.page-contact {
  --pc-panel-line: var(--rock-line);
}

.page-contact [id] {
  scroll-margin-top: calc(var(--topbar-h) + 24px);
}

.page-contact .breadcrumb {
  margin: 22px 0 0;
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: 30px 0 0;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -170px;
  left: -12%;
  right: -12%;
  height: 560px;
  background:
    radial-gradient(680px 330px at 18% 44%, rgba(10, 92, 255, .30), transparent 68%),
    radial-gradient(540px 300px at 78% 8%, rgba(123, 44, 255, .22), transparent 66%);
  pointer-events: none;
  z-index: 0;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(42, 49, 64, .55) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42, 49, 64, .55) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: .42;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .8), transparent 76%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .8), transparent 76%);
  pointer-events: none;
  z-index: 0;
}

.page-contact .contact-hero > .wrap {
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.85rem, 6.6vw, 3.4rem);
  line-height: 1.14;
  letter-spacing: .01em;
  color: var(--bone);
  margin: 14px 0 18px;
  max-width: 22em;
}

.page-contact .contact-hero .lede {
  max-width: 60ch;
  color: var(--mist);
  font-size: 1rem;
  line-height: 1.65;
  margin: 0;
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* ---------- 四步流程条 ---------- */

.page-contact .path-strip {
  list-style: none;
  margin: 38px 0 0;
  padding: 1px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--rock-line);
  border: 1px solid var(--rock-line);
}

.page-contact .path-strip__item {
  background: var(--slate-deep);
  padding: 16px 18px 20px;
  transition: background .18s var(--ease), box-shadow .18s var(--ease), transform .18s var(--ease);
}

.page-contact .path-strip__item:hover {
  background: #172030;
  box-shadow: inset 0 0 0 1px rgba(0, 229, 208, .6);
  transform: translateY(-2px);
}

.page-contact .path-strip__num {
  display: block;
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .2em;
  color: var(--blue);
  margin-bottom: 10px;
}

.page-contact .path-strip__item--final .path-strip__num {
  color: var(--moss);
}

.page-contact .path-strip__item--final:hover {
  box-shadow: inset 0 0 0 1px rgba(95, 165, 122, .65);
}

.page-contact .path-strip__title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--bone);
  margin: 0 0 6px;
  overflow-wrap: break-word;
}

.page-contact .path-strip__text {
  font-size: .8125rem;
  line-height: 1.6;
  color: var(--mist);
  margin: 0;
}

/* ---------- 双栏骨架 ---------- */

.page-contact .contact-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 44px;
  padding-top: 62px;
  margin-bottom: 0;
}

.page-contact .contact-split__main .chapter {
  margin-bottom: 58px;
}

.page-contact .contact-split__main .chapter:last-child {
  margin-bottom: 0;
}

/* ---------- 合作卡片 ---------- */

.page-contact .coop-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 26px;
}

.page-contact .coop-card {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-contact .coop-card__top {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .coop-card__title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--bone);
  margin: 0;
  letter-spacing: .01em;
}

.page-contact .coop-card__desc {
  font-size: .875rem;
  line-height: 1.68;
  color: var(--mist);
  margin: 0;
}

.page-contact .coop-card__facts {
  display: grid;
  gap: 12px;
  margin: 4px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--rock-line);
}

.page-contact .coop-card__fact dt {
  font-family: var(--font-mono);
  font-size: .625rem;
  letter-spacing: .18em;
  color: var(--cyan);
  margin-bottom: 5px;
}

.page-contact .coop-card__fact dd {
  margin: 0;
  font-size: .8125rem;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 四段横向条带 ---------- */

.page-contact .step-band {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-contact .step-band__item {
  position: relative;
  padding: 18px 20px 22px;
  background: linear-gradient(180deg, rgba(20, 25, 34, .96), rgba(11, 14, 19, .96));
  border: 1px solid var(--rock-line);
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease), transform .2s var(--ease);
}

.page-contact .step-band__item:hover {
  border-color: rgba(0, 229, 208, .6);
  box-shadow: 0 16px 32px -20px rgba(0, 229, 208, .8);
  transform: translateY(-4px);
}

.page-contact .step-band__item--final::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--moss);
}

.page-contact .step-band__num {
  display: block;
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .2em;
  color: var(--blue);
  margin-bottom: 10px;
}

.page-contact .step-band__item--final .step-band__num {
  color: var(--moss);
}

.page-contact .step-band__title {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--bone);
  margin: 0 0 6px;
}

.page-contact .step-band__time {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .08em;
  color: var(--amber);
  margin: 0 0 12px;
}

.page-contact .step-band__text {
  font-size: .8125rem;
  line-height: 1.62;
  color: var(--mist);
  margin: 0;
}

.page-contact .contact-figure {
  margin: 28px 0 0;
}

/* ---------- 反馈 ---------- */

.page-contact .feedback-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 26px;
  background: var(--rock-line);
  border: 1px solid var(--rock-line);
}

.page-contact .feedback-item {
  background: var(--slate-deep);
  padding: 18px 20px 20px;
  border-left: 2px solid transparent;
  transition: border-color .18s var(--ease), background .18s var(--ease);
}

.page-contact .feedback-item:hover {
  background: #172030;
  border-left-color: var(--amber);
}

.page-contact .feedback-item__title {
  font-size: .9375rem;
  font-weight: 600;
  color: var(--bone);
  margin: 0 0 6px;
}

.page-contact .feedback-item__text {
  font-size: .8125rem;
  line-height: 1.62;
  color: var(--mist);
  margin: 0;
}

.page-contact .feedback-note {
  margin-top: 18px;
  padding: 18px 20px;
  border: 1px dashed rgba(255, 159, 28, .5);
  background: rgba(255, 159, 28, .04);
}

.page-contact .feedback-note p {
  margin: 0;
  font-size: .875rem;
  line-height: 1.68;
  color: var(--bone);
}

.page-contact .feedback-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-contact .feedback-cta__note {
  margin: 14px 0 0;
  font-size: .8125rem;
  line-height: 1.65;
  color: var(--mist);
  max-width: 60ch;
}

/* ---------- 联系方式 ---------- */

.page-contact .contact-panel {
  position: relative;
  padding: 26px 20px 28px;
  background: linear-gradient(180deg, rgba(20, 25, 34, .95), rgba(11, 14, 19, .95));
  border: 1px solid var(--rock-line);
}

.page-contact .contact-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 92px;
  height: 2px;
  background: linear-gradient(90deg, var(--blue), var(--violet));
}

.page-contact .contact-panel__title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.2vw, 2rem);
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--bone);
  margin: 12px 0 10px;
}

.page-contact .contact-panel__lede {
  font-size: .875rem;
  line-height: 1.62;
  color: var(--mist);
  margin: 0 0 20px;
}

.page-contact .contact-panel__visual {
  margin: 0 0 20px;
}

.page-contact .contact-panel__visual img {
  display: block;
  width: 100%;
  height: 138px;
  object-fit: cover;
  opacity: .92;
}

.page-contact .contact-cards {
  display: grid;
  gap: 14px;
}

.page-contact .contact-card {
  position: relative;
  padding: 18px 18px 20px;
  background: var(--slate-panel);
  border: 1px solid var(--rock-line);
  transition: border-color .18s var(--ease), transform .18s var(--ease);
}

.page-contact .contact-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--blue);
}

.page-contact .contact-card:hover {
  border-color: rgba(0, 229, 208, .5);
  transform: translateY(-2px);
}

.page-contact .contact-card__label {
  font-family: var(--font-mono);
  font-size: .625rem;
  letter-spacing: .18em;
  color: var(--mist);
  margin: 12px 0 8px;
}

.page-contact .contact-card .copy-tag {
  display: inline-block;
  margin-top: 2px;
  overflow-wrap: anywhere;
}

.page-contact .contact-card .copy-status {
  display: block;
  font-family: var(--font-mono);
  font-size: .6875rem;
  color: var(--moss);
  margin-top: 6px;
  min-height: 1em;
}

.page-contact .contact-card__value {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.6;
  color: var(--bone);
}

.page-contact .contact-card__note {
  margin: 10px 0 0;
  font-size: .8125rem;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 备案条 ---------- */

.page-contact .filing-strip {
  margin-top: 70px;
  padding: 42px 0 46px;
  border-top: 1px solid var(--rock-line);
  border-bottom: 1px solid var(--rock-line);
  background-color: var(--slate-deep);
  background-image:
    linear-gradient(rgba(42, 49, 64, .55) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42, 49, 64, .55) 1px, transparent 1px);
  background-size: 72px 72px;
}

.page-contact .filing-strip__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px 24px;
}

.page-contact .filing-strip__key {
  display: block;
  font-family: var(--font-mono);
  font-size: .625rem;
  letter-spacing: .18em;
  color: var(--mist);
  margin-bottom: 8px;
}

.page-contact .filing-strip__val {
  display: block;
  font-size: .9375rem;
  color: var(--bone);
  overflow-wrap: break-word;
}

.page-contact .filing-strip__note {
  margin: 30px 0 0;
  font-size: .8125rem;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 吸底反馈入口 ---------- */

.page-contact .feedback-dock {
  position: fixed;
  right: 14px;
  bottom: 14px;
  z-index: 40;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: rgba(11, 14, 19, .95);
  border: 1px solid rgba(255, 159, 28, .62);
  color: var(--bone);
  font-size: .8125rem;
  line-height: 1.3;
  text-decoration: none;
  transition: border-color .18s var(--ease), box-shadow .18s var(--ease), transform .18s var(--ease);
}

.page-contact .feedback-dock:hover {
  border-color: var(--amber);
  box-shadow: 0 14px 28px -16px rgba(255, 159, 28, .9);
  transform: translateY(-2px);
}

.page-contact .feedback-dock__dot {
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 4px rgba(255, 159, 28, .16);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-contact .path-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .feedback-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .filing-strip__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-contact .contact-hero {
    padding-top: 44px;
  }

  .page-contact .path-strip {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-contact .coop-card--wide {
    grid-column: 1 / -1;
  }

  .page-contact .coop-card--wide .coop-card__facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .step-band {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
  }

  .page-contact .step-band__item {
    border-right-width: 0;
    padding: 22px 20px 26px;
  }

  .page-contact .step-band__item:last-child {
    border-right-width: 1px;
  }

  .page-contact .contact-split {
    grid-template-columns: minmax(0, 1.62fr) minmax(0, 1fr);
    gap: 56px;
  }

  .page-contact .contact-panel {
    padding: 30px 26px 32px;
  }

  .page-contact .contact-panel__visual img {
    height: 168px;
  }
}

@media (min-width: 1120px) {
  .page-contact .contact-split {
    grid-template-columns: minmax(0, 1.75fr) minmax(0, 1fr);
    gap: 68px;
  }
}
<<<END>>>