.page-contact {
  --pc-panel: rgba(27, 42, 74, 0.6);
  --pc-panel-soft: rgba(27, 42, 74, 0.38);
  display: block;
  position: relative;
  padding-bottom: 24px;
}

.page-contact .wrap {
  padding-top: 8px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  display: grid;
  gap: 28px;
  padding: 26px 0 34px;
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 104px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), rgba(0, 229, 255, 0));
}

.page-contact .eyebrow {
  margin-bottom: 10px;
}

.page-contact h1 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(2rem, 6.4vw, 3.5rem);
  line-height: 1.04;
  letter-spacing: -0.028em;
  margin: 0 0 16px;
  max-width: 18ch;
}

.page-contact .hero-lede {
  color: var(--text);
  opacity: 0.86;
  font-size: 1rem;
  line-height: 1.7;
  max-width: 54ch;
  margin: 0 0 22px;
}

.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}

.page-contact .hero-note {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin: 0;
}

.page-contact .hero-figure {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--midnight);
  box-shadow: var(--shadow-soft);
}

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

/* ---------- 区块通用 ---------- */
.page-contact .section {
  margin-top: 48px;
}

.page-contact .section-head {
  margin-bottom: 26px;
}

.page-contact h2 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  line-height: 1.14;
  letter-spacing: -0.022em;
  margin: 0 0 12px;
}

.page-contact h3 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.02rem;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin: 0 0 6px;
}

.page-contact .section-lede {
  max-width: 62ch;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.72;
  margin: 0;
}

/* ---------- 联系方式 ---------- */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-contact .channel-card {
  position: relative;
  overflow: hidden;
  padding: 22px 20px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(165deg, var(--pc-panel), rgba(10, 17, 40, 0.92));
  box-shadow: var(--shadow-soft);
  transition: transform 0.34s var(--ease), border-color 0.34s var(--ease);
}

.page-contact .channel-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), rgba(0, 229, 255, 0));
  opacity: 0.85;
}

.page-contact .channel-card--signal::after {
  background: linear-gradient(90deg, var(--orange), rgba(255, 138, 0, 0));
}

.page-contact .channel-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 229, 255, 0.42);
}

.page-contact .channel-card__icon {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  margin-bottom: 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--cyan);
  background: rgba(0, 229, 255, 0.07);
}

.page-contact .channel-card--signal .channel-card__icon {
  color: var(--orange);
  background: rgba(255, 138, 0, 0.08);
}

.page-contact .channel-card__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 10px;
}

.page-contact .channel-value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(0.92rem, 2.5vw, 1.02rem);
  font-weight: 600;
  line-height: 1.45;
  color: var(--text);
  overflow-wrap: anywhere;
  margin: 0 0 12px;
}

.page-contact .channel-note {
  font-size: 0.88rem;
  line-height: 1.66;
  color: var(--muted);
  margin: 0;
}

.page-contact .channel-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin: 22px 0 0;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  border-radius: 10px;
  background: var(--pc-panel-soft);
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.6;
}

/* ---------- 反馈与进度 ---------- */
.page-contact .feedback {
  padding: 30px 20px 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(120% 150% at 100% 0%, rgba(46, 26, 71, 0.8), rgba(10, 17, 40, 0) 62%),
    linear-gradient(180deg, rgba(27, 42, 74, 0.62), rgba(10, 17, 40, 0.34));
  box-shadow: var(--shadow-soft);
}

.page-contact .feedback-grid {
  display: grid;
  gap: 24px;
}

.page-contact .feedback-lede {
  max-width: 52ch;
  color: var(--text);
  opacity: 0.84;
  font-size: 0.96rem;
  line-height: 1.7;
  margin: 0 0 18px;
}

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

.page-contact .feedback-points li {
  position: relative;
  padding-left: 22px;
  font-size: 0.92rem;
  line-height: 1.66;
  color: var(--muted);
}

.page-contact .feedback-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 10px;
  height: 2px;
  background: var(--orange);
}

.page-contact .feedback-figure {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--midnight);
}

.page-contact .fb-track {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 28px 0 18px;
}

.page-contact .fb-step__bar {
  height: 8px;
  margin-bottom: 10px;
  border-radius: 999px;
  background: rgba(42, 59, 92, 0.72);
  overflow: hidden;
}

.page-contact .fb-step__bar i {
  display: block;
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: var(--muted);
}

.page-contact .fb-step--done .fb-step__bar i {
  width: 100%;
  background: linear-gradient(90deg, rgba(0, 229, 255, 0.55), var(--cyan));
}

.page-contact .fb-step--now .fb-step__bar i {
  width: 64%;
  background: linear-gradient(90deg, rgba(255, 138, 0, 0.5), var(--orange));
  animation: pc-fb-pulse 2.4s ease-in-out infinite;
}

.page-contact .fb-step__label {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-contact .fb-step--done .fb-step__label {
  color: var(--cyan);
}

.page-contact .fb-step--now .fb-step__label {
  color: var(--orange);
}

.page-contact .fb-meta {
  font-size: 0.88rem;
  line-height: 1.66;
  color: var(--muted);
  margin: 0;
}

.page-contact .fb-meta strong {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  color: var(--text);
}

@keyframes pc-fb-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* ---------- 合作 ---------- */
.page-contact .coop {
  position: relative;
  padding: 30px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(200deg, rgba(46, 26, 71, 0.7), rgba(10, 17, 40, 0.55));
  overflow: hidden;
}

.page-contact .coop::before {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 220px;
  height: 220px;
  border: 1px solid rgba(0, 229, 255, 0.16);
  border-radius: 50%;
  pointer-events: none;
}

.page-contact .coop-lede {
  max-width: 64ch;
  color: var(--text);
  opacity: 0.84;
  font-size: 0.95rem;
  line-height: 1.72;
  margin: 0 0 24px;
}

.page-contact .coop-list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .coop-list li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.page-contact .coop-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 1rem;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: 0.04em;
}

.page-contact .coop-list p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.68;
  color: var(--muted);
}

.page-contact .coop-hint {
  margin: 0;
  padding: 14px 16px;
  border: 1px dashed rgba(0, 229, 255, 0.35);
  border-radius: 10px;
  font-size: 0.86rem;
  line-height: 1.66;
  color: var(--text);
  opacity: 0.88;
  overflow-wrap: anywhere;
}

/* ---------- 问题解答 ---------- */
.page-contact .qa-list {
  display: grid;
  gap: 10px;
}

.page-contact .qa {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--pc-panel-soft);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}

.page-contact .qa[open] {
  border-color: rgba(0, 229, 255, 0.4);
  background: rgba(27, 42, 74, 0.6);
}

.page-contact .qa summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.98rem;
  line-height: 1.45;
  color: var(--text);
}

.page-contact .qa summary::-webkit-details-marker {
  display: none;
}

.page-contact .qa summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--cyan);
}

.page-contact .qa[open] summary::after {
  content: "–";
  color: var(--orange);
}

.page-contact .qa__body {
  padding: 0 18px 18px;
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .qa__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.4);
}

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

/* ---------- 继续了解 ---------- */
.page-contact .pathways {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 44px;
}

.page-contact .pathways a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--pc-panel-soft);
  color: var(--text);
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-contact .pathways a::after {
  content: "\2192";
  font-family: var(--font-mono);
  color: var(--cyan);
}

.page-contact .pathways a:hover {
  border-color: rgba(0, 229, 255, 0.45);
  color: var(--cyan);
  transform: translateX(3px);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .section {
    margin-top: 62px;
  }

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

  .page-contact .coop-list li {
    grid-template-columns: 56px minmax(0, 1fr);
    align-items: start;
  }

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

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

@media (min-width: 900px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: end;
    gap: 48px;
    padding: 40px 0 48px;
  }

  .page-contact .hero-copy {
    padding-bottom: 6px;
  }

  .page-contact .feedback {
    padding: 38px 34px 34px;
  }

  .page-contact .feedback-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
    gap: 38px;
  }

  .page-contact .coop {
    padding: 38px 34px;
  }

  .page-contact .coop-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .coop-list li {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}

@media (min-width: 1120px) {
  .page-contact .channel-card {
    padding: 26px 24px 28px;
  }

  .page-contact .contact-hero {
    gap: 64px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .fb-step--now .fb-step__bar i {
    animation: none;
  }

  .page-contact .channel-card,
  .page-contact .pathways a,
  .page-contact .qa {
    transition: none;
  }

  .page-contact .channel-card:hover,
  .page-contact .pathways a:hover {
    transform: none;
  }
}