.page-contact {
  --ct-grid-line: rgba(174, 184, 179, 0.075);
  --ct-panel: rgba(18, 53, 45, 0.55);
  --ct-lime-soft: rgba(184, 255, 63, 0.16);
  position: relative;
  isolation: isolate;
  overflow-x: clip;
  color: var(--sy-on-dark);
  background-color: var(--sy-ink);
  background-image:
    linear-gradient(to right, var(--ct-grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--ct-grid-line) 1px, transparent 1px);
  background-size: 96px 96px;
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  padding: calc(var(--sy-header-h) + 48px) 0 56px;
}

.page-contact .ct-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--sy-line-strong), transparent);
}

.page-contact .ct-hero__grid {
  display: grid;
  gap: 36px;
  align-items: start;
}

.page-contact .ct-hero__title {
  margin: 14px 0 0;
  font-family: var(--sy-display);
  font-weight: 800;
  font-size: clamp(34px, 8vw, 66px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--sy-paper);
}

.page-contact .ct-hero__lead {
  margin: 22px 0 0;
  max-width: 46ch;
  font-size: clamp(15px, 2.4vw, 18px);
  line-height: 1.8;
  color: var(--sy-on-dark);
}

.page-contact .ct-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-contact .ct-hero__facts {
  display: grid;
  gap: 1px;
  margin: 34px 0 0;
  padding: 0;
  background: var(--sy-line);
  border: 1px solid var(--sy-line);
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.page-contact .ct-hero__fact {
  padding: 14px 16px;
  background: rgba(10, 13, 12, 0.72);
}

.page-contact .ct-hero__fact dt {
  font-family: var(--sy-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--sy-silver);
}

.page-contact .ct-hero__fact dd {
  margin: 6px 0 0;
  font-size: 14px;
  font-weight: 500;
  color: var(--sy-mint);
}

.page-contact .ct-hero__media {
  position: relative;
  margin: 0;
  border: 1px solid var(--sy-line-strong);
  background: var(--sy-glass);
}

.page-contact .ct-hero__media .sy-media__img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
}

.page-contact .ct-hero__media figcaption {
  padding: 12px 14px;
  font-family: var(--sy-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--sy-mint);
  border-top: 1px solid var(--sy-line);
  background: rgba(6, 26, 21, 0.86);
}

/* ---------- 联络渠道 ---------- */
.page-contact .ct-channels {
  padding: 64px 0 56px;
}

.page-contact .ct-channels__grid {
  display: grid;
  gap: 32px;
  align-items: start;
}

.page-contact .ct-channels__intro {
  margin: 16px 0 0;
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--sy-on-dark);
}

.page-contact .ct-channels__list {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
}

.page-contact .ct-channel {
  display: grid;
  gap: 8px;
  padding: 22px 0;
  border-top: 1px solid var(--sy-line);
}

.page-contact .ct-channel:last-child {
  border-bottom: 1px solid var(--sy-line);
}

.page-contact .ct-channel__label {
  font-family: var(--sy-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sy-silver);
}

.page-contact .ct-channel__value {
  margin: 0;
  font-family: var(--sy-display);
  font-weight: 800;
  font-size: clamp(21px, 5vw, 36px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--sy-paper);
  text-decoration: none;
  overflow-wrap: anywhere;
  transition: color 0.2s var(--sy-ease);
}

.page-contact .ct-channel__value--mail {
  font-family: var(--sy-mono);
  font-weight: 500;
  font-size: clamp(17px, 4.2vw, 30px);
  letter-spacing: 0;
  color: var(--sy-lime);
}

.page-contact .ct-channel__value--phone {
  font-family: var(--sy-mono);
  font-weight: 500;
  font-size: clamp(24px, 6vw, 44px);
  letter-spacing: 0.02em;
}

.page-contact .ct-channel__value--addr {
  font-family: var(--sy-body);
  font-weight: 500;
  font-size: clamp(16px, 3vw, 21px);
  line-height: 1.6;
  color: var(--sy-paper);
}

.page-contact a.ct-channel__value:hover {
  color: var(--sy-lime);
}

.page-contact a.ct-channel__value:focus-visible {
  outline: 2px solid var(--sy-lime);
  outline-offset: 4px;
}

.page-contact .ct-channel__note {
  font-size: 14px;
  line-height: 1.7;
  color: var(--sy-on-dark-soft);
}

.page-contact .ct-side__card {
  padding: 24px 22px;
  border: 1px solid var(--sy-line-strong);
  background: var(--ct-panel);
}

.page-contact .ct-side__status {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 16px;
  font-family: var(--sy-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--sy-lime);
}

.page-contact .ct-side__dot {
  width: 9px;
  height: 9px;
  flex: none;
  border-radius: 50%;
  background: var(--sy-lime);
  box-shadow: 0 0 0 3px var(--ct-lime-soft);
}

.page-contact .ct-side__title {
  margin: 0;
  font-family: var(--sy-display);
  font-weight: 800;
  font-size: 22px;
  line-height: 1.3;
  color: var(--sy-paper);
}

.page-contact .ct-side__text {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--sy-on-dark);
}

.page-contact .ct-side__tips {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .ct-side__tips li {
  position: relative;
  padding-left: 20px;
  font-family: var(--sy-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--sy-mint);
}

.page-contact .ct-side__tips li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 8px;
  width: 6px;
  height: 6px;
  background: var(--sy-orange);
}

.page-contact .ct-side__foot {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--sy-line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--sy-silver);
}

/* ---------- 线条图带 ---------- */
.page-contact .ct-band {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-top: 1px solid var(--sy-line);
  border-bottom: 1px solid var(--sy-line);
  background: var(--sy-charcoal);
}

.page-contact .ct-band img {
  display: block;
  width: 100%;
  height: clamp(132px, 20vw, 224px);
  object-fit: cover;
  object-position: center;
  opacity: 0.62;
  filter: grayscale(0.5) contrast(1.1);
}

.page-contact .ct-band figcaption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 26px clamp(18px, 4vw, 56px) 14px;
  font-family: var(--sy-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--sy-mint);
  background: linear-gradient(to top, rgba(6, 26, 21, 0.94), rgba(6, 26, 21, 0));
}

/* ---------- 联系前的准备 ---------- */
.page-contact .ct-prep {
  padding: 64px 0 56px;
}

.page-contact .ct-prep__head {
  max-width: 62ch;
}

.page-contact .ct-prep__lead {
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--sy-on-dark);
}

.page-contact .ct-prep__list {
  list-style: none;
  margin: 32px 0 0;
  padding: 1px;
  display: grid;
  gap: 1px;
  background: var(--sy-line);
  border: 1px solid var(--sy-line);
}

.page-contact .ct-prep__item {
  display: grid;
  gap: 10px;
  padding: 22px 20px;
  background: rgba(10, 13, 12, 0.78);
  transition: background 0.22s var(--sy-ease);
}

.page-contact .ct-prep__item:hover {
  background: rgba(18, 53, 45, 0.72);
}

.page-contact .ct-prep__idx {
  font-family: var(--sy-mono);
  font-size: 24px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--sy-orange);
}

.page-contact .ct-prep__body h3 {
  margin: 0;
  font-family: var(--sy-display);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.4;
  color: var(--sy-paper);
}

.page-contact .ct-prep__body p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--sy-on-dark);
}

.page-contact .ct-prep__link {
  display: inline-block;
  margin-top: 14px;
  font-family: var(--sy-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--sy-lime);
  text-decoration: none;
  border-bottom: 1px solid var(--ct-lime-soft);
  padding-bottom: 2px;
}

.page-contact .ct-prep__link::after {
  content: " →";
}

.page-contact .ct-prep__link:hover {
  border-bottom-color: var(--sy-lime);
}

.page-contact .ct-prep__link:focus-visible {
  outline: 2px solid var(--sy-lime);
  outline-offset: 4px;
}

/* ---------- 内容反馈与协作 ---------- */
.page-contact .ct-collab {
  padding: 8px 0 80px;
}

.page-contact .ct-collab__grid {
  display: grid;
  gap: 32px;
  align-items: start;
}

.page-contact .ct-collab__copy p {
  margin: 16px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.82;
  color: var(--sy-on-dark);
}

.page-contact .ct-collab__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: 26px;
}

.page-contact .ct-collab__textlink {
  font-family: var(--sy-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--sy-silver);
  text-decoration: none;
  border-bottom: 1px solid var(--sy-line-strong);
  padding-bottom: 2px;
}

.page-contact .ct-collab__textlink:hover {
  color: var(--sy-paper);
  border-bottom-color: var(--sy-paper);
}

.page-contact .ct-collab__textlink:focus-visible {
  outline: 2px solid var(--sy-lime);
  outline-offset: 4px;
}

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

.page-contact .ct-collab__panel {
  padding: 22px 20px;
  border-left: 2px solid var(--sy-lime);
  background: rgba(18, 53, 45, 0.5);
  border-top: 1px solid var(--sy-line);
  border-right: 1px solid var(--sy-line);
  border-bottom: 1px solid var(--sy-line);
}

.page-contact .ct-collab__panel:nth-child(2) {
  border-left-color: var(--sy-orange);
}

.page-contact .ct-collab__panel-label {
  margin: 0;
  font-family: var(--sy-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sy-silver);
}

.page-contact .ct-collab__panel h3 {
  margin: 10px 0 0;
  font-family: var(--sy-display);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.4;
  color: var(--sy-paper);
}

.page-contact .ct-collab__panel p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--sy-on-dark-soft);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .ct-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .ct-prep__item {
    grid-template-columns: 68px minmax(0, 1fr);
    gap: 20px;
    padding: 26px 26px;
  }

  .page-contact .ct-prep__idx {
    font-size: 30px;
    padding-top: 2px;
  }

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

@media (min-width: 900px) {
  .page-contact .ct-hero {
    padding: calc(var(--sy-header-h) + 76px) 0 76px;
  }

  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: clamp(32px, 4.5vw, 80px);
  }

  .page-contact .ct-channels__grid {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 336px);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-contact .ct-collab__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: clamp(32px, 5vw, 72px);
  }
}

@media (min-width: 1100px) {
  .page-contact .ct-channels {
    padding: 84px 0 72px;
  }

  .page-contact .ct-prep {
    padding: 84px 0 72px;
  }

  .page-contact .ct-collab {
    padding: 16px 0 104px;
  }
}
<<<END>>>