.page-contact {
  --pc-block-gap: 52px;
  --pc-card-pad: 22px 20px;
  padding-bottom: 88px;
}

.page-contact .pc-sec {
  padding-top: var(--pc-block-gap);
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero__media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-bottom: var(--edge);
}

.page-contact .pc-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  object-position: center 60%;
}

.page-contact .pc-hero__body {
  padding: 28px 0 4px;
}

.page-contact .pc-hero__kicker {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ref-yellow);
}

.page-contact h1 {
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 7.4vw, 56px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--chalk);
}

.page-contact .pc-hero__lead {
  margin: 0 0 22px;
  max-width: 62ch;
  font-size: 17px;
  line-height: 1.72;
  color: var(--chalk);
}

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

/* ---------- 通用区块头 ---------- */
.page-contact .pc-sec-head {
  display: grid;
  gap: 10px;
  padding-bottom: 26px;
}

.page-contact .pc-sec-head__idx {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--ref-yellow);
}

.page-contact h2 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(23px, 4.6vw, 36px);
  line-height: 1.16;
  letter-spacing: -0.015em;
  color: var(--chalk);
}

.page-contact .pc-sec-head__note {
  margin: 0;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.72;
  color: var(--mist);
}

/* ---------- 三条渠道 ---------- */
.page-contact .pc-channels__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-contact .pc-chan {
  display: grid;
  align-content: start;
  gap: 8px;
  padding: var(--pc-card-pad);
  background: var(--turf-800);
  border: var(--edge);
  box-shadow: var(--shadow);
}

.page-contact .pc-chan--mail {
  background: var(--turf-700);
  border-color: var(--pen-red);
  box-shadow: 6px 6px 0 var(--pen-red);
}

.page-contact .pc-chan__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ref-yellow);
}

.page-contact .pc-chan__title {
  margin: 0;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-contact .pc-chan__value {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(17px, 4.4vw, 21px);
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.35;
  color: var(--chalk);
  overflow-wrap: anywhere;
}

.page-contact .pc-chan__value--addr {
  font-size: clamp(16px, 4vw, 19px);
}

.page-contact .pc-chan__use {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--chalk);
}

.page-contact .pc-chan__meta {
  margin: 10px 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--turf-700);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--mist);
}

/* ---------- 邮件写法 ---------- */
.page-contact .pc-mail__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-contact .pc-mail__copy h2 {
  margin: 0 0 14px;
}

.page-contact .pc-mail__copy > p {
  margin: 0 0 18px;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--chalk);
}

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

.page-contact .pc-mail__list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .pc-mail__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  background: var(--ref-yellow);
}

.page-contact .pc-mail__box {
  padding: 20px 18px;
  background: var(--turf-900);
  border: var(--edge-thin);
  box-shadow: var(--shadow-lift);
}

.page-contact .pc-mail__box-label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ref-yellow);
}

.page-contact .pc-mail__sample {
  margin: 0 0 10px;
  padding: 10px 12px;
  background: var(--turf-800);
  border-left: 4px solid var(--whistle);
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.01em;
  line-height: 1.5;
  color: var(--chalk);
  overflow-wrap: anywhere;
}

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

/* ---------- 四类合作 ---------- */
.page-contact .pc-coop__grid {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-contact .pc-coop__item {
  display: grid;
  align-content: start;
  gap: 10px;
  padding: var(--pc-card-pad);
  background: var(--turf-800);
  border: var(--edge-thin);
  box-shadow: 4px 4px 0 var(--ink);
}

.page-contact .pc-coop__mark {
  display: inline-block;
  width: 44px;
  padding: 3px 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--ink);
  background: var(--ref-yellow);
  border: var(--edge-thin);
}

.page-contact .pc-coop__title {
  margin: 0;
  font-size: 19px;
  font-weight: 900;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--chalk);
}

.page-contact .pc-coop__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--chalk);
}

.page-contact .pc-coop__cycle {
  padding-top: 10px;
  border-top: 1px dashed var(--turf-700);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--whistle);
}

/* ---------- 纠错反馈 ---------- */
.page-contact .pc-fix__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-contact .pc-fix__copy h2 {
  margin: 0 0 14px;
}

.page-contact .pc-fix__copy > p {
  margin: 0 0 18px;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--chalk);
}

.page-contact .pc-fix__steps {
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-contact .pc-fix__steps li {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
  align-items: start;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--turf-700);
  font-size: 15px;
  line-height: 1.7;
  color: var(--chalk);
}

.page-contact .pc-fix__steps .mono {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--ref-yellow);
}

.page-contact .pc-fix__note {
  margin: 0 0 16px;
  max-width: 60ch;
  padding-left: 14px;
  border-left: 4px solid var(--pen-red);
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .pc-fix__figure {
  margin: 0;
}

.page-contact .pc-fix__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: var(--edge);
  box-shadow: var(--shadow);
}

/* ---------- 回复节奏 ---------- */
.page-contact .pc-clock__track {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-contact .pc-clock__item {
  position: relative;
  padding: 26px 18px 20px;
  background: var(--turf-800);
  border: var(--edge-thin);
}

.page-contact .pc-clock__item::before {
  content: "";
  position: absolute;
  top: -6px;
  left: -2px;
  right: -2px;
  height: 6px;
  background: var(--ref-yellow);
}

.page-contact .pc-clock__tag {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--ref-yellow);
}

.page-contact .pc-clock__item h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 900;
  line-height: 1.35;
  color: var(--chalk);
}

.page-contact .pc-clock__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--mist);
}

/* ---------- 收尾 ---------- */
.page-contact .pc-more__panel {
  display: grid;
  gap: 22px;
  padding: 28px 22px;
  background: linear-gradient(120deg, var(--violet-a), var(--violet-b));
  border: var(--edge);
  box-shadow: var(--shadow);
}

.page-contact .pc-more__head h2 {
  margin: 0 0 12px;
  color: var(--chalk);
}

.page-contact .pc-more__head p {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--chalk);
}

.page-contact .pc-more__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .pc-more__btn {
  background: var(--chalk);
  color: var(--ink);
  border-color: var(--ink);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  font-weight: 700;
  text-decoration: none;
}

.page-contact .pc-more__btn:hover {
  background: var(--ref-yellow);
}

.page-contact .pc-more__meta {
  margin: 20px 0 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 文本链接与焦点 ---------- */
.page-contact .pc-textlink {
  color: var(--ref-yellow);
  text-decoration: underline;
  text-decoration-color: var(--whistle);
  text-underline-offset: 3px;
}

.page-contact .pc-textlink:hover {
  color: var(--whistle);
}

.page-contact a:focus-visible,
.page-contact button:focus-visible {
  outline: var(--focus);
  outline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact {
    --pc-block-gap: 64px;
    --pc-card-pad: 26px 24px;
  }

  .page-contact .pc-hero__media {
    aspect-ratio: 21 / 8;
  }

  .page-contact .pc-hero__body {
    padding: 36px 0 8px;
  }

  .page-contact .pc-channels__grid {
    grid-template-columns: 1.25fr 1fr 0.95fr;
    align-items: start;
  }

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

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

  .page-contact .pc-more__panel {
    grid-template-columns: 1fr auto;
    align-items: center;
    padding: 32px 28px;
  }
}

@media (min-width: 1000px) {
  .page-contact {
    --pc-block-gap: 76px;
  }

  .page-contact .pc-mail__grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
    gap: 34px;
  }

  .page-contact .pc-coop__grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-contact .pc-fix__grid {
    grid-template-columns: 1.08fr 0.92fr;
    align-items: start;
    gap: 34px;
  }

  .page-contact .pc-clock__track {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .card--lift,
  .page-contact .pc-more__btn {
    transition: none;
  }
}