/* ===== 商务合作页 · page-contact ===== */

.page-contact {
  --co-hair: rgba(35, 64, 58, .72);
  --co-hair-soft: rgba(35, 64, 58, .42);
  --co-lift: #1B2724;
  background-color: var(--ink-900);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */

.page-contact .co-hero {
  position: relative;
  padding: clamp(84px, 12vh, 132px) 0 clamp(40px, 6vw, 72px);
}

.page-contact .co-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--lime), transparent);
  opacity: .35;
}

.page-contact .co-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 44px);
  margin-top: clamp(18px, 3vw, 30px);
}

.page-contact .co-hero-copy h1 {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 62px);
  line-height: .98;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-contact .co-lead {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 62ch;
  font-size: clamp(16px, 1.3vw, 18px);
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .co-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-contact .co-hero-facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--co-hair);
  border: 1px solid var(--co-hair);
  border-radius: var(--radius-panel);
  overflow: hidden;
}

.page-contact .co-hero-facts > div {
  background: var(--panel);
  padding: 16px 18px;
}

.page-contact .co-hero-facts dt {
  margin: 0;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--mist);
}

.page-contact .co-hero-facts dd {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(20px, 2.2vw, 26px);
  font-weight: 700;
  line-height: 1;
  color: var(--lime);
}

/* ---------- 合作方向 + 联系渠道 ---------- */

.page-contact .co-split {
  padding: clamp(40px, 6vw, 72px) 0 clamp(16px, 2vw, 24px);
}

.page-contact .co-split-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 4vw, 52px);
}

.page-contact .co-col-main .section-head,
.page-contact .co-side .section-head {
  margin-bottom: clamp(16px, 2vw, 22px);
}

.page-contact .co-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(18px, 2.4vw, 26px);
}

.page-contact .co-count {
  margin: 16px 0 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--mist);
}

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

.page-contact .co-direction-list > li {
  position: relative;
  padding: 22px 22px 24px 24px;
  background: var(--panel);
  border-left: 3px solid var(--tactical);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
  transition: border-color .22s var(--ease), background-color .22s var(--ease), transform .22s var(--ease);
}

.page-contact .co-direction-list > li:hover {
  border-left-color: var(--lime);
  background: var(--co-lift);
  transform: translateX(3px);
}

.page-contact .co-direction-list > li.is-filtered {
  display: none;
}

.page-contact .co-dir-idx {
  display: inline-block;
  margin-bottom: 9px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--lime);
}

.page-contact .co-direction-list h3 {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: clamp(18px, 1.7vw, 21px);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .co-dir-fit {
  margin: 0 0 9px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--mint);
}

.page-contact .co-direction-list p:last-child {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.74;
  color: var(--mist);
}

/* 联系渠道卡片 */

.page-contact .co-side-card {
  position: relative;
  padding: clamp(18px, 2.6vw, 26px);
  background: var(--panel);
  border: 1px solid var(--tactical);
  border-radius: var(--radius-panel);
  overflow: hidden;
}

.page-contact .co-side-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--lime), rgba(198, 255, 61, 0));
}

.page-contact .co-channel {
  padding: 18px 0;
  border-bottom: 1px solid var(--co-hair-soft);
}

.page-contact .co-channel:first-child { padding-top: 6px; }
.page-contact .co-channel:last-of-type { padding-bottom: 4px; border-bottom: 0; }

.page-contact .co-channel-label {
  margin: 0;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--mist);
}

.page-contact .co-channel-value {
  margin: 8px 0 0;
  font-size: clamp(17px, 1.9vw, 21px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .co-channel-value--mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .01em;
  color: var(--lime);
}

.page-contact .co-channel-value--addr {
  font-size: clamp(15px, 1.5vw, 17px);
  font-weight: 600;
  line-height: 1.62;
}

.page-contact .co-channel-note {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .co-side-foot {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--co-hair-soft);
  font-size: 13.5px;
}

.page-contact .co-side-foot a {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid rgba(124, 224, 195, .4);
  padding-bottom: 2px;
}

.page-contact .co-side-foot a:hover {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

/* ---------- 材料清单 ---------- */

.page-contact .co-materials {
  padding: clamp(48px, 7vw, 88px) 0;
}

.page-contact .co-section-sub {
  margin: 14px 0 0;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .co-materials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 44px);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-contact .co-checklist {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .co-checklist li {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--co-hair-soft);
}

.page-contact .co-checklist li:first-child { padding-top: 0; }

.page-contact .co-check-num {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  font-weight: 700;
  color: var(--lime);
}

.page-contact .co-checklist h3 {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -.005em;
  color: var(--paper);
}

.page-contact .co-checklist p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .co-materials-media {
  border-radius: var(--radius-panel);
  overflow: hidden;
  border: 1px solid var(--tactical);
}

/* ---------- 地域带 ---------- */

.page-contact .co-geo {
  padding: clamp(48px, 7vw, 88px) 0;
  background: linear-gradient(180deg, var(--ink-850) 0%, var(--ink-900) 100%);
  border-top: 1px solid var(--co-hair-soft);
  border-bottom: 1px solid var(--co-hair-soft);
}

.page-contact .co-geo-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.5vw, 40px);
  align-items: center;
}

.page-contact .co-geo-visual {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-panel);
  overflow: hidden;
  border: 1px solid var(--tactical);
  background: var(--ink-850);
}

.page-contact .co-geo-visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .5;
}

.page-contact .co-geo-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(198, 255, 61, .09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(198, 255, 61, .09) 1px, transparent 1px);
  background-size: 44px 44px;
  pointer-events: none;
}

.page-contact .co-pin {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 6px rgba(198, 255, 61, .14), 0 0 18px rgba(198, 255, 61, .55);
}

.page-contact .co-pin-a { top: 32%; left: 24%; }
.page-contact .co-pin-c { top: 22%; left: 74%; }

.page-contact .co-pin-b {
  top: 58%;
  left: 52%;
  background: var(--ember);
  box-shadow: 0 0 0 6px rgba(255, 90, 43, .16), 0 0 18px rgba(255, 90, 43, .55);
}

.page-contact .co-geo-copy h2 {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-size: clamp(24px, 3.4vw, 40px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-contact .co-geo-copy p {
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .co-geo-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
}

.page-contact .co-link {
  color: var(--mint);
  font-size: 15px;
  text-decoration: none;
  border-bottom: 1px solid rgba(124, 224, 195, .45);
  padding-bottom: 2px;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-contact .co-link:hover {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

/* ---------- 处理时效 ---------- */

.page-contact .co-timing {
  padding: clamp(48px, 7vw, 88px) 0;
}

.page-contact .co-steps {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--co-hair-soft);
  border: 1px solid var(--co-hair-soft);
  border-radius: var(--radius-panel);
  overflow: hidden;
}

.page-contact .co-steps li {
  padding: 22px 20px 24px;
  background: var(--panel);
}

.page-contact .co-step-num {
  display: inline-block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--ember);
}

.page-contact .co-steps h3 {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 800;
  color: var(--paper);
}

.page-contact .co-steps p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--mist);
}

/* ---------- 媒体与引用 ---------- */

.page-contact .co-media {
  padding: clamp(48px, 7vw, 88px) 0;
}

.page-contact .co-media-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 44px);
}

.page-contact .co-media-copy p {
  margin: 16px 0 0;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .co-cite {
  padding: clamp(20px, 2.8vw, 28px);
  border-radius: var(--radius-panel);
}

.page-contact .co-cite h3 {
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: .01em;
  color: var(--paper);
}

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

.page-contact .co-cite li {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 12px;
  padding-bottom: 12px;
  font-size: 14.5px;
  line-height: 1.62;
  color: var(--paper);
  border-bottom: 1px dashed var(--co-hair-soft);
}

.page-contact .co-cite li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .co-cite li span {
  padding-top: 2px;
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--mist);
}

.page-contact .co-cite-note {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--co-hair-soft);
}

/* ---------- 常见问题 ---------- */

.page-contact .co-faq {
  padding: clamp(48px, 7vw, 88px) 0 clamp(60px, 9vw, 110px);
}

.page-contact .co-acc {
  display: grid;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
  max-width: 900px;
}

.page-contact .co-acc .acc summary {
  cursor: pointer;
  font-family: var(--font-head);
  font-weight: 700;
}

.page-contact .co-acc .acc-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .co-acc .acc-body a {
  color: var(--mint);
}

.page-contact .co-acc .acc-body a:hover {
  color: var(--lime);
}

/* ---------- 响应式 ---------- */

@media (min-width: 780px) {
  .page-contact .co-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .co-hero-grid {
    grid-template-columns: 7fr 5fr;
    align-items: end;
  }

  .page-contact .co-split-grid {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }

  .page-contact .co-side {
    position: sticky;
    top: 92px;
  }

  .page-contact .co-materials-grid {
    grid-template-columns: 6fr 5fr;
    align-items: start;
  }

  .page-contact .co-geo-inner {
    grid-template-columns: 7fr 5fr;
  }

  .page-contact .co-media-grid {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }
}

@media (max-width: 420px) {
  .page-contact .co-checklist li {
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 10px;
  }

  .page-contact .co-cite li {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}
<<<END>>>