/* ===== 联系我们 ===== */
.page-contact {
  --pc-space: clamp(46px, 6.5vw, 104px);
  --pc-accent: var(--red-gold);
  background: var(--deep-space);
  color: var(--text);
}

.page-contact .section-head {
  margin-bottom: clamp(24px, 3.4vw, 42px);
}

.page-contact .section-title {
  margin-top: 8px;
  font-size: clamp(1.35rem, 3.2vw, 2.1rem);
  line-height: 1.28;
}

.page-contact .pc-advice-link {
  color: var(--cold-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(52, 209, 218, 0.42);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-contact .pc-advice-link:hover,
.page-contact .pc-advice-link:focus-visible {
  color: var(--cold-white);
  border-color: var(--cold-white);
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  padding-top: clamp(26px, 4vw, 52px);
  padding-bottom: clamp(34px, 5vw, 64px);
}

.page-contact .pc-hero-title {
  margin: clamp(14px, 2vw, 24px) 0 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.95rem, 6.2vw, 4.3rem);
  line-height: 1.14;
  letter-spacing: 0.01em;
  color: var(--cold-white);
}

.page-contact .pc-hero-lede {
  margin-top: clamp(16px, 2.2vw, 26px);
  max-width: 62ch;
  color: var(--text-soft);
}

.page-contact .pc-mail {
  margin-top: clamp(28px, 4.2vw, 52px);
  padding-top: clamp(18px, 2.6vw, 30px);
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 22px;
}

.page-contact .pc-mail-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--mist-gray);
}

.page-contact .pc-mail-value {
  font-family: var(--font-mono);
  font-size: clamp(1.02rem, 3.8vw, 2.35rem);
  line-height: 1.22;
  letter-spacing: 0.01em;
  color: var(--cold-cyan);
  word-break: break-all;
}

/* ---------- 三条通道 ---------- */
.page-contact .pc-channels-grid {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
}

.page-contact .pc-channel {
  display: grid;
  gap: 10px;
  padding: clamp(18px, 2.4vw, 28px) 0;
  border-top: 1px solid var(--line);
}

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

.page-contact .pc-channel-tag {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
}

.page-contact .pc-channel-tag .mono {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--red-gold);
}

.page-contact .pc-channel-name {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--cold-white);
}

.page-contact .pc-channel-body p {
  margin: 0 0 8px;
  font-size: 0.95rem;
  line-height: 1.85;
}

.page-contact .pc-channel-body p:last-child {
  margin-bottom: 0;
}

.page-contact .pc-inline-mail {
  color: var(--cold-cyan);
  font-size: 0.92em;
  word-break: break-all;
}

.page-contact .pc-channel-visual {
  margin: 0;
}

.page-contact .pc-channel-visual .media-caption,
.page-contact .pc-prep-visual .media-caption {
  margin-top: 12px;
  color: var(--text-faint);
}

/* ---------- 三类事项 ---------- */
.page-contact .pc-advice-grid {
  display: grid;
  gap: clamp(24px, 3vw, 34px);
}

.page-contact .pc-advice-card {
  --pc-accent: var(--red-gold);
  padding-top: clamp(18px, 2.2vw, 26px);
  border-top: 2px solid var(--pc-accent);
}

.page-contact .pc-advice-card:nth-child(2) {
  --pc-accent: var(--cold-cyan);
}

.page-contact .pc-advice-card:nth-child(3) {
  --pc-accent: var(--copper-orange);
}

.page-contact .pc-advice-title {
  margin: 14px 0 10px;
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--cold-white);
}

.page-contact .pc-advice-card > p.text-soft {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
}

.page-contact .pc-advice-card ul {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-contact .pc-advice-card li {
  position: relative;
  padding-left: 20px;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--text-soft);
}

.page-contact .pc-advice-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 9px;
  height: 1px;
  background: var(--pc-accent);
}

.page-contact .pc-advice-foot {
  margin: 20px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-hair);
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--text-faint);
}

/* ---------- 准备清单 ---------- */
.page-contact .pc-prep-grid {
  display: grid;
  gap: clamp(30px, 4vw, 54px);
}

.page-contact .pc-checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(14px, 1.8vw, 20px);
}

.page-contact .pc-check {
  display: flex;
  gap: 14px;
  padding-bottom: clamp(14px, 1.8vw, 20px);
  border-bottom: 1px solid var(--line-hair);
}

.page-contact .pc-check:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .pc-check-icon {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 2px;
}

.page-contact .pc-check-icon rect,
.page-contact .pc-check-icon path {
  fill: none;
  stroke: var(--red-gold);
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.page-contact .pc-check-title {
  display: block;
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--cold-white);
}

.page-contact .pc-check-note {
  display: block;
  margin-top: 4px;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--text-soft);
}

.page-contact .pc-prep-visual {
  margin: 0;
}

/* ---------- 企业合作 ---------- */
.page-contact .pc-coop-panel {
  padding: clamp(26px, 3.6vw, 48px);
}

.page-contact .pc-coop-grid {
  display: grid;
  gap: clamp(26px, 3.4vw, 46px);
}

.page-contact .pc-coop-grid .text-soft {
  margin: 12px 0 0;
  font-size: 0.94rem;
  line-height: 1.85;
}

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

.page-contact .pc-coop-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  font-size: 0.93rem;
  line-height: 1.75;
  color: var(--text-soft);
}

.page-contact .pc-coop-num {
  flex: 0 0 auto;
  padding-top: 2px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--red-gold);
}

.page-contact .pc-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: clamp(26px, 3.2vw, 40px);
}

.page-contact .pc-coop-foot {
  margin: 20px 0 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--text-faint);
}

/* ---------- 回复节奏 ---------- */
.page-contact .pc-timeline-nodes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 24px;
  position: relative;
}

.page-contact .pc-node {
  position: relative;
  border-left: 1px solid var(--line);
  padding-left: 22px;
}

.page-contact .pc-node::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 5px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--copper-orange);
}

.page-contact .pc-node-time {
  display: block;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--red-gold);
}

.page-contact .pc-node-title {
  display: block;
  margin-top: 8px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--cold-white);
}

.page-contact .pc-node-note {
  display: block;
  margin-top: 6px;
  font-size: 0.88rem;
  line-height: 1.78;
  color: var(--text-soft);
}

.page-contact .pc-rhythm-note {
  margin: clamp(26px, 3.4vw, 40px) 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line-hair);
  font-size: 0.85rem;
  line-height: 1.75;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-contact .pc-channel {
    grid-template-columns: 172px minmax(0, 1fr);
    gap: 32px;
    align-items: start;
  }

  .page-contact .pc-channel-tag {
    flex-direction: column;
    gap: 6px;
  }
}

@media (min-width: 780px) {
  .page-contact .pc-timeline-nodes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(22px, 3vw, 44px);
    padding-top: 42px;
  }

  .page-contact .pc-timeline-nodes::before {
    content: "";
    position: absolute;
    left: 6px;
    right: 6px;
    top: 5px;
    height: 2px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--red-gold), var(--copper-orange) 58%, rgba(147, 166, 188, 0.22));
    opacity: 0.6;
  }

  .page-contact .pc-node {
    border-left: 0;
    padding-left: 0;
    padding-top: 0;
  }

  .page-contact .pc-node::before {
    left: 0;
    top: -43px;
    width: 12px;
    height: 12px;
    background: var(--deep-space);
    border: 2px solid var(--copper-orange);
    box-shadow: 0 0 0 4px rgba(196, 105, 43, 0.16);
  }
}

@media (min-width: 860px) {
  .page-contact .pc-advice-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .pc-prep-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

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

@media (min-width: 980px) {
  .page-contact .pc-channels-grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.85fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-advice-link {
    transition: none;
  }
}