.page-contact {
  --pc-gap: clamp(16px, 2.4vw, 28px);
  --pc-shadow: 0 22px 54px rgba(5, 10, 19, .55);
  --pc-card: linear-gradient(180deg, var(--ink) 0%, rgba(11, 18, 32, .94) 100%);
}

/* 面包屑 */
.page-contact .breadcrumbs {
  padding: 20px 0 6px;
}

.page-contact .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mist);
}

.page-contact .breadcrumbs__item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.page-contact .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  color: var(--metal);
}

.page-contact .breadcrumbs__link {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--ease), border-color var(--ease);
}

.page-contact .breadcrumbs__link:hover,
.page-contact .breadcrumbs__link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-contact .breadcrumbs__current {
  color: var(--bright);
}

/* 首屏 */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  margin-top: 14px;
  border-top: var(--line);
  border-bottom: var(--line);
  background: var(--midnight);
}

.page-contact .contact-hero__media {
  position: absolute;
  inset: 0;
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .3;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(70% 90% at 88% 8%, rgba(55, 225, 232, .17) 0%, transparent 62%),
    radial-gradient(58% 78% at 2% 102%, rgba(200, 16, 46, .18) 0%, transparent 60%),
    linear-gradient(115deg, rgba(5, 10, 19, .95) 0%, rgba(11, 18, 32, .74) 48%, rgba(5, 10, 19, .94) 100%);
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 18px;
  align-content: start;
  padding-top: clamp(52px, 9vw, 106px);
  padding-bottom: clamp(48px, 8vw, 94px);
}

.page-contact .contact-hero__title {
  margin: 0;
  max-width: 16ch;
}

.page-contact .contact-hero__lede {
  margin: 0;
  max-width: 60ch;
  color: var(--mist);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 6px;
}

/* 三条渠道 */
.page-contact .contact-channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
  margin-top: clamp(24px, 3.5vw, 44px);
}

.page-contact .contact-channel {
  position: relative;
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 26px 22px 24px;
  background: var(--pc-card);
  border: 1px solid var(--metal);
  border-radius: 4px;
  transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
}

.page-contact .contact-channel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  bottom: 20px;
  width: 2px;
  background: var(--cyan);
  opacity: .3;
  transition: opacity var(--ease);
}

.page-contact .contact-channel:hover,
.page-contact .contact-channel:focus-within {
  transform: translateY(-2px);
  border-color: var(--cyan-deep);
  box-shadow: var(--pc-shadow);
}

.page-contact .contact-channel:hover::before,
.page-contact .contact-channel:focus-within::before {
  opacity: 1;
}

.page-contact .contact-channel__icon {
  width: 30px;
  height: 30px;
  color: var(--cyan);
}

.page-contact .contact-channel__name {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .05em;
  color: var(--bright);
}

.page-contact .contact-channel__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.7vw, 17px);
  line-height: 1.55;
  color: var(--orange);
  overflow-wrap: anywhere;
}

.page-contact .contact-channel__value--plain {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 500;
  color: var(--bright);
}

.page-contact .contact-channel__use {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed var(--metal);
  color: var(--mist);
  font-size: 14.5px;
  line-height: 1.8;
}

.page-contact .contact-channel__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .07em;
  color: var(--cyan-deep);
}

/* 反馈准备 */
.page-contact .contact-prep {
  align-items: start;
  gap: clamp(26px, 3.4vw, 48px);
}

.page-contact .contact-prep__text {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-contact .contact-prep__lead,
.page-contact .contact-prep__note {
  margin: 0;
  color: var(--mist);
  line-height: 1.85;
}

.page-contact .contact-prep__note {
  padding-top: 14px;
  border-top: 1px dashed var(--metal);
  font-size: 14.5px;
}

.page-contact .contact-prep__media {
  margin: 0;
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-contact .contact-checklist {
  display: grid;
  gap: 10px;
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-checklist__item {
  position: relative;
  padding-left: 30px;
  color: var(--mist);
  font-size: 14.5px;
  line-height: 1.8;
}

.page-contact .contact-checklist__item::before {
  content: "";
  position: absolute;
  left: 2px;
  top: .58em;
  width: 12px;
  height: 6px;
  border-left: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(-45deg);
}

/* 受理范围 */
.page-contact .contact-table-scroll {
  margin-top: clamp(22px, 3vw, 36px);
  overflow-x: auto;
  border: var(--line);
  border-radius: 4px;
  background: rgba(22, 32, 58, .42);
}

.page-contact .contact-table {
  width: 100%;
  min-width: 760px;
}

.page-contact .contact-table th,
.page-contact .contact-table td {
  padding: 14px 16px;
  text-align: left;
  vertical-align: top;
  line-height: 1.75;
}

.page-contact .contact-table tbody th {
  color: var(--bright);
  font-weight: 600;
}

.page-contact .contact-scope__note {
  max-width: 78ch;
  margin: 18px 0 0;
  color: var(--mist);
  font-size: 14.5px;
  line-height: 1.85;
}

.page-contact .contact-link {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--ease);
}

.page-contact .contact-link:hover,
.page-contact .contact-link:focus-visible {
  color: var(--orange);
}

/* 合作与供稿 */
.page-contact .contact-partner {
  display: grid;
  gap: clamp(22px, 3vw, 34px);
  padding: clamp(26px, 4vw, 52px);
  border-radius: 4px;
  box-shadow: var(--pc-shadow);
}

.page-contact .contact-partner__head {
  display: grid;
  gap: 14px;
  max-width: 74ch;
}

.page-contact .contact-partner .label {
  color: var(--sichuan);
}

.page-contact .contact-partner h2 {
  margin: 0;
  color: var(--brown);
}

.page-contact .contact-partner__lead {
  margin: 0;
  color: rgba(36, 28, 22, .82);
  line-height: 1.85;
}

.page-contact .contact-partner__stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  padding-top: 24px;
  border-top: 1px solid rgba(36, 28, 22, .22);
}

.page-contact .contact-partner__stat {
  display: grid;
  gap: 6px;
  align-content: start;
}

.page-contact .contact-partner__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1;
  color: var(--sichuan);
}

.page-contact .contact-partner__label {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(36, 28, 22, .78);
}

.page-contact .contact-partner__paths {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-contact .contact-partner__path {
  margin: 0;
  padding-left: 14px;
  border-left: 2px solid rgba(200, 16, 46, .45);
  color: rgba(36, 28, 22, .86);
  font-size: 14.5px;
  line-height: 1.8;
}

.page-contact .contact-partner__path strong {
  display: block;
  margin-bottom: 4px;
  font-size: 15px;
  color: var(--brown);
}

/* 到访与寄送 */
.page-contact .contact-visit {
  align-items: start;
  gap: clamp(26px, 3.4vw, 44px);
}

.page-contact .contact-visit__text {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-contact .contact-visit__text p {
  margin: 0;
  color: var(--mist);
  line-height: 1.85;
}

.page-contact .contact-visit__card {
  display: grid;
  gap: 14px;
  align-content: start;
  padding: 26px 22px;
  border-radius: 4px;
}

.page-contact .contact-visit__addr {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.75;
  color: var(--bright);
  overflow-wrap: anywhere;
}

.page-contact .contact-visit__meta {
  display: grid;
  gap: 12px;
  margin: 0;
  padding-top: 14px;
  border-top: 1px dashed var(--metal);
}

.page-contact .contact-visit__meta > div {
  display: grid;
  gap: 4px;
}

.page-contact .contact-visit__meta dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--mist);
}

.page-contact .contact-visit__meta dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

/* 底部行动条 */
.page-contact .contact-cta {
  display: grid;
  gap: 18px;
  padding: clamp(24px, 3.5vw, 40px);
  border: 1px solid var(--metal);
  border-radius: 4px;
  background:
    linear-gradient(120deg, rgba(55, 225, 232, .12) 0%, rgba(255, 138, 61, .12) 100%),
    var(--ink);
}

.page-contact .contact-cta__text h2 {
  margin: 0 0 8px;
}

.page-contact .contact-cta__text p {
  margin: 0;
  max-width: 60ch;
  color: var(--mist);
  line-height: 1.8;
}

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

/* 窄屏防溢出 */
@media (max-width: 419px) {
  .page-contact .contact-channel__value {
    font-size: 13.5px;
  }

  .page-contact .contact-hero__actions .btn,
  .page-contact .contact-cta__actions .btn {
    width: 100%;
    justify-content: center;
  }
}

/* 桌面错落与分栏 */
@media (min-width: 700px) {
  .page-contact .contact-partner__stats,
  .page-contact .contact-partner__paths {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-contact .contact-channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-contact .contact-channel:nth-child(1) {
    margin-top: 34px;
  }

  .page-contact .contact-channel:nth-child(2) {
    margin-top: 0;
  }

  .page-contact .contact-channel:nth-child(3) {
    margin-top: 56px;
  }

  .page-contact .contact-cta {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-channel,
  .page-contact .contact-channel::before,
  .page-contact .breadcrumbs__link,
  .page-contact .contact-link {
    transition: none;
  }

  .page-contact .contact-channel:hover,
  .page-contact .contact-channel:focus-within {
    transform: none;
  }
}
```