var(--lime-ghost);
  border-bottom-color: var(--lime);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-contact .pc-tpl__row {
    grid-template-columns: 132px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }

  .page-contact .pc-portrait__img {
    height: 300px;
  }
}

@media (min-width: 760px) {
  .page-contact .pc-sec__head {
    flex-direction: row;
    align-items: baseline;
    justify-content: space-between;
    gap: 32px;
  }

  .page-contact .pc-sec__note {
    text-align: right;
    max-width: 26em;
  }

  .page-contact .pc-channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

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

@media (min-width: 900px) {
  .page-contact .pc-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 56px;
    align-items: end;
    padding-block: 32px 72px;
  }

  .page-contact .pc-portrait__img {
    height: 400px;
  }

  .page-contact .pc-sec {
    padding-block: 88px;
  }

  .page-contact .pc-brief {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: start;
  }

  .page-contact .pc-collab__item {
    grid-template-columns: 190px minmax(0, 1fr) 250px;
    gap: 40px;
    align-items: start;
    padding-block: 34px;
  }

  .page-contact .pc-tpl {
    margin-top: 56px;
  }
}

@media (min-width: 1120px) {
  .page-contact .pc-hero__title {
    font-size: clamp(3rem, 5.2vw, 4.8rem);
  }

  .page-contact .pc-filing {
    flex-direction: row;
    align-items: baseline;
    justify-content: space-between;
    gap: 40px;
  }
}
</final_solution>