.page-contact {
  --pc-gap: clamp(24px, 4vw, 44px);
  padding-top: clamp(96px, 13vw, 128px);
  padding-bottom: clamp(48px, 7vw, 88px);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 40px);
  align-items: start;
}

.page-contact .breadcrumb-nav {
  margin-bottom: 20px;
}

.page-contact .contact-hero__title {
  margin: 12px 0 16px;
  font-size: clamp(29px, 4.4vw, 52px);
  line-height: 1.16;
  font-weight: 900;
  letter-spacing: -0.025em;
  color: var(--paper);
}

.page-contact .contact-hero__lede {
  margin: 0;
  max-width: 36em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .contact-hero__art {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-2);
  aspect-ratio: 16 / 9;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 32px), calc(100% - 32px) 100%, 0 100%);
}

.page-contact .contact-hero__art::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(205deg, rgba(53, 240, 200, 0.14), rgba(6, 18, 15, 0) 48%, rgba(255, 138, 43, 0.16));
}

.page-contact .contact-hero__art img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.88) contrast(1.04);
}

@media (min-width: 1000px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 56px);
    align-items: stretch;
  }

  .page-contact .contact-hero__art {
    aspect-ratio: auto;
    height: 100%;
    min-height: 430px;
  }
}

/* ---------- 渠道卡 ---------- */
.page-contact .channel-deck {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: clamp(26px, 4vw, 38px);
}

.page-contact .channel {
  position: relative;
  border: 1px solid var(--cy);
  border-radius: 3px;
  background:
    linear-gradient(150deg, rgba(53, 240, 200, 0.07), rgba(53, 240, 200, 0) 58%),
    var(--ink-2);
  overflow: hidden;
  transition: border-color 200ms var(--ease), box-shadow 200ms var(--ease);
}

.page-contact .channel:hover,
.page-contact .channel[open] {
  border-color: var(--cy-soft);
  box-shadow: 0 0 0 1px rgba(53, 240, 200, 0.24), 0 22px 46px -34px rgba(53, 240, 200, 0.8);
}

.page-contact .channel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 24px;
  height: 24px;
  background: var(--orange);
  clip-path: polygon(0 0, 100% 0, 0 100%);
  opacity: 0;
  pointer-events: none;
  transition: opacity 200ms var(--ease);
}

.page-contact .channel:hover::before,
.page-contact .channel[open]::before {
  opacity: 1;
}

.page-contact .channel__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0 16px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
  -webkit-tap-highlight-color: transparent;
}

.page-contact .channel__head::-webkit-details-marker {
  display: none;
}

.page-contact .channel__head::marker {
  content: "";
}

.page-contact .channel__id {
  align-self: start;
  padding-top: 4px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-contact .channel__meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.page-contact .channel__name {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .channel__desc {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--mist);
}

.page-contact .channel__mark {
  position: relative;
  width: 22px;
  height: 22px;
  border: 1px solid var(--line);
  border-radius: 50%;
  flex: none;
}

.page-contact .channel__mark::before,
.page-contact .channel__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--cy);
  transform: translate(-50%, -50%);
}

.page-contact .channel__mark::before {
  width: 10px;
  height: 1.5px;
}

.page-contact .channel__mark::after {
  width: 1.5px;
  height: 10px;
  transition: transform 200ms var(--ease), opacity 200ms var(--ease);
}

.page-contact .channel[open] .channel__mark::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-contact .channel__body {
  padding: 16px 20px 20px;
  border-top: 1px dashed var(--line);
}

.page-contact .channel[open] > .channel__body {
  animation: pc-rise 280ms var(--ease) both;
}

@keyframes pc-rise {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: none; }
}

.page-contact .channel__value {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.7vw, 16px);
  letter-spacing: 0.02em;
  color: var(--cy);
  overflow-wrap: anywhere;
}

.page-contact .channel__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .channel__note {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .channel__note a {
  color: var(--cy);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.page-contact .channel__note a:hover {
  border-bottom-color: var(--cy);
}

.page-contact .channel__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .channel__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--paper);
  opacity: 0.88;
}

.page-contact .channel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.74em;
  width: 7px;
  height: 1.5px;
  background: var(--cy);
}

.page-contact .fieldgrid {
  display: grid;
  grid-template-columns: minmax(0, auto) minmax(0, 1fr);
  gap: 8px 14px;
  margin: 0;
  padding: 14px;
  border: 1px dashed var(--line);
  background: rgba(6, 18, 15, 0.5);
}

.page-contact .fieldgrid dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--cy);
  white-space: nowrap;
}

.page-contact .fieldgrid dd {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
  overflow-wrap: anywhere;
}

/* ---------- 通用区块 ---------- */
.page-contact .block {
  margin-top: clamp(56px, 9vw, 104px);
}

.page-contact .block__title {
  margin: 10px 0 14px;
  font-size: clamp(23px, 3.2vw, 34px);
  line-height: 1.24;
  font-weight: 900;
  letter-spacing: -0.022em;
  color: var(--paper);
}

.page-contact .block__lede {
  margin: 0;
  max-width: 44em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 提交要点 ---------- */
.page-contact .steps-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 40px);
  margin-top: clamp(26px, 4vw, 38px);
}

.page-contact .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  transition: background-color 180ms var(--ease);
}

.page-contact .step:first-child {
  border-top: 1px solid var(--line);
}

.page-contact .step__num {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--orange);
  transition: color 180ms var(--ease);
}

.page-contact .step:hover .step__num {
  color: var(--cy);
}

.page-contact .step__title {
  margin: 0 0 6px;
  font-size: 15.5px;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-contact .step__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .steps-art {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-2);
  overflow: hidden;
}

.page-contact .steps-art::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(90deg, rgba(53, 240, 200, 0.09) 0 1px, transparent 1px 26px);
  mix-blend-mode: screen;
}

.page-contact .steps-art img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.82) contrast(1.05);
  opacity: 0.92;
}

@media (min-width: 900px) {
  .page-contact .steps-layout {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: start;
  }
}

/* ---------- 纠错与合作 ---------- */
.page-contact .split {
  gap: clamp(24px, 4vw, 48px);
  align-items: stretch;
}

.page-contact .fix,
.page-contact .partner {
  padding: 24px 22px;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cy);
}

.page-contact .partner {
  border-left-color: var(--violet);
  background:
    linear-gradient(160deg, rgba(142, 124, 255, 0.08), rgba(11, 33, 27, 0) 62%),
    var(--ink-2);
}

.page-contact .pane-title {
  margin: 8px 0 12px;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.012em;
  color: var(--paper);
}

.page-contact .fix__text,
.page-contact .partner__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .fix .btn,
.page-contact .partner .btn {
  margin-top: 18px;
}

/* ---------- 回复时效 ---------- */
.page-contact .response {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 36px);
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(53, 240, 200, 0.06), rgba(6, 18, 15, 0) 62%);
}

.page-contact .response__list {
  margin: 0;
  display: grid;
}

.page-contact .response__item {
  display: grid;
  gap: 5px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .response__item:first-child {
  border-top: 1px solid var(--line);
}

.page-contact .response__item dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cy);
}

.page-contact .response__item dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--paper);
  opacity: 0.86;
}

.page-contact .response__help {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .response__help a {
  color: var(--cy);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: border-color 180ms var(--ease);
}

.page-contact .response__help a:hover {
  border-bottom-color: var(--cy);
}

@media (min-width: 900px) {
  .page-contact .response {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: clamp(28px, 4vw, 52px);
  }
}

/* ---------- 结尾联系横条 ---------- */
.page-contact .endcap {
  position: relative;
  margin-top: clamp(56px, 9vw, 96px);
  padding: clamp(24px, 4vw, 38px);
  background: var(--ink-2);
  border-top: 2px solid var(--orange);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-contact .endcap::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(115deg, transparent 0 22px, rgba(53, 240, 200, 0.05) 22px 23px);
}

.page-contact .endcap__grid,
.page-contact .endcap__note {
  position: relative;
  z-index: 1;
}

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

.page-contact .endcap__cell {
  min-width: 0;
}

.page-contact .endcap__val {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.8vw, 18px);
  letter-spacing: 0.01em;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .endcap__val--text {
  font-family: var(--font-sans);
  font-size: 14.5px;
  font-weight: 500;
  line-height: 1.75;
}

.page-contact .endcap__note {
  margin: 22px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist);
}

@media (min-width: 760px) {
  .page-contact .endcap__grid {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr) minmax(0, 1.5fr);
    gap: clamp(20px, 3vw, 40px);
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .channel::before,
  .page-contact .channel__mark::after,
  .page-contact .step,
  .page-contact .step__num,
  .page-contact .response__help a {
    transition: none;
  }

  .page-contact .channel[open] > .channel__body {
    animation: none;
  }
}
<<<END>>>