.page-contact {
  --cc-line: #232A31;
  --cc-panel: #14181D;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  padding: 26px 0 4px;
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
  color: var(--muted);
}

.page-contact .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

.page-contact .breadcrumb a:hover {
  color: var(--green);
}

.page-contact .breadcrumb [aria-current="page"] {
  color: var(--text);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding: 22px 0 68px;
}

.page-contact .contact-hero-grid {
  display: grid;
  gap: 36px;
}

.page-contact .contact-kicker {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--green);
}

.page-contact .contact-title {
  margin: 0 0 22px;
  font-size: clamp(2rem, 6.2vw, 3.5rem);
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--text);
  max-width: 16em;
}

.page-contact .contact-hero .lead {
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--muted);
  max-width: 38em;
}

.page-contact .hero-quick {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 18px;
  margin-top: 30px;
  padding-top: 18px;
  border-top: 1px solid var(--cc-line);
}

.page-contact .hero-quick-key {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-contact .hero-quick-val {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--text);
  word-break: break-all;
}

.page-contact .contact-hero-media {
  position: relative;
  margin: 0;
  border: 1px solid var(--cc-line);
  background: var(--cc-panel);
  overflow: hidden;
}

.page-contact .contact-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
}

.page-contact .hero-media-caption {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 8px 14px;
  background: rgba(10, 12, 15, 0.8);
  border-top: 1px solid var(--cc-line);
  border-right: 1px solid var(--cc-line);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  color: var(--muted);
}

/* ---------- 联络卡 ---------- */
.page-contact .contact-cards {
  padding: 4px 0 72px;
}

.page-contact .contact-card-grid {
  display: grid;
  gap: 12px;
  margin-top: 32px;
}

.page-contact .contact-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 26px 24px 30px;
  background: var(--cc-panel);
  border: 1px solid var(--cc-line);
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease);
}

.page-contact .contact-card:hover,
.page-contact .contact-card:focus-within {
  transform: translateY(-4px);
  border-color: var(--blue);
}

.page-contact .contact-card-tag {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  color: var(--green);
}

.page-contact .contact-card-label {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text);
}

.page-contact .contact-card-value {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(0.9375rem, 2.4vw, 1.0625rem);
  line-height: 1.55;
  color: var(--text);
  word-break: break-word;
}

.page-contact .contact-card-value--addr {
  font-family: var(--font-sans);
  letter-spacing: 0.02em;
}

.page-contact .contact-card-note {
  margin: 16px 0 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 咨询准备 ---------- */
.page-contact .contact-prep {
  padding: 0 0 76px;
}

.page-contact .prep-grid {
  display: grid;
  gap: 32px;
  margin-top: 32px;
}

.page-contact .prep-list {
  border-top: 1px solid var(--cc-line);
}

.page-contact .prep-item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 16px;
  padding: 22px 0;
  border-bottom: 1px solid var(--cc-line);
}

.page-contact .prep-num {
  padding-top: 5px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--green);
}

.page-contact .prep-item h3 {
  margin: 0 0 6px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}

.page-contact .prep-item p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .prep-aside {
  background: var(--cc-panel);
  border: 1px solid var(--cc-line);
  border-left: 3px solid var(--green);
  padding: 26px 24px 28px;
}

.page-contact .prep-aside-label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  color: var(--green);
}

.page-contact .prep-aside-text {
  margin: 0 0 20px;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .prep-aside-link {
  display: inline-block;
  font-size: 0.875rem;
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(61, 169, 255, 0.4);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .prep-aside-link:hover {
  color: var(--green);
  border-bottom-color: var(--green);
}

/* ---------- 回复节奏 ---------- */
.page-contact .contact-window-section {
  padding: 0 0 76px;
}

.page-contact .window-strip {
  display: grid;
  gap: 28px;
  margin-top: 32px;
  padding: 32px 0;
  border-top: 1px solid var(--cc-line);
  border-bottom: 1px solid var(--cc-line);
}

.page-contact .window-clock {
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 5vw, 2.25rem);
  color: var(--text);
}

.page-contact .window-dash {
  flex: 1 1 auto;
  min-width: 36px;
  height: 1px;
  background: linear-gradient(90deg, var(--green), rgba(35, 42, 49, 0.2));
}

.page-contact .window-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .window-list li {
  display: grid;
  grid-template-columns: 14px minmax(0, 1fr);
  gap: 12px;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .window-list li::before {
  content: "";
  width: 6px;
  height: 6px;
  margin-top: 11px;
  background: var(--green);
}

/* ---------- 地域与备案 ---------- */
.page-contact .region-band {
  padding: 64px 0;
  background: var(--cc-panel);
  border-top: 1px solid var(--cc-line);
  border-bottom: 1px solid var(--cc-line);
}

.page-contact .region-grid {
  display: grid;
  gap: 32px;
  margin-top: 28px;
}

.page-contact .region-text {
  margin: 0 0 18px;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--muted);
  max-width: 38em;
}

.page-contact .region-meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--green);
}

.page-contact .region-skyline {
  align-self: end;
}

.page-contact .region-skyline svg {
  display: block;
  width: 100%;
  height: auto;
  max-width: 420px;
}

.page-contact .skyline-blocks rect {
  fill: #1e242b;
}

.page-contact .skyline-windows rect {
  fill: var(--green);
  opacity: 0.9;
}

/* ---------- 合作与数据对接 ---------- */
.page-contact .coop-section {
  padding: 76px 0;
}

.page-contact .coop-grid {
  display: grid;
  gap: 36px;
  margin-top: 32px;
}

.page-contact .coop-lead {
  margin: 0 0 26px;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--muted);
  max-width: 38em;
}

.page-contact .coop-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-contact .coop-list li {
  padding-left: 18px;
  border-left: 1px solid var(--cc-line);
  transition: border-color 0.24s var(--ease);
}

.page-contact .coop-list li:hover {
  border-left-color: var(--orange);
}

.page-contact .coop-list h3 {
  margin: 0 0 6px;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text);
}

.page-contact .coop-list p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .coop-mail {
  margin: 28px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--cc-line);
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .coop-mail-addr {
  font-family: var(--font-mono);
  color: var(--text);
  word-break: break-all;
}

.page-contact .coop-media {
  margin: 0;
  border: 1px solid var(--cc-line);
  background: var(--cc-panel);
  overflow: hidden;
}

.page-contact .coop-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
}

/* ---------- 收尾 ---------- */
.page-contact .contact-tail {
  padding: 0 0 84px;
}

.page-contact .tail-grid {
  display: grid;
  gap: 26px;
  padding-top: 36px;
  border-top: 1px solid var(--cc-line);
}

.page-contact .tail-copy p {
  margin: 14px 0 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--muted);
  max-width: 34em;
}

.page-contact .tail-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 20px;
}

.page-contact .tail-plain {
  font-size: 0.875rem;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid rgba(154, 165, 174, 0.35);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .tail-plain:hover {
  color: var(--blue);
  border-bottom-color: var(--blue);
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 860px) {
  .page-contact .contact-hero {
    padding: 30px 0 88px;
  }

  .page-contact .contact-hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: center;
  }

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

  .page-contact .contact-card + .contact-card {
    margin-left: -1px;
  }

  .page-contact .contact-card:hover,
  .page-contact .contact-card:focus-within {
    z-index: 1;
  }

  .page-contact .prep-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: start;
  }

  .page-contact .window-strip {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 56px;
    align-items: center;
  }

  .page-contact .region-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: end;
  }

  .page-contact .coop-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 56px;
    align-items: start;
  }

  .page-contact .tail-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 48px;
    align-items: center;
  }
}

/* ---------- 动效尊重 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-card,
  .page-contact .coop-list li,
  .page-contact .prep-aside-link,
  .page-contact .tail-plain {
    transition: none;
  }

  .page-contact .contact-card:hover,
  .page-contact .contact-card:focus-within {
    transform: none;
  }
}