.page-contact {
  --contact-hair: 1px solid var(--line-600);
  background: var(--space-950);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

.page-contact a {
  color: inherit;
  text-decoration: none;
}

.page-contact .section {
  padding-block: clamp(48px, 7vw, 92px);
}

.page-contact .eyebrow {
  font-family: var(--font-num);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--teal-400);
  margin: 0;
}

.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0 0 clamp(16px, 3vw, 26px);
  padding: 0;
  font-family: var(--font-num);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.page-contact .breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-contact .breadcrumb li + li::before {
  content: "/";
  color: var(--line-600);
}

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--teal-300);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-top: clamp(26px, 5vw, 52px);
  border-bottom: var(--contact-hair);
}

.page-contact .contact-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.32;
}

.page-contact .contact-hero__scrim {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(120% 95% at 10% 0%, rgba(5, 10, 20, 0.4) 0%, rgba(5, 10, 20, 0.95) 70%),
    linear-gradient(180deg, rgba(3, 6, 13, 0.7) 0%, rgba(5, 10, 20, 0.99) 92%);
}

.page-contact .contact-hero__inner {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  padding-bottom: clamp(32px, 5vw, 56px);
}

.page-contact .contact-hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.35rem, 7vw, 4.5rem);
  line-height: 1.02;
  letter-spacing: 0.01em;
  margin: 12px 0 clamp(14px, 2vw, 20px);
  text-wrap: balance;
}

.page-contact .contact-hero__lede {
  max-width: 48ch;
  margin: 0;
  font-size: clamp(1rem, 1.6vw, 1.1rem);
  color: var(--text-secondary);
}

.page-contact .contact-hero__board {
  align-self: end;
  padding: clamp(20px, 3vw, 30px);
  background: linear-gradient(155deg, rgba(14, 32, 56, 0.94), rgba(8, 20, 38, 0.88));
  border: var(--contact-hair);
  border-left: 2px solid var(--teal-400);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.page-contact .contact-hero__board-label {
  margin: 0 0 14px;
  font-family: var(--font-num);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--teal-400);
}

.page-contact .contact-hero__board-row {
  padding: 14px 0;
  border-top: 1px solid rgba(42, 59, 82, 0.75);
}

.page-contact .contact-hero__board-key {
  display: block;
  font-family: var(--font-num);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.page-contact .contact-hero__board-value {
  display: block;
  margin-top: 6px;
  font-family: var(--font-num);
  font-size: clamp(1.02rem, 2.4vw, 1.42rem);
  line-height: 1.35;
  color: var(--text-primary);
  overflow-wrap: anywhere;
}

.page-contact .contact-hero__board-note {
  margin: 14px 0 0;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.page-contact .contact-routes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line-600);
  border-top: var(--contact-hair);
}

.page-contact .contact-route {
  background: var(--space-900);
}

.page-contact .contact-route__link {
  display: block;
  height: 100%;
  padding: 20px clamp(20px, 4vw, 40px) 24px;
  border-top: 2px solid transparent;
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-contact .contact-route__link:hover,
.page-contact .contact-route__link:focus-visible {
  background: var(--panel-800);
  border-top-color: var(--teal-400);
}

.page-contact .contact-route__index {
  display: block;
  font-family: var(--font-num);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--teal-400);
}

.page-contact .contact-route__label {
  display: block;
  margin: 6px 0 4px;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.page-contact .contact-route__desc {
  display: block;
  font-size: 0.86rem;
  color: var(--text-secondary);
}

/* ---------- 区块标题 ---------- */
.page-contact .contact-sec-head {
  max-width: 62ch;
  margin-bottom: clamp(26px, 4vw, 44px);
}

.page-contact .contact-sec-head h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.75rem, 4vw, 2.85rem);
  line-height: 1.1;
  margin: 10px 0 14px;
  text-wrap: balance;
}

.page-contact .contact-sec-head__text {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.98rem;
}

/* ---------- 合作类型 ---------- */
.page-contact .contact-partners {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--space-900);
  border-bottom: var(--contact-hair);
}

.page-contact .contact-partners__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.15;
}

.page-contact .contact-partners::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(42, 59, 82, 0.4) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42, 59, 82, 0.4) 1px, transparent 1px);
  background-size: 58px 58px;
  -webkit-mask-image: radial-gradient(78% 70% at 74% 16%, #000 0%, transparent 80%);
  mask-image: radial-gradient(78% 70% at 74% 16%, #000 0%, transparent 80%);
  opacity: 0.55;
}

.page-contact .contact-partners__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-contact .co-card {
  display: flex;
  flex-direction: column;
  padding: clamp(20px, 3vw, 28px);
  background: rgba(8, 20, 38, 0.86);
  border: var(--contact-hair);
  border-top: 2px solid var(--teal-400);
  border-radius: var(--radius);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.page-contact .co-card--orange {
  border-top-color: var(--orange-500);
}

.page-contact .co-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.page-contact .co-card__num {
  margin: 0;
  font-family: var(--font-num);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  color: var(--teal-400);
}

.page-contact .co-card--orange .co-card__num {
  color: var(--orange-400);
}

.page-contact .co-card__title {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.6vw, 1.7rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  margin: 10px 0 8px;
}

.page-contact .co-card__for {
  margin: 0 0 14px;
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  color: var(--text-muted);
}

.page-contact .co-card__body {
  margin: 0 0 20px;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.page-contact .co-card__link {
  margin-top: auto;
  align-self: flex-start;
  font-family: var(--font-num);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: var(--teal-300);
  border-bottom: 1px solid rgba(57, 245, 200, 0.35);
  padding-bottom: 3px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .co-card--orange .co-card__link {
  color: var(--orange-400);
  border-bottom-color: rgba(255, 138, 61, 0.4);
}

.page-contact .co-card__link:hover,
.page-contact .co-card__link:focus-visible {
  color: var(--text-primary);
  border-bottom-color: currentColor;
}

/* ---------- 用户支持列表 ---------- */
.page-contact .contact-support__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
}

.page-contact .support-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-bottom: var(--contact-hair);
}

.page-contact .support-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 16px;
  align-items: start;
  padding: 20px 0;
  border-top: var(--contact-hair);
  transition: border-color 0.25s var(--ease);
}

.page-contact .support-item:hover {
  border-top-color: var(--teal-400);
}

.page-contact .support-item__index {
  font-family: var(--font-num);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  color: var(--teal-400);
  padding-top: 4px;
}

.page-contact .support-item__title {
  font-family: var(--font-display);
  font-size: 1.22rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin: 0 0 6px;
}

.page-contact .support-item__text {
  margin: 0;
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.page-contact .support-item__go {
  grid-column: 2;
  justify-self: start;
  margin-top: 10px;
  font-family: var(--font-num);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  color: var(--teal-300);
  transition: color 0.2s var(--ease);
}

.page-contact .support-item__go-text {
  margin-left: 6px;
}

.page-contact .support-item__go:hover,
.page-contact .support-item__go:focus-visible {
  color: var(--orange-400);
}

/* ---------- 联系方式 ---------- */
.page-contact .contact-direct__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
}

.page-contact .contact-direct h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.75rem, 4vw, 2.85rem);
  line-height: 1.1;
  margin: 10px 0 14px;
}

.page-contact .contact-direct__text {
  margin: 0 0 14px;
  max-width: 46ch;
  color: var(--text-secondary);
  font-size: 0.98rem;
}

.page-contact .contact-direct__aside {
  margin: 0;
  font-family: var(--font-num);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
}

.page-contact .link-quiet {
  color: var(--teal-300);
  border-bottom: 1px solid rgba(57, 245, 200, 0.35);
  padding-bottom: 2px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .link-quiet:hover,
.page-contact .link-quiet:focus-visible {
  color: var(--text-primary);
  border-bottom-color: currentColor;
}

.page-contact .contact-direct__list {
  margin: 0;
  border-top: var(--contact-hair);
}

.page-contact .contact-direct__row {
  display: grid;
  gap: 4px;
  padding: 16px 0;
  border-bottom: var(--contact-hair);
}

.page-contact .contact-direct__key {
  font-family: var(--font-num);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.page-contact .contact-direct__value {
  margin: 0;
  font-family: var(--font-num);
  font-size: clamp(1rem, 2.2vw, 1.3rem);
  line-height: 1.4;
  color: var(--text-primary);
  overflow-wrap: anywhere;
}

.page-contact .contact-direct__value--accent {
  color: var(--orange-400);
}

/* ---------- 来信准备 ---------- */
.page-contact .prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-bottom: var(--contact-hair);
}

.page-contact .prep-item {
  display: grid;
  grid-template-columns: 2.6rem minmax(0, 1fr);
  gap: 4px 14px;
  padding: 20px 0;
  border-top: var(--contact-hair);
}

.page-contact .prep-item__step {
  grid-row: span 2;
  font-family: var(--font-num);
  font-size: 1rem;
  font-weight: 500;
  color: var(--teal-400);
  padding-top: 1px;
}

.page-contact .prep-item__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.16rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.page-contact .prep-item__desc {
  margin: 0;
  font-size: 0.92rem;
  color: var(--text-secondary);
}

/* ---------- 回复节奏 ---------- */
.page-contact .contact-reply__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 40px);
  align-items: start;
}

.page-contact .contact-reply__panel {
  padding: clamp(22px, 4vw, 34px);
  background: var(--panel-800);
  border: var(--contact-hair);
  border-left: 3px solid var(--orange-500);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.page-contact .contact-reply__clock {
  margin: 0;
  font-family: var(--font-num);
  font-size: clamp(1.8rem, 6.4vw, 3.4rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--orange-400);
  overflow-wrap: anywhere;
}

.page-contact .contact-reply__clock-label {
  margin: 10px 0 0;
  font-family: var(--font-num);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.page-contact .contact-reply h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.65rem, 3.6vw, 2.4rem);
  line-height: 1.12;
  margin: 10px 0 14px;
}

.page-contact .contact-reply__text {
  margin: 0 0 14px;
  max-width: 56ch;
  color: var(--text-secondary);
  font-size: 0.96rem;
}

.page-contact .contact-reply__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  margin: 22px 0 0;
}

.page-contact .contact-reply .btn--primary {
  display: inline-block;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  background: var(--orange-500);
  color: #140803;
  font-family: var(--font-num);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  border: 1px solid var(--orange-500);
  transition: background 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-contact .contact-reply .btn--primary:hover,
.page-contact .contact-reply .btn--primary:focus-visible {
  background: var(--orange-400);
  border-color: var(--orange-400);
  transform: translateY(-2px);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-contact .contact-routes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .contact-routes .contact-route__desc {
    max-width: 22ch;
  }

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

  .page-contact .contact-partners__grid > .co-card:last-child {
    grid-column: span 2;
  }

  .page-contact .contact-direct__row {
    grid-template-columns: minmax(0, 0.34fr) minmax(0, 1fr);
    align-items: baseline;
    gap: 12px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: end;
  }

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

  .page-contact .contact-partners__grid > .co-card:last-child {
    grid-column: auto;
  }

  .page-contact .contact-support__grid {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    align-items: start;
  }

  .page-contact .contact-sec-head--sticky {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    margin-bottom: 0;
  }

  .page-contact .support-item {
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: start;
  }

  .page-contact .support-item__go {
    grid-column: 3;
    grid-row: 1;
    justify-self: end;
    margin-top: 4px;
  }

  .page-contact .contact-direct__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
  }

  .page-contact .contact-reply__grid {
    grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.3fr);
    align-items: center;
  }
}

@media (min-width: 1180px) {
  .page-contact .contact-hero__title {
    letter-spacing: 0.005em;
  }

  .page-contact .prep-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(28px, 4vw, 56px);
  }

  .page-contact .prep-item {
    border-top: var(--contact-hair);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    transform: none !important;
  }
}
<<<END>>>