.page-contact {
  --contact-gap: 24px;
  position: relative;
  display: block;
  overflow-x: clip;
  padding-bottom: 80px;
  color: var(--oy-ink);
  background:
    radial-gradient(circle at 90% 2%, rgba(23, 224, 176, 0.15), transparent 40%),
    radial-gradient(circle at 2% 58%, rgba(242, 180, 87, 0.1), transparent 46%),
    var(--oy-deep);
}

.page-contact .oy-crumbs {
  padding-top: 22px;
}

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

.page-contact .contact-hero {
  position: relative;
  z-index: 1;
  padding: 34px 0 30px;
}

.page-contact .contact-hero__label {
  display: inline-block;
  margin-bottom: 20px;
  color: var(--oy-neon);
}

.page-contact .contact-hero__title {
  margin: 0 0 20px;
  max-width: 14em;
  font-family: var(--oy-sans);
  font-weight: 900;
  font-size: clamp(2rem, 7.4vw, 3.5rem);
  line-height: 1.06;
  letter-spacing: -0.025em;
}

.page-contact .contact-hero__title em {
  font-style: normal;
  color: var(--oy-gold);
  position: relative;
  display: inline-block;
}

.page-contact .contact-hero__title em::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.06em;
  height: 3px;
  background: linear-gradient(90deg, var(--oy-neon), rgba(23, 224, 176, 0));
}

.page-contact .contact-hero__lead {
  margin: 0;
  max-width: 60ch;
  font-size: 1.0625rem;
  line-height: 1.78;
  color: var(--oy-ink);
  opacity: 0.92;
}

.page-contact .contact-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid var(--oy-line-soft);
}

.page-contact .contact-jump__link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 15px;
  border: 1px solid var(--oy-line);
  background: rgba(11, 35, 52, 0.62);
  color: var(--oy-ink);
  text-decoration: none;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  transition: border-color 0.22s ease, color 0.22s ease, background 0.22s ease;
}

.page-contact .contact-jump__link .oy-mono {
  color: var(--oy-gold);
  font-size: 0.75rem;
}

.page-contact .contact-jump__link:hover,
.page-contact .contact-jump__link:focus-visible {
  border-color: var(--oy-neon);
  color: var(--oy-neon);
  background: rgba(23, 224, 176, 0.09);
}

.page-contact .contact-jump__link:hover .oy-mono,
.page-contact .contact-jump__link:focus-visible .oy-mono {
  color: var(--oy-neon);
}

/* ---------- Banner ---------- */

.page-contact .contact-banner {
  position: relative;
  z-index: 1;
  margin: 6px 0 0;
  border: 1px solid var(--oy-line-soft);
  background: var(--oy-layer);
  overflow: hidden;
}

.page-contact .contact-banner img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 通用区块抬头 ---------- */

.page-contact .contact-block__head {
  margin-bottom: 26px;
}

.page-contact .contact-block__index {
  display: block;
  margin-bottom: 12px;
  color: var(--oy-gold);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
}

.page-contact .contact-block__title {
  margin: 0 0 12px;
  font-family: var(--oy-sans);
  font-weight: 900;
  font-size: clamp(1.4rem, 4.6vw, 1.9rem);
  line-height: 1.22;
  letter-spacing: -0.015em;
}

.page-contact .contact-block__lead {
  margin: 0;
  max-width: 54ch;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--oy-muted);
}

/* ---------- 分栏：渠道 + 准备清单 ---------- */

.page-contact .contact-split {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  padding: 54px 0 18px;
}

.page-contact .contact-channels {
  border-top: 1px solid var(--oy-line);
}

.page-contact .contact-channel {
  position: relative;
  padding: 28px 0 28px 20px;
  border-bottom: 1px solid var(--oy-line);
  transition: background 0.28s ease;
}

.page-contact .contact-channel::after {
  content: "";
  position: absolute;
  left: 0;
  top: 26px;
  bottom: 26px;
  width: 2px;
  background: var(--oy-neon);
  opacity: 0.26;
  transition: opacity 0.28s ease, width 0.28s ease;
}

.page-contact .contact-channel:hover::after,
.page-contact .contact-channel:focus-within::after {
  opacity: 1;
  width: 3px;
}

.page-contact .contact-channel__num {
  display: block;
  margin-bottom: 9px;
  font-family: var(--oy-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--oy-gold);
}

.page-contact .contact-channel__name {
  margin: 0 0 12px;
  font-size: 1.0625rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  color: var(--oy-ink);
}

.page-contact .contact-channel__value {
  margin: 0 0 14px;
  font-family: var(--oy-mono);
  font-weight: 600;
  font-size: clamp(1.0625rem, 4.4vw, 1.3rem);
  line-height: 1.4;
  letter-spacing: 0.05em;
  color: var(--oy-neon);
  overflow-wrap: anywhere;
}

.page-contact .contact-channel__value--text {
  font-family: var(--oy-sans);
  font-weight: 800;
  font-size: 1.0625rem;
  line-height: 1.55;
  letter-spacing: 0.01em;
  color: var(--oy-ink);
}

.page-contact .contact-channel__desc {
  margin: 0 0 14px;
  max-width: 44ch;
  font-size: 0.9375rem;
  line-height: 1.72;
  color: var(--oy-muted);
}

.page-contact .contact-channel__note {
  display: inline-block;
  padding: 4px 10px;
  border: 1px solid rgba(242, 180, 87, 0.36);
  background: rgba(242, 180, 87, 0.07);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--oy-gold);
}

/* 准备清单 */

.page-contact .contact-checklist {
  position: relative;
  padding: 26px 20px 28px;
  border: 1px solid var(--oy-line);
  border-top: 2px solid var(--oy-neon);
  background: linear-gradient(180deg, rgba(15, 50, 71, 0.72), rgba(11, 35, 52, 0.66));
}

.page-contact .contact-checklist__title {
  margin: 0 0 12px;
  font-size: 1.1875rem;
  font-weight: 900;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.page-contact .contact-checklist__lead {
  margin: 0 0 24px;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--oy-muted);
}

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

.page-contact .contact-checklist__item {
  position: relative;
}

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

.page-contact .contact-checklist__label {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 13px;
  align-items: start;
  cursor: pointer;
}

.page-contact .contact-checklist__box {
  position: relative;
  display: block;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  border: 1px solid var(--oy-neon);
  background: rgba(23, 224, 176, 0.05);
  transition: background 0.2s ease, border-color 0.2s ease;
}

.page-contact .contact-checklist__box::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--oy-deep);
  border-bottom: 2px solid var(--oy-deep);
  transform: rotate(42deg) scale(0);
  transform-origin: center;
  transition: transform 0.22s ease;
}

.page-contact .contact-checklist__text {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--oy-ink);
  transition: color 0.24s ease, opacity 0.24s ease;
}

.page-contact .contact-checklist__text strong {
  font-weight: 800;
  color: var(--oy-neon-soft);
}

.page-contact .contact-checklist__check:checked + .contact-checklist__label .contact-checklist__box {
  background: var(--oy-neon);
}

.page-contact .contact-checklist__check:checked + .contact-checklist__label .contact-checklist__box::after {
  transform: rotate(42deg) scale(1);
}

.page-contact .contact-checklist__check:checked + .contact-checklist__label .contact-checklist__text {
  color: var(--oy-muted);
  opacity: 0.6;
}

.page-contact .contact-checklist__check:checked + .contact-checklist__label .contact-checklist__text strong {
  color: var(--oy-muted);
}

.page-contact .contact-checklist__check:focus-visible + .contact-checklist__label .contact-checklist__box {
  outline: 2px solid var(--oy-gold);
  outline-offset: 2px;
}

.page-contact .contact-checklist__foot {
  margin: 24px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--oy-line-soft);
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--oy-muted);
}

/* ---------- 栏目合作 ---------- */

.page-contact .contact-coop {
  position: relative;
  z-index: 1;
  padding: 54px 0 18px;
}

.page-contact .contact-coop__tabs {
  margin-top: 4px;
}

.page-contact .contact-coop__tabs .oy-tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border-bottom: 1px solid var(--oy-line);
}

.page-contact .contact-coop__tabs .oy-tabs__tab {
  appearance: none;
  position: relative;
  top: 1px;
  padding: 12px 18px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--oy-muted);
  font-family: var(--oy-sans);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: color 0.22s ease, background 0.22s ease, border-color 0.22s ease;
}

.page-contact .contact-coop__tabs .oy-tabs__tab:hover {
  color: var(--oy-ink);
}

.page-contact .contact-coop__tabs .oy-tabs__tab[aria-selected="true"] {
  border-color: var(--oy-line);
  background: rgba(23, 224, 176, 0.09);
  color: var(--oy-neon);
}

.page-contact .contact-coop__tabs .oy-tabs__tab:focus-visible {
  outline: 2px solid var(--oy-gold);
  outline-offset: -2px;
}

.page-contact .contact-coop__panel {
  padding: 26px 0 0;
}

.page-contact .contact-coop__panel[hidden] {
  display: none;
}

.page-contact .contact-coop__text {
  margin: 0 0 16px;
  max-width: 66ch;
  font-size: 1rem;
  line-height: 1.78;
  color: var(--oy-ink);
  opacity: 0.92;
}

.page-contact .contact-coop__more {
  margin: 0;
}

.page-contact .contact-coop__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--oy-gold);
  font-size: 0.875rem;
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 180, 87, 0.4);
  padding-bottom: 2px;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-contact .contact-coop__link::after {
  content: "→";
  font-family: var(--oy-mono);
}

.page-contact .contact-coop__link:hover,
.page-contact .contact-coop__link:focus-visible {
  color: var(--oy-neon);
  border-color: var(--oy-neon);
}

/* ---------- 回复节奏 ---------- */

.page-contact .contact-reply {
  position: relative;
  z-index: 1;
  padding: 54px 0 18px;
}

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

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

.page-contact .contact-reply__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--oy-line-soft);
}

.page-contact .contact-reply__key {
  padding-top: 3px;
  font-family: var(--oy-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--oy-gold);
  white-space: nowrap;
}

.page-contact .contact-reply__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.76;
  color: var(--oy-ink);
  opacity: 0.9;
}

.page-contact .contact-reply__media {
  margin: 0;
  border: 1px solid var(--oy-line-soft);
  background: var(--oy-layer);
  overflow: hidden;
}

.page-contact .contact-reply__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 容易漏的三件事 ---------- */

.page-contact .contact-slip {
  position: relative;
  z-index: 1;
  padding: 54px 0 0;
}

.page-contact .contact-slip__list {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-contact .contact-slip__item {
  position: relative;
  padding: 24px 20px 26px;
  border: 1px solid var(--oy-line-soft);
  border-left: 2px solid var(--oy-neon);
  background: rgba(11, 35, 52, 0.68);
}

.page-contact .contact-slip__num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--oy-mono);
  font-size: 1.375rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--oy-gold);
}

.page-contact .contact-slip__title {
  margin: 0 0 10px;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--oy-ink);
}

.page-contact .contact-slip__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.74;
  color: var(--oy-muted);
}

.page-contact .contact-tail {
  display: grid;
  gap: 16px;
  margin-top: 34px;
  padding: 24px 20px;
  border: 1px solid var(--oy-line);
  background: linear-gradient(120deg, rgba(15, 50, 71, 0.78), rgba(6, 22, 35, 0.6));
}

.page-contact .contact-tail__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.72;
  color: var(--oy-ink);
  opacity: 0.9;
}

.page-contact .contact-tail .oy-btn {
  justify-self: start;
  text-decoration: none;
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-contact .contact-slip__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-contact .contact-tail {
    grid-template-columns: 1fr auto;
    align-items: center;
    padding: 26px 28px;
    gap: 26px;
  }

  .page-contact .contact-tail .oy-btn {
    justify-self: end;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    padding: 48px 0 34px;
  }

  .page-contact .contact-split {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
    padding: 64px 0 24px;
  }

  .page-contact .contact-split__col--prep {
    position: sticky;
    top: 96px;
  }

  .page-contact .contact-coop,
  .page-contact .contact-reply,
  .page-contact .contact-slip {
    padding-top: 72px;
  }

  .page-contact .contact-reply__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 44px;
    align-items: center;
  }

  .page-contact .contact-channel {
    padding: 32px 0 32px 24px;
  }
}

@media (min-width: 1180px) {
  .page-contact .contact-hero__lead {
    font-size: 1.125rem;
  }

  .page-contact .contact-channel__name {
    font-size: 1.125rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}
<<<END>>>