.page-contact {
  --pc-line: rgba(31, 111, 92, 0.42);
  --pc-panel: rgba(11, 42, 34, 0.72);
  --pc-glow: radial-gradient(circle at 82% 6%, rgba(41, 242, 194, 0.15), transparent 58%);
}

.page-contact .breadcrumbs {
  padding-block: 20px 4px;
  font-size: 13px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  background-image: var(--pc-glow);
  padding-block: 12px 56px;
}

.page-contact .hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-contact .hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-contact .hero-kicker::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--orange);
}

.page-contact h1 {
  margin: 14px 0 14px;
  font-family: var(--font-display);
  font-size: clamp(30px, 7.4vw, 54px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-contact .hero-lede {
  max-width: 46ch;
  margin: 0 0 28px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .channel-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .channel {
  position: relative;
  overflow: hidden;
  padding: 16px 18px 16px 20px;
  border: 1px solid var(--pc-line);
  border-radius: var(--r-lg);
  background: linear-gradient(140deg, var(--pc-panel), rgba(6, 26, 21, 0.7));
  transition: border-color 160ms ease, transform 160ms ease;
}

.page-contact .channel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--line);
  transition: background 160ms ease;
}

.page-contact .channel:hover {
  border-color: rgba(41, 242, 194, 0.6);
  transform: translateY(-2px);
}

.page-contact .channel:hover::before {
  background: var(--cyan);
}

.page-contact .channel--mail::before {
  background: var(--cyan);
}

.page-contact .channel--phone::before {
  background: var(--amber);
}

.page-contact .channel-label {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-contact .channel-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 14px;
}

.page-contact .channel-value {
  font-family: var(--font-mono);
  font-size: clamp(16px, 4.4vw, 26px);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.25;
  color: var(--cyan);
  overflow-wrap: anywhere;
  border-bottom: 2px solid rgba(41, 242, 194, 0.4);
  padding-bottom: 2px;
}

.page-contact .channel-value--phone {
  color: var(--amber);
  border-bottom-color: rgba(255, 194, 75, 0.4);
  font-variant-numeric: tabular-nums;
}

.page-contact .channel-value--plain {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 600;
  color: var(--paper);
  border-bottom: none;
  padding-bottom: 0;
}

.page-contact .hero-visual {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-lg);
  border: 1px solid var(--pc-line);
  background: var(--ink-800);
  box-shadow: var(--shadow-card);
}

.page-contact .hero-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(155deg, rgba(6, 26, 21, 0.8) 0%, rgba(6, 26, 21, 0.12) 52%, rgba(41, 242, 194, 0.22) 100%);
}

.page-contact .hero-visual img {
  display: block;
  width: 100%;
  height: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-contact .hero-visual-tag {
  position: absolute;
  z-index: 2;
  left: 16px;
  bottom: 16px;
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid rgba(41, 242, 194, 0.5);
  background: rgba(2, 16, 13, 0.72);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--cyan-soft);
}

/* ---------- 问题分诊 ---------- */
.page-contact .triage-section {
  padding-block: 52px;
}

.page-contact .triage {
  margin-top: 26px;
  border-top: 1px solid var(--pc-line);
}

.page-contact .triage-row {
  display: grid;
  gap: 10px;
  padding: 18px 14px;
  border-bottom: 1px solid var(--pc-line);
  border-left: 3px solid transparent;
  transition: background 160ms ease, border-left-color 160ms ease;
}

.page-contact .triage-row:hover,
.page-contact .triage-row:focus-within {
  border-left-color: var(--cyan);
  background: rgba(18, 59, 48, 0.55);
}

.page-contact .triage-index {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.page-contact .triage-type h3 {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  color: var(--paper);
}

.page-contact .triage-type p {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
}

.page-contact .triage-subject {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.page-contact .triage-subject-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-contact .triage-subject code {
  padding: 4px 10px;
  border-radius: var(--r-sm);
  background: rgba(41, 242, 194, 0.1);
  border: 1px solid rgba(41, 242, 194, 0.22);
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--cyan-soft);
  overflow-wrap: anywhere;
}

.page-contact .triage-action {
  justify-self: start;
  font-size: 14px;
  font-weight: 600;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px dashed rgba(41, 242, 194, 0.5);
  padding-bottom: 1px;
  transition: color 140ms ease, border-color 140ms ease;
}

.page-contact .triage-action:hover {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan-soft);
}

/* ---------- 合作 ---------- */
.page-contact .coop-section {
  padding-block: 52px;
  background: linear-gradient(180deg, rgba(18, 59, 48, 0.62), rgba(6, 26, 21, 0));
  border-block: 1px solid var(--pc-line);
}

.page-contact .coop-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-contact .coop-intro p {
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .coop-hint {
  font-size: 14px;
  color: var(--cyan-soft);
}

.page-contact .coop-list {
  display: grid;
  gap: 12px;
}

.page-contact .coop-item {
  border: 1px solid var(--pc-line);
  border-radius: var(--r-md);
  background: rgba(11, 42, 34, 0.78);
  transition: border-color 160ms ease;
}

.page-contact .coop-item:hover {
  border-color: rgba(41, 242, 194, 0.5);
}

.page-contact .coop-item > summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  color: var(--paper);
}

.page-contact .coop-item > summary::-webkit-details-marker {
  display: none;
}

.page-contact .coop-item > summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--cyan);
}

.page-contact .coop-item[open] > summary::after {
  content: "−";
}

.page-contact .coop-item[open] > summary {
  color: var(--cyan);
  border-bottom: 1px solid var(--pc-line);
}

.page-contact .coop-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-contact .coop-body {
  padding: 14px 18px 18px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .coop-body p {
  margin: 0;
}

/* ---------- 服务时间 ---------- */
.page-contact .hours-section {
  padding-block: 56px;
}

.page-contact .hours-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: start;
}

.page-contact .hours-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .hours-list li {
  padding-left: 16px;
  border-left: 2px solid var(--cyan);
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .hours-list strong {
  display: block;
  margin-bottom: 2px;
  font-family: var(--font-display);
  font-size: 16.5px;
  font-weight: 800;
  color: var(--paper);
}

.page-contact .hours-note {
  margin: 22px 0 0;
  padding: 12px 16px;
  border-radius: var(--r-md);
  background: rgba(255, 90, 54, 0.1);
  border: 1px solid rgba(255, 90, 54, 0.32);
  font-size: 14px;
  line-height: 1.65;
  color: var(--paper);
}

.page-contact .hours-figure {
  margin: 0;
}

/* ---------- 写信前准备 ---------- */
.page-contact .prep-section {
  padding-block: 20px 64px;
}

.page-contact .prep-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .prep-list li {
  padding: 18px;
  border: 1px solid var(--pc-line);
  border-radius: var(--r-md);
  background: linear-gradient(150deg, rgba(11, 42, 34, 0.82), rgba(6, 26, 21, 0.55));
  transition: border-color 160ms ease, transform 160ms ease;
}

.page-contact .prep-list li:hover {
  border-color: rgba(41, 242, 194, 0.55);
  transform: translateY(-2px);
}

.page-contact .prep-index {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--cyan);
  opacity: 0.85;
  font-variant-numeric: tabular-nums;
}

.page-contact .prep-list h3 {
  margin: 6px 0 6px;
  font-family: var(--font-display);
  font-size: 16.5px;
  font-weight: 800;
  color: var(--paper);
}

.page-contact .prep-list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .foot-note {
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid var(--pc-line);
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .foot-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px dashed rgba(41, 242, 194, 0.5);
}

.page-contact .foot-note a:hover {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan-soft);
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-contact .breadcrumbs {
    padding-block: 24px 6px;
  }

  .page-contact .hero-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 40px;
    align-items: stretch;
  }

  .page-contact .hero-visual {
    clip-path: polygon(9% 0, 100% 0, 100% 100%, 0 100%);
  }

  .page-contact .hero-visual img {
    aspect-ratio: 4 / 3;
  }

  .page-contact .triage-row {
    grid-template-columns: 56px minmax(0, 1.05fr) minmax(0, 1.4fr) max-content;
    align-items: center;
    gap: 22px;
    padding: 16px 18px;
  }

  .page-contact .triage-index {
    font-size: 22px;
  }

  .page-contact .triage-action {
    justify-self: end;
  }

  .page-contact .coop-grid {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    gap: 48px;
    align-items: start;
  }

  .page-contact .hours-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 44px;
    align-items: center;
  }

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

@media (min-width: 1180px) {
  .page-contact .channel-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .channel--mail,
  .page-contact .channel--phone {
    grid-column: span 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .channel::before,
  .page-contact .triage-row,
  .page-contact .prep-list li,
  .page-contact .triage-action,
  .page-contact .coop-item {
    transition: none;
  }

  .page-contact .channel:hover,
  .page-contact .prep-list li:hover {
    transform: none;
  }
}
<<<END>>>