.page-contact {
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-contact .c-hero {
  padding-top: clamp(22px, 4vw, 44px);
}

.page-contact .breadcrumbs {
  margin-bottom: clamp(22px, 4vw, 40px);
}

.page-contact .c-hero-grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

.page-contact .c-hero-copy {
  min-width: 0;
}

.page-contact .c-hero-copy h1 {
  margin: 10px 0 18px;
  font-family: var(--font-display);
  font-size: clamp(40px, 8.4vw, 88px);
  font-weight: 800;
  line-height: 0.96;
  letter-spacing: -0.02em;
  color: var(--white);
  text-wrap: balance;
}

.page-contact .c-lede {
  max-width: 52ch;
  margin: 0;
  color: var(--dim);
  font-size: clamp(16px, 2vw, 18px);
  line-height: 1.75;
}

.page-contact .c-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.page-contact .c-hero-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 28px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-contact .c-hero-facts dt {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--dim-2);
}

.page-contact .c-hero-facts dd {
  margin: 6px 0 0;
  font-size: 14px;
  font-weight: 700;
  color: var(--white);
}

.page-contact .c-hero-media {
  margin: 0;
  min-width: 0;
}

.page-contact .c-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius-l);
  border: 1px solid var(--line);
}

.page-contact .c-hero-media figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--dim-2);
}

.page-contact .c-section-head {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: clamp(24px, 4vw, 38px);
}

.page-contact .c-section-head > div {
  min-width: 0;
}

.page-contact .section-title {
  margin: 8px 0 10px;
  font-family: var(--font-display);
  font-size: clamp(30px, 5vw, 52px);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.01em;
}

.page-contact .section-note {
  max-width: 62ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
}

/* 反馈类型切换 */
.page-contact .c-type-switch {
  position: relative;
  display: grid;
  gap: 22px;
}

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

.page-contact .c-type-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .c-type-tab {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-m);
  color: var(--dim);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-contact .c-type-tab-num {
  font-size: 12px;
  color: var(--dim-2);
}

.page-contact .c-type-tab:hover {
  border-color: var(--lime);
  color: var(--white);
}

.page-contact #fb-install:checked ~ .c-type-tabs label[for="fb-install"],
.page-contact #fb-version:checked ~ .c-type-tabs label[for="fb-version"],
.page-contact #fb-schedule:checked ~ .c-type-tabs label[for="fb-schedule"],
.page-contact #fb-export:checked ~ .c-type-tabs label[for="fb-export"] {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink);
}

.page-contact #fb-install:checked ~ .c-type-tabs label[for="fb-install"] .c-type-tab-num,
.page-contact #fb-version:checked ~ .c-type-tabs label[for="fb-version"] .c-type-tab-num,
.page-contact #fb-schedule:checked ~ .c-type-tabs label[for="fb-schedule"] .c-type-tab-num,
.page-contact #fb-export:checked ~ .c-type-tabs label[for="fb-export"] .c-type-tab-num {
  color: rgba(7, 26, 20, 0.62);
}

.page-contact .c-type-panels {
  min-width: 0;
}

.page-contact .c-type-panel {
  display: none;
  padding: clamp(22px, 4vw, 38px);
  background: var(--ink-3);
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
}

.page-contact #fb-install:checked ~ .c-type-panels .c-type-panel--install,
.page-contact #fb-version:checked ~ .c-type-panels .c-type-panel--version,
.page-contact #fb-schedule:checked ~ .c-type-panels .c-type-panel--schedule,
.page-contact #fb-export:checked ~ .c-type-panels .c-type-panel--export {
  display: block;
}

.page-contact .c-panel-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.page-contact .c-panel-head h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(21px, 3vw, 28px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--white);
}

.page-contact .c-type-panel > p {
  margin: 0 0 20px;
  max-width: 64ch;
  color: var(--dim);
  font-size: 16px;
  line-height: 1.75;
}

.page-contact .c-panel-list {
  margin: 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px dashed rgba(200, 255, 61, 0.4);
  display: grid;
  gap: 10px;
}

.page-contact .c-panel-list li {
  position: relative;
  padding-left: 20px;
  color: var(--white);
  font-size: 15px;
  line-height: 1.6;
}

.page-contact .c-panel-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--lime);
}

/* 联系方式 */
.page-contact .c-channels-grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

.page-contact .c-channels-intro {
  min-width: 0;
}

.page-contact .c-channel-media {
  margin: clamp(22px, 4vw, 32px) 0 0;
}

.page-contact .c-channel-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .c-contact-card {
  min-width: 0;
  padding: clamp(24px, 4vw, 40px);
  background: var(--paper);
  color: var(--paper-ink);
  border-radius: var(--radius-l);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.28);
}

.page-contact .c-contact-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  padding: 16px 0;
  border-bottom: 1px dashed rgba(26, 29, 25, 0.24);
}

.page-contact .c-contact-row:first-child {
  padding-top: 0;
}

.page-contact .c-contact-label {
  display: block;
  width: 100%;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: rgba(26, 29, 25, 0.62);
}

.page-contact .c-contact-value {
  font-size: clamp(21px, 3.6vw, 34px);
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.25;
  overflow-wrap: anywhere;
  color: var(--paper-ink);
}

.page-contact .c-contact-note {
  margin: 18px 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(26, 29, 25, 0.78);
}

.page-contact .c-address {
  padding: 16px 0;
  border-top: 1px solid rgba(26, 29, 25, 0.2);
}

.page-contact .c-address p {
  margin: 8px 0 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.6;
}

.page-contact .c-card-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 10px;
  padding-top: 16px;
  border-top: 1px dashed rgba(26, 29, 25, 0.24);
}

.page-contact .c-card-links a {
  color: var(--paper-ink);
  font-size: 14px;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 准备清单 */
.page-contact .c-prep-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-contact .c-prep-item {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 2px 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .c-prep-num {
  grid-row: span 2;
  font-size: 22px;
  line-height: 1.2;
  color: var(--lime);
}

.page-contact .c-prep-item h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--white);
}

.page-contact .c-prep-item p {
  margin: 6px 0 0;
  color: var(--dim);
  font-size: 15px;
  line-height: 1.7;
}

/* 流程 */
.page-contact .c-flow-rail {
  display: grid;
  gap: 18px;
  margin-top: 8px;
  padding-top: 26px;
  border-top: 2px dashed var(--lime);
}

.page-contact .c-flow-step {
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: rgba(7, 26, 20, 0.5);
}

.page-contact .c-flow-num {
  display: block;
  margin-bottom: 10px;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--lime);
}

.page-contact .c-flow-step h3 {
  margin: 0 0 6px;
  font-size: 19px;
  font-weight: 800;
  color: var(--white);
}

.page-contact .c-flow-step p {
  margin: 0;
  color: var(--dim);
  font-size: 15px;
  line-height: 1.65;
}

/* 自助入口 */
.page-contact .c-help-grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

.page-contact .c-help-intro {
  min-width: 0;
}

.page-contact .c-help-links {
  display: grid;
  gap: 12px;
  min-width: 0;
}

.page-contact .c-help-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 22px;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.page-contact .c-help-card:hover {
  border-color: var(--lime);
  transform: translateY(-2px);
}

.page-contact .c-help-card .card-title {
  font-size: 19px;
  font-weight: 800;
  line-height: 1.35;
}

.page-contact .c-help-card .card-text {
  font-size: 14px;
  line-height: 1.65;
}

@media (min-width: 720px) {
  .page-contact .c-flow-rail {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

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

  .page-contact .c-help-card:first-child {
    grid-column: 1 / -1;
  }
}

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

  .page-contact .c-type-switch {
    grid-template-columns: minmax(0, 0.68fr) minmax(0, 1.32fr);
    gap: clamp(28px, 4vw, 52px);
    align-items: start;
  }

  .page-contact .c-type-tabs {
    flex-direction: column;
    flex-wrap: nowrap;
    align-items: stretch;
    position: sticky;
    top: 96px;
  }

  .page-contact .c-type-tab {
    justify-content: flex-start;
    padding: 18px 22px;
    font-size: 16px;
  }

  .page-contact .c-channels-grid {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    align-items: start;
  }

  .page-contact .c-prep-item {
    grid-template-columns: 84px minmax(0, 0.62fr) minmax(0, 1fr);
    gap: 0 24px;
    align-items: baseline;
    padding: 22px 0;
  }

  .page-contact .c-prep-num {
    grid-row: auto;
    font-size: 34px;
  }

  .page-contact .c-prep-item p {
    margin: 0;
  }

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

  .page-contact .c-help-grid {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    align-items: start;
  }

  .page-contact .c-help-card:first-child {
    grid-column: auto;
  }

  .page-contact .c-help-links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: stretch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .c-type-tab,
  .page-contact .c-help-card {
    transition: none;
  }

  .page-contact .c-help-card:hover {
    transform: none;
  }
}
<<<PAGE_CSS_END>>>