.page-contact {
  --pc-soft: rgba(244, 241, 232, 0.74);
  --pc-ink-soft: #3b4157;
  --pc-ink-mute: #6a7189;
  --pc-grid-line: rgba(46, 60, 120, 0.42);
  --pc-block-pad: clamp(40px, 6vw, 84px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: clamp(20px, 3vw, 32px) 0 clamp(40px, 6vw, 80px);
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--pc-grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--pc-grid-line) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.32;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, 0.25) 70%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, 0.25) 70%, transparent 100%);
}

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

.page-contact .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  padding-bottom: clamp(24px, 4vw, 44px);
}

.page-contact .breadcrumbs a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .breadcrumbs a:hover,
.page-contact .breadcrumbs a:focus-visible {
  color: var(--gold-300);
  border-bottom-color: var(--gold-300);
}

.page-contact .breadcrumbs [aria-current="page"] {
  color: var(--gold-500);
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
  align-items: end;
}

.page-contact h1 {
  margin: 0 0 clamp(16px, 2vw, 24px);
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(2.1rem, 6.4vw, 4.4rem);
  line-height: 1.04;
  letter-spacing: -0.03em;
  color: var(--paper);
  overflow-wrap: break-word;
}

.page-contact .contact-hero__lead {
  margin: 0;
  max-width: 44ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--pc-soft);
}

.page-contact .contact-hero__meta {
  display: grid;
  gap: 16px;
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding-top: clamp(18px, 3vw, 26px);
  border-top: 1px solid var(--line);
}

.page-contact .contact-hero__meta dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}

.page-contact .contact-hero__meta dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.5;
  color: var(--paper);
  overflow-wrap: break-word;
}

.page-contact .contact-hero__meta dd a {
  color: var(--gold-500);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 178, 62, 0.4);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .contact-hero__meta dd a:hover,
.page-contact .contact-hero__meta dd a:focus-visible {
  color: var(--gold-300);
  border-bottom-color: var(--gold-300);
}

.page-contact .contact-hero__media {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--indigo-900);
  box-shadow: var(--shadow-stack);
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.05);
}

.page-contact .contact-hero__media figcaption {
  position: absolute;
  left: 0;
  bottom: 0;
  right: 0;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--paper);
  background: linear-gradient(to top, rgba(10, 17, 48, 0.92), rgba(10, 17, 48, 0));
}

/* ---------- 左右分屏 ---------- */
.page-contact .contact-split {
  padding: var(--pc-block-pad) 0;
  border-top: 1px solid var(--line);
  background: linear-gradient(to bottom, rgba(19, 28, 70, 0.55), rgba(10, 17, 48, 0));
}

.page-contact .contact-split__grid {
  display: grid;
  gap: clamp(36px, 5vw, 56px);
  align-items: start;
}

.page-contact .contact-split .section-head {
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-contact .section-head h2 {
  margin: 8px 0 14px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(1.45rem, 3.1vw, 2.1rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .rule-line {
  display: block;
  width: 40px;
  height: 2px;
  background: var(--gold-500);
}

/* 说明牌 */
.page-contact .channel-card {
  position: relative;
  margin-bottom: 18px;
  padding: 22px 20px 20px;
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-stack);
}

.page-contact .channel-card:last-child {
  margin-bottom: 0;
}

.page-contact .channel-card__tag {
  display: inline-block;
  margin-bottom: 14px;
  padding: 3px 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 2px;
  background: transparent;
}

.page-contact .channel-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.05rem;
  line-height: 1.4;
  letter-spacing: -0.005em;
  color: var(--ink);
}

.page-contact .channel-card__value {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 0.98rem;
  line-height: 1.5;
  letter-spacing: 0.01em;
  color: var(--ink);
  overflow-wrap: break-word;
}

.page-contact .channel-card__value a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--gold-500);
  transition: background-color 0.2s var(--ease);
}

.page-contact .channel-card__value a:hover,
.page-contact .channel-card__value a:focus-visible {
  background: rgba(242, 178, 62, 0.28);
}

.page-contact .channel-card__value--addr {
  font-family: var(--font-sans);
  font-size: 0.98rem;
  font-weight: 700;
  letter-spacing: 0;
}

.page-contact .channel-card__desc {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--pc-ink-soft);
}

.page-contact .channel-card__note {
  margin: 0;
  padding-top: 10px;
  border-top: 1px dashed rgba(10, 14, 31, 0.28);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--pc-ink-mute);
}

/* 四要素清单 */
.page-contact .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .checklist__item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding: 20px 0 22px;
  border-bottom: 1px solid var(--line);
}

.page-contact .checklist__num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--gold-500);
  padding-top: 4px;
}

.page-contact .checklist__item h3 {
  margin: 0 0 8px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.02rem;
  line-height: 1.4;
  color: var(--paper);
}

.page-contact .checklist__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--pc-soft);
}

.page-contact .contact-split__media {
  position: relative;
  margin: 28px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--indigo-800);
}

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

.page-contact .contact-split__media figcaption {
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
  border-top: 1px solid var(--line);
  background: var(--indigo-900);
}

/* ---------- 提交示例 ---------- */
.page-contact .samples {
  padding: var(--pc-block-pad) 0;
  border-top: 1px solid var(--line);
}

.page-contact .samples .section-head {
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-contact .samples__grid {
  display: grid;
  gap: 16px;
}

.page-contact .sample {
  padding: 20px 20px 22px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
  border-radius: var(--radius);
  background: rgba(28, 42, 94, 0.5);
}

.page-contact .sample--fast {
  border-left-color: var(--turquoise);
  background: rgba(47, 181, 154, 0.09);
}

.page-contact .sample .tag {
  margin-bottom: 14px;
}

.page-contact .sample blockquote {
  margin: 0 0 12px;
  padding: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--paper);
}

.page-contact .sample p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 响应节奏 ---------- */
.page-contact .rhythm {
  padding: var(--pc-block-pad) 0;
  border-top: 1px solid var(--line);
  background: linear-gradient(to bottom, rgba(19, 28, 70, 0.6), rgba(10, 17, 48, 0));
}

.page-contact .rhythm .section-head {
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-contact .rhythm__track {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 2px solid var(--line);
}

.page-contact .rhythm__step {
  padding: 22px 0 24px;
  border-bottom: 1px solid var(--line);
}

.page-contact .rhythm__mark {
  display: block;
  width: 28px;
  height: 3px;
  margin-bottom: 16px;
  background: var(--gold-500);
}

.page-contact .rhythm__time {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3.4vw, 2.05rem);
  font-weight: 500;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
  color: var(--gold-500);
  line-height: 1.1;
}

.page-contact .rhythm__label {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .rhythm__step p {
  margin: 0;
  max-width: 40ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--pc-soft);
}

/* ---------- 底部满幅条 ---------- */
.page-contact .contact-bar {
  background: var(--indigo-900);
  border-top: 1px solid var(--line);
  padding-bottom: clamp(36px, 5vw, 60px);
}

.page-contact .contact-bar__flag {
  height: 4px;
  background: var(--flag-gradient);
  margin-bottom: clamp(28px, 4vw, 44px);
}

.page-contact .contact-bar__grid {
  display: grid;
  gap: 26px;
}

.page-contact .contact-bar__col .kicker {
  display: block;
  margin-bottom: 10px;
}

.page-contact .contact-bar__addr,
.page-contact .contact-bar__icp {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 0.98rem;
  line-height: 1.6;
  letter-spacing: 0.01em;
  color: var(--paper);
  overflow-wrap: break-word;
}

.page-contact .contact-bar__hint {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .contact-bar__hint a {
  color: var(--gold-300);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 217, 138, 0.45);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-contact .contact-bar__hint a:hover,
.page-contact .contact-bar__hint a:focus-visible {
  color: var(--gold-500);
  border-bottom-color: var(--gold-500);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-contact .contact-hero__meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .samples__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

  .page-contact .sample--fast {
    grid-column: 1 / -1;
  }

  .page-contact .contact-bar__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 30px 32px;
  }

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

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(32px, 4vw, 56px);
  }

  .page-contact .contact-split__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(40px, 5vw, 64px);
  }

  .page-contact .contact-split__right {
    padding-top: 6px;
  }

  .page-contact .rhythm__track {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-bottom: 1px solid var(--line);
  }

  .page-contact .rhythm__step {
    padding: 26px 24px 28px;
    border-bottom: 0;
    border-right: 1px solid var(--line);
  }

  .page-contact .rhythm__step:first-child {
    padding-left: 0;
  }

  .page-contact .rhythm__step:last-child {
    border-right: 0;
    padding-right: 0;
  }

  .page-contact .contact-bar__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 3fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-contact .contact-bar__col--wide {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .breadcrumbs a,
  .page-contact .contact-hero__meta dd a,
  .page-contact .channel-card__value a,
  .page-contact .contact-bar__hint a {
    transition: none;
  }
}
<<<END>>>